JP3000618B2 - Recording and playback device - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a recording / reproducing apparatus, and is suitably applied to, for example, a digital audio tape recorder.

B. Outline of the Invention In the recording / reproducing apparatus, the present invention integrates and stores the number of times of operation of a predetermined operation unit from a predetermined point of time, and switches the display to a display unit of a running state to display the information. The number of integrated operations of the predetermined operation unit can be detected.

C Conventional Art Conventionally, a so-called rotary head type DAT which performs a helical scan of a magnetic tape has been used as a digital audio tape recorder (DAT) for recording and reproducing digital audio signals at high density.

That is, in such a DAT, the magnetic tape derived from the tape cassette is obliquely wound at a predetermined winding angle around the drum on which the rotating head is attached, so that the rotating head can perform helical scanning on the magnetic tape. ing.

D Problems to be Solved by the Invention Meanwhile, in the DAT having such a configuration, the durability of the cassette lid mechanism by taking the tape cassette in and out is selected as a consumer device about a predetermined number of times, and the cassette lid is actually used at the time of service. If the number of times, that is, the number of accumulated operations can be known, it is considered that the consumable part can be replaced before the end of its life, and the maintainability can be improved.

The present invention has been made in view of the above points, and has as its object to propose a recording / reproducing apparatus capable of detecting the number of integrated operations of a predetermined operation unit with a simple configuration.

Means for Solving the Problem In order to solve the problem, according to the present invention, a cover 3B for opening and closing the insertion opening 3A of the recording medium 8, a detection switch for detecting the opening and closing of the cover 3B, and a detection switch for detecting the detection switch A counter for counting the output, a memory 20 in which the value of the counter is written, a display unit 4 for displaying the running state of the recording medium 8, a display of the running state of the recording medium 8 on the display unit 4, and reading from the memory 20. And a control unit 15 for switching and displaying the output of the output counter value.

F action The number of times of opening and closing of the lid 3B for opening and closing the insertion opening 3A of the recording medium 8 is counted and stored, and the number of opening and closing is switched and displayed on the display unit 4 for displaying the running state of the recording medium 8, thereby simplifying the operation. With the configuration, the number of times of opening and closing of the lid 3B can be known, and the opening and closing mechanism parts of the lid 3B can be replaced accordingly.

G Example Hereinafter, an example of the present invention will be described in detail with reference to the drawings.

(G1) Configuration of DAT According to Embodiment In FIG. 1, reference numeral 1 shows the overall appearance of the DAT according to the present invention. On the front panel 1A, a power switch 2, a cassette input port 3A for a tape cassette, and the input port 3A are provided. Cassette lid 3 that covers and guides the insertion of the tape cassette
B, a display section 4, a tape operation button section 5, a recording volume 6, and the like are arranged.

In the DAT 1, when the power switch 2 is controlled to be turned on and the eject button 5A of the tape operation button section 5 is pressed, the cassette lid 3B is opened, the tape cassette is inserted into the insertion port 3A, and the eject button 5A is again activated. When the pressing operation is performed, the cassette lid 3B is closed and cassette loading is performed.

After this, when the tape cassette is loaded inside DAT1,
Tape loading is performed at the mechanical deck mechanism.

That is, as shown in FIG. 2, the magnetic tape 8 led out from the supply reel 7A of the tape cassette 7 loaded therein as shown by the arrow a is guided by the inclined guides 10A and 10B through the guide pins 9A and is guided to the drum 11. It is wound by a predetermined winding angle.

Thereafter, the magnetic tape 8 is sandwiched between the capstan 12A and the pinch roller 13 and is written on the take-up reel 7B through the guide pin 9B.
It is loaded into a mold.

Here, the reel motor for driving the supply reel 7A and the take-up reel 7B of the tape cassette 7, the drum motor for driving the drum 11, and the capstan motor 12B for driving the capstan 12A are driven by the motor drive circuit 14, respectively. The driving is controlled by signals DR _SP , DR _TU , DR _DM and DR _CP .

The motor drive circuit 14 sends out predetermined drive signals DR _SP , DR _TU , DR _DM and DR _CP to each motor according to the drive mode data DR _MODE input from the DAT control circuit 15.

The DAT control circuit 15 has a micro computer configuration including a CPU (central processing unit). The DAT control circuit 15 receives an operation command C _OPR input from an operation switch unit 16 or a remote sensor 18 through a remote commander 17 in response to a user operation.
Drive mode data DR _MODE is generated according to (C _OPR1 or C _OPR2 ) and supplied to the motor drive circuit 14.

In the case of the embodiment, the DAT control circuit 15 includes, for example, an E ² PROM
(Erasable and electrically reprogrammable read on
ly memory), a memory circuit having a non-volatile memory configuration 20
Is connected.

This is the memory circuit 20 status data DT _STS like during the initial value data DT _INT or power-off for each set of DAT1 is stored,
Accordingly, the DAT control circuit 15 responds to the ON operation of the power switch 2 so that the initial value data DT _INT and the state data D
Reads T _STS etc., it executes the initial control of the entire DAT1.

