Invention Grant
- Patent Title: Simultaneous sensing arrangement
- Patent Title (中): 同时感测布置
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Application No.: US14482979Application Date: 2014-09-10
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Publication No.: US09552115B2Publication Date: 2017-01-24
- Inventor: Steven P. Hotelling , John Greer Elias , Kapil Vinod Sakariya
- Applicant: Apple Inc.
- Applicant Address: US CA Cupertino
- Assignee: Apple Inc.
- Current Assignee: Apple Inc.
- Current Assignee Address: US CA Cupertino
- Agency: Morrison & Foerster LLP
- Main IPC: G06F3/044
- IPC: G06F3/044 ; G06F3/041 ; G06F1/32

Abstract:
Multi-touch touch-sensing devices and methods are described herein. The touch sensing devices can include multiple sense points, each located at a crossing of a drive line and a sense line. In some embodiments, multiple drive lines may be simultaneously or nearly simultaneously stimulated with drive signals having unique characteristics, such as phase or frequency. A sense signal can occur on each sense line that can be related to the drive signals by an amount of touch present at sense points corresponding to the stimulated drive lines and the sense line. By using processing techniques based on the unique drive signals, an amount of touch corresponding to each sense point can be extracted from the sense signal. The touch sensing methods and devices can be incorporated into interfaces for a variety of electronic devices such as a desktop, tablet, notebook, and handheld computers, personal digital assistants, media players, and mobile telephones.
Public/Granted literature
- US20140375612A1 SIMULTANEOUS SENSING ARRANGEMENT Public/Granted day:2014-12-25
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