CN1263385A - 便携式通信装置中的传感器控制用户接口 - Google Patents
便携式通信装置中的传感器控制用户接口 Download PDFInfo
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- H04M1/02—Constructional features of telephone sets
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- H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
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Abstract
一个便携式通信装置具有一个处理部分和一个用户接口,这个处理部分对一个输入信号作出响应来控制便携式通信装置的操作,这个用户接口具有产生这个输入信号的一个触摸式传感输入装置,这个便携式通信装置还具有一个传感器。当便携式通信装置被放置在靠近一个用户的一个位置时,这个传感器关闭触摸式传感输入装置,以停止产生输入信号,由此,避免当用户拿着便携式通信装置并将它放在他或者她的头部来进行通信时产生无意识的激发。
Description
本发明一般涉及便携式通信装置，更特别地，涉及使用一个传感器来控制一个便携式通信装置中的一个用户接口。
制造和销售便携式通信装置，例如便携式无线电话，已经成为一个有竞争性的行业。为了成功，便携式通信装置的提供者必须进行持续的努力，以不仅仅是满足用户的需求，而且要超过用户的需求。在这样做的过程中，便携式通信装置的提供者已经改善了其便携式通信装置的用户接口。一个改善用户接口的方法是在用户接口中增加一个触摸式传感输入装置，例如一个触摸屏幕或者触摸键盘。触摸式传感输入装置的刺激允许一个用户经过指头的触摸或者手写来控制一个便携式通信装置的操作。一类熟知的、已经包括一个触摸式传感输入装置的便携式通信装置是一个“灵巧电话”。灵巧电话是一个单个便携式电话，其中集成了无线电话的功能和个人计算机(PC)或者个人数字助理(PDA)的功能。在美国专利号No.5,715,524，Jambheker等在1998年2月3日申请的、题为“带可移动机壳部件控制的无线通信装置”中已经显示和描述了一个灵巧电话的一个示例，这个专利已经被转让给本申请的受让人摩托罗拉公司。
将一个触摸式传感输入装置容纳到一个用户接口是有问题的。便携式无线电话的传统用户接口，包括一个扬声器，一个显示器，一个键盘和一个麦克风，是作为整体被安装在便携式无线电话的一侧的。希望能够将触摸式传感输入装置安装在与显示器侧相同的便携式无线电话的一侧，因为至少某些对触摸式传感输入装置的激发需要在显示器上进行重复或者跟踪。但是，当触摸式传感输入装置被安装在与扬声器和麦克风侧相同的便携式无线电话的一侧时，当用户在听扬声器和/或者对麦克风进行说话时，这个触摸式传感输入装置会很容易由用户的头不经意激发。
所以，所需要的是一个新的、用于控制一个便携式通信装置的用户接口，以致于，例如在便携式通信装置被放置在用户的头部时，用户接口中所采用的一个触摸式传感输入装置不会被无意识地激发。
图1是一个便携式通信装置的一个透视图，该便携式通信装置采用了由一个传感器控制的用户接口。
图2是图1中便携式通信装置的电气电路的一个电路框图；
图3是被这个传感器控制的用户接口所采用的一个红外(IR)发送器的一个电气电路原理示意图；和
图4是被这个传感器控制的用户接口所采用的一个IR接收器电路的一个电气电路原理示意图。
