JP2526048Y2 - Recording and playback device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION A Industrial Field of the Invention The present invention relates to a recording / reproducing apparatus, and is suitably applied to, for example, a small rotary head type digital audio tape recorder.

B. Summary of the Invention In the present invention, in the recording / reproducing apparatus, the operation information is displayed on the display means for displaying the progress information of the recording medium for a predetermined period from the timing at which the operation state changes according to the operation information. Accordingly, useful information can be displayed to the user with only the minimum necessary display means.

C Conventional technology Conventionally, in this type of rotary head type digital audio tape recorder (DAT), a tape count value indicating a running state of a magnetic tape and operation modes of recording, reproduction, fast forward, and rewinding are each provided with a dedicated display. Display so that the user can see which DAT is in use.
The operation state of the device can be accurately grasped.

D Problems to be solved by the invention By the way, when trying to further reduce the size of the DAT, due to the space on the DAT housing, the display of the operation mode is omitted, and only the tape count value is absolutely necessary display information. Into a 7-segment 4-digit LCD (liquid
Some are designed to be displayed on a crystal display.

If this is a DAT, the user can record, play,
Even when performing operations such as fast-forwarding and rewinding, there is a problem that it is not possible to confirm whether or not the operation was successful unless the change in the tape count value displayed on the LCD display or the movement of the magnetic tape itself is observed. It was still inadequate in terms of usability.

The present invention has been made in view of the above points, and aims to propose a recording / reproducing apparatus capable of displaying useful information to a user with only a minimum necessary display unit.

E Means for Solving the Problems In order to solve the problems, in the present invention, the operation information DT _MOD is specified in the recording / reproducing apparatus 1 having the display means 12 for displaying the progress information DT _CNT of the recording medium 3. Input means 13A to 13E for inputting and input control means 6 for controlling a recording / reproducing operation according to the operation of the operation input means 13A to 13E,
14, first buffer means 9 for holding progress information DT _CNT input from drive means 2A, 2B, 8 of recording medium 3, and operation information DT _MOD input from input control means 6, 14. The second buffer means 15 and the progress information DT _CNT or the operation information D held in the first or second buffer means 9 or 15
T _MOD is selected, and the display information selecting means 10 to be transmitted to the display means 12 as the display information DT _DSP , and the operation transition information S _CHM input from the input control means 6, 14 allow the user to confirm the erroneous operation. A timer means 16 for controlling the display information selecting means 10 only during the time to select the operation information DT _MOD is provided.

F Action Operation transition information S indicating that the operation state has transitioned from the input control means 6, 14 to the operation input means 13A to 13E.
_{When the CHM} is input, the timer means 16 controls the display information selecting means 10 only for the confirmation time during which the user can confirm the malfunction, and the operation information DT _MOD held in the second buffer means 15
Is transmitted to the display means 12, whereby the operation information DT selected by the display information selection means 10 instead of the progress information DT _CNT is displayed on the display means 12 only during the confirmation time according to the transition of the operation state.
_The operation state corresponding to the _MOD is displayed, and after the confirmation time has elapsed, the display on the display means 12 is changed from the operation state display to the progress information DT.
_The display can be automatically switched to the _CNT display, and useful information can be displayed to the user with only the minimum necessary display means 12.

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

In FIG. 1, reference numeral 1 denotes a small DAT as a whole. A magnetic tape 3 led out from a supply reel 2A of a tape cassette 2 as shown by an arrow a is guided by guide pins 4A and 4B, and a rotary head is mounted. After being wound around the drum 5, the tape is wound up on a take-up reel 2B of the tape cassette 2.

In the case of the DAT1, the system control circuit 6 having a microcomputer configuration supplies a drive control signal _SDR corresponding to a predetermined operation mode to the motor drive circuit 7.

As a result, the motor drive circuit 7 outputs the rotation head drive signal S
D _HD , supply reel drive signal SD _SP and take-up reel drive signal S
A _DTU is generated and supplied to the respective motors of the drum 5, the supply reel 2A and the take-up reel 2B, so that the rotary head, the supply reel 2A and the take-up reel 2B are rotated in accordance with the operation motor. It has been done.

