Dynamic information storage or retrieval – Binary pulse train information signal – Binary signal gain processing
Patent
1997-10-10
1999-11-30
Tran, Thang V.
Dynamic information storage or retrieval
Binary pulse train information signal
Binary signal gain processing
369 47, 369124, G11B 700
Patent
active
059954655
ABSTRACT:
A digital signal reproducing apparatus has the clock signal generating device 24 having: a frequency setting device 12 for setting a desired frequency on the basis of the predetermined linear velocity and a radius position of a pickup 1; a first frequency difference signal generating device 242 for generating a binary signal E corresponding to a difference between the desired frequency fsd and the frequency fs of the sample clock signal A to be used for reproducing a reproduction digital signal; a second frequency difference signal generating device 243 for generating a pulse signal L corresponding to a difference between the frequency based on the reproduction digital signal and the frequency fs of the sample clock signal A; a phase difference signal generating device 244 for generating a pulse signal Y corresponding to a difference between the phase based on the reading signal read from the disc and the phase of the sample clock signal A; and a synchronizing device 24 for synchronizing the frequency fs and phase of the sample clock signal A with the frequency of the reading signal on the basis of the binary signal E, the pulse signal L and the pulse signal Y.
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patent: 5528574 (1996-06-01), Takeuchi et al.
patent: 5535183 (1996-07-01), Miura et al.
patent: 5663945 (1997-09-01), Hayashi et al.
patent: 5677802 (1997-10-01), Saiki et al.
patent: 5680380 (1997-10-01), Taguchi et al.
Hayashi Hideki
Kobayashi Hideki
Umezawa Masaru
Pioneer Electronic Corporation
Tran Thang V.
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