Invention Grant
- Patent Title: Blended transfer function for computer pointing devices
- Patent Title (中): 计算机指点设备的混合传递功能
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Application No.: US11837154Application Date: 2007-08-10
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Publication No.: US08049733B2Publication Date: 2011-11-01
- Inventor: Jonathan Betts-LaCroix , Michael Prichard
- Applicant: Jonathan Betts-LaCroix , Michael Prichard
- Applicant Address: US CA Mountain View
- Assignee: Google Inc.
- Current Assignee: Google Inc.
- Current Assignee Address: US CA Mountain View
- Agency: Morris & Kamlay LLP
- Main IPC: G06F3/041
- IPC: G06F3/041

Abstract:
A transfer function is provided for use with computer pointing devices such as trackpads. The transfer function includes a first component having characteristics of a positional transfer function and a second component having characteristics of a velocity-based transfer function. The first (positional) component and the second (velocity-based) component of the transfer function are blended so that the transfer function exhibits purely positional behavior in response to a first range of inputs and exhibits combined positional and velocity-based behavior in response to a second range of inputs. The first range of inputs may, for example, correspond to a region in the input coordinate space that is bounded by a circle having a predetermined threshold radius.
Public/Granted literature
- US20080036745A1 Blended Transfer Function for Computer Pointing Devices Public/Granted day:2008-02-14
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