JPH06215543A - Recording/reproducing device - Google Patents

Abstract

PURPOSE:To read a control program, circuit data and reference data recorded on a recording medium beforehand, eliminate the necessity of a previous recording in a ROM, to reduce a burden on a memory, to improve services to a user and to simplify a maintenance. CONSTITUTION:A controlling signal is recorded/reproduced by a control head 11 and the traveling of a magnetic tape is controlled by a tape traveling controlling section 7. Then, the duty of a control signal reproduced at a demodulation circuit 32 is detected, converted into logic data in accordance with the duty and the pulse width of the control signal is modulated by a modulation circuit 19 in accordance with logic data from a microcomputer 18. By the microcomputer 18, logic data from the demodulation circuit 32 are stored in a RAM 26 in sequence, various controllings are carried out in accordance with these contents and via a modulation circuit 31, data recorded in the RAM 26 is recorded on the magnetic tape as a control signal.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a recording / reproducing apparatus such as a VTR, and in particular, a microcomputer (hereinafter simply referred to as a microcomputer) incorporated in the recording / reproducing apparatus performs various controls of the recording / reproducing apparatus. In some cases,
A part of the control program of the microcomputer and / or the data referred to by the control program are read out through a recording medium,
The present invention relates to a recording / reproducing device which is adapted to perform a certain specific control.

The present invention also relates to a recording / reproducing apparatus for recording a part of data referred to by a control program of a microcomputer on a recording medium and confirming the state of the recording / reproducing apparatus through the recording medium.

[0003]

2. Description of the Related Art Recently, recording / reproducing devices such as VTRs have become multifunctional, and a user operates a setting key on an operation panel to register various setting data to meet the needs of the user. It has become possible to have a certain function.

That is, a microcomputer is installed in the recording / reproducing apparatus and various functions can be performed with a minimum hardware configuration by executing a control program registered in the ROM. Then, the user is made to perform the function selection and the initial setting of the data referred to by the control program so that the function corresponding to the user's needs can be performed.

[0005]

By the way, initial setting such as time setting and receiving channel setting is not frequently performed, and if the recording / reproducing apparatus is purchased, it is usually rarely performed thereafter. For example, in the time setting, an initial setting program for registering numerical data and day of the week data input by key input in a time table referred to by a control program of a microcomputer is executed. When is finished, it is rarely started.

In the setting of the receiving channel, the optimum receiving channel is automatically selected by setting the area in which the user will use the key input. Since it is not known which one to select, it is necessary to register the information on the broadcasting stations and the optimum receiving channels for all areas in, for example, the fixed data area of the ROM. Moreover, information other than the area set by the user is usually never used.

As described above, in the conventional recording / reproducing apparatus, in order to ensure the function, the control program which is not frequently used and the reference data which is never used must be registered in the memory, which imposes a great burden on the memory. There was a problem that was.

[0008] Further, as the recording / reproducing apparatus becomes multifunctional,
The contents set by the user have become complicated, and malfunctions due to mistakes made by the user are becoming common. In this case, bring the recording / reproducing device itself into the factory, check the settings and the failure of the microcomputer, and if there is a setting error, notify the user to that effect, and again notify the user of the recording / reproducing device. There is a problem in that it requires time and effort for shipping, there is a limit to the improvement of services for users, and maintenance on the maker side becomes very complicated.

Furthermore, when changing the function of the recording / reproducing apparatus, the recording / reproducing apparatus is changed by changing the internal ROM, programmable logic device, so-called PLD, or the like, thereby changing the program, changing the circuit, modifying the board, or changing various types. It will be necessary to readjust the volume. In this case as well, if it is difficult for the user to deal with the problem, it is necessary to dispatch a service person, for example, as maintenance on the maker side, as described above. In addition to such function changes and function additions, all the functions must be incorporated in advance in a circuit or ROM on the board in order to realize the different functions of the above-mentioned multi-functions.

The present invention has been made in view of the above problems. An object of the present invention is to read a control program, circuit data, and reference data recorded in a recording medium in advance, and to use the read data as a basis. For example, it is an object of the present invention to provide a recording / reproducing apparatus capable of performing control relating to initial setting and the like, and reducing the burden on the memory without having to previously register the control program, circuit data, reference data, etc. in the memory. .

Further, according to the present invention, for example, information about a system check by a microcomputer and a part of data referred to by a control program can be recorded in a recording medium. It is an object of the present invention to provide a recording / reproducing apparatus which can improve service for users and simplify maintenance by making it possible to confirm recorded data.

[0012]

A recording / reproducing apparatus of the present invention records information data, and a control program,
A recording medium in which at least one of circuit data and reference data is recorded as a code, reproducing means for reading out the code from the upper recording medium (for example, control head 11, reproducing amplifier 12, and demodulation circuit 32), and this reproducing means Storage means for storing the code (for example, the microcomputer 1
8) RAM 26) and control means (for example, the microcomputer 18 and the tape running control section 15) for performing control according to the code stored in the storage means.

Here, the information data is video data and / or audio data. As the upper recording medium, a magnetic tape is generally used, but a memory is mounted on a cassette case on which the magnetic tape is mounted to supply at least one code of control program, circuit data, and reference data. It may be configured.

In this case, the code may be recorded in the control area of the recording medium, or may be recorded in the video data recording area and / or the audio data recording area of the recording medium. When the recording medium is a magnetic tape, the code may be recorded on a control track of the magnetic tape as a control signal having a duty corresponding to each logical value.

Further, according to the present invention, the control means (for example, the microcomputer 18 and the tape running controller 1) for controlling the recording / reproducing apparatus main body based on the control data registered in the memory (for example, the RAM 26 and the ROM 27 of the microcomputer 18).
In the recording / reproducing apparatus having 5), recording means (for example, the modulation circuit 31, the recording amplifier 16 and the control head 11) for writing the control data registered in the memory into the recording medium is provided.

In this case, the control data may be recorded in the control area of the recording medium, or may be recorded in the video data recording area and / or the audio data recording area of the recording medium. When the recording medium is a magnetic tape, the control data may be recorded on the control track 2 of the magnetic tape as a control signal having a duty corresponding to each logical value.

This recording / reproducing apparatus supplies the above-mentioned various data as a code, and when the specification is changed, by making a software change or a hardware change, another new data can be obtained by using this code. The device is made to function as a device having a function, or the circuit configuration incorporated in the device is changed.

[0018]

In the recording / reproducing apparatus according to the first aspect of the present invention, the reproducing means first reads the code from the recording medium, and the read code is stored in the storing means.
Then, the control means performs control according to the stored code. For example, when the control program for executing the time setting is recorded on the recording medium, the reproducing unit reads the control program and stores it in the storage unit. The control means executes the stored control program relating to the time setting, and registers the time data and the day of the week data, which the user has input by key input, for example, as user setup data in the time table. After registration, the occupation of the time setting program in the storage means is released.

Further, when the recording medium records data relating to the receiving channel, for example, the reproducing means reads the data and stores it in the storage means. The control means selects the optimum receiving channel according to the area used by the user based on the stored data concerning the receiving channel. After this selection, the occupancy of the data in the storage means is released, as in the above.

Further, since the control program and data are recorded together with the video data and the audio data, the video and the audio such as the operation procedure relating to the time setting and the receiving channel setting are output to the monitor when read by the reproducing means. It becomes possible to do.

In addition, at least one of the control program, circuit data, and reference data recorded on the recording medium is reproduced as a code by the reproducing means, and the code is supplied to the storing means to set, for example, an electronic volume. It is possible to efficiently and easily perform the setting change, the scramble key code, the quantization table, and the special effect processing such as the wipe which is one of the special effects.

