Fast multi-touch stylus and sensor
First Claim
1. A method for detecting a position of an event with respect to a device, the device comprising a plurality of first conductors and a plurality of second conductors, the method comprising:
- simultaneously transmitting each of a plurality of orthogonal first signals on a respective one of at least some of the plurality of first conductors;
detecting an amount of each of the plurality of orthogonal first signals present on each of the plurality of second conductors;
simultaneously transmitting each of a plurality of orthogonal second signals on a respective one of at least some of the second conductors, each of the plurality of orthogonal second signals being orthogonal to each other of the plurality of orthogonal second signals; and
detecting an amount of each of the plurality of orthogonal second signals present on each of the plurality of first conductors;
using at least the detected amount of each of the plurality of orthogonal second signals present on each of the plurality of first conductors and the detected amount of each of the plurality of orthogonal first signals present on each of the plurality of second conductors to detect a position of an event with respect to the device.
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Accused Products
Abstract
A stylus and touch sensitive device are disclosed. The stylus includes a stylus transmitter for transmitting a stylus signal. The touch sensitive device includes row conductors, each of which is associated with a row transmitter and a row receiver. The row transmitter is adapted to simultaneously transmit row signals, each on its associated row conductor, each of the row signals being orthogonal to each other of the plurality of row signals transmitted on each other of the row conductors. The row receiver is adapted to detect the stylus signal. Column conductors are provided, each associated with a column receiver that is adapted to detect the presence of each of the row signals transmitted by the row transmitter and the stylus signal.
4 Citations
16 Claims
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1. A method for detecting a position of an event with respect to a device, the device comprising a plurality of first conductors and a plurality of second conductors, the method comprising:
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simultaneously transmitting each of a plurality of orthogonal first signals on a respective one of at least some of the plurality of first conductors; detecting an amount of each of the plurality of orthogonal first signals present on each of the plurality of second conductors; simultaneously transmitting each of a plurality of orthogonal second signals on a respective one of at least some of the second conductors, each of the plurality of orthogonal second signals being orthogonal to each other of the plurality of orthogonal second signals; and detecting an amount of each of the plurality of orthogonal second signals present on each of the plurality of first conductors; using at least the detected amount of each of the plurality of orthogonal second signals present on each of the plurality of first conductors and the detected amount of each of the plurality of orthogonal first signals present on each of the plurality of second conductors to detect a position of an event with respect to the device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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Specification