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:
Feb. 20, 2007
Filed:
Sep. 20, 2002
Jean Gobert, Maisons-Alfort, FR;
Jean Gobert, Maisons-Alfort, FR;
Koninklijke Philips Electronics N. V., Eindhoven, NL;
Abstract
The present invention relates to a filter circuit for a set of original data (X–X) able to implement in series the steps of discrete transformation (DCT), correction (ZER) of odd transformed data and inverse discrete transformation (IDCT). The filter circuit takes advantage of the fact that the paths corresponding to the even and odd transformed data are completely separate with the exception of a first processing stage (ST) of the discrete transformation and a last processing stage (ST) of the inverse discrete transformation in order to connect a first half of the data issuing from the first stage to the last processing stage. The implementation of the filter circuit is thus simplified, both making the circuit less expensive and giving it a lower power consumption. For optimized implementation, the filter circuit functions in differential mode.