KR0147647B1 - OSD changer for double deck video tape recorder and CD / OK system integrated double / wide television receiver - Google Patents

Abstract

An OSD switching device is disclosed in a double deck video tape recorder and a CD / OK system integrated double / wide television receiver.

In the double deck video tape recorder and the CD / OK system integrated double / wide television receiver according to the present invention, the OSD switching unit combines the double deck video tape recorder and the CD-OK system unit with the double / wide television receiver and controls them collectively. By implementing the A / V system that can meet the various needs of the user has the effect of improving the added value of the product.

Description

OSD changer for double deck video tape recorder and CD / OK system integrated double / wide television receiver

1 is a block diagram showing the configuration of a double deck video tape recorder CD-OK system unit integrated double / wide television receiver according to the present invention.

FIG. 2 is a block diagram showing the detailed configuration of the audio / video signal selection unit shown in FIG.

3 is a block diagram showing another configuration of the audio / video signal selection unit shown in FIG.

4 is a block diagram showing a detailed configuration of the double / wide processing unit shown in FIG.

FIG. 5 is a diagram for conceptually showing the operation of the apparatus shown in FIG.

6 is a block diagram for explaining OSD switching in a double deck video tape recorder and a double / wide television receiver integrated with a CD-OK system unit.

The present invention relates to an OSD switching device in a double / wide television receiver having a double deck video tape recorder and a CD-OK system.

The double-deck video tape recorder has a structure in which two video tape recorders are integrated, and each video tape recorder can be reproduced separately. In particular, a signal played by one video tape recorder is recorded on the other video tape recorder. It has the advantage that it can perform the so-called copy function.

On the other hand, a double / wide television receiver is capable of displaying a video signal on a wide screen having an aspect ratio of 16: 9, and simultaneously splitting a wide screen from side to side to simultaneously display two video signals from different signal sources. As a television receiver of a display system, the video signal reproduced from an external video playback apparatus such as a video tape recorder or a laser disk player or a CD-OK can be simultaneously viewed.

When the separate video cassette recorder and CD-OK system are electrically connected to each other via a double / wide TV and a cable, the video signal received from the television receiver and the video signal played by the double deck video tape recorder can be simultaneously viewed. Recording the received video signal on the videotape at the same time, or simultaneously watching the signal reproduced from one videotape while recording on the other videotape, or watching the signal reproduced from the video cassette recorder. At the same time, it is easy to assume that various operations such as listening to music or singing songs are possible while watching the background video signal of the CD-OK system unit.

However, in the case where the video signal received from the television receiver is to be recorded through the video tape recorder, first, the external output terminal of the television receiver and the external input terminal of the video tape recorder are connected by cable, and the television receiver is operated to record. Select a channel to receive the video signal, and operate the video tape recorder to perform the recording mode.

On the contrary, when a video signal reproduced by a video tape recorder is to be viewed through a TV receiver, first, the external output terminal of the video tape recorder and the external input terminal of the television receiver are connected or the RF output terminal of the video tape recorder and the television receiver are connected. The antenna input terminal must be connected, the video tape recorder can be operated in the playback mode, and the television receiver can be operated in the external video signal reception mode or the channel 3/4 must be tuned.

In addition, when a video screen of the CD-OK system unit is to be reproduced through a double / wide television receiver, the external output terminal of the CD-OK system unit and the external input terminal of the television receiver must be connected.

Since the external I / O terminals of video devices are usually installed on the back of the body, in order to provide some electrical connection between them, it is necessary to take them out of the place where they are installed or to work on the back of the place where they are installed. It's no easy task for me.

Even if there is some electrical connection between them, it is impossible to expect desirable results if the individual devices are not operated in the proper order according to the wishes. It requires skill.

In particular, in order to perform a variety of operations by electrically connecting a double / wide television receiver and a double-deck video tape recorder capable of processing two video signals simultaneously, a general television receiver and a video tape recorder may be used. More cables and highly skilled operation are required.