The supply reel 2A and the take-up reel 2B are provided with, for example, a rotation frequency detection device having a frequency generator configuration,
As a result, the obtained supply reel frequency signal FG _SP and take-up reel frequency signal FG _TU are input to the speed detection circuit 8.

The speed detection circuit 8 first detects the rotation cycles of the supply reel 2A and the take-up reel 2B from the supplied supply reel frequency signal FG _SP and take-up reel frequency signal FG _TU , for example.

Thus, the speed detection circuit 8 detects the running speed of the magnetic tape 3 according to the supply reel rotation period and the take-up reel rotation period, and obtains the resulting magnetic tape traveling speed data DT.
_V is sent to the system control circuit 6.

The system control circuit 6 creates a tape count data DT _CNT in accordance with the sequential driving of the magnetic tape 3 on the basis of the magnetic tape running speed data DT _V input, and sends it to the selector 10 a through count display buffer 9.

During normal operation, the selector 10 selects the tape count data DT _CNT input from the count display buffer 9 and sends it to the LCD drive circuit 11 as the display data DT _DSP. A tape count value corresponding to the _CNT can be displayed.

The LCD display unit 12 has 7 segments 4
Digits LCD12A, 12B, 12C, 12D and "REC" for recording operation
It consists of LCD12E for display, using LCD12A-12D of 4 digits,
The tape count value can be displayed by four-digit numbers “0000” to “9999”.

Here, in the case of this DAT1, the system control circuit 6 includes a play key 13A, a fast forward key 13B, a rewind key 13C, a pause key 1
Each part of the DAT 1 is controlled in accordance with an operation motor signal S _MOD input from an input control circuit 14 having a 3D and recording key 13E.

In the case of this embodiment, the input control circuit 14
When 13A to 13E are operated and the operation mode transits, the mode transition signal S _CHM indicating the timing at which this operation mode transits
Is transmitted to the timer circuit 16 and the operation mode display data DT _MOD corresponding to the operated operation keys 13A to 13E is transmitted to the selector 10 through the operation mode display buffer 15.

The timer circuit 16 has about 2 to 5 according to the mode transition signal S _CHM.
A second timer is set, and a selector signal SEL for selecting the operation mode display data DT _MOD input from the operation mode display buffer 15 is transmitted to the selector 10 during this period.

Thereby, the selector 10 selects the operation mode display data DT _MOD inputted from the operation mode display buffer 15 for a period of about 2 to 5 seconds in accordance with the selector signal SEL, and uses this as the display data DT _{DSP by the} LCD drive circuit. The operation mode corresponding to each of the operated operation keys 13A to 13E can be displayed on the LCD display unit 12 instead of the tape count value.

Actually, as shown in FIGS. 3 (A) to 3 (E), when the reproduction key 13A is operated, the LCD display unit 12 displays for a predetermined period.
The character "PLAY" indicating the playback mode is displayed, and the fast forward key 13
When B is operated, the character "FF" indicating the fast forward mode is displayed, when the rewind key 13C is operated, the character "rE" indicating rewind is displayed, and when the pause key 13D is operated, the character is temporarily displayed. The character "PAUS" indicating stop is displayed, and the recording key 13
When E is operated, the character "REC" representing the recording can be displayed.

The display on the LCD display section 12 is operated by the operation keys 13A as described above.
13E is operated, characters indicating operation modes corresponding to the operation keys 13A to 13E operated for a predetermined period are displayed, and then the magnetic tape 3 operating according to each operation mode is displayed.
Is displayed as four-digit numbers "0000" to "9999".

In the case of DAT1, when the recording key 13E is operated, the LCD
The display section 12 (12A to 12C) shows the character “RE
After "C" is displayed, even during the display of the tape count value, it is possible to use the "REC" display LCD 12E to indicate that the recording operation is being performed, in addition to the count value.

In the case of the DAT 1, the tape information detection sensor 17 can detect the erroneous erasure prevention hole 2C provided at the lower end of the tape cassette 2. A tape information signal S _TAPE indicating recording prohibition is input to the system control circuit 6.