Next, in the recording / reproducing apparatus of the present invention according to claim 5, the control data registered in the memory is
The recording means writes the recording medium. Here, when the control data registered in the memory is, for example, various setting data set by the user by key input, the setting data is recorded in the recording medium.

Therefore, for example, an erroneous operation due to a setting error by the user can be easily confirmed by simply reproducing the recording medium without bringing the recording / reproducing apparatus itself into the factory. Further, it is possible to record the data regarding the system check by the microcomputer together with the above setting data. In this case, in addition to malfunctions due to the above setting mistakes, malfunctions of the microcomputer can be easily diagnosed by self-diagnosis.

Further, according to the present invention, at least one data of the control program, the circuit data, and the reference data recorded in the recording medium is reproduced as a code by the reproducing means, and the code is supplied to the storing means, and is stored in the storing means. By using the supplied code, the recording / reproducing apparatus is controlled by the control means, for example, the central processing unit, the digital signal processor or the like, so that a new operation or processing can be performed.

Further, at least one data of the control program, the circuit data, and the reference data recorded in the recording medium is reproduced as a code by the reproducing means, and the code supplied to the storing means is used, for example, a programmable logic device. It is possible to change the internal wiring according to the control means and use this programmable logic device as a device having a new function.

[0026]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The principle structure and more specific embodiment of an embodiment in which the recording / reproducing apparatus according to the present invention is applied to a VHS compatible VTR will be described below with reference to FIGS.

In principle, the VTR of this embodiment is a recording medium for recording video data and / or audio data as information data and recording at least one of a control program, circuit data, and reference data as a code. V
As a reproducing means for reading the code from the TR cassette and the VTR cassette, for example, a control head, a reproducing amplifier and a demodulating circuit are provided as a reproducing section. Further, the VTR is provided with a memory, so-called RAM, as a storage unit for storing the code read out by the reproducing unit, and has a control unit as a control unit for performing control according to the code stored in the RAM.

VT used in the VTR according to this embodiment
As shown in FIG. 1, the recording format of the magnetic tape T incorporated in the R cassette has fixed head tracks 1 and 2 arranged on both sides in the width direction of the tape, and a helical track 3 arranged in the center portion in the width direction. . In the fixed head tracks 1 and 2, the upper fixed head track 1 in the drawing constitutes two audio tracks 1a and 1b, and the right and left audio signals are recorded respectively. The other fixed head track 2 (lower side in the drawing) constitutes a control track, and a control signal used for capstan control or the like is recorded. Further, on the helical track 3, a video signal for one field is recorded.

For the audio tracks 1a and 1b, an audio signal is recorded and reproduced via an audio head, and for the control track 2,
A control signal is recorded and reproduced via the control head, and a video signal is recorded and reproduced on the helical track 3 via the rotary head (reproducing head and recording head).

As shown in FIG. 2, the VTR according to the first embodiment has a control head 11 for reproducing and recording a control signal on a control track 2 of a magnetic tape T, and a control signal from a reproducing amplifier 12. (In particular, signal rising timing) and reproducing head 13
A tape running control section 15 for performing servo control of a capstan or the like based on a phase difference from a vertical synchronizing signal supplied via a sync separating circuit 14 for extracting a vertical synchronizing signal from a reproduced video signal from the control head 11. A first selector switch 17 for selectively switching electrical connection between the recording amplifier 16 and the reproduction amplifier 12, and the recording amplifier 16 and the tape running controller 15 or a microcomputer (hereinafter, simply referred to as a microcomputer) 18. A second changeover switch 19 for selectively changing over the electrical connection.

Further, the VTR is provided with a third changeover switch 21 for selectively switching the vertical sync signal from the sync separation circuit 14 and the vertical sync pulse from the oscillator 20 and supplying it to the tape running controller 15. Have. The sync separation circuit 14 is a reproduction system image processing circuit 2 for image-processing a reproduction video signal from the reproduction head 13 and outputting it to a monitor.
It is built into 2.

The microcomputer 18 is provided with an input means 23 such as an operation panel or a remote controller in which keys indicating operation instructions (for example, a numeric keypad for numerical value setting, reproduction, fast forward, rewind, stop, etc.) are arranged, and this input. A display means 24 for displaying the attributes of the keys (contents of operation instructions, etc.) input by the means 23 is connected.

The control signal from the reproduction amplifier 12 is sent to the microcomputer 18 via the contact a and a demodulation circuit described later.
Is also entered. The microcomputer 18 internally has an input / output port (I / O) for inputting / outputting data.
Port) 25, a RAM 26 for storing input data and control programs, a ROM 27 in which preset control programs and fixed data are registered, a calculation unit 28 for performing various calculations, and control of these circuit units. Control unit 29
Have and.

The first, second and third changeover switches 17, 19 and 21 are changed over by a changeover signal from the microcomputer 18, respectively. That is, the first changeover switch 17 controls the movable contact 17a on the control head side and the fixed contact 17a on the recording amplifier side based on the changeover signal from the microcomputer 18 at the time of recording the control signal.
And are electrically connected, and when the control signal is reproduced,
Based on a switching signal from the microcomputer 18, the movable contact 17a on the head side and the fixed contact 17c on the reproduction amplifier side are switched so as to be electrically connected.

Further, the second changeover switch 19 is supplied with a changeover signal from the microcomputer 18 in response to a data dump request from the input means 23 during recording of the control signal, whereby the movable contact on the recording amplifier side. 1
9a and the fixed contact 19c on the microcomputer side are switched so as to be electrically connected, and a switching signal is supplied from the microcomputer 18 based on completion of output of a code to be described later from the microcomputer 18, so that the recording amplifier side The movable contact 19a and the fixed contact 19b on the tape running control side are switched so as to be electrically connected.

Further, the third changeover switch 21 is similar to the first changeover switch 17 in that when the control signal is recorded, the third changeover switch 21 is connected to the movable contact 21a on the side of the tape running control unit based on the changeover signal from the microcomputer 18. The fixed contact 21b on the oscillator side is electrically connected, and when the control signal is reproduced, the movable contact 21a on the tape running control side and the fixed contact 21c on the sync separation circuit side are connected based on the switching signal from the microcomputer 18. It is switched to be electrically connected.

During reproduction of the magnetic tape T, the control signal recorded on the control track 2 of the magnetic tape T is supplied to the tape running control section 15 through the control head 11. The tape running control unit 15 controls the capstan or the like according to the phase difference between the vertical synchronizing signal supplied from the synchronizing separation circuit 14 and the control signal to correct the tracking.

In the VTR according to the first embodiment, in addition to predetermined operation instructions (reproduction request, rewind request), for example, at the time of initial setting such as time setting and receiving channel setting, as will be described later. Numerical data input via the input means 23 is supplied to the microcomputer 18. That is, these numerical data are transmitted to the RA via the I / O port 25 and the control unit 29 in the microcomputer 18.
It is written in the setting data table allocated in M26.

Further, the microcomputer 18 reads the numerical data written in the RAM 26 according to the data dump request from the input means 23, and further adds a header to the head of the numerical data and an end code to the end of the numerical data to code the data. Is generated and output to the control head 11 side. That is, in response to the data dump request, the control unit 29
Numerical data is read from the setting data table of the RAM 26 via the arithmetic unit 28, and a header is added to the head of the read data and an end code is added to the end of the read data.

Then, the header, the numerical data, and the end code are sequentially output as a series of binarized data (logically "1" and "0" data). In the first embodiment, in addition to the above-mentioned numerical data, the OS of the microcomputer, especially the error check data of the device written in the system check table, is also sequentially output as the binarized data.