The reel motor driving the supply reel 7A and the take-up reel 7B is provided with a frequency detecting device having a frequency generator configuration.
The FG _SP and the take-up reel frequency signal FG _TU are input to the speed detection circuit 19.

The speed detecting circuit 19 detects the traveling speed of the magnetic tape 8 based on the supplied supply reel frequency signal FG _SP and the take-up reel frequency signal FG _TU , and detects the traveling speed data DT.
_It is supplied to the DAT control circuit 15 as _SV .

As a result, the DAT control circuit 15 inputs the traveling speed data D
Based on T _SV , a reproduction signal (not shown) input from the rotating head of the drum 11, etc., the absolute time data T _ABS representing the elapsed time from the beginning of the magnetic tape 8 and the progress of each program consisting of songs and the like. Program time data T _PGM representing time
Is detected.

Time data T made in this way is detected by the absolute time data T _ABS or program time data T _PGM is selected based on the operation command C _OPR is by connexion input to a user operation, the display as display data DT _DSP It is sent to the display unit 4.

The display unit 4 is composed of, for example, a front emission type fluorescent display tube (FL-VFD). As shown in FIG. 3 (A), a 7-segment numeral display unit SG and a predetermined number are provided as counter display units DSP. A character display portion L composed of a character pattern is arranged.

In practice, numerical display unit SG consists of one when the display unit of the digits SG _N, 2 minute display unit of the digits SG _M1, SG _M2 and the second display unit SG _S1, SG _S2.

In addition, the display unit L _M of the letter "M" character display portion L, which represents the display unit L _H of the letter "H", in response to the minute display unit SG _M minute representing the time in response to the display unit SG _H when and it consists of a display unit L _s of the letter "s" representing the second corresponding to the second display unit SG _s.

As a result, the counter display unit DSP sets the time data T in the display data DT _DSP input from the DAT control circuit 15 as
For example, when data indicating 1 hour, 23 minutes, and 45 seconds is set, as shown in FIG. 3B, the display section L indicating hours, minutes and seconds is turned on, and the hour display section SG _H and the minute display are displayed. The value “1”, the value “23” and the value “4” are displayed in the section SG _M and the second display section SG _S , respectively.
"5" is displayed as the tape running state display DSP _CNT .

In this way, in the case of this DAT1, the time data T consisting of the absolute time data T _ABS or the program time data T _PGM corresponding to the running state of the magnetic tape 8 is displayed in response to the operation of the user during normal use. Counter display
It can be displayed on the DSP.

Here, in the case of the DAT1 of this embodiment, for example, at a service site or the like, the cassette cover 3B from the time when the DAT1 was manufactured is replaced with the tape running state display DSP _{CNT including the} time data T on the counter display unit DSP. The number of times of the integration operation can be displayed.

Therefore, when the power switch 2 is controlled to be turned on, the CPU of the DAT control circuit 15 executes the cassette lid operation frequency integration display processing procedure RT0 shown in FIG.

(G2) Casing lid operation count integration display processing procedure of the embodiment The CPU of the DAT control circuit 15 executes the cassette lid operation number integration display processing procedure at the timing when the power switch 2 is turned on.
Upon entering RT0, in the following step SP1, the memory circuit 20
The cassette lid operation number data DT _CHC stored in the non-volatile memory is read out to the cassette lid operation number counter CNT _CHC .

Next, in step SP2, the CPU determines whether or not the open switch of the cassette lid 3B is on.

Actually, in the case of DAT1, for example, an open switch having a microswitch configuration is provided, and has an ON state or an OFF state according to the opening or closing of the cassette lid 3B.

If the CPU obtains a positive result in step SP2 (that is, this indicates that the open switch is in the ON state), the CPU determines in step SP3 whether or not there is an open flag.

If the CPU obtains a negative result (that is, this indicates that the open flag is not set), the CPU sets the open flag in step SP4.

Subsequently, in the next step SP5, the CPU counts up the cassette lid operation number counter CNT _CHC and _stores the contents of the cassette lid operation number counter CNT _CHCHC in the cassette lid operation number data DT of the nonvolatile memory of the memory circuit 20.
After writing to _CHC , move to step SP6.

If the CPU obtains a negative result in step SP2 (that is, this indicates that the open switch is in the OFF state), the CPU proceeds to step SP7, resets the open flag, and then proceeds to step SP6.

If the CPU obtains an affirmative result in step SP3 (that is, this indicates that the open flag has already been set), the CPU proceeds directly to step SP6.

In this step SP6, the CPU determines whether or not the cassette lid operation number display mode is present, and if an affirmative result is obtained here (that is, this is a service command by operating the operation switch unit 16 or the remote commander 17), the number of operation times of the cassette lid 3B Is displayed), the next step SP
In step 8, the value of the cassette lid operation count counter CNT _CHC is set as the display data DT _DSP , and this is displayed on the display unit 4.
To send to.

Thus, the counter display section DS of the display section 4
As shown in FIG. 3 (C), a cassette lid cumulative operation number display DSP _CHC indicating the number of operation of the cassette lid 3B is displayed on P, and thereafter the CPU returns to the above-mentioned step SP2.

