CN101438225A - 多重触摸使用、姿势及实现 - Google Patents

多重触摸使用、姿势及实现 Download PDF

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CN101438225A
CN101438225A CNA2007800167332A CN200780016733A CN101438225A CN 101438225 A CN101438225 A CN 101438225A CN A2007800167332 A CNA2007800167332 A CN A2007800167332A CN 200780016733 A CN200780016733 A CN 200780016733A CN 101438225 A CN101438225 A CN 101438225A
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touch
screen
touch panel
panel device
posture
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A·J·佐托夫
B·D·斯科特
R·L·汤森
S·P·道齐
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Microsoft Technology Licensing LLC
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    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0416Control or interface arrangements specially adapted for digitisers
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/048Interaction techniques based on graphical user interfaces [GUI]
    • G06F3/0487Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser
    • G06F3/0488Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser using a touch-screen or digitiser, e.g. input of commands through traced gestures
    • G06F3/04883Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser using a touch-screen or digitiser, e.g. input of commands through traced gestures for inputting data by handwriting, e.g. gesture or text
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03Arrangements for converting the position or the displacement of a member into a coded form
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/048Interaction techniques based on graphical user interfaces [GUI]
    • G06F3/0481Interaction techniques based on graphical user interfaces [GUI] based on specific properties of the displayed interaction object or a metaphor-based environment, e.g. interaction with desktop elements like windows or icons, or assisted by a cursor's changing behaviour or appearance
