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Publication numberUS20080266264 A1
Publication typeApplication
Application numberUS 12/168,426
Publication dateOct 30, 2008
Filing dateJul 7, 2008
Priority dateNov 24, 1999
Also published asEP1232506A1, US7412258, WO2001039226A1
Publication number12168426, 168426, US 2008/0266264 A1, US 2008/266264 A1, US 20080266264 A1, US 20080266264A1, US 2008266264 A1, US 2008266264A1, US-A1-20080266264, US-A1-2008266264, US2008/0266264A1, US2008/266264A1, US20080266264 A1, US20080266264A1, US2008266264 A1, US2008266264A1
InventorsMarkku Lipponen, Ari Aho
Original AssigneeNokia Corporation
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Electronic device and a method in an electronic device
US 20080266264 A1
Abstract
An electronic device (1) comprises preferably at least a keyboard (4), which comprises at least one key (15 a , 15 b) for controlling the functions of a mobile station (1). This keyboard (4) is arranged as a keyboard plate (16). Said keyboard (4) is implemented so that it also comprises a touch sensitive element (19), over which said keyboard plate (16) is arranged so that the depression of a key is arranged to be transmitted to a touch sensitive element (19) essentially at the point of a key (15 a , 15 b). In addition, the electronic device (1) comprises means (21, 22 b) for determining the point of depression from the touch sensitive element (19), whereby on the basis of the determined point of depression it is determined which key (15 a , 15 b) has been depressed.
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Claims(16)
1. An electronic device, having a keyboard, said keyboard comprising:
a touch sensitive element, a keyboard plate fixed over the touch sensitive element;
an array of keys integrally constructed in the keyboard plate at predetermined positions, wherein the depression of one of said keys of the keyboard plate causes said key to touch the touch sensitive element at a recognizable position on a coordinate grid of the touch sensitive element corresponding to the position of the key that is depressed; and
wherein the electronic device comprises a processor for correlating a predetermined meaning of the depressed key with the position on the grid of said touching on the touch sensitive element.
2. The electronic device according to claim 1, wherein the keyboard plate is a keyboard mat.
3. The electronic device according to claim 1, wherein the keyboard plate is a bubble membrane.
4. The electronic device according to claim 1, wherein the keyboard is slidably mounted in the electronic device.
5. The electronic device according to claim 1, which comprises at least one body housing element, wherein the keyboard is arranged for turning in relation to the body housing element.
6. The electronic device according to claim 5, wherein the keyboard is turnable between a first and a second extreme position, and further wherein, in the first extreme position the keyboard is preferably placed over the body housing element so that the keyboard functions as protection for the display and the keyboard is at least partly invisible, and in the second extreme position the keyboard is positioned so that the keyboard and the display are essentially entirely exposed.
7. The electronic device according to claim 6, further comprising another display and a second keyboard arranged for activating one or more functions of the electronic device preferably when the keyboard is in said first extreme position.
8. A method for controlling the functions of an electronic device comprising:
fixing a keyboard plate over a touch sensitive element;
forming an array of keys in the keyboard plate at predetermined positions, wherein depression of one of said keys of the keyboard plate causes said key to touch the touch sensitive element at a recognizable position on a coordinate grid of the touch sensitive element corresponding to the position of the key that is depressed; and
causing a processor to correlate a predetermined meaning for the depressed key with the position on the grid of said touching on the touch sensitive element.
9. The method according to claim 8, wherein the keyboard is slidably mounted on the electronic device.
10. The method according to claim 8, in which the electronic device is provided with at least one body housing element, and wherein the keyboard is constructed for turning in relation to the body housing element.
11. The method according to claim 10, wherein the keyboard turns between a first and a second extreme position, and wherein, in the first extreme position the keyboard is preferably placed over the body housing so that the keyboard functions as protection for the display and the keyboard is at least partly hidden, and in the second extreme position the keyboard and the display are essentially entirely exposed.
12. The method according to claim 11, wherein the electronic device is provided with a second display and another keyboard for activating one or more functions of the electronic device when the keyboard is in said first extreme position.
13. A keyboard for an electronic device, having at least one key for controlling the functions of the electronic device, wherein said keyboard comprises:
a touch sensitive element;
a keyboard plate fixed over the touch sensitive element so that the depression of said at least one key engages and activates the touch sensitive element at a position on the touch sensitive element corresponding to the point of the key;
a position recognizing element for recognizing the touched position on the touch sensitive element; and
a processor for correlating a predetermined meaning for the depressed key with the touched position recognized by the position recognizing element.
14. The method according to claim 8, wherein the keyboard plate is a keyboard mat.
15. The method according to claim 8, wherein the keyboard plate is a bubble membrane.
16. A computer program product including a computer readable medium said computer readable medium having processor readable program code embodied therein for operating a keyboard of an electronic device having a touch sensitive element, wherein the computer readable program code comprises:
computer readable program code for causing a processor of the electronic device to recognize the touch of a key of a keyboard plate mounted over the touch sensitive element and identify the position of the touch on a coordinate grid of the touch sensitive element corresponding to the position of the key; and
computer readable program code for causing the processor of the electronic device to correlate a predetermined meaning for the depressed key with the position on the grid of said touching on the touch sensitive element.
Description
    CROSS-REFERENCE TO RELATED APPLICATIONS
  • [0001]
    This is a continuation of, claims priority to and the benefit of U.S. application Ser. No. 09/716,880 filed on Nov. 20, 2000, now allowed, which claims priority to and the benefit of Finnish Application Serial No. 19992510, filed Nov. 24, 1999, the disclosures of which are incorporated herein by reference in their entirety.
