JPH052487U - Dual deck video tape device with PIP function - Google Patents

Abstract

(57) [Summary] [Purpose] The signals recorded or reproduced by two decks are recorded.
The present invention intends to provide a video tape device which can simultaneously display by utilizing the IP function. [Structure] A first deck in which the first and second decks are provided as one unit, and a video signal input through a multi-channel signal input source or a reproduction signal of the second deck is selected and recorded, and a multi-channel The main screen and the sub screen are selected in the PIP processing unit by switching the control switch of the recording or reproducing signal of the second deck for selecting and recording either the video signal flowing in through the signal input source or the reproducing signal of the first deck. It is configured to flow in as a screen signal. [Effect] This device can simultaneously display the signals recorded or reproduced on each deck.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

  The present invention is a dual deck video tape device having a PIP function in video equipment. Recording of two units, especially in a dual deck videotape recorder And the signals recorded or reproduced by the reproducing device can be displayed simultaneously by using the PIP function. Circuit.

[0002]

[Prior art]

  A video tape duplicator, commonly called a dubbing device, uses one of the video tapes. This is for copying the information recorded in the recording medium to another recording medium. Such a copying machine The most commonly used as two videotape recording and playback devices Two recording and reproducing devices (hereinafter referred to as dual decks) that are connected and used. A dual deck video tape recorder (hereinafter Abbreviated as VTR).

[0003]   The conventional dual-deck VTR uses two decks, and each deck stores video information. The recording system for recording on the video tape and the playback for reproducing the video information recorded on the video tape. Formed in a living system. One of the decks of such a double deck VTR is The video information is played back, and the other decks are recorded by the recording system. Decks record or play in different formats, or Performs functions such as recording broadcast signals at the same time and records or reproduces them through a display device. Configured to display the signal that is to be displayed.

[0004]   An apparatus having the above-mentioned structure is disclosed in U.S. Pat. No. 4,768,110. Has been. The device disclosed in US Pat. No. 4,768,110 is Two decks record the video signals input from the multi-channel signal input source on an empty tape. Even while recording, other decks can monitor the signal already recorded on the tape. I was able to output through. However, the signals recorded or reproduced by each of the above decks In order for the viewer to know, the selection switch that switches the recording and playback signal output end of each deck.                                                          There was a troublesome problem that had to be selected and confirmed by each switch.

[0005]

[Problems to be solved by the device]

  In order to overcome the above-mentioned problems, the purpose of the present invention is to combine two decks into one unit. In the video tape device, the signals recorded or reproduced by the two decks are An object is to provide a device that can display at the same time by using the PIP function.

[0006]

[Means for Solving the Problems]

  In order to achieve the above-mentioned object, the present invention records and reproduces an input video signal. In a video tape device in which the first and second decks are   Tuner for tuning the broadcast signal input through the antenna to the proper channel. From the video camera, the terminal for inputting the video signal through the video line Input means including a terminal for inputting a video signal,   The video signal transmitted to the multi-channel of the input means and the reproduction signal of the second deck First input selecting means for selecting any one of the numbers and inputting to the first deck ,   The video signal transmitted to the multi-channel of the input means and the reproduction signal of the first deck Second input selecting means for selecting one of the issues and inputting it to the second deck,   A first for switching a recording or reproducing signal in each of the first deck and the second deck And second switching means,   The signal switched by one of the first and second switching means is used as a main screen image. Signal, and the signal switched by the other flows into the sub-screen video signal After compressing the video signal for the screen, it is displayed on the main screen and sub screen of the display means respectively. PIP means for doing   The main screen and the sub-picture of the PIP means are controlled by controlling the switching of the first and second switching means. The PIP means for controlling the conversion of the signal source on the surface and recognizing the key data of the key input means. It is characterized by including a system control means for controlling the drive of the.

[0007]

[Action]

  The video tape device according to the present invention is capable of recording signals recorded or reproduced by two decks. It can be displayed simultaneously by using the IP signal.

[0008]

【Example】

  Hereinafter, referring to the attached drawings, a dual deck bidet having a PIP function according to the present invention will be described. A preferred embodiment for an otape device will be described.   FIG. 1 shows the implementation of a dual deck video tape device having a PIP function according to the present invention. It is an example circuit diagram.