Further, in the VTR according to the first embodiment, the modulation circuit 31 is inserted between the recording amplifier 16 and the second changeover switch 19, and the demodulation circuit 32 is inserted between the reproduction amplifier 12 and the microcomputer 18. ing.

The modulation circuit 31 generates a control signal (see FIG. 3B) Sc based on the vertical synchronizing signal (see FIG. 3A) VD supplied through the sync separation circuit 14, and further generates a reference clock (from the clock generating circuit 33) ( 3C) The pulse width of the control signal Sc is modulated based on the code C (header H and numerical data Dc: see FIG. 3D) from the microcomputer 18 supplied via Pc and the second changeover switch 19. Then, a command signal (see FIG. 3E) Sp according to the conventional so-called VASS is created.

That is, the control signal Sc generated in the modulation circuit 31 is a signal which rises at the same time when the vertical synchronizing signal VD falls, and normally, in the tape running control section 15, it is based on the rise of this control signal Sc. Thus, the running of the magnetic tape T is controlled. However, the fall timing of the control signal Sc is not used at all. Therefore, in this example, according to the concept of VASS, the pulse width is modulated so that the duty of the control signal Sc corresponding to “0” is 60%, and the duty of the control signal Sc corresponding to “1” is changed. The pulse width is modulated to be 27.5%. In this case, as shown in the figure, the control signal after pulse width modulation (that is, the command signal)
The rising timing of Sp is the same as the falling timing of the vertical synchronization signal VD.

The command signal Sp generated by the modulation circuit 31 is supplied to the control head 11 via the recording amplifier 16 and recorded on the control track 2 of the magnetic tape T as a control signal. Particularly, the recording of the command signal Sp through the modulation circuit 31 is performed only when the data dump request is input from the input means 23, and in the normal case (when the dump request is not input),
Initial data (logically “0” data, which does not correspond to the header H) from the tape running control unit 15 is transmitted through the second changeover switch 19 to the modulation circuit 31.
Is supplied to.

This initial data is supplied to the modulation circuit 31 at the output timing of the vertical synchronizing pulse from the oscillator 20. Therefore, in this case, a control signal (initial signal) having a duty of 60% is recorded on the control track 2 of the magnetic tape T via the recording amplifier 16 and the control head 11 in synchronization with the vertical synchronizing pulse.

On the other hand, the demodulation circuit 32 determines the duty of the control signal supplied via the control head 11 and the reproduction amplifier 12 based on the reference clock from the clock generation circuit 33, and determines each control signal as logical data. Is to be converted to. That is, when the duty of the control signal is 60%, logical data "0" is generated, and when the duty of the control signal is 27.5%, logical data "1" is generated.
The generated logic data is supplied to the microcomputer 18.

The microcomputer 18 sequentially reads the logical data from the demodulation circuit 32 and first detects the header H.
This detection is performed by the arithmetic unit 28. Then, after detecting the header H, the data sent thereafter is written in the RAM 26 via the control unit 29.

With such a configuration, it becomes possible to allow the VTR to operate with a plurality of various functions described below. As a more specific example of the first embodiment, for example, a time initialization program is read from the magnetic tape T and the program is executed, or an optimum receiving channel corresponding to the entire area used from the magnetic tape T is read. The case of reading out the data will be described with reference to FIGS.

As shown in FIG. 4, for example, an image Va for explaining the operating procedure for setting the time and an image Vb for explaining the operating procedure for setting the receiving channel are recorded, and at the same time, these images V are recorded.
A code Ca relating to time setting and a code Cb relating to receiving channel setting are recorded on the control tracks 2 corresponding to a and Vb, respectively.

The code Ca relating to the time setting is a coded program for inputting the current time and registering the input numerical data in the time table in the OS of the microcomputer 18. This code C
To record a on the magnetic tape T, for example, in the circuit configuration of FIG.
Once registered in the RAM and recorded with the video camera, RAM
The control track 2 of the magnetic tape T is read by reading the program from the reference numeral 26 and sequentially modulating the pulse width of the control signal on the basis of the logical data constituting the program.
You can record it in. Also in this case, the header H is added to the beginning of the program, and the end code E is added to the end.
An execution code C indicating an address on the RAM 26) is recorded.

On the other hand, the code Cb relating to the setting of the receiving channel is, for example, a coded information regarding the broadcasting stations and the optimal receiving channel relating to all the areas.
a is recorded on the track following the track on which a was recorded.
That is, image data Vb indicating the operation procedure for setting the receiving channel is recorded in the next track, and reference data Cb of the optimum receiving channel for each region is recorded in the control track 2 relating to the image data Vb. It The recording method in this case can also be performed in the same manner as in the case of the above time setting. In this example, since the code recorded on the magnetic tape T is not the program but the reference data, the execution code C indicating the execution address recorded together with the end code E is the reception channel setting program registered in the ROM 27. It is a code indicating the first address of the.

A final code for requesting "stop &rewind" is recorded in the final portion of the magnetic tape T on which the image data and control signal (command signal) relating to these initial settings are recorded.

Then, by reproducing the magnetic tape T on which the time setting image and the channel setting image are recorded, the time setting and the channel setting are performed on the user side. This operation will be described based on the conceptual diagram of FIG. 4 and the flowchart of FIG. 5. First, by inputting a reproduction request through the input means 23, the microcomputer 18 sends a normal reproduction request signal to the tape running control unit 15. Is output. The tape running control unit 15 starts the playing running of the magnetic tape T based on the normal playing request signal from the microcomputer 18 (step S1).

By reproducing the magnetic tape T, for example, the guide image described in the operating procedure for setting the time is displayed on the monitor (step S2). Simultaneously with the display of this guide image, the control signal recorded on the control track 2 of the magnetic tape T is read out through the control head 11 and supplied to the demodulation circuit 32 and the tape running control unit 15. The tape running control unit 15 controls the capstan or the like according to the phase difference between the vertical synchronizing signal supplied from the synchronizing separation circuit 14 and the control signal to correct the tracking.

The control signal supplied to the demodulation circuit 32 is sequentially converted into logic data by the demodulation circuit 32 and supplied to the microcomputer 18 of the next stage. Microcomputer 18
Is the header H from the logical data sent in sequence.
Is detected (step S3). When the header H is detected, the routine proceeds to step 4, where the code after the header H (in this case, the program for time setting) is read through the control unit 29 and stored in the program area on the RAM 26 (step S5). . This storage is performed until the end code E is detected (step S6).

After the end code E is detected, the code (execution code C) in which the head address of the execution program is recorded is detected (step S7). The microcomputer 18 outputs a stop request signal to the tape running controller 15 based on the detection of the execution code C. Tape running controller 15
Stops the running of the magnetic tape T based on a stop request signal from the microcomputer 18 (step S8).

Next, the microcomputer 18 transfers control to the head address of the program indicated by the execution code C, and the RAM 26
The time setting program written in is activated (step S9). By the activation of this program, the display means 2
A display prompting the time setting is displayed at 4. The user will set the time while referring to the guide image and the instruction manual regarding the operation procedure of the time setting that was just watched. This setting is normally performed by inputting numerical data with the ten keys. This time setting is handled as one user setup data set by the user.

The inputted numerical data, that is, time data, is registered in the time table referred to by the OS of the microcomputer 18 by the operation of the program. From this registered time data, the time will be updated thereafter. This update program is written in the ROM 27 and is activated, for example, every one second to update the contents of the time table.

Next, when the input of the time data is completed (for example, when the set key is operated), the microcomputer 18 outputs a normal reproduction request signal to the tape running control unit 15. The tape running controller 15 starts playing the magnetic tape T on the basis of a stop request signal from the microcomputer. As a result, the magnetic tape T is normally reproduced again (step S10).

