JPH03278348A - Recording and reproducing device - Google Patents

Abstract

PURPOSE:To simply and accurately record a program starting signal in a desired recording area by storing a set recording expected area in a storage means, repeatedly reproducing recording areas including the recording expected area and recording a bit of control information from the recording expected area set by operating a setting means again. CONSTITUTION:The set recording expected area is stored in the storage means 6, and recording areas including the recording expected area are repeatedly reproduced, and then the control information is recorded from the recording expected area set by the setting means 16 again. At the time of additionally recording the control information, a predetermined number of recording areas before and after the recording expected area to be set first which is inclusive are repeatedly reproduced, so that the positional relationship of the recording expected area can be clearly recognized. By this method, the recording expected area can be easily corrected by correcting means (rewind and fast forward means) 18 and 19, so that the control information can be recorded exactly in a position desired by the operator.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a recording/reproducing system in which control information such as a program start signal indicating the start position of a program, which is a series of recorded information, can be recorded in a specific area of a recording medium. Regarding equipment.

2. Description of the Related Art Conventionally, there has been a rotary head type magnetic recording and reproducing device called R-DAT as one type of recording and reproducing device. In this device, recording signals such as music signals are converted into P CM (P
At the same time, the program start signal, program number, time information, etc. called subcode are recorded in a recording area called subcode area on the magnetic tape. recorded. By reading these subcodes during playback of a magnetic tape or when running at high speed, it is possible to know the program number and time, and also to locate the beginning of the program. Here, a program represents a series of recorded information; for example, in the case of music, one song is one program.

The program start signal is usually automatically recorded at the start of recording when recording a program such as music. Furthermore, by pressing the program start signal recording button during program recording, the program start signal is recorded at the moment the button is pressed. By the way, there may be a case where it is desired to additionally record a program start signal after recording a program. For example, when you want to divide a long program into parts. In other words, for example, when a concert is recorded, the recording time is several hours, and multiple songs are recorded. Therefore, by recording a program start signal at the beginning of each song, it is possible to easily locate the beginning of a desired song.

In order to additionally record this program start signal, a recording area called a PCM area in which program signals such as music signals are recorded is left as is, and the program start signal is recorded in a subcode area for a certain period of time.

In the conventional R-DAT, the following method is implemented when additionally recording a program start signal.

■ Add program start signal Play around the desired position,
When the program start signal recording button is pressed at the desired addition position, the program start signal is recorded from the time the button is pressed.

■ Add program start signal Play around the desired position,
Press the pause button at the desired addition position to make it stop at - time. Subsequently, when the program start signal recording button is pressed, the program start signal is recorded from the position of the - time stop state.

■ Add program start signal Play around the desired position,
When the program start signal recording button is pressed at the desired addition position, the program is repeatedly reproduced for a predetermined time from the position where the button was pressed. This repeat playback section can be moved in the playback direction of the magnetic tape and in the opposite direction, and when the button is pressed again after the movement, a program start signal is recorded from the beginning position of the repeat playback section.

Problem to be Solved by the Invention In the R-DAT in which the above method is implemented, in () the program start signal recording button is pressed after hearing the desired position, and the program start signal is thereby recorded. The delay in response time may cause a discrepancy between the actual recorded position and the desired position.

In addition, although the program start signal can be recorded accurately from the paused position in ■, it is relatively difficult to pause at the desired position, and the music signal, which can be recognized as a continuous signal, is stopped. It is difficult to understand the context of the position.

In (2), each of the problems in (2) and (2) above are solved by performing repeated playback and moving the 8 repeated playback sections. However, since the program start signal is recorded from the beginning position of the repeated playback section, it is difficult to understand the relationship between the scheduled recording position of the program start signal and the previous position.

An object of the present invention is to clearly indicate the context of the scheduled recording area when setting a recording area for a control signal such as a program start signal, thereby making it easier to set the recording area, and also to enable confirmation of the scheduled recording area. It is an object of the present invention to provide a recording/reproducing device capable of simply and accurately recording a program start signal in a desired recording area.

