CN1926604A - 具有附加的功能性的可移动触摸板 - Google Patents

具有附加的功能性的可移动触摸板 Download PDF

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CN1926604A
CN1926604A CNA200480022821XA CN200480022821A CN1926604A CN 1926604 A CN1926604 A CN 1926604A CN A200480022821X A CNA200480022821X A CN A200480022821XA CN 200480022821 A CN200480022821 A CN 200480022821A CN 1926604 A CN1926604 A CN 1926604A
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touch pad
input equipment
equipment
framework
button
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S·P·扎德斯基
S·B·林奇
B·W·德纳
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Apple Inc
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Abstract

公开了一种输入设备。该输入设备包括能够检测其附近的对象从而产生第一控制信号的可移动触摸板。该输入设备还包括能够检测可移动触摸板的移动从而产生一个或多个不同的第二控制信号的移动指示器。所述控制信号用于在操作上连接到该输入设备的电子设备内执行活动。

Description

具有附加的功能性的可移动触摸板
技术领域
一般来说，本发明涉及触摸板。更具体地说，本发明涉及能够移动以便增加触摸板的功能性的触摸板。
背景技术
当前存在用于在消费类电子设备中执行操作的多种类型的输入设备。所述操作一般对应于在显示屏上移动光标并做出选择。作为例子，输入设备可以包括按钮、开关、键盘、鼠标、跟踪球、触摸板、游戏杆、触摸屏等。这些设备中的每一种具有在设计消费类电子设备时需要加以考虑的优点和缺点。在手持计算设备中，一般从按钮和开关中选择输入设备。按钮和开关通常本质上为机械的，并且对光标(或其他选择器)移动并进行选择提供有限的控制。例如，它们一般专用于在特定方向上移动光标(例如，箭头键)或进行特定选择(例如，回车、删除、计数等)。在手持个人数字助理(PDA)的情况下，输入设备往往采用触敏显示屏。当使用触摸屏时，用户通过使用输入笔或手指在屏幕上直接点取对象而在显示屏上进行选择。
在便携计算设备、诸如膝上计算机中，输入设备通常是触摸板。采用触摸板，输入指针(即，光标)的移动对应于沿触摸板的表面移动手指时用户手指(或输入笔)的相对移动。当在触摸板的表面上检测到一个或多个敲击时，触摸板也可以在显示屏上进行选择。在某些情况下，可以敲击触摸板的任意部分，在其他情况下可以敲击触摸板的专用部分。在固定设备、诸如台式计算机中，一般从鼠标和跟踪球中选择输入设备。使用鼠标，输入指针的移动对应于用户沿表面移动鼠标时鼠标的相对移动。使用跟踪球，输入指针的移动对应于用户旋转壳体内的球时该球的相对移动。鼠标和跟踪球一般包括一个或多个按钮用于在显示屏上进行选择。
除了允许输入指针移动和关于显示屏上呈现的GUI的选择之外，输入设备还允许用户在水平或垂直方向内在显示屏上进行屏幕移动。例如，鼠标可以包括滚动轮，允许用户简单地向前或向后滚动滚动轮以执行屏幕移动操作。此外，触摸板可以提供专用活动区域，当用户在该活动区域上在x和y方向上线性地移动他或她的手指时，该专用活动区域实现屏幕移动。这两种设备还通过作为GUI一部分的水平和垂直滚动条实现滚动。使用这种技术，通过将输入指针定位到所希望的滚动条上、选择所希望的滚动条并且通过在用于垂直滚动的y方向内(向前和向后)或在用于水平滚动的x方向内(左和右)移动鼠标或手指来移动滚动条从而实现屏幕移动。
对于触摸板、鼠标和跟踪球，使用笛卡尔坐标系分别监视手指、鼠标和球移动时的位置。笛卡尔坐标系一般被定义为二维坐标系(x，y)，其中点的坐标(例如，手指、鼠标或球的位置)是其到两个相交的、通常垂直的直线的距离，沿平行于另一坐标轴的直线测量到一个坐标轴的距离。例如，可以监视鼠标、球和手指的x、y位置。然后该x、y位置用于在显示屏上相应地定位和移动输入指针。
为了更详细地阐述，触摸板一般包括一个或多个传感器，用于检测手指的接近。作为例子，该传感器可以基于电阻传感、表面声波传感、压力传感、光学传感、电容传感等。传感器一般分散在触摸板附近，每个传感器表示x、y位置。在大多数情况下，传感器布置在列和行的网格内。因此当手指在触摸板内的传感器网格上移动时，产生控制指针设备在显示屏上的x、y移动的不同的x和y位置信号。为了简短起见，将以对电容传感技术的讨论进行其余的讨论。然而应当注意，其他技术具有类似的特性。
电容传感触摸板一般包含若干层材料。例如，触摸板可以包括防护罩、一个或多个电极层和电路板。防护罩通常覆盖着一个或多个电极层()，并且一个或多个电极层()一般布置在电路板的前侧。如通常所知的，防护罩是由用户触摸以实现光标在显示屏上的移动的触摸板部分。在另一方面，一个或多个电极层()用于解释当用户手指静止在防护罩上或在防护罩上移动时用户手指的x、y位置。一个或多个电极层()通常包含多个电极，这些电极位于列和行中从而形成网格阵列。这些列和行一般基于笛卡尔坐标系，并且因此所述的列和行对应于x和y方向。
触摸板还包括用于检测与电极有关的信号的传感电子装置。例如，该传感电子装置可用于检测手指在网格上移动时每个电极的电容的变化。该传感电子装置一般位于电路板的后侧。作为例子，传感电子装置可以包括配置为测量每个电极的电容的数量并且基于每个电极的电容计算手指移动位置的专用集成电路(ASIC)。该ASIC还可配置为向计算设备报告该信息。
