JPH0191305A - Dubbing device - Google Patents

Abstract

PURPOSE:To automatically set fade-out when it comes to set time, and to realize efficient dubbing by setting possible recording time for one side portion of a cassette tape beforehand. CONSTITUTION:The recording time of one side of the cassette tape % is recorded beforehand in a RAM by operating a tape input setting key TM. When a dubbing switch DS is operated, the reproduced signal a compact disk player CDP is recorded, and when it comes to the previously set time, a control part 1 attenuates gradually a digital signal level through an attenuator 2 from an output OUT. Thus, the signal level to be recorded in the tape T is faded out, and when it comes to the terminal end of the tape T, the terminal end detecting part ASO of a cassette mechanism 7 inputs a terminal end signal to the input IN of the control part 1. The control part 1 controls a controller 6 so as to stop or reverse the mechanism 7. Accordingly, the dubbing can be performed efficiently to the full of the possible recording time of the cassette tape.

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Application Field) The present invention relates to a dubbing device for dubbing reproduction signals from a CD player.

(Prior Art) Generally, when dubbing a playback signal from a CD player or the like that plays back music information recorded on a compact disc onto a cassette tape installed in a tape recorder, depending on the cassette tape being used, the end of the tape Also, depending on the content of the song on the source side (length of one song, etc.), blanks may be left unnecessarily near the end of the tape even in automatic program recording by inputting the recordable time of the tape, making it difficult to use an efficient tape. was not used.

(Problems to be Solved by the Invention) With the above-mentioned conventional dubbing device, the track suddenly cuts off near the tape end of the cassette tape, or blanks are left unnecessarily, making efficient use of the tape. had not been done.

The present invention eliminates the above-mentioned problems and provides a dubbing device that efficiently dubs a cassette tape.

[Elements of the Invention] (Means for Solving the Problems) A dubbing device of the present invention includes a CD player that plays back music information etc. recorded in advance on a compact disc, and a cassette into which the playback signal of the CD player is loaded. The recordable time of one part of the tape recorder and the cassette tape attached to the tape recorder is determined in advance by the above C.
It consists of a time playing means for setting the playing time of the CD player which is input to the microcomputer of the D player, and a means for automatically applying a fade-out to the recording signal near the end of the playing time by this means.

(Function) With the means described above, the microcomputer of the CD player determines the performance time that can be recorded on one side of the cassette tape based on the input recordable time of the cassette tape, and starts dubbing onto the cassette tape. When the elapsed playback time of the CD player reaches a preset recordable performance time, the microcomputer gradually attenuates the recording signal to realize fade-out recording.

(Example) Hereinafter, an example of the present invention will be described in detail with reference to the drawings.

In FIG. 1, reference numeral 1 denotes a control section that controls the CD player CDP, and a microcomputer CPU controls the CD player CDP from its output OUT based on a program previously recorded in a memory RAM in accordance with a command input to an input IN of this control section 1. 2 sets the playback key P to the input IN of the control unit 1, and the laser pickup reads the recording information of the compact disc and reattenuates the digital audio data introduced to the input IN under control from the control unit 1. It is an attenuator. 3 is the digital output signal of attenuator 2 at 1ttl
This is a DA converter that performs analog conversion under control from the control unit 1. Reference numeral 4 denotes a low-pass filter for cutting and removing clock noise, etc. contained in the analog output signal of 20 k) tz or more of the analog output signal of the DA converter 3. The output of this low-pass filter 4 is sent to the output terminal via the buffer amplifier 5. Derived to OUT.

When the dubbing start key DS is operated, the microcomputer CPU of the control section 1 drives the controller 6 which controls the cassette mechanism of the cassette tape recorder from the output OUT. The controller 6 of the tape recorder TR section is the capstan motor CM and reel motor RM of the cassette mechanism 7.
, drives the plunger PL that slides the head chassis to the recording position to enter the recording state. The reproduction signal of the CD player led to the output terminal 01JT is superimposed on the oscillation signal of the recording bias oscillator 9 via the recording amplifier 8, and is recorded from the recording head 10 onto the cassette tape 'r.

