KR0119503Y1 - Test apparatus by using rompack at television with a video song accompaniment apparatus - Google Patents

Abstract

This design stores a program for diagnosing the condition of a TV with a built-in TV with an external ROM, and interfaces the ROM pack with a microcomputer of the TV with a TV with an LCD through a connector so that the status of the TV can be easily changed with a low cost external ROM. The present invention relates to a test apparatus using ROMPAC for diagnosis of a built-in TV half cycle.

Description

Test device using ROMPAC in TV with built-in image cycle

1 is a schematic block diagram showing a computer accompaniment device according to the prior art,

2 is a schematic block diagram of a television with a built-in video half-period according to the prior art,

3 is a diagram showing a state of use of the test apparatus using the ROMPAC in the image semi-permeable TV according to the present invention,

4 is a schematic block diagram of a test apparatus using ROMPAM in a TV with a built-in image repeating cycle according to the present invention;

5 is a flowchart for performing a test using a ROMPAC in an image semi-permeable built-in television according to the present invention.

* Explanation of symbols for main parts of the drawings

10: antenna 12: tuner

14: Demodulation unit 16: Television signal selector

18: luminance / color signal separation unit 20, 32: selection unit

22: color demodulator 24: video accompaniment signal generator

26: video signal synthesizer 28: microcomputer

30: cathode ray tube drive unit 34: reverberation sound processing unit

36: amplification part 38: voice synthesis part

40: preamplifier 42: command input

44: External ROM Pack 46: Connector

243 graphic / text signal generator 244 accompaniment signal generator

246: video accompaniment controller 301: built-in video accompaniment TV board

300: TV body 301: Slot

302: Rom 303: Rompack body

The present invention relates to a test apparatus using ROMPAM in a TV with a built-in half-cycle. More specifically, an image of a TV board with a half-cycle embedded TV board can be diagnosed, adjusted, and tested for sound quality by programming a TV self-diagnostic program. A test apparatus using ROMPAC in a half-cycle embedded television.

In general, a television can receive a video signal and an audio signal at the same time by receiving a radio signal transmitted from a broadcasting station, and an external signal input terminal is provided for introducing a video and audio signal from an external device. Video and audio signals from video cameras, camcorders and video accompaniment devices can be monitored by CRT and speakers. Therefore, the user can select and view the video and audio signals input through the television signal or the external signal input terminal by using the operation button or the remote controller installed in the television.

On the other hand, the video accompaniment device that is rapidly developed and marketed is a device that displays lyrics along with song accompaniment by connecting to a TV monitor, LD video accompaniment system using a laser disc player, and CDG image accompaniment using a cassette disc graphic play. It is divided into computer accompaniment system using system and memory.

By the way, LD video accompaniment system using laser disc player has the best video and sound quality than any sound source, but since only 30 songs are contained on one laser disc, Juke Box can be used to service a large amount of songs. A disk changer such as

In addition, the CDG video accompaniment system can provide the same sound quality as a laser disc, but provides only a limited number of still picture information recorded in a sub-code channel of a compact disc, compared to a laser disc. Not only is the connection between video and music deteriorating, but there is a disadvantage in that a disc changer is required, as in a system using a laser disc player, because the number of songs contained on a compact disc is limited to about 15 songs.

On the other hand, although the computer accompaniment system cannot provide the same sound quality as the accompaniment system using a laser disc player and a compact disc graphic player, it can provide a large amount of accompaniment information and lyrics information of about 1,000 to 1,500 songs. There is an advantage that the selection can be made at high speed, which will be described schematically with reference to FIG.

1 is a schematic block diagram of a computer accompaniment apparatus using a memory, which provides a stereo accompaniment signal and lyrics information and is used in connection with a general monitor and an audio amplifier.

Referring to FIG. 1, when a specific song is selected by the command input unit 1 and an accompaniment start command is input, the control unit 2 controls the accompaniment signal generator 3 to generate an accompaniment signal of the specified song. To do that. At the same time, the controller 2 controls the text signal generator 4 to generate lyrics information of a specified song.

The voice signal input through the voice input unit 5 is synthesized with the accompaniment signal by the synthesizer 6 and then provided to the audio amplifier through the audio output terminal, and the output of the text signal generator 4 is provided to the monitor so that the user You can sing along with the accompaniment.

However, the computer accompaniment device requires a separate monitor to effectively monitor the accompaniment signal and the lyrics signal, and also has to be equipped with an amplifier. In other words, the user had to purchase or handle two devices separately.

In addition, since the computer image accompaniment device is equipped with a command input unit on its own, the user has to operate the television receiver separately in addition to the operation of the image accompaniment device, thereby causing inconvenience.

In order to solve the above problems, Korean Patent Application No. 93-3422 by the present applicant discloses a system in which an image accommodating device and a television are integrated to increase convenience in use. It will be described schematically with reference.

FIG. 2 is a schematic block diagram of a TV having a built-in video half-period, which is divided into a video-related system and a voice-related system. Also, in the operation of performing the functions of the TV and the video accompaniment apparatus, channel selection, video selection, and volume are performed. In addition, the controller performs all the adjustments of the adjustment terminals, and performs all functions such as curve tack, pitch and speed adjustment, and reservation setting in the operation of performing the function of the image accompaniment device.

