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:
Dec. 03, 2013
Filed:
Feb. 10, 2011
Camille Chen, Cupertino, CA (US);
Lei LI, Cupertino, CA (US);
Chris Zimmermann, San Jose, CA (US);
Michael J. Giles, San Jose, CA (US);
Jaime Tolentino, Sunnyvale, CA (US);
Chris Hartman, San Jose, CA (US);
Arthur Lin, Cupertino, CA (US);
Camille Chen, Cupertino, CA (US);
Lei Li, Cupertino, CA (US);
Chris Zimmermann, San Jose, CA (US);
Michael J. Giles, San Jose, CA (US);
Jaime Tolentino, Sunnyvale, CA (US);
Chris Hartman, San Jose, CA (US);
Arthur Lin, Cupertino, CA (US);
Apple Inc., Cupertino, CA (US);
Abstract
Methods and apparatus for reduction of interference between a plurality of wireless interfaces. In one exemplary embodiment, a device having a first (e.g., Wi-Fi) interface and a second (e.g., Bluetooth) interface monitors interference between its interfaces. A reduction in transmit power of the Wi-Fi module causes a disproportionately larger reduction in undesirable interference experienced at the Bluetooth antennas. For example, when the Bluetooth interface detects interference levels above acceptable thresholds, the Wi-Fi interface adjusts operation of one or more of its transmit chains based on various conditions such as duty cycle, Received Signal Strength Indication (RSSI), etc. Various embodiments of the present invention provide simultaneous operation of WLAN and PAN interfaces, without requiring time division coexistence, by reducing power on a subset of interfering antennas.