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:
Nov. 16, 1999
Filed:
Mar. 12, 1997
Sony Corporation, Tokyo, JP;
Abstract
(M-N) 0 data are inserted for every N data of the f.sub.SL input data by an interpolation circuit 20 for generating f.sub.SH rate data, while filter coefficients are sequentially generated by M coefficient generators 30A to 30D at the f.sub.SH rate. A register postfix type transversal filter 40 effectuates up rate conversion of N:M (N<M) of generating f.sub.SH rate output data from f.sub.SL rate input data. The transversal filter 40 includes M multipliers 41A to 41D for multiplying the f.sub.SH rate data generated by the interpolation circuit 20 with the filter coefficients sequentially applied by the coefficient generators 30A to 30D and each (M-1) delay circuits 42A to 42C and additive units 43A to 43C for delaying product outputs of the multipliers 41A to 41D by unit time delay and summing the delayed product output together.
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