[0009]   According to FIG. 1, the input terminal of the RF division unit 10 is the antenna ANT and the first output terminal is The second output terminal is the tuner 2 to the external terminal 11 to which the RF signal of the TV receiver is input. 0 is connected to each input terminal.   The first selection terminal A1 of the first input selection switch S1 is an output terminal of the tuner 20, The second selection terminal B1 is an isolation amplifier A connected to the video line input / output terminals 1 and 2. The output terminal of MP1 and the third selection terminal C1 is a video camera (called a camcorder). The fourth selection terminal D1 is connected to the camcorder signal input terminal 3 for inputting the processed video signal. Are respectively connected to the output terminals of the second deck 40, and the first input selection switch S1 The fixed terminal is connected to the input terminal of the first deck 30.

[0010]   The first selection terminal A2 of the second input selection switch S2 is an output terminal of the tuner 20. The second selection terminal B2 is the output terminal of the isolation amplifier AMP1, and the third selection terminal C is 2 is the camcorder signal input terminal 3, and the fourth selection terminal D2 is the output terminal of the first deck 30. The fixed terminals are connected to the input terminals of the second deck 40, respectively.   The first selection terminal A3 of the output selection switch S3 is the output terminal of the tuner 20, The second selection terminal B3 is the output terminal of the isolation amplifier AMP1, and the third selection terminal C3 is The camcorder signal input terminal 3 and the fourth and fifth selection terminals D3 and E3 are the first deck 3 0 input / output terminal, and the sixth and seventh selection terminals F3, G3 are input / output terminals of the second deck 40. The output terminals are connected to the output terminals, and the output terminals are connected to the input terminals of the RF modulator 70. It

[0011]   The fixed contact of the first control switch SW1 is the main screen input terminal of the PIP processing unit 60. 61, the first selection contact a1 is connected to the input terminal of the first deck 30, The second selection contact b1 is connected to the output terminal of the first deck 30.   The fixed setting of the second control switch SW2 is performed by the sub-screen input terminal of the PIP processing unit 60. 62, the first selection contact a2 is connected to the input terminal of the second deck 40, The selection contact b2 is connected to the output terminal of the second deck 40.

[0012]   The system control unit 50 has a terminal 5 into which the key data transmitted from the key input means flows. 1 and the first and second control ports CP1 and CP2 are connected to the first and second control ports. The third control port CP3 is connected to the control contacts of the switches SW1 and SW2 by the PIP processing unit 60. The fourth control port CP4 is connected to the control signal input terminal of the main screen / sub screen of the PIP processing unit 60. Each is connected to the screen selection control signal input terminal.

[0013]   The first input terminal of the display device 80 is connected to the output terminal of the RF modulator 70, and the second input terminal The output terminal is connected to the output terminal of the PIP processing unit 60. Input terminal of the second amplifier AMP2 The child is an output terminal of the PIP processing unit 60, and the output terminal is an input terminal of the RF modulator 70. Respectively connected to.   Next, the operation of the apparatus shown in FIG. 1 will be described in detail.

[0014]   The RF division unit 10 includes channels 2 to 8 which are introduced through the antenna ANT. The VHF / UHF signal placed on 3 is displayed on the tuner 20 and the monitor of the TV receiver. To transmit.   In the tuner 20, the system control unit that recognizes the key data of the key input means Under the control of 50, the first and the first channel are selected for the video signal corresponding to the channel requested by the viewer. The two input selection switches S1 and S2 and the first input terminals A1 to S3 of the output selection switch S3 Supply to A3.

[0015]   Video signals input from video line input / output terminals 1 and 2 are isolated amplifier AMP 1 through the first and second input selection switches S1 and S2 and the output selection switch S3. It is supplied to the second input terminals B1 to B3. Inflow from the camcorder signal input terminal 3 Video signal processed by a camcorder (not shown)                                                          It is supplied to S1 and S2 and the third input terminals C1 to C3 of the output selection switch S3.   The reproduction signal of the second deck 40 is connected to the fourth input terminal D1 of the first input selection switch S1. Is supplied to the fourth input terminal D3 of the second input selection switch S2 and the first deck 30 Is reproduced. Therefore, the first deck 30 has the first input selection switch S1. Output from the TV tuner 20 connected to the first selection terminal A1 of the Gram, a video input connected to the second selection terminal B1, and a video input connected to the third selection terminal C1. The input signal of the camera, and the reproduction signal of the second deck 40 connected to the fourth selection terminal D1. Record either one.