  • FIELD
  • [0002]
    The disclosed embodiments relate to an electronic device and keyboard for electronic devices.
  • BACKGROUND
  • [0003]
    In order to improve mobile communications available for people, various mobile communication equipment, such as cordless phones and mobile stations, have been provided in the prior art. A very popular piece of mobile communication equipment is the mobile station, which can be, for instance, a digital mobile station operating in a mobile communication system based on a cellular network according to the GSM standard (Global System for Mobile Communications).
  • [0004]
    Various devices for saving information, such as notebook computers, small hand-held computers or PDA (Personal Digital Assistant) devices are also known in the prior art. These devices can be used to save information given by the user, such as calendar data, notes, addresses and telephone numbers. Input of information in these devices usually takes place by means of a keyboard, but it is also possible to save textual information in some devices by writing it directly to a touch sensitive display by textual information in some devices by writing it directly to a touch sensitive display by means of a stylus, for example. The performance of these devices is continuously increasing, and they already include many properties known from PC devices (Personal Computers). Extension cards according to the PCMCIA (Personal Computer Memory Card International Association) standard are available for some devices for coupling these devices to mobile stations, for example. Then it is possible to use PDA devices, for example, by means of radio waves, to send and receive telefax messages, short messages (SMS, Short Message Service) and other text files wirelessly. In this explanation, a PDA device means a device according to the above description.
  • [0005]
    There are also known devices in which the operations of a mobile communication device and a PDA device have been combined. One such known device is the Nokia Communicator 9110, by which it is possible to connect to the Internet, use radiotelephone functions, such as receiving a call and selecting a number, and receive telefax messages, for example. The properties of mobile communication devices, such as mobile stations, are continuously increasing and usually include operations for saving the telephone numbers of persons and companies, for example. In this specification, the term mobile station means a mobile station which includes operations of the above described PDA device or a corresponding device.
  • [0006]
    In the present mobile stations as those described above and other electronic devices with a keyboard, the major problem in implementation is the large number of connection lines especially when the keyboard includes a large number of keys, such as the numerical keys and the alphabetical keys. The Nokia 9110 Communicator device, for instance, has both a numerical keyboard and an alphabetical keyboard essentially like the one in computers, but smaller. The operation of a keyboard is relatively simple, but because of the large number of connection lines, the application specific integrated circuit, ASIC, becomes rather large, and the increase in the price of the circuit also increases the price of the complete device.
  • [0007]
    Each connection line requires the implementation of a connection element on the application specific integrated circuit. This connection element uses a lot more of the surface area of the semiconductor chip used for the implementation of the application specific integrated circuit than, for example, the implementation of other logic operations. Thus the number of connection lines increases the surface area of the semiconductor chip and, on the other hand, remarkably limits the number of functions that can be implemented on the ASIC. The number of connection lines of the ASICs used in mobile stations has not changed much between different generations. At the same time, the manufacturing technology of the application specific integrated circuits has developed from the line width of 0.55 μm to the line width of 0.18 μm, and the packing density of the logic has become 16 times higher. Because similar development will probably continue, the connection lines will form a more considerable limitation for the implementation of application specific integrated circuits.
  • [0008]
    Each keyboard connection line coupled to an application specific integrated circuit must be protected against an electrical static discharge (ESD). A keyboard is very sensitive to problems caused by an electrical static discharge. Because of this, there have been problems with electrostatic protection of the keyboard in the design of mobile stations including PDA properties. With the present application specific integrated circuits, which have a line width of 0.25-0.35 μm, it is not possible to implement sufficient electrostatic protection in the application specific integrated circuit internally, but the protection must be realized with components external to the application specific integrated circuit. This again results in the situation that the components that protect from an electrostatic discharge increase the surface area and price of the circuit board. The situation will become even more difficult in the future when the manufacturing technologies of application specific integrated circuits develop towards even more narrow line widths.
  • [0009]
    In mobile stations in which the keyboard is implemented in a sliding or turning element of the mobile station, the problem is the realization of the interface between the mobile station and the keyboard, because a prior art keyboard of a mobile communication device implemented with a circuit board requires more than ten separate signals. The more signals have to be taken over this interface, the more complicated, more expensive and more vulnerable to errors the implementation becomes. In addition, the keyboards implemented by means of a circuit board according to the above have the problem that they are relatively thick.
  • [0010]
    A known electronic device like the one described above, in which an attempt has been made to solve the above described problems, has been presented in the U.S. Pat. No. 5,584,054. An electronic device comprises a touch sensitive display disposed in the body housing element, whereby the operations of the electronic device can be controlled by touching the activation areas of the display. The touch sensitive display also comprises a display area in which information used in mobile stations, such as telephone numbers, can be shown. In connection with the touch sensitive screen, there is provided a rigid cover arranged as movable with a hinge, which can be turned in a closed position over the touch sensitive display. In apertures made in the cover, there are also arranged mechanical activation elements, or keys, so that when the activation elements are depressed when the cover is in the closed position, they touch the activation areas of the touch sensitive display and thus transmit the depression to the display for activating the functions of the device. The electronic device presented in the U.S. Pat. No. 5,584,054 operates as a mobile station when the cover is in the closed position. The electronic device also operates as a PDA device when the cover is in the opened position, whereby the operations of the electronic device can be controlled by touching the activation areas of the display directly with a finger or a pointed object resembling a pen. When the cover is in the opened position, depressing the keys has no effect, because in this position of the cover the movement of the keys does not extend to the touch sensitive screen. The hinge of the cover of the electronic device is provided with a switch, which recognizes the position of the cover and controls the operation of the electronic device. The cover also functions as a protective cover for the touch sensitive display. The prior art technology also provides mobile stations with a rigid, level, non-transparent cover, which protects the keyboard disposed in the body of the mobile station and which can be opened and closed. The cover is often provided with an opening, through which the display or display area of the mobile station can be read. Often the cover also includes the microphone of the mobile station, whereby the cover must be opened for the duration of the phone call.