Means for Solving the Problems The present invention provides a recording and reproducing apparatus that sets recording areas in a predetermined order on a recording medium and records recording information and control information for each recording area, and reads the recorded information and control information. A reading means, a recording means for recording predetermined control information, a setting means for setting a recording area for the control information, and a storage means for storing the recording area based on the outputs of the reading means and the setting means. , correction means for correcting the scheduled recording area, and when the setting means is operated during playback of the recording medium, the recording area being played back at the time of the operation is set as the scheduled recording area, and the scheduled recording area is set. A recording characterized in that it is stored in a storage means, a predetermined number of recording areas including a scheduled recording area are repeatedly reproduced, and when the setting means is operated again, control information is recorded from the scheduled recording area. It is a playback device.

According to the present invention, when the setting means is operated during playback of a recording medium, the recording area being played back at the time of the operation is set as a scheduled recording area, and the scheduled recording area is stored in the storage means,
A predetermined number of recording areas including the scheduled recording area are repeatedly reproduced. Since this repetitive reproduction operation is repeatedly executed, the planned recording area can be confirmed.

Here, if the planned recording area of the control information does not match the position desired by the operator, the correction means is operated to correct the planned recording area, and the planned recording area is stored in the storage means according to this correction. will also be changed. Thereafter, when the setting means is operated again, the control information is recorded for a predetermined time from the recording scheduled area stored in the storage means.

Therefore, when additional recording of control information is performed, a predetermined number of recording areas before and after the initially set recording area are repeatedly played back. can be recognized. Thereby, the correction means can easily correct the recording area, and the control information can be accurately recorded at the position desired by the operator.

Embodiment FIG. 1 shows a magnetic recording/reproducing apparatus 2 which is an embodiment of the present invention.
FIG. 1 is a block diagram showing the basic configuration of FIG.

The analog signal input from the recording input terminal 1 passes through a low-pass filter and then passes through an analog/digital converter (
Hereinafter, the signal is converted into a digital signal by an A/D converter (A/D converter) 2 and input to a signal processing circuit 3. In the case of digital recording, the 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.
Stored in

The signal processing circuit 3 calculates two parity check codes of C1 and C2 parity for the stored data, and these parity check codes are also written into the memory 6. On the other hand, subcode information such as a program start signal and a program number sent from the control section 7 is also written into the memory 6. In the signal processing circuit 3, magnetic heads 9a and 9b attached to a rotating drum 9 are connected to a magnetic tape 1.
When tracing the surface of 0, the data written in the memory 6 is sequentially read out, 8-10 conversion is performed to convert 8-bit data to 10-bit data, and a synchronization signal and ATF (Automatic Track Foll) are also used.
owing> signal is added and output. The output data is amplified by a recording signal amplifier 8, and then sent to a rotating drum 9.
The information is recorded on the magnetic tape 10 by magnetic heads 9a and 9b provided on the magnetic tape 10.

During reproduction, the signals read by the magnetic heads 9a and 9b are amplified by the reproduction signal amplifier 11, converted into signals of signal level "1" and signal level "0" by a comparator, and then output as signals through the reproduction clock PLL. The signal is applied to the processing circuit 3.

A synchronizing signal is detected from the data signal applied to the signal processing circuit 3, which is also subjected to 8-10 inverse conversion to convert 10-bit data into 8-bit data, and written into the memory 6. On the other hand, the ATF signal is given to the servo circuit 12.

The signal processing circuit 3 performs error detection, error correction, deinterleaving, interpolation, etc. of the captured data, and converts the data into digital/
It outputs to an analog converter (hereinafter referred to as a D/A converter) 13 and a digital interface 5. The signal passing through the D/A converter 13 is converted into an analog signal, and then sent to the reproduction output terminal 14 via a low-pass filter and an attenuation circuit 22.
is output from. The attenuation circuit 22 adjusts the signal level based on a control signal from the control section 7.

The subcode data is given to the control unit 7, the program number and time code are displayed on the display device, and is also used as various control data. ATF signal and drive device 1
Detection information from various sensors from 5 is sent to the servo circuit 12
The signals are input to and control various motors. Further, based on the control signal from the control unit 7, the drive device 15
It performs running control such as playback and fast forwarding of the magnetic tape 10.