If the data of the guide image relating to another initial setting is recorded on the next track of the magnetic tape T, the guide image is displayed by the above reproduction (step S11). In the example of FIG. 4, an image regarding the operation procedure of the reception channel is displayed on the monitor. In addition,
After the guide images for all the initial settings are displayed, the reproduction does not display the guide images, that is, the process in step S11 is not performed. Therefore, in the flowchart of FIG. 5, step S1
The part 1 is shown in parentheses for convenience.

Then, in the next step S12, the logical data from the control track 2 of the magnetic tape T is sequentially read to determine whether it is the final code. If it is not the final code, that is, if the code related to the next initial setting is recorded, the process returns to step S3,
Detect the header H in that code.

When the header H is detected, the next step S
4, the data after the header H (reference data for receiving channel setting in this case) is read, and the control unit 29
It is written in the data area on the RAM 26 via (step S5). This writing is performed until the end code E is detected (step S6). Thereafter, similarly to the case of setting the time, the execution code C is detected (step S7), and the microcomputer 18 sends a stop request signal to the tape running controller 15 based on the detection of the execution code C. Output. The tape running controller 15 stops the running of the magnetic tape T based on the stop request signal from the microcomputer 18 (step S8).

Next, the microcomputer 18 transfers the control to the head address indicated by the execution code C, and starts the reception channel setting program on the ROM 27 unlike the case of time setting (step S9). When this program is activated, a display prompting the reception channel setting is displayed on the display means 24. The user sets the area to be used by referring to the guide image and the instruction manual regarding the operation procedure of the reception channel setting that was just watched. This setting also
Usually, this is done by inputting numerical data with the ten keys.

The channel setting program is the RAM 26
The input numerical data, that is, the channel data corresponding to the regional data is selected from the reference data written in, and is registered in the channel setting data area referred to by the OS of the microcomputer 18. At this time, RAM
The reference data written in the 26 data area will be discarded.

Next, when the input of the area data is completed (for example, when the set key is operated), the microcomputer 18 outputs a normal reproduction request signal to the tape running controller 15. The tape running control unit 15 includes a microcomputer 18
The reproduction running of the magnetic tape T is started based on the reproduction request signal from the. As a result, the magnetic tape T is normally reproduced again (step S10). As already described above, when the guide images related to all the initial settings are displayed, the guide images are not displayed in step S11, and the process directly proceeds to step S12.
Then, in this step S12, the final code is detected.

The microcomputer 18 outputs a stop request signal and a rewind request signal to the tape running controller 15 based on the reading of the final code. Tape running controller 15
Stops the magnetic tape T based on the stop request signal and the rewind request signal from the microcomputer 18, and further rewinds (step S13). This completes all initial setting operations.

In the first embodiment, the code recorded on the magnetic tape T is read while reproducing the image data, and the desired program or reference data is read out from the RAM 26.
Although the example in which the initial setting is performed by writing the data in the above is shown, the reverse operation, that is, the data registered in the RAM 26 or the ROM 27 can be recorded in the magnetic tape T as described above.

In the first embodiment, the RA of the optimum receiving channel for all areas recorded on the control track 2 of the magnetic tape T is read.
It was stored in M26, but in addition, the factory prepares a plurality of magnetic tapes on which the data of the optimum receiving channel corresponding to each region is recorded, and the user can record the information necessary for himself. Select the magnetic tape that is playing and play this magnetic tape. In this case, by creating a program so that the read data is registered as it is in the channel setting data area referred to by the OS of the microcomputer 18, the necessary channels can be easily registered without inputting numerical data by key input. can do.

Next, the RAM 26 or ROM 27
FIG. 6 shows the operation when recording the above data on the magnetic tape T.
The description will be made based on the conceptual diagram of FIG.

The recording of this data is started by operating, for example, a dump request key on the input means 23 (step S1). Based on the data dump request from the input means 23, the microcomputer 18 controls the tape running controller 1
5, the recording request signal is output. The tape running controller 15 runs the magnetic tape T normally based on the recording request signal from the microcomputer 18 (step S2).

At the same time, the microcomputer 18 operates the ROM 2
Start the dump program registered in 7. In this program, for example, the head address of the data area on the RAM 26 to be dumped is written, and the dump program sequentially reads the data from the head address and outputs it to the control unit 29 (step S3). A header H is added to the head of the data supplied to the control unit 29, and the data is sequentially output to the series as logical data through the control unit 29.

This data includes, for example, initial settings registered by the user (time setting data, receiving channel setting data, etc.), and error data of the entire system detected by the system check of the microcomputer.

The above data with the header H added is
The control signal, which is supplied to the modulation circuit 31 via the second changeover switch 19 and rises in accordance with the output timing of the vertical synchronizing pulse from the oscillator 20, has a pulse waveform whose pulse width is modulated based on the sequentially supplied logical data. It is converted into a command signal Sp. The command signal Sp is sequentially recorded as a dump signal on the control track 2 of the magnetic tape T via the recording amplifier 16 and the control head 11 (step S).
4).

The recording of the dump signal is performed until the end of the data read by the program, that is, the EOF code is detected (step S5).

When the EOF code is detected, the microcomputer 18 outputs the end code E to the modulation circuit 31 side and, at the same time, outputs a recording stop request signal to the tape running controller 15. At this point, on the control track 2 of the magnetic tape T, the end code E is recorded next to the dump signal. At the same time, the tape running control unit 15 determines, based on the recording stop signal from the microcomputer 18,
The normal running of the magnetic tape T is stopped (step S6). At this stage, the execution of the dump program ends, and the data dump operation ends (step S7).

After that, the microcomputer 18 outputs a rewinding request signal to the tape running controller 15, for example. The tape running control unit 15 rewinds the magnetic tape T based on the rewinding signal from the microcomputer 18, and the entire dumping operation ends (step S8).

In the first embodiment described above, it is assumed that the magnetic tape T is run at the same time when the dump request key in the input means 23 is operated. However, in addition, the magnetic tape T is normally run, It is also possible to operate the dump request key. In this case, the tape traveling control unit 15 supplies the initial signal to the modulation circuit 31 via the second changeover switch 19 until the dump request key is operated, and the dump request key is operated. At the stage, the second changeover switch 19 is changed over, and the dump data from the microcomputer 18 is changed to the second changeover switch 1
It suffices to supply it to the modulation circuit 31 via 9.

As described above, according to the recording / reproducing apparatus in the first embodiment, the control head 11 and the demodulation circuit 3 are provided.
A code is read from the control track 2 of the magnetic tape T through the 2 and the read code is read by the microcomputer 1
8 is stored in the RAM 26, and the microcomputer 18 and the tape running control unit 15 are controlled according to the stored code. It is not necessary to register the reception channel information regarding the area in the ROM 27, and the load on the ROM 27 can be reduced.

Further, in the recent complicated VTR setting, malfunction due to the setting error cannot be avoided. Each time, VTR
To take the set of to the factory or service center,
It is a heavy burden on both the user and the service side. However, according to the first embodiment, the data (for example, the data set by the user) registered in the ROM 27 or the RAM 26 of the microcomputer 18 is transferred to the control track of the magnetic tape T via the modulation circuit 31 and the control head 11. Since it is written in No. 2, for example, a malfunction caused by a setting mistake by the user can be set by simply reproducing the magnetic tape T and analyzing the contents without carrying the VTR set into a factory or a service center. It is possible to easily confirm the data and determine the setting error.

