JPH0430712Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] This invention relates to a recording/reproducing device that records and transfers information recorded on a compact disk onto a magnetic tape.

[Conventional technology]

Generally, compact disk (hereinafter referred to as CD)
It has the excellent feature of being able to faithfully record and reproduce information, and can also record an extremely large amount of information, and has been used in the audio field as an alternative to traditional analog signal recording media such as records and magnetic tape. Attention has been paid.

By the way, recently, it has been considered to take advantage of the above-mentioned characteristics of CDs and use CDs as information sources to record and transfer the information recorded on CDs to other recording media such as magnetic tape, or to record and transfer them to other CDs. However, in this case, especially in the case of recording transfer from a CD to a magnetic tape (cassette tape), due to the difference in recording capacity, the magnetic tape reaches the end in the middle of the playback information of the CD, and the information to be transferred is When the audio information is transferred to a magnetic tape, the inconvenience arises that the audio information transferred to the magnetic tape is interrupted midway.

[Problem that the invention attempts to solve]

Conventionally, the playback time of a certain song information recorded on a CD is compared with the remaining recordable time of the magnetic tape, and if it is clear that the former is longer than the latter, the song information on the CD is transferred to the magnetic tape. However, the user must always estimate the remaining recordable time of the magnetic tape. However, if recording ends in the middle of the song,
In addition to returning the playback position of the CD to the beginning of the song, it is necessary to search for the beginning of the incomplete recording on the magnetic tape and erase it, which poses a problem of placing a heavy burden on the user.

[Means for solving problems]

This invention was made with the above points in mind, and includes a CD player that plays back information recorded on a CD by pick-up, and a cassette that records and transfers the information on the CD played by the player onto a magnetic tape. a tape recorder; a tape end detecting means for detecting the end of the tape during recording and transfer; and upon detection of the end of the tape by the detecting means, commanding the player to perform back access so that the pick-up is directed to the beginning of the information being played back on the disk. back access command means for returning back; playback standby control means for controlling the player to pause or stop after the end of the back access due to a delay in the end detection; The recording/reproducing apparatus is equipped with transfer termination processing means for instructing rewinding and then instructing muting recording to erase incomplete recording on the magnetic tape.

[Effect]

Therefore, in the recording and reproducing apparatus of this invention, when the end of the magnetic tape is reached during recording transfer,
Based on the end detection by the tape end detection means, in the CD player, the back access command means returns the pickup to the beginning of the information being played on the CD, and then the playback standby control means controls play to pause or stop. automatically enters standby mode for the next playback.

Furthermore, in the cassette tape recorder, based on the end detection, the transfer end processing means re-mutates the information being recorded on the magnetic tape from the beginning, and the incomplete recording is automatically erased.

〔Example〕

Next, this invention will be explained in detail with reference to drawings showing embodiments thereof.

First, FIG. 1 showing Example 1 will be explained.

In the figure, reference numeral 1 denotes a compact disk player (hereinafter referred to as a CD player), which plays a CD (not shown) on which audio information such as songs is recorded. 2 is a cassette tape recorder which is a recording means, and a cassette tape (not shown)
The playback information of the CD is recorded.

3 is a first resistor for current limiting, one end of which is connected to the power supply terminal +B of the tape recorder 2, and 4, one end of which is connected to the other end of the first resistor 3 via a second resistor 5 for base bias of the first transistor, which will be described later. a capstan motor for controlling the recording and reproduction of the cassette tape; 6 is an emitter; the base is connected to both ends of the second resistor 5; the collector is grounded via a third grounding resistor 7; tape end detection means; The motor 4 is overloaded due to the tension of the tape when it reaches the end of the cassette tape during recording or playback, and the current flowing through the motor 4 increases and the current flows across the resistor 5. The voltage increases, the first transistor 6 turns on, and a low-level rewind/playback command signal is output to the recording/playback control section of the tape recorder 2 (not shown) via the output terminal 8 connected to the emitter, and the tape is turned on. Recorder 2
is controlled to a rewind playback state, and an end detection signal proportional to the voltage across the resistor 7 is outputted via a shielded cable 9 whose outer sheath is grounded and one end of the core wire is connected to the emitter of the first transistor 6. be done.

Reference numeral 10 denotes a head for detecting between songs, which is provided in the tape recorder 2 and outputs a playback signal of audio information recorded on the cassette tape which is being rewound and played back by the pre-recording/reproduction control unit; 11 is an input terminal connected to the head 10; 12 is a rectifying diode whose anode is connected to the output terminal of the amplifier 11 and rectifies the reproduced signal amplified by the amplifier 11; 13 is connected at one end to the cathode of the diode 12; 14 is an NPN type second transistor whose collector is connected to the power supply terminal + through a fourth current-limiting resistor 15.
B, the base is connected to the cathode of the diode 12, and the emitter is grounded. When the playback signal from the head 10 is at a low level, that is, the unrecorded portion between songs of the audio information recorded on the cassette tape. When the second transistor 14 is regenerated, the second transistor 14 is turned off, and the output terminal 1 connected to the collector
A high level inter-track detection signal is outputted from 6, and the circuit surrounded by the one-dot chain line in the figure constitutes the inter-track detection section 17 for finding the beginning of the cassette tape.