参考图1，将更详细地描述触摸板10。触摸板通常是一个小的矩形区域，它包括防护罩层12和布置在防护罩层12之下的多个电极14。为了便于讨论，去除了防护罩层12的一部分以便示出电极14。每个电极14表示不同的x、y位置。在一种配置中，当手指16接近电极网格14时，在手指16和接近手指16的电极14之间形成小电容。电路板/传感电子装置测量电容并产生对应于激活的电极14的x、y输入信号18，并将信号发送到具有显示屏22的主机设备20。x、y输入信号18用于控制光标24在显示屏22上的移动。如图所示，输入指针在与检测到的x、y手指移动相同的x、y方向上移动。
发明内容
一般来说，本发明涉及能够检测在其附近的对象的触摸板。更具体地说，本发明涉及能够移动以便增加该触摸板的功能性的触摸板。例如，该触摸板可被压下，从而提供附加的按钮功能性。
本发明涉及输入设备的一个实施例。该输入设备包括可移动触摸板，该触摸板配置为当移动该可移动触摸板时产生第一控制信号，并且当对象定位在该可移动触摸板上时产生第二控制信号。
本发明涉及输入设备的另一个实施例。该输入设备包括框架。该输入设备还包括可移动地被限制到该框架的刚性触摸板。该刚性触摸板配置为当对象定位在该刚性触摸板上时产生追踪信号。该输入设备进一步包括一个或多个包含在该框架内的移动指示器。移动指示器配置为当刚性触摸板相对于框架移动时产生一个或多个按钮信号。
本发明涉及输入设备的另一个实施例。该输入设备包括触摸板组件和壳体组件。触摸板组件包括具有第一侧和第二侧的电路板、位于电路板的第一侧上的电极层、位于电极层上的装饰板、位于电路板的第二侧上的一个或多个开关和位于电路板的第二侧上的加强板。壳体组件包括基板、框架和一个或多个固定板，该基板、框架和一个或多个固定板协作以便可移动地将触摸组件的至少一部分约束在由基板、框架和一个或多个固定板限定的空间内。
本发明涉及计算系统的另一个实施例。该计算机系统包括能够接收、处理和输出数据的计算设备。该计算机系统还包括配置为向该计算设备发送数据以便在计算设备中执行活动的输入设备。该输入设备包括配置为产生追踪信号的可压下触摸板，以及配置为当压下触摸板时产生一个或多个按钮信号的一个或多个移动指示器。
附图说明
以示例的方式而不是以限制的方式说明本发明，附图中相同的参考号指相同的元件，其中：
图1是触摸板和显示器的简化示意图。
图2是根据本发明的一个实施例的输入设备的透视图。
图3A和3B是根据本发明的一个实施例、具有按钮触摸板的输入设备的简化侧视图。
图4是根据本发明的一个实施例、连接到计算设备的输入设备的简化方框图。
图5是根据本发明的一个实施例的输入设备的简化透视图。
图6是根据本发明的一个实施例的多个按钮区域触摸板的侧面正视图。
图7A-7D示出根据本发明的一个实施例、使用中的图6的触摸板。
图8是根据本发明的一个实施例的输入设备的透视图。
图9是根据本发明的一个实施例的输入设备的分解透视图。
图10是根据本发明的一个实施例的输入设备的横截面部分的侧视图。
图11是根据本发明的一个实施例的输入设备的横截面部分的侧面图。
图12是根据本发明的一个实施例的在其背部具有开关的触摸板的透视图。
图13是根据本发明的一个实施例的媒体播放器的透视图。
图14是根据本发明的一个实施例的膝上计算机的透视图。
图15是根据本发明的一个实施例、具有连接到其上的外围输入设备的台式计算机的透视图。
图16是根据本发明的一个实施例、使用输入设备的远程控制的透视图。
图17是根据本发明的一个实施例的媒体播放器和输入设备组件的分解透视图。
图18是根据本发明的一个实施例的包含输入设备的媒体播放器的底部的侧视图。
图19是根据本发明的一个实施例的远程控制的简化方框图。
图20A和20B是根据本发明的另一个实施例的输入设备的横截面的侧视图。
具体实施方式
现在将参考附图中示出的多个优选实施例详细描述本发明。在下面的描述中，阐述了许多特定细节以便提供对本发明的彻底理解。然而，对本领域的技术人员来说显而易见的是，没有某些或全部这些特定细节也可以实现本发明。在其他情况，为了避免不必要地使本发明的阐述变得不清晰，未对众所周知的部件和方法作详细描述。
图2是根据本发明的一个实施例的输入设备30的简化透视图。输入设备30一般配置为向电子设备发送信息或数据以便在显示屏上执行活动(例如，通过图形用户接口)。例如，移动输入指针、进行选择、提供指令等。输入设备可以通过有线(例如，缆线/连接器)或无线连接(例如，IR、蓝牙等)与电子设备交互。输入设备30可以是独立单元或它可以集成在电子设备中。当是独立单元时，输入设备通常有自己的外壳。当集成在电子设备中时，输入设备通常使用电子设备的外壳。在两种情况下，输入设备可以在结构上通过例如螺钉、卡锁、固定器、粘合剂等连接到外壳。在一些情况下，输入设备可以例如通过对接站可移动地连接到电子设备。输入装置所连接的电子设备可以对应于任何消费类电子产品。作为例子，电子设备可以对应于诸如台式计算机、膝上计算机或PDA的计算机、诸如音乐播放器的媒体播放器、诸如蜂窝电话的通信设备、诸如键盘的其他输入设备等。
如图2中所示，输入设备30包括框架32(或支撑结构)和触摸板34。框架32提供用于支撑输入设备的组件的结构。外壳形式的框架32还可以封装或包含输入设备的组件。包括触摸板34的所述组件可以对应于用于操作输入设备30的电子、光学和/或机械组件。
触摸板34提供直观的接口，该接口配置为提供一个或多个控制功能，用于控制与附加有触摸板34的电子设备相关的各种应用。作为例子，触摸启动控制功能可用于在显示屏上移动对象或执行动作，或进行选择或发出与操作该电子设备有关的命令。为了实现该触摸启动控制功能，触摸板34可设置为从移动过(例如，线性地、径向地、旋转地等)触摸板34表面的手指(或对象))、从停留在触摸板34的特定位置上的手指和/或通过在触摸板34的特定位置上敲击的手指来接收输入。应当理解，触摸板34提供了容易的单手操作，即允许用户以一个或多个手指与电子设备交互。
触摸板34可以被极大地改变。例如，触摸板34可以是基于笛卡尔坐标系的传统触摸板，或者触摸板34可以是基于极坐标系的触摸板。基于极坐标的触摸板的一个例子可见于提交于2002年7月1日名为“TOUCH PAD FORHANDHELD DEVICE”的第10/188182号专利申请，将其结合在此作为参考。此外，触摸板34可用于相对和/或绝对模式。在绝对模式中，触摸板34报告其被触摸的绝对坐标。例如在笛卡尔坐标系情况下的x、y，或极坐标系情况下的(r，θ)。在相对模式中，触摸板34报告改变的方向和/或距离。例如，左/右、上/下等。在多数情况下，由触摸板34产生的信号在显示屏上引导与手指在触摸板34表面上移动时手指的方向相同方向的移动。
