Time base correcting apparatus

Details Time base correcting apparatus Time base correcting apparatus

1983-02-10

1985-01-08

Canney, Vincent P.

Dynamic magnetic information storage or retrieval

Converting an analog signal to digital form for recording;...

G11B 500

Patent

active

044929897

ABSTRACT:
A time base correcting apparatus is disclosed which is capable of correcting time base errors contained in a digital signal supplied thereto in the form of successive data blocks with each data block including plural data words. Each data block includes therein at least plural data words and a block address circulating with a predetermined phase relation relative to a certain reference signal. A memory is provided, having plural addressable storage locations, each adapted to store a respective data block. A write-in address to identify the particular storage locations is generated according to data block addresses and read-out addresses. The write-in address is varied by a lock phase mode signal indicative of a phase relation at which an incoming digital signal is locked to a reference signal so that notwithstanding the phase mode in which the digital signal is locked to the reference signal, the correction ability of the time base correcting apparatus can be prevented from being lowered.

REFERENCES:
patent: 4398224 (1983-08-01), Watanabe

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