Invention Grant
- Patent Title: Method of increasing the spatial resolution of touch sensitive devices
- Patent Title (中): 增加触敏设备的空间分辨率的方法
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Application No.: US11203692Application Date: 2005-08-15
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Publication No.: US07932897B2Publication Date: 2011-04-26
- Inventor: John Greer Elias , Wayne Carl Westerman , James Edmund Orr, IV
- Applicant: John Greer Elias , Wayne Carl Westerman , James Edmund Orr, IV
- Applicant Address: US CA Cupertino
- Assignee: Apple Inc.
- Current Assignee: Apple Inc.
- Current Assignee Address: US CA Cupertino
- Agency: Morrison & Foerster LLP
- Main IPC: G06F3/045
- IPC: G06F3/045

Abstract:
Disclosed herein is a capacitive touch sensitive device. One aspect of the touch sensitive device described herein is a reduction in the number of sensor circuits needed for circular or linear capacitive touch sensitive devices while maintaining the same resolution and absolute position determination for a single object. A related aspect of the touch sensitive device described herein a coding pattern that allows each sensor circuit of a capacitive touch sensitive device to share multiple electrodes at specially chosen locations in a sensor array such that the ability to determine the absolute position of a single object over the array is not compromised.
Public/Granted literature
- US20060032680A1 Method of increasing the spatial resolution of touch sensitive devices Public/Granted day:2006-02-16
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