一个便携式通信装置，具有对一个输入信号作出响应来控制这个便携式通信装置的操作的一个处理部分，具有带用于产生这个输入信号的一个触摸式传感输入装置的一个用户接口，另外，还具有一个传感器。当这个便携式通信装置被放置在靠近一个用户的位置时，这个传感器就禁止触摸式传感输入装置产生输入信号。通过使用这个结构，当这个用户拿着便携式通信装置靠近他或者她的头部进行通信时，就不会产生无意识的激发。
图1显示了一类便携式通信装置-一个灵巧电话100。这个灵巧电话100由优选是注塑形成的或者由其它合适的材料注成的一个机壳102所定义，具有顶部104和底部105，右边106和左边107，前部108和后部109，这6个面被一起连接成基本上垂直的实形结构。机壳102的厚度一般是由104和105侧和108侧和109侧的宽度决定的，机壳102的宽度一般是有104和105的长度和108侧和109侧的长度决定的，机壳102的厚度和宽度的大小允许一个用户能够用一个手拿灵巧电话100。在所显示的实施方式中，机壳102的宽度和厚度分别是约60毫米和约25毫米。机壳102的长度一般是由106侧到109侧的长度决定，其大小能够确保用户接口部件-其后面放置着一个扬声器202(见图2)的一个扬声器前盖110和其后面放置着一个麦克风204(见图2)的一个麦克风孔112-能够被放置在前面108，并且其距离足够大，以使当灵巧电话100被放置在一个用户的头部附近时，扬声器前盖110被放置在用户的耳朵边，而麦克风孔112被放置在靠近用户嘴的位置。在所显示的实施方式中，机壳102的长度是约150毫米。灵巧电话100进一步包括附加的用户接口部件-一个显示器114和从前面侧108的多个相应孔中穿过来的、用于形成一个键盘116的多个键。显示器114和键盘116位于前面侧108上，并且位于扬声器前盖110和麦克风孔112之间的一个位置。键盘116是带0-9，*，#，功率，功能，发送，结束和菜单导航键的一个传统的无线电话键盘。灵巧电话100还包括位于顶部104上的一个天线124，和连接到后部109的一个可拆卸电池盒126。
灵巧电话100具有一个形式为集成到显示器114中的一个可触摸屏幕128的、一个触摸式传感输入装置。可以通过触摸其外表面来激发触摸屏幕128，触摸屏幕128占据了显示器114的第一层，并且覆盖在显示器114的第二层之上，第一层与第二层一起延伸，显示器114上的第二层是一个液晶显示器(LCD)130。显示器114位于机壳102的内部，以使触摸屏幕128的外部表面能够位于形成在前表面108上、位于扬声器前盖110和键盘116之间的一个大的、基本上垂直的开口132中。使用一个熟知的技术来制造触摸屏幕128，并且触摸屏幕128是由不会阻挡LCD130的显示的、塑料薄膜，玻璃或者其它合适的透明材料制成的。触摸屏幕128和LCD130充满了开口132，以使开口132的大小接近触摸屏幕128的一个最大用户激发区域和LCD130的一个最大视区。在所显示的实施方式中，开口132是2344.75平方毫米(56.5毫米×41.5毫米)或者恰好大于前表面108(150毫米×60毫米＝9000平方毫米)的25％。开口132的面积优选不小于前表面108面积的25％，以能够较好地实现PC或者PDA的功能，如后面将要进一步讨论的。不巧的是，对大的用户激发区域，当用户在进行一个电话呼叫时(即，听扬声器前盖110，并且在对麦克风孔112说话时)，触摸屏幕128很容易由用户的脸引起无意识的激发。
尽管这里所显示的和描述的触摸式传感输入装置是覆盖在一个显示器上、并且与这个显示器一起延伸的一个触摸屏幕，但是应认识到，触摸式传感输入装置可以替代的是仅覆盖一部分显示器的一个触摸屏幕，或者可以是与显示器分开并且远离显示器的、但是仍然位于对一个用户的脸或者头无意识引起的激发敏感的一个位置的一个触摸屏幕或者一个触摸键盘。