At this time, in the counter display unit DSP, the display units L _H , L _M , and L _S representing the hours, minutes, and seconds are turned off, and
When the display unit SG _H, minute display unit SG _M1, SG _M2 and the second display unit SG _S1, S
Using the G _S2 , the value of the cassette lid operation number counter CNT _CHC input as the display data DT _DSP is displayed using a numerical display of five digits from “00000” to “99999”.

If the CPU obtains a negative result in step SP6, the CPU proceeds to step SP6.
The process proceeds to SP9 and sends the normal time data T to the display unit 4 as the display data DT _DSP as described above.

The counter display section DSP of the result display section 4
Then, the time data T described above with reference to FIG. 3 (B) is displayed, after which the CPU returns to step SP2 described above.

In this way, the CPU of the DAT control circuit 15 executes the cassette lid operation number integration display processing procedure RT0 to constantly integrate the number of operations from the time of manufacturing the cassette lid 3B in a normal use state by the user, The data is written to the nonvolatile memory of the memory circuit 20.

In addition to this, the cumulative number of operations of the cassette lid 3B is displayed in response to a command input at the time of service. The counter display part DSP of the display unit 4 displays the number of cassette lid cumulative operations in place of the tape running state display DSP _CNT comprising time data T DSP _CNT.
It is designed to be displayed as DSP _CHC .

(G3) Effects of the Embodiment According to the above configuration, the number of times of opening and closing the cassette lid 3B from the time of manufacture in a normal use state by the user is always integrated and stored, and in response to a command input at the time of service. By displaying this, the DAT1 can detect the cumulative number of operations of the cassette lid 3B with a simple operation.
Can be realized.

Further, according to the above-described configuration, the number of integrated operations of the cassette lid 3B is stored in a part of the nonvolatile memory of the memory circuit 20 in which initial value data, power-off state data, and the like for each set are stored. By switching the display to the tape running state display of the counter display unit DSP of the display unit 4 and displaying the obtained number of accumulated operations, the number of accumulated operations of the cassette lid 3B can be detected in the same configuration as in the related art. .

Further, according to the above-described configuration, the number of times of operation of the cassette lid 3B can be easily detected at the time of service, so that it is possible to reliably know the replacement time due to wear or the like of the operating part of the cassette lid 3B, thus improving maintainability. DAT that can be significantly improved can be realized.

(G4) Other Embodiments (1) In the above embodiment, the case where the number of times of operation of the cassette lid is integrated and displayed is described. However, the present invention is not limited to this, and other operation units such as a tape loading mechanism may be used. The number of operations may be integrated and displayed, and if necessary, these may be combined and integrated and displayed.

(2) In the above-described embodiment, a case has been described in which the number of operations from the time of manufacture of the operating portion including the cassette lid is integrated and displayed. However, the present invention is not limited to this. In the case of replacement or the like, the same effect as in the above-described embodiment can be realized by resetting the contents of the memory and integrating and displaying the number of operations from the time of replacement.

(3) In the above embodiment, a case was described in which a memory circuit having a nonvolatile memory configuration composed of an E ² PROM was used. However, the present invention is not limited to this, and another nonvolatile memory may be used. good.

(4) In the above-described embodiment, the case where the front display type fluorescent display tube (FL-VFD) is used as the display unit has been described. However, the present invention is not limited to this. If you try to divert things,
For example, cathode ray tube, LED (light emitting diode), LCD
(Liquid crystal display) can be used to achieve the same effect as in the above-described embodiment.

(5) In the above-described embodiment, the case where the present invention is applied to a digital audio tape recorder has been described. However, the present invention is not limited to this, and is suitable for being widely applied to a recording / reproducing apparatus having various operation units. Things.

H Advantageous Effects of the Invention As described above, according to the present invention, the number of times of opening and closing of the lid for opening and closing the insertion opening of the recording medium is counted and stored, and if necessary, the running number of the recording medium is displayed. By displaying on the display unit, the number of times the lid is opened and closed can be displayed with a simple configuration.

[Brief description of the drawings]

FIG. 1 is a schematic front view showing an embodiment of a recording / reproducing apparatus according to the present invention, FIG. 2 is a block diagram showing the configuration thereof, and FIG.
FIG. 4 is a schematic plan view showing the counter display unit, and FIG. 4 is a flow chart showing the procedure for displaying the cumulative number of operation of the cassette lid. 1 ... DAT, 2 ... Power switch, 3A ... Cassette inlet, 3B ... Cass lid, 4 ... Display display part, 5
…… Tape operation part, 7 …… Tape cassette, 7A, 7B ……
Reel, 8 Magnetic tape, 11 Drum, 12A Capstan, 20 Memory circuit.

Claims (1)

(57) [Claims] A cover for opening and closing an insertion opening of a recording medium; a detection switch for detecting the opening and closing of the cover; a counter for counting a detection output of the detection switch; a memory in which a value of the counter is written; A display unit for displaying a running state of the recording medium; and a control unit for causing the display unit to switch and display a display of the running state of the recording medium and a display of the value of the counter read from the memory. A recording / reproducing apparatus characterized in that