Source: http://www.google.com/patents/US7155383?dq=5,867,764
Timestamp: 2016-02-09 18:05:01
Document Index: 193627856

Matched Legal Cases: ['art, 1967', 'art 7', 'art 7', 'art 3', 'art 7', 'Application No. 03', 'Application No. 03']

Patent US7155383 - Quantization matrices for jointly coded channels of audio - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More »Sign inPatentsQuantization matrices facilitate digital audio encoding and decoding. An audio encoder generates and compresses quantization matrices; an audio decoder decompresses and applies the quantization matrices. For example, the audio encoder includes a multi-channel transformer operable to output multi-channel...http://www.google.com/patents/US7155383?utm_source=gb-gplus-sharePatent US7155383 - Quantization matrices for jointly coded channels of audioAdvanced Patent SearchPublication numberUS7155383 B2Publication typeGrantApplication numberUS 11/061,012Publication dateDec 26, 2006Filing dateFeb 17, 2005Priority dateDec 14, 2001Fee statusPaidAlso published asUS6934677, US7143030, US7249016, US7930171, US8428943, US20030115051, US20050149323, US20050149324, US20050159947, US20080015850, US20110166864, US20130208901Publication number061012, 11061012, US 7155383 B2, US 7155383B2, US-B2-7155383, US7155383 B2, US7155383B2InventorsWei-ge Chen, Naveen Thumpudi, Ming-Chieh LeeOriginal AssigneeMicrosoft CorporationExport CitationBiBTeX, EndNote, RefManPatent Citations (39), Non-Patent Citations (53), Referenced by (30), Classifications (13), Legal Events (3) External Links: USPTO, USPTO Assignment, EspacenetQuantization matrices for jointly coded channels of audio
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Q [ c ] [ d ] = ∑ b = b lowd b highd E ⋓ [ b ] � Card { B [ b ] ⋂ B [ d ] } Card { B [ d ] } , ( 17 ) where B[d] is the set of coefficient indices that represent frequencies within quantization band d, and B[b] ∩B[d] is the set of coefficient indices in both B[b] and B[d] (i.e., the intersection of the sets).
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