为了避免一个用户的脸所产生的无意识的激发，灵巧电话100有一个传感器134，当靠近用户时，该传感器134就进行触发，当传感器134触发时，就关闭触摸式传感输入装置。传感器134最好位于灵巧电话100上、当用户在进行一个电话呼叫时会被用户的头所阻挡的一个位置，但是当用户在经过触摸屏幕128或者键盘116输入信息时传感器134不会被阻挡。在所显示的实施方式中，这个传感器位于机壳102的前表面108上的扬声器前盖110中。在一个电话呼叫期间，一个用户的耳朵一般是靠在扬声器前盖110的上面，来实现声波的密封，以使由图2的扬声器202所输出的可听语音的声音最大。特别地，当这个用户在一个很吵闹的环境中进行一个电话呼叫时，就会出现这样的情形。
传感器134是一个红外(IR)靠近检测器218(见图2)。IR靠近检测器218有一个红外发送部件(见，例如，图3的IR发送器316)和一个IR接收部件(见，例如图4的光电二极管408)。IR发送部件和IR接收部件被相邻地安装在机壳102中，IR靠近检测器218的一个透镜136的后面。透镜136有一个与扬声器前盖110处的、机壳102的前表面108相齐的一个外表面。IR发送部件被放置成发送一个能够垂直通过透镜136的IR光发送束，并且离开机壳102的前表面108。IR接收部件被放置成接收朝向机壳102的前表面、并且通过透镜136的反射IR光。一个隔离墙(没有显示)延伸到透镜136的下面并且位于IR发送和接收部件的中间。这个墙防止IR接收部件直接接收被IR发送部件所发送的IR光。透镜136是一个可见光阻挡滤波器，用于衰减可以被IR接收部件所接收的、可以被传感器134错误地认为是来自IR发送部件的IR光的环境光(例如，太阳光，白炽灯光，和荧光灯光)。在所显示的实施方式中，IR发送部件的IR发送角度被设置成很窄，其平均功率被设置成很低，以使将IR发送束局限在一个敏感区域中，这个敏感区域从透镜136的外表面垂直延伸到比透镜136高约5厘米的一个平面。IR接收部件的接收角度被设置成很大，以使接收角度最大。当一个物体，例如用户的头位于敏感区域中，并且将IR发送光束反射回IR接收部件时，传感器134就进行触发。即使当在透镜136的外表面和用户的头之间没有距离时，IR发送光束在内部被反射到IR接收部件。可以使用两个方法来实现内部反射：(1)通过透镜136，通过依靠其厚度来将反射IR光反射到接收部件，其中隔离墙可以延伸到与透镜136接触；或者(2)通过在隔离墙和透镜136之间有一个间隙，这样就不需要透镜136是厚的。当物体从敏感区域移开时，传感器134就不进行触发。
灵巧电话100具有电气电路结构200，如图2所显示的，被安装在位于图1机壳102中的一个或者多个电路板(没有显示)上。电气电路结构200包括天线124；一个射频(RF)收发器部分206；一个处理部分208；一个用户接口部分210，包括扬声器202，麦克风204，一个键盘电路212，用触摸屏幕128做的显示器114，一个触摸屏幕驱动器电路214，LCD130和一个LCD驱动器电路216；传感器134，包括由一个IR发送器220和一个IR接收器222组成的IR靠近检测器218；和电池盒126，包括一个电池223。扬声器202，麦克风204，RF收发器部分206，键盘电路212，显示器114和传感器134被显示成直接连接到处理部分208。尽管图2中将电池盒126的电池223显示成没有被连接，但是应理解，电池223为电气电路200的操作提供所必需的能量，直到电池223被用完或者电池盒126被从机壳102的后表面109拆走。
