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:
May. 24, 2005
Filed:
Apr. 04, 2002
Yan Zhong, San Jose, CA (US);
Lin Yang, Fremont, CA (US);
Legend Silicon Corporation, Fremont, CA (US);
Abstract
A method for efficient decoding of block product code format signals, using a (2)QAM signal constellation for mapping of a received signal, with p=2, 3, 4, 5, . . . A received signal value r, corresponding to an x=I or x=Q coordinate, is converted to a p-tuple (B, . . . , B) corresponding to a 'closest' I-coordinate or Q-coordinate numerical value, and a p-stage algorithm is applied to the signal values rand to the p-tuples (B, . . . , B) to determine a p-tuple (r, . . . , r) representing a decoded p-bit value for the received signal value r. Depending upon a communication channel parameter Eb/N0 and the bit error ratio BER associated with each of the p bits, the received signal values rmay be suitable for some or all communications activities (e.g., HDTV, SDTV, mobile comm).