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:
Jul. 04, 2006
Filed:
Nov. 09, 2000
Maurice Bellanger, Paris, FR;
Tich Dao, Cupertino, CA (US);
Maurice Bellanger, Paris, FR;
Tich Dao, Cupertino, CA (US);
Other;
Abstract
An emitter converts a serial input data stream into a set of parallel substreams. An OQAM modulator () receives and supplies each substream to an input of a synthesis filter bank (). Synchronization input(s) of the filter bank receive an OQAM signal that carries a data sequence. This sequence contains frame, superframe and hyperframe synchronization patterns, and specifies the number of bits allocated to each subchannel. A receiver () includes an analysis filter bank () that decomposes the multicarrier signal into a set of elementary signals for each subchannel. A synchronizing processing block () receives output(s) of the filter bank for synchronization subchannel(s). The block () includes a first cascade of blocks that control receiver sampling times, and a second cascade of blocks that extract synchronization patterns and subchannel bit assignment data. Other filter bank outputs are each coupled to a cascade subchannel equalizer () followed by a data extractor () and a parallel-to-serial converter ().