JPH0778458A - Recording/reproducing device - Google Patents

Abstract

PURPOSE:To prevent the head cut when program searching is performed by reproducing from a position going back by a fixed time when the fact that it is the record of a signal outputted from an A/D coverter is judged. CONSTITUTION:When an instruction is issued to a control circuit 20 so as to research a specified music at high speed, by the circuit 20, a music number on a present magnetic tape 8 is compared with a specified music number. Then, when the fact that it is the record inputted from an analog signal input terminal 24 and A/D converted by the A/D converter 25 is judged, after the tape 8 by a prescribed time is rewound, a mode is switched to a reproducing mode. Thus, the head cut is prevented when the program searching of the music and a track is performed based on a start ID recorded on the head of the recorded music and track.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a digital audio tape recorder device (D) which is a digital recording / reproducing device.
The present invention relates to an AT) and a mini disc device (MD), etc., and more specifically, a head cut when performing the cueing of the recorded song or track based on the start ID recorded at the beginning of the recorded song or track. Is to prevent.

[0002]

2. Description of the Related Art First, conventional DAT and MD will be described.

When a DAT is used to digitally record a music signal, a so-called start I is placed at the beginning of the music so that the music designated at the time of reproduction can be searched at high speed.
A cueing signal called D can be recorded.

The writing of the start ID can be performed by the operation of the user at the start of recording or at the time of reproducing the recorded music signal, and when the automatic level detecting circuit is provided, At the time of analog input of a music signal, from the state where the signal level of the input analog signal is lower than the specified value (for example, silent portion between songs), the next time the signal level of the analog signal becomes higher than the specified value (for example, It is also possible to automatically start writing of the start ID based on the detection of the (starting portion).

Next, even when a music signal is digitally recorded in the MD, the user T can search the music designated at the high speed at the same time as described above in the same manner as described above.
Data indicating the start address of each song is automatically recorded in an area called an OC area (UTOC).

[0006]

However, the conventional device described above has the following problems.

First, in the DAT, as described above,
When the start ID is written by the user's operation, the user must perform the write operation after the beginning of the song is played (after hearing it), so the actual position of the start ID is always the song. Is shifted rearward from the beginning portion (that is, the rising portion of the music signal).

Even if the automatic level detection circuit is provided, since the start ID is written after the beginning of the music is detected, the position of the start ID is located slightly behind the beginning of the music. It may shift.

For this reason, when a specified music piece is searched and reproduced at high speed, if the music signal is reproduced after the start ID is detected after the search of the specified music piece is completed, the beginning portion of the music piece is not reproduced. The inconvenience (so-called head loss) occurs.

By the way, CD (compact disc)
When a digital signal is input and recorded as in the recording from No. 3, the write timing of the start ID does not shift backward from the beginning of the song. This is C
This is because the signal indicating the beginning of the music is recorded in D, and the DAT can write the start ID based on the signal. Therefore, no head cut occurs when a specified music piece is searched and reproduced at high speed. Also,
For commercially available music tapes, start I beforehand
Since D is recorded at an appropriate position, no head cut occurs when a specified music piece is searched and reproduced at high speed.

On the other hand, also in the MD, when the analog music signal is input, the automatic level detection circuit changes the signal level of the analog signal from the state where the signal level is smaller than the specified value to the signal level of the analog signal next becomes larger than the specified value. Data is written to the UTOC rather than the rising edge (address of) of the music signal at the beginning of the actual song, because the data indicating the beginning address is written to the UTOC by detecting this moment as the beginning of the song. (Address) shifts backward.

For this reason, when searching for a designated song at the time of reproduction at high speed, after the beginning point of the designated song is detected by high-speed access using data indicating the beginning of an arbitrary song recorded in the UTOC, If the reproduction operation of the music signal is performed from the beginning, the inconvenience that the beginning of the music is not reproduced occurs.

