KR0176387B1 - Vcr - Google Patents

Abstract

The present invention relates to a means for checking the audio output of a plurality of deck units to the main body of the copying apparatus in a tape copying apparatus for copying a plurality of blank tapes, conventionally connecting the audio amplifier and the speaker of each of the deck unit output side It is difficult to avoid the inconvenience of the connection work because it is taking a means to check, while checking the recording state through a plurality of audio amplifiers and speakers, etc. also had a difficult and cumbersome problem.

The present invention provides a unit selection unit connected to the input port of the microcomputer 25a of the system to provide an input for selecting any one of the audio signal units A21 to A23 of the deck unit. 11) and the microcomputer 25a which is connected to the control port of the microcomputer 25a and provides control output to the audio switch units 12; 12A and 12B for each unit according to the input condition of the unit selector 11; And a unit-specific audio switch unit 12 for switch operation, which is connected to the control output of the microcomputer 25a and sends audio output of the plurality of deck units 21 to 23 to one audio output jack LAJ1 or RAJ1. ), An audio output unit 13 which is connected to the output side of the audio switch unit 12 for each unit and outputs an audio signal through an audio output jack LAJ1 or RAJ1, and the audio switch for each unit. To provide a deck by the audio signal processing system of the sub-audio output selection copying apparatus with a tape yirwojyeo to (A21 ~ A23) so connected to the input side of (12) to provide a deck by the audio signal.

Description

Audio output selection processing system of video tape copying equipment

1 is a reference diagram showing a front state of a conventional video tape copying apparatus.

2 is a reference diagram showing a back state of FIG.

3 is a system circuit block diagram of FIG.

4 is an embodiment of an audio output selection control circuit according to the present invention.

5 is an embodiment of an audio selection control processing program according to the present invention.

* Explanation of symbols for main parts of the drawings

11: Unit selector 12, 12A, 12B: Audio switch unit by unit

13: audio output unit 13a, 13c: left / right amplifier

13b, 13d: left / right speaker 14: audio signal drive unit

25a: microcomputer

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tape copying apparatus (also known as a duplexer) for copying a plurality of video tapes. In particular, the audio output of a plurality of deck units of such a tape copying apparatus can be selectively listened to with one audio amplifier and speaker. I would have to.

When a video program records from a recorded tape to a plurality of blank tapes, a tape copying apparatus called a duplicater is used, and this type of typical type is shown in FIG. 1 and FIG.

Here, a plurality of deck units 21 to 23 are coupled to each other using the double-sided handle b from the front side of the copying unit main body 24, and each of the deck units 21 to 23 has an insertion portion (a) for loading a tape. ) And control switch.

In addition, a remote control input / output jack, an audio input / output jack, a video input / output jack, and the like are arranged on the back of the copying apparatus as shown in FIG.

On the other hand, the system circuit of such a copying apparatus is shown in more detail as shown in FIG.

Here, the deck units 21 to 23 each include a sheath cone circuit 26 connected to an L / C motor, a servo circuit 29 connected to a drum motor and a capstan motor, and a hi-fi audio head HFH. An audio circuit 27 connected to a back light and a video circuit 28 connected to a video head PRH. The main body 24 of the copier device includes a main computer including a microcomputer 25a for system control. A circuit 25, a front circuit 31 including a selection switch / warning indicator, etc., a back circuit 30 associated with the audio / video input / output jack, etc., a power supply circuit 32 of the system, and the like. Doing.

In addition, when the deck units 21 to 23 are coupled to the copying apparatus main body 24, connection points including points A, B, and C are connected as shown in FIG. 3, so that the copying unit main body 24 and the deck units 21 to 23 are connected. 23) When the external video signal for video copy is connected to the audio input (AI) and the video input (VI) side while making the connection state between them, the copy operation of the tape through the deck units 21 to 23 is performed. .

And, in the conventional copier device, are the deck units 21 to 23 respectively coupled to the copier main body 24 to perform audio recording on the copier main body 24 and the deck units 21 to 23 properly? In order to know the state of the back, the audio output jacks as shown in FIG. 2, independent audio amplifiers and speakers were connected to each deck unit (21 ~ 23) to check whether the audio is properly recorded.

However, such a conventional method is complicated to install each audio amplifier and speakers to each of these deck units to the copying unit body 24 side, and on the other hand, a plurality of audio amplifiers and speakers It was difficult to avoid the hassle and difficulty in checking these recordings by checking their tape recording status.

In particular, when such a system is a hi-fi audio recording / reproducing system, a plurality of left / right amplifiers and speakers are required, which causes further complexity of the system, which is not preferable.

It is an object of the present invention to selectively check the recording status of deck units in such a copying device via a single audio amplifier and speaker by user switch selection, or to connect and use individual audio amplifiers and speakers. It is to ensure good convenience.

