JPH01271964A - Recording/reproducing device - Google Patents

Abstract

PURPOSE:To collect, keep and accumulate the data relative to the use of a mechanical operation part by detecting an operation of the mechanical part and storing the data on the use of the relevant part. CONSTITUTION:When a still video camera is started up, and a shutter releasing operation of a motor 54 to be driven by turning a shutter releasing button 15 on and a shutter 36, etc., is detected, the number of operations is stored in a memory in a system control device 10. In addition, the opening and closing of a packet attending upon the actions of drawing, loading and exchanging a floppy 1 is detected by a switch 47, and the number of actions is stored in the memory in the device 10. Furthermore, when it is detected that a magnetic head 2 is moved by a solenoid 85, it is stored in the relevant place in the memory. The data in the memory are reproduced to be used for maintenance.

Description

DETAILED DESCRIPTION OF THE INVENTION Summary of the Invention The operation of a mechanically operating part of a recording/reproducing device is detected and data regarding the use of the mechanically operating part (number of operations, operating time, etc.) is stored in a non-volatile memory. to be memorized. At the time of maintenance or the like, by reading this data from the memory, the usage status of the relevant part of the device can be known. This read data also serves as basic data regarding durability. Furthermore, when a device fails, it can be used to estimate the location and cause of the failure.

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a recording/reproducing apparatus that includes a recording apparatus that writes signals to a recording medium, a reproducing apparatus that reads recorded signals from the recording medium, and a recording/reproducing apparatus that has both recording and reproducing functions. An example of a recording/reproducing device is a magnetic recording/reproducing device that writes signals on a magnetic disk/reads recorded signals from a magnetic disk, but the present invention also relates to a device that records/reproduces signals optically or magneto-optically. It includes.

Prior Art and its Problems Such a recording/reproducing device is constructed by combining a part that performs electrical operation and a part that performs mechanical operation, and the durability of this device depends on the mechanical operation. It often depends on the part that performs the process.

For example, a still video camera that records video signals on a magnetic recording medium that rotates twice, and a magnetic reproducing device that reproduces video signals recorded on a magnetic recording medium.

In a magnetic recording/reproducing device having both recording and reproducing functions, packets are opened and closed in order to load a magnetic recording medium into the device and take it out from the device. In addition, a head loading operation that brings the magnetic head for recording/reproduction into contact with a magnetic recording medium, and a head uncoding operation that separates the magnetic head from the magnetic recording medium are performed every time recording/reproducing or when the power is turned on. , is performed when it is off. In a still video camera, a shutter release operation is performed every time a photograph is recorded. In particular, shutter release operations are performed frequently in cameras that have a continuous shooting mode in which still images are continuously taken at several frames per second. Furthermore, during the reproducing operation in the reproducing apparatus, the magnetic head is in contact with the recording medium, so that the magnetic head is likely to wear out.

In conventional recording/reproducing devices, no data was collected regarding the use of such mechanically moving parts.

SUMMARY OF THE INVENTION OBJECTS OF THE INVENTION It is an object of the present invention to make it possible to collect, store, and accumulate data regarding the use of mechanically operating parts in a recording/reproducing device.

Structure of the Invention The present invention provides a recording/reproducing apparatus that performs at least one of writing a predetermined signal onto a recording medium and reading a recorded signal from the recording medium, and which controls the operation of a mechanically operated part of the apparatus. The present invention is characterized by comprising a detection means for detecting the detection and a non-volatile storage means for storing data regarding the use of the part that operates mechanically based on the detection by the detection means.

Action and effect According to the invention, in a recording/reproducing device.

The movement of the mechanically moving part is sensed and data relating to the use of the part are stored in the non-volatile storage means. What are the parts that perform mechanical movements?

For example, in the case of a magnetic recording/reproducing device, the shutter release switch part 9 mechanical shutter part, packet opening/closing mechanism, magnetic head loading/unloading mechanism,
This refers to a magnetic head, etc., but it is sufficient if data regarding the use of at least one of these parts is collected. Data regarding usage includes, for example, the number of operations, operation time, and the like.

