JP2543218B2 - Recording and playback device - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to recording / reproducing capable of recording control information such as a program start signal indicating a start position of a program, which is a series of recording information, in a specific area of a recording medium. Regarding the device.

2. Description of the Related Art Conventionally, there is a rotary head type magnetic recording / reproducing apparatus called R-DAT as one of the recording / reproducing apparatuses. In this device, recording signals such as music signals are transferred to PCM (Pulse Cod
e Modulation) and records it in the recording area called the PCM area on the magnetic tape, and records the program start signal, program number, and time information called the subcode in the recording area called the subcode area on the magnetic tape Is done. By reading these subcodes during reproduction of the magnetic tape or during high-speed running, the program number and time can be known, and the start of the program can be performed. Here, the program represents a series of recording information. For example, one piece of music is one program when music is taken as an example.

Usually, the program start signal is automatically recorded at the start of recording when recording a program such as music. Further, by pressing the program start signal recording button during recording of the program, the program is recorded when the button is pressed. Incidentally, there may be a case where it is desired to additionally record a program start signal after recording the program. For example, you may want to split a long program. That is, for example, when a concert is recorded, the recording time is several hours and a plurality of songs are recorded. Therefore, by recording the program start signal at the beginning of each music piece, it is possible to easily find the desired music piece.

In order to perform additional recording of the program start signal, a recording area called a PCM area in which a program signal such as a music signal is recorded is left as it is, and the program start signal is recorded in a subcode area for a fixed time.
In the conventional R-DAT, the following method is performed when additionally recording a program start signal.

Play around the position where you want to add the program start signal,
When the program start signal recording button is pressed at the additional desired position, the program start signal is recorded from the time the button is pressed.

Play around the position where you want to add the program start signal,
Press the pause button at the desired addition position to enter the pause state. Subsequently, when the program start signal recording button is pressed, the program start signal is recorded from the position of the pause state.

Play around the position where you want to add the program start signal,
When the program start signal recording button is pressed at the desired addition position, the reproduction is repeated for a predetermined time from the position where the button is pressed. The repetitive playback section can be moved in the magnetic tape playback direction and in the opposite direction. When the button is pressed again after the movement, a program start signal is recorded from the beginning of the repetition playback section.

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention In the R-DAT in which the above-mentioned method is carried out, the program start signal is recorded by pressing the program start signal recording button after hearing the desired position. Due to the delay of the response time, a deviation occurs between the actual recording position and the desired position.

Although the program start signal can be accurately recorded from the paused position, it is relatively difficult to pause at a desired position. Further, since the music signal that can be recognized as a continuous signal is stopped, it is difficult to understand the order of the stopped position.

In, each of the above-mentioned problems has been solved by performing repetitive reproduction and moving the repetitive reproduction section. However, since the program start signal is recorded from the head position of the repetitive reproduction section, it is difficult to understand the relationship between the recording start position of the program start signal and the position before it.

It is an object of the present invention, when setting a recording area for a control signal such as a program start signal, it is possible to clearly indicate the context of the recording scheduled area so that the setting can be easily performed, and the recording scheduled area can be confirmed. An object of the present invention is to provide a recording / reproducing apparatus capable of easily and accurately recording a program start signal in a desired recording area.

Means for Solving the Problem According to the present invention, a recording / reproducing apparatus that sets a recording area in a recording medium in a predetermined order and records recording information and control information for each recording area reads the recording information and the control information. Reading means, recording means for recording predetermined control information, setting means for setting a recording scheduled area of the control information, and storage means for storing the recording scheduled area based on the outputs of the reading means and the setting means And a correction means for correcting the recording-scheduled area, and when the recording medium is reproduced, when the setting means is operated, a predetermined number of recording areas including the recording area that was reproduced at the time of the operation are repeatedly reproduced. At the time of operating the setting means for the second time, the recording area reproduced at the time of operation is set as the recording scheduled area, and the scheduled recording area is stored in the storage means, and at the time of operating the setting means for the third time. The recording / reproducing apparatus is characterized in that the control information is recorded from the scheduled recording area.

Operation According to the present invention, when the setting means is operated during reproduction of the recording medium, a predetermined number of recording areas including the recording area that was being reproduced at the time of operation are repeatedly reproduced. When the setting means is operated again during this repeated reproduction, the recording area that was being reproduced at the time of operation is set as the recording scheduled area, and the recording scheduled area is stored in the storage means.