On the other hand, when a digital input signal is recorded as from a CD, the start address of any music written in the UTOC does not shift backward from the rising edge of the music signal on the disc. As mentioned earlier, C
Since the signal indicating the beginning of the song is recorded in D, MD
Is because the data indicating the start address of the music is written based on the signal. Also, even in a commercially available music disc, data indicating the start address of a music piece is recorded in advance like a CD, so that no head cut occurs.

[0014]

In order to solve the above problems, according to the present invention, an analog signal input terminal for inputting an analog signal, a digital signal input terminal for inputting a digital signal, and an input from the analog signal input terminal are provided. A / D converter for converting an analog signal into a digital signal, a digital signal input from the digital signal input terminal, and the A
A recording / reproducing apparatus, comprising: a selecting unit for selecting a digital signal output from a D / D converter, and recording the signal selected by the selecting unit on a recording medium. In a recording / reproducing device capable of recording information and sub-information indicating the beginning of a song, an analog signal input from the analog signal input terminal is guided, and a signal level of the analog signal is compared with a reference signal level to detect a detection signal. An output comparator and, upon recording on the recording medium, receives a detection signal output from the comparator to record sub-information indicating the beginning of a song on the recording medium, and at the time of reproduction, a search based on the sub-information. When performing the operation and the reproducing operation, it is determined whether or not the signal output from the A / D converter is recorded based on the sub information recorded on the recording medium. When it is determined that the signal output from the A / D converter is to be recorded, the control means for performing the reproducing operation from a position that is traced back by a fixed time from the temporal position on the recording medium indicated by the sub information. It is intended to provide a recording / reproducing apparatus including the.

[0015]

With the above construction, the control means
When performing a search operation and a reproduction operation based on the sub information during reproduction, it is determined whether or not the signal output from the A / D converter is recorded based on the sub information recorded on the recording medium. At the same time, when it is determined that the signal output from the A / D converter is to be recorded, reproduction is performed from a position that is traced back by a fixed time from the temporal position on the recording medium indicated by the sub information. No head cuts.

[0016]

Embodiments of the present invention will be described in detail below with reference to the drawings.

FIG. 1 is a circuit block showing the structure of a DAT to which the present invention is applied. In the figure, reference numeral 24 denotes an analog signal input terminal for inputting an analog audio signal, 2
5 is an A / D converter for converting an analog signal input from the analog signal input terminal 24 into a digital signal, 26
Is a digital signal input terminal for inputting a digital audio signal, 1 is a digital signal input from the analog signal input terminal 24 and converted by the A / D converter 25, and digital input from the digital signal input terminal 26 A selection switch 2 for selecting a signal and a PCM modulation circuit 3 which interleaves the digital signal selected and input by the selection switch 1 and adds an error correction code and performs processing such as time compression. A subcode signal generation circuit 4 for generating time information such as time, and an information signal such as a start ID indicating the beginning of a song used when cueing a song, and 4 generating a pilot signal and a sync signal for tracking control. A pilot signal generation circuit 5 is a recording amplifier, and the output of the PCM modulation circuit 2 and a subcode signal generation circuit Output, the output of the pilot signal generating circuit 4 is selected and input in a time-sharing by the switch 23.

A rotary transformer 10 supplies an output signal from the recording amplifier 5 to the recording / reproducing heads 7 and 7 and a reproduction output signal from the recording / reproducing heads 7 and 7 to a reproducing amplifier 9. A PCM demodulation circuit for producing a PLL clock from the output signal from the reproduction amplifier 9, extracting a data signal, and further performing error correction and the like to demodulate the original analog signal, 11 is processed by the PCM demodulation circuit 10. Further, a subcode processing circuit 12 for extracting information signals such as sampling frequency and the number of quantization bits, subcode signals such as music number and time information, and 12 are output terminals of demodulated analog signals.

Next, 13 is a supply reel motor, 16 is a take-up reel motor, 17 is a reel motor servo circuit for controlling the supply reel motor and the take-up reel motor 16, 14 is a capstan motor, and 15 is a capstan motor. Is a cylinder motor, 18 is a cylinder motor servo circuit for controlling the cylinder motor 15, and 19 is a servo signal for tracking control extracted from the output signal of the reproducing amplifier 9.
An ATF servo circuit that controls the capstan motor 14.

