ASYMMETRIC MULTI-ROW TOUCH PANEL SCANNING
First Claim
1. A method for scanning a touch panel, the method comprising:
- retrieving asymmetric scanning parameters and a scan map for a touch panel;
determining orthogonal signals for driving the touch panel; and
asymmetrically scanning the touch panel using the orthogonal signals according to the scan map and the asymmetric scanning parameters.
7 Assignments
0 Petitions
Accused Products
Abstract
Asymmetric scanning logic implements asymmetric panel scanning by scanning some rows on a touch panel more frequently than other rows. Note that although an entire row at a time may be driven, if only particular pixels in the row are of interest (e.g., included in any region of interest for focused asymmetric scanning), then circuitry may power down the receivers for the columns in which the pixels exist to save power. The asymmetric scanning logic facilitates focused attention to specific areas of interest on the touch panel, to compensate, for example, for high noise or low signal strength in those areas of interest.
-
Citations
20 Claims
-
1. A method for scanning a touch panel, the method comprising:
-
retrieving asymmetric scanning parameters and a scan map for a touch panel; determining orthogonal signals for driving the touch panel; and asymmetrically scanning the touch panel using the orthogonal signals according to the scan map and the asymmetric scanning parameters. - View Dependent Claims (2, 3, 4, 5, 6, 7)
-
-
8. Control circuitry for a touch panel, the control circuitry comprising:
-
a touch panel interface; a memory comprising scanning logic and a scan map; and a controller in communication with the memory and the touch panel interface, the controller operable, when the scanning logic is executed, to; asymmetrically scan the touch panel in a region of interest through the touch panel interface according to the scan map. - View Dependent Claims (9, 10, 11, 12, 13, 14)
-
-
15. A product comprising:
-
a machine readable medium; and instructions stored on the medium that when executed by a system, cause the system to; retrieve asymmetric scanning parameters and a scan map for a touch panel; and asymmetrically scan the touch panel in a region of interest according to the scan map and the asymmetric scanning parameters. - View Dependent Claims (16, 17, 18, 19, 20)
-
Specification