Data related to the use of parts that perform mechanical operations are stored in non-volatile storage means, so even if the power is turned off, the stored data will not be erased, and the data related to use will not be erased. is stored without error.

The data stored in the nonvolatile storage means is read from the storage means, for example, during maintenance of the device.

Data regarding the usage of the parts that perform mechanical operations can be used to know the usage status of the parts that perform mechanical operations in the device. It will also be used as basic data regarding the durability of these parts. moreover,
In some cases, it can be used to estimate the cause of failure. It could also be used to compare the frequency of operation of these parts with predetermined limits, and to indicate on a display that maintenance, replacement, etc. is required when the limits are near.

In this way, the invention collects, stores and accumulates data regarding the use of mechanically moving parts, which is an important factor in determining the lifespan of the device, and therefore allows this data to be used for various purposes. It is beneficial to be able to do this.

DESCRIPTION OF THE EMBODIMENTS FIG. 1 shows the system configuration of a still video camera.

This still video camera has three controllers: system controller 10. It is controlled by the photographing control device 30 and the recording control device 70. These control devices 10
．． Each of the 30.70 is composed of a CPU (for example, a microprocessor), a memory (RAM, ROM, etc.) for storing its programs and necessary data, and necessary interface circuits. The CPU of the system control device 10 is the main CPU, and controls the overall operation of the still video camera. The system control device 10 also includes a non-volatile memory, which stores data regarding the use of parts that perform mechanical operations, as will be described later.

The CPUs of the photographing control device 30 and the recording control device 70 are sub-CPUs, and operate according to commands from the main CPU. The photography control device 30 controls focusing, aperture,
Performs control related to photography such as shutter speed and zoom.

The recording control device 70 controls recording of video signals on the video floppy 1, such as driving the disk motor 3, loading/unloading the magnetic head 20, and transporting the magnetic head 2. These control devices 10.30.70 are interconnected by a plurality of serial transmission lines and communicate with each other.

A regenerator (regeneration adapter) 90 can also be connected.

This regenerator 90 demodulates the video signal read from the video floppy disk 1, converts it into a color video signal in, for example, NTSC format, and outputs the converted signal. Regenerator 90
also includes a CPU 91 and memory, and this CPU 91
is positioned as a sub CPU for the main CPU.

A still video camera is provided with a packet that can be opened and closed. Video floppy 1 is inserted into the opened packet, and when this packet is closed, video floppy 1 is transferred to disk motor 3. Chuffed by the spindle.

The video floppy 1 has a plurality of (for example, 50) tracks (for example, a track pitch of 100 μm) concentrically arranged, and through the photographing process, 1) one field (for one frame) is placed on the rack; or 1 in 2 tracks
One frame's worth of FM-modulated color video signals (including a luminance signal, one color difference signal, etc.) are magnetically recorded. The 50 tracks arranged concentrically on the magnetic recording surface of the video floppy 1 have N
Track numbers from 1 to 50 are assigned. The home position HP (original position or standby position) is located outside the track No. 011, and the end position EP is located inside the track No. 50.

The system controller 10 includes a power switch 16. Various mode switches 11-14. Switch input signals such as shutter release button 15, open/close status of packet containing video floppy (and video if necessary) 0
A detection signal from a nokkerato switch 7 that detects the presence or absence of a leak, a detection signal from a dew condensation sensor 8 that measures the humidity near the attachment point of the video filter 1, and the like are input. The modes that can be set include frame/field mode that indicates frame recording or field recording, ski knob mode that creates empty tracks that are not recorded on the video floppy, and eddy soto (edit) that records on empty tracks.
There are modes etc. The set mode, the track number to be recorded or erased, and other information are displayed on the liquid crystal display 21. This display 21 is connected to the system control device 10 by bus. Also detects condensation,
When any other abnormal condition occurs, the buzzer 22 sounds an alarm. The detection of dew condensation may be displayed on the display 21. The display 21 may also display data related to the use of parts that perform mechanical operations (operation frequency, number of operations, operation time, etc.) stored in the nonvolatile memory, or may display data stored in the nonvolatile memory, such as operation frequency, number of operations, operation time, etc. The limit values may be compared, and a warning may be displayed when these data approach the limit value.