Accordingly, when the recording key 13E is operated and the operation mode signal S _MOD indicating the recording mode is input from the input control circuit 14, the system control circuit 6 refers to the tape information signal S _TAPE input from the tape information detection sensor 17. I do.

As a result, upon detecting that the tape information signal S _TAPE indicates that recording is prohibited, the system control circuit 6 generates erroneous operation data DT _ERR indicating that the operation of the recording key 13E can be erroneously operated, and replaces this with the tape count data DT _CNT. Is transmitted to the selector 10 through the count display buffer 9.

Thus, after the selector 10 displays "REC" indicating the recording mode by the D of the timer circuit 16, as shown in FIG. 3 (F), it indicates the erroneous operation of the recording key 13E according to the erroneous operation data DT _ERR. The characters "Err" and the "REC" display LCD 12E are blinked.

According to the above configuration, the LCD display unit 12 that displays the count value of the magnetic tape 3 for a predetermined period from the timing when the operation mode is changed according to the operated operation keys 13A to 13E.
By displaying the operation mode corresponding to the operation keys 13A to 13E, the small DAT 1 which can display useful information to the user only by the LCD display section 12 and thus can greatly improve the usability of the user. realizable.

In the above-described embodiment, a case in which a 7-segment, 4-digit LCD is used as the display means has been described. However, the present invention is not limited to this. Means may be used, in other words, a display unit that displays the running count value of the magnetic tape may be diverted, and the transitioned operation mode is displayed only for a predetermined period after the operation mode transition. The same effects as those of the above-described embodiment can be realized.

In the above-described embodiment, the case where the recording operation is performed only by operating the recording key has been described. In this case, an erroneous operation may be detected only by operating the recording key.

Further, in the above-described embodiment, the case where the present invention is applied to a small DAT has been described.However, the present invention is not limited to this, and for example, in order to reduce the size in an audio tape recorder device, a compact disk device or a video tape recorder device. The present invention is suitable for wide application to a recording / reproducing apparatus having a display unit for displaying only progress information of a recording medium such as a magnetic tape, a compact disk, and a video tape.

H Effects of the Invention As described above, according to the present invention, a display for displaying progress information of a recording medium only during a confirmation time period in which a user can confirm a malfunction from a timing at which an operation state changes according to an operation of an operation input unit. The operation state is displayed on the means, and after the elapse of the confirmation time, the display on the display means is automatically switched from the operation state display to the progress information display. It is possible to realize a recording / reproducing apparatus capable of displaying information and thus greatly improving the usability of the user.

[Brief description of the drawings]

FIG. 1 is a block diagram showing an embodiment of a DAT according to the present invention, FIG. 2 is a schematic diagram showing an LCD display unit thereof, and FIG. 3 is a schematic line showing display contents of the LCD display unit according to operation keys. FIG. 1 ... DAT, 2 ... Tape cassette, 2C ... Erase detection hole, 3 ... Magnetic tape, 6 ... System control circuit, 9 ...
… Count display buffer, 10… Selector, 11… LCD
Drive circuit, 12 LCD display, 13A to 13E Operation keys, 1
4 ... Input control circuit, 15 ... Operation mode display buffer, 1
6 ... Timer circuit, 17 ... Tape information detection sensor.

Claims (1)

(57) [Scope of request for utility model registration] 1. A recording / reproducing apparatus having means for displaying a progress state of a recording medium, an operation input means for designating operation information, and an input control for controlling a recording / reproducing operation in accordance with an operation of the operation input means. Means; first buffer means for holding progress information input from the drive means for the recording medium; second buffer means for holding the operation information input from the input control means; A display information selecting unit that selects the progress information or the operation information held in the second buffer unit and sends the selected information to the display unit as display information; and an operation transition information input from the input control unit. Timer means for controlling the display information selection means and selecting the operation information only during a confirmation time when the user can confirm the malfunction, and responding to the operation of the operation input means. The operation state corresponding to the operation information selected by the display information selection means is displayed on the display means only during the confirmation time from the timing at which the operation state has transitioned, and after the confirmation time has elapsed. Recording / reproducing apparatus, wherein the display of the display means is automatically switched from the operation state display to the progress information display.