触摸板34的形状可被极大地改变。例如，触摸板34可以是圆形、椭圆形、正方形、矩形、三角形等。一般地，触摸板34的外周长限定触摸板34的工作边界。在示出的实施例中，触摸板是圆形的。圆形的触摸板允许用户以自由方式连续旋转手指，即手指可旋转360度而不用停止。此外，用户可以切线地从所有侧旋转他或她的手指，从而赋予其手指位置的更大范围。在执行滚动功能时，这两种特性可能有所帮助。此外，触摸板34的大小一般对应于允许用户容易地操作它们的大小(例如，指尖的大小或更大)。
一般采用刚性平台形式的触摸板34包括用于接收手指(或对象)对触摸板的操作的可触摸外表面36。可触摸外表面36之下是传感器装置，该传感器装置对在其上的手指的压力和运动之类的事务敏感，图2中未示出。该传感器装置通常包括多个传感器，它们配置为当手指位于其上时、在其上敲击时或在它们上移动时激活。在最简单的情况下，每次当手指定位于传感器上时产生电子信号。给定时间范围内信号数目可以指示手指在触摸板34上的位置、方向、速度和加速度，即用户越多地移动他或她的手指则信号就越多。在大多数情况下，通过电子接口监视所述信号，该电子接口将所述信号的数目、组合和频率转换为位置、方向、速度和加速度信息。该电子设备然后可以使用该信息在显示屏上执行所希望的控制功能。该传感器装置可以被极大地改变。作为例子，传感器可以基于电阻性传感、表面声波传感、压力传感(例如，张力测量)、光学传感、电容性传感等。
在说明的实施例中，触摸板34基于电容性传感。如通常众所周知的，基于电容的触摸板被设置为检测用户在触摸板上移动对象(例如手指)时电容的改变。在大多数情况下，电容性触摸板包括防护罩、一个或多个电极层、电路板和包括专用集成电路(ASIC)的相关电子装置()。防护罩放置在电极之上；电极安装在电路板的顶面上；ASIC安装在电路板的底面上。防护罩用于保护下层，并且提供允许手指在其上滑动的表面。该表面一般是平滑的，从而手指在移动时不会附着在上面。该防护罩还提供手指和电极层之间的绝缘层。电极层包括多个在空间上不同的电极。可以使用任何适合数目的电极。在大多数情况下，可期望增加电极数目从而提供更高分辨率，即，更多信息可用于诸如加速度的主题。
电容性传感根据电容原理工作。如应当理解的，当两个导电部件彼此接近而没有实际接触时，它们的电场相互作用形成电容。在上面讨论的配置中，第一导电部件是一个或多个电极，第二导电部件是用户的手指。因此，当手指接近触摸板时，在手指和非常接近手指的电极之间形成微小的电容。由位于电路板背侧的ASIC测量每个电极的电容。通过检测每个电极的电容的变化，ASIC可以确定手指在触摸板上移动时的位置、方向、速度和加速度。该ASIC还采用电子设备可以使用的形式报告这种信息。
根据一个实施例，触摸板34可相对于框架32移动，从而启动另一组信号(而不只是追踪信号)。作为例子，刚性平台形式的触摸板34可以相对于框架32旋转、转动、滑动、平移、弯曲等。触摸板34可连接到框架32和/或它可被框架32可移动地限制。作为例子，触摸板34可以通过轴、关节接头、滑动件接头、球形和插座接头、弯曲接头、磁铁、垫和/或类似物连接到框架32。触摸板34还可以在该框架(例如，万向架(gimbal))的空间内浮动。应当注意，输入设备30可以附加地包括诸如枢轴/转换接头、枢轴/弯曲接头、枢轴/球形和插座接头、平移/弯曲接头等的接合组头，以增加运动范围(例如，增加自由度)。当移动时，触摸板34配置为激活产生一个或多个信号的电路。该电路一般包括一个或多个移动指示器，诸如开关、传感器、编码器等。可对其修改以包括触摸板的旋转平台的例子可见于提交于2002年2月7日的题目为“MOUSEHAVING A ROTARY DIAL”的第10/072765号专利申请，将其结合在此作为参考。
在说明的实施例中，触摸板34采用执行一个或多个机械点击动作的可压下按钮的形式。即，部分或全部触摸板34起单个或多个按钮的作用，从而通过在触摸板34上按压而不是敲击触摸板或使用单独的按钮来实现一个或多个附加的按钮功能。如图3A和3B中所示，根据本发明的一个实施例，当从手指38、手掌、手或其他对象向触摸板34施加实际力时，触摸板34能够在竖立位置(upright position)(图3A)和压下位置(图3B)之间移动。例如通过弹性元件通常将触摸板34弹力偏置在竖立位置。当压在触摸板34上的对象克服弹力偏置时，触摸板34移到压下位置。
如图3A所示，在竖立位置，当对象、例如用户的手指在X、Y平面内在触摸板的顶面上移动时，触摸板34产生追踪信号。如图3B所示，在压下位置(Z方向)，触摸板34产生一个或多个按钮信号。该按钮信号可用于各种功能性，包括但不限于进行选择或发出与电子设备的操作相关联的命令。作为例子，在音乐播放器的情况下，按钮功能可以与打开菜单、播放歌曲、歌曲快进、搜索菜单等相关联。在某些情况下，输入设备30可以设置为在同一时间既提供追踪信号又提供按钮信号，即，在x、y方向内平面移动时，同时在z方向压下触摸板34。在其他情况下，输入设备30可以设置为当压下触摸板34时仅提供按钮信号，并且当触摸板34处于竖立时提供追踪信号。后面的情况一般对应于图3A和3B中示出的实施例。
为了说明，触摸板34配置为当触摸板34移到压下位置时，激活一个或多个能够产生按钮信号的移动指示器。移动指示器通常位于框架32内，并且可以连接到触摸板34和/或框架32。该移动指示器可以是开关和传感器的任意组合。开关一般配置为提供脉冲或二进制数据诸如激活(开)或失活(关)。作为例子，触摸板34的底侧部分可配置为当用户在触摸板34上按压时接触或接合(并且从而激活)一个开关。在另一方面，传感器一般配置为提供连续或模拟信号。作为例子，传感器可配置为当用户在触摸板34上按压时测量触摸板34相对于框架的位置或倾斜量。可以使用任合适合的机械、电子和/或光学开关或传感器。例如，可以使用轻触开关、力敏感电阻器、压力传感器、接近传感器等。在某些情况下，由包括弹簧作用的移动指示器提供将触摸板34置于竖立位置的弹性偏置。
