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. 12, 2005
Filed:
May. 29, 2002
Jong Chul YE, Croton-on-Hudson, NY (US);
Yingwei Chen, Briarcliff Manor, NY (US);
Jong Chul Ye, Croton-on-Hudson, NY (US);
Yingwei Chen, Briarcliff Manor, NY (US);
Koninklijke Philips Electronics N.V., Eindhoven, NL;
Abstract
A scalable decoder system having a decoder reconstruction system, wherein the decoder reconstruction system comprises: an estimation algorithmfor estimating a lost discrete cosine transform (DCT) coefficient, which incorporates the quantization noise of previous enhancement layer data into the expectation, wherein the estimation algorithm includes a density distribution dependent on at least one unknown parameter {circumflex over (α)}; and a parameter estimation algorithm for estimating {circumflex over (α)}according to the equation:wherein bdenotes each of a set of quantizer decision levels l, and {circumflex over (P)}is the sum of a set of a normalized frequency of occurrences of data quantized to each quantizer decision level 1,2, . . . , l.
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