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:
Apr. 29, 2003
Filed:
Sep. 07, 1999
David L. Henderson, Austin, TX (US);
Spectral Logic Design, Austin, TX (US);
Abstract
An apparatus and method are provided for performing both forward and inverse Haar transforms of a sequence of n-bit data samples. The forward Haar transform apparatus has sum-and-truncate logic and a plurality of coefficient generators. The sum-and-truncate logic generates a plurality of n-bit intermediate terms. The plurality of coefficient generators is coupled to the sum-and-truncate logic. The plurality of coefficient generators generate a plurality of n+1-bit spectral coefficients. The inverse Haar transform apparatus has index signal and inverse transform logic. The index signal indicates a specific n-bit sample, the specific n-bit sample being one of a sequence of n-bit samples corresponding to the Haar transform. The inverse transform logic is coupled to the index signal. The inverse transform logic computes the specific n-bit sample, where the specific n-bit sample is derived from selected n+1-bit spectral coefficients.
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