处理部分208控制灵巧电话100执行PC或者PDA功能，例如编辑一个记事本，和无线电话功能，例如进行无线电话呼叫或者发送和接收短消息或者寻呼。为了执行这些功能，处理部分208包括一个或者多个互连的处理装置，例如数字信号处理器和微处理器；和可以被处理装置访问的存储器装置，例如闪存，只读存储器和随机访问存储器。PC或者PDA功能一般由显示器114和处理部分208执行。处理部分208经过连接226向LCD驱动器电路216发送信号来驱动LCD130，以使用一个形式，例如一个图象按钮阵列或者一个空白写字板，来显示可见信息，以提示用户进行输入，优选是用户采用手指触摸的形式或者通过用户操作的一个指示笔。触摸屏幕驱动器电路214经过连接229向处理部分208提供一个信号TS_INPUT，以对触摸屏幕128的表面进行的触摸，优选是用户的手指或者通过被一个用户操作的一个笔来进行的触摸作出响应。对来自触摸屏幕驱动器电路214的信号作出响应，处理部分208进一步经过连接226向LCD驱动器电路216发送信号，来驱动LCD130，以使用图形的形式来复制或者跟踪用户对触摸屏幕128表面的触摸，例如通过高亮显示按钮或者显示手写。
无线电话功能一般需要灵巧电话100建立和维持与一个远程装置的通信，例如与一个蜂窝基站的通信。被这个远程装置所发送的RF信号经过天线124在RF收发器部分206处被接收。在处理部分208的控制下，RF收发器部分206通过下转换和解调来将RF信号转换成接收信号。接收信号经过连接224被耦合到处理部分，在处理部分208中，接收信号被解码和被处理以输出给用户。处理部分208经过连接225来驱动扬声器202，以产生从接收信号中恢复出来的语音信息推断而来的可听语音。处理部分208经过连接226向LCD驱动器电路216来驱动LCD130，以显示从接收信号中恢复出来的控制信息推断出来的可视信息。
从灵巧电话110向远程装置发送的RF信号被如下显示。键盘电路212经过连接217向处理部分208提供信号，以对图1中键盘116的激发作出响应。麦克风204经过连接228向处理部分208提供被换能的可听语音信号。触摸屏幕驱动器电路214经过连接229向处理部分208提供信号TS_INPUT，以对激发触摸屏幕128作出响应。处理部分208处理和编码经过连接227-229而接收的信号，并将其变为发送信号。发送信号经过连接224被耦合到RF收发器部分206。在处理部分208的控制下，RF收发器部分206通过调制和放大来将发送信号转换为RF信号，并且将RF信号耦合到天线124进行发射。
在与远程装置建立通信以前，处理部分208使能传感器134。处理部分208经过连接230向IR靠近检测器218的IR发送器220发送一个信号PROX_ENABLE，开始使用上述讨论的方式来发射IR发送束。IR接收器222处于空闲状态来等待IR发送束被反射回来。在接收到反射的IR发送束后，IR接收器222经过连接231向触摸屏幕驱动器电路214发送一个信号TS_DISABLE。对接收到这个信号TS_DISABLE作出响应，触摸屏幕驱动器电路214关闭在连接229上进行的信号TS_INPUT的通信。信号TS_INPUT的通信保持关闭，直到IR接收器222停止接收反射的IR发送束。一旦被停止，IR接收器222就停止在连接231上发送信号TS_DISABLE，这反过来，引起触摸屏幕驱动器电路214使能在连接229上的信号TS_INPUT的通信。
显示器114的相对较大的尺寸和处理部分208的多功能处理需求使灵巧电话100对高电流消耗很敏感。正是这样，灵巧电话100必须对电池功率节省很敏感。IR靠近检测器218是专用于使功率消耗最小的。
详细显示于图3中的IR发送器220由一个振荡器部分300，一个脉冲整形部分302和一个发送部分304组成。振荡器部分300包括一个运算放大器308，电阻R1，R2，R3和R4，一个电容C1和一个电压提供源V1，其互连如图3所显示。运算放大器308的一个提供端口310连接到连接230，以接收信号PROX_ENALBE，在被显示的实施方式中，这个信号具有与使运算放大器308进行工作所需的电源电压相同的电压。电阻R1，R2，R3和R4，一个电容C1和一个电压提供源V1的取值使当运算放大器308工作时，以一个低的频率，例如25赫兹进行振荡，并且产生一个占空比为50％的一个方波信号311。电阻R1，R2，R3和R4，一个电容C1和一个电压提供源V1的合适取值分别是4.7KΩ，4.7KΩ，100KΩ，20KΩ，1μF和3.3V。