Numeral 20 is a control circuit for controlling the entire apparatus, which controls the respective motor servo circuits and
Key input terminal 21 and mechanism switch input terminal 22
Each block is controlled by the information from.

When the magnetic tape 8 is set to the normal recording mode by the operation key signal or the mechanism detection signal from the input terminals 21 and 22, the control circuit 20 controls the magnetic tape 8 to be positive at the normal 1 × speed of the normal mode. While traveling in the direction, the cylinder also rotates at standard speed and the normal speed recording mode is set.

On the other hand, when the long-time recording mode is set,
The magnetic tape 8 runs in the normal direction at the normal half speed of the standard mode, and the cylinder also rotates at the normal half speed, so that the half speed recording mode is set.

In these recording modes, the input signal is processed by the PCM modulation circuit 2, the subcode signal generation circuit 3 processes subcode information such as the sampling frequency and the number of quantization bits, and the pilot signal generation circuit. It is sent to the recording amplifier 5 together with the output of 4 and recorded on the magnetic tape 8 through the rotary transformer 6 and the magnetic head 7.

At the time of reproduction, the signal recorded on the magnetic tape 8 is read by the magnetic head 7, and the rotary transformer 6 is read.
The signal reproduced via the output terminal 12 is sent to the reproduction amplifier 9 and further processed by the digital signal processing circuit 10.
Is output as an analog signal.

At this time, the subcode information such as the recorded sampling frequency, the number of quantization bits, and the time information is also processed by the PCM demodulation circuit 10 and the subcode processing circuit 11
And is sent to the control circuit 20. Based on this subcode information, the control circuit 20 determines the magnetic tape speed and the number of rotations of the cylinder, and controls the reel motor servo circuit 17, the cylinder motor servo circuit 18, and the ATF servo circuit 19. That is, in the half speed mode, the magnetic tape 8 is run at the normal half speed of the standard mode, the cylinder speed is set to the standard speed, and the reproduction is performed by the so-called double scan method.

On the other hand, FIG. 2 shows an example of a track pattern on the magnetic tape 8. The magnetic tape 8 runs in the A direction,
When the magnetic head 7 scans in the B direction, a diagonal track pattern is formed on the magnetic tape 8. The track is divided into five areas, and a time-axis compressed audio signal recording area 34 is provided in the center, pilot signal recording areas 31 and 32 are provided on both sides thereof, and subcode signal recording areas 30 and 33 are provided on both sides thereof. ing.

Next, the recording operation of the start ID will be described.

During recording, the analog signal input terminal 2
4 or the audio signal input from the digital signal input terminal 26 is selected by the selection switch 1, and which input terminal the signal is selected from, and the source device when the signal is input from the digital signal input terminal 26. The name (CD, BS, etc.) is input to the subcode signal generation circuit 3 and recorded on the magnetic tape 8.

When the selection switch 1 selects the digital audio signal input from the digital signal input terminal 26, the start ID information in the digital input signal is input to the subcode signal generation circuit 3 and the magnetic tape. 8
On the other hand, when a digital signal recorded on the analog signal input from the analog signal input terminal 24 and converted through the A / D converter 19 is selected, the analog audio signal before conversion is compared with the comparator 27. To enter.

Then, the comparator 27 compares the threshold level Vc with the threshold level Vc, and from the state where the signal level of the analog voice signal is lower than the threshold level Vc, the signal level of the analog voice signal becomes higher than the threshold level Vc next. The detection signal output from 27 is supplied to the control circuit 20.
Then, the control circuit 20 inputs the start ID information to the subcode signal generation circuit 3 and records it on the magnetic tape 8.

Next, regarding the characteristic operation of the present invention,
This will be described with reference to the flowchart of FIG. When the control circuit 20 is instructed to search the specified music at high speed (50), first, the current music number on the magnetic tape 8 is compared with the specified music number (51), a) Current When the music number on the magnetic tape 8 <the specified music number: The search operation of the specified music is performed by the FF search (52).