Further, in the first embodiment, the time setting program and the reference data relating to the receiving channel, which are pre-recorded on the control track 2 of the magnetic tape T, are read out via the control head 11 and the demodulation circuit 32 and desired. However, in addition to this, the time setting program and reference data relating to the receiving channel, which are previously recorded as image data (for example, luminance signal) on the helical track 3 of the magnetic tape T, are read out,
You may make it perform desired control. In this case, as shown in FIG. 8, the reproducing head 1 of the rotary head is used as reproducing means.
3, the A / D converter 41 and the decoder 42 which are demodulation means may be connected to the subsequent stage of the reproducing head 13. That is, for example, the luminance signal from the reproducing head 13 is converted into digital data by the A / D converter 41,
Further, this digital data can be easily realized by converting the digital data into series logical data by the decoder 42 and supplying the logical data to the microcomputer 18.

In the first embodiment, the RAM 26
The setting data and system check data stored in the magnetic tape T are recorded on the control track 2 of the magnetic tape T via the modulation circuit 31 and the control head 11. Alternatively, the data may be recorded on the helical track 3. In this case, as shown in FIG. 8, the encoder 43 and the D / A converter 44 may be used as the modulation means, and the recording head 45 of the rotary head may be used as the recording means. That is, the encoder 43 encodes the logical data output from the microcomputer 18 to the series, and the D / A converter 44 converts the encoded data into an analog image signal (for example, a luminance signal), thereby simplifying the operation. Can be realized. The various data converted into the image signals are passed through the recording head 45 to the magnetic tape T.
Will be recorded on the helical track 3.

As described above, since the VTR is a very complicated machine, its failure is also wide-ranging. In the second more specific example, self-diagnosis of the VTR which is a complicated machine is shown in FIG. Description will be given with reference to a schematic configuration.
Here, common parts are given the same reference numerals, and description thereof is omitted. In the second embodiment, the VTR cassette 30 described above is used as a recording medium. The VTR in FIG. 9 is V
The data recorded on the magnetic tape T in the TR cassette 30 is taken out as a reproduction signal via the reproduction head 13. The extracted reproduction signal is supplied to the reproduction unit 34. On the magnetic tape T in the VTR cassette 30, standard data, which is the recorded reference data, is recorded in advance as a code.

The VTR has the reproducing section 34, the memory 35,
The demodulation circuit 32, the D / A converter 44, the control unit 29, the comparison unit 36, the A / D converter 41, the modulation circuit 31, the recording unit 37, and the recording head 45.

The reproducing section 34 in the VTR is composed of a reproducing amplifier 34a, a PLL circuit 34b, a data separation circuit 34c and an error correction circuit (ECC) 34d. The reproduction unit 34 performs reproduction signal processing to separate the video data and the reference data supplied as self-diagnosis data for error checking, and then supplies the separated data to the memory 35. The memory 35 supplies the video data and the reference data to the demodulation circuit 32. The memory 35 also supplies the reference data to one end of the comparison unit 36.

The demodulation circuit 32 of FIG. 9 supplies the demodulated video data to the D / A converter 44 and also supplies the video data to the recording side modulation section 31 via the nodes n ₁ and n _2. ing. The modulation circuit 31 modulates the video data and the reference data and supplies the modulated data to the recording unit 37.
Data is also supplied to the other end of the comparison unit 36. The comparison unit 36 receives the control of the control unit 29 and receives the demodulation circuit 32.
Also, only the reference data from the modulator circuit 31 is selectively fetched and compared with the reference data supplied from the memory 35. Although not shown, the comparison unit 36 can easily self-diagnose the presence or absence of a defect by displaying a display corresponding to the result of the comparison.

In addition to this, when a problem occurs in the reproducing section 34, the VTR can be judged by the result of the error correction circuit 34d.

In this self-diagnosis method, as described above, the signal is passed through each part of the product except the operation of the recording unit 37 of the VTR, the A / D converter 41 and the D / A converter 44, and there is one defect. If this is the case, the defective product is used. Therefore, this method is effective for the shipment determination, for example, when confirming whether or not the product is manufactured correctly.

The D / A converter 44 converts the supplied video data into an analog signal and outputs a video output signal from the output terminal 50. In addition, the video input signal supplied through the input terminal 51 is recorded through the signal processing of the A / D converter 41, the modulation circuit 31, the recording amplifier 37a of the recording unit 37, the synchronization and block ID adding circuit 37b, and the ECC 37c. Recording is performed on the magnetic tape T via the head 45.

Next, a third embodiment, which is a modification of the second embodiment described above, will be described with reference to FIG. Here, common parts are given the same reference numerals, and description thereof is omitted. FIG. 10 of the third embodiment shows a schematic block circuit configuration for identifying a broken portion and a broken portion. In the case of the second embodiment described above, it is not possible to completely grasp whether or not the data reproducing system constituted by the reproducing head 13 and the reproducing section 34 is correct. Also, if the data reproduction system fails and does not operate at all,
The operation of other blocks cannot be checked either. For this reason, even if the VTR has a failure part, the service person cannot specify the failure part of the VTR.

Even in such a case, in order to identify the failure point, a method of not passing through the data reproducing system must be adopted in the VTR self-diagnosis. As one method of this, a method of adding a memory to a recording medium which is a data supply means is adopted. A specific method is, for example, a method in which the memory 30M is attached to the VTR cassette 30 of FIG. 10 and the reference data is supplied from this memory 30M. In the memory 30M,
The reference data is stored in advance.

The VTR inserts the VTR cassette 30 to which the memory is attached into the VTR. At this time, the terminal of the memory 30M of the VTR cassette 30 is brought into contact with the data reading contact 38. The memory 30M stores the reference data as described above. Although not shown, the VTR reads the reference data stored in the memory 30M under the control of the control unit 29. The memory 30M supplies the reference data to the serial I / O circuit 39 via the data reading contact 38. The serial I / O circuit 39 converts the reference data read from the memory 30M into serial data and outputs the serial data to the memory 35. The memory 35 loads the supplied reference data.

Below, the comparison unit 36 compares the reference data, which has undergone the signal processing of each unit, via the nodes n ₁ and n ₂ similar to those in the second embodiment, and the reference data supplied from the memory 35.
If the data are compared with each other and the data match, it is determined that the device is operating normally, and if a mismatch is detected, it is determined that there is a faulty part in this route. In practice, the reference data is reproduced from the magnetic tape T of the VTR cassette 30 after confirming that the demodulation circuit 32 and the modulation circuit 31 are operating correctly by the above-described configuration. The VTR compares the reproduced reproduction unit 34, the demodulation circuit 32, and the modulation circuit 31 with the reference data from the memory 35 that stores the data supplied from the memory 30M, and when all the data match, the VTR reproduces the data. The system is correct.

Further, a method for performing a detailed operation check of each part will be briefly described. In order to specify the failure location in detail, the VTR is provided with a bypass for the reference data to bypass each block for each block. VTR
The comparison unit 36 compares the bypass provided for each block with the case of passing through a normal block, and compares the data matches.

In another method, each board, circuit block, or IC has an interface with the control unit 29, which is a constituent element of the system controller, and is individually controlled by the control unit 29, such as a boundary scan. There is a method of exchanging data obtained by scanning and comparing them individually. These methods may be combined, and when the operator needs to confirm the operation of the data reproducing system as described above after checking individually in this way, the information is recorded on the magnetic tape T of the VTR cassette 30. The reference data is reproduced using the data reproduction system to confirm the operation.

By the way, the data read contact 3 for reading data from the memory 30M provided in the VTR cassette 30.
8 may be broken. In this case, it is effective to use a method of connecting a cable from an external device to the terminal of the serial I / O circuit 39 of the VTR and supplying reference data for self-diagnosis.