Note that the song interval detection section 17 and the recording/reproducing section form a transfer end processing means, and the pre-recording/re-control section is activated by the song interval detection signal to control the tape recorder 2.
is controlled to a recording state, and muting recording is performed from the non-recorded portion of the cassette tape to the end.

Reference numeral 18 designates a third transistor for back access of an NPN type, which is provided in the CD player 1 and whose base is connected to the other end of the core wire of the cable 9, and which is turned on by the termination detection signal via the cable 9, and which controls the back access command means. By turning on this transistor 18, the connection terminals connected to the collector and emitter of the third transistor 18, respectively, are turned on, in the same way as when turning on the back access key 19 provided between the collector and emitter of the third transistor 18. A back access signal is output to the recording/playback control section of the CD player 1 (not shown) via 20a and 20b, and the pickup laser beam irradiation position is the start position of the audio information of the song being played, that is, the song being played. is pulled back to the beginning of the .

21 is a fifth time constant resistor provided in the CD player 1 and has one end connected to the other end of the core wire of the cable 9; 22 is a fifth resistor provided in the CD player 1 and has one end connected to the other end of the core wire of the cable 9;
A time constant capacitor 24 is connected to the other end of the resistor 21 and has the other end grounded, and constitutes the delay section 23 together with the fifth resistor 21; Delay section 23
This is a fourth NPN-type temporary stop (hereinafter referred to as pause) transistor that is turned on by the termination detection signal that is delayed and inputted, and forms playback standby control means, and when this transistor 24 is turned on, the fourth transistor Similarly to the case where the pause key 25 provided between the collector and emitter of the fourth transistor 24 is turned on, the collector of the fourth transistor 24,
Connection terminals 26a connected to the emitters,
A pause signal is output to the pre-recording/re-controlling section of the CD player 1 via the delay section 26b, and the CD player 1 is controlled to be in a paused state.
3 and both transistors 24 constitute a pause control section 27.

Next, the operation of the above embodiment will be explained.

Now, when audio information consisting of a plurality of songs recorded on the CD is to be recorded on the cassette tape, a playback command is given to the pre-recording and re-control section of the CD player 1 by operating the playback key, and the pre-recording and re-control section At the same time, by controlling the CD player 1 to the playback state, a recording command is given to the pre-recording and re-controlling section of the tape recorder 2 by operating the record key, and the pre-recording and re-controlling section controls the tape recorder 2 to the recording state. A reproduction signal of the audio information recorded on the CD is applied to the recording head of the tape recorder 2, and the audio information of the CD is recorded on the cassette tape.

Then, when the cassette tape being recorded reaches the end and is interrupted in the middle of a song being recorded on the cassette tape, the motor 4 becomes overloaded due to the tensile force of the tape, and the current flows to the motor 4. The current increases, the voltage across the resistor 5 increases, the base potential of the first transistor 6 drops, the first transistor 6 turns on, and the pre-recording/re-controlling section of the tape recorder 2 causes the tape recorder 2 to change from the recording state. At the same time as the switching to the rewind playback state is controlled, an end detection signal is output to the base of the third transistor 18 and the delay section 23 via the cable 9, and the third transistor 18 is turned on, causing the CD player 1 to play the previous recording. A back access signal is output to the control section, and the irradiation position of the pick-up laser beam of the CD player 1 is returned to the beginning of the song that was being played up to that point, and the time of the delay section 23 is changed from the time when the end detection signal is output. After a time delay determined by a constant, the fourth transistor 24 turns on, and a pause signal is output to the pre-recording/re-control section of the CD player 1, causing the CD player 1 to enter a pause state (pause state).
controlled by.

On the other hand, in the tape recorder 2 which is controlled to the rewind playback state, the head 10 performs rewind playback of the music recorded near the end of the cassette tape, and the head 10 performs rewind playback of the music recorded near the end of the cassette tape. is regenerated, amplifier 1
1. Second transistor 1 via diode 12
4 becomes low level, the second transistor 14 is turned off, and a high level inter-track detection signal is output from the output terminal 16 to the pre-recording/re-control section of the tape recorder 2. Controlled to the recording state, muting recording is performed from the unrecorded portion of the cassette tape to the end, and the audio information of the music piece that was partially recorded near the end of the cassette tape is erased.

Furthermore, when the erasing of the cassette tape is completed, the cassette tape is turned over and loaded into the tape recorder 2, or another new cassette tape is loaded into the tape recorder 2, and the CD player 1 is restarted by operating the pause release key. By putting the tape recorder 2 into the playback state and putting it into the recording state again by operating the record key, the music at the beginning of the CD and the remaining music can be recorded on the back side of the cassette tape or on the new cassette tape. Audio information is recorded.

Next, FIG. 2 showing the second embodiment will be explained.