If the planned recording area of the control information does not coincide with the position desired by the operator, the correcting section corrects the planned recording area. After that, when the setting means is operated again, the control information is recorded for a predetermined time from the planned recording area.

Therefore, when additional recording of the control information is performed, a predetermined number of recording areas including the recording-scheduled area desired by the operator are repeatedly reproduced, and when the setting means is operated again during this repeated reproduction, the reproduction is performed at the time of operation. The previously set recording area is set as the recording scheduled area. Even after setting the recording-scheduled area, the repetitive reproduction operation is repeatedly executed, so that the positional relationship of the recording-scheduled area can be clearly recognized.
As a result, the storage area can be easily corrected by the correction means, and the control information can be accurately recorded at the position desired by the operator.

Embodiment FIG. 1 shows a magnetic recording / reproducing apparatus according to an embodiment of the present invention.
21 is a block diagram illustrating a basic configuration of 21. FIG. The analog signal input from the recording input terminal 1 is converted into a digital signal in an analog / digital converter (hereinafter, A / D converter) 2 after passing through a low-pass filter, and is input to a signal processing circuit 3. In the case of digital recording, a digital signal from the digital input terminal 4 is input to the signal processing circuit 3 via the digital interface 5. The signal input to the signal processing circuit 3 is temporarily stored in the memory 6.

The signal processing circuit 3 calculates two systems of parity check codes of C1 and C2 parity for the stored data, and these parity check codes are also written in the memory 6. On the other hand, subcode information such as a program start signal and a program number sent from the control unit 7 is also written in the memory 6. The signal processing circuit 3 includes a rotating drum 9
When the magnetic heads 9a and 9b attached to the memory trace the surface of the magnetic tape 10, the data written in the memory 6 is sequentially read out, and the 8-10 conversion for converting the 8-bit data into the 10-bit data is performed. And then sync signals and ATF (Autom
atic Track Following) Add a signal and output. The output data is amplified by the recording signal amplifier 8 and recorded on the magnetic tape 10 by the magnetic heads 9a and 9b provided on the rotating drum 9.

At the time of reproduction, the signals read by the magnetic heads 9a and 9b are amplified by a reproduction signal amplifier 11 and then converted into signals of a signal level "1" and a signal level "0" by a comparator. Circuit 3
Given to. A synchronization signal is detected from the data signal provided to the signal processing circuit 3, and 10-bit data
The data is written into the memory 6 after being inversely converted by 8-10 conversion into bit data. On the other hand, the ATF signal is provided to the servo circuit 12.

The signal processing circuit 3 performs error detection, error correction, deinterleaving, interpolation, etc. on the taken-in data, and outputs it to the digital / analog converter (hereinafter, D / A converter) 13 and the digital interface 5. The signal that has passed through the D / A converter 13 is converted into an analog signal, and is output from the reproduction output terminal 14 through the low pass filter.

The subcode data is given to the control unit 7, the program number and the time code are displayed on the display device, and also used as various control data. ATF signal and drive 15
Detection information from various sensors is input to the servo circuit 12, and various motors are controlled. In addition, the drive device 15 performs running control such as reproduction and fast-forward of the magnetic tape 10 based on a control signal from the control unit 7.

A plurality of operation buttons for performing various operations are connected to the control unit 7. In the drawings, the program start signal record button 16, the play button 17,
The rewind button 18 and the fast forward button 19 are shown. Further, a display device is connected to indicate the operating state of the magnetic recording / reproducing device 21. In the drawing, only a program start signal recording indicator (hereinafter, referred to as an indicator) 20 is shown.

The drive unit 15 is composed of a rotary drum 9 to which magnetic heads 9a and 9b are attached, a plurality of motors for running a tape, and various sensors. Servo circuit 12
Controls the above-described motor to perform various running operations such as reproduction, fast-forward, and rewind of the magnetic tape 10.

