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:
Aug. 26, 1997

Filed:

Nov. 01, 1995
Applicant:
Inventors:

Andrea Finotello, Settimo Torinese, IT;

Maurizio Paolini, Valenza, IT;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04J / ;
U.S. Cl.
CPC ...
370503 ; 370509 ; 348423 ; 348512 ; 348515 ;
Abstract

A decoder for audio signals belonging to audio-visual streams coded in accordance with standard ISO/IEC 11172 is provided. The decoder has a presentation unit (UP) which is controlled by a first and a second clock signal, depending on the desired sampling rate, and is associated to device for (SAV) managing audio-video synchronization. The latter device starts the presentation of output data by comparing a first timing signal (SCR), representative of a system clock signal, and a second timing signal (PTS), representative of a correct instant of data presentation, independently generate the two clock signals (CLK24, CLK22) and corrects the signal corresponding to the desired sampling rate with the use of a feedback circuit which includes a digital filter (FD).


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