The present invention particularly provides a unit selection unit connected to a microcomputer input port of the system to provide an input for selecting any one of the deck units, so as to realize the object of the above example, and a unit connected to the control port of the microcomputer. A microcomputer that provides control output to the audio switch unit for each unit according to the input condition of the selection unit, and a switch-operated unit that sends audio output of multiple deck units to one audio output jack side following the control output of the microcomputer. An audio output unit for outputting an audio signal through an audio output jack connected to an output audio switch unit of the unit audio switch unit, and an input side of the unit audio switch unit for providing an audio signal for each deck. Deck-specific audio signal Copy of the configuration that becomes a video tape is characterized by the audio output system selection process of the device.

Hereinafter, by referring to this in more detail with the accompanying drawings will be understood more specific features of the present invention.

That is, Fig. 4 shows an audio output selection control processing system of the video tape copying apparatus according to the present invention.

Here, a unit selector 11 connected to an input port of the microcomputer 25a of the system and providing an input for selecting any one of the audio signal units A21 to A23 of the deck unit, and the microcomputer ( A microcomputer 25a that provides control output to the audio switch units 12; 12A and 12B for each unit in accordance with the input condition of the unit selector 11, following the control port of 25a), and the microcomputer 25a. A unit-specific audio switch unit 12 for switching the audio output of the plurality of deck units 21 to 23 to one audio output jack LAJ1 or RAJ1, followed by a control output of It is connected to the output side of the unit 12 and is connected to an audio output unit 13 for outputting an audio signal through the audio output jacks LAJ1 or RAJ1, and an input side of the unit-specific audio switch unit 12. There yirwojyeo to the deck by the audio signal portion (A21 ~ A23) that provides a specific audio signal.

In addition, when the system is a hi-fi system, since the audio signal processing system is composed of a left / right audio signal system, the audio switch unit 12 for each unit is composed of left / right audio switch units 12A and 12B for each unit. The audio output unit 13 also includes left and right audio amplifiers 13a and 13c and left and right speakers 13b and 13d.

In addition, the system includes a left and right audio signal drive unit 14 for an independent mode for everyday use, which is composed of circuits for the signal drive transistors 14a and 14b, respectively, and their outputs are respectively left. / Right audio jacks (LAJ2, LAJ3, RAJ2, RAJ3).

In addition, the unit selector 11 connects the first to third switches S1 to S3 for selecting any one of the deck-specific audio signal units A21 to A23 of the deck units, and the switches S1 to S3. And the first to third resistors R1 to R3 for changing the input resistance of the microcomputer 25a, and the audio switch units 12 and 12A and 12b for each deck are provided for each deck unit's audio signal unit ( Resistors R4 to R6 connected to the audio outputs ALO, BLO, CLO, ARO, BRO, and CRO of the A21 to A23, respectively, and the first to third electronic switches 12a to 12c respectively connected thereto. An or gate 12d connected to the first and second electronic switches 12a and 12b to control the third switch 12c, and to an output of the first to third switches 12a to 12c. It consists of a continuous buffer gate 12e.

According to the present invention, the deck units 21 to 23 are mounted on the main body 24 side of the copying apparatus 2, as shown in FIGS. 1 to 4, respectively. Insert a blank tape through a), and plug the corresponding jack plug into the audio / video input jacks (AI, VI), the remote control input jacks (RI), etc., as shown in FIG.

At this time, the audio signal units A21 to A23 of the deck units 21 to 23 are output to audio outputs ALO, BLO, CLO, ARO, BRO, and CRO of the left and right audio jacks LAJ1, RAJ1, and LAJ2, respectively. , LAJ3, RAJ2, RAJ3) are connected, so that you can listen to audio using individual audio amplifiers and speakers as before, and through one audio output unit 13 through audio jacks LAJ1 and RAJ1. The audio signals generated from the deck-specific audio signal units A21, A22, and A23 of each deck unit may be selectively listened to.

Therefore, when checking the recording state by one audio output unit 13 using the audio output jacks LAJ1 and RAJ1, the deck unit required among the selection switches S1 to S3 in the unit selection unit 11 of FIG. If you select (21 ~ 23), the corresponding audio output is connected to the audio output jacks (LAJ1, RAJ1) from the audio signal unit (A21, A22, A23) for each deck and outputs the audio output of the corresponding deck unit. Listening can be confirmed through the unit 13.

As an example, the control operation of the microcomputer 25a for this selection is performed through the control outputs C1 and C2, and the output state for the logic of the control outputs C1 and C2 at this time is shown as follows.

Therefore, when the user selects the switch S1, C1 and C2 become logic 1 and 0 as described above, so that the electronic switch 12a of the switch unit 12 for each unit is in the connected state, and the electronic switch 12b is in the open state. The electronic switch 12c is in the open state with the output of the or gate 12d being logic 1.

In the above state, the audio outputs ALO and ARO of the deck unit 21 are connected to the electronic switch 12a, the buffer 12e, the audio output jacks LAJ1 and RAJ1, and the audio output unit 13. The audio output of can be confirmed through the left and right amplifiers 13a and 13c and the left and right speakers 13b and 13d of the audio output unit 13.

When the user selects the switch S2, C1 and C2 become logical 0s and 1s as described above, and the electronic switch 12a of the audio switch units 12; 12A and 12B for each unit is in an open state and the electronic switch 12b. Is in a connected state, and the electronic switch 12c is in an open state with the output of the or gate 12d being logic 1.