The power switch 16 is a push button type.

When pressed, a pulsed switch signal is input to the main CPU of the system control device 10 as an interrupt signal.

The shutter release button 15 is of a two-stage stroke type, in which the first stage of depression releases the switch S1, and the second stage of further depression of the button 15 causes the switch S2 to be released.
are respectively turned on. When switch S1 is turned on, disk motor 3 is driven. After this, switch S2
When turned on, photographing and recording are performed.

The imaging optical system includes a zoom lens system 31. An imaging lens system 32 for forming a subject image. Aperture 33. A beam that is deflected in order to make a part of the incident light enter the photometric element 51.
Splitter 34. It is composed of an infrared cutoff filter 35 and a shutter 36. The illuminance detection signal of the photometric element 51 is input to the photographing control device 30 via the logarithmic amplifier 52. By the shooting control device 30.

A process of calculating an aperture value and a shutter speed based on the incident light illuminance detected by the photometric element 51.

The aperture 33 is controlled based on the determined aperture value, and the shutter 3B is opened and closed based on the similarly determined shutter speed. Opening and closing of the diaphragm 33 is performed by a diaphragm motor 48 driven by a driver 47. Aperture 33
A switch 49 is also provided for detecting the opening and closing limit positions of the opening and closing limits. Unlatching and winding of the leading and trailing curtains of the shutter 36 are performed by a shutter drive device including a shutter motor 54 driven by a driver 53. The rotation angle of the motor 54 is detected by a rotary encoder 55 and fed back to the device 30.

The color detection signal from the color sensor 61 is subjected to predetermined processing in a white balance processing circuit 62 and then input to the device 30 manually. This white balance data is applied to the R in the variable gain amplification circuit described later in the signal processing circuit 71.
, G, and B signals for amplification gain control.

In order to determine the distance to the subject n1, an infrared light emitting diode 63 and a light receiving element 64 that receives the reflected light are provided, and a focusing processing circuit 65 calculates the distance to the subject based on the output signal of the light receiving element 64. The data that represents this is obtained. Using this data, an autofocus motor 46 is driven via a driver 45 under the control of the device 30 to perform focusing control.

Additionally, a tele to enter the degree of zoom.

In response to signals from wide switches 38 and 39, control device 30 drives zoom motor 42 via driver 41 to set a predetermined magnification.

The rotation angle of the motor 42 is detected by a rotary encoder 43 and fed back to the device 30.

At the focal plane of the imaging optical system, a solid-state electronic imaging device 37 for three primary colors, which is composed of a two-dimensional imaging cell array such as a CCD, is arranged.

The image data accumulated in the imaging device 37 when the shutter 36 is opened is read out as a serial still video signal (R, G, B) in synchronization with vertical and horizontal synchronizing signals given from the signal processing circuit 71. and input to the signal processing circuit 71.

The signal processing circuit 71 includes an oscillation circuit, and generates and outputs a vertical reference signal VD and a reference clock signal from the output signal of the oscillation circuit. The vertical reference signal VD is supplied to the system controller 10. It is given to the photographing control device 30 and the recording control device 70, and serves as a reference for the operation timing in these devices. The reference clock signal is provided to the servo control circuit 80. As will be described later, the phase pulse PG representing the reference phase of rotation of the video floppy 1 is transmitted to the signal processing circuit 71. System control device 10. Recording control device 70 and playback device 9
It is given to o. A reset signal given from the recording control device 70 adjusts the vertical reference signal VD in the signal processing circuit 71 so as to maintain a constant phase relationship with the phase pulse PG. The signal processing circuit 71 also generates vertical and horizontal synchronization signals having a constant phase relationship with the phase pulse PG.