B) When the current song number on the magnetic tape 8> the designated song number: The search operation of the designated song is performed by the REW search (5
4).

After completion of each search operation (53, 55),
It is judged whether or not it is a commercially available music tape by reproducing the subcode data (56). If it is determined as a commercially available music tape, after the start ID is detected,
Immediately after entering the reproduction mode (59), if the tape created by the user's recording is also judged by the subcode data to be a recording from a digital signal source such as a CD or BS device (57). ), Immediately after the start ID is detected, the reproduction mode is immediately entered (59). On the other hand, when it is determined that the analog signal is A / D converted and recorded, the magnetic tape for a predetermined time is rewound (REVER).
After RSE PLAY) (58), the playback mode is entered (59).

These operations are shown in time charts in FIGS. 4 and 5.

When the current song number on the magnetic tape is smaller than the designated song number [n], the start ID of the designated song [n] is detected by the FF search as shown in FIG. 4 (6
0), REVERSE PLAY returns to the part immediately before the start ID (61), and the reproduction operation in which the voice is muted is started (62). When the start ID is detected again, the subcode data is reproduced and the commercially available music tape is reproduced. In this case, the reproduction mode is immediately entered after the start ID is detected (63).

On the other hand, in the case of a tape recorded by the user, it is judged whether or not it is digital recording, and if it is judged that the recording is from a CD or BS device, it is immediately reproduced after the start ID is detected. When the mode is entered (63) and it is judged that the recording is the A / D conversion of the analog signal, the magnetic tape is reversed for a predetermined time (t).
After playing (64), enter playback mode (6
5).

If the current song number on the magnetic tape is smaller than the designated song number [n], as shown in FIG.
After detecting the start ID of the specified song [n] by EW search (70), advance to the start point of the start ID by CUE PLAY (71), then REVERSE PLA
By Y, it returns to the part immediately before the start ID (72), then the reproduction operation with the sound muted is started (73), and when the start ID is detected, the subcode data is reproduced, and in the case of a commercially available music tape, it is started. Immediately after the ID is detected, the reproduction mode is entered (74).

On the other hand, in the case of a tape recorded by the user, it is judged whether or not it is digital recording, and if it is judged that the recording is from a CD or BS device, it is immediately reproduced after the start ID is detected. When the mode is entered (74) and it is judged that the recording is the A / D conversion of the analog signal, the magnetic tape is reversed for a predetermined time (t).
After playing (75), enter the playback mode (7
6).

Next, an example in which the present invention is applied to an MD will be described.

FIG. 6 is a circuit block diagram showing the structure of an MD to which the present invention is applied. In the figure, 80 is a digital signal input terminal for inputting a digital audio signal from a device such as a CD or BS, 81 is an analog signal input terminal for inputting an analog audio signal, and 82 is an input from the analog signal input terminal 81. A / D converter for converting the analog signal into a digital signal, and 83 is a selection for selecting the signal input from the digital signal input terminal 80 or the digital signal input from the analog signal input terminal 81 and converted by the A / D converter 82. A switch, 84 is an ATRAC processing circuit for compressing the digital signal passed through the selection switch 83 and converting it into a highly efficient encoded digital signal, 85.
Is a digital signal processing circuit for interleaving the signal output from the ATRAC processing circuit 84, adding an error correction code, and converting it to a digital signal with a subcode signal added, and 86 is a head drive circuit, and a digital signal processing circuit An output signal from 85 is converted into a signal for recording on the magneto-optical disk 88 by the recording magnetic head 87.

Reference numeral 89 is an optical pickup for converting the pit data read from the magneto-optical disk 88 into a digital signal, 90 is a digital signal processing circuit for performing processing such as error correction, and 91 is processed by the digital signal processing circuit 90. An ATRAC processing circuit for decompressing the signal and returning it to the original digital signal, 92 is a D / A conversion circuit for converting the digital signal output by the ATRAC processing circuit 91 into the original analog signal, and 93 is the output of the converted analog signal It is a terminal.

