JPH06223435A - Recording and reproducing device - Google Patents

Abstract

PURPOSE:To surely execute the self-diagnosis in respective parts with simple operation and to improve user's operation convinience by using the self-diagnosis in a reproduction processing system and/or a recordable recording medium and executing the self-diagnosis in a record processing system. CONSTITUTION:A recording and reproducing device 1 recording and reproducing information signals DIN, DOUT on the prescribed recording medium 7 is provided with a self-diagnostic state in addition to a normal operation state (off). Then, the first self-diagnosis (mode 1) using no recording medium 7, the second self- diagnosis (mode 2) using the recording medium 7 recorded with a reference signal and/or the third self-diagnosis (mode 3) using the recordable recording medium 7 are executed. Further, the diagonoses in mechanical systems and servo systems 14-22 are executed by the first self-diagnosis (mode 1), and the diagnoses in the reproduction processing systems 2, 3, 5, 7, are executed by the second self-diagnosis (mode 2), and the diagnoses of the record processing systems 2, 3, 4, 5 are executed by the third self-diagnosis (mode 3).

Description

Detailed Description of the Invention

[0001]

[Table of Contents] The present invention will be described in the following order. Field of Industrial Application Conventional Technology Problems to be Solved by the Invention Means for Solving the Problems (FIGS. 1 and 2) Actions (FIGS. 1 and 2) Embodiments (FIGS. 1 to 4) Effects of the Invention

[0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a recording / reproducing apparatus and can be applied to, for example, a data recorder for recording and reproducing information data on a magnetic tape.

[0003]

2. Description of the Related Art Conventionally, as a recording / reproducing apparatus for recording information data at high density, ANSI ID-1 format (Th
ird draft PROPOSED AMERICAN NATIONAL STANDARD 19mm
TYPEID-1 INSTRUMENTATION DIGITAL CASSETTE FORMAT
There is a data recorder that complies with X3B6 / 88-12 Project 592-D 1988-03-22).

In such a data recorder, information data is subjected to error correction coding in a product code format using a Reed-Solomon code, recorded on a magnetic tape, and reproduced. By detecting a transmission error and correcting it, information data can be recorded and reproduced with high density and high accuracy.

[0005]

By the way, in the data recorder having such a configuration, self-diagnosis is performed mainly by searching for an error during normal operation. Therefore, for example, the diagnosis of a function that is used only about once a year is not performed until the function is actually used. Therefore, there is a problem such as a failure when using the function, and there is a problem that the failure cannot be positively detected.

Further, since the self-diagnosis mainly consists of searching for an error during normal operation, no distinction is made between the normal operation mode and the self-diagnosis mode. I didn't need to check if it met, but it was still insufficient for the user to use.

The present invention has been made in consideration of the above points, and an object thereof is to propose a recording / reproducing apparatus which can solve the conventional problems all at once and can surely execute self-diagnosis of each part by a simple operation. Is.

[0008]

In order to solve such a problem, according to the present invention, in a recording / reproducing apparatus 1 which records and reproduces information signals D _IN and D _OUT on a predetermined recording medium 7, a normal operation state (off) is set. Separately, a first self-diagnosis (mode-1) that has a self-diagnosis state and does not use the recording medium 7, a second self-diagnosis (mode-2) that uses the recording medium 7 on which a reference signal is recorded, and / or The third self-diagnosis (mode-3) using the recordable recording medium 7 is executed.

In the present invention, the first self-diagnosis (mo
de-1) diagnoses the mechanical system and / or servo system 14-22, and the second self-diagnosis (mode-2) reproduces the system 2,
3, 5, and 7 are diagnosed, and in the third self-diagnosis (mode-3), the recording processing systems 2, 3, 4, and 5 are diagnosed.

Further, in the present invention, when the recording medium 7 is loaded at the time of executing the first self-diagnosis (mode-1), the recording medium 7 is ejected and the first self-diagnosis (mode-1) is performed.
2nd and / or 3rd self-diagnosis (mode-2),
Inspecting the recording medium 7 mounted when executing (mode-3),
When the recording medium 7 is inappropriate, the second and / or third self-diagnosis (mode-2) and (mode-3) are interrupted.