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/041Indexing scheme relating to G06F3/041 - G06F3/045
    • G06F2203/04104Multi-touch detection in digitiser, i.e. details about the simultaneous detection of a plurality of touching locations, e.g. multiple fingers or pen and finger
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/048Indexing scheme relating to G06F3/048
    • G06F2203/04808Several contacts: gestures triggering a specific function, e.g. scrolling, zooming, right-click, when the user establishes several contacts with the surface simultaneously; e.g. using several fingers or a combination of fingers and pen

Abstract

可改进具有启用触摸屏的交互式显示器的图形输入板PC来向用户提供优越的可用性和效率。触摸屏设备可被配置成接收多个并发触摸屏接触。多个并发触摸屏接触的属性可被映射到在计算设备上执行的操作。结果,用户可在更为方便的情况下触发切换辅助功能操作和屏幕旋转操作的执行。而且,图形输入板PC可被配置成将操作映射到手姿势或输入。

Description

多重触摸使用、姿势及实现
背景
计算设备与用户之间的交互随着计算平台变得越来越强大并能够以众多新的且不同的方式响应用户而继续改善。用户不再需要仅在键盘上打字以便于控制应用程序和输入数据。如微软公司的
Figure A200780016733D0005181114QIETU
操作系统所提供的图形用户界面系统的开发通过允许用户以更自然且直观的方式输入动作和作出选择来极大地改善了用户与计算设备交互的容易程度。用户可输入控制动作的容易程度在例如视频游戏、虚拟环境、文件/文件夹管理等其中需要快速且高效地提供输入的应用中尤其重要。以往,用户一般通过操纵鼠标、操纵杆、滚轮、游戏手柄、跟踪球或其他用户输入设备来与虚拟环境交互以实现如产生虚拟环境的软件程序所定义的某些操作。
一种形式的用户输入采用响应于用户手指或指示笔的触摸的显示器。这些触摸敏感设备在计算系统中正变得更为常见。它们非常方便,因为它们允许用户作出用户在其他环境中熟悉的自然姿势,诸如通过使用指示笔来输入笔迹。这些设备中的许多也允许输入由非指示笔物体提供,诸如用户的手指。触摸敏感显示器可以是压力激活的、响应于电容或磁场强度的改变、采用表面声波、通过检测手指或物体在显示器上的光或阴影来响应于亮度的改变、或响应于指示手指或指示笔在显示器上的位置的其他条件。结果,用户可更直接地与计算设备上的应用程序或操作系统交互。例如,用户可用单个手指来触摸触摸敏感的显示器以选择虚拟对象然后将所选的虚拟对象拖曳至触摸敏感显示器上的新位置。将在本文中使用术语触摸屏或交互式显示设备来指这样的被配置成检测指示笔和/或非指示笔物体的触摸的表面、显示器或设备。
一般,触摸敏感、电容、或电磁敏感的显示器表面缺乏良好的成像分辨率,不足以区分物体的形状或方向,且在感测在某一时刻与显示器表面接触的多个物体方面有缺陷。而且,压力敏感显示器表面要求与显示表面的实际接触,且不能响应于显示器表面附近的物体。从而,需要交互式显示设备响应于交互式显示设备所检测到的用用户手指或其他物体所作出的特定姿势。
概述
公开了用于从用户接收多个并发输入或姿势以对计算系统执行直观或用户配置的操作的交互式显示设备。根据本发明的各方面,公开了具有触摸屏设备的计算系统,触摸屏包括用于响应于用户输入或姿势对计算系统执行操作的交互式显示设备。用户输入或姿势可以是多个并发触摸屏接触或按大体预定义的模式改变的多个并发触摸屏接触。在一个示例中,用户可通过在交互式显示设备上使用两个手指在计算设备上执行切换辅助功能(accessibility aid)操作。在另一示例中,用户可沿交互式显示设备的表面按开罐盖路径移动除大拇指以外所有四个手指和大拇指执行屏幕旋转操作。