图4是根据本发明一个实施例的计算系统的简化方框图。该计算系统通常包括操作上连接到计算设备42的输入设备40。作为例子，输入设备40一般可对应于图2、3A和3B中示出的输入设备30，并且计算设备42可对应于计算机、PDA、媒体播放器等。如图所示，输入设备40包括可压下触摸板44和一个或多个移动指示器46。触摸板44配置为产生追踪信号，并且移动指示器46配置为在压下触摸板时产生按钮信号。虽然触摸板44可被极大地改变，但在本实施例中，触摸板44包括电容传感器48和用于从传感器48获取位置信号并将该信号提供给计算设备42的控制系统50。控制系统50可以包括专用集成电路(ASIC)，该电路被配置为监视来自传感器48的信号以计算所监视信号的角位置、方向、速度和加速度，并且将该信息报告计算设备42的处理器。移动指示器46也可被极大地改变。然而在本实施例中，移动指示器46采用开关的形式，当压下触摸板44时，其产生按钮信号。开关46可以对应于机械、电子或光学类型的开关。在一个特定实现中，开关46是机械类型的开关，它包括可由触摸板44按压以产生按钮信号的突出的激励器52。作为例子，开关可以是轻触开关。
触摸板44和开关46两者通过通信接口54在操作上连接到计算设备42。该通信接口提供输入设备和电子设备之间的直接或间接连接的连接点。通信接口54可以是有线(电线、缆线、连接器)或无线(例如，发射器/接收器)接口。
参考计算设备42，计算设备42通常包括配置为执行指令并且执行与计算设备42相关的操作的处理器54(例如，CPU或微处理器)。例如，使用例如从存储器检索的指令，处理器可以控制计算设备42的组件之间的输入和输出数据的接收和操作。在大多数情况下，处理器54在操作系统或其他软件的控制下执行指令。处理器54可以是单芯片处理器或可以采用多个组件实现。
计算设备42还包括在操作上连接到处理器54的输入/输出(I/O)控制器56。(I/O)控制器56可以与处理器54集成在一起，或如图所示它可以是单独的组件。I/O控制器56通常配置为控制与可以连接到计算设备42的一个或多个I/O设备(例如输入设备40)的交互。I/O控制器56通常通过在计算设备42和希望与计算设备42通信的I/O设备之间交换数据来操作。
计算设备42还包括在操作上连接到处理器54的显示控制器58。显示控制器58可以与处理器54集成在一起，或如图所示它可以是单独的组件。显示控制器58配置为处理显示命令以便在显示屏60上产生文字和图像。作为例子，显示屏60可以是单色显示器、彩色图形适配器(CGA)显示器、增强型图形适配器(EGA)显示器、可变图形阵列(VGA)显示器、高级VGA显示器、液晶显示器(例如，有源矩阵、无源矩阵等)、阴极射线管(CRT))、等离子显示器等。在说明的实施例中，显示设备对应于液晶显示器(LCD)。
在大多数情况下，处理器54与操作系统一起操作以执行计算机代码并产生和使用数据。计算机代码和数据可以驻留在在操作上连接到处理器54的程序存储区域62内。程序存储区域62通常提供保存由计算设备42使用的数据的位置。作为例子，该程序存储区域可以包括只读存储器(ROM))、随机访问存储器(RAM))、硬盘驱动器等。计算机代码和数据还可以驻留在可移动程序介质上，并在需要时装入或安装在计算设备上。在一个实施例中，程序存储区域62配置为存储信息，该信息用于控制由输入设备产生的追踪和按钮信号如何由计算设备42使用。
图5是根据本发明一个实施例的输入设备70的简化透视图。与图3的实施例中示出的输入设备类似，该输入设备70将一个或多个按钮()的功能性直接结合到触摸板72内，即，该触摸板起按钮的作用。然而在这个实施例中，触摸板72被划分为多个独立的和在空间上不同的按钮区域74。按钮区域74表示可由用户移动以实现不同按钮功能的触摸板72的区域。虚线表示构成各个按钮区域的触摸板72的区域。可以使用任何数目的按钮区域。例如，两个或两个以上、四个、八个等。在所说明的实施例中，触摸板72包括四个按钮区域74A-74D。
如应当理解的，通过在每个按钮区域上按压所产生的按钮功能可包括选择屏幕上的项、打开文件或文档、执行指令、启动程序、观看菜单等。按钮功能还可以包括使在该电子系统内航行(navigate)更容易的功能，例如，缩放、滚动、打开不同的菜单、使输入指针回到原位、执行诸如回车、删除、插入、上翻页/下翻页的与键盘有关的活动等。在音乐播放器的情况下，所述按钮区域中的一个可用于访问显示屏上的菜单，第二个按钮区域可用于在歌曲列表中向前搜索或对当前播放的歌曲进行快进，第三个按钮区域可用于在歌曲列表中向后搜索或对当前播放的歌曲进行快退，并且第四个按钮区域用于暂停或停止正播放的歌曲。
为了说明，触摸板72能够相对框架76移动，从而为每个按钮区域74A-D产生点击动作。可以由单个组件形成框架76，或者框架76可以是组装组件的组合。点击动作通常用于激活包含在框架76内的一个或多个移动指示器。即，从第一位置(例如，竖立)到第二位置(例如，压下)的特定按钮区域移动导致激活移动指示器。移动指示器配置为在点击动作期间感知按钮区域的移动，并且将对应于该移动的信号发送到电子设备。作为例子，移动指示器可以是开关、传感器等。
移动指示器的布置可被极大地改变。在一个实施例中，输入设备可以包括用于每个按钮区域74的移动指示器。即，可以有对应于每个按钮区域74的移动指示器。例如，如果有两个按钮区域，则有两个移动指示器。在另一实施例中，可采用模拟每个按钮区域74的移动指示器的存在的方式布置移动指示器。例如，可以使用两个移动指示器形成三个按钮区域。在另一实施例中，移动指示器可配置为形成更大或更小的按钮区域。举例来说，这可通过仔细定位移动指示器或通过为每个按钮区域使用多于一个移动指示器来实现。应当注意，上面的实施例不是限制，并且移动指示器的布置可根据各个设备的特定需要改变。
可以通过各种旋转、转动、平移、弯曲等提供每个按钮区域74的移动。在一个实施例中，触摸板72配置为相对于框架76以万向架固定以便产生每个按钮区域的点击动作。通过万向架，一般意味着触摸板72能够相对于框架76空间浮动而仍然被约束在其上。万向架可以允许触摸板72以单个或多个自由度(DOF)相对于壳体移动。例如，在x、y和/或z方向的移动和/或绕着x、y和/或z轴(θx，θy，θz)旋转。
