The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 16, 2015
Filed:
Mar. 12, 2012
Glen Weaver, San Jose, CA (US);
Sumant Ranganathan, Saratoga, CA (US);
Federico Santiago Cattivelli, Newport Beach, CA (US);
Tianhao LI, Tustin, CA (US);
Bhupesh Kharwa, San Ramon, CA (US);
Satish Vithal Joshi, Cupertino, CA (US);
Kerrynn Jacques DE Roche, San Jose, CA (US);
Pi Sheng Chang, San Jose, CA (US);
Glen Weaver, San Jose, CA (US);
Sumant Ranganathan, Saratoga, CA (US);
Federico Santiago Cattivelli, Newport Beach, CA (US);
Tianhao Li, Tustin, CA (US);
Bhupesh Kharwa, San Ramon, CA (US);
Satish Vithal Joshi, Cupertino, CA (US);
Kerrynn Jacques de Roche, San Jose, CA (US);
Pi Sheng Chang, San Jose, CA (US);
Broadcom Corporation, Irvine, CA (US);
Abstract
Control circuitry for a touch panel includes a touch panel interface, a memory comprising touch positioning logic, and a controller in communication with the memory and the touch panel interface. The controller is operable, when the touch positioning logic is executed, to perform selected processing of the touch panel, including scanning a touch panel and determining a touch panel blob resulting from a touch, obtaining blob characteristics of the touch panel blob, and determining a position of the blob relative to the touch panel based on the blob characteristics. The blob characteristics can be adjusted to more accurately position the blob in circumstances where the blob is located near the edge of the touch panel, is in close proximity to another blob, or when the touch panel has variation in the received signal noise.