CA971673A - Stored charge transducer - Google Patents

Stored charge transducer

Info

Publication number
CA971673A
CA971673A CA167,430A CA167430A CA971673A CA 971673 A CA971673 A CA 971673A CA 167430 A CA167430 A CA 167430A CA 971673 A CA971673 A CA 971673A
Authority
CA
Canada
Prior art keywords
stored charge
charge transducer
transducer
stored
charge
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
CA167,430A
Inventor
Wendell Spence
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NCR Voyix Corp
Original Assignee
NCR Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by NCR Corp filed Critical NCR Corp
Application granted granted Critical
Publication of CA971673A publication Critical patent/CA971673A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R19/00—Electrostatic transducers
    • H04R19/01—Electrostatic transducers characterised by the use of electrets
    • H04R19/016—Electrostatic transducers characterised by the use of electrets for microphones
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R19/00—Electrostatic transducers
    • H04R19/01—Electrostatic transducers characterised by the use of electrets
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
  • Input From Keyboards Or The Like (AREA)
  • Push-Button Switches (AREA)
  • Transducers For Ultrasonic Waves (AREA)
CA167,430A 1972-05-17 1973-03-28 Stored charge transducer Expired CA971673A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US25530072A 1972-05-17 1972-05-17

Publications (1)

Publication Number Publication Date
CA971673A true CA971673A (en) 1975-07-22

Family

ID=22967703

Family Applications (1)

Application Number Title Priority Date Filing Date
CA167,430A Expired CA971673A (en) 1972-05-17 1973-03-28 Stored charge transducer

Country Status (6)

Country Link
US (1) US3786495A (en)
JP (1) JPS5123904B2 (en)
CA (1) CA971673A (en)
DE (1) DE2324211A1 (en)
FR (1) FR2184887A1 (en)
GB (1) GB1369168A (en)

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4861126A (en) * 1971-12-02 1973-08-27
US3996922A (en) * 1973-08-17 1976-12-14 Electronic Monitors, Inc. Flexible force responsive transducer
US3890511A (en) * 1974-04-15 1975-06-17 Gte Laboratories Inc Electret pulse generator
US4561002A (en) * 1982-08-30 1985-12-24 General Electric Company Capacitive touch switch arrangement
US5161128A (en) * 1990-11-30 1992-11-03 Ultrasonic Arrays, Inc. Capacitive transducer system and method
NL9101381A (en) * 1991-08-13 1993-03-01 Microtel Bv ELECTRET STRUCTURE, METHOD FOR MANUFACTURING IT, AND AN ELECTRO-ACOUSTIC TRANSDUCER OF THE ZGN. ELECTRET TYPE.
US5295490A (en) * 1993-01-21 1994-03-22 Dodakian Wayne S Self-contained apnea monitor
US5894452A (en) * 1994-10-21 1999-04-13 The Board Of Trustees Of The Leland Stanford Junior University Microfabricated ultrasonic immersion transducer
US5619476A (en) * 1994-10-21 1997-04-08 The Board Of Trustees Of The Leland Stanford Jr. Univ. Electrostatic ultrasonic transducer
FI962386A0 (en) 1996-06-07 1996-06-07 Kari Johannes Pirk Kirjavainen Electroacoustic omvandlare
US5982709A (en) * 1998-03-31 1999-11-09 The Board Of Trustees Of The Leland Stanford Junior University Acoustic transducers and method of microfabrication
CN1202693C (en) * 2000-04-26 2005-05-18 三菱电机株式会社 Semiconductor electric capacitor microphone
US7280014B2 (en) * 2001-03-13 2007-10-09 Rochester Institute Of Technology Micro-electro-mechanical switch and a method of using and making thereof
JP2002345088A (en) * 2001-05-18 2002-11-29 Mitsubishi Electric Corp Pressure sensing device and manufacturing method for semiconductor substrate used for it
AU2002303933A1 (en) * 2001-05-31 2002-12-09 Rochester Institute Of Technology Fluidic valves, agitators, and pumps and methods thereof
US6841917B2 (en) * 2001-06-11 2005-01-11 Rochester Institute Of Technology Electrostatic levitation and attraction systems and methods
US7211923B2 (en) * 2001-10-26 2007-05-01 Nth Tech Corporation Rotational motion based, electrostatic power source and methods thereof
US7378775B2 (en) * 2001-10-26 2008-05-27 Nth Tech Corporation Motion based, electrostatic power source and methods thereof
US7217582B2 (en) * 2003-08-29 2007-05-15 Rochester Institute Of Technology Method for non-damaging charge injection and a system thereof
US7287328B2 (en) * 2003-08-29 2007-10-30 Rochester Institute Of Technology Methods for distributed electrode injection
US8581308B2 (en) * 2004-02-19 2013-11-12 Rochester Institute Of Technology High temperature embedded charge devices and methods thereof
US20070074731A1 (en) * 2005-10-05 2007-04-05 Nth Tech Corporation Bio-implantable energy harvester systems and methods thereof
CA2653202A1 (en) 2006-05-25 2008-06-05 Ultra-Scan Corporation Biometrical object reader having an ultrasonic wave manipulation device
CA2660609C (en) * 2006-08-11 2016-04-26 Ultra-Scan Corporation Hydrophone array module
DE102006040725A1 (en) * 2006-08-31 2008-03-13 Siemens Ag Device for energy conversion, in particular capacitive micro-power converter
JP6232047B2 (en) * 2013-03-19 2017-11-22 仙台スマートマシーンズ株式会社 Static induction type vibration power generator and method of manufacturing the same
DE102013217312B4 (en) * 2013-08-30 2016-06-30 Robert Bosch Gmbh Capacitive MEMS device with a pressure-sensitive membrane