FIG. 2 is a diagram showing a track pattern of the magnetic tape 10 recorded by the rotary head type magnetic recording / reproducing apparatus 21. The tracks A0, A1, A2,... Are portions recorded by the magnetic head 9a.
2, ... Are read by the magnetic head 9a. Are tracks recorded by the magnetic head 9b, and such tracks B0, B1, B2,... Are read by the magnetic head 9b. The track A0 is divided into a PCM area M and subcode areas S1 and S2. PCM area M
For example, a sound signal and a frame address which is identification information are recorded in, and a program start signal is recorded in the subcode areas S1 and S2. What is a frame address?
It is a sequential number recorded by adding "1", for example, at the time of recording.

The subcode area S1 is divided into a plurality of areas, and the same data is recorded in each area. The subcode area S2 has the same configuration as the subcode area S1. Thus, even if the magnetic tape 10 is run in the normal running direction (the direction of the arrow R1) or in the reverse direction (the direction of the arrow R2) at a running speed several times to several tens times the normal running speed, The areas S1 and S2 can be read. Tracks A1, A2, ... and tracks B0, B
1, B2,... Have the same configuration as the track A0. Track Ai
(I = 0, 1, 2,...) And the track Bi constitute a frame Fi. Hereinafter, the recording area indicates a frame.

FIG. 3 is a flow chart for explaining the recording operation of the program start signal. At step a1, a cassette tape on which a program start signal is to be additionally recorded is set in the magnetic recording / reproducing apparatus 21, and the reproduction button 17 is pressed. As a result, the control unit 7 controls the servo circuit 12 and the driving device 15 to perform the reproducing operation of the magnetic tape 10. Magnetic tape 10
In the reproduction state, the music signal output from the reproduction output terminal 14 is monitored by, for example, a speaker. In step a2, the program start signal recording button 16 is pressed when the portion where the program start signal is to be additionally recorded is reproduced. In step a3, the control section 7 repeats the reproduction of a predetermined number of recording areas including the recording area that was being reproduced when the program start signal recording button 16 was pressed, for example, the number of recording areas corresponding to three seconds before and after. I do.

In step a4, the reproduction signal at the time of the above-described repeated reproduction is monitored, and when the additional recording position of the program start signal is reproduced, the program start signal recording button 16 is pressed again. In step a5, the program start signal record button 16
The frame address, which is the identification information of the recording area being reproduced when is pressed, is stored in the memory in the control unit 7, the indicator 20 is momentarily turned on, and the recording start area of the program start signal is set. Indicates that. This repetitive reproduction operation is repeatedly executed, and when the recording scheduled area of the program start signal is reproduced based on the identification information stored in the memory in the control unit 7, the indicator 20 is momentarily turned on. Thereby, the set recording scheduled area of the program start signal can be confirmed.

If the recording start area of the program start signal is the recording area desired by the operator in step a6,
At a7, the program start signal recording button 16 is pressed. In step a8, the control unit 7 sets the recording mode of the subcode data, controls the signal processing circuit 3 and the driving device 15, and records the subcode data. Then step a9
At, the program start signal is recorded on the magnetic tape 10 from the planned recording area for a fixed time.

In step a6, if the recording planned area of the program start signal is different from the recording area desired by the operator,
In step a10, the recording scheduled area is corrected. For example, if you want to move the area where the program start signal is to be recorded forward, rewind button during repeat playback operation.
Press 18. At this time, the control unit 7 recognizes the rewind button 18 as a forward movement setting button of the recording start area of the program start signal, and every time the rewind button 18 is pressed once, a predetermined time, for example, 0.3 seconds. The identification information of the recording areas located in the front by the number of the recording areas corresponding to is stored in the memory in the control unit 7 again. Where the rewind button
When 18 is pressed a plurality of times, the planned recording area moves by the number of recording areas corresponding to 0.3 seconds × the number of times of pressing. As a result of the above operation, the area where the program start signal is to be recorded is moved forward and set.
The lighting timing of 20 will be earlier than before correction.

In addition, when it is desired to move the area where the program start signal is to be recorded backward, the fast-forward button 19 is used. When the fast-forward button 19 is pressed, the same operation as when the rewind button 18 is pressed is performed, whereby the recording start area of the program start signal can be moved backward.

In this way, the recording-scheduled area of the program start signal can be moved back and forth to set the recording-scheduled area desired by the operator. After that, by pressing the program start signal recording button 16 in step a7, the program start signal is recorded on the magnetic tape 10 from the planned recording area in the same manner as described above.