  • [0011]
    In an electronic device according to the invention described above it is not possible to use the keyboard and the whole display at the same time. When the cover is closed for using the keyboard, only a small portion of the possible display area is available for use. When a part of the display area is reserved as activation areas, it is not possible to present as much information on the display as in electronic devices with a separate keyboard and a display. When the cover of the electronic device is open and the electronic device is used by means of the touch-screen display, the whole display area is still not in use, because part of the display area is reserved as activation areas. In addition, it is difficult for the user to get any other feedback from pressing the activation area than possible changes on the display.
  • SUMMARY OF THE DISCLOSED EMBODIMENTS
  • [0012]
    The aspects of the disclosed embodiments provide an electronic device in which the whole display area and keyboard are available for use at the same time. In one aspect this can be achieved by implementing the keyboard instead of the display as a separate element which can be exposed by sliding or turning. In another aspect, the disclosed embodiments are directed to an electronic device, in which the keyboard interface is much simpler than in the conventional solution. In one embodiment, this can be achieved by implementing the keyboard by means of a touch sensitive element. A third aspect of the disclosed embodiments is to provide a keyboard of an electronic device, which gives the user immediate feedback for the success of the depression of a key. In one embodiment, this can be achieved by placing a conventional keyboard mat or membrane over the touch sensitive element. A fourth aspect of the disclosed embodiments is to provide a keyboard element of an electronic device, which would be considerably thinner compared to the prior art solutions. In one embodiment, this can be achieved by implementing the keyboard by means of a touch sensitive element.
  • [0013]
    The disclosed embodiments provide considerable advantages as compared to the prior art solutions. When the electronic device has a keyboard disposed in a separate element, which is exposed by sliding or turning, it is not necessary to reserve certain areas of the display as activation areas for the keyboard, but the entire display area is available for displaying the information to be presented. When the keyboard is implemented with a touch sensitive element, the interface between the keyboard and the body of the electronic device becomes much simpler, and the number of I/O (input/output) signals can be reduced to two at the best, whereby the construction becomes much simpler, cheaper and less vulnerable to damage. When a prior art keyboard mat has been installed on the touch sensitive element, the user receives a good feedback when depressing a key, which is a very important property of a user interface. Especially people with large fingers will find it much easier to use the small keys of mobile stations correctly, if the user has a good tactile feel of the keyboard. A good tactile feel can be provided for the user by using a keyboard mat similar to the conventional type on top of the touch sensitive element.
  • BRIEF DESCRIPTION OF THE DRAWINGS
  • [0014]
    In the following, the invention will be described in more detail with reference to the accompanying drawings, in which
  • [0015]
    FIG. 1 shows an electronic device according to a preferred embodiment, in which the keyboard is implemented in an element which slides out.
  • [0016]
    FIG. 2 shows an electronic device according to FIG. 1 seen from above and the keyboard element as pushed into the body of the device,
  • [0017]
    FIG. 3 shows an electronic device according to FIG. 1 as seen from the section A-A.
  • [0018]
    FIG. 4 shows a schematic diagram of the electronic device and a preferred implementation of the touch sensitive element,
  • [0019]
    FIG. 5 shows an electronic device according to a preferred embodiment of the invention, in which the exposable keyboard is implemented in a turning element.
  • [0020]
    FIG. 6 shows the electronic device according to FIG. 5 seen from above and the keyboard element in the closed position.
  • DETAILED DESCRIPTION OF THE DISCLOSED EMBODIMENTS
  • [0021]
    A keyboard of an electronic device according to the invention can be used, for example, in PDA devices, portable computers and mobile stations. In this specification, a mobile station is used as an example of an electronic device. FIG. 1 shows a mobile station 1 according to the invention, which comprises a keyboard element 3 and a body housing element 2, the front panel 2 a of which includes a display 5, a microphone 6, an earphone 7 and possibly one or more function keys 8. It is clear that, for instance, some of the function keys 8 can also be placed in an other part of the housing than the front panel 2 a. The keyboard element 3 includes the keyboard 4 of the mobile station. In addition, the body housing element includes a sensor element 27, such as a switch, which recognizes if the keyboard element 3 is out or pushed into the body housing element 2.
  • [0022]
    The display 5 is preferably a depression responsive touch sensitive liquid crystal display (LCD), which also recognizes a touch with a weak intensity. The liquid crystal display is provided with, for instance, a touch sensitive membrane or other corresponding and well known technology, which also recognizes the touching point. When the keyboard element is not exposed, or it is pushed into the body 2 as shown in FIG. 2, this touch sensitive display 5 preferably comprises a group 9 of activation areas for activating the telephone functions of the device 1 by touching the activation areas 13 and preferably at least one display area 10 for presenting variable information, such as a telephone number, the state of the battery 11 of the device and the strength of the signal 12 received by the device 1. The user activates the operations normally by depressing the keys lightly with a finger, but the depression can also be carried out with a pointed object or the like, when the touch-recognition technology used allows it. The points to be depressed, or the activation areas 13 for activating different telephone functions of the device 1 can also be shown by rectangles, circles or corresponding figures drawn on the display 5 by the control program of the device 1, combined with symbols or other markings in connection with the figures, when required. The size, shape and location of these activation areas 13 and the display area 10 can vary. In addition, there can be many separate display areas 10 on the display.