Therefore, the applicant of the present invention not only avoids the optimization of the installation space by integrating the double deck video cassette recorder and the CD-OK system unit into the single / double type television receiver in one body in order to solve such problems. We have developed a double-deck video cassette recorder and an integrated double / wide television receiver with a CD-OK system that can easily manipulate and process a variety of complex operations that can be derived by connecting each device via a cable.

An object of the present invention is to provide a switching device for OSD (ONSCREEN DISPLAY) in each video cassette recorder of a television receiver having a structure integrated with a double deck video tape recorder, a CD-OK system unit and a television receiver.

The double deck video cassette recorder and CD-OK system integrated double / wide television receiver developed by the applicant of the present invention,

At least two tuners for demodulating the broadcast signal propagated by the broadcasting station to provide the composite video signal, and dependently connected to the tuners, and at least two demodulations for demodulating the audio / video signal from the composite video signal generated from each tuner. A television signal receiver having a unit;

At least two video tape recorders are provided to provide video signals reproduced simultaneously or separately at each video tape recorder, or audio / video signals provided thereto are recorded simultaneously or separately through respective video tape recorders, or one video A double deck video tape recorder for recording a video signal reproduced by the tape recorder through the other video tape recorder;

A CD-OK system unit which provides a background image and sings or listens to music in accordance with the accompaniment of sound;

Left and right picture video signal, left and right picture audio signal, first audio / video signal, second audio / video signal, and third audio by selectively switching a plurality of video / audio signals provided from a television signal receiver and a double-deck video tape recorder. An audio / video signal selector for providing a video signal;

A video signal processing unit which inputs the left and right screen video signals output from the audio / video signal selection unit and performs double / wide processing, and provides the processed video signal to a driving unit which drives the display device;

An audio signal processor that surrounds the left and right screen audio signals output from the audio / video signal selector and surrounds them, and provides the processed audio signal to the left and right speakers;

A television receiver control unit controlling a television signal receiver, a video signal processor, and an audio signal processor;

A double deck video recorder control unit controlling a double deck video tape recorder; And

And a master control unit for controlling the television receiver control unit and the double-deck video tape recorder control unit in response to a control command introduced through the key input unit or the remote control unit.

In the double deck video tape recorder and the CD-OK system integrated double / wide television receiver according to the present invention,

An A / V switching section for selecting RGB signals of the first video tape recorder and the second video tape recorder or RGB signals of the CD-OK system unit according to a predetermined control signal;

An OSD driver which overlaps the RGB signal output from the A / V switching unit and the OSD signal generated from the master microprocessor according to a predetermined control signal;

A television microprocessor that superimposes the RGB signal of the television receiver and the OSD signal in accordance with the OSD control signal and controls the output of the signal;

An OSD switching unit for switching the output signal of the OSD driver and the output signal of the television microprocessor in accordance with a predetermined control signal;

A color signal processor for color signal processing the OSD signal output from the OSD switcher and the RGB signal;

A CRT driver for driving the CRT according to an OSD signal output from the color signal processor and an RGB signal superimposed; And

And a master microprocessor for generating text signals for the user interface, OSD control signals, and predetermined control signals for controlling the overall signal processing of the system.

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

1 is a block diagram showing a schematic configuration of a double deck video tape recorder and a CD / OK system unit integrated double / wide television receiver according to the present invention.

The apparatus shown in FIG. 1 includes an antenna 10, a television signal receiver 12, an audio / video signal selector 14, a video signal processor 16, a CRT driver 18, a CRT 20, and an audio signal. A processing unit 22, left and right speakers 24 and 26, a double deck video tape recorder 28, and a CD-OK system unit 29.

A television receiver control unit 30, a double deck video tape recorder control unit 32, and a master control unit 34 are provided.

The television signal receiver 12 receives the first and second tuners 120 and 122 and the first and second tuners, which receive a broadcast signal modulated by a carrier wave introduced through the antenna 10 to generate an intermediate frequency processed video signal. First and second demodulators 124 and 126 for generating a predetermined audio / video signal AV1 and AV2 by introducing an intermediate frequency processed video signal generated by the second tuners 120 and 122; do.

