Synchronizer for sampling frequency

Abstract

Abstract PURPOSE: To synchronize a sampling frequency with any transmission line clock frequency by transmitting information for the synchronization between sampling frequencies at the transmission side and reception side regardless of the data frame of a transmission line. CONSTITUTION: At the transmission side, the 1st comparing method 5 compares transmission sampling clock frequency (f s ) with transmisstion-line clock frequency (f e ) to obtain the relation between (f s ) and (f e ) as relative information ΔS, which is transmitted together with other information to transmission line 10 vial buffer memory 7. At the reception side, on the other hand, relative information ΔS is detected 18, and the 2nd comparing method 15 compares reception clock frequency (fR) with transmisstion-line clock frequency (f e )to obtain the relation between (fR) and (f e ) as relative information ΔR. Then, reception sampling frequency (fR) is so controlled that relative information ΔS will agree with ΔR COPYRIGHT: (C)1979,JPO&Japio

Inventors

• 👤 Kazumoto Iinuma

Bibliographic Details