A feeding motor 94 drives the optical pickup 89 to reciprocate between the inner and outer circumferences of the magneto-optical disk 88, and is controlled by a tracking error signal output from the optical pickup 89 via a servo control circuit 95. A spindle motor 96 rotates the magneto-optical disk 88.

Reference numeral 97 is a control circuit for controlling the device, which shifts the mechanism to each mode of recording / reproducing / fast-forwarding / fast-returning and performs the processing based on the key input terminal 98 and the processing of the sub-code data. The processing circuits 85 and 90 and the servo control circuit 95 are controlled.

Next, FIG. 7 is a view showing a cross section of the magneto-optical disk 88, 99 is an area in which the disc information can be reproduced in the lead-in area, 100 is an UTOC area in which the recording information can be recorded / reproduced, 101 Is the area where the music information can be recorded and played in the program area, 10
Reference numeral 2 is a lead-out area.

Next, the operation of the apparatus will be described.

First, at the time of recording, a digital signal input from the digital signal input terminal 80 by the selection switch 83 and a digital signal obtained by converting the analog signal input from the analog signal input terminal 81 by the A / D converter 82. In the case where the selected input signal is selected and, in the case of the digital signal input from the digital signal input terminal 80, information about the source device name (CD, BS, etc.) is input to the control circuit 97, and the control circuit is input. 97
Records this information in the UTOC area 100 of the magneto-optical disk 88 by the recording magnetic head 87.

When the signal input from the digital signal input terminal 80 is selected, the start ID information in the digital input signal is input to the control circuit 97 and recorded in the UTOC area 100 of the magneto-optical disk 88. ,
When a digital signal obtained by converting the analog input signal through the A / D converter 82 is selected, the analog input signal is guided to the comparator 103, and the comparator 103 causes the signal level of the analog input signal and the threshold level Vc to be reached. When the signal level of the analog input signal is smaller than the threshold level Vc and then the signal level of the analog input signal becomes larger than the threshold level Vc, the control circuit 97 outputs the detection signal output from the comparator 103. It is determined that the beginning of the song is input to the magneto-optical disk 8 by the instruction of the control circuit 97.
8 are recorded in the UTOC area 100.

Next, the operation of the present invention will be described based on the flowchart of FIG.

When the control circuit 97 is instructed to search the designated music at high speed, 40, the magneto-optical disk 88.
The data in the UTOC area 100 of is reproduced to determine whether it is a commercially available music disc (4
1). And in the case of commercially available music discs,
The start time data of the designated song is set as the search address (43).

On the other hand, in the case of the disc recorded by the user, it is further judged whether or not it is the recording of the digital input signal (42), and if it is judged that the recording of the digital signal from the CD or BS device is made. , Set the start time data of the specified song as the search address (43), and
When it is determined that the analog input signal is A / D-converted signal recording, (the address of) a predetermined time before the start time data of the designated music is set as the search address (44).

Next, the address on the current disk is compared with the search address (45), and a) If the address on the current disk <search address, the search operation to the search address is performed by FF search (46).

B) Address on current disc> Search address A search operation is performed to the search address by REW search (48).

After completion of each search operation (47, 49),
The playback mode is entered (39).

These operations are shown in time charts in FIGS. 9 and 10.

In FIG. 9, a commercially available music disc or a disc recorded by the user,
In the case of digital recording from a D or BS device, the start time data of the designated song is set as a search address, and if the current address on the disc <search address, FF search (110) and playback operation ( 111) is performed.

On the other hand, when the disc is recorded by the user and it is determined that the analog input signal is A / D converted and recorded, the search address is a predetermined time (t) before the start time of the designated music. When the address on the current disc is smaller than the search address, the FF search (112) and the reproducing operation (113) are performed.

Further, in FIG. 10, in the case of a commercially available music disc or a disc recorded by a user and digitally recorded from a CD or BS device, the start time data of the designated song is set as a search address. If the address on the current disc> the search address, the REW search (114) and the reproducing operation (115) are performed.