The signal processing circuit 71 further includes a preamplification circuit and a variable gain amplification circuit (
white balance adjustment circuit) and process matrix circuit. A luminance signal Y and two color difference signals RY and BY are created in the process matrix circuit. These color difference signals R-Y and B-Y are then line-sequentialized for each IH in a line-sequentialization circuit 72. The luminance signal Y and the line-sequential color difference signal pass through a pre-emphasis circuit (path shown) and are FM-modulated in different frequency bands in FM modulation circuits 73 and 74, respectively, and then sent to a synthesis circuit 75.
is synthesized with

It is also possible to record additional information signals on tracks of the floppy disk 1. The additional information signal is an acoustic signal (
narration, etc.) and display signals (representing voices such as narration, music, etc.)
For example, it means character information). This additional information signal is input to the signal processing circuit 71 from a microphone or other input device (not shown), converted into a predetermined format, and output to the luminance signal Y line. The additional information signal S may be superimposed on the luminance signal Y, or when only this signal S is recorded on a predetermined track of the video floppy 1, it is output alone.

Furthermore, it is possible to multiplex record ID data on a video floppy. This multiplexed ID data includes an initial bit, field/frame data indicating field recording or frame recording, and track address (No.).
data, date data, and user usage data. These data are given from the system controller 10.

In the signal processing circuit 71, D P S K (Dl['f'e
rentlal PhaseShift Keying
) is modulated, combined with the above-mentioned FM modulated video signal in a combining circuit 76, and input to a recording amplifier circuit 77.

A magnetic head 2 (
The floppy disks (two floppy disks are provided at intervals adjacent to each other to enable frame recording) are supported movably in the radial direction of the video floppy 1 by their transfer drive control device, and are transferred in the same direction. controlled. This transfer drive control device includes a step motor 87 and its driver 8B. The recording control device 70 sends instructions regarding the direction and amount of movement of the magnetic head 2 to the transfer drive 1. .

control device. Magnetic head 2 is at home position H
A home position switch 6 for detecting that P has been reached is also provided, and a detection signal from this switch 6 is given to a recording control device 70.

A head loading device is provided to prevent marks from being formed on the floppy disk due to the magnetic head 2 contacting the stopped video floppy disk 1 for a long period of time. This device is a head load solenoid 85
Under the control of the recording control device 70, the magnetic head 2 is operated only during recording or playback (when the video floppy 1 is rotating) or only while the power is turned on. The magnetic head 2 is displaced (advance or retreat) so that it comes into contact with the video floppy 1 (head loading), and at other times away from the floppy 1 (head unloading).

In order to improve the contact between the magnetic head 2 and the rotating video floppy 1, a regulating plate (not shown) is provided on the opposite side of the magnetic head 2 across the video floppy 1. In addition, the core of Video Floppy 1 includes:
Detect leakage magnetic flux of permanent magnet for chucking and record video
A phase detector 5 that outputs a phase detection signal when the floppy disk 1 reaches a predetermined angular position is nearby. The output detection signal of the phase detector 5 is waveform-shaped by a phase pulse generation circuit (waveform shaping circuit) 82 and outputted as a phase pulse PG. circuit 71
and is input to the recording gate circuit 78. phase pulse PG
will be generated once per rotation of the video floppy 1.

The disk motor 3 is driven by its driver 81. The rotational speed of the disk motor 3 is detected by a frequency generator 4 and output from this frequency generator 4.

A detection signal with a frequency proportional to the rotation speed of the motor 3 is input to the servo control circuit 80. The servo control circuit 17 controls the motor 3 based on the reference clock signal input from the signal processing circuit 71 and the frequency detection signal input from the detector 4.
is controlled to rotate at a constant speed (for example, 3.BOOr, p, m,). Also the servo control circuit 80. The motor 3 is started and stopped in accordance with commands from the recording control device 70.