Reproduction of the reference data by using the reproducing means which is not broken in this way, that is, the above-mentioned VTR cassette 3
By supplying the self-diagnosis data supplied from 0 or the memory 30M, it is possible to easily change the data and the diagnosis method without providing an external device for supplying data connected to the serial I / O circuit 39. Can be In addition, since it is possible to record the error check data relating to the system check by the microcomputer 18 in this manner, it is possible to easily determine not only the malfunction due to the above setting error but also the VTR state and failure.

Next, fourth to sixth embodiments for supplying various data to the apparatus main body through the VTR cassette as a recording medium and changing the data contents according to the application will be briefly described. Here, common parts are given the same reference numerals, and description thereof is omitted. These block configurations are performed by the block configurations shown in FIG. 2, FIG. 9, or FIG.

The fourth embodiment relates to changing scramble key data. The VTR cassette 30
On the magnetic tape T therein, the above-mentioned code is recorded because the scrambling key code supplied to the memory 35 under the control of the control unit 29 is used as reference data during recording and reproduction.

The magnetic tape T in this VTR cassette 30
The scramble key code at the time of recording and reproducing is reproduced as the reference data recorded in the data reproducing system via the data reproducing system or a route not passing through the data reproducing system. Then, the reproduced key code is supplied to the memory 35. The VTR, under the control of the control unit 29, descrambles the reproduced signal to reproduce the signal.

With such a configuration, the scramble key code recorded on the magnetic tape T or stored in the memory 35M is supplied only to the paying user based on, for example, the billing system, or the key code is changed periodically. It is possible to adopt a method such as

The fifth embodiment is the VTR cassette 30 described above.
This is an example used when changing the quantization table as the reference data recorded in. The VTR cassette 30
Since the code of the quantization table supplied as reference data to the memory 35 by the control unit 29 is used for the magnetic tape T therein, the above code is recorded in advance. The stored quantized code is reproduced through a data reproducing system or a data supplying path that is supplied from a memory and does not pass through the data reproducing system. The reproduced code is supplied to the memory 35. The memory 35 includes a control unit 29.
The value of the quantization table is changed under the control of.

With this configuration, when the VTR operation is compressed or expanded according to the quantization table, for example, the data can be easily changed.

The sixth embodiment is the VTR cassette 30 described above.
Is an example of supplying data for special effect processing by using. There are infinite variations in the special effect processing pattern. In order to process special effects, it is desirable to develop new patterns and update the patterns to suit the user's tastes. The data of a plurality of patterns becomes a large amount of data. To supply the plurality of patterns, the manufacturer records the data of these patterns on the magnetic tape T of the VTR cassette 30 and supplies the data to the user. At this time, not only the wipe pattern used for a scene change, for example, is recorded as reference data on the magnetic tape, but also a control program for performing these special effect processes is recorded. Thus, at least one of the control program and the reference data is reproduced by the data reproducing system as a code for performing the special effect process. The reproduced code is supplied to the memory 35. The memory 35 controls the input / output of the supplied code by the control unit 29.

Further, as a concrete example, when a digital VTR is used, the digital VTR stores a large amount of data relating to a special effect pattern as a memory means in advance, for example, in a built-in hard disk or the like,
With the configuration having the reproducing section and the recording section respectively, it becomes possible to easily edit the program material including the special effect processing with one VTR.

When performing data compression / expansion as described above, for example, the VTR may record a data compression program for changing the output form of data according to various connected devices on the magnetic tape T. . This is compatible with recent multimedia. That is, VT
The devices connected to the R include, for example, a magneto-optical disk recording / reproducing device, a monitor (image receiver), a data communication device, a computer, etc., but these devices have different data transmission / reception formats.

The VTR is a magnetic tape T as shown in FIG.
The data compression program is read from the RAM, and the data compression program corresponding to the connected device is left in the RAM 26 based on the device number input from the input means, and the other data compression programs are occupied in the memory. By releasing it, there is no need to register the data compression program corresponding to all devices in the ROM 27, and R
The load on the OM 27 can be reduced.

Next, the seventh embodiment to the first embodiment in which a new function is added by changing the program or circuit inside the VTR
Embodiment No. 0 will be described with reference to a schematic block diagram of FIG. 11 and a concrete block diagram of FIG. Here, common parts are given the same reference numerals, and description thereof is omitted. FIG. 11 shows a case where the above-mentioned change data is supplied via the VTR cassette 30. Therefore, FIG. 11 shows only the case where the data supply from the data reproducing system to each unit is performed under the control of the control unit 29. The VTR supplies a reproduction signal including change data from the magnetic tape T of the VTR cassette 30 to the reproduction section 34 via the reproduction head 13. The reproducing unit 34 separates, for example, the signals of the changed data portion and the portion not including the changed data and outputs them. The reproduction signal of the latter part that does not include the change data is supplied to the signal processing unit 40.

The reproduction signal of the former changed data portion is also supplied to the signal processing unit 40 and the memory 35. The memory 35 controls input / output of the supplied change data according to the control of the control unit 29. The stored change data is controlled by the control unit 29 to control the programmable logic device (hereinafter simply referred to as PLD) in the signal processing unit 40.
40A, and a digital signal processor (hereinafter simply referred to as DSP) 40B.

The memory 35 also supplies the change data, which is digital data, to the D / A converter 44. D
The / A converter 44 converts the changed data into an analog signal and supplies the analog signal to the electronic volume 40C in the signal processing unit 40. The signal processing unit 40 changes the setting of each unit based on the change data. A VT having a new function that enables the operation of each unit according to the changed data
It is R. The signal processing unit 40 has output terminals 50 and 51.
To output a video output signal and an audio output signal based on the new function.

A seventh embodiment for changing the operation of the control unit 29, that is, the central processing unit by using this circuit configuration will be described. In the seventh embodiment, at least one of the control program and the reference data recorded in advance on the magnetic tape T of the VTR cassette 30 is reproduced as a code by the reproducing section 34 via the reproducing head 13. The reproduced code is loaded and supplied to the memory 35.

Here, as the memory 35, for example, an E ² type ROM that enables electronic rewriting or a static RAM that supplies battery power even when a power failure occurs to prevent data erasure is used. By loading new data into the memory 35, the control unit 29 becomes the central processing unit of FIG.
Has a basic function and a new function.

With this configuration, when the version is upgraded, the control program corresponding to the bug FIX is supplied, the header file is added, and the interface is changed for a specific user. Can be done.

In the eighth embodiment, the PLD shown in FIG. 11 is used.
A case where the circuit of the unit 40A is changed will be described. VT
At least one of a control program, circuit data, and reference data prerecorded on the magnetic tape T of the VTR cassette 30 is reproduced as a code by the reproducing unit 34 via the reproducing head 13 as a code. The reproduced code is loaded and supplied to the memory 35. PLD unit 40
A changes the internal logic according to, for example, the circuit data supplied from the memory 35. This PLD unit 4
0A functions as control means for performing control according to the code.

By this change, as in the case of the central processing unit, at the time of version upgrade, the function of the VTR by supplying the circuit data corresponding to the bug FIX can be improved. Further, the supplied circuit data is output as a signal limited by various standards such as the horizontal synchronizing signal HD and the vertical synchronizing signal VD of the standard television system NTSC system / PAL system. As a result, one VTR can be easily used as another VTR without adding a circuit configuration.

If the above setting is further developed, VT
R can function as a data recorder as described later (see FIG. 12). In addition to this, the VTR can be used as a plurality of devices by increasing the data compression rate, strengthening error correction of the compressed data, and changing the parallel interface specifications to connect to a telephone line. Can be operated.