Here, the tape input setting key TM is operated in advance to record the recording time of one side of the cassette tape T in the memory RAM. At the same time as the dubbing switch key DS is operated, a counter prepared in the memory RAM is counted up, and while the counter is counting, the playback signal of the CD player CDP led to the output terminal OUT is recorded onto the cassette tape T.

When the counter reaches a preset time, the control unit 1 outputs an attenuator command from the output OUT to the control input of the attenuator 2 to gradually attenuate the digital signal level. As a result, the signal level recorded on the cassette tape T is faded out. When the end of the cassette tape T is reached, the end detection section ASO of the cassette mechanism 7 inputs an end signal to the input IN of the control section 1. The control unit 1 has its output OU
The controller 6 is controlled from T, and the cassette mechanism 7 is stopped or reversed based on the mode set in the control section 1 in advance.

The processing operation of the control unit 1 explained in FIG. 1 can be realized by the flowchart in FIG. 2. Hereinafter, in this flowchart, the recordable time on one side of the cassette tape input to the control section 1 is converted into units of time and stored in area T1 of the memory RAM. By operating the dubbing start key DS, the cassette mechanism 7 is set to recording operation and the C
Outputs the output that puts the D player CDP into the playback state. The microcomputer CPU of the control unit 1 counts up a counter T2 prepared on the memory RAM every time one unit of playback time of the CD player CDP passes, and then counts up T1/2 and counter T2 corresponding to one side of the tape. After successive comparisons are made, attenuator data is output to attenuator 2 so that attenuation occurs continuously from the time when a preset attenuation start time T3 is reached, and the amount of attenuation is set to infinity at the point T'+/2T2=O. , stops the cassette mechanism 7 and CD player CDP.

In this way, by storing the recordable time for one side of the cassette tape in advance, it is possible to automatically achieve a fade-out in which the recording signal level of the reproduction signal of the CD player gradually attenuates when the recordable time approaches.

FIG. 3 shows another embodiment of the invention.

In this embodiment, the attenuator is an electronic volume VR that changes an analog value obtained by converting the attenuator into an analog volume.The resistance value of the electronic volume VR is gradually controlled by the output of the control section 1 of the CD player, and is changed by the controlled volume.

This amount of change is applied to the input of the recording amplifier 8, and fade-out is automatically performed. Even in this situation, a fade-out similar to that shown in FIG. 1 can be automatically realized.

In all of the above embodiments, fade-out has been explained, but the control section 1 sets the passage time of the leader section (non-recording section) of the cassette tape in accordance with the time when the cassette mechanism is set to the reverse mode. CD after passing
Fade-in recording that increases the recording signal level of the player can also be realized.

[Effects of the Invention] As described above, according to the dubbing device of the present invention,
Recordable time of cassette tape - allows for efficient dubbing.

[Brief explanation of the drawing]

FIG. 1 is a circuit diagram showing one embodiment of the invention, FIG. 2 is a flowchart explaining the operation of FIG. 1, and FIG. 3 is a circuit diagram showing another embodiment of the invention. CDP...CD player TR...Tape recorder...Control unit TM...Time input setting key DS...Dubbing start key Applicant
Toshiba Corporation Representative Patent Attorney Satoshi Suyama - /CDPCD Printer Figure 1

Claims (1)

[Claims] A CD player that plays music information etc. recorded in advance on a compact disc, a tape recorder that records the playback signal of this CD player onto a cassette tape attached to it, and a recordable time for one side of the cassette tape attached to this tape recorder. A dubbing device comprising: a time playing means for setting a playing time of the CD player by inputting it into a microcomputer of the CD player in advance; and a means for automatically fading out a recording signal near the end of the playing time by this means.