而且,公开了存储用于执行本发明各方面的计算机可执行指令的计算机可读介质。计算机可读指令可存在于计算系统的一个或多个级上,例如设备驱动器级、操作系统级、应用程序级或其他。
提供本概述以便以简化的形式介绍将在以下详细描述中进一步描述的一些概念。本概述并不旨在标识出所要求保护的主题的关键特征或必要特征,也不旨在用于限制所要求保护的主题的范围。
附图简述
作为示例而非限制,在附图中示出了本发明的各方面,附图中相同的参考标号指示相似的元素,附图中:
图1是根据本发明各方面的说明性计算环境。
图2是根据本发明各方面的说明性计算设备。
图3根据本发明的各方面描绘了用于执行切换辅助功能操作的用户输入的流程图。
图4根据本发明的各方面描绘了用于执行屏幕旋转操作的用户姿势的流程图。
图5描绘了用户输入或姿势及其相应的操作在存储器中的映射。
图6根据本发明的各方面示出了屏幕辅助功能的一个示例的说明性屏幕截图。
图7根据本发明的各方面示出了屏幕辅助功能的另一个示例的说明性屏幕截图。
详细描述
本发明的各方面涉及响应于来自触摸敏感输入设备的用户的输入或姿势在诸如图形输入板的计算设备上执行操作。作为通用的输入方法,根据本发明各方面的触摸敏感输入设备(例如触摸屏设备)可执行各种任务,包括但不限于支持多个同时的触摸屏接触(即多重触摸支持)。例如,配备常规触摸屏设备的计算设备可为用户提供适当的屏幕上键盘支持。同时,多重触摸能力允许用户用一个手指保持换挡(shift)键或另一修改键同时用另一手指打字。同时,在协作环境中,根据本发明各方面的触摸屏设备支持来自多个用户的并发输入,例如在电子白色书写板情形中。而且,根据本发明各方面的触摸屏设备提供对诸如支持手指绘画的图形应用程序的ISV应用程序中的多个输入流的支持。
根据本发明的各方面,计算系统上触摸屏设备的用户可用多个手指创建直观姿势或修改现有的姿势,和弦(例如,为辅助动作进行多个手指轻打)或“打上钉子(spiking)”(例如,手指轻打以及立即相对的手指轻打,而不从触摸屏设备上举起手指)以及预配置系统来响应于姿势执行操作。例如,单手指轻打打钉动作可用于主要动作。例如,用户可响应于预定的姿势或输入切换辅助功能(例如,悬停窗口小部件、触摸指针、软键盘等)的可见性或可用性。在另一示例中,用户可响应于预定姿势改变系统所显示的可视对象的方向(例如屏幕旋转)。在审阅此处所公开的全文以后,本领域的技术人员将理解,根据本发明的各方面,有多个直观且会对触摸屏设备良好转换的姿势。
说明性计算环境
参考图1,用于实现本发明的说明性系统包括计算设备,诸如计算设备100。在其最基本的配置中,计算设备100通常包括至少一个处理单元102和存储器104。取决于计算设备的确切配置和类型,存储器104可以是易失性的(如RAM)、非易失性的(如ROM、闪存等)或是两者的某种组合。该最基本配置在图1中由虚线106来例示。另外,设备100还可具有附加的特征/功能。例如,设备100还可包含附加存储(可移动和/或不可移动),包括但不限于磁或光盘或磁带。这样的附加存储在图1中由可移动存储108和不可移动存储110示出。计算机存储介质包括以用于存储诸如计算机可读指令、数据结构、程序模块或其它数据等信息的任何方法或技术来实现的易失性和非易失性、可移动和不可移动介质。存储器104、可移动存储108和不可移动存储110都是计算机存储介质的示例。计算机存储介质包括但不限于,RAM、ROM、EEPROM、闪存或其它存储器技术、CD-ROM、数字多功能盘(DVD)或其它光存储、磁带盒、磁带、磁盘存储或其它磁存储设备、或者可用于存储所需信息并且可由设备100访问的任何其它介质。任何这样的计算机存储介质都可以是设备100的一部分。
设备100还可包含允许该设备与其它设备通信的通信连接112。通信连接112是通信介质的一个示例。通信介质通常以诸如载波或其它传输机制等已调制数据信号来体现计算机可读指令、数据结构、程序模块或其它数据,并包括任意信息传送介质。术语“已调制数据信号”指的是其一个或多个特征以在信号中编码信息的方式被设定或更改的信号。作为示例而非限制,通信介质包括有线介质,诸如有线网络或直接线连接,以及无线介质,诸如声学、RF、红外线和其它无线介质。如此处所使用的术语计算机可读介质包括存储介质和通信介质两者。
设备100也可具有输入设备114,诸如键盘、鼠标、笔、语音输入设备、触摸输入设备、触摸屏设备、交互式显示设备等。还可包括输出设备116,如显示器、扬声器、打印机等。