参考图6，将描述图5的多按钮区域触摸板72的特定实现。在该实施例中，输入设备70包括用于图5中示出的各个按钮区域74A-D的移动指示器78。即，在每个按钮区域74A-D之下布置有移动指示器78。此外，触摸板72配置为相对于框架76以万向架固定以便提供每个按钮区域74A-D的点击动作。该万向架一般通过可移动地将触摸板72约束在框架76内实现。
如图6中所示，触摸板72包括多个层，包括刚性平台80和用于追踪手指移动的触敏表面82。在一个实施例中，触摸板72基于电容传感，并且因此刚性平台80包括电路板84，触敏表面82包括电极层86和防护层88。电极层86布置在电路板84的顶面上，防护层88布置在电极层86之上。虽然图6中未示出，刚性平台80还可以包括加强板以便加强电路板84。
移动指示器78可被极大地改变，然而，在该实施例中，它们采用机械开关的形式。机械开关78通常置于平台80和框架76之间。机械开关78可以附着于框架76或平台80。在所说明的实施例中，机械开关78附着于平台80的电路板84的背侧，从而形成集成单元。它们通常附着在将它们置于适当的按钮区域74A-D之下的位置。如图所示，机械开关78包括激励器90，它是弹性偏置的，使得它们远离电路板84伸出。这样，机械开关78起在框架76内将触摸板72支撑在其竖立位置的支腿的作用(即，激励器90支在框架76上)。作为例子，该机械开关可以对应于轻触开关，并且更具体地，封闭的SMT圆顶开关(为SMT封装的圆顶开关)。
一起移动，触摸板72的集成单元和开关78被限制在框架76提供的空间92内。集成单元72/78能够在空间92内移动，同时通过框架76的壁防止其整个移出空间92。空间92的形状一般符合集成单元72/78的形状。这样，通过框架76的侧壁94沿X和Y轴、并且通过框架76的顶壁96和底壁100沿Z轴和围绕X和Y轴旋转基本上限制该单元。在侧壁和平台之间可以提供小空隙以允许触摸板移动到其四个位置而没有妨碍(例如，微小的动作量)。在某些情况下，平台80可以包括沿X和Y轴延伸的小突起，从而防止围绕Z轴旋转。此外，顶壁96包括开口102，用于提供到触摸板72的触敏表面82的通路。由机械开关78提供的弹力将触摸板72置于与框架76的顶壁96配对接合(即，竖立位置)，并且该万向架大体上消除了其间的间隙和缝隙。
参考图7A-7D，根据一个实施例，用户简单地在所希望的按钮区域74A-D的位置内在触摸板72的顶面上按压，以便激活布置在所希望的按钮区域74A-D之下的开关78。当被激活时，开关78产生可由电子设备使用的按钮信号。在所有这些图中，手指提供的力克服开关78的弹力直到激活开关78。虽然平台80基本上在框架76的空间内浮动，但当用户在触摸板72的一侧按压时，相对的一侧接触顶壁96，从而引起触摸板72绕着接触点转动而不会激活相对的开关78。实质上，触摸板72绕着四个不同的轴转动，虽然这些轴中的两个轴基本上彼此平行。如图7A所示，当用户选择按钮区域74A时触摸板72绕着接触点104A转动，从而引起机械开关78A被激活。如图7B所示，当用户选择按钮区域74D时触摸板72绕着接触点104D转动，从而引起机械开关78D被激活。如图7C所示，当用户选择按钮区域74C时触摸板72绕着接触点104C转动，从而引起机械开关78C被激活。如图7D所示，当用户选择按钮区域74B时触摸板72绕着接触点104B转动，从而引起机械开关78B被激活。
图8-11是根据本发明一个实施例的输入设备120的示意图。图8是装配好的输入设备120的透视图，而图9是没有组装的输入设备120的分解透视图。图10和11是输入设备120的装配状态下的横截面处的侧面正视图(分别沿着线10-10’和11-11’取得)。作为例子，输入设备120一般可以对应于图5-7中描述的输入设备。然而，与图5-7中的输入设备不同，这些图中示出的输入设备120包括布置在具有四个按钮区域126A-D的触摸板124的中央的单独的机械按钮122。该单独的机械按钮122进一步增加了输入设备120的按钮功能性(例如，从四个到五个)。
参考图9-11，输入设备120包括圆形触摸板组件130和壳体132。圆形触摸板组件130由装饰盘134、电路板136、加强板138和按钮帽140构成。电路板136包括顶面上的电极层148和底面上的四个机械开关150(见图12)。开关150可被极大地改变。通常，它们可以对应于轻触开关。更具体地说，它们对应于封装的或嵌入的SMT安装的圆顶开关。作为例子，可以使用由日本的APLS制造的圆顶开关。虽然未示出，电路板136的背面还包括用于触摸板的支持电路(例如，ASIC、连接器等)。附着在电路板136顶面的装饰盘134配置为保护位于电路板136上的电极层148。可采用任何适当的材料形成装饰盘134，当使用电容传感时通常以非导电材料形成装饰盘134。作为例子，可采用塑料、玻璃、木材等形成装饰盘。此外，可以使用任意适合的附加装置将装饰盘134附加到电路板136，附加装置包括但不限于粘合剂、胶水、卡锁、螺栓等。在一个实施例中，在电路板136和装饰盘134之间放置有双面胶带，以便使装饰盘134附着于电路板136。
附着于电路板136后面的加强板138配置为增加电路板136的强度。如应当理解的，电路板通常具有某种弯曲量。加强板138减少该弯曲量，从而形成刚性结构。加强板138包括多个孔。某些孔152配置为容纳穿过它的四个机械开关150，而其他孔诸如孔154和156可用作组件间隔(或其他开关)。加强板138还包括从加强板138的外周边延伸的多个耳状物158。耳状物158配置为建立触摸板组件130可绕其转动的轴，以形成每个按钮区域126A-D的点击动作，同时将触摸板组件130保持在壳体132内。还可采用任意刚性材料形成加强板。例如，可采用钢、塑料等形成加强板。在某些情况下，钢可被涂覆。此外，可使用任何适当的附加装置将加强板138附加到电路板136，附加装置包括但不限于粘合剂、胶水、卡锁、螺栓等。在一个实施例中，在电路板136和加强板138之间放置有双面胶带，以便使加强板138附着于电路板136。
此外，按钮帽140布置在装饰盘134和电路板136的顶面之间。按钮帽140的一部分配置为通过装饰盘134内的开口160伸出，而另一部分保持在由装饰盘134和电路板136的顶面形成的空间内(见图10和11)。可按压按钮帽140的伸出部分以激活位于按钮帽140之下的开关150E。开关150E附着于壳体132，并且穿过加强板138、电路板136和装饰盘134内的开口。当组装后，开关150E的激励器通过弹性元件将按钮帽140推到图10和11中所示的竖立位置。