该脉冲整形部分302包括如图3所示的互连在一起的一电容C2和一电阻R5以组成一微分器。该电容C2和该电阻R5的取值使得可以将由该振荡部分300输出的连续方波信号转换成一脉冲信号312。该脉冲信号312的特征是窄脉冲和在连续脉冲之间具有一长分隔时段。每一脉冲的持续时间应该充分的短以减少发送电流。连续脉冲间的分隔时段应足够的长以减少平均发送电流，但又不能太长以保证不论用户将该灵巧电话100移至他或她的头部附近的速度如何，都能接收到该反射的IR发送束。该脉冲信号312的合适值为一10μs的持续脉冲和一连续脉冲间为40ms的分隔时段，这规定了一很低的占空比0.025％。该脉冲持续时间能够小到50ns，该时间受到商业能够达到的发送二极管的带宽的限制。该分隔时段能够长到0.5s，与一用户将该灵巧电话100移至他或她的头部附近的速度相比，该时段仍足够快能够保证正确的靠近检测。该电阻R5和该电容C2的合适值分别为1kΩ和0.01μF。
该发送部分304包括相互连接的一双极晶体管(BJT)312，一P-沟道场效应晶体管(FET)314，电阻R6，R7和R8，电容C3和C4，电源电压V2和V3以及一光发送二极管(LED)IR发射器316，如图3所示。该BJT313，该电阻R6和该电源电压V2的装置放大由该脉冲整形部分302输出的窄脉冲的幅度。该脉冲的幅度被放大，以不需增加发送持续时间就能增加发送功率的值。该被放大的窄脉冲被输送给该FET314的栅极。该FET314在该窄脉冲的正斜率时打开，并在该窄脉冲的负斜率时关闭。打开时，该FET314以高峰值功率驱动该IR发射器316。该电容C3和C4为电源滤波电容以提供波动峰值电流。电阻R7和R8为限电流电阻以限制到IR发射器316的电流。当被驱动时，IR发射器316为由该脉冲整形部分302输出的每一窄脉冲发送一IR光脉冲，由此，共同的组成一IR光脉冲的IR发送束。IR发送器220的IR发射器316，比较而言是高功率消耗装置，发送时有大约450mA的峰值电流消耗。通过用脉冲信号312而非连续方波信号311驱动该IR发射器316，该IR发送器220将不会经常发送且发送仅一短持续时间，由此减少了功率消耗。电阻R6，R7和R8，电容C3和C4以及电源电压V2和V3的合适值分别是4.7kΩ，3.3Ω，3.3Ω，4.7μF，27pF，3.3V和3.3V。
该IR接收器222，详细显示于图4，是由一接收部分400，一放大部分402，一滤波部分404和一放大和保持部分406组成。为了减少功率消耗，激活时，该IR接收器222被设计为仅消耗一小电流，如900μA。接收部分400包括如图4所示的相互连接的一光电二极管408，一电阻R9，电容C5和C6以及一电源电压V4。光电二极管408的阴极被连接到由被该电容C5和C6及该电阻R9的装置滤波的、由该电源电压驱动的一很清洁的、低噪声的电源电压。运行在光导电模式下的光电二极管408被连接成如图4所示的反偏压方向。当来自该被发射的IR发送光束的一IR光脉冲入射到光电二极管408时，一大约0.8μA到1.6μA的反向二极管电流在IR光脉冲持续时间内由该光电二极管408的阳极流出，由此，激活该IR接收器222并产生一类似如图3中的脉冲信号312的脉冲接收信号。因为在光电二极管408阳极的噪声能够引起不希望的光电二极管电流，光电二极管408的阳极的物理长度短到约4mm。电阻R9，电容C5和C6及电源电压V4的合适值分别为1000Ω，10μF，2.2μF和3.3V。