本发明的各方面可在诸如程序模块等由计算机执行的计算机可执行指令的通用上下文中描述。一般而言,程序模块包括执行特定任务或实现特定抽象数据类型的例程、程序、对象、组件、数据结构等。本发明的各方面也可以在其中任务由通过通信网络链接的远程处理设备执行的分布式计算环境中实现。在分布式计算环境中,程序模块可以位于包括存储器存储设备在内的本地和远程计算机存储介质中。
图2描绘了能够根据本发明的各方面使用的说明性图形输入板PC 208。图1的系统中的任何或所有特征、子系统以及功能都能够被包括在图2的图形输入板中。图形输入板208包括大显示器表面204,例如数字化平板显示器,优选地是液晶显示器(LCD)屏。使用指示笔(202、210),用户能够在交互式显示设备屏204上选择、突出显示和/或书写。另外,用户自己的手指可以作为指示笔(202、210),且用于在触摸敏感显示器或邻近性敏感设备上选择和指示所显示的图像的各部分。合适的数字化显示器表面204的示例包括诸如Mutoh或Wacom笔数字化仪等电磁笔数字化仪。也可使用其它类型的数字化仪,例如光学数字化仪和电容数字化仪。图形输入板208解释使用指示笔(202、210)或用户的手作出的以便操纵数据、输入文本、创建绘图、执行预配置的操作和/或执行诸如电子表、文字处理程序等常规计算机应用程序任务等的姿势。区域206显示允许用户确定指示笔(202、210)在哪里与显示器表面204接触的反馈区域或接触区域。
在各种实施例中,该系统提供一种墨水平台,作为应用程序能够用来捕捉、操纵和存储墨水的一组COM(组件对象模型)服务。一种服务允许应用程序使用所公开的墨水表示来读取和书写墨水。墨水平台还可包括标记语言,包括如可扩展标记语言(XML)等语言。此外,系统可使用DCOM作为另一实现。可使用另外的实现,包括微软公司的Win32编程模型和.NET编程模型。
根据本发明的各方面,图3描绘了用于响应于从用户接收的输入在计算系统上执行操作的计算机实现的方法的流程图。在一个示例中,计算系统可以是图形输入板计算机208。图形输入板可由包括交互式显示设备的触摸屏设备组成。作为示例,图形输入板的用户可使用他或她的手来与触摸屏设备接触,以与显示在交互式显示设备的屏幕上的物体交互等。
在步骤302,触摸屏设备接收用户提供的输入。根据本发明的各方面,用户可提供多个并发触摸屏接触。输入具有对应于每一触摸屏接触的属性。触摸屏接触的属性的某些示例包括但不限于:接触区的大小(例如,尺度)、接触区的绝对位置、接触区的相对位置(例如相对于其他并发接触的位置)、施加在接触区上的压力量以及本领域技术人员所知的触摸屏设备的输入的其他特征。
在步骤304,根据本发明各方面处理用户输入。处理用户输入包括但不限于:标识每一触摸屏接触的属性以及标识要响应于输入执行的操作(如果有)。例如,根据本发明各方面的计算系统可标识触摸屏设备上不同位置(即,地点)处的多个并发触摸屏接触。作为示例,第一触摸屏接触可位于触摸屏设备左上角向下十个像素向右四十个像素的绝对位置处。第二触摸屏接触可位于触摸屏设备左上角向下五个像素向右五十个像素的绝对位置处。此外,触摸屏设备可标识多个并发触摸屏接触中每一个的尺度。
根据本发明的各方面,计算系统(例如,图形输入板)可预配置有用户输入与可在计算系统上执行的操作之间的映射。在之前的示例中,对应于输入的多个并发触摸屏接触的属性指示使用了两个手指来向触摸屏设备提供输入。假定计算系统预配置有切换辅助功能操作(例如,切换触摸指针窗口小部件操作)与上述属性之间的映射,则计算系统在步骤306将标识要执行的适当操作。
结果在步骤308,计算系统执行切换辅助功能操作。在之前的示例中,用户所提供的输入指示应(在步骤308)执行切换辅助功能操作。该特定示例中的切换辅助功能操作是切换触摸指针窗口小部件操作,这导致在交互式显示设备上切换触摸指针窗口小部件的可见性。用户可使用类似于虚拟鼠标指针的触摸指针窗口小部件来更精确地指定交互式显示设备屏幕上的位置,如图6所示。切换辅助功能操作的另一示例是切换软键盘操作,这导致切换软键盘窗口小部件在交互式显示设备上的可见性。图7示出了交互式显示设备上软键盘窗口小部件702的说明性图示。用户可键击或轻击软键盘窗口小部件702来创建类似于常规键盘的输入。辅助功能的其他示例有屏幕朗读器、放大镜和本领域技术人员已知的其他窗口小部件。
参考图6,触摸指针窗口小部件602是指针(例如,鼠标光标604)附近或周围的图形图示。通过将手指放在由触摸指针窗口小部件602所表示的区域(例如,区域606)上并拖曳,用户可按照比用相对迟钝的手指更精确的方式操作指针604。如可以理解地,图6所示的触摸指针窗口小部件602类似于常规鼠标。尽管其他设计可提供改进的界面,但诸如鼠标的这样的常规形状的优点在于它对用户更直观,因为大多数用户对使用鼠标来移动光标感到熟悉。用户也可按压左和右按钮,以便模拟鼠标上的右或左按钮按压。