The video signal processor 16 receives the first and second comb filters 160 and 162 and the first and second comb filters 160 and 162 which respectively input the left and right screen video signals and separate them into luminance / chromatic signals. The first luminance / chromatic signal and the second luminance / chromatic signal output from the double / wide processing unit 164 and the double / wide processing unit 164 outputting the second luminance / chromatic signal as a third luminance / chromatic signal. And a matrix unit 166 for generating an RGB signal by integrating the output third luminance / chromatic signal.

The double-deck video tape recorder 28 generates the third and fourth audio / video signals or injects the fifth and sixth audio / video signals output from the audio / video signal selector 14 to the video tape. First and second video tape recorders 280 and 282 and a copy control unit 284 are recorded.

The double deck video tape recorder control unit 32 includes a second microprocessor 320, a second ROM 324, and a third microprocessor 322.

The television receiver control unit 30 includes a first microprocessor 300, a first ROM 302, an OSD 304, and an OSD selection unit 306. That is, in the first microprocessor 300 and the first microprocessor 300 that control the double / wide processor 164, the audio processor 22, and the first OSD 304 under the control of the master microprocessor 340. The first ROM 302, the first OSD 304, and the OSD selection unit 306 for selectively switching between the first OSD 304 and the master OSD 344 are listed.

The CD-OK system unit 29 generates the eighth audio / video signal AV8 and inputs it to the audio / video signal selector 14, and outputs the seventh audio / video signal selected from the audio / video signal selector 14. The CD-OK 292 operating by injecting the video signal AV7, the fourth microprocessor 294 controlling the CD-OK 292 under the control of the master microprocessor 340, and the fourth microprocessor 294. 4) includes a fourth ROM 296 containing a control program controlled by the "

The master controller 34 includes a fourth microprocessor 340, a third ROM 342, and a master OSD 344.

The operation of the apparatus shown in FIG. 1 will be described in detail. The television signal receiver 12 demodulates the broadcast signal introduced through the antenna 10 and outputs first and second audio / video signals AV1 and AV2. On the other hand, the double deck video tape recorder 28 outputs the third and fourth audio / video signals AV3 and AV4 reproduced by the respective video tape recorders 280 and 282.

The audio / video signals AV1, AV2, AV3, AV4, and AV8 output from the television signal receiver 12, the double deck video tape recorder 28, and the CD-OK system unit 29 are selected from the audio / video signal selector. 14 is provided.

The audio / video signal selection unit 14 selectively combines a plurality of audio / video signals AV1, AV2, AV3, AV4, and AV8 provided on the input side thereof to the left and right screen video signals, the left and right screen audio signals, and the fifth and the like. Output as a sixth audio / video signal.

FIG. 2 is a block diagram showing a more specific configuration of the audio / video signal selector 14 shown in FIG. The apparatus shown in FIG. 2 includes a video signal selector 140 and an audio signal selector 142.

The video signal selector 140 receives the first to fourth video signals and selectively combines them to output the left and right screen video signals, the fifth video signal, and the sixth video signal.

The pattern of the output video signals is determined by the video signal selection signal output from the television receiver control unit 30 and provided to the video signal selection unit 140.

The audio signal selector 142 injects the first to fourth audio signals, selectively combines them, and outputs the left and right screen audio signals, the fifth audio signal, and the sixth audio signal.

In order to provide the versatility of the device, it is possible to additionally allow an externally provided audio / video signal or to allow an externally generated audio / video signal to be externally output.

FIG. 3 is a block diagram showing another embodiment of the audio / video signal selector shown in FIG. The apparatus shown in FIG. 3 further includes extra audio / video signal input terminals, which may be provided for incoming audio / video signals. As will be appreciated, the combined output of the same number of output signals from more input signals has a greater number of cases, and therefore the number of bits of the audio / video selection signal should be increased.

The video signal processor 16 double / wide processes the left and right picture video signals provided from the audio / video signal selector 14 and outputs them. In order to display two video signals simultaneously on one screen, it is necessary to match the horizontal and vertical scanning periods of the combined video signal with the horizontal scanning period of each video signal before combining. Here, it is assumed that the horizontal and vertical scanning periods of the two video signals to be combined are the same. Special treatment is required when the horizontal and vertical scan periods are different. This technology has been applied to NTSC / PAL, HD / NTSC converters, and the like.

