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. 11, 2007
Filed:
Dec. 22, 2003
Guttorm Ringstad Opshaug, Menlo Park, CA (US);
Matthew Rabinowitz, Los Altos Hills, CA (US);
Jimmy K. Omura, San Francisco, CA (US);
Guttorm Ringstad Opshaug, Menlo Park, CA (US);
Matthew Rabinowitz, Los Altos Hills, CA (US);
Jimmy K. Omura, San Francisco, CA (US);
Rosum Corporation, Mountail View, CA (US);
Abstract
The present invention provides a method and system for generating reference signals that, when correlated with synchronization code signals or other components of broadcast TV signals, yield minimal sidelobes, produce large main peaks, and have minimal couplings to high frequency noise and low frequency disturbance signals. The present invention also provides a method and system for accurate position determination utilizing broadcast TV signals by employing reference signals with improved correlation characteristics of minimal sidelobes, minimal coupling to high frequency noise, minimal coupling to low frequency disturbance signals and a maximal main correlation peak.