继续之前的示例,假定触摸指针窗口小部件602之前是不可见的,用户可通过用两个手指,即食指和中指轻击触摸屏设备的交互式显示器界面204来指示计算设备切换触摸指针窗口小部件的可见性(即,使触摸指针窗口小部件可见)。作为响应,计算系统将执行预配置的操作。
尽管之前的示例预配置了两个手指的并发触摸屏设备输入来对应于切换触摸指针窗口小部件操作,但本领域的技术人员可以理解,可将由任何数目的手指组成的输入映射到该操作。而且,触摸屏接触的其他属性(例如触摸屏接触区的压力量)的变化可用于指定其他操作。例如,来自用户的使用两个手指对触摸屏接触区仅稍有压力的输入可被预配置成切换触摸指针窗口小部件操作,而来自用户的使用两个手指对触摸屏接触区具有巨大压力的输入可被预配置成另一操作,例如切换软键盘窗口小部件操作。
根据本发明的各方面,图4描绘了用于响应于从用户接收的姿势在计算系统上执行操作的计算机实现的方法的流程图。在一个示例中,计算系统可以是图形输入板计算机。图形输入板可由包括交互式显示设备的触摸屏设备组成。作为示例,图形输入板的用户可使用他或她的手来与触摸屏设备接触,以与显示在交互式显示设备的屏幕上的物体交互等。
在步骤402,触摸屏设备从计算系统的用户接收姿势。根据本发明的各方面,姿势可由按大体预定义的模式改变的多个并发的触摸屏接触组成。触摸屏接触的属性的某些示例包括但不限于:接触区的大小(例如,尺度)、接触区的绝对位置、接触区的相对位置(例如相对于其他并发接触的位置)、施加在接触区上的压力量以及本领域技术人员所知的触摸屏设备的输入的其他特征。
在步骤404,根据本发明各方面处理姿势。处理姿势包括但不限于:标识每一触摸屏接触的属性以及标识要响应于姿势执行的操作(如果有)。例如,根据本发明各方面的计算系统可标识触摸屏设备上不同位置(即,地点)处的多个并发触摸屏接触。第一、第二、第三和第四并发触摸屏接触可位于触摸屏设备上的半圆形图案中。第五和最后一个并发触摸屏接触可位于由第一、第二、第三和第四触摸屏接触形成的半圆形图案下的相对位置中。此外,触摸屏设备可标识多个并发触摸屏接触的其他属性供标识要执行的相应预配置操作使用。此外,可监控并发多个触摸屏接触的属性中的任何改变以标识任何预定义模式。例如,多个并发触摸屏接触沿触摸屏设备的表面按照大体半圆路径的位置的改变可指示用户期望执行屏幕旋转操作,而按大体线性路径的位置的改变可替换地映射于滚动或平移操作。
根据本发明的各方面,计算系统(例如,图形输入板)可预配置有姿势与可在计算系统上执行的操作之间的映射。在之前的示例中,对应于姿势的多个并发触摸屏接触的属性指示在触摸屏设备上使用了除大拇指以外四个手指和大拇指。此外,多个并发触摸屏接触沿触摸屏设备表面按照大体半圆形的路径移动,类似于开罐盖动作。假定计算系统预配置有屏幕旋转操作(例如,图形输入板屏幕旋转操作)与上述属性之间的映射,则计算系统在步骤406将标识要执行的适当操作。
结果在步骤408,计算系统执行屏幕旋转操作。在之前的示例中,用户所提供的姿势指示应(在步骤408)执行屏幕旋转操作。屏幕旋转操作导致交互式显示设备上显示的所有可见对象(例如,图标、墙纸、任务栏、对话框等)按预定角度如90度旋转。根据本发明的各方面,屏幕旋转操作对选择在横纵方向之间容易地切换他或她的图形输入板的图形输入板用户可能尤其有利。在该示例中,用户可将除大拇指以外所有四个手指和大拇指以圆形形式放置(例如,好像抓紧罐盖一样)并沿屏幕的表面旋转他或她的手来简单地触摸交互式显示器屏幕。作为响应,计算系统将执行预配置的操作(即,屏幕旋转操作)。
尽管之前的示例预配置了除大拇指以外四个手指以及大拇指姿势来对应于屏幕旋转操作,但本领域的技术人员可以理解,仅由两个或多个手指和/或没有大拇指组成的姿势可映射到该操作。而且,触摸屏接触的其他属性(例如触摸屏接触区的压力量)的变化可用于指定其他操作。此外,本领域的技术人员可以理解,可视对象旋转的预定角度可根据用户和/或系统的需求变化。例如,在一个实施例中,根据本发明的各方面,预定角度可在多个并发触摸屏接触时由在用户姿势中执行的圆形旋转的量来确定。而且,在某些示例中,屏幕旋转操作可用于旋转交互式显示设备上的选定对象,例如在计算机图形或绘制程序中。