该放大部分402包括如图4所示的相互连接的电阻R10，R11，R12，R13和R14，电容C7和C8，一电源电压V6及一n-沟道FET410。当IR接收器222被激活时，该放大部分402作为一跨导放大器来放大含脉冲接收信号的反向光电二极管电流。电阻R10，R11，R12，R13和R14，电容C7和C8及电源电压V6的合适值分别为200kΩ，1MΩ，1MΩ，4.7kΩ，2kΩ，0.1μF，0.1μF和3.3V。
该滤波部分404包括如图4所示相互连接的电容C9和C10和一电阻R15。该滤波部分404为一二阶高通滤波器，过滤出来自周围环境的背景干扰光的低频率部分。这是通过设定该高通滤波器的截止频率足够地高，以减少低频率的干扰来实现的。截止频率是根据一IR发送元件能够发送的最窄的脉冲持续时间来选择的。在所显示的本实施方式中，高通滤波器的截止频率被设定在2kHz。电容C9和C10及电阻R15的合适值分别为0.01μF，4700pF和10kΩ。
该放大和保持部分406包括如图4所示相互连接的电阻R16，R17，R18，R19和R20，电容C11，电源电压V7，V8和V9，BJTs412和414及二极管416。电阻R16，R17，R18，电源电压V7和V8及BJT412的结构将被滤波的脉冲接收信号放大到逻辑水平。电源电压V9，BJT414，电阻R19作为一电压跟随器电路，以用来缓冲由电容C11和电阻R20组成的锁存器电路。二极管416是一峰值检测器并阻止来自电容C11的反向电流。由电容C11和电阻R20组成的该锁存器电路在一合适的时间恒定值内锁存信号TS-DISABLE，如200ms。在该合适时间恒定值内，信号TS-DISABLE被输出到连接231。电阻R16，R17，R18，R19和R20，电容C11及电源电压V7，V8和V9的合适值分别为100kΩ，100kΩ，10kΩ，47kΩ，3.9MΩ，0.1μF，3.3V，3.3V和3.3V。
因而，可以看出一传感器控制的用户接口简化并改善了一移动通信装置的操作。虽然已经显示和描述了特定的实施方式，应认识到可以进行修改。例如，机壳102也能使用一可移动的机壳部分(如，一折叠键，一键盘盖，一滑动耳机)或者替代的有一可折叠的蛤壳式外形方向设计，在这个设计中，扬声器前盖110，显示器114，键盘116，麦克风孔112和传感器134被设在一前表面上，它们进行延伸并被布置在两个可旋转并连接的部分上。尽管该灵巧电话100显示为使用该键盘116，一熟悉本领域中的人将意识到触摸屏128和LCD130能够被处理部分208配置成以实现该键盘116的功能，由此允许从该灵巧电话100中除去键盘116和键盘电路212。尽管在此显示和说明了该IR靠近检测器218，传感器134能够替代的使用电容性的，感应的，超声波的，RF或者其他传感技术来控制该用户接口。除灵巧电话100外的其他装置能够使用该传感器控制用户接口而获益。如装置包括但不限于蜂窝电话，卫星电话，PDAs，无绳电话，双向通信，寻呼机等这类装置。因此附加的权利要求书包括所有在此本发明的精神和领域内的改变和修改。
Claims (10)
1、一个便携式通信装置，包括：
一个处理部分，用于对一个输入信号作出响应，控制便携式通信装置的操作；
一个用户接口，包括连接到所述处理部分的一个触摸式传感输入装置，，所述触摸式传感输入装置可以被激发来产生输入信号；和
一个连接到用户接口的传感器，当便携式通信装置被放置到靠近一个用户的位置时，传感器可以关闭到处理部分的输入信号的通信，由此，防止无意识引起的对触摸式传感输入装置的激发。
2、如权利要求1的一个便携式通信装置，
进一步包括一个机壳，这个机壳具有一第一侧面，所述第一侧面具有一个开口，所述开口的面积不小于第一侧面面积的约25％；和
其中，用户接口进一步包括一个显示器和一个键盘，显示器被放置在开口中，并且键盘被形成在所述第一侧面中。
3、如权利要求1的一个便携式通信装置，其中