In particular, in the video accompaniment mode, the audio signal is provided only by the video accommodating device, but the video signal is one of a broadcast signal of a selected channel formed by the television, an externally provided signal, and a graphic signal generated from the video accompaniment signal generator. By providing it, it is possible to provide a lively video corresponding to the contents of the song.

First, in operation of the video signal system, the broadcast signal (RF signal) input to the tuner unit 12 through the antenna 10 is converted into an intermediate frequency signal (IF signal) and input to the demodulator 14. The IF signal input to the demodulator 14 is formed of a composite video signal (CVS) and an audio signal (L / R) and input to the television signal selector 16. The television signal selector 16 also receives signals from the outside. That is, signals V1 and V2 at the first and second video signal sources (not shown) and signals S-V at the super VHS signal source (not shown) are input.

The video signal CVS, V1 or V2 selected by the television signal selection unit 16 is input to the luminance / color signal separation unit 18. The luminance signal Y + S including the synchronization signal separated by the luminance / color signal separator 18 is input to one side input of the first selector 20 and the color signal C is input to the color demodulator 22. On the other hand, as the other input of the first selector 20, the pseudo synchronization signal PS generated by the image accompaniment signal generator 24 is input. The signal Y + S or PS selected by the first selector 20 is input to the color demodulator 22.

On the other hand, when the super VHS signal S-V is selected by the television signal selector 16, it is directly input to the color demodulator 22 and the first selector 20 without passing through the luminance / color signal separator 18.

The first selector 20 is controlled by the graphic mode signal G generated by the image accompaniment signal generator 24. When the graphic mode signal G is high, the image accompaniment signal generator 24, the pseudo synchronous signal PS is selected and output, and in the case of LOW, the video signal from the television signal selector 16 is selected and output.

The color signal C and the luminance signal Y + S inputted to the color demodulator 22 are demodulated into color difference signals R-Y, B-Y, G-Y, and -Y, and are input to the image signal synthesizing unit 26. The synchronization signal H / V extracted from the luminance signal Y + S including the composite synchronization signal is provided to the image accompaniment signal generator 24 and the controller 28. The OSD (On Screen Display) signal applied from the control unit 28 to the color demodulator 2 is combined with the demodulated color difference signal and output.

As another input of the image synthesizing section 26, graphic signals and text signals from the image accommodating signal generating section 24 are input in the form of R, G, B, BLK, and synthesized with the color difference signals provided from the color demodulation section 22. And output to the cathode ray tube (CRT) driver 30. Here, the OSD signal from the control unit 28 is applied to the image signal synthesizing unit 26 by applying a blanking signal BLK_OSD from the control unit 28 and a blanking signal BLK from the image accompaniment signal generator 24. The priority is set in order of the graphic signal, the text signal in the video accompaniment signal generator 24, and the signal in the television signal selector 16. FIG.

Next, in the operation of the sound ray signal system, the audio signal SVBS, V1, V2 or S-V selected by the television signal selector 16 is input to the second selector 32. When the television mode is selected by the controller 28, the audio signal from the television signal selector 16 is selected by the second selector 32. When the image accompaniment mode is selected, the video accompaniment signal generator 24 The accompaniment signal is selected and output to the audio output device. That is, the signal output from the second selector 32 is input to the reverberation sound processor 34, and after the reverberation sound processing and the equalizing process are performed, it is output to the amplifier 36. The signal amplified by the amplifier 36 is provided as a voice output by the speakers L, R and WOOFER.

The voice signal VOICE introduced through the microphone is combined with the accompaniment signal of the image accompaniment signal generator 32 by the voice synthesizer 38 and then provided to the second selector 32.

Meanwhile, as shown in FIG. 2, the image accompaniment signal generator 24 includes a graphic / text signal generator 242 for generating graphic signals and text signals, an accompaniment signal generator 244 for generating accompaniment sounds, and graphics. Controls the operation of the text signal generator 242 and the accompaniment signal generator 244, and inputs the graphic accompaniment controller 246 for generating a pseudo synchronous signal and graphic / text information and sound source information that can be provided from the outside. An external interface (not shown) is provided to the character signal generator 242 and the accompaniment signal generator 244.

The graphic / character signal generator 242 includes a graphic memory for storing graphic information, a character memory for storing character information, a graphic / character processor for combining graphic information read from the graphic memory and character information read from the character memory, and the graphic. And a digital-to-analog converter for outputting the character processor's output.

The accompaniment signal generator 244 digitally / analog converts the output signals of the sound source information processor and the sound source information processor which input sound source information read from the sound source memory and the sound source memory, which store the sound source information, convert them into accompaniment signals, and output them. It has a D / A converter for outputting. Here, the sound source information stored in the sound source memory is MIDI information.

On the other hand, the image accompaniment controller 246 performs a built-in program to control the graphic / text signal generator 242 and the accompaniment signal generator 244, a remote control command from a remote control device (not shown) And a synchronization signal generator for generating a pseudo-synchronous signal equivalent to the synchronization signal of the television signal and the interface transmitted to the microprocessor.

On the other hand, the preamplifier 40 interfaces a control command from the remote control to the microcomputer 28, and the command input section 42 provides at least a television / image accompaniment mode selection key