A plurality of operation buttons for performing various operations are connected to the control unit 7. In the drawing, a program start signal recording button 16 and a playback button 17, which are particularly related to the present invention, are connected to the control unit 7.
, indicating a rewind button 18 and a fast forward button 19;
In the drawing in which a display device is connected to represent the operating state of the magnetic recording and reproducing bag W21, only a program start signal recording indicator (hereinafter referred to as an indicator) 20 is shown.

The drive device 15 includes a rotating drum 9 to which magnetic heads 9a and 9b are attached, a plurality of motors for running the tape, various sensors, and the like. The servo circuit 12 controls the above-mentioned motor in order to perform various running operations such as reproducing, fast-forwarding, and rewinding the magnetic tape 1o.

FIG. 2 is a diagram showing a track pattern of the magnetic tape 10 recorded by the rotary head type magnetic recording/reproducing device 21. As shown in FIG. Truck AO, AI.

A2. ... are the parts recorded by the magnetic head 9a, and these tracks AO, AI, A2, ...
* is read by the magnetic head 9a.

Also, tracks BO, B1. B2. . . are portions recorded by the magnetic head 9b, and these tracks BO, Bl, B2 . ... are read by the magnetic head 9b. Track AO is divided into an upper PCM area and subcode areas Sl and S2. For example, an audio signal or a frame address which is identification information is recorded on the PCM area, and a program start signal, for example, is recorded on the subcode areas Sl and S2. The frame address is a sequential number that is incremented by, for example, "1" 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 also has the same configuration as the subcode area S1. As a result, even if the magnetic tape 10 is run in the normal running direction (direction of arrow R1) or in the opposite direction (direction of arrow R2) at a running speed several to several tens of times faster than the normal running speed, the subcode Area 9
1. S2 can be read. Track AI, A2.
...and tracks BO, B1. B2. . . . also has the same configuration as the truck AO. Track Ai (i=0
゜1.2. ) and track Bi are frame Fi
It consists of Hereinafter, the recording area refers to a frame.

FIG. 3 is a flowchart for explaining the recording operation of the program start signal. In step a1, the cassette tape on which the program start signal is to be additionally recorded is set in the magnetic recording/reproducing device 21, and the playback button 17 is pressed.As a result, the controller tHM7 controls the servo circuit 12 and the drive device 15 to playback the magnetic tape 10. When the magnetic tape 1o is in a playback state, the music signal output from the playback output terminal 14 is monitored by, for example, a speaker.

In step a2, the program start signal recording button 16 is pressed when the part for which the program start signal is to be additionally recorded is played back. In step a3, the control unit 7 records the record that was being played when the program start signal recording button 16 was pressed. The area is set as a recording area for a program start signal, and a frame address, which is identification information of this area to be recorded, is stored in the memory in the control unit 7.

In step a4, the servo circuit 12 and the drive device f15 are activated to repeatedly reproduce a predetermined number of recording areas including the scheduled recording area, for example, to repeatedly reproduce a recording area corresponding to 3 seconds before and after the scheduled recording area. Control.

During this repeated reproduction, the control section 7 lights up the indicator 20 when the recording planned area is reproduced based on the identification information stored in the memory, and turns off the indicator 20 at the end of the repeated reproduction section. Such a repetitive reproduction operation is repeatedly executed, and the operator can check the recording area while monitoring the reproduction signal and looking at the indicator 20.

In step a5, if the set recording scheduled area is the recording area desired by the operator, proceed to step a6 and press the program start signal recording button 16 again.
In step a7, the control section 7 sets the recording mode of the subcode data, and sets the recording mode of the signal processing circuit 3 and the drive device 1.
In step a8, the program start signal is recorded from the recording area of the magnetic tape 10 over a predetermined number of recording areas.

In step a5, if the set recording area is different from the recording area desired by the operator, the recording area is changed in step a9. Can be changed freely. For example, if you want to move the recording area of the program start signal in the forward direction (in the direction indicated by arrow R1), press the rewind button 18 during repeated playback. It is recognized as a button for setting the forward movement of the signal recording area, and each time this rewind button 18 is pressed, the recording area is moved forward for a certain period of time, for example, by the number of recording areas corresponding to 0.3 seconds. Shift forward and store the corresponding identification information in memory. Therefore, if you press the rewind button 18 multiple times, the movement close corresponds to the number of presses (here, 0).
゜3 seconds x number of times) movement is possible. As a result of the above operation,
The recording area of the program start signal is set by moving forward, and the timing at which the indicator 20 lights up is also earlier than before the change.