In the ninth embodiment, the DSP shown in FIG. 11 is used.
A case where the setting of the unit 40B is changed will be described. A control program or reference data is recorded as a code on the magnetic tape T of the VTR cassette 30. The VTR is the magnetic tape T of the VTR cassette 30.
At least one of the control program and the reference data recorded in (1) is reproduced as a code by the reproducing unit 34 via the reproducing head 13. The reproduced code is loaded and supplied to the memory 35. The DSP unit 40B changes the internal signal processing according to, for example, coefficient data supplied from the memory 35. Here, this DSP unit 40
B is used as control means for performing control according to the code.

By this change, the VTR, for example, changes the coefficient of the digital filter, specifically, the sampling rate conversion (Sampling Rate Converter) in order to perform conversion in accordance with the sampling rate of the NTSC / PAL system in the digital television as described above. The coefficient change and audio reverb corresponding to are performed. Also in this embodiment, the changing process according to a desired system or the like can be easily performed, and one device can function as a plurality of devices.

Next, as a tenth embodiment, a case where the setting of the electronic volume 40C shown in FIG. 11 is changed will be described. On the magnetic tape T in the VTR cassette 30,
A control program for controlling the electronic volume 40C or reference data is recorded in advance together with a video signal and an audio signal which are information data. actually,
The data used for the electronic volume (VCA) is reproduced by a data reproducing system including a reproducing head 13 and a reproducing section 34 in which at least one of the control program and the reference data recorded on the magnetic tape T of the VTR cassette 30 is used as a code. It The VTR uses the above code to perform a data rewriting process for performing a process according to each characteristic of the magnetic tape T under the control of the control unit 29. As the constant value used for the output of the electronic volume, an audio signal is output according to the analog signal. Therefore, as described above, the digital data stored in the memory 35 is D
It is supplied to the / A converter 44 and converted into a voltage which is an analog signal.

By the way, it is known that the magnetic tape T has slightly different tape characteristics depending on the manufacturer and the type. Further, in the future, the characteristics of the magnetic tape T will change as the quality of the magnetic tape T improves. In such a case, if the VTR is readjusted to an optimum value according to the magnetic tape T, or the constant of the RF system for controlling the equalizer used in the VTR and the recording current is changed, the function of the VTR becomes The VTR performance, error rate, etc. are improved by readjusting the optimum value according to the above.

A specific case of changing the recording current will be briefly described below. First, the program is loaded from the magnetic tape T of the VTR cassette 30 into the memory in the system controller of the VTR. Then, as in the above, VT
The reference data is loaded from the magnetic tape T of the R cassette 30 into the memory.

The VTR records the reference data loaded in the memory in the empty area of the magnetic tape T while changing the parameters such as the recording current of the RF system of the apparatus. After this,
The recorded data is reproduced and the reproduction output is measured by a measuring circuit (not shown). The parameter when the optimum value is output in this way is set in the electronic volume. By this operation, not only the setting of the electronic volume but also the recording current can be changed. If the above-mentioned operations are written in the program, the optimum setting of these parameters can be automatically performed.

Finally, a configuration in which a VTR, which is a recording / reproducing device, is used as a data recorder by using a PLD will be described with reference to FIG. FIG. 12 shows a more specific configuration of the block diagram of FIG. Common parts are given the same reference numbers. VTR shown in FIG.
On the reproduction side of, the reproduction unit 34 includes reproduction amplifiers 34a, P
It is composed of an LL circuit 34b, a data separation circuit 34c, and an error correction circuit 34d. The PLD unit 47P is PL
It is composed of a D circuit 47a and a memory 47b.

Similarly, on the recording side of the VTR shown in FIG. 12, the recording section 37 comprises a recording amplifier 37a, a synchronization and block ID adding circuit 37b and an error correction circuit 37c, and a PLD section 47R comprises a PLD circuit 47c and a memory. 47
It is composed of d. This VTR is provided with D / A converters 44a and 44b on the reproducing side and the recording side, and is configured as a system controller 18 by a control unit 29 and a memory 35. As described above, the PLD units 47P and 47R are configured by the PLD and the memory, so that the VTR constitutes the PLD unit as a signal processing unit constructed according to the data from the VTR cassette 30P.

In the VTR shown in FIG. 12, the digital control signal supplied from the memory 35 of the system controller 18 is converted into an analog control signal by the D / A converter 44a, and the VCA 46a is controlled by this analog control signal to output the analog signal from the output terminal 52. An output signal is output, and on the other hand, the signal-processed data in the PLD unit 47P is output as a digital output signal via the output terminal 53.

On the recording side of the VTR, the input terminal 5
A digital input signal and an analog input signal are supplied to the VTR via 4 and 55, respectively. PLD section 47R
Converts the input signal into data corresponding to the format supplied through the memory 35 in advance and supplies it to the recording unit 37. On the other hand, in the VTR, the digital control signal supplied from the memory 35 is converted into an analog control signal by the D / A converter 44b, and the VCA 46a is controlled by this analog control signal. This VCA46b is
The PLD unit 4 performs control according to this analog control signal.
The analog input signal is supplied to the recording unit 37 via 7R. The recording unit 37 records the recording signal REC on the recording VTR cassette 30R via the recording head 45.

More specifically, the VTR can function as a data recorder with the supplied data. In this embodiment, the VTR cassette 30P uses a medical hybrid tape. Format data and the like relating to specification changes are recorded in advance on this tape. By using this tape and changing the specifications based on the supplied data, the PLD units 47P and 47R can be changed.
Supports non-standard signals for special users.

Here, in the case of a data recorder for medical use, the non-standard signal for special users is, for example, a signal out of the general standard setting in which the synchronization used is ODD / EVEN inversion.

To correct this sync signal, the VTR
The configuration of the sync separation circuit and the sync generation circuit provided in the PLD unit is changed based on the supplied circuit data. After making such changes, the VTR will show the alternate long and short dash line AA shown in FIG.
The configuration on the input / output terminal side can be regarded as the programmable I / O block, and the opposite side can be regarded as the core block of the data recorder.

By thus making the configuration and modification, it becomes possible to easily deal with each user by converting the VBID substrate into a PLD. Further, the VTR can easily change the specifications of the VTR format used as the data recorder by supplying the data relating to the data recorder format from the VTR cassette 30P.

With the above-mentioned configuration, it is possible to read, for example, an initialization program or reference data recorded in advance through a recording medium and perform control relating to the initialization or control of new functions. It is not necessary to register the setting program, reference data, etc. in the ROM of the microcomputer in advance, and the burden on the memory can be reduced.

Information relating to the system check by the microcomputer and a part of the data referred to by the control program can be recorded on a recording medium. For example, at the time of maintenance of the recording / reproducing apparatus, the data recorded on this recording medium can be confirmed. By doing so, it is possible to improve the service to the user and simplify the maintenance.

Further, by having the above-mentioned structure and having new characteristics by the data supplied by exchanging the tape, this single device can be used as a device for a plurality of purposes, and a great investment effect for the user can be obtained. Can bring

Furthermore, it becomes possible for the manufacturing side to deal with users who require special specifications and small-quantity multi-product production, which facilitates version upgrades and bug corrections, and reduces the burden of service.

In each of the above-mentioned embodiments, the recording / reproducing apparatus according to the present invention is applied to a VHS compatible VTR, but it can also be applied to an 8 mm video compatible VTR. In addition to these VTRs, DA
T, audio cassette deck, magneto-optical disk recording / reproducing device, optical disk device, etc., which are not originally intended to record / reproduce the setting data and system check data stored in the memory of the microcomputer, and have the microcomputer incorporated therein. You can apply all kinds of equipment. Also in this case, it can be realized by recording the code relating to the initial setting, the setting data and the system check data in the video data recording area or the audio data recording area of the medium.