所述传感器是一个包括一个IR发送器和一个IR接收器的红外(IR)靠近检测器，所述IR发送器连接到所述处理部分，IR发送器在接收来自所述处理部分的一个使能信号时，发送一个IR发送束，所述IR接收器在接收到IR发送束的反射后，就输出一个非使能信号，和
所述用户接口进一步包括所述触摸式传感输入装置的一个驱动器电路，所述驱动器电路连接到所述IR接收器，所述触摸式传感输入装置和所述处理部分，所述驱动器电路对所述触摸式传感输入装置的激活作出响应而与所述处理部分进行输入信号的通信，所述驱动器电路在接收到非使能信号后就中断输入信号的通信。
4、如权利要求1的一个便携式通信装置，其中所述传感器是包括一个IR发送器和一个IR接收器的一个红外(IR)靠近检测器，所述IR发送器用于发送由IR脉冲组成的一个IR发送束。
5、如权利要求4的一个便携式通信装置，其中所述IR发送器包括一个振荡器部分和一个脉冲整形部分，所述振荡器部分用于产生具有一第一占空比的一个连续波信号，所述脉冲整形部分用于将所述连续波信号转换为具有一第二占空比的一个脉冲信号，其中第二占空比小于第一占空比。
6、如权利要求5的一个便携式通信装置，其中所述脉冲信号包括脉冲和连续脉冲之间的一个分隔时段，每一个脉冲具有一第一持续时间，分隔时段不大于0.5秒，第一持续时间不小于50ns。
7、如权利要求5的一个便携式通信装置，其中所述IR发送器进一步包括一个发送部分，所述发送部分用于放大所述脉冲信号中脉冲的幅度。
8、如权利要求4的一个便携式通信装置，其中所述IR接收器进一步包括一个高通滤波器。
9、如权利要求1的一个便携式通信装置，其中所述便携式通信装置是一个灵巧电话。
10、一个灵巧电话，包括：
一个机壳，具有一第一侧面和第一和第二端；
一个扬声器前盖，形成于第一侧面中靠近第一端的位置；
一个麦克风孔，形成于第一侧面中靠近第二端的位置；
一个基本上成矩形的开口，形成于第一侧面中、扬声器前盖和所述麦克风孔之间的一个位置，所述基本上成矩形的开口的面积不小于第一侧面面积的约25％；
一个显示器，位于所述基本上成矩形的开口中，所述显示器具有第一和第二层，所述第一层包括一个触摸屏幕，所述第二层包括一个液晶显示器(LCD)，所述第一层基本上是透明的，以能够看到LCD；
一个无线频率(RF)收发器，位于所述机壳中；
一个处理部分，位于所述机壳中，并且连接到所述RF收发器部分，所述处理部分对一个输入信号作出响应，来控制所述灵巧电话执行一个无线电话功能和一个个人计算机或者个人数字助理功能中的一个功能；
一个触摸屏幕驱动器电路，位于所述机壳中，并且连接到所述处理部分，所述触摸屏幕驱动器电路对触摸屏幕的激发作出响应，与处理部分进行输入信号的通信；和
一个传感器，位于所述第一侧面，所述传感器连接到所述处理部分和所述触摸屏幕驱动器电路，当所述灵巧电话位于靠近一个用户的一个位置时，所述传感器关闭所述触摸屏幕驱动器电路，停止与所述处理部分进行输入信号的通信。
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| Publication number | Publication date |
|---|---|
| GB2346500B (en) | 2001-04-04 |
| US6246862B1 (en) | 2001-06-12 |
| KR20000057873A (ko) | 2000-09-25 |
| GB2346500A (en) | 2000-08-09 |
| GB0001768D0 (en) | 2000-03-15 |
| KR100371661B1 (ko) | 2003-02-11 |
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