JPH0896487A - Dubbing device - Google Patents

Abstract

PURPOSE: To record an ID used for music selection onto an MD based on control information from a CD when music information on the CD is dubbed onto the MD. CONSTITUTION: A music on a CD 1 designated by using an operation section 9 at the side A of a CD reproduction device is reproduced by an optical pickup 3, the reproduced signal is amplified by an amplifier circuit 4 and separated and demodulated into digital music information and digital control information by signal processing circuit 5. The control information is given to a control section 6, which controls a motor 2 and the optical pickup through a servo circuit 7 and the control information is given to a control information detection section 13 at an MD recorder side B. The separated music information is given to a signal processing circuit 10 at the MD recorder side B, control information from the control information detection section is added to the music information, the signal processing circuit 10 applies data compression and modulation to the resulting information for the recording onto the MD, the processed signal is amplified by an amplifier circuit 11 and the amplified signal is given to an MD recording section 12. The MD recording section 12 is driven by an MD drive section 15 with a signal from a control section 14 based on a signal from the control information detection section to record the signal from the signal processing circuit 10.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dubbing device,
The present invention relates to dubbing of music information of D (compact disc) onto an MD (mini disc) for recording and reproduction.

[0002]

2. Description of the Related Art Dubbing from a CD to an MD or the like with a digital signal is permitted only once by a serial management system, and the MD can be recorded on the CD without degrading the high-quality music information recorded with the digital signal. Although it can be dubbed, only the music information can be dubbed, and the information necessary for selecting songs, etc. must be written by the user during or after the dubbing (TOC = table of the innermost portion of the disc). Content =
It is possible to write song titles in the area). The MD can be dubbed without losing the high sound quality characteristic of the CD, and the music information is compressed and recorded by the ATRAC (adaptive transform acoustic coding) method, so that the volume is smaller than that of the CD and is reproduced by a portable device. However, in order to be able to select songs in the same way as with CDs, there is a problem in that information must be recorded during dubbing as described above.

[0003]

In view of the above-mentioned problems, the present invention adds the control information output during the reproduction of the CD to the music information and records it in the MD.
It is to be able to select a music piece to be reproduced and the like in the same manner as the reproduction of.

[0004]

In order to solve the above-mentioned problems, the present invention provides a dubbing apparatus for reproducing music information recorded on a first recording medium and recording it on a second recording medium. Drive unit for driving music and reproducing music information, a reproduction signal processing circuit for processing the information reproduced from the first recording medium and separating / demodulating it into music information and control information, and control by the reproduction signal processing circuit A reproduction unit including a first control unit for controlling the first drive unit based on information;
A control information detecting unit for detecting control information from the reproducing unit, and a recording for performing modulation or the like for adding the control information from the control information detecting unit to the music information from the reproducing unit to record on the second recording medium. A signal processing circuit, a recording unit that records a signal from the recording signal processing circuit on a second recording medium, a second drive unit that drives the recording unit, and a second drive based on control information from the control information detection unit. The present invention provides a dubbing device including a recording unit including a second control unit that controls the unit.

[0005]

With the above construction, in the dubbing apparatus according to the present invention, the information reproduced from the CD is separated and demodulated into music information and control information by the reproduction signal processing circuit,
Each is sent to the MD recording side. The control information detector on the MD recording side detects the control information from the CD reproducing side, applies it to the recording signal processing circuit, adds it to the music information from the CD reproducing side, and performs necessary modulation etc. to record it on the MD. .

[0006]

Embodiments of the dubbing apparatus according to the present invention will be described in detail below with reference to the drawings. FIG. 1 is a block diagram of essential parts of an embodiment of a dubbing apparatus according to the present invention. In the figure, (a) is the CD reproducing side and (b) is the MD recording side.

On the CD reproducing side (a), 1 is a CD, 2 is a motor, and 3 is an optical pickup for reading information from the CD 1.
An amplifier circuit 4 amplifies a signal from the CD 1 by the optical pickup 3. A signal processing circuit 5 separates and demodulates the signal from the amplifier circuit 4 into music information and control information. 6
Is a control unit that controls the motor 2 and the optical pickup 3 via the servo circuit 7 based on the control information from the signal processing circuit 5. A display unit 8 displays the reproduction state of the CD 1 based on the control information from the signal processing circuit 5, for example, the number of the music piece being reproduced or the playing time. An operation unit 9 is used to input the designation or order of music to be reproduced.

On the MD recording side (B), 10 is a signal processing circuit,
Control information, which will be described later, is added to the music information from the CD reproducing side (a), required data compression and modulation are performed, amplified by the amplifier circuit 11, and recorded in the MD through the MD recording unit 12.
Reference numeral 13 is a control information detection unit that detects control information (subcode information or the like) from the CD reproducing side (a). A control unit 14 inputs control information to be added to the music information to the signal processing circuit 10 based on a signal from the control information detection unit 13 and outputs M
The MD is driven via the D drive unit 15. Reference numeral 16 denotes a display unit, which is based on a signal from the control unit 14 and records the MD, for example,
Display the track number or recording time during recording. An operation unit 17 is used to input MD recording specifications and the like. A voice output unit 18 outputs the music information processed by the signal processing circuit 10 as a sound.

