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.

Date of Patent:
Apr. 30, 1996

Filed:

Jun. 15, 1993
Applicant:
Inventors:

Hiromasa Ikeyama, Kanagawa, JP;

Takashi Asaida, Kanagawa, JP;

Assignee:

Sony Corporation, Tokyo, JP;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H03M / ;
U.S. Cl.
CPC ...
341 61 ;
Abstract

A rate converter for converting data rate is adapted to hold, at an output clock rate, by using a plurality of latch circuits, respective signals from the output stages of a shift register operative at an input clock rate to multiply, at the output clock rate by using a plurality of multipliers, held signals from the latch circuits by filter coefficients that a plurality of coefficient generators sequentially generate to add the multiplied outputs by using an adder to provide a rate converted output signal. Thus, this rate converter makes it possible to carry out rate conversion by a single digital filter without necessity of digital filters operative at a clock rate of the least common multiple of the input clock rate and the output clock rate.


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