[0016]   The second deck 40 is connected to the first selection terminal A2 of the second input selection switch S2. The TV program output through the TV tuner 20 is connected to the second selection terminal B2. Video input, camera input connected to third selection terminal C2, fourth selection terminal D Any one of the reproduction signals of the first deck 30 connected to the 2 is recorded.   On the other hand, the user wants to see the signals recorded on the first and second decks 30 and 40. When an IP (picture-in-picture) function is desired, the first of the system control unit 50 And control signals output from the second control ports CP1 and CP2, that is, "low" theory The first and second control switches SW1 and SW2 by the logical signal. The signal recorded on the first and second decks 30 and 40 is short-circuited to a2 and the PIP processing is performed. It is supplied to the processing unit 60. Keys such as those attached to the remote control or VTR here A PIP on / off key and a main screen / sub screen conversion key are attached to the input means.

[0017]   In the PIP processing unit 60, the third control port of the system control unit 50 is pressed by key input. And a signal for controlling ON / OFF of the PIP processing unit 60 output from the CP3 and the fourth Control signal for switching main screen / sub screen signal input source output from control port CP4 The video signal switched by the first control switch SW1 by the controller, that is, the first deck The signal recorded in 30 is accepted as the main screen signal, and the second control switch SW2 is used. The video signal switched over, that is, the signal recorded in the second deck 40 is used as the sub-screen signal. accept.

[0018]   The signal processed by the PIP processing unit 60 is directly transmitted to the display device 80, and the signal shown in FIG. As shown in A), the signal recorded by the first deck 30 is displayed on the main screen and the second deck. The signal recorded at 40 is compressed and displayed on the sub-screen, or the second amplifier AMP2 The RF modulator 70 displays the high-frequency signal RF on the display device 80. Becomes

[0019]   In addition, as shown in FIG. 2B, the user may use the first and second decks 30, 40. If the PIP function is desired in order to see the signal reproduced by the system control unit 5, Control signals output from the first and second control ports CP1 and CP2 of 0, that is, " The "high" logic signal is used to connect the first and second control switches SW1 and SW2 to the second selection connection. The signals reproduced on the first and second decks 30 and 40 are short-circuited to the points b1 and b2, It is supplied to the P processing unit 60.

[0020]   The signals recorded on the first deck 30 and the second deck as shown in FIG. If the PIP function is desired in order to see the signal reproduced at 40, the system control unit 50 The signals output from the first and second control ports CP1 and CP2, that is, "low" and And the "high" logic signal causes the first control switch SW1 to move to the second selection contact a1. The second control switch SW2 is short-circuited to the second selection contact b2, The recording signal of 30 and the reproduction signal of the second deck 40 are supplied to the PIP processing unit 60. It

[0021]   As shown in FIG. 2D, the signal reproduced by the first deck 30 is If you want the PIP function to see the recorded signals on the deck 40, system control The signals output from the first and second control ports CP1 and CP2 of the unit 50, that is, " The first control switch SW1 receives the second selection contact b according to the "high" and "low" logic signals. 1, the second control switch SW2 is short-circuited to the first selection contact a2 The reproduction signal of 30 and the recording signal of the second deck 40 are supplied to the PIP processing unit 60.

In the display device 80, the signal switched by the first control switch SW1 is displayed on the main screen and the signal switched by the second control switch SW2 is displayed on the sub screen through the PIP processing unit 60. At this time, by operating the main screen / sub screen conversion key mounted on the key input means, the main screen signal input source and the sub screen signal input source can be switched, and an OSD (character generator) is added to the PIP processing unit 60. By inserting characters such as VCR _-1 , VCR _{-2 on} the screen and the sub-screen, the user can easily know the video input source of the main screen and the sub-screen. By converting the video signal of the main screen / sub screen, the audio signal is also converted.