In FIG. 2, the same symbols as in FIG. 1 indicate the same or equivalent things, and the difference from FIG. In addition to providing an antenna 29, a receiving antenna 30 and a receiver 31 are provided on the CD player 1 side, and when the first transistor 6 is turned on, an oscillation signal of a predetermined frequency from the oscillator 28, which is a termination detection signal, is transmitted from the transmitting antenna 29 as a wireless signal. The oscillation signal is received by the reception antenna 30, and the receiver 31 outputs a reception signal that turns on both transistors 18 and 24 of the pause control section 27.

Further, FIG. 3 and FIG. 4 showing Examples 3 and 4, respectively, will be explained.

First, in FIG. 3, the same symbols as in FIG. 1 indicate the same or equivalent things, and the difference from FIG. An optical fiber 33 is provided in proximity to the issuing diode 32, and a photoelectric converter 34 is connected to and provided at the end of the optical fiber 33,
The light as a termination detection signal emitted from the emission diode 32 when the first transistor 6 is turned on,
The point is that the signal is optically transmitted to the photoelectric converter 34 via the optical fiber 33, and the converter 34 outputs a conversion signal that turns on both transistors 18 and 24 of the pause control section 27.

Next, in FIG. 4, the same symbols as in FIG. 1 indicate the same or equivalent things, and the difference from FIG. 1 is that the collector side of the first transistor 6 is activated by turning on the first transistor 6. In addition to providing an oscillator 35 and a speaker 36,
A sound collection microphone 37, a bandpass filter 38, and a demodulator 39 are provided on the CD player 1 side, and when the first transistor 6 is turned on, an oscillation signal of a predetermined frequency from the oscillator 35 is converted into an audio signal by the speaker 36, and a termination detection signal is generated. Output as mic 37
collects the audio signal, extracts only the audio signal based on the oscillation signal using the filter 38, demodulates the extracted audio signal using the demodulator 39, and transmits the audio signal to both transistors 18 and 2 of the pause control section 27.
The point is that a demodulated signal that turns on 4 is output.

In each of the above embodiments, the CD player 1 is controlled to be in the pause state by turning on the fourth transistor 24 of the pause control section 27, but the CD player 1 is controlled to be in the stopped state by turning on the fourth transistor 24. In this case, this idea can be implemented in the same way.

Further, the information recorded on the CD is not limited to audio information such as songs, but may of course be video information.

[Effect of idea]

As described above, according to the recording and reproducing apparatus of this invention, when the information reproduced from a CD by a CD player is recorded and transferred to a magnetic tape by a tape recorder,
When the magnetic tape reaches the end during playback of information on the CD player, the end of the magnetic tape is detected by the tape end detection means, and the back access command means returns the pickup of the CD player to the beginning of the information being played back, and then controls playback standby. The means automatically controls the CD player to a pause state or a stop state, and the transfer end processing means remutes the information on the magnetic tape from the beginning of the information being recorded, thereby eliminating incomplete recording near the end of the tape. Because the data is automatically erased, when the recording transfer is interrupted at the end of the magnetic tape, the user can manually pick up the CD player by comparing the playback time of the recorded information on the CD with the remaining recordable time on the cassette tape. By flipping the magnetic tape or replacing it with a new one and starting recording transfer again, without having to change the position or erase unnecessary records on the magnetic tape, the CD can be transferred.
The information can be recorded and transferred to the magnetic tape without interruption, and the burden on the user can be greatly reduced and ideal recording and transfer can be performed.

In the second embodiment, since the end detection is transmitted wirelessly from the cassette tape recorder to the CD player, cables and the like are not required, and the number of wiring lines can be reduced.

In addition, in Embodiment 3, since an optical fiber was used for transmission of end detection,
It is possible to transmit the completion detection notification to the CD player using an optical signal, and it is possible to prevent the intrusion of noise.

Furthermore, in the fourth embodiment, the end detection is notified by an audio signal from the speaker based on the oscillation signal of the oscillator, so that the user can be audio notified that the end of the tape being used has been reached, further improving usability.

[Brief explanation of the drawing]

1 to 4 are block diagrams of embodiments of the recording/reproducing apparatus of this invention. DESCRIPTION OF SYMBOLS 1... CD player, 2... Cassette tape recorder, 6, 18, 24... First, third, fourth transistors, 17... Song interval detection section, 27... Pause control section.

Claims (1)

[Claims for Utility Model Registration] A compact disc player that reproduces information recorded on a compact disc by pickup; a cassette tape recorder that records and transfers the information on the disc reproduced by the player onto a magnetic tape; tape end detection means for detecting the end of the tape; and back access command means for instructing the player to perform back access upon detecting the end of the tape, and returning the pick-up to the beginning of the information being played back on the disc; playback standby control means for controlling the player to pause or stop after the end of the back access due to a delay in the end detection; and mutating after instructing the recorder to rewind to the beginning of the information being recorded due to the end detection; A recording/reproducing apparatus comprising transfer termination processing means for instructing recording and erasing incomplete recording on the magnetic tape.