  • [0023]
    The telephone functions mentioned above are preferably functions which can be performed in conventional telephones with a memory for telephone numbers and the corresponding names. Functions like this are calling, answering an incoming call and retrieving a telephone number from the memory. The number memory can be browsed, for example, by function keys 8 or by activation areas 13 created for browsing.
  • [0024]
    Other functions that are well known from conventional mobile stations and PDA devices, such as handling text messages, saving telephone numbers, keeping a calendar and selecting a ringing tone, are preferably performed when the keyboard element 3 is drawn out from the bottom of the body housing element 2. Then the user has a display area 10 with the full size of the display 5 available for the presentation of information and a good keyboard 4 for the input of information. It is also possible that part of the display 5 is reserved for the use of the activation areas 9, whereby only part of the area of the display 5 remains for the use of the display area 10. However, when the keyboard element is drawn out, the need for activation areas is smaller, and thus more room remains for the display area than when the keyboard element 3 is pushed into the body housing element 2.
  • [0025]
    FIG. 3 shows a cross-section of a keyboard element 3 of a mobile station according to a preferred embodiment of the invention. This keyboard element 3 preferably comprises a housing element 14, a touch sensitive element 19 known per se and a keyboard mat 16 known per se, which in turn consists of keys 15 a, 15 b, spring means 17 and a support means 18. The spring means is preferably made of some elastic material, and it is fastened to both the support means and the key, thus tying the key and the support means elastically together. The purpose of the spring means is to enable the mobility of the keys so that the key can be pressed down 15 b, and when the key is released, it returns up 15 a. The support means 18 is preferably a plate made of rigid material with holes for each key 15 a, 15 b supported by a spring means 17. The support means 18 is fastened at the edges securely to the housing 14 of the keyboard element so that when the keys are up 15 a, the touching element 20 of each key is essentially at the same, specified distance from the touch sensitive element. This distance can be, for example, 0.3-1.0 mm.
  • [0026]
    The implementation of the keyboard 4 is such that a keyboard plate 16 is placed over the touch sensitive element 19. This keyboard plate is installed over the touch sensitive element as fixed. The keyboard plate is preferably a keyboard mat, whereby the user gets a good tactile feel of the keyboard and as good feedback as possible when a key is depressed. Then an experienced writer can write merely on the basis of the feel and looking at the writing on the display. In the scope of this invention, the keyboard plate 16 can also be a membrane (not shown), preferably a bubble membrane, on which key markings have been made for showing the places of the keys 15 a, 15 b. An alternative way for manufacturing the keyboard plate 16 is to form the keyboard plate 16 of separate keys and a supporting plate (not shown). One more alternative is to manufacture the keyboard plate 16 with two-phase injection moulding. Then the frame is made of rigid material, such as rigid plastic, and in the second phase its holes are filled by injection moulding with some softer and more elastic material, such as a soft plastic mixture, thus forming the keys (15 a, 15 b) so that the frame and the keys form a solid entity.
  • [0027]
    The touch sensitive element 19 can be implemented so, for instance, that it is preferably formed of two essentially rectangular membranes of the same size 19 a, 19 b (FIG. 4), which are arranged at a specified distance from each other and preferably essentially parallel. The membrane on top, or the one on which the touch is targeted, is made of some resistive material. On the upper membrane there are two conductors Xin, Yin connected on adjacent sides, and the other sides are connected to the 0 potential. On the lower membrane there are also conductors Xout and Yout connected on adjacent sides. Xin and Xout are connected on the same sides of the membranes 19 a, 19 b and essentially at the same points. Correspondingly, Yin and Yout are connected on the same sides of the membranes 19 a, 19 b and essentially at the same points.
  • [0028]
    When a key is pressed down 15 b, the touching element 20 presses the touch sensitive element 19 below it with such a great strength that the upper membrane 19 a touches the surface of the lower membrane 19 b, and thus a contact is created between the membranes. An A/D converter 22 b detects the depression by examining at times, which is called polling, whether a key has been depressed. For the duration of the polling, a constant voltage is preferably switched from the D/A converter 22 a to the Xin line, for example, and the voltage of the Xout line is measured. If the voltage differs essentially from zero, a key has been depressed, whereupon the X coordinate is calculated from the voltage value. The voltage in the Xout line is the higher the closer the contact point is to the edge to which the conductors Xin and Xout are connected. After this, the Y coordinate is received in a corresponding manner preferably by switching a constant voltage to the Yin line from the D/A converter 22 a and by measuring the voltage of the Yout line. The voltage in the Yout line is also the higher the closer the contact point is to the edge to which the conductors Yin and Yout are connected. For the duration of specifying the X coordinate, Yin is switched to a high-impedance mode to prevent it from distorting the measurement result. Correspondingly, Xin is switched to a high-impedance mode when the Y coordinate is being specified.
  • [0029]
    Another alternative method for manufacturing a touch sensitive element 19 is to use an EMFi membrane (not shown). The EMFi membrane consists of a porous polypropylene membrane, which is coated with an electricity conducting metal layer. The pores of the polypropylene membrane have an electric charge, whereby the force effect targeted at the EMFi membrane presses the porous polypropylene membrane, which causes a change in the intensity of the electric field of the EMFi membrane. This again causes a transfer of charges between metal surfaces. This transfer of charges can be detected by switching the metal surfaces to an external electrical circuit, in which the current strength in this circuit is measured.