[0023]   The RF modulator 70 controls the output selection switch S3 under the control of the system controller 50. 1 TV program output through the TV tuner 20 connected to the selection terminal A3 Video input connected to the second pioneer terminal B3, connected to the third selection terminal C3 Camera input, input of first deck 30 connected to fourth selection terminal D3, fifth selection end Output of the first deck 30 connected to the child E3, second output connected to the sixth selection terminal F3 Of the input of the deck 40 and the output of the second deck 40 connected to the seventh selection terminal G3 A display device 8 such as a monitor of a TV receiver, which is converted into one selected high frequency signal. Display at 0.

[0024]   The RF modulator 70 outputs the output signal of the PIP processor 60 to the second amplifier AM. It flows in through P2, is converted into a high frequency signal, and is displayed on the display device 80. In addition, If the user has not decided the PIP function mode, use the output selection switch S3 Is a first input terminal A3 for inputting the output signal of the tuner 20 and an isolation amplifier AMP1. Processed from the second input terminal B3, which inputs the signal transmitted to the line, from the camcorder The third input terminal C3 for inputting the selected video signal and the first input selection switch S1 The fourth input terminal D3 for inputting the signal recorded in the first deck 30 and the first deck 3 The fifth input terminal E3 for inputting the reproduction signal of 0 and the second input selection switch S2 are switched. A sixth input terminal F3 for inputting a signal recorded in the second deck 40, the second deck 40 Of the seventh input terminal G3 for inputting the reproduction signal of A signal output by short-circuiting one input terminal is displayed on the RF modulator 70. It is displayed on the screen 80.

[0025]

[Effect of device]

  The dual deck video tape device with PIP function according to the present invention is a dual device. In the VCR VTR, the video signals input through the multi-channel signal input source The signals recorded or reproduced on each deck are switched by the control switch to enable the PIP function. There is an advantage in that the main screen and the sub screen can be simultaneously displayed on the display device by using. Moreover, this consideration The plan is to record the main screen and the sub screen displayed on the display device with the recording or reproducing signal of each deck. And can be switched arbitrarily. Also, the present invention is a color video player with dual decks. It can also be applied to linters.

[Brief description of drawings]

FIG. 1 is a block diagram of an embodiment of a dual deck video tape device having a PIP function according to the present invention.

2A to 2D are diagrams for explaining screen states displayed on a display device.

[Explanation of symbols]

10 RF divider 20 tuner 30,40 First and second decks 50 System control unit 60 PIP processing unit 70 RF modulator 80 display S1, S2 First and second input selection switches S3 output selection switch SW1, SW2 First and second control switches AMP1, AMP2 First and second amplifier

Claims (4)

[Scope of utility model registration request] 1. A video tape apparatus having a first and a second deck as one unit for recording and reproducing an incoming video signal, through a tuner and a video line for tuning a broadcasting signal input through an antenna to an appropriate channel. An input means including a terminal for inflowing a video signal and a terminal for inflowing a video signal from a video camera;
A first input selecting means for selecting one of a video signal transmitted to the multi-channel of the input means and a reproduction signal of the second deck and inputting it to the first deck; Second input selection means for selecting one of the video signal and the reproduction signal of the first deck and inputting it to the second deck, and the first input / output switching means for switching the recording or reproduction signal between the first deck and the second deck. And the second switching means, and the signal switched by the first and second switching means flows into the main screen video signal, and the signal switched by the first or second switching means becomes the sub screen video signal. After the inflowing sub-screen video signal is compressed, the PIP means for displaying respectively on the main screen and the sub-screen of the display means and the switching of the first and second switching means are controlled, and the main screen of the PIP means and Sub screen PI, characterized in that it comprises a system control means for controlling the conversion of the signal input source, for controlling the operation of the PIP unit recognizes the key data of the key input means
Dual deck videotape device with P function. 2. The PI according to claim 1, wherein the first and second switching means are composed of control switches.
Dual deck videotape device with P function. 3. Output selection for selecting one of a video signal transmitted to multiple channels of the input means, a recording or reproducing signal of the first deck, and a recording or reproducing signal of the second deck. 2. A dual deck video tape having a PIP function according to claim 1, further comprising means and RF modulating means for modulating a signal selected by the output selecting means into a high frequency signal and outputting the high frequency signal to the display means. apparatus. 4. The PIP function according to claim 2, wherein the main screen signal and the sub screen signal output from the PIP processing unit are output to the RF modulation unit and displayed on the display unit. Dual deck videotape device.