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3445824A (en) * 1965-11-26 1969-05-20 Automatic Elect Lab Information storage matrix utilizing electrets
US3653038A (en) * 1970-02-20 1972-03-28 United Bank Of Denver National Capacitive electric signal device and keyboard using said device
US3705312A (en) * 1970-11-02 1972-12-05 Bell Telephone Labor Inc Preparation of electret transducer elements by application of controlled breakdown electric field
US3668698A (en) * 1970-12-17 1972-06-06 Northern Electric Co Capacitive transducer
US3668417A (en) * 1970-12-28 1972-06-06 Bell Telephone Labor Inc Touch-sensitive switch employing electret foil

Also Published As

Publication number Publication date
JPS5123904B2 (en) 1976-07-20
DE2324211A1 (en) 1973-11-29
GB1369168A (en) 1974-10-02
US3786495A (en) 1974-01-15
FR2184887A1 (en) 1973-12-28
JPS4950917A (en) 1974-05-17

Similar Documents

Publication Publication Date Title
CA971673A (en) Stored charge transducer
AU462348B2 (en) Saf-t-jet
CA989001A (en) Battery construction
AU467469B2 (en) Trifluoromethylmercaptoacetamindocephalosphorins
CA1008170A (en) Electrostatic transducer
AU454372B2 (en) Childsafe actuator-overcap
CA963571A (en) Transducer
CA981796A (en) Charge amplifier
CA969637A (en) Pressure-to-electric transducer
AU466344B2 (en) Cycloalkyllactamimides
CA988900A (en) Mechanical accumulators for rollcrushers
CA977161A (en) Vibrator
CA1030647A (en) Hydrophone
AU4575372A (en) 2-acyl-5-nitrothiazoles
CA955324A (en) Moving charge transducer
CA897116A (en) Compact construction
CA910485A (en) Stored charge device
CA910672A (en) Transducer
CA913665A (en) Transducer
AU467829B2 (en) Transducer
CA908800A (en) Transducer
AU464187B2 (en) Transducers
CA912695A (en) Combination transducer
CA997415A (en) Sodium-halogen battery
CA899352A (en) Nitrofuryl oxadiazolones