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:
Aug. 10, 1999
Filed:
Jun. 18, 1997
Reuven Meidan, Hasharon, IL;
Meir Ariel, Tel Aviv, IL;
Motorola, Inc., Schaumburg, IL (US);
Abstract
A syndrome-based channel quality or message structure determiner (160) uses syndrome vectors to estimate the quality of a received signal in a variable message structure communication system. A digital signal from analog-to-digital converter (150) is separated into multiple branching paths, one for each potential message structure type. In a single path, a digital demodulator (221) demodulates the digital signal to produce a demodulated received signal. A deinterleaver (222) deinterleaves the demodulated received signal, and a symbol-by-symbol detector (2231) hard-decision detects the deinterleaved signal. For each hard-decision vector, at least one syndrome calculator (2241) calculates a syndrome vector. The syndrome vector is analyzed by a syndrome error estimator (2251) having an associated syndrome pattern memory (2271). A comparator (260) analyzes error counter totals from each syndrome error estimator.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile