KR0139434Y1 - Function mode peristalsis controlling apparatus - Google Patents

Abstract

The present invention provides a video tape recorder with a playback function from a video tape recorder. When the power of the television is turned off, the video tape recorder side interlockedly executes the still mode of the video tape. Excessive function mode interlock control device to turn off the power.

Accordingly, the present invention provides a function setting unit 12 for setting a key for the power-off function in the AV mode and power-off control at the time of power-off setting at the time of power-off setting of the function setting unit 12. The microcomputer 14 performs interlocking control according to the interlocking detection result of the function mode, the power circuit unit 16 turning off the power switch 16A under the power-off control of the microcomputer 14, and cuts off the power. Detecting unit 18 for performing the year detection by detecting the external video signal from the input unit 6 and the power switching state of the power circuit unit 16, the control data for the interlocking control from the microcomputer 14 A television (100) having a control output section (20) for outputting the video tape recorder (200) side; The control input unit 6 for receiving control data for interlocking control from the control output unit 20 of the television 100, a timer 38 for timekeeping time through the generation of a clock clock, and the interlocking control. Control unit for controlling the transition to the still mode for the video tape 22 as a result of receiving the control data for the control, and to turn off the power after a predetermined time by the time of the timer 38 ( 40) and a video tape recorder 200 equipped with a power circuit section 42 for shutting off power by turning off the power switch 42A under the power-off control of the controller 40.

Description

Function mode interlock control device

1 is a block diagram showing the configuration of a television and a video tape recorder to which a function mode interlocking control device according to the present invention is applied.

2 is a diagram showing a detailed circuit configuration of the detection unit shown in FIG.

Third is a flowchart illustrating the operation according to the preferred embodiment of the present invention.

* Explanation of symbols for main parts of the drawings

2: Tutor 4: Video IF unit

6: AV input unit 8: Mode switch unit

10: image signal processing unit 12: function setting unit

14: microcomputer 16: power supply circuit (television side)

18: detection unit 20: control output unit

22: video tape 24: head drum

26: servo drive unit 28: motor drive mechanism

28A: Drum Motor 28B: Reel Motor

28C: Capstan motor 30: Playback signal amplifier

32: playback signal processing section 34: playback signal output section

36: control input unit 38: timer

40: control section 42: power supply circuit section (video taper coater side)

44 inverter 46 comparator

48: Andgate

The present invention relates to a function mode interlock control device, and more particularly, to automatically play back a video tape recorder when an operation of turning off the power supply is performed while the recorded information of the video tape is played by executing the AV playback mode on a television. And it relates to a functional mode interlocking control device to enable the power off function after a predetermined time to be performed interworking.

In the television which is currently generally used, a predetermined channel is selected among a plurality of channels transmitted from a plurality of television broadcasting stations by executing a mode of the television mode, and video / audio playback of the corresponding program is performed, or a video is executed by executing a mode of the AV mode. The video signal and audio signal of the video tape transmitted from the tape recorder (VCR) can be signal-processed and reproduced. In such a television, an external AV signal input terminal is provided on the rear side of the video tape recorder. It is connected by an AV signal output terminal formed in a predetermined portion with a wired cable so that recorded information read from a video tape can be introduced and reproduced.

On the other hand, in a video tape recorder employing such a television as an output device for video / audio signals read from a video tape, the information recorded on the video tape can be reproduced, as well as recording and reservation recording of predetermined video information. Are aimed independently of each other.

However, when the TV is in the AV mode and the read information from the videotape is reproduced by the videotape player's playback operation, the television may not be available due to the elapse of off-time due to the operation of the viewer or the off-time function. When the power supply is turned off, the video tape recorder performs the video tape playback function as it is, even if the power off operation of the television is performed. Is brought about.

Accordingly, the present invention has been made in view of the above-described circumstances, and when the power of the television is turned off during video playback of the video tape by the playback function from the video tape recorder through the television, the video tape recorder side is also linked to the video. It is an object of the present invention to provide a function mode interlocking control device that executes a still mode of a tape and can turn off the power after a predetermined time has elapsed.

In order to achieve the above object, according to the functional mode interlocking control device according to the present invention, the broadcast signal of the channel tuned by the tuner is amplified by the intermediate frequency through the image IF unit and processed by the image signal processing unit to reproduce the image signal. The head drum is rotated together with the video tape by rotating the video tape from the AV input section by the AV board switching of the mode switch section and the tape driving mechanism by the servo control of the servo driver section. A video tape recorder for reading video recording information so that a video signal according to a result of a reproduction processing of a reproduction processing means is supplied to an AV input portion of the television through a reproduction signal output portion. The television performs a function setting unit for setting a key for a power-off function in the AV mode, a power-off control at the time of setting the power-off of the function setting unit, and performs interlocking control according to the interlock detection result for the function mode. A microcomputer, a power circuit unit which cuts off the power by turning off a power switch under the control of the microcomputer, a detection unit performing interlock detection by detecting an external video signal from the AV input unit and a power switching state of the power circuit unit; And a control output section for outputting control data for interlocking control from the microcomputer to the video tape recorder side, wherein the video tape recorder comprises: a video tape recorder; A control input unit for receiving control data for interlocking control from the control output unit of the television, a timer for time-keeping through the generation of a time clock, and the servo drive unit as a result of receiving the control data for the interlocking control. A control unit for controlling the transition to the mode and controlling to turn off the power when a predetermined time elapses by the timer's time, and to turn off the power by turning off the power switch under the power-off control of the control unit. It provides a function mode interlock control device equipped with a power supply circuit unit for.

Preferably, in the present invention, an inverter for inverting a power level signal according to operation of a power switch of the power circuit part of the detection unit of the television, and an image level having a signal level required for an external video signal from the AV input unit. The comparator converts the signal into a signal and outputs the resultant signal, and an AND gate receiving the inverted power level signal and the image level signal and performing an AND operation to generate an interlocking detection signal.

More preferably, in the present invention, the microcomputer of the television generates control data for immediately turning off the power of the video tape recorder when the interlocking detection signal for the interlocking control of the function mode is not generated from the detection unit. It is characterized by.

According to the present invention configured as described above, while the AV terminals of the television and the video tape recorder are wired, respectively, the power is turned off during video / audio playback of the recorded information played on the video tape by executing the AV mode on the television. When the video tape recorder side receives the control data for the interlocking control of the function mode from the television side, the still function is performed on the video tape. To make it possible.

Hereinafter, the present invention configured as described above will be described in detail with reference to the accompanying drawings.

1 is a block diagram showing the configuration of a television and a video tape recorder to which the function mode interlocking control apparatus according to the present invention is applied. In the apparatus of the present invention, reference numeral 100 denotes a television broadcast transmitted from a broadcasting station in a television mode. A television for reproducing and reproducing a signal, as well as for reproducing and outputting a reproduced video / audio signal from the video tape recorder 200 described later by executing the AV mode.

In the television 100, reference numeral 2 denotes a tutor for tuning the channel by receiving channel tuning data VT from the microcomputer 14, which will be described later, and 4 denotes a tutor for the television broadcasting of the tuned channel. An image IF section which intermediate-amplifies an image signal is shown.

Reference numeral 6 denotes an AV input unit which receives an external video signal from the video tape 22 reproduced by the subsequent video tape recorder 200, and 8 denotes a television by controlling the playback mode of the microcomputer 14 described later. 10 shows a mode switch section for performing mode switching to the mode or the AV mode, and 10 denotes a video signal for reproducing and outputting a video signal from a television broadcast or the video tape 22 through the mode switch section 8. The processing part is shown.

Further, reference numeral 12 is a function setting section for performing key setting for switching on / off of a power supply and switching of a playback mode, comprising a matrix button section provided in a predetermined portion of a remote controller for remote control or a main body. 12 includes a power supply key 12A for keying on / off of the operating power supply.

Reference numeral 14 controls the mode switching state of the mode switch unit 8 in accordance with the regeneration mode setting by the function setting unit 12, and at the time of setting the power-off by the function setting unit 12. The microcomputer generates a control data for the function mode interlocking control for the video tape recorder 200 to be described later according to the interlocking detection result of the function mode by the detecting unit 18 described later. .

Here, when the microcomputer 14 does not generate the interlocking detection signal for the function mode interlocking control device from the detecting unit 18 to be described later, the microcomputer 14 generates control data for immediately turning off the power of the videotape recorder 200 to be described later. Done.

Reference numeral 16 denotes an AC power source supplied from an AC power source, converted to a DC power source, supplied to each operation circuit terminal, and the power switch 16A is turned on / off by the power control of the microcomputer 14. And a power supply circuit section for supplying or interrupting supply of operating power.