The still/video signal etc. amplified by the recording amplifier circuit 77 is input to a recording gate circuit 78 . and recording control device 7
When a recording command is given from 0.

In the field recording mode, this gate circuit 78 is opened at the timing of the manually input phase pulse PG until the next phase pulse is input. As a result, video signals and the like are applied to the magnetic head 2, and recording of still video signals and the like onto one predetermined track of the video floppy 1 is performed. This recording is performed only while the video floppy 1 rotates once. In the frame recording mode, gate circuit 78 opens its gate for two revolutions of video floppy 1, and the first
During the second rotation, one Herad 2 sends the video signal of the first field to a certain track.

In the second rotation, the video signal of the second field is recorded by the other head 2 on the adjacent track.

It is also possible to reproduce video signals etc. from the video floppy disk 1 using the magnetic head 2. The FM modulated video signal etc. read from the magnetic head 2 similarly passes through a gate circuit 78 and is amplified by an amplifier circuit 77 and sent to an envelope detection circuit 8.
3 and regenerator 90. This reproduction is used for track search processing not only in the reproduction mode but also in the recording mode.

The envelope detection circuit 83 is a detection circuit that detects the envelope of the read signal of the magnetic head 2, that is, the FM modulated video signal recorded on the track of the video floppy 1, and outputs a voltage signal corresponding to the envelope. It includes an A/D (analog/digital) conversion circuit. The voltage signal representing the envelope is converted into a digital quantity by an A/D conversion circuit, and is input to the recording control device 70 into an 8-bit digital signal representing, for example, 256 quantization levels.

The envelope detection signal is used by the recording control device 70 to determine whether a track on the video floppy 1 is unrecorded or recorded (track search processing). If the level of the detected signal does not reach a predetermined threshold level when the magnetic head 2 is moved across a track, that track is unrecorded, and if it has reached the threshold level, then The track has already been recorded.

If necessary, the envelope detection signal is also used in the recording check process. The recording check process is to check whether the recorded still/video signal has been recorded on a predetermined track using the magnetic head 2 as described above, and whether the envelope detection signal has been recorded on a predetermined track. If it is equal to or higher than the threshold Φ level, it is determined that recording has been performed.

The envelope detection signal is further used in the reproduction mode to detect the center position of the signal recorded on the track to be reproduced (the peak position of the envelope detection signal). This peak position detection process involves moving the magnetic head 2 across the track to be reproduced, detecting the position where the envelope detection signal shows a peak, and positioning the magnetic head 2 at this peak position.

The still video camera is further equipped with a power supply circuit 110. The power supply circuit 110 includes a main power source (battery) 1
11 and an auxiliary power source (battery) 112 are provided. Main power supply 111 provides operating power to all electrical components of the still video camera. Auxiliary power supply 11
2 is the system control device 10 when the main power supply 111 is off (that is, the main power control switch 113 described later is off).
The main CPU is in standby mode at this time. Therefore, the main power source 111 and the auxiliary power source 112 are connected in parallel to the system control device 10. Main power supply 111
A main power control switch 113 is connected to the output side of the main power supply control switch 113. This switch 113 is controlled by the system controller 10 to be the power switch 16 or the regenerator power switch 96.
If the switch 113 is off when a switch signal is input from the switch 113, it is turned on, and is connected to each part of the still/video camera as well as the system controller 10 and the regenerator 90 via the voltage adjustment circuit 114. At times, power is supplied to the regenerator 9o from the main power source 111.

Also, when the switch 113 is on, the power switch 1B
Alternatively, when the power switch 96 is pressed and a switch signal is input to the system control device 10, the system control device 1o
This turns off the switch 113, stopping the supply of main power to the still video camera and the player 90. Additionally, the camera or regenerator 90 for a predetermined period of time
When no switch operation is performed, the main power control switch 113 is turned off by an auto power-off operation by the system control device 10.