Further, if it is desired to move the recording area of the program start signal in the backward direction (in the direction indicated by the arrow R2), the fast forward button 19 is used. In this case as well, the same operation as when pressing the rewind button 18 is performed, thereby allowing the scheduled recording area to be moved backward.

After moving the planned recording area, the process returns to step a4, where repeated reproduction is continued, and in step a5 it is checked whether it is the desired recording area.

In this way, the recording area of the program start signal can be moved forward or backward to match the recording area desired by the operator. Thereafter, in step a6, by pressing the program start signal recording button 16, the program start signal is recorded on the magnetic tape 10 in the same manner as described above.

FIG. 4 is a flowchart illustrating the repeated reproduction operation of step a4 shown in the third figure. When the program start signal recording button 16 is pressed during playback of the magnetic tape 10,
In step n1, the indicator 20 is turned on. In step n2, it is determined whether the repeat playback section has ended, and if it has ended, in step n3, the indicator 2
Turn off the light.

Thereafter, in step n4, the magnetic tape 10 is rewound, and in step n5, it is determined whether or not it is the start position of a repeat reproduction section.If the answer is affirmative, the magnetic tape 10 is reproduced in step n6. In step n7, it is determined whether the recording area being reproduced is a scheduled recording area, and if the answer is yes, the process returns to step n1 and the indicator 20 is turned on.

FIG. 5 is a diagram for explaining the recording operation of the program start signal. The additional recording operation of the program start signal mentioned above will be specifically explained with reference to FIG. magnetic tape 1
0 is played by running in the direction of arrow R1 as shown in FIG. 5(1). In this playback state, when the recording area T1 to which no program start signal is added is played back, the program start signal recording button 16 is pressed. In reality, the button 16 is pressed when reproducing the recording area T2, and the identification information of the recording area T2 is stored in the memory in the control unit 7. After that, recording areas TA are located in the forward direction (indicated by arrow R1) by a predetermined number from recording area T2, and recording areas TA are located in the backward direction (indicated by arrow R2) by a predetermined number from recording area T2. Reproduction is performed repeatedly between the area TB and the area TB.

The position of this recording area T2 is confirmed by the indicator 20 as the area where the program start signal is scheduled to be recorded, and it can be seen that it does not match the recording area desired by the operator, so it is necessary to perform a correction operation. In this case, since you want to move the scheduled recording area forward, press the rewind button 18 1
Press twice. As a result, the scheduled recording area moves forward by a predetermined number of recording areas, as shown in FIG. However, if the amount of movement is insufficient, press the rewind button 18 again. This moves the recording area further forward, as shown in Figure 5 (4).
As shown in the figure, the recording area T4 becomes the recording planned area.

Here, the planned recording area is confirmed again using the indicator 20, and if it matches the recording area T1 desired by the operator, the program start signal recording button 16 is pressed, and the program start signal recording button 16 is thereby activated as shown in FIG. 5 (5). , a program start signal is recorded for a predetermined time from the recording area T4.

According to the present embodiment, when additional recording of a program start signal is performed, the previous and subsequent records including the recording scheduled area set when the program start signal recording button 16 is first pressed are recorded. Since the area is repeatedly reproduced and the planned recording area can be confirmed by the indicator 20, the positional relationship of the planned recording area on the magnetic tape can be clearly recognized.

As a result, it is possible to easily correct the recording area, and the program start signal can be recorded accurately from the recording area desired by the operator.

Further, the scheduled recording area can be changed by simply operating the rewind button 18 or the fast forward button 19, and the scheduled recording area can be corrected with a simple operation.
Operability and convenience are greatly improved.

FIG. 6 is a flow chart for explaining another embodiment of the present invention. The feature of this embodiment is that in the repetitive reproduction operation of step a4 in FIG. 3 described above, the output level of the reproduction signal is changed during reproduction of the recording planned area.