Next, the operation of the dubbing apparatus according to the present invention will be described. The optical pickup 3 moves to the TOC area of the CD 1 by a signal from the servo circuit 7 based on a signal from the control section 6 when the power of the apparatus is turned on or when the CD 1 is loaded, and reads recorded control information and the like. This signal is appropriately amplified by the amplifier circuit 4, demodulated by the signal processing circuit 5, input to the control unit 6, recorded in a built-in memory, and simultaneously displayed by the display unit 8. With reference to this display, the music piece to be reproduced and the order of reproduction are designated by the operation unit 9. The control unit 6 collates and calculates the track number of the designated music with the built-in memory data, and the servo circuit 7 causes the optical pickup 3 to operate.
To move to the beginning of the track with the corresponding track number and play the song. The reproduced signals are digital music information and control information. These signals from the optical pickup 3 are appropriately amplified by the amplifier circuit 4, input to the signal processing circuit 5, and separated / demodulated into control information and music information. The separated control signals, that is, the track number (music number), the time of the music head position, the last track number, the total playing time, etc., are input to the control unit 6, and the motor 2 is transmitted via the servo circuit 7 based on this control information. And the position of the optical pickup 3 are controlled, and the music number and performance (elapsed) time are displayed on the display unit 8.

The control unit 6 sends a signal for starting the reproduction of the CD 1 to the M
D is sent to the recording side (B), detected by the control information detection unit 13, and this signal is input to the signal processing circuit 10 via the control unit 14 to compress the data for recording on the MD and the required modulation, etc. Is input to the MD recording unit 12 via the amplifier circuit 11, and at the same time, the MD recording unit 12 is driven by the MD driving unit 15 via the control unit 14 based on the signal from the control information detecting unit 13.
Is started to start the recording operation of the MD, and as shown in FIG. 2, an ID indicating the start of recording is recorded at the beginning of the track.

The digital music information reproduced from the CD 1 and separated / demodulated by the signal processing circuit 5 is input to the signal processing circuit 10 on the MD recording side (b), and the control information is sent from the control section 6 to the control information detection section. Enter in 13. Control information detector 13
Detects sub-code information such as the track number (song number) from the input signal and inputs it to the display unit 16 via the control unit 14 to display it. At the same time, the signal processing circuit 10 via the control unit 14
Then, the signal processing circuit 10 adds the control information applied via the control unit 14 to the music information from the CD reproducing side (a), compresses the data for recording on the MD, and performs the required modulation. Etc., and appropriately amplify it in the amplifier circuit 11, and MD recording unit
Enter 12 The MD recording unit 12 is driven via the MD drive unit 15 by the signal from the control unit 14 based on the control signal from the control information detection unit 13, and records the signal from the amplifier circuit 11. The music information being recorded is input to the audio output unit 18,
It is converted to an analog signal and output as sound.

[0012]

As described above, according to the dubbing apparatus of the present invention, the music information reproduced from the CD and recorded (dubbed) on the MD has the ID indicating the beginning of the music piece. Since the subcode information such as the song number and the playing time is recorded, the dubbed MD is convenient because it can be used to select songs as in the case of playing a CD.

[Brief description of drawings]

FIG. 1 is a block diagram of essential parts of an embodiment of a dubbing device according to the present invention.

[Fig. 2] ID recorded at the beginning of music information recorded in MD
FIG.

[Explanation of symbols]

 B CD playback side Ro MD recording side 1 CD 3 Optical pickup 5 Signal processing circuit 6 Control section 7 Servo circuit 8 Display section 10 Signal processing circuit 12 MD recording section 13 Control information detection section 14 Control section 15 MD drive section 16 Display section

Claims (4)

[Claims] 1. A dubbing apparatus for reproducing music information recorded on a first recording medium and recording the music information on a second recording medium,
A first drive unit for driving the first recording medium to reproduce music information and the like, a reproduction signal processing circuit for separating and demodulating the information reproduced from the first recording medium into music information and control information, and a reproduction signal processing circuit The reproduction information including the first control unit that controls the first drive unit based on the control information, the control information detection unit that detects the control information from the reproduction unit, and the music information from the reproduction unit. A recording signal processing circuit that adds control information from the control information detecting unit and performs modulation or the like for recording on the second recording medium; and a recording unit that records the signal from the recording signal processing circuit on the second recording medium, A dubbing device comprising a second driving unit that drives the recording unit and a recording unit that includes a second control unit that controls the second driving unit based on control information from the control information detection unit. 2. The reproduction signal processing circuit outputs the music information reproduced from the first recording medium as a digital signal, and the recording signal processing circuit processes the digital audio information from the reproduction signal processing circuit. The dubbing device according to claim 1. 3. The dubbing apparatus according to claim 1, wherein the control information output from the reproduction signal processing circuit and detected by the control information detecting unit is subcode information such as a track number and a playing time. 4. The dubbing apparatus according to claim 1, wherein the first recording medium is a compact disc and the second recording medium is a mini disc.