Invention Grant
- Patent Title: Power management for touch controller
- Patent Title (中): 触摸控制器的电源管理
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Application No.: US12557962Application Date: 2009-09-11
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Publication No.: US08970506B2Publication Date: 2015-03-03
- Inventor: Christoph Horst Krah , Thomas James Wilson
- Applicant: Christoph Horst Krah , Thomas James Wilson
- Applicant Address: US CA Cupertino
- Assignee: Apple Inc.
- Current Assignee: Apple Inc.
- Current Assignee Address: US CA Cupertino
- Agency: Morrison & Foerster LLP
- Main IPC: G06F1/00
- IPC: G06F1/00 ; G06F1/32 ; G06F3/041

Abstract:
A power management system for a touch controller can include a transmit section for transmitting stimulation signals to an associated touch sensor panel to drive the panel, where the touch controller can selectively adjust the transmit section to reduce power during the transmission. The touch controller can also include a receive section for receiving touch signals resulting from the driving of the panel, where the touch controller can selectively adjust the receive section to reduce power during the receipt of the touch signals. The touch controller can also include a demodulation section for demodulating the received touch signals to obtain touch event results, where the touch controller can selectively adjust the demodulation section to reduce power during the demodulation of the touch signals. The touch controller can also selectively reduce power below present low levels during idle periods. The touch controller can be incorporated into a touch sensitive device.
Public/Granted literature
- US20110061947A1 Power Management for Touch Controller Public/Granted day:2011-03-17
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