  • [0030]
    Because in a mobile station 1 according to a preferred embodiment, the keyboard 4 is implemented by using a touch sensitive element 19, there is much more room left on the circuit board (not shown) for other components. Alternatively, the circuit board can be made thinner or its size reduced considerably, whereby the manufacturing costs of the mobile station 1 are also substantially reduced. This is due to the fact that in the prior art implementations the keyboard is normally constructed on a circuit board. In a mobile station 1 according to the invention, only four lines need to be drawn on the circuit board for the keyboard.
  • [0031]
    With a mobile station 1 according to a preferred embodiment, it is very easy to change the keyboard 4 to one with a different appearance, location, number or meaning of the keys 15 a, 15 b. This can be done by changing the desired keyboard mat 16 to the mobile station and by programming the coordinates and meaning of the keys in place of the old ones. It is also possible to save many different keyboard appearances to the memory 23 of the mobile station 1, whereby the keyboard can be changed by changing the keyboard mat 16 to the mobile station 1 and by selecting the setting corresponding to the keyboard mat 16 from the menu of the mobile station 1. This provides, among other things, the advantage that companies that manufacture mobile stations need not manufacture different mobile stations for each different language area, but the same model of a mobile station can be used in all the places where the same telecommunications standard is used. The manufacturers need to take the appearance of the keyboard 4 into account at the end of the manufacturing process by installing the correct keyboard mat 16 in the mobile station and by selecting from the menu of the mobile station 1 the setting which corresponds to the keyboard mat 16 or by programming the coordinates and meaning of the keys in place of the old ones.
  • [0032]
    The mobile station can also be implemented so that the keyboard element 3 is arranged in relation to the body housing element 2 as turning by means of at least one hinge 26 as shown in FIG. 5. In this case the display 5 and the keyboard 4 are located preferably so that when the keyboard element 3 is in the closed position, or the keyboard element functions as protection for the display 3, the keyboard 4 is within the mobile station 1. In order to make it possible to use the telephone functions without turning the keyboard element out, another display 24 and another keyboard 25 are preferably arranged in the mobile station as shown in FIG. 6. This other keyboard 25 preferably comprises only the keys needed for using all the telephone functions. The other display 24 is preferably such that all the necessary information for using the telephone functions can be shown on it.
  • [0033]
    It is clear that in practical applications, the mobile station 1 according to the invention can differ from the embodiments described above. For example, the mobile station 1 can be implemented so that the keyboard is disposed in the body housing element 2 and the display 5 in an exposable, sliding or turning display element. It is also possible to install both the keyboard 4 and the display in the body housing element 2, but then the size of the mobile station would become larger than in the embodiments described above.
  • [0034]
    The disclosed embodiments are not limited to the above described embodiments only, but its details can be modified without departing from the scope defined by the attached claims.
Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US298035 *Sep 29, 1883May 6, 1884 Cuff-holder
US298243 *Nov 23, 1882May 6, 1884The Consolishayee
US319234 *Apr 28, 1884Jun 2, 1885 Brooding-house for chickens
US336472 *Feb 16, 1886 Weighing-scale
US337764 *Mar 9, 1886 Glass-mold
US356085 *Jan 11, 1887 Locomotive engine
US381020 *Apr 10, 1888 Flour
US431701 *Oct 26, 1889Jul 8, 1890 Pneumatic dispatch-tube receiver
US4202041 *Jul 11, 1977May 6, 1980Massachusetts Institute Of TechnologyDynamically variable keyboard terminal
US4279021 *Feb 15, 1979Jul 14, 1981Telxon CorporationPortable data entry apparatus including plural selectable functional configurations
US4326930 *Feb 9, 1979Apr 27, 1982Bbc Brown, Boveri & Company, LimitedMethod for electrolytic deposition of metals
US4336120 *Mar 4, 1981Jun 22, 1982Toko, Inc.Method of fabricating a zinc oxide thin film
US4374354 *Jun 23, 1981Feb 15, 1983Teledyne Industries, Inc.Rechargeable electric portable appliance
US4427848 *Dec 29, 1981Mar 29, 1994Telephone Lottery Company IncTelephonic alphanumeric data transmission system
US4453217 *Jan 4, 1982Jun 5, 1984Bell Telephone Laboratories, IncorporatedDirectory lookup method and apparatus
