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:
Oct. 21, 2008
Filed:
Apr. 19, 2001
Timothy M. Schmidl, Dallas, TX (US);
Anand G. Dabak, Plano, TX (US);
Mohammed Nafie, Richardson, TX (US);
Oren E. Eliezer, Kfar-Saba, IL;
Timothy M. Schmidl, Dallas, TX (US);
Anand G. Dabak, Plano, TX (US);
Mohammed Nafie, Richardson, TX (US);
Oren E. Eliezer, Kfar-Saba, IL;
Texas Instruments Incorporated, Dallas, TX (US);
Abstract
A frequency hopping system such as a Bluetooth system () can reduce the number of RF channels it hops during a normal hopping sequence cycle providing for a Reduced Hopping Sequence (RHS). A communication unit operating in the system such as the Bluetooth master unit () determines if any of the RF channels has interference. If any of the channels has interference, the Bluetooth master sends a message to one or more slave units () informing them of which channels will be removed from the hopping sequence due to potential interference problems. The units will then use the new RHS for their transmissions, thus avoiding the interference problems (e.g., both avoiding interference in the system's receivers and avoiding creating interference on frequencies that are already occupied by other neighboring systems).