The combined video signal and the scan period are adjusted using the memory. For this purpose, the video signal is separated into luminance / color signals, digitally converted and recorded in the memory. By adjusting the read speed of the memory, the scanning period of the output image signal can be determined.

4 is a block diagram showing a more detailed configuration of the double / wide processing unit 164 shown in FIG. The apparatus shown in FIG. 4 includes first and second analog / digital converters 400 and 410, first and second frame memories 404 and 406, and first and second write address generators 408. FIG. 410, a read address generator 412, first and second digital / analog converters 414 and 416, left and right screen switching units 418, and a deflection unit 420.

The operation of the apparatus shown in FIG. 4 will be described in detail. The first and second recording address generators 408 and 410 generate recording addresses having recording speeds equal to the scanning speeds of the left and right picture video signals, respectively. The video signals digitally converted by the analog / digital converters 400 and 402 are recorded in the frame memories 404 and 406. At this time, the recording speeds in the frame memories 404 and 406 are the same as the scanning speeds of the left and right screen video signals, respectively.

The read address generator 412 generates a read address having a read speed corresponding to twice the scanning speed of the left video signal. Therefore, the read speeds in the frame memories 404 and 406 correspond to twice the scanning speeds of the left and right picture video signals, respectively.

The horizontal scanning period of the image signal is divided into two parts of the first half and the second half, and the first half reads the video signal recorded in the first frame memory 404, and the second half reads the video signal recorded in the second frame memory 406. When each video signal is read at twice the recorded speed, the two video signals are combined and output as one video signal.

5 conceptually illustrates write and read operations of the frame memories 404 and 406. As shown in FIG. As shown by the solid line in FIG. 5, each video signal is separately recorded in the frame memories 404 and 406, and the recording speed is equal to the scanning speed of each video signal. After the video signals are recorded in the two frame memories 404 and 406, they are sequentially read as shown by the dotted lines, but the reading speed is twice the recording speed.

As a result, the speed at which each video signal is recorded and the speed at which two recorded video signals are read successively become the same, and a video signal in which the two video signals are combined can be obtained.

The left and right screen switching unit 418 of FIG. 4 inverts the left and right screens on the screen by changing the switching order of the signals read out from the first and second frame memories 404 and 406.

The CRT driver 18 of FIG. 1 drives the CRT 20 by the RGB signal output from the video signal processor 16 to display an image signal.

The audio signal processor 22 provides left and right picture audio signals provided by the audio / video signal selector 14 to the left and right speakers 24 and 46 by performing surround, speaker / headphone selection processing, and the like. Here, the audio signal corresponding to the video signal of the left and right screens is output through the left and right speakers, or the audio signal corresponding to the video signal of the left screen is output to the left and right speakers, and the audio signal corresponding to the video signal of the right screen is output to the headphone output terminal. Selectable operation such as output is possible.

The double deck video tape recorder 28 provides the audio / video signal reproduced by the two video tape recorders 280 and 282 to the audio / video signal selector 14 or the audio / video signal selector 14. Record the provided fifth and sixth audio / video signals through the respective video tape recorders 280 and 282, respectively or simultaneously, or record the audio / video signals reproduced by one video tape recorder on the other video tape recorder. Record through.

Here, the first video tape recorder 280 is a VHS video tape recorder, and the second video tape recorder 282 is an 8 mm video tape recorder. Therefore, not only the 8 mm tape widely used in movie cameras and the like can be accommodated, but also the 8 mm / VHS system can be easily changed.

The television receiver control unit 30 controls the tuners 120 and 122 and the video signal processing unit 16 in response to commands input by the operation of the key input unit 36 and the remote control unit 38. The television receiver control unit 30 generates the first and second tuner control signals T1 and T2 to control the tuning operation of the tuners 120 and 122. By specifying different broadcast channels by each tuner, two channels can be watched at the same time.