Also in the above state, the audio outputs BLO and BRO of the deck unit 22 are connected to the electronic switch 12b, the buffer 12e, the output jacks LAJ1 and RAJ1, and the audio output unit 13. The audio output of can be confirmed through the audio output unit (13).

When the user selects the switch S3, C1 and C2 become logic 0 and 0 as shown in FIG. 5, and the electronic switch 12a of the audio switch unit 12 for each unit is open and the electronic switch 12b is also opened. The electronic switch 12c is in the connected state with the output of the or gate 12d being logic 0.

In this state, the audio outputs CLO and CRO of the deck unit 23 are connected to the electronic switch 12c, the buffer 12e, the audio output jacks LAJ1 and RAJ1, and the audio output unit 13. The audio output of the unit 23 can be confirmed through the audio output unit 13.

On the other hand, the above operation is performed by the system microcomputer 25a together with the audio selection control processing program 100 of FIG. 5, which checks whether the switch S1 of the unit selection unit 11 is turned on. If it is on, the control output to select the output of the deck unit 21 is generated. If the switch S1 is not on, the control output is checked. If it is on, the control output to select the output of the deck unit 22 is generated. When the switch S2 is not turned on, it is checked whether the switch S3 is turned on, and when the switch is turned on, a control output for selecting the deck unit 23 is generated to perform the above-described selection operation (steps 101 to 106). .

In addition, in the above system, there is an example in which an audio output confirmation means through a hi-fi system is devised. However, if necessary, the mono audio output system may be configured as one audio output system instead of the left / right audio signal processing.

In this case, the left / right audio signal units A21, A22 and A23 per deck, the audio switch units 12A and 12B per unit, the audio output jacks LAJ1, LAJ2, LAJ3, RAJ1, RAJ2, and RAJ3, and the audio output unit 13 You can achieve this by configuring a single system configuration.

Therefore, the user can selectively listen to the audio outputs of the deck units with one audio output unit 13 as needed.

In the present invention, the audio output of the plurality of deck units mounted on the copying apparatus in a tape copying apparatus for copying a plurality of blank tapes is not recorded and confirmed through each audio amplifier, speaker, etc. Selective verification allows for complex and hassle-free verification of recordings on these devices, and if necessary, it can provide a flexible user environment that can be used to verify recordings as well. There is a beneficial characteristic that is.

Claims (6)

A tape copying device comprising a deck unit (21 to 23) for filling a plurality of blank tapes respectively, and a main body (24) for mounting and accommodating them, respectively, connected to an input port of the microcomputer (25a) of the system. A unit selector 11 providing an input for selecting any one of audio signal units A21 to A23 of the deck unit, and a unit selector 11 connected to a control port of the microcomputer 25a. The microcomputer 25a which provides a control output to the audio switch units 12; 12A and 12B for each unit according to the input condition of the unit, and the plurality of deck units 21 to 23 are connected to the control output of the microcomputer 25a. Audio output unit 12 of the switch operation for sending the audio output of the terminals to one audio output jack LAJ1 or RAJ1, and the output of the audio switch unit 12 for each unit. An audio output unit 13 for outputting an audio signal through a jack LAJ1 or RAJ1, and a deck-specific audio signal unit connected to an input side of the audio switch unit 12 for each unit to provide an audio signal for each deck ( A21 to A23), wherein the audio output selection processing system for a video tape copying device. The method of claim 1, wherein the unit selector 11 is connected to the first to third switches (S1 to S3) and these switches (S1 to S3) for selecting any one of the deck units (21 to 23) micro An audio output selection processing system for a video tape copying apparatus, comprising first to third resistors R1 to R3 for varying an input resistance of a computer 25a. The first and third electronic switches 12a of claim 1, wherein the audio switch unit 12 for each unit has a resistor R4 to R6 connected to the audio output side of each deck unit 21 to 23, respectively. 12c), an ore gate 12d connected to the first and second electronic switches 12a and 12b to control the third switch 12c, and the first to third switches 12a to 12c. Audio output selection processing system of a video tape copying apparatus, characterized in that it consists of a buffer gate (12e) connected to the output of the field. The audio output jacks of the other deck units, together with the audio output jacks connected to the output side of the tech-specific audio switch unit 12, are the deck-specific audio signal units A22 of the deck units 22 and 23, respectively. And A23) audio output selection processing system of a video tape copying apparatus, connected to the audio output side. The system according to claim 1, wherein the system comprises left and right deck audio switch units 12A and 12B aimed at the left and right audio signal system of hi-fi audio, and left and right audio signal units A21, A22 and A23 per deck. And a left / right audio output jack (LAJ1, LAJ2, LAJ3, RAJ1, RAJ2, RAJ3), a left / right audio output unit (13), and the like. The audio output of the videotape copying apparatus according to claim 5, wherein the left and right audio output units (13) comprise left and right amplifiers (13a, 13c) and left and right speakers (13b, 13d). Optional processing system.