ACTIVE STYLUS FOR USE WITH TOUCH CONTROLLER ARCHITECTURE
First Claim
1. An active stylus, comprising:
- one or more electrodes at a distal end of the stylus;
control circuitry coupled to the one or more electrodes capable of generating one or more stimulation signals; and
wireless communication circuitry coupled to the control circuitry capable of receiving information from a peripheral device.
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Accused Products
Abstract
A touch controller that can configure touch circuitry according to a scan plan, which can define a sequence of scan events to be performed on a touch panel is disclosed. The touch controller can include a configurable transmit section to generate stimulation signals to drive the panel, a configurable receive section to receive and process touch signals from the panel, and a configurable memory to store the touch signals. The touch controller can also include a programmable scan engine to configure the transmit section, the receive section, and the memory according to the scan plan. The touch controller advantageously provides more robust and flexible touch circuitry to handle various types of touch events at the panel. An active stylus that can generate stimulation signals that can be detected by the touch controller during various touch events at the panel is also disclosed.
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Citations
25 Claims
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1. An active stylus, comprising:
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one or more electrodes at a distal end of the stylus; control circuitry coupled to the one or more electrodes capable of generating one or more stimulation signals; and wireless communication circuitry coupled to the control circuitry capable of receiving information from a peripheral device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method for operating an active stylus capable of stimulating a touch sensitive device, the method comprising:
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receiving information from the touch sensitive device via wireless communication circuitry in the stylus; generating, at control circuitry in the stylus, one or more stimulation signals based on the received information; and applying the one or more stimulation signals to one or more electrodes at a distal end of the stylus. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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25. A non-transitory computer readable storage medium having stored therein instructions, which when executed by an active stylus capable of stimulating a touch sensitive device, causes the stylus to perform a method comprising:
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receiving information from the touch sensitive device via wireless communication circuitry in the stylus; generating, at control circuitry in the stylus, one or more stimulation signals based on the received information; and applying the one or more stimulation signals to one or more electrodes at a distal end of the stylus.
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Specification