On the other hand, the television receiver control unit 30 controls the video signal processing unit 16 by generating a double / wide control signal DB / WIDE and a left / right inversion signal REVERSE.

The first ROM 302 of the television receiver control unit 30 stores a program necessary for controlling the television receiver. The first microprocessor 300 performs a control operation by a program recorded in the first ROM 302 and generates a text signal for the user interface through the first OSD 304.

The OSD switching unit 306 selects one of the OSD signal generated by the first OSD 304 or the OSD signal generated by the master control unit 34 and provides it to the driver 18. The CRT driver 18 drives the CRT 20 according to a signal in which an OSD signal and an RGB signal are provided.

The double deck video tape recorder control unit 32 includes two microprocessors. One of them is for the first video tape recorder 280 and the other is for the second video tape recorder 282. Here, the microprocessor 322 that controls the second video tape recorder 282 depends on the microprocessor 320 that controls the first video tape recorder 280 to operate. Here, dependent means that it does not work alone, but depends on another to operate. That is, although the second microprocessor 320 is directly controlled by the master controller 34, the third microprocessor 322 receives a command from the master controller 34 through the second microprocessor 320 or It is operated by the control of the second microprocessor 320.

This is because the second video tape recorder 282 of 8 mm type is still less usable than the first video tape recorder 280 of VHS type, and is mainly used for reproducing a signal recorded by a movie camera. In view of this, instead of controlling the third microprocessor 322 directly from the master controller 34, the second microprocessor 320 controls the burden of the master controller 34.

The master control unit 34 includes a television receiver control unit 30 and a double-deck video tape recorder control unit 32 so that a predetermined operation is correctly performed in accordance with an operation command input through the key input unit 36 and the remote control unit 38. The audio / video signal selector 14 is controlled.

In the third ROM 342 of the master control unit 34, programs necessary for various controls are stored. The fourth microprocessor 340 performs a control operation by a program recorded in the third ROM 342 and generates a text signal for the user interface through the second OSD 344.

The master control unit 34 generates an audio / video selection signal AV_SELT signal to control the audio / video signal selection unit so that the video signal processing unit 16, the audio signal processing unit 22, and the double deck video tape recorder 28 are provided. To provide a signal suitable for the desired operation.

The double deck video tape recorder and the double / wide television receiver integrated with the CD-OK system unit have many input signals and many outputs, so that the user interface through the OSD can be used for the user to properly select the input / output signals. Is emphasized.

Accordingly, a dedicated OSD is installed in the master controller 34 to meet the enhanced user interface.

6 is a block diagram for explaining OSD switching in a double deck wide-television receiver with a double-deck video tape recorder CD-OK system unit.

In a television receiver having a structure integrated with a double-deck video tape recorder, the OSD switching device includes a first video tape recorder 280 and a second according to the control signals 3 bits (DATA, CLOCK, STRABE) of the master microprocessor 340. An A / V switching unit 60 for selecting the RGB signal of the video tape recorder 282 or the RGB signal of the CD-OK system unit 29; An OSD driver 344 overlapping the RGB signal output from the A / V switching unit 60 and the OSD signal generated from the master microprocessor 340 according to the control signal of the master microprocessor 340; A television microprocessor (300) superimposing an RGB signal and an OSD signal of the television receiver, and controlling an output of a signal in which the RGB signal and the OSD signal of the television receiver are superimposed in accordance with an OSD control signal; An OSD switching unit 306 for switching the output signal of the OSD driver 344 and the output signal of the television microprocessor 340 according to the control signal of the master microprocessor 340; A color signal processing unit 307 for color signal processing the OSD signal output from the OSD switching unit 306 and the RGB signal superimposed; A CRT driver 18 driving the CRT 20 according to an OSD signal output from the color signal processor 307 and an RGB signal superimposed; And a master microprocessor 340 for generating a text signal for the user interface, an OSD control signal, and a control signal for controlling the overall signal processing of the system.

In the case of combining different separate products, the functions of the products are different, so a microprocessor for controlling must be provided separately, and the integrated management of these is the master microprocessor 340.

