Input Device for and Method of Communication with Capacitive Devices Through Frequency Variation
First Claim
1. A computing device configured to receive data from a peripheral device, comprising:
- a processor;
a touch interface in communication with the processor and configured to detect an input corresponding to an object approaching or contacting a surface;
a touch filter in communication with the touch interface; and
a peripheral filter in communication with the touch interface;
whereinthe touch filter is configured to reject a peripheral frequency corresponding to a peripheral signal of the peripheral device; and
the peripheral filter is configured to reject a touch frequency component corresponding to a touch signal corresponding to a touch input.
1 Assignment
0 Petitions
Accused Products
Abstract
A computing device configured to receive data from a peripheral device, such as a stylus. The computing device includes a processor, a touch interface, such as a touch screen, in communication with the processor and configured to detect an input corresponding to an object approaching or contacting a surface. The computing device further includes a touch filter in communication with the touch interface and a peripheral filter in communication with the touch interface. The touch filter is configured to reject a peripheral frequency corresponding to a peripheral signal of the peripheral device and the peripheral filter is configured to reject a touch frequency component corresponding to a touch signal corresponding to a touch input.
-
Citations
17 Claims
-
1. A computing device configured to receive data from a peripheral device, comprising:
-
a processor; a touch interface in communication with the processor and configured to detect an input corresponding to an object approaching or contacting a surface; a touch filter in communication with the touch interface; and a peripheral filter in communication with the touch interface;
whereinthe touch filter is configured to reject a peripheral frequency corresponding to a peripheral signal of the peripheral device; and the peripheral filter is configured to reject a touch frequency component corresponding to a touch signal corresponding to a touch input. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
-
-
10. A method for receiving digital data through a touch screen comprising:
-
scanning a plurality of sense lines; filtering a first signal received through one or more of the plurality of sense lines by a touch filter; filtering the first signal by a peripheral filter; and analyzing a touch output from the touch filter and a peripheral output from the peripheral filter to determine whether the first signal is a touch signal or an input device signal. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
-
Specification