The regenerator 90 is removably attached to the main body of the still video camera. When the regenerator 90 is attached to a still video camera, the main power supply 111 and the auxiliary type Ig, l l
The power supply line from 2, the reproduced video signal line from the recording amplifier circuit 77, the phase pulse PG line, and the serial transmission line are connected to the same lines on the regenerator 90 side by connectors (paths shown). , the switch signal line of the power switch 9B of the regenerator 90 is connected to the same line of the power switch 1B.

In the regenerator 90, the power supplied from the power supply line of the still video camera is supplied to its sub CPU 91 via a voltage adjustment circuit 98, and is also supplied to other electrical devices within the regenerator 90 via a main power control switch 97. Supplied to components. The regenerator 90 is also provided with a push button type power switch 96. This power switch 96
The pulsed switch signal is given to the sub CPU 91 as an interrupt signal, and is also given as an interrupt signal to the main CPU of the system control device 10 of the still video camera. That is, two power switches 16 and 96
are connected in parallel to the system controller 10 when the regenerator 90 is installed.

As described above, the main CPU of the system control device 110 is in standby mode when the main power control switch 113 is off, but is activated when an interrupt signal from the power switch is input, and when the switch 113 is turned on. do. In addition, in order to determine whether the power switch interrupt is from the power switch 16 or the power switch 96,
It communicates with the sub CPU 91 of the regenerator 90. When the power switch 9B is pressed, the switch interrupt from the switch 9B is also given to the sub CPU 91, so when there is an inquiry from the main CPU regarding the power switch, if there is an interrupt from the switch 96, Sub CPU9
1 notifies that it is a switch 96 interrupt. In this case, the regenerator 90 is already attached to the camera. Still video cameras are normally in record mode (including the above-mentioned skip mode, edit mode, etc.);
When it is determined that the power switch 96 of the regenerator 90 has been pressed, the camera enters replay mode. On the other hand, when the main power is off, the sub CPU 91 of the regenerator 90 is in a standby state, and is activated by an interrupt signal from the power switch 96.
The main power control switch 97 is turned on to start the operation of the regenerator 90.

Of course, a separate switch for setting the playback mode may be provided.

If the regenerator 90 is not attached to the camera, the main C
There is no response to the makeshift from the PU. Even if the regenerator 90 is attached, if the power switch 96 is not pressed, the sub CPU 91 notifies the above-mentioned timing that the power switch 96 is not pressed. As a result, the main CPU of the system control device 10 determines that the power switch 16 has been pressed, and maintains the recording mode.

The regenerator 90 is further provided with a processing circuit 99 for a still video signal input from a reproduced still video signal line of the still video camera. The processing circuit 99 includes a separation circuit for luminance signal components and color difference signal components, a field/frame conversion circuit, an FM demodulation circuit, a synchronization circuit, a DPSK demodulation circuit for ID data, etc., and reproduced still/video signals. is processed by this circuit 99 and output as an NTSC format video signal. This circuit 99 also outputs the above-mentioned additional information signal, data signal, etc.

The regenerator 90 further includes a forward switch 92 for inputting a command to move the magnetic head 2 forward by one track. Reverse feed switch 93 for sending one track in the reverse direction. There are provided an erase switch 94 for inputting a command to erase signals recorded on the video floppy 1, and a track number designation switch 95 for designating the track number on which the magnetic head 2 is to be positioned. The regenerator 90 transmits commands from these switches to the control device 10 through communication with the system control device 10, and the control device IO further transmits the commands to the recording control device 70 through communication to cause the commanded operation to be performed.

In this embodiment, the data regarding the use of the parts of the still φ video camera that perform mechanical operations include the number of times the shutter is released, the number of times the packet is opened and closed, the number of times the head is loaded/unloaded, and the cumulative playback time.