In particular, the master microprocessor 340 controls the display of the OSD signal of the television receiver and the OSD signal of the double-deck video tape recorder / CD-OK system unit.

That is, according to the control signals 601, 602, 603, 604 of the master microprocessor 340, the A / V switching unit 60, the CD-OK system unit 29, the OSD driving unit 344, and the OSD switching unit The operation of 306 is controlled.

The A / V switching unit 60 inputs a composite video signal (hereinafter referred to as an RGB signal) output from the double deck video tape recorder 28 or an RGB signal output from the CD-OK system unit 29 and these signals. One of them is selected and output to the OSD driver 344. The OSD driver 344 overlaps the RGB signal output from the A / V switching unit 60 and the OSD generated by the master OSD 344, and the signal in which the RGB signal and the OSD signal overlap (OSD-RGB, Blanking; 606 is output to the OSD switching unit 306. At this time, the OSD driver 344 determines the presence or absence of the OSD signal by using the synchronous detection signal as a detection signal.

Since the functions of the 8-mm / VHS type double deck video tape recorder 28, the CD-OK system unit 29, and the television receiver are different from each other, the television OSD signal is the 8 mm / VHS type video tape recorder 28 and the CD. -Must be displayed on the CRT 20 independently of the system section 29.

That is, the double deck video tape recorder 28 and the CD-OK system unit 19 are directly controlled by the master microprocessor 340, and the television receiver is controlled by the television microprocessor 300.

When displaying the signal 606 in which the 8-mm / VHS type double deck video tape recorder 28 and the RGB signal output from the CD-OK system unit 29 and the OSD signal generated from the master OSD 344 are superimposed. The master microprocessor 340 outputs an OSD control signal (hereinafter referred to as an OSD killer signal) to the television microprocessor 300 so that the OSD signal 608 of the television is not displayed on the CRT 20.

On the other hand, when the RGB signal output from the television receiver and the OSD signal generated from the OSD 304 of the television receiver control unit 30 overlapped with the signal 608 is displayed, the master microprocessor 340 by blocking the OSD killer signal ) Displays the OSD signals of the double deck video tape recorder 28 and the CD-OK system unit 29 on the CRT 20.

The OSD switching unit 306 is a signal 608 in which the RGB signal and the OSD signal are output by the television microprocessor 300, and a signal 606 in which the RGB signal and the OSD signal are output from the OSD driver 344. ) Is switched under the control of the master microprocessor 340. The RGB signal output from the OSD switching unit 306 and the signal overlapping the OSD signal are processed by the color signal processing unit 307 and then applied to the CRT driver 18.

As described above, in the present invention, a double-deck video cassette recorder and a CD-OK system unit are incorporated in a double / wide television receiver, and an A / V system that can control them collectively is implemented to satisfy various needs of users. It has the effect of improving the added value.

In addition, the present invention incorporates a double-deck video cassette recorder and a CD-OK system unit into a double / wide television receiver, and implements an A / V system that can collectively control the screen to display OSD signals of separate devices having different functions. Can be displayed on.

Claims (1)

In the double deck wide-television television receiver with a double deck video tape recorder and a CD-OK system, the OSD switching unit may be configured according to a predetermined control signal. An A / V switching unit for selecting an RGB signal; An OSD driver for superimposing an RGB signal output from the A / V switching unit and an OSD signal generated from a master microprocessor according to a predetermined control signal; A television microprocessor that superimposes the RGB signal of the television receiver and the OSD signal in accordance with the OSD control signal and controls the output of the signal; An OSD switching unit for switching the output signal of the OSD driver and the output signal of the television microprocessor in accordance with a predetermined control signal; A color signal processor for color signal processing the OSD signal output from the OSD switching unit and the RGB signal overlapping each other; A CRT driver for driving a CRT according to an OSD signal and an RGB signal superimposed on the OSD signal output from the color signal processor; And a double-deck video tape recorder and CD-OK system integrated double / wide, including a master microprocessor for generating text signals for the user interface, OSD control signals, and predetermined control signals for controlling the overall signal processing of the system. OSD switching device in a television receiver.