When it is determined that the disc is recorded by the user and the analog input signal is A / D converted and recorded, the search address is a predetermined time (t) before the start time of the designated music. When the address on the disc is present> search address, the FF search (116) and the reproducing operation (117) are performed.

Although the above embodiments have been described only for the case of applying to DAT and MD, other digital recording / reproducing devices such as DCC (digital compact cassette device) have index information for searching. Any device can be applied.

[0060]

As described above in detail, according to the present invention, an analog signal input terminal for inputting an analog signal, a digital signal input terminal for inputting a digital signal, and an analog signal input from the analog signal input terminal are provided. An A / D converter for converting the digital signal into a digital signal, and a selection means for selecting the digital signal input from the digital signal input terminal and the digital signal output by the A / D converter. A recording / reproducing apparatus for recording the recorded signal on a recording medium, wherein the recording medium can record at least main information such as an audio signal and sub-information indicating the beginning of a song, the analog signal input terminal A comparator that guides the input analog signal and outputs the detection signal by comparing the signal level of the analog signal with the reference signal level, When recording on the recording medium, the detection signal output from the comparator is received to record the sub-information indicating the beginning of the song on the recording medium, and at the time of reproduction, the search operation and the reproduction operation based on the sub-information are performed. At this time, it is determined whether or not the signal output by the A / D converter is recorded based on the sub information recorded on the recording medium, and the signal output by the A / D converter is recorded. When the determination is made, the control means for performing the reproducing operation from the position which is traced back by a fixed time from the temporal position on the recording medium indicated by the sub-information is provided, so that the good search and A playback operation can be performed.

[Brief description of drawings]

FIG. 1 is a circuit block diagram showing a configuration of a DAT to which the present invention is applied.

FIG. 2 is a diagram showing a recording pattern on a tape.

FIG. 3 is a flowchart for explaining the operation of the present invention.

FIG. 4 is a timing chart for explaining the operation of the present invention.

FIG. 5 is a timing chart for explaining the operation of the present invention.

FIG. 6 is a circuit block diagram showing a configuration of an MD to which the present invention is applied.

FIG. 7 is a diagram showing a recording area of a magneto-optical disk.

FIG. 8 is a flowchart for explaining the operation of the present invention.

FIG. 9 is a timing chart for explaining the operation of the present invention.

FIG. 10 is a timing chart for explaining the operation of the present invention.

[Explanation of symbols]

 1 Selection Switch 2 PCM Modulation Circuit 3 Subcode Signal Generation Circuit 4 Pilot Signal Generation Circuit 5 Recording Amplifier 6 Rotary Transformer 7 Recording / Reproducing Head 8 Magnetic Tape 9 Reproducing Amplifier 10 PCM Demodulation Circuit 11 Subcode Processing Circuit 12 Output Terminal 13 Supply Side Reel Motor 14 Capstan motor 15 Cylinder motor 16 Winding side reel motor 17 Reel motor servo circuit 18 Cylinder motor servo circuit 19 ATF servo circuit 20 Control circuit 21 Key input terminal 22 Mechanism switch input terminal 23 Switch 24 Analog signal input terminal 25 A / D converter 26 Digital signal input terminal 27 Comparator 30 Subcode signal recording area 31 Pilot signal recording area 32 Pilot signal recording area 33 Subcode signal recording area 34 Inter-axis compressed audio signal recording area 80 Digital signal input terminal 81 Analog signal input terminal 82 A / D converter 83 Selection switch 84 ATRAC processing circuit 85 Digital signal processing circuit 86 Head drive circuit 87 Recording magnetic head 88 Magneto-optical disk 89 Optical pickup 90 Digital Signal Processing Circuit 91 ATRAC Processing Circuit 92 D / A Conversion Circuit 93 Output Terminal 94 Feed Motor 95 Servo Control Circuit 96 Spindle Motor 97 Control Circuit 98 Key Input Terminal 99 Lead-in Area 100 UTOC Area 101 Program Area 102 Lead-out Area 103 Comparator