在另一方面，壳体132由基板142、框架144和一对固定板146形成。当组装后，固定板146、基板142和框架144定义了用于将加强板138可移动地限制到壳体132的空间166。框架144包括用于容纳加强板138的开口168。如图所示，开口168的形状与加强板138的形状匹配。事实上，开口168包括用于容纳加强板138的耳状物158的定位槽口170。定位槽口170与耳状物158协同工作以便将触摸板组件130定位在X和Y平面，防止绕Z轴的旋转，并且建立用于形成与每个按钮区域124A-D相关联的点击动作的转动区域。基板142封闭开口168的底，并且固定板146的角位于耳状物158和定位槽口170上，从而将加强板138保持在壳体132的空间166内。
如图10和11所示，框架144附着于基板142上，并且固定板146附着于框架144。可以使用任何适合的附加装置，包括但不限于粘合剂、胶水、卡锁、螺栓等。在一个实施例中，固定板146通过双面胶带附着于框架144，并且框架144通过位于框架/基板角上的螺栓附着于基板142。可以通过各种结构材料诸如金属、塑料等形成壳体132的部件。
在该配置中，当用户在按钮区域126上按下时，包含在定位槽口170中的按钮区域126另一侧上的耳状物158被固定板146别住。当被别住时，耳状物158和固定板146之间的接触点定义了一个轴，触摸板组件130相对于壳体132绕着该轴转动。作为例子，耳状物158A和158B建立用于按钮区域126A的轴，耳状物158C和158D建立用于按钮区域126D的轴，耳状物158A和158C建立用于按钮区域126C的轴，耳状物158B和158D建立用于按钮区域126D的轴。为了进一步说明，当用户在按钮区域126A上按压时，触摸板组件130在按钮区域126A的区域内向下移动。当按钮区域126A克服开关150A的弹力向下移动时，相反的耳状物158A和158B被固定板146的角别住。
虽然未示出，触摸板组件130在某些情况下可以是背部照明的。例如，电路板可以在任一侧提供有发光二极管以便指明按钮区域，提供额外的反馈等。
如前所述，这里描述的输入设备可集成在电子设备内，或它们可为单独的独立设备。图13和14示出集成到电子设备中的输入设备200的某些实现。在图13中，输入设备200被结合在媒体播放器202内。在图14中，输入设备200被结合在膝上计算机204内。另一方面，图15和16示出作为独立单元的输入设备200的某些实现。在图15中，输入设备200是连接到台式计算机206的外部设备。在图16中，输入设备200是无线连接到对接站208的远程控制，媒体播放器210对接于对接站208内。然而应当注意，该远程控制还可配置为直接与媒体播放器(或其他电子设备)交互，从而消除对于对接站的需要。用于媒体播放器的对接站的例子可见于提交于2003年4月25日的名为“MEDIAPLAYER SYSTEM”第10/423490号专利申请，将其结合在此作为参考。应当注意，这些特定的实施例不是限制，并且可以使用许多其他设备和配置。
再次参考图13，将更详细地讨论媒体播放器202。术语“媒体播放器”一般指专用于处理诸如音频、视频或其他图像的媒体的计算设备，例如音乐播放器、游戏机、视频播放器、录影机、照相机等。在某些情况下，媒体播放器包含单个功能性(例如，专用于播放音乐的媒体播放器)，而在其他情况下，媒体播放器包含多个功能性(例如，用于播放音乐、显示视频、存储图像等的媒体播放器)。在每种情况下，这些设备一般是便携的，从而允许用户听音乐、玩游戏或播放视频、录影或拍摄用户旅游地点的照片。
在一个实施例中，媒体播放器是手持设备，其大小适合于放置在用户的口袋中。通过使其具有口袋大小，用户不必直接携带该设备，并且因此该设备几乎可被带到用户旅行的各处(例如，用户不会被携带大的、笨拙的并且通常沉重的设备、诸如膝上或笔记本计算机所限制)。例如，在音乐播放器的情况下，用户可以在体育馆中运动时使用该设备。在照相机的情况下，用户可以在登山时使用该设备。在游戏机的情况下，用户可以在驾车旅行时使用该设备。此外，可由用户的手操作该设备，不需要诸如桌面的基准面。在所说明的实施例中，媒体播放器202是口袋大小的手持MP3音乐播放器，其允许用户存储大量音乐(例如，在某些情况下多至4000首CD音质的歌曲)。作为例子，MP3音乐播放器可以对应于由Cupertino，CA的Apple Computer制造的iPod MP3播放器。虽然主要用于存储和播放音乐，但此处示出的MP3音乐播放器还包括附加的功能，诸如存储日历和电话簿、存储并玩游戏、存储相片等。事实上，在某些情况下，它可用作非常便于携带的存储设备。
如图13所示，媒体播放器202包括壳体222，壳体222将各种电子组件(包括集成电路芯片和其他电路)封闭在内部，以提供媒体播放器202的计算操作。此外，壳体222还可以定义媒体播放器202的形状或形式。即，壳体222的轮廓可以体现媒体播放器202的外部物理外观。包含在壳体222内的集成电路芯片和其他电路可以包括微处理器(例如，CPU)、存储器(例如，ROM，RAM)、电源(例如，电池)、电路板、硬盘驱动器、其他存储器(例如，闪速存储器)和/或各种输入/输出(I/O)支持电路。该电子组件还可以包括用于输入或输出音乐或声音的组件，诸如麦克风、扩音器和数字信号处理器(DSP)。该电子组件还可以包括用于捕捉图像的组件，诸如图像传感器(例如，电荷耦合器件(CCD)或互补金属氧化物半导体(CMOS))或光学器件(例如，透镜、分光器、滤光器)。
在所说明的实施例中，媒体播放器202包括硬盘驱动器，从而给予媒体播放器大容量存储容量。例如，20GB的硬盘驱动器可以存储多至4000首歌曲或大约266小时的音乐。相反，基于闪速存储器的媒体播放器平均存储多至128MB或大约两小时的音乐。硬盘驱动器容量可被极大地改变(例如，5、10、20MB等)。除了硬盘驱动器，此处示出的媒体播放器202还包括电池、诸如可充电锂聚合物电池。这些类型的电池能够给媒体播放器提供大约10小时的连续播放时间。