当审阅了此处公开的全文以后,本领域的技术人员可理解根据本发明的各方面,任何操作的执行可响应于用户定义的输入或姿势来预配置。例如,可将窗口调整大小操作映射到用户在交互式显示设备中的窗口对象上并发使用两个手指。用户可使用两个手指来方便地按需调整窗口或控制框的大小和/或定位窗口或控制框。在另一示例中,用户可使用两个手指来选择在交互式显示设备中显示的项目(例如,文件图标、文件夹图标等),而同时使用第二个手指向所选项目的列表添加或删除项目。这些操作类似于传统的ctrl-点击操作,但增强了可用性和用户效率。在又一示例中,计算设备可被预配置成允许用户的收聚姿势进行缩放。而且,“手指滚动”姿势(即,一开始用小指,然后用无名指、然后中指接着是食指然后是拇指与触摸屏设备接触)可被指定为用于alt-tab或其他排序/选择操作。
根据本发明的各方面,计算系统(例如,图形输入板208)可预配置有输入/姿势与可在计算系统上执行的操作之间的映射。图5描绘了存储在计算系统100中用于预配置操作的用户输入/姿势的说明性映射500。在之前的示例中,使用除大拇指以外四个手指和大拇指在触摸屏设备上按大体半圆形路径改变位置的姿势502被预配置成对应于屏幕旋转操作504。同样地,在之前的示例中,在触摸屏设备上使用两个手指的用户输入506被预配置成对应于切换辅助功能操作508。假定根据本发明各方面的计算系统预配置有操作和上述并发触摸屏接触属性之间的映射,则计算系统将标识要执行的适当操作。
根据本发明的各方面,用于响应于预配置的用户输入或姿势标识要在计算系统上执行的操作的计算机可执行指令可被存储在计算系统中的计算机可读介质中。计算机可执行指令可在设备驱动器级、操作系统级、应用程序级或其他级执行。
在一个示例中,在设备驱动器级,可调整触摸设备的频率特性以允许多个并发触摸屏接触。例如,以133赫兹(hz)报告单个触摸屏接触的常规触摸屏设备可被调整成各自以66hz报告两个并发的触摸屏接触。在另一示例中,可各自以44hz报告三个并发触摸屏接触。尽管根据本发明各方面的该实施例对于变化数目的触摸屏接触缩放良好,但它通过在多个并发触摸屏接触之间划分恒定的报告频率降低了输入分辨率。
在另一示例中,在设备驱动器级,触摸屏设备所提供的分组大小增加以容纳多个并发的触摸屏接触。例如,代替在给定更新中报告具有信息(例如,1千字节信息)的单个触摸屏接触,系统在携带10千字节信息的分组中报告十个并发的触摸屏接触。该方法的缺点在于,除非用户恒定提供10个并发的触摸屏接触,否则就会浪费分组大小。而且,在某些系统中,驱动器被限于报告有限数目的并发触摸屏接触。优点在于假定总线支持增加的分组大小,报告频率不会被更改。
在又一示例中,在设备驱动器级,触摸屏设备可展示两个逻辑设备,一个类似于传统触摸屏设备运作的逻辑设备(例如,报告单个触摸屏接触的数字化仪)和报告关于多个并发触摸屏接触的所有信息的另一逻辑设备。在该示例中,应用程序可用适当的请求,例如包括触摸屏接触的数目、给定触摸屏接触的属性等的请求来从设备和/或驱动器取得所有信息。在另一示例中,所返回的所有信息可以是对应于交互式显示设备屏幕上的每个像素的触摸屏接触的图像(例如,示出每个像素的压力或距设备的距离的灰度级图像)。在以上示例的变化中,如果包括额外的标志以指示额外数据的存在与否,则第二逻辑设备可能是不必要的。应用程序或操作系统然后可选择来例如使用IOCTL检索额外的数据。
根据本发明的各个方面,可使用算法和试探法来接收和处理输入和/或姿势。例如,在某些示例中,计算设备上的应用程序可使用手掌拒绝试探法来预测何时应忽视触摸屏接触。例如,如果触摸屏接触的大小属性过大(例如,如同手的手掌),则忽视该接触可能是有利的。在另一示例中,计算设备上的应用程序可期望完全忽视多个并发接触。在这样的实例中,计算设备的操作系统可维护关于应用程序和用户的状态的信息。在本发明的某些实施例中,在设备驱动器与操作系统之间划分计算逻辑也可能是有利的。本领域的技术人员将理解,跟踪多个触摸接触属性以例如确定何时手指在触摸屏上重复轻击可能是有利的。可向姿势或输入分派一致的光标标识符。
此外,本领域的技术人员将理解,提供应用程序编程员接口(API)以连接并利用本发明各方面的众多特征和功能可能是有利的。例如,诸如StylusDown、Packet和SytlusUp等标准通知可用于向操作系统请求关于多个并发触摸屏接触的所有信息。此外,可在根据本发明的各方面配置的计算系统中使用用于现有平台框架(例如,RealTimeStylus)的一组现成的控件和预置的插件。
尽管用对结构特征和/或方法动作专用的语言描述了本主题,但可以理解,所附权利要求书中定义的主题不必限于上述具体特征或动作。相反,上述具体特征和动作是作为实现权利要求的示例形式公开的。通过审阅以上公开内容,本领域的技术人员可以想到所附权利要求书的范围和精神内的多种其它实施例、修改和变化。