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Internal reference number FI technical display location G11B 27/10 A 8224-5D

Claims (3)

[Claims] 1. An analog signal input terminal for inputting an analog signal, a digital signal input terminal for inputting a digital signal, an A / D converter for converting an analog signal input from the analog signal input terminal into a digital signal, The digital signal input from the digital signal input terminal and the A
A recording / reproducing apparatus, comprising: a selecting unit for selecting a digital signal output from a D / D converter, and recording the signal selected by the selecting unit on a recording medium. In a recording / reproducing device capable of recording information and sub-information indicating the beginning of a song, an analog signal input from the analog signal input terminal is guided, and a signal level of the analog signal is compared with a reference signal level to detect a detection signal. An output comparator and, upon recording on the recording medium, receives a detection signal output from the comparator to record sub-information indicating the beginning of a song on the recording medium, and at the time of reproduction, a search based on the sub-information. When performing the operation and the reproducing operation, it is determined whether or not the signal output from the A / D converter is recorded based on the sub information recorded on the recording medium. When it is determined that the signal output from the A / D converter is to be recorded, the control means for performing the reproducing operation from a position that is traced back by a fixed time from the temporal position on the recording medium indicated by the sub information. A recording / reproducing apparatus comprising: 2. An analog signal input terminal for inputting an analog signal, a digital signal input terminal for inputting a digital signal, an A / D converter for converting an analog signal input from the analog signal input terminal into a digital signal, The digital signal input from the digital signal input terminal and the A
A recording / reproducing apparatus comprising: a digital signal output from a / D converter and a selecting unit for selecting and outputting the digital signal, and recording the signal selected by the selecting unit on a tape-shaped recording medium. In a recording / reproducing apparatus capable of recording at least main information such as an audio signal and sub information such as a start ID indicating the beginning of a song on a medium by a magnetic head,
When the analog signal input from the analog signal input terminal is guided and a comparator for comparing the signal level of the analog signal with a reference signal level to output a detection signal, and when recording on the tape-shaped magnetic recording medium by the magnetic head In response to the detection signal output from the comparator, the start ID is recorded on the tape-shaped magnetic recording medium, and the tape-shaped magnetic recording medium is recorded on the tape-shaped magnetic recording medium when performing a search operation and a reproduction operation based on the start ID during reproduction. Based on the recorded sub-information, it is determined whether or not the signal output by the A / D converter is recorded, and if it is determined that the signal output by the A / D converter is recorded, Based on the judgment, the search operation for the start ID is performed, and the start I
After the detection of D, the recording / reproducing apparatus further comprises a control means for rewinding the tape for a predetermined time and then performing a reproducing operation. 3. An analog signal input terminal for inputting an analog signal, a digital signal input terminal for inputting a digital signal, an A / D converter for converting the analog signal input from the analog signal input terminal into a digital signal, The digital signal input from the digital signal input terminal and the A
A recording / reproducing apparatus for selecting a digital signal output from a / D converter and outputting the selected signal to a disc-shaped recording medium.
In a recording / reproducing apparatus capable of recording at least main information such as a voice signal and sub-information such as a start address indicating the beginning of a song on the disk magnetic recording medium by a recording head, an analog signal input from the analog signal input terminal is guided. And a comparator that outputs a detection signal by comparing the signal level of the analog signal with a reference signal level, and a detection signal that is output by the comparator during recording on the disk magnetic recording medium by the magnetic head. The start address is recorded on the tape-shaped magnetic recording medium, and the A / D is recorded based on the sub-information recorded on the tape-shaped magnetic recording medium when performing the search operation and the reproduction operation based on the start address during reproduction. It is judged whether or not the signal output by the converter is recorded, and the signal output by the A / D converter is recorded. If it is determined that the start address is further subtracted by a certain time based on the determination to obtain a search address, a control means for performing a search operation after performing a search operation based on the search address is provided. A recording / reproducing device characterized by being provided.