Dynamic information storage or retrieval – Binary pulse train information signal – Binary signal gain processing
Patent
1986-06-25
1989-05-30
Faber, Alan
Dynamic information storage or retrieval
Binary pulse train information signal
Binary signal gain processing
369 48, 369124, 360 39, G11B 700, G11B 509
Patent
active
048357596
ABSTRACT:
When recording domains are formed locally on a recording medium and information is recorded and reproduced by using rise and fall in a reproduced waveform obtained from the recording domains as data, timing patterns indicating start of demodulation are recorded for the lead-edge and the tail-edge of the recording domains, respectively; time interval between the timing signal for starting demodulation detected from the rise in the reproduced waveform and the timing signal for starting demodulation detected from the fall in the reproduced waveform is detected; time shifts of the signals detected from the lead-edge and the tail-edge of the recording domains succeeding the timing patterns for starting demodulation by using the time interval thus detected; and the information is stably detected as time sequential data having no jitter.
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patent: 4558441 (1985-12-01), Yokota et al.
patent: 4566091 (1986-01-01), Gerard et al.
patent: 4583211 (1986-04-01), Nishikawa et al.
patent: 4607295 (1986-08-01), Uno
patent: 4612586 (1986-09-01), Sordello et al.
patent: 4646103 (1987-02-01), Sugiyama et al.
Maeda Takeshi
Saito Atsushi
Shigematsu Kazuo
Sugiyama Hisataka
Takasugi Wasao
Faber Alan
Hitachi , Ltd.
Sachar Surinder
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