媒体播放器202还包括显示屏224和相关电路。显示屏224用于向用户显示图形用户界面和其他信息(例如，文本、对象、图形)。例如，显示屏224可以是液晶显示器(LCD)。在一个特定实施例中，显示屏对应于具有白的LED背部照明以便在白天和微光情况下提供清楚的可视性的160乘128像素的高分辨率显示器。如图所示，通过壳体222中的开口225并透过置于开口225前面的透明壁226，显示屏224对于媒体播放器202的用户是可见的。虽然是透明的，但也认为透明壁226是壳体222的一部分，因为它有助于定义媒体播放器202的形状或形式。
媒体播放器202还包括诸如前面所述的任意一种的触摸板200。触摸板200一般包括用于接收手指在触摸板230上的操作的可触摸外表面231。虽然图13中未示出，但是可触摸外表面231下面是传感器装置。该传感器装置包括多个传感器，这些传感器配置为当手指停在它们上面、在它们上面敲击或经过它们时激活。在最简单的情况下，每次手指位于传感器之上时产生电子信号。给定时间范围内的信号数目可以指示触摸板上手指的位置、方向、速度和加速度，即，用户越多地移动他或她的手指，越多的信号产生。在大多数情况下，由电子接口监视该信号，该电子接口将所述信号的数目、组合和频率转换为位置、方向、速度和加速度信息。这种信息可由媒体播放器202使用以便在显示屏224上执行所希望的控制功能。例如，用户可以通过在触摸板200各处回旋手指容易地在歌曲列表中滚动。
除了上述之外，该触摸板还可包括一个或多个可移动按钮区域A-D以及中央按钮E。该按钮区域配置为提供用于进行选择或发出与操作媒体播放器202有关的命令的一个或多个专用控制功能。作为例子，在MP3音乐播放器的情况下，按钮功能可以与打开菜单、播放歌曲、快进歌曲、在菜单中寻找、进行选择等有关。在大多数情况下，通过机械点击动作实现按钮功能。
触摸板200相对于壳体222的位置可被极大地改变。例如，触摸板200可放置在在媒体播放器202的操作过程中用户可接触到的壳体222的任意外表面处(例如，顶部、侧面、前面或背面)。在大多数情况下，触摸板200的触敏表面231完全暴露给用户。在所说明的实施例中，触摸板200位于壳体222的下侧前面区域。此外，触摸板230可以凹进壳体222的表面、与壳体222的表面平齐或伸出壳体222的表面。在所说明的实施例中，触摸板200的触敏表面231大体上与壳体222的外表面平齐。
触摸板200的形状可被极大地改变。虽然示出为圆形，但触摸板还可以是正方形、矩形、三角形等。更具体地说，触摸板是环状的，即形状类似环或形成环。这样，触摸板的内部和外部周长定义该触摸板的工作边界。
媒体播放器202还可以包括保持开关234。保持开关234配置为激活或失去活与其相关的触摸板和/或按钮。这一般用于防止通过触摸板和/或按钮输入不希望的命令，例如，当媒体播放器存放在用户的口袋内时。当失活时，来自按钮和/或触摸板的信号不被发送或被媒体播放器忽略。当激活时，发送来自按钮和/或触摸板的信号，从而可由媒体播放器接收和处理。
此外，媒体播放器202还可包括一个或多个耳机插孔236和一个或多个数据端口238。耳机插孔236能够接纳与配置为收听媒体播放器202输出的声音的耳机相关联的耳机连接器。在另一方面，数据端口238能够接纳配置为向主机设备、诸如通用计算机(例如，台式计算机、便携计算机)传输数据和从中接收数据的数据连接器/缆线组件。作为例子，数据端口238可用于向媒体设备202上传或从媒体设备202下载音频、视频和其他图像。例如，数据端口可用于将歌曲、播放列表、有声读物、电子书、相片等下载到媒体播放器的存储机构中。
数据端口238可被极大地改变。例如，数据端口可以是PS/2端口、串行端口、并行端口、USB端口、Firewire端口等。在某些情况下，数据端口238可以是射频(RF)链路或红外光(IR)链路以消除对缆线的需要。虽然图12中未示出，媒体播放器202还可包括容纳用于给媒体播放器202输送电能的电源连接器/缆线组件的电源端口。在某些情况下，数据端口238既可用作数据端口又可用作电源端口。在所说明的实施例中，数据端口238是具有数据和电源两种功能的Firewire端口。
虽然仅示出一个数据端口，但应当注意这不是限制，并且可有多个数据端口结合到媒体播放器内。类似地，数据端口可以包括多种数据功能性，即，将多个数据端口的功能性集成为单个数据端口。另外，应当注意，壳体上保持开关、耳机插孔和数据端口的位置可被极大地改变。即，不限于图13中示出的位置。它们几乎可位于壳体上的任意位置(例如，前面、背面、侧面、顶部、底部)。例如，数据端口可位于壳体的底面上而不是如图所示在顶面上。
图17和18是示出根据本发明的一个实施例、输入设备250在媒体播放器252内的安装的示意图。作为例子，输入设备250可以对应于前面所述那些输入设备的任意一种，并且媒体播放器252可以对应于图13中示出的媒体播放器。如图所示，输入设备250包括壳体254和触摸板组件256。媒体播放器252包括壳或外壳258。壳258的前壁260包括开口262，用于当将输入设备250引入媒体播放器252时允许用户接触触摸板组件256。前壁260的内侧264包括在媒体播放器252的壳258内用于接收输入设备250的通道或轨道264。通道264配置为接收输入设备250的壳体254的边，从而输入设备250可以滑入壳258内其预期的位置。该通道的形状具有与壳体254的形状大体一致的形状。在装配过程中，触摸板组件256的电路板266与开口262对准，并且装饰盘268和按钮帽270安装在电路板266的顶部。如图所示，装饰盘268具有大体上与开口262一致的形状。该输入设备可通过保持机构诸如螺钉、卡锁、粘合剂、压接机构、挤压凸缘等保持在所述通道内。
图19是根据本发明的一个实施例、结合输入设备282的远程控制280的简化方框图。作为例子，输入设备282可以对应于前面所述的任意一种输入设备。在该特定实施例中，输入设备282对应于图7-11中示出的输入设备，因此该输入设备包括触摸板284和多个开关286。触摸板284和开关286在操作上可连接到无线传输器288。无线传输器288配置为通过无线通信链路传输信息，从而具有接收功能的电子设备可以通过该无线通信链路接收信息。无线传输器288可被极大地改变。例如，它可基于无线技术诸如FM、RF、Bluetooth、802.11UWB(超宽带)、IR、磁链(感应)等。在所说明的实施例中，无线传输器288基于IR。IR一般指通过红外射线传输数据的无线技术。从而，无线传输器288一般包括IR控制器290。IR控制器290获得从触摸板284和开关286报告的信息，并且例如使用发光二极管292将该信息转换为红外射线。