FIG. 4 is a diagram for explaining the recording operation of the program start signal. The recording operation of the above-described program start signal will be specifically described with reference to FIG. Magnetic tape 10
As shown in FIG. 4 (1), the program start signal is recorded when the portion E1 to be additionally recorded with the program start signal during reproduction of the magnetic tape is reproduced by traveling in the direction of arrow R1. Press button 16. Assuming that the position where the program start signal recording button 16 is pressed is the recording area T1 as shown in FIG. 4 (2), the repeated reproduction of the recording area from the recording area TA to the recording area TB including the recording area T1. Is done. During the repeated reproduction, the recording start area of the program start signal is set while listening to the reproduction signal. As shown in FIG. 4 (3), when the recording area desired by the operator is the recording area T2, the program start signal recording button 16 is pressed after the reproduction signal of the recording area T2 is heard. Since the position where the button is pressed is delayed by the response time from when the reproduction signal is heard until the button is pressed, it becomes the recording area T3 as shown in FIG. 4 (4). Recording area T3
It is confirmed by the indicator 20 that the area has been set as the recording scheduled area, and the position does not match the position desired by the operator. Therefore, it is necessary to perform the correction operation. in this case,
Since the user wants to move the planned recording area forward, pressing the rewind button 18 once moves the planned recording area forward by a predetermined number of recording areas, as shown in FIG. 4 (5). At the position of the recording area T4.

Here again, check the planned recording area with the indicator 20, and if the movement amount is insufficient, rewind button again.
Press 18. As a result, the scheduled recording area moves further forward, and becomes the recording area T5 as shown in FIG. 4 (6).

Here again, the recording planned area is confirmed by the indicator 20 in the same manner, and if it coincides with the recording planned area T2 desired by the operator, the program start signal recording button 16 is pressed. As a result, as shown in FIG. 4 (7), the recording area T5
After that, the program start signal is recorded for a certain time.

As described above, according to the present embodiment, when additional recording of the program start signal is performed, the recording areas before and after including the recording scheduled area are repeatedly reproduced, so that the positional relationship of the recording scheduled area is clearly recognized. can do. As a result, the planned recording area can be easily corrected, and the program start signal can be accurately recorded at the position desired by the operator.

Therefore, when additional recording of the control information is performed, a predetermined number of recording areas including the recording-scheduled area desired by the operator are repeatedly reproduced, and when the setting means is operated again during this repeated reproduction, The recording area that was being played back at the time of operation is set as the scheduled recording area. Even after setting the recording-scheduled area, the repetitive reproduction operation is repeatedly executed, so that the positional relationship of the recording-scheduled area can be clearly recognized.
As a result, the storage area can be easily corrected by the correction means, and the control information can be accurately recorded at the position desired by the operator.

[Brief description of drawings]

FIG. 1 is a block diagram showing a basic configuration of a magnetic recording / reproducing apparatus 21 which is an embodiment of the present invention, FIG. 2 is a diagram showing a track pattern of a magnetic tape 10, and FIG. 3 is a recording operation of a program start signal. FIG. 4 is a flowchart for explaining the recording operation of the program start signal. 3 ... signal processing circuit, 7 ... control unit, 9 ... rotating drum, 9a, 9b ... magnetic head, 10 ... magnetic tape, 12 ...
Servo circuit, 15 …… Drive device, 16 …… Program start signal recording button, 17 …… Play button, 18 …… Rewind button, 19 …… Fast forward button, 20 …… Program start signal recording indicator, 21 …… Magnetic Recording / playback device

Claims (1)

(57) [Claims] 1. A recording / reproducing apparatus that sets recording areas in a recording medium in a predetermined order and records recording information and control information for each recording area, and a reading unit that reads the recording information and the control information. Recording means for recording control information, setting means for setting a scheduled recording area for the control information, storage means for storing the scheduled recording area based on outputs from the reading means and the setting means, and the scheduled recording area When the setting means is operated during reproduction of the recording medium, a predetermined number of recording areas including the recording area reproduced at the time of reproduction are repeatedly reproduced, and the second setting means When the operation is performed, the recording area that was being reproduced at the time of the operation is set as the recording scheduled area, the recording scheduled area is stored in the storage means, and the control information is changed from the recording scheduled area when the third setting means is operated. Recording and reproducing apparatus is characterized in that so as to record.