The number of shutter releases is counted based on the switch input from the shutter release button 15. This data relates to the durability of shutter release button 15 and shutter 36.

The number of times the packet is opened and closed is counted using the detection signal of the packet switch 7. This data relates to the durability of the packet opening and closing mechanism.

The number of head load/unload times is counted by the number of times the head load solenoid 85 is operated. This concerns the durability of the head load/unload mechanism.

The cumulative playback time is determined by adding the time during which the magnetic head 2 is loaded and the video floppy 1 is rotating when the playback device 90 is connected and enters the playback mode. During this reproducing operation, the head 2 is in contact with the floppy disk 1, so the head 2 is easily worn out.

Therefore, this cumulative regeneration time represents the degree of wear of the magnetic helad 2 or relates to its durability. The magnetic head 2 is in contact with the video floppy 1 in the still video signal recording mode as well, but since the recording time in the recording mode is extremely short, it is not necessarily necessary to count it. Of course, the time may be counted and integrated.

FIG. 2 shows a procedure for collecting data regarding the use of such mechanically moving parts.

When the main power switch 113 of the still/video camera is turned on by pressing the power switch 1B or 96, the camera becomes activated.

If each of the above-mentioned parts of the still video camera has been operated (YES at step 120), it is determined which part has been operated.

When the shutter release operation of the shutter drive system such as the shutter motor 54 and the shutter 36 driven by the shutter release button 15 being pressed is detected (step 121), the memory in the system control device IO ( The shutter release operation count data in the storage location related to the shutter release operation (not necessarily non-volatile) is incremented by 1 (step I
22).

When the packet switch 47 detects the opening/closing of a packet due to ejection, loading, or replacement of the video floppy 1, and the detection signal is input to the system controller 10 (step 123), the storage location related to the packet opening/closing operation in the memory is Packet opening/closing operation count data is +
1 (step 124).

The magnetic head 2 is driven by a head load solenoid 85 for recording or reproduction (load/unload)
If it is detected that the memory location has been loaded/unloaded (step 125), the number of head load/unload operations for the memory location related to the head load/unload of the memory is incremented by one (step 126).

In the playback mode, when the video signal of a predetermined track recorded on the video floppy 1 is being read by the magnetic head 2, the playback time is counted and integrated (step 127), and the playback operation of the memory location regarding the cumulative playback time is performed. The accumulated time is incremented as time passes (step 128).

Steps 120-12 until power switches 1B and 96 are pressed again to turn off the still video camera.
8 is repeated for each operation, and data regarding the use of each part is updated. Power switch IB and 9
6 is pressed again to put the still video camera into standby mode. or for a specified period of time.
When the auto power off function activates and enters standby mode due to no camera operation, (
Step +29), the shutter release operation count data, packet opening/closing operation count data, head load/
Unload operation count data and playback operation cumulative time are
The added data is added to each data stored in each data storage location in the nonvolatile memory and then stored (step 130).

The above cumulative data stored in non-volatile memory is
During maintenance or the like, data can be read by connecting a data reading device instead of the regenerator 90. Further, the information may be displayed on the display 21 as described above.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing the system configuration of a still video camera, and FIG. 2 is a flow chart showing a processing procedure for collecting data regarding the use of parts that perform mechanical operations. 1...Video floppy. 2...Magnetic head. 7...Packet switch. 10... System control device. 18, 96...Power switch. 36...Shutter. 54...Shutter motor. 85...Head load solenoid. 87...Step motor. 113...Main power control switch. that's all

Claims (1)

[Scope of Claims] In a recording/reproducing device that performs at least one of writing a predetermined signal to a recording medium and reading a recorded signal from the recording medium, the operation of a mechanically operating part of the device is detected. 1. A recording/reproducing device comprising: a detection means for detecting a motion; and a non-volatile storage means for storing data regarding the use of a part that operates mechanically based on detection by the detection means.