Reference numeral 18 denotes a function mode for receiving an external video signal by reproduction of the video tape 22 from the AV input unit 6 and a power signal according to the operation of the power switch 16A of the power supply circuit unit 16. A detection unit for detecting the interlocking of the inverter, the detection unit 18 is connected to the output terminal side of the power switch (16A) as shown in FIG. 2, the inverter 44 for level inverting the power level signal according to the power switching result ) And the external video signal of the AV input unit 6 are inputted through the inverting terminal (-) and compared with the reference signals divided by the resistors R3 and R4 through the non-inverting terminal (+). A comparator 46 for converting to the required potential level, and an AND gate 48 for receiving the inverted power level signal and the level-converted image level signal and performing an AND operation to generate an interlocking detection signal. .

Reference numeral 20 denotes a control output unit for outputting control data for interlocking control of the function mode from the microcomputer 14.

In FIG. 1, reference numeral 200 denotes a video tape recorder which plays the video tape 22 by employing the television 100 as a reproduction output device for recording information reproduced on the video tape 22. As shown in FIG. .

In the videotape recorder 200, reference numeral 24 denotes a head drum which is rotated to read recording information from the videotape 22 with a reading part 24A made up of Bokgood's magnetic head.

Reference numeral 26 denotes a servo driver which controls the execution of the still mode for driving the video tape 22, reading the recorded information, and pausing the recorded video under the control of the controller 40, which will be described later. The servo motor 26 controls the drum tape 28A and the reel motor 28B to read the recorded information and perform the still function by driving the video tape 22 and rotating the head drum 24. And a tape drive mechanism with capstan motor 28C.

Further, reference numeral 30 denotes a reproduction signal amplifier for amplifying an RF signal of recorded information read out through the reading unit 24A of the head drum 24, and 32 denotes a signal demodulated to reproduce the amplified video signal. A reproduction signal processing section for signal processing is shown.

Reference numeral 34 denotes a playback signal output section for outputting the video signal processed by the playback signal to the AV input section 6 side of the television.

Reference numeral 36 denotes a control input unit for receiving control data for interlocking control through the control output unit 20 of the television 100, and 38 denotes a clock pulse generated through an oscillation clock generating means such as a crystal oscillator. Represents a timer that shows the time through.

In addition, reference numeral 40 is a control unit for controlling the overall functional operation of the video tape recorder 200, the control unit 40 receives the control data for the interlocking control via the control input unit 36, the servo drive unit 26 ), The still mode for the videotape 22 is executed, and the power is turned off if the corresponding state is maintained for a predetermined time such as 10 minutes as indicated by the timer 38.

Here, the control unit 40 immediately turns off the operating power when receiving control data for requesting the immediate power off through the control input unit 36.

In addition, reference numeral 42 denotes an AC power supplied from an AC power supply terminal, converted to a DC power supply, supplied to each operation circuit terminal, and the power switch 42A is turned on / off by power control of the control unit 40. And a power supply circuit section for supplying or interrupting supply of operating power.

Next, the operation of the present invention made as described above will be described in detail with reference to the flowchart of FIG. 3.

First, in the state where the AV mode is set by the function setting unit 12 in step 50 and the mode switch unit 8 is in mode switching operation, the tape drive is driven by the servo drive unit 26 in the video tape recorder 200 under servo control. When the video tape 22 is driven by driving the mechanism 28 and the head drum 24 having the reading unit 24A is rotated, and the video signal recorded on the video tape 22 is read, the playback signal amplifying unit is read. The video signal amplified by the signal 30 and processed by the playback signal processor 32 is processed by the video signal processor 10 through the playback signal processor 34 and the AV input N N of the television 100. The video signal is processed and reproduced.

In that state, the microcomputer 14 proceeds to step 51 and determines whether the power key 12A of the function setting unit 12 is being operated for turning off the operating power.

As a result of the determination in step 51, when it is determined that the power key 12A of the function setting unit 12 is being operated, the control proceeds to step 52, whereby the power switch 16A of the power supply circuit unit 16 is switched off. The supply of operating power is cut off.

Accordingly, in step 53, the inverter 44 of the detection unit 18 level inverts the low level power level signal from the output side of the power switch 16A, and the comparator 46 causes the AV input unit 6 to be inverted. By comparing the external video signal from the video tape 22 from the reference signal with the reference signal and converting it into a video level signal of the required potential level, the AND gate 48 converts the power level source and the high level inverted into the high level. The video level signal of the level is ANDed to generate a high level interlocking detection signal.