图20A和20B是根据本发明的另一个实施例的输入设备300的示意图。该实施例与图5-12中示出的类似，然而不是依靠开关的弹性组件，输入设备300使用单独的弹性组件306。如图所示，输入设备300包括包含其所有各层的触摸板302。触摸板302通过弹性组件306连接到输入设备300的框架304或壳体。当在触摸板302上施加力时，弹性组件306(或弯曲)允许触摸板302在多个方向转动，从而允许建立多个按钮区域。弹性组件306还使触摸板302处于类似于前述实施例的的竖立位置。当在特定按钮区域压下触摸板302时(克服弹力)，触摸板302移动从而与位于触摸板302的按钮区域之下的开关308相接触。一接触，开关308产生按钮信号。开关308可以附着于触摸板302或壳体304。在该实施例中，开关308附着于壳体302。在某些情况下，可提供密封310以消除触摸板302和壳体304之间的缝隙和间隙。弹性组件306可被极大地改变。例如，可以用一个或多个传统的弹簧、活塞、磁体或可塑元件形成弹性组件306。在所说明的实施例中，弹性组件306采用由橡胶或泡沫塑料形成的可塑缓冲垫的形式。
虽然以若干优选实施例描述了本发明，但存在落入本发明范围内的变形、置换和等同物。应当注意，有许多实现本发明的方法和装置的可选择方式。因此旨在将下面所附的权利要求解释为包括本发明的正确精神和范围内的所有这些变形、置换和等同物。

Claims (31)

1、一种输入设备，包括：
可移动触摸板，配置为当移动所述可移动触摸板时产生第一控制信号和当对象定位在所述可移动触摸板上时产生第二控制信号。
2、如权利要求1所述的输入设备，其中所述触摸板在竖立位置和压下位置之间移动，当移动到所述压下位置时，所述可移动触摸板产生所述第一控制信号。
3、如权利要求1所述的输入设备，其中所述第一控制信号是按钮信号，并且所述第二控制信号是追踪信号。
4、如权利要求1所述的输入设备，还包括框架组件，所述可移动触摸板配置为相对于所述框架组件移动。
5、如权利要求4所述的输入设备，其中所述可移动触摸板相对于所述框架组件以万向架固定。
6、如权利要求4所述的输入设备，其中所述可移动触摸板相对于所述框架组件旋转、转动、滑动、平移或弯曲。
7、如权利要求4所述的输入设备，还包括包含在所述框架组件内的移动指示器，所述移动指示器配置为感知所述可移动触摸板的移动，所述第一控制信号基于所述移动指示器感知到的移动。
8、如权利要求7所述的输入设备，其中所述移动指示器是开关或传感器。
9、如权利要求1所述的输入设备，其中所述可移动触摸板包括传感器装置，所述传感器装置配置为感知定位在所述可移动触摸板上的对象，所述第二控制信号基于所感知到的对象相对于所述可移动触摸板的位置。
10、如权利要求1所述的输入设备，其中所述传感器装置基于电阻传感、表面声波传感、压力传感、光学传感或电容传感。
11、一种输入设备，包括：
框架；
可移动地限制在所述框架的刚性触摸板，所述刚性触摸板配置为当对象定位在所述刚性触摸板上时产生追踪信号；
包含在壳体内的一个或多个移动指示器，所述移动指示器配置为当所述刚性触摸板相对于所述框架移动时产生一个或多个按钮信号。
12、如权利要求1所述的输入设备，其中将所述触摸板划分为多个空间上不同的按钮区域，所述按钮区域中的每一个具有相应的移动指示器，用于当在所述按钮区域的范围内移动所述刚性触摸板时产生不同的按钮信号。
13、如权利要求11所述的输入设备，其中所述触摸板包括用于支撑所述触摸板的组件的刚性平台和用于追踪其上的对象的移动的触敏表面。
14、如权利要求13所述的输入设备，其中所述刚性平台包括电路板。
15、如权利要求14所述的输入设备，其中所述刚性平台包括加强板。
16、如权利要求13所述的输入设备，其中所述触敏表面包括传感层。
17、如权利要求13所述的输入设备，其中所述传感层基于电容传感。
18、如权利要求11所述的输入设备，其中所述移动指示器对应于轻触开关。
19、如权利要求18所述的输入设备，其中所述轻触开关位于所述触摸板和在相应的按钮区域之下的框架之间。
20、一种输入设备，包括：
触摸板组件，包括具有第一侧和第二侧的电路板、位于所述电路板的所述第一侧上的电极层、位于所述电极层上的装饰板、位于所述电路板的所述第二侧上的一个或多个开关和位于所述电路板的所述第二侧上的加强板；和
壳体组件，包括基板、框架和一个或多个固定板，所述基板、框架和一个或多个固定板协作以便可移动地将触摸组件的至少一部分约束在由所述基板、框架和一个或多个固定板限定的空间内。
21、一种计算系统，包括：
能够接收、处理和输出数据的计算设备；和
输入设备，配置为将数据发送到所述计算设备以便在所述计算设备内执行活动，所述输入设备包括配置为产生追踪信号的可压下触摸板，和配置为当压下所述触摸板时产生一个或多个按钮信号的一个或多个移动指示器。
22、如权利要求21所述的计算系统，其中所述计算设备是媒体播放器。
23、如权利要求21所述的计算系统，其中所述输入设备通过有线连接在操作上连接到所述计算设备。
24、如权利要求21所述的计算系统，其中所述输入设备通过无线连接在操作上连接到所述计算设备。
25、如权利要求21所述的计算系统，其中所述输入设备与所述计算设备分离。
26、如权利要求21所述的计算系统，其中所述输入设备与所述计算设备集成在一起。
27、如权利要求21所述的计算系统，其中所述输入设备可移动地连接到所述计算设备。
28、如权利要求21所述的计算系统，其中所述计算设备包括处理器、输入/输出控制器、显示控制器、显示器和程序存储区域。
29、如权利要求21所述的计算系统，其中所述追踪信号基于笛卡尔坐标。
30、如权利要求21所述的计算系统，其中所述追踪信号基于极坐标。
31、如权利要求21所述的计算系统，其中所述触摸板能够以绝对模式或相对模式报告数据。
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