[0135]

As described above, according to the recording / reproducing apparatus of the present invention, a recording medium in which information data is recorded and at least one of a control program, circuit data, and reference data is recorded as a code, By having reproducing means for reading the code from the recording medium, storage means for storing the code read by the reproducing means, and control means for performing control according to the code stored in the storage means, For example, the pre-recorded initial setting program or reference data is read through the recording medium, and the initial setting program, circuit data, or reference data supplied from the recording medium is set in each unit in the apparatus according to the initial setting or the like. The above initial setting program,
It is not necessary to register circuit data, reference data, etc. in the ROM of the microcomputer in advance, and the burden on the memory can be reduced.

Further, according to the present invention, in a recording / reproducing apparatus having a control means for controlling the main body of the recording / reproducing apparatus on the basis of the control data registered in the memory, the control data registered in the memory is recorded on the recording medium. By providing the recording means for writing to the recording medium, it is possible to record the information about the system check by the microcomputer and a part of the data referred to by the control program on the recording medium. By confirming the performed data and making it possible, it is possible to improve the service to the user and simplify the maintenance.

Further, by having the above-mentioned structure and having new characteristics by the data supplied by exchanging the tape, this one device can be specified as a device for a plurality of purposes, and a great investment effect for the user can be obtained. Can bring

Furthermore, it becomes possible for the manufacturing side to deal with users who require special specifications and small-quantity multi-product production, and it is possible to facilitate version upgrades and bug corrections, and reduce the burden of service.

[Brief description of drawings]

FIG. 1 shows a magnetic tape recording / reproducing apparatus according to the present invention as a VHS.
An example applied to a corresponding VTR (hereinafter, V according to the example
It is an explanatory view showing an example of a recording format of a magnetic tape used for TR).

FIG. 2 is a block diagram showing a circuit configuration of a VTR according to this embodiment.

FIG. 3 is a timing chart showing signal processing (processing for converting into a command signal corresponding to a code) of the VTR according to the present embodiment.

FIG. 4 is a conceptual diagram showing a state in which a guide image regarding initialization is recorded on a helical track of a magnetic tape used in a VTR according to the present embodiment, and a code regarding each initialization is recorded on a control track.

FIG. 5 is a flowchart showing an initial setting operation of the VTR according to the present embodiment.

FIG. 6 is a conceptual diagram showing a state of recording setting data and the like in a memory on a control track of a magnetic tape used in the VTR according to the present embodiment.

FIG. 7 is a flowchart showing a data dump operation of the VTR according to the present embodiment.

FIG. 8 is a block diagram of a main part showing another example of the VTR according to the present embodiment.

FIG. 9 shows a schematic block diagram enabling self-diagnosis of a VTR in a second embodiment according to the present invention.

FIG. 10 is a block diagram showing a circuit configuration for identifying a failure location of a circuit in a third embodiment according to the present invention.

FIG. 11 is a schematic block diagram for adding a new function by performing program change and circuit change inside the VTR according to the present invention by supplying various data.

12 is a block diagram showing, as a more specific circuit configuration than the block diagram shown in FIG. 11, a configuration capable of having a special data recorder function, for example.

[Explanation of symbols]

 1 ... Audio track 2 ... Control track 3 ... Helical track 11 ... Control head 12 ... Playback amplifier 13 ... Playback head 14 ... Synchronous separation circuit 15 ... Tape running control unit 16 ... Recording amplifier 17 ... First changeover switch 18 ... Microcomputer 19 ... Second changeover switch 20 ... Oscillator 21 ... Third changeover switch 22 ... Image processing circuit 23 ... Input means 24 ... Display means 25 ... I / O port 26 ... RAM 27 ... ROM 28 ... Arithmetic section 29 ... Control section 30, 30P, 30R ... VTR cassette 31 ... Modulation circuit 32 ... Demodulation circuit 33 ... Clock generation circuit 34 ... Reproduction unit 35 ... Memory 36 ... Comparison unit 37 ... Recording unit 38 ... Data read contact 39 ... Serial I / O circuit 40 ... Signal processing unit 40A ... PLD 40B ... DSP 40C ... Electronic volume (VCA) 41 ... A / D converter 42 ... Decoder 43 ... Encoder 44, 44a, 44b ... D / A converter 45 ... Recording head 50, 52, 53 ... Output terminal 51, 54, 55 ... Input terminal

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁵ Identification code Internal reference number FI Technical display location G11B 15/00 S 20/00 Z 9294-5D 20/10 301 Z 7736-5D 27/02 8224- 5D // G11B 15/087 101 A 8022-5D

Claims (18)

[Claims] 1. A recording medium in which information data is recorded and at least one of a control program, circuit data, and reference data is recorded as a code, a reproducing means for reading the code from the recording medium, and the reproducing means. A recording / reproducing apparatus comprising: storage means for storing the read code; and control means for performing control according to the code stored in the storage means. 2. The recording / reproducing apparatus according to claim 1, wherein the information data is video data and / or audio data. 3. The recording / reproducing apparatus according to claim 1, wherein the code is recorded in a control area of a recording medium. 4. The recording / reproducing apparatus according to claim 1, wherein the code is recorded in a video data recording area and / or an audio data recording area of a recording medium. 5. The recording medium is a magnetic tape, and the code is recorded on a control track of the magnetic tape as a control signal having a duty corresponding to each logical value. The recording / reproducing apparatus described. 6. The recording / reproducing according to claim 1, wherein a central processing unit is used as the control means, and a control program of the central processing unit or reference data is recorded on the recording medium as the code. apparatus. 7. A programmable logic device is used as the control means, and at least one of a control program, circuit data, and reference data supplied to the programmable logic device is recorded as the code in the recording medium. The recording / reproducing apparatus according to claim 1. 8. A digital signal processor is used as the control means, and a control program for the digital signal processor,
Alternatively, the recording / reproducing apparatus according to claim 1, wherein reference data is recorded as the code on the recording medium. 9. The control means is used in an electronic volume, and the code is recorded in the recording medium as data used for a control program or reference data for controlling the electronic volume in the electronic volume. The recording / reproducing apparatus described. 10. The reference data recorded on the recording medium is reproduced as a code together with the information data by the reproducing means, and a comparing means is provided for comparing the reproduced code with the code passed through the diagnosis part. 2. The recording / reproducing apparatus according to claim 1, wherein the comparison means is controlled by the control means to self-diagnose the operation of each part in the apparatus. 11. The recording / reproducing apparatus according to claim 1, wherein a scramble key code supplied to the storage means under the control of the control means during recording / reproduction is recorded on the recording medium as the code. 12. The recording / reproducing apparatus according to claim 1, wherein a quantization table supplied as reference data to the storage means by the control means is recorded as the code on the recording medium. 13. The recording / reproducing according to claim 1, wherein a control program for special effect processing or reference data supplied to the storage means by the control means is recorded as the code on the recording medium. apparatus. 14. A control program, circuit data for performing user setup in the storage means by the control means,
Alternatively, the recording / reproducing apparatus according to claim 1, wherein reference data is recorded as the code on the recording medium. 15. A recording / reproducing apparatus having a control means for controlling the main body of the recording / reproducing apparatus based on control data registered in the memory, wherein the recording means writes the control data registered in the memory onto a recording medium. A recording / reproducing apparatus having: 16. The recording / reproducing apparatus according to claim 15, wherein the control data is recorded in a control area of the recording medium. 17. The recording / reproducing apparatus according to claim 15, wherein the control data is recorded in a video data recording area and / or an audio data recording area of the recording medium. 18. The recording medium is a magnetic tape, and the control data is recorded on a control track of the magnetic tape as a control signal having a duty corresponding to each logical value. The recording / reproducing apparatus described.