However, if the external video signal is not input from the AV input unit 6 while the reproduction of the video tape 22 ends, the detection unit 18 does not generate the interlocking detection signal.

Then, the flow advances to step 54, and the detection unit 18 determines whether or not the high level interlocking detection signal according to the interlocking detection result of the function mode is input.

As a result of the determination in step 54, when it is determined that the high level interlocked detection signal is not input from the detection unit 18, the control proceeds to step 58 to supply power to the video tape recorder 200 through the control output unit 20. As control data is generated to request the controller to immediately turn off, the control unit 40 of the video tape recorder 200 recognizes the control data and turns off the power switch 42A of the power circuit unit 42 to supply power. Will be blocked.

However, when it is determined in step 54 that the microcomputer 14 determines that a high level interlocking detection signal is input from the detection unit 18, the control proceeds to step 55 to generate control data for interlocking control. The controller 40 controls the servo driver 26 for still reproduction of the video tape 22 as a result of receiving the control data.

In that state, the flow advances to step 56 to determine whether or not still playback continues while the time counted by the timer 38 has elapsed to a predetermined time such as 10 minutes after the still playback is started.

As a result of the determination in step 56, if it is determined by the timer 38 that the still regeneration state is maintained for a predetermined time elapses, the control proceeds to step 57 so that the operating power is turned off.

According to the above-described present invention, if the operation power is turned off when the recorded information of the videotape is reproduced by executing the AV mode of the television, the videotapecoder power is supplied after a predetermined time while the videotape is intermittently reproduced. By being able to be turned off completely, it is possible to perform the interlocking function control and to prevent the performance of unnecessary functions in advance, and also has the advantage that power consumption is prevented.

Claims (3)

The broadcast signal of the channel tuned by the tuner 2 is amplified by the intermediate frequency through the image IF unit 4 and processed by the image signal processing unit 10 to reproduce the image signal, and the AV of the mode switch unit 8 is reproduced. The video tape 22 is driven by the television 100 which reproduces and processes the external video signal from the AV input unit 6 by mode switching and the tape driving mechanism 28 by the servo control of the servo driver 26. As the head drum 24 is rotated and the recorded information of the video tape 22 is read along with the driving of the video signal, the video signal corresponding to the result of the reproduction processing of the reproduction processing means 30 and 32 is reproduced. A video tape recorder (200) adapted to be supplied to an AV input (6) of the television (100) via the television (100); The function setting unit 12, which performs key setting for the power-off function in the AV mode, performs power-off control when the power-off setting is performed with the function setting unit 12, and the interlock detection result for the function mode is displayed. The external video signal from the microcomputer 14 performing interlocking control, the power supply circuit unit 16 which cuts off the power by turning off the power switch 16A under the power off control of the microcomputer 14, and the AV input unit 6; And a detection unit 18 which performs interlocking detection by detecting a power switching state of the power supply circuit unit 16, and outputs control data for interlocking control from the microcomputer 14 to the video tape recorder 200 side. And a control output unit 20, the video tape recorder 200; The control input unit 6 for receiving control data for interlocking control from the control output unit 20 of the television 100, a timer 38 for timekeeping time through the generation of a clock clock, and the interlocking control. As a result of receiving the control data for the servo drive unit 26 to control the transition to the still mode, and to control to turn off the power when a predetermined time elapsed by the timer 38 time. And a power supply circuit section (42) for turning off the power switch (42A) under the power-off control of the control section (40) to cut off the power supply. The inverter unit (4) of claim 1, wherein the detector (18) of the television (100) includes an inverter (44) for inverting the power level signal resulting from the operation of the power switch (16A) of the power circuit unit (16), and the AV input unit ( A comparator 46 for converting and outputting an external video signal from 6) into an image level signal having a required signal level, and receiving and performing an AND operation on the inverted power level signal and the image level signal to generate an interlocked detection signal. Functional mode interlocking control device, characterized in that it comprises a generating end gate (48). According to claim 1, When the microcomputer 14 of the television 100 is not generated from the detection unit 18, the interlocking detection signal for the function mode interlocking control device, the power of the video tape recorder 200 immediately A function mode interlock control device, characterized in that to generate the control data to turn off.