[0011]

In a self-diagnosis state different from the normal operation state (off), the mechanical system and / or servo system 14 to 2 are used without using the recording medium 7.
2. Self-diagnosis, recording processing system 2, 3, 5, 7 using the recording medium 7 on which the reference signal is recorded and / or recording processing system 2, 3 using the recordable recording medium 7. 4,5
By performing the self-diagnosis of (1), the self-diagnosis of each unit can be surely executed by a simple operation.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail below with reference to the drawings.

In FIG. 1, reference numeral 1 generally indicates a data recorder according to the present invention, which is a block based on the function of performing self-diagnosis on an actual board configuration. During recording, input data D _IN is input / output interface (PI
F) 2 is taken into the digital signal processor PR3. The digital signal processor (PR) 3 is composed of four signal processing boards so that the processing speed can be improved by executing four parallel processings.

In this digital signal processor (PR) 3, an error correction code is added to the input data D _IN, and then it is modulated and R is supplied through a recording circuit (RF-REC) 4.
After being F equalized, it is supplied to the rotating head 5,
As a result, desired input data is recorded on the magnetic tape 6.

At the time of reproduction, the reproduction signal of the magnetic tape 6 obtained from the rotary head 5 is subjected to error correction processing by the digital signal processor (PR) 3 through the reproduction circuit (RF-PB) 7 and then input / output interface. (PIF) 2
And is output as reproduction data D _OUT .

The input signal A _IN to the control track and time code track is the audio signal processing system (A
E) 8 is supplied to and recorded in the CTL head 9 and TC head 10 and the information of the control track and time code track of the magnetic tape 7 is recorded in the CTL head 9 and the T head.
The audio signal processing system (A
E) It is sent as an output signal A _OUT through 8.

The data recorder 1 is controlled by an SSP board 11 on which a plurality of CPUs having various functions are mounted and which controls all of them. In the case of this embodiment, various remote control signals from the outside including a self-diagnosis start command and an inquiry about the result are input to the SSP board 11 via the interface board (IF) 12. The control panel (CP) 13 includes a keyboard and a display device for performing various operations.

The mechanical sensor (SENSOR) 14 represents all the sensors attached to the traveling system and the cassette compartment. Most of these sensors (SENSOR) 14 are optical sensors in which a light emitting diode and a phototransistor are paired. A detection signal from the sensor (SENSOR) 14 is input to the SSP board 11 and processed, and a motor drive board (MD) 15 allows a capstan (CAPSTAN) 16, a drum (DRUM) 17,
Supply reel (S-REEL) 18, take-up reel (TR)
EEL) 19, tape loading (THREAD) 2
0, reel shift (R-SHIFT) 21, longitudinal head shield plate (SHIELD) 22, motors and plungers are driven.

On the SSP substrate 11, as shown in FIG.
A main CPU 30, a drive unit control CPU 31, a signal processing control CPU 32, and an input / output control CPU 33 are arranged inside. Of these, the self-diagnosis control device 34 in the main CPU 30 executes the self-diagnosis sequence. The main CPU 30 includes a clock 35 for measuring the power-on time for executing self-diagnosis, a storage device 37 backed up by a back-up power supply 36 for storing the result of self-diagnosis, and a hardware for itself upon completion of the diagnosis. A reset line control circuit 38 for applying reset and a power-on reset circuit 39 are connected.

Here, in this data recorder 1,
As shown in FIG. 3, the operation mode includes a normal operation mode (off) and a self-diagnosis mode. In addition, the self-diagnosis mode is a mode input waiting state (ready) that sets which function is to be diagnosed, a running state (running) in which self-diagnosis is in progress, and a normal end state indicating that self-diagnosis has completed normally. (Done), an abnormal end state (abort) indicating that the self-diagnosis has abnormally ended, and a tape waiting state (wait) indicating that the tape cassette is in and out.

Further, in the case of this data recorder 1, it depends on whether or not a magnetic tape is used as a condition for self-diagnosis.
It has one self-diagnosis mode. For example, self-diagnosis (mode-1) that diagnoses the drive unit without using magnetic tape, self-diagnosis (mode-2) that diagnoses the playback processing system using the reference tape as the magnetic tape, and recordable There is a self-diagnosis (mode-3) that diagnoses the recording processing system using magnetic tape.

In the case of this embodiment, the normal operation mode (off
) And self-test mode (ready, running, done, abort)
, Wait), the operation of the data recorder 1 is distinctly different, parameters that can be set in the normal operation mode can hardly be set in the self-diagnosis mode, and commands related to tape running are ignored.

This is because the self-diagnosis mode is performed so that the self-diagnosis can be performed under certain conditions, and each parameter cannot be set and changed inside the data recorder 1. As a result, it is possible to prevent the problem that the criteria for self-diagnosis cannot be fixed because the setting of each parameter is changed during the self-diagnosis. In addition, since there is a self-diagnosis using the tape in particular, external commands relating to tape running are also blocked.

In this way, in the data recorder 1, by distinguishing the normal operation mode and the self-diagnosis mode, it is emphasized that the data recorder 1 currently used is in the self-diagnosis mode. In fact, in the self-diagnosis mode, an important recorded tape may be accidentally erased because of the automatic recording function.

Although there is an accident prevention function for this, basically there is a possibility of an accident of erasing data if self-diagnosis is performed with an important tape still inserted. Therefore, the normal mode and the self-diagnosis mode are used. A clear distinction is made. Further, when the self-diagnosis mode is entered, the self-diagnosis menu as shown in FIG. 4 is displayed on the display device on the control panel (CP) 13 on the front surface of the data recorder 1, and the user is informed that the self-diagnosis mode is entered. It is designed to inform.

In the above configuration, the switching from the normal operation mode to the self-diagnosis mode only needs to set which function is to be diagnosed, and the self-diagnosis control unit 34 of the main CPU 30 for self-diagnosis by this performs mode input. It will be in a ready state. In this state, for example, when the self-diagnosis (mode-1) not using the magnetic tape is set, the display on the control panel (CP) 13 changes from FIG. 4 (A) to FIG. 4 (B).

When the self-diagnosis setting is completed in this state and a self-diagnosis start command (start-command) is input, the self-diagnosis is started to enter the running state (running), and the control panel (CP) 13 is displayed. Changes from FIG. 4 (B) to FIG. 4 (C). If self-diagnosis (mode-1) that does not use the magnetic tape is set, but the magnetic tape is inserted, move to the tape wait state (wait) and lift the magnetic tape halfway. , Self-diagnosis is started and it becomes running status.

Self-diagnosis using a standard tape (mode-2)
If a self-diagnosis (mode-3) that uses a recordable magnetic tape is set and a self-diagnosis start command (start-command) is input, the installed reference tape or recordable magnetic tape It checks whether it is correct, and if it is suitable, self-diagnosis is started and it is in the running state.

On the other hand, if the tape is not suitable, the tape wait state (wait) is entered, the tape is ejected, and then the mode input wait state (ready) is entered. Further, when the magnetic tape is not attached, the mode input waiting state (ready) is maintained without doing anything. Such self-diagnosis mode setting and self-diagnosis start instruction (start-co
The operation at the time of turning on the mmand) allows the self-diagnosis to be executed only under the correct conditions.

When the self-diagnosis is executed in this way,
The data recorder 1 enters the running state (running), and if the self-diagnosis ends normally, it moves to the normal end state (done), and if it ends abnormally, it moves to the abnormal end state (abort). When the self-diagnosis ends normally, if there is no message of the self-diagnosis result, it ends normally and there is no error.
ne (pass)) and control panel (CP) 13
Is changed from FIG. 4 (C) to FIG. 4 (D).

On the other hand, when the self-diagnosis ends normally and there is even one message, the normal end abnormal condition exists (done (fail)) and the control panel (CP)
The display of 13 changes from FIG. 4 (C) to FIG. 4 (E). If you set the self-diagnosis (mode-1) without using the magnetic tape and lift the tape up to the middle, if there is no normal termination error (done (pass)), re-attach the tape and there is a normal termination error. If the status is (done (fail)), the tape is ejected. If a cancel command (abort-command) is sent in the normal end state (done), the mode input waiting state (ready) is restored, and new self-diagnosis can be set again.

In the self-diagnosis of the data recorder 1, abnormal termination is caused when a fatal error occurs during execution of the self-diagnosis, or the user issues an instruction (abort-command) for arbitrarily stopping the self-diagnosis. It occurs in the event of an abnormal end (abort) and the control panel (C
The display of (P) 13 changes from FIG. 4 (C) to FIG. 4 (F). When this abnormal end status (abort) is entered, the self-diagnosis cannot continue anymore, and the user is given a stop command (exit-c
ommand) to the data recorder 1 to reset the entire system and return to the normal operation mode.

In practice, the self-diagnosis operation command is a start-command which is a self-diagnosis start-up command, and is used to stop the self-diagnosis operation or change to a mode input waiting state (ready).
There is an abort-command and an exit-command that puts the system reset to the normal operation mode. In addition to being set internally, these commands can also be set from the control panel (CP) 13 of the data recorder 1. For example, [SHIFT] + [FWD] is start-comman
d, [SHIFT] + [STOP] is abort-command, [SHIFT] + [S
Pressing [TOP] means exit-command. Also, during self-diagnosis, the buttons for tape operation such as [FWD] and [EJECT] are locked, and commands from the outside are blocked.

According to the above construction, in the self-diagnosis mode different from the normal operation mode, the self-diagnosis of the mechanical system and / or the servo system and the magnetic tape on which the reference signal is recorded are used without using the magnetic tape. By performing the self-diagnosis of the reproduction processing system and / or the self-diagnosis of the recording processing system by using the recordable magnetic tape, the data recorder 1 that can surely execute the self-diagnosis of each part by a simple operation is provided. realizable.

In the above embodiment, the present invention is applied to a data recorder for recording and reproducing information data on a magnetic tape, but the present invention is not limited to this, and may be applied to a video tape recorder, a digital audio tape recorder, or the like. Further, the recording medium is not limited to a magnetic tape, and is suitable for wide application to a recording / reproducing apparatus for recording and reproducing a predetermined information signal on a magnetic disk or an optical disk.

[0036]

As described above, according to the present invention, in a self-diagnosis state different from the normal operation state, self-diagnosis of a mechanical system and / or a servo system without using a recording medium, and recording in which a reference signal is recorded. The self-diagnosis of the reproduction processing system and / or the self-diagnosis of the recording processing system using the recordable recording medium are performed by using the medium, so that the self-diagnosis of each part can be surely executed by a simple operation. It is possible to realize a recording / reproducing device to obtain. As a result, the usability for the user can be significantly improved.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of a data recorder to which a recording / reproducing apparatus according to the present invention is applied.

2 is a block diagram showing a configuration of an SSP substrate in the data recorder of FIG.

FIG. 3 is a state transition diagram used to explain a self-diagnosis operation in the data recorder of FIG.

4 is a schematic diagram showing a display of a control panel during self-diagnosis in the data recorder of FIG.

[Explanation of symbols]

1 ... Data recorder, 2 ... Input / output interface (PIF), 3 ... Digital signal processor (PR),
4 ... Recording circuit (RF-REC), 5 ... Rotating head,
6 ... Magnetic tape, 7 ... Playback circuit (RF-PB), 8
...... Audio signal processing system (AE), 9 ... CTL head, 10 ... TC head, 11 ... SSP substrate, 12 ...
Interface board (IF) 13 Control panel 30 Main CPU 31 Drive unit control CPU 32 Signal processing CPU 33 Input / output control CPU 34 Self-diagnosis control device , 35 …… Clock, 3
6 ... Backup power supply, 37 ... Storage device, 38 ...
Reset line control circuit, 39 ... Power-on reset circuit.

Claims (3)

[Claims] 1. A recording / reproducing apparatus for recording and reproducing an information signal on a predetermined recording medium, which has a self-diagnosis state in addition to a normal operation state and records a first self-diagnosis and reference signal which does not use the recording medium. A second self-diagnosis using the above-described recording medium and / or a third self-diagnosis using the recordable recording medium are performed. 2. A mechanical system and / or a servo system is diagnosed in the first self-diagnosis, a reproduction processing system is diagnosed in the second self-diagnosis, and a recording processing system is diagnosed in the third self-diagnosis. The recording / reproducing apparatus according to claim 1, wherein 3. When the recording medium is loaded at the time of executing the first self-diagnosis, the recording medium is ejected to continue the first self-diagnosis, and the second and / or the second self-diagnosis is performed. The above-mentioned recording medium mounted at the time of executing the self-diagnosis of No. 3, and if the recording medium is inappropriate, the second and / or the third self-diagnosis is interrupted. The recording / reproducing apparatus according to Item 1.