EP0306151A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Fast speed reproduction system for a digital disc
Assignee: Toshiba Corp
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Filing: 1988-08-05
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Granted: —
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Expires: 2008-08-05
Abstract
Abstract A digital disc reproduction system including disc reproducing mechanism section (12) for driving a disc and reading the disc, a signal processing means (14) for servo controlling the disc reproducing mechanism section (12) and for processing signals obtained from the disc reproducing mechanism section (12), a clock generator means (13) for generating a plurality of different frequency clocks and for selectively supplying the different frequency clocks to the signal processing means (14).
Inventors
- 👤 Yo Yoshioka
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-27 11:43
CPC Classifications
G; G11; G11B; G11B19/00; G11B19/20; G11B19/28; G11B20/00; G11B20/10; G11B27/00; G11B27/005; G11B27/02; G11B27/022; G11B27/028; G11B27/031; G11B2220/00; G11B2220/20; G11B2220/21; G11B2220/213; G11B2220/25; G11B2220/2537; G11B2220/2545; G11B2220/2587; G11B2220/90; G11B27/024
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
86 words
A digital disc reproduction system comprising a disc reproducing mechanism section (12) for driving a disc (18) and reading the disc (18) and a signal processing means (14) for servo controlling the disc reproducing mechanism section (12) and for processing signals obtained from the disc reproducing mechanism section (12), characterized in that the system further comprises a clock generator means (13) for generating a plurality of different frequency clocks, the clock gnerator means (13) selectively supplying the different frequency clocks to the signal processing means (14).
Claim 2
Dependent Claim
86 words
A digital disc reproduction system comprising a disc reproducing mechanism section (12) for driving a disc (18) and reading the disc (18) and a signal processing means (14) for servo controlling the disc reproducing mechanism section (12) and for processing signals obtained from the disc reproducing mechanism section (12), characterized in that the system further comprises a clock generator means (13) for generating a plurality of different frequency clocks, the clock gnerator means (13) selectively supplying the different frequency clocks to the signal processing means (14).
Claim 3
Dependent Claim
38 words
A digital disc reproduction system of claim 1 wherein the clock generator means includes a clock generator (14) for generating a prescribed frequency clock and a frequency divider (21) for dividing the frequency of the prescribed frequency clock.
Claim 4
Dependent Claim
24 words
A digital disc reproduction system of claim 2 further comprises a recording means (11) for recording signals obtained by the signal processing means (14).
Claim 5
Dependent Claim
34 words
A digital disc reproduction system of claim 3 further includes a synchronous means (22) for operating the recording means (11) in synchronous with a selected clock supplied from the clock signal generating means (13).
Claim 6
Dependent Claim
57 words
A digital disc reproduction system of claim 1 wherein the digital signal processing means includes a tacking servo control means (41) for controlling a pickup means (25) of the disc reproducing mechanism section (12), the response characteristics of the tacking servo control means (41) being controlled with the selected clock supplied from the clock generator means (13).
Claim 7
Dependent Claim
53 words
A digital disc reproduction system of claim 1 wherein the digital signal processing means includes a signal amplifier means (32) for amplifying signals obtained by the disc reproducing mechanism section (12), the frequecny band characteristics of the amplifier means (32) being controlled with the selected clock supplied from the clock generator means (13).
References Cited (Backward Citations)
No citation records indexed.
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