Method and apparatus for recording or reproducing information on

Details Method and apparatus for recording or reproducing information on Method and apparatus for recording or reproducing information on

1992-08-17

1994-10-04

Young, W. R.

Dynamic information storage or retrieval

Binary pulse train information signal

Binary signal gain processing

369 48, 369 54, 369124, G11B 7007

Patent

active

053532716

ABSTRACT:
A method for recording or reproducing information on or from a recording medium, the method capable of reproducing serial data on the basis of signals derived on each of front edges or each of rear edges of a plurality of pieces of recorded information on the recording medium, includes the steps of reproducing bit-synchronization signals corresponding to each ones of the front and rear edges from signals derived on the front and rear edges alternately provided in the recorded information, the bit-synchronization signals having individual phases but the same frequency as each other, switching the bit-synchronization signal for each of the front edges into the other bit-synchronization signal for each of the rear edges or vice versa after a predetermined time each time the bit-synchronization signal is detected, synthesizing the bit-synchronization signals so that a phase of the synthesized bit-synchronization signal constantly matches to phases of the front and rear edges to be detected, and sequentially reproducing the serial data from signals derived on a lot of the front and rear edges by using the synthesized bit-synchronization signal.

REFERENCES:
patent: 4646103 (1987-02-01), Sugiyama et al.
patent: 4835759 (1989-05-01), Saito et al.
patent: 4866692 (1989-09-01), Saito et al.

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