KR890004314A - High speed recording and playback device using disc playback system - Google Patents

Abstract

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Description

High speed recording and playback device using disc playback system

As this is a public information case, the full text was not included.

1 is a block diagram showing a first embodiment of a fast recording and reproducing apparatus using the disc reproducing system of the present invention. 2 is a block diagram showing a second embodiment of the above. 3 is a block diagram showing a conventional system configuration for recording a playback signal of a compact disc onto a tape;

Claims (7)

A disc motor 23 for rotating the disc, an optical pickup 21 for reading digital data recorded on the disc, and a clock generator for generating a clock signal of a predetermined frequency (17), in accordance with the clock signal given by the clever generator 17, rotation control of the disc motor 23, movement control of the optical pickup 21, and predetermined digital processing of the read digital data of the optical pickup 21; In a disc reproducing system comprising a signal processing unit (20) for performing the following operations, a divider (18) and a clock generator (17) for dividing a first clock signal given by the clock generator (17) to output a second clock signal. And a switching means (19) for selectively applying to the signal processing section (20) the first clock signal given by the second clock signal and the second clock signal given by the dividing means (18). 2. The clutch generator according to claim 1, wherein said switch means (19) is controlled and said clutch generator And a microcomputer (26) for selecting the first clock signal given by (17) and the second clock signal given by the dividing means (18). 3. The disc reproducing system according to claim 2, wherein said signal processing section (20) comprises a first servo means suitable for said first clock signal and a second servo means suitable for said second clock signal. 4. The microcomputer 26 according to claim 3, wherein the microcomputer 26 performs the control of the switch means 19 and the selective control of the first servo means and the second servo means in the signal processor 20. Disc playback system, characterized in that. A disc motor 23 for rotating the disc, an optical pickup 21 for reading the digital data recorded on the disc, and a clock generator for generating a clock signal of a predetermined frequency (17), according to the clock signal given by this clock generator 17, the rotation control of the said disk motor 23, the movement control of the optical pickup 21, and the predetermined digital process with respect to the digital data read by the optical pickup 21. And a signal processing section (20) for converting to a corresponding analog signal, and a recording means (25) for recording an analog signal given by the signal processing section (20), wherein the clock recording apparatus employs a disc reproducing system. A divider means 18 for dividing the first clock signal given by the generator 17 and outputting a second clock signal; A switch means 19 for selectively applying a clock signal to the signal processor 20, the first control means for controlling the switch means 19 and given by the clock generator 17; Disc reproducing, characterized in that a microcomputer (26) is provided for interlocking a clock signal and the second clock signal given by the dividing means (18) and selecting a recording speed of the recording means (25). Playback recording apparatus using the system. 6. The disc reproducing system according to claim 5, wherein said signal processing section (20) comprises a first servo means suitable for said first clock signal and a second servo means suitable for said second clock signal. 7. The microcomputer 26 according to claim 6, wherein the microcomputer 26 performs the control of the switch means 19 and the selective control of the first servo means and the second servo means in the signal processing section 20. Disc playback system, characterized in that. ※ Note: The disclosure is based on the initial application.