Claims (20)

1.在包括触摸屏设备(114)的计算系统(100)中,一种用于响应于从所述触摸屏设备(114)的用户接收到的输入在所述计算系统(100)上执行操作的计算机实现的方法,其中所述触摸屏设备包括交互式显示设备(204),所述方法包括:
从触摸屏设备的用户接收输入(302),所述输入包括多个并发的触摸屏接触;
处理所述输入(304),其中处理包括标识所述多个并发触摸屏接触的属性以及标识要响应于所述输入执行的操作;以及
响应于所述输入,如果所述输入被预配置成对应于切换辅助功能操作(306),则在计算系统上执行所述操作(308)。
2.如权利要求1所述的方法,其特征在于,触摸指针窗口小部件(602)在交互式显示设备(204)上的可见性响应于所述切换辅助功能操作来切换。
3.如权利要求1所述的方法,其特征在于,所述多个并发触摸屏接触的属性指示两个手指与所述触摸屏设备接触。
4.如权利要求3所述的方法,其特征在于,所述两个手指是用户手上的食指和中指。
5.如权利要求1所述的方法,其特征在于,所述计算系统被预配置有所述切换触摸指针窗口小部件操作(508)与对应于指示两个手指与所述触摸屏设备接触的多个并发触摸屏接触的属性的输入(506)之间的映射(500)。
6.如权利要求1所述的方法,其特征在于,所述计算系统是图形输入板(208)。
7.在包括触摸屏设备(114)的计算系统(100)中,一种用于响应于从所述触摸屏设备(114)的用户接收到的姿势在所述计算系统(100)上执行操作的计算机实现的方法,其中所述触摸屏设备包括交互式显示设备(204),所述方法包括:
从触摸屏设备的用户接收姿势(402),所述姿势包括沿大体预定义的模式改变的多个并发触摸屏接触;
处理所述姿势(404),其中处理包括标识所述多个并发触摸屏接触的属性以及标识要响应于所述姿势执行的操作;以及
响应于所述姿势,如果所述姿势被预配置成对应于屏幕旋转操作(406),则在计算系统上执行所述操作(408)。
8.如权利要求7所述的方法,其特征在于,所述多个并发触摸屏接触的属性指示除大拇指以外的四指中至少一个手指和大拇指与所述触摸屏设备(114)接触。
9.如权利要求7所述的方法,其特征在于,所述多个并发触摸屏接触的属性指示除大拇指以外的四个手指和大拇指(502)与所述触摸屏设备(114)接触。
10.如权利要求9所述的方法,其特征在于,所述大体预定义模式是所述多个并发触摸屏接触沿所述触摸屏设备(114)的表面按大体半圆形路径的位置改变。
11.如权利要求7所述的方法,其特征在于,所述大体预定义模式是所述多个并发触摸屏接触沿所述触摸屏设备(114)的表面按大体半圆形路径的位置改变。
12.如权利要求7所述的方法,其特征在于,所述交互式显示设备(204)上显示的所有可视对象响应于所述屏幕旋转操作按预定角度旋转。
13.如权利要求7所述的方法,其特征在于,所述计算机系统是图形输入板(208)。
14.供在包括计算机可读介质和含有交互式显示设备(204)的触摸屏设备(114)的计算系统(100)中使用的一种存储计算机可执行指令的计算机可读介质,所述指令用于执行以下步骤:
从触摸屏设备的用户接收姿势(402),所述姿势包括沿大体预定义的模式改变的多个并发触摸屏接触;
处理所述姿势(404),其中处理包括标识所述多个并发触摸屏接触的属性以及标识要响应于所述姿势执行的操作;以及
响应于所述姿势,如果所述姿势被预配置成对应于屏幕旋转操作(406),则在计算系统上执行所述操作(408)。
15.如权利要求14所述的计算机可读介质,其特征在于,所述多个并发触摸屏接触的属性指示除大拇指以外四指中的至少一个手指和大拇指与所述触摸屏设备接触。
16.如权利要求14所述的计算机可读介质,其特征在于,所述多个并发触摸屏接触的属性指示除大拇指以外的四个手指和大拇指与所述触摸屏设备接触。
17.如权利要求16所述的计算机可读介质,其特征在于,所述大体预定义模式是所述多个并发触摸屏接触沿所述触摸屏设备的表面按大体半圆形路径的位置改变。
18.如权利要求14所述的计算机可读介质,其特征在于,所述大体预定义模式是所述多个并发触摸屏接触沿所述触摸屏设备的表面按大体半圆形路径的位置改变。
19.如权利要求14所述的计算机可读介质,其特征在于,所述交互式显示设备(204)上显示的所有可视对象响应于所述屏幕旋转操作按预定角度旋转。
20.如权利要求14所述的计算机可读介质,其特征在于,所述计算机系统是图形输入板(208)。
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