When the program start signal recording button 16 is pressed during playback of the magnetic tape 10, the indicator 2 is turned on in step m1.
0 lights up. In step m2, it is determined whether the repeat reproduction section has ended, and if it has ended, the indicator 20 is turned off in step m3. Thereafter, in step m4, the magnetic tape 10 is rewound, and in step m5, it is determined whether or not it is the start position of a repeat playback section.
If affirmative, proceed to step m6.

When the magnetic tape 10 is reproduced in step m6, the output level of the reproduced signal is reduced and outputted in step m7. In step m8, it is determined whether the recording area being reproduced is a scheduled recording area.

If the determination is affirmative, the output level of the reproduced signal is increased to a normal output in step m9, and the process returns to step m1 to turn on the indicator 20 again.

Here, with reference to FIG. 5, the recording operation of the above-mentioned program start signal will be specifically explained. The magnetic tape 10 is played by being run in the direction of arrow R1, as shown in FIG. 5(1). The operator presses the program start signal recording button 16 when the recording area T1 in which the program start signal is to be additionally recorded is reproduced.At this time, the operator presses the program start signal recording button 16 after asking for the reproduction signal. Therefore, the recording area T2, which is after the scheduled recording area T1 by the response time until the operator presses the button, is set as the scheduled recording area, and the identification information of this recording area T2 is stored in the memory in the control unit 7. be done.

Thereafter, the control unit 7 repeatedly reproduces the recording area from the recording area T2 to the recording area TA that is a predetermined number of times before, and from the recording area TB that is a predetermined number of times after the recording area T2.

The recording area T2 is recognized as i1 when the playback output level changes or the indicator 20 lights up.
The operator can see that it does not match the desired recording area T1, so he performs a correction operation. In this case, he wants to move the recording area forward, so he presses the rewind button 18 once. As shown in FIG. 3, the scheduled recording area moves forward and reaches the position of recording area T3.

Here again, the playback output level changes or
The position of the recording area T3 is confirmed by where the indicator 20 lights up, and if the amount of movement is insufficient, the rewind button 18 is pressed again. As a result, as shown in FIG. 5(4), the recording area becomes the recording area T4.

Here, as described above, depending on where the playback output level changes or where the indicator 20 lights up,
After confirming the position of the recording area T4, if it matches the recording area desired by the operator, press the program start signal recording button 16. As a result, as shown in FIG. 5 (5), the recording area T4 is A program start signal is recorded for a certain period of time.

As described above, according to this embodiment, when performing additional recording of a program start signal, the recording areas before and after the set recording scheduled area are repeatedly reproduced, and the recording scheduled area is indicated by the indicator 20. Since this is confirmed by the lighting and changes in the playback output level, the positional relationship of the scheduled recording areas can be clearly recognized. Thereby, the recording planned area can be easily corrected, and the program start signal can be recorded accurately at the position desired by the operator.

Effects of the Invention As described above, according to the present invention, when additional recording of control information is performed, a predetermined number of recording areas before and after the initially set recording area are repeatedly reproduced. ,
It is possible to clearly recognize the positional relationship of the recording planned areas. Thereby, the correction means can easily correct the recording area, and the control information can be accurately recorded at the position desired by the operator.

[Brief explanation of the drawing]

FIG. 1 shows a magnetic recording/reproducing device 21 which is an embodiment of the present invention.
A block diagram showing the basic configuration of the magnetic tape 1.
3 is a flowchart for explaining the recording operation of the program start signal, FIG. 4 is a flowchart for explaining the repeat playback operation, and FIG. 5 is a flowchart for explaining the recording operation of the program start signal. FIG. 6 is a flow chart for explaining another embodiment of the present invention.

Claims (1)

[Claims] A recording and reproducing device that sets recording areas in a predetermined order on a recording medium and records recording information and control information for each recording area, comprising: a reading means for reading the recorded information and control information; a recording means for recording predetermined control information; a setting means for setting a scheduled recording area for the control information; a storage means for storing a scheduled recording area based on the outputs of the reading means and the setting means; When the setting means is operated during playback of the recording medium, the recording area being played back at the time of the operation is set as a scheduled recording area, and the scheduled recording area is stored in the storage means. A recording/reproducing apparatus characterized in that a predetermined number of recording areas including a scheduled recording area are repeatedly reproduced, and when the setting means is operated again, control information is recorded from the scheduled recording area.