US4461934 *Dec 20, 1982Jul 24, 1984At&T Technologies, Inc.Click disc switch assembly
US4499343 *Mar 10, 1983Feb 12, 1985Rogers CorporationMonolithic flat tactile keyboard
US4499662 *Dec 12, 1983Feb 19, 1985Sony CorporationInjection molding method for making a switch
US4532575 *Dec 23, 1982Jul 30, 1985Canon Kabushiki KaishaElectronic equipment having key input function
US4654546 *Nov 20, 1984Mar 31, 1987Kari KirjavainenElectromechanical film and procedure for manufacturing same
US4739128 *Nov 10, 1986Apr 19, 1988American Telephone And Telegraph Company, At&T Bell LaboratoriesThumb-controlled, hand-held joystick
US4801768 *Jul 6, 1987Jan 31, 1989Casio Computer Co., Ltd.Compact electronic device
US4816275 *Dec 7, 1987Mar 28, 1989Chock Full O'nuts Corp.Decaffeination of aqueous extracts
US4847452 *Jun 13, 1988Jul 11, 1989Oki Electric Industry Co., Ltd.Key switch structure for a thin-gage electronic device
US4903222 *Oct 14, 1988Feb 20, 1990Compag Computer CorporationArrangement of components in a laptop computer system
US4916996 *Apr 13, 1987Apr 17, 1990Yamaha Corp.Musical tone generating apparatus with reduced data storage requirements
US4918721 *Aug 24, 1988Apr 17, 1990Hashimoto CorporationPush button phone capable of sending to the telephone line alphabetical characters
US4933660 *Oct 27, 1989Jun 12, 1990Elographics, Inc.Touch sensor with touch pressure capability
US4937408 *May 24, 1989Jun 26, 1990Mitsubishi Denki Kabushiki KaishaSelf-illuminating panel switch
US5109539 *Nov 1, 1989Apr 28, 1992Mitsubishi Denki Kabushiki KaishaPortable communication device
US5128981 *May 21, 1990Jul 7, 1992Hitachi, Ltd.Radio communication system and a portable wireless terminal
US5131038 *Nov 7, 1990Jul 14, 1992Motorola, Inc.Portable authentification system
US5189632 *Jul 23, 1991Feb 23, 1993Oy Nokia AbPortable personal computer and mobile telephone device
US5193668 *Apr 22, 1991Mar 16, 1993Sharp Kabushiki KaishaTouch-sensitive panel and display apparatus using the touch-sensitive panel
US5220318 *Aug 20, 1990Jun 15, 1993Ampex CorporationApparatus for selectively varying keyboard switching force
US5224205 *May 21, 1990Jun 29, 1993International Business Machines Corp.Method of combining architecturally dissimilar computing networks into a single logical network
US5276736 *Jul 13, 1992Jan 4, 1994David ChaumOptionally moderated transaction systems
US5326589 *Feb 4, 1993Jul 5, 1994Shin-Etsu Chemical Co., LtdMethod of protecting electronic or electric part
US5329589 *Jun 3, 1993Jul 12, 1994At&T Bell LaboratoriesMediation of transactions by a communications system
US5329609 *Jul 30, 1991Jul 12, 1994Fujitsu LimitedRecognition apparatus with function of displaying plural recognition candidates
US5392447 *Jan 10, 1992Feb 21, 1995Eastman Kodak CompayImage-based electronic pocket organizer with integral scanning unit
US5397867 *Mar 23, 1993Mar 14, 1995Lucas Industries, Inc.Light distribution for illuminated keyboard switches and displays
US5404390 *Dec 20, 1993Apr 4, 1995Nec CorporationPortable telephone set
US5404580 *May 4, 1994Apr 4, 1995Motorola, Inc.Radio having memory means for storing radio user validation code
US5408060 *Jun 29, 1994Apr 18, 1995Nokia Mobile Phones Ltd.Illuminated pushbutton keyboard
US5414457 *Dec 26, 1991May 9, 1995Canon Kabushiki KaishaMulti-media communication apparatus
US5418549 *Jun 14, 1993May 23, 1995Motorola, Inc.Resolution compensating scroll bar valuator
US5422656 *Nov 1, 1993Jun 6, 1995International Business Machines Corp.Personal communicator having improved contrast control for a liquid crystal, touch sensitive display
US5434566 *Sep 15, 1994Jul 18, 1995Fujitsu LimitedKey touch adjusting method and device
US5493604 *May 16, 1994Feb 20, 1996Nec CorporationPortable telephone set with automatic dialing feature
US5521890 *Oct 21, 1994May 28, 1996Smh Management Services AgPush-piece crown for a timepiece
US5523754 *Sep 20, 1993Jun 4, 1996International Business Machines CorporationMethod and apparatus for automatic keyboard configuration by layout
US5596487 *Jul 31, 1995Jan 21, 1997Motorola, Inc.Apparatus for RF shielding radio circuitry
US5604492 *Jul 28, 1995Feb 18, 1997Motorola, Inc.Apparatus and method for directory-linked canned pager messages
US5604805 *Feb 9, 1996Feb 18, 1997Brands; Stefanus A.Privacy-protected transfer of electronic information
US5609508 *Oct 23, 1995Mar 11, 1997Sony CorporationToy telephone with visual display for recorded messages
US5610971 *Dec 19, 1994Mar 11, 1997Delco Electronics CorporaitonDual keypad telephone handset for mobile communications
US5614926 *Dec 19, 1995Mar 25, 1997Sharp Kabushiki KaishaWord processor with a handwriting text processing function
US5632548 *Oct 12, 1995May 27, 1997Mayfarth; Roger C.Pressure actuated light with digit accommodating housing means
US5712913 *Feb 8, 1994Jan 27, 1998Digicash IncorporatedLimited-traceability systems
US5734137 *Jul 22, 1996Mar 31, 1998Ericsson, Inc.Universal keypad assembly
US5742894 *Apr 13, 1995Apr 21, 1998Motorola, Inc.Radio communication device having a moveable housing element and keypad disposed therein
US5745680 *Aug 2, 1996Apr 28, 1998International Business Machine Corp.Interconnected networks and methods for communicating therebetween using virtual communications links
US5889852 *Feb 10, 1997Mar 30, 1999Nokia Mobile Phones LimitedPhoto screen scroll graphic user interface
US5901223 *Apr 2, 1997May 4, 1999Sony CorporationWireless telephone with extension having peripheral devices provided thereon
US5911317 *Aug 26, 1997Jun 15, 1999Silitek CorporationLight permeable metal plated rubber key
US5917476 *Sep 24, 1996Jun 29, 1999Czerniecki; George V.Cursor feedback text input method
US5917906 *Oct 1, 1997Jun 29, 1999Ericsson Inc.Touch pad with tactile feature
US6014661 *May 2, 1997Jan 11, 2000Ivee Development AbSystem and method for automatic analysis of data bases and for user-controlled dynamic querying
US6043760 *Feb 2, 1998Mar 28, 2000Nokia Mobile Phones Ltd.Language-dependent letter input by means of number keys
US6049796 *Feb 24, 1997Apr 11, 2000Nokia Mobile Phones LimitedPersonal digital assistant with real time search capability
US6064734 *Nov 21, 1997May 16, 2000Sony Corporation Of JapanTelephone with sliding keypad
US6067005 *May 7, 1999May 23, 2000Devolpi; Dean R.Multi-speed multi-direction analog pointing device
US6067074 *Aug 19, 1994May 23, 2000Texas Instruments IncorporatedKeyboard with flexible display and prompt capability
US6196738 *Jul 28, 1999Mar 6, 2001Shin-Etsu Polymer Co., Ltd.Key top element, push button switch element and method for manufacturing same
US6216989 *Mar 22, 1996Apr 17, 2001Canon Kabushiki KaishaSupport structure and display apparatus equipped with the support structure
US6226618 *Aug 13, 1998May 1, 2001International Business Machines CorporationElectronic content delivery system
US6241531 *Dec 17, 1999Jun 5, 2001Ohio Associated Enterprises, Inc.Compression interconnect system for stacked circuit boards and method
US6243080 *Jul 14, 1998Jun 5, 2001Ericsson Inc.Touch-sensitive panel with selector
US6243595 *Jun 16, 1998Jun 5, 2001Nortel Networks LimitedPortable wireless communication device having an extendible section
US6339438 *Jul 27, 1999Jan 15, 2002International Business Machines CorporationScroll bar with integrated advertisement
US6389302 *Apr 28, 1999May 14, 2002Ericsson Inc.Methods and apparatus for causing wireless communication devices to vibrate via piezo-ceramic vibrators
US6397078 *Aug 25, 2000May 28, 2002Young S. KimCombined mobile telephone and personal digital assistant
US6411285 *Feb 28, 2000Jun 25, 2002Sharp Kabushiki KaishaTouch-panel input type electronic device
US6512530 *Jan 19, 2000Jan 28, 2003Xerox CorporationSystems and methods for mimicking an image forming or capture device control panel control element
US6532147 *Sep 24, 1999Mar 11, 2003International Business Machines CorporationFlexible monitor/display on mobile device
US6535749 *Mar 8, 1999Mar 18, 2003Mitsubishi Denki Kabushiki KaishaMobile information terminal equipment and portable electronic apparatus
US6549789 *Apr 28, 2000Apr 15, 2003Motorola Inc.Portable electronic device with an adaptable user interface
US6569910 *May 11, 2000May 27, 2003Basf AktiengesellschaftIon exchange resins and methods of making the same
US6571086 *Dec 7, 1999May 27, 2003Nokia Mobile Phones Ltd.Wireless communication device and a control means
US6697483 *Nov 6, 1998Feb 24, 2004Nokia Mobile Phones LimitedMethod and apparatus for searching a database
US6847310 *Jun 21, 2002Jan 25, 2005Bsquare CorporationKeyboard
US6867764 *Mar 22, 2001Mar 15, 2005Sony CorporationData entry user interface
US7006077 *Nov 30, 1999Feb 28, 2006Nokia Mobile Phones, Ltd.Electronic device having touch sensitive slide
US7010834 *Sep 10, 2002Mar 14, 2006Nokia CorporationHinge assembly, and associated method, providing multiple axes of rotation
US7060923 *Jun 10, 2004Jun 13, 2006Nokia CorporationKey
US7330547 *Feb 26, 2004Feb 12, 2008Nokia CorporationDual keypad phone
US20010050988 *Feb 26, 1999Dec 13, 2001Bent Ole PoulsenDisplay assembly for a communication unit
US20030025679 *Jun 6, 2002Feb 6, 2003Cirque CorporationSystem for disposing a proximity sensitive touchpad behind a mobile phone keypad
US20060009861 *May 25, 2005Jan 12, 2006Gaetano BonasiaMethod of adding a device to a network
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US8154527 *Jan 5, 2009Apr 10, 2012Tactus TechnologyUser interface system
US8179375 *May 15, 2012Tactus TechnologyUser interface system and method
US8179377 *May 15, 2012Tactus TechnologyUser interface system
US8199124 *Jan 5, 2010Jun 12, 2012Tactus TechnologyUser interface system
US8207950 *Jun 26, 2012Tactus TechnologiesUser interface enhancement system
US8243038 *Aug 14, 2012Tactus TechnologiesMethod for adjusting the user interface of a device
US8456438Jun 4, 2013Tactus Technology, Inc.User interface system
US8520395 *Mar 23, 2007Aug 27, 2013Nokia CorporationSliding module with electrical connection paths
US8547339 *Jan 4, 2008Oct 1, 2013Tactus Technology, Inc.System and methods for raised touch screens
US8553005Mar 7, 2012Oct 8, 2013Tactus Technology, Inc.User interface system
US8570295Mar 7, 2012Oct 29, 2013Tactus Technology, Inc.User interface system
US8587541Apr 19, 2011Nov 19, 2013Tactus Technology, Inc.Method for actuating a tactile interface layer
US8587548May 7, 2012Nov 19, 2013Tactus Technology, Inc.Method for adjusting the user interface of a device
US8619035Feb 9, 2011Dec 31, 2013Tactus Technology, Inc.Method for assisting user input to a device
US8717326Aug 29, 2013May 6, 2014Tactus Technology, Inc.System and methods for raised touch screens
US8723832Oct 15, 2013May 13, 2014Tactus Technology, Inc.Method for actuating a tactile interface layer
US8922510May 25, 2012Dec 30, 2014Tactus Technology, Inc.User interface system
US8947383Apr 25, 2012Feb 3, 2015Tactus Technology, Inc.User interface system and method
US8970403Apr 19, 2011Mar 3, 2015Tactus Technology, Inc.Method for actuating a tactile interface layer
US9013417Apr 19, 2011Apr 21, 2015Tactus Technology, Inc.User interface system
US9019228Mar 4, 2014Apr 28, 2015Tactus Technology, Inc.User interface system
US9035898Apr 1, 2014May 19, 2015Tactus Technology, Inc.System and methods for raised touch screens
US9052790May 16, 2013Jun 9, 2015Tactus Technology, Inc.User interface and methods
US9063627May 16, 2013Jun 23, 2015Tactus Technology, Inc.User interface and methods
US9075525Apr 25, 2012Jul 7, 2015Tactus Technology, Inc.User interface system
US9098141May 6, 2013Aug 4, 2015Tactus Technology, Inc.User interface system
US9116617May 7, 2012Aug 25, 2015Tactus Technology, Inc.User interface enhancement system
US9128525Nov 15, 2013Sep 8, 2015Tactus Technology, Inc.Dynamic tactile interface
US9207795Oct 14, 2014Dec 8, 2015Tactus Technology, Inc.User interface system
US9229571Oct 15, 2013Jan 5, 2016Tactus Technology, Inc.Method for adjusting the user interface of a device
US9239623Sep 8, 2014Jan 19, 2016Tactus Technology, Inc.Dynamic tactile interface
US9274612Mar 7, 2012Mar 1, 2016Tactus Technology, Inc.User interface system
US9280224Sep 24, 2013Mar 8, 2016Tactus Technology, Inc.Dynamic tactile interface and methods
US9298261Aug 28, 2014Mar 29, 2016Tactus Technology, Inc.Method for actuating a tactile interface layer
US9298262Sep 8, 2014Mar 29, 2016Tactus Technology, Inc.Dynamic tactile interface
US9367132Mar 11, 2011Jun 14, 2016Tactus Technology, Inc.User interface system
US9372539Apr 1, 2014Jun 21, 2016Tactus Technology, Inc.Method for actuating a tactile interface layer
US9372565Nov 24, 2014Jun 21, 2016Tactus Technology, Inc.Dynamic tactile interface
US20090174673 *Jan 4, 2008Jul 9, 2009Ciesla Craig MSystem and methods for raised touch screens
US20090174687 *Jan 5, 2009Jul 9, 2009Craig Michael CieslaUser Interface System
US20100103137 *Jul 3, 2009Apr 29, 2010Craig Michael CieslaUser interface system and method
US20100171719 *Jul 8, 2010Ciesla Michael CraigUser interface system
US20100171720 *Jan 5, 2010Jul 8, 2010Ciesla Michael CraigUser interface system
US20100290198 *Mar 23, 2007Nov 18, 2010Nokia CorporationSliding Module With Electrical Connection Paths
US20110001613 *Jan 6, 2011Craig Michael CieslaMethod for adjusting the user interface of a device
US20110012851 *Jul 5, 2010Jan 20, 2011Craig Michael CieslaUser Interface Enhancement System
US20110148793 *Jun 23, 2011Craig Michael CieslaUser Interface System
US20110157080 *Jun 30, 2011Craig Michael CieslaUser Interface System
USD666982 *Sep 11, 2012Research In Motion LimitedElectronic device
USD666983 *Sep 11, 2012Research In Motion LimitedElectronic device
USD733125 *Jun 28, 2013Jun 30, 2015Samsung Electronics Co., Ltd.Tablet computer
Classifications
U.S. Classification345/169
International ClassificationG06F3/02, H04M1/02, H01H13/84, G06F1/16, H04M1/23
Cooperative ClassificationH01H2239/074, G06F1/1647, G06F1/1616, H01H2223/028, H04M2250/22, H01H2239/064, H01H2223/018, G06F3/0202, G06F1/1626, H04M1/0202, G06F1/1677, H04M1/23, G06F1/1671, H01H13/84, G06F1/1698, H01H2223/046, H01H2231/022, H01H2223/04, G06F1/1624
European ClassificationG06F1/16P9D5, G06F1/16P9M2, G06F1/16P9P9, G06F1/16P9K10, G06F1/16P1S, G06F1/16P1F, G06F3/02A, H04M1/02A, G06F1/16P3, H01H13/84
Legal Events
DateCodeEventDescription
Jan 21, 2010ASAssignment
Owner name: NOKIA CAPITAL, INC., NEW YORK
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:NOKIA CORPORATION;REEL/FRAME:023821/0468
Effective date: 20100111
Owner name: MOBILEMEDIA IDEAS LLC, MARYLAND
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:NOKIA CAPITAL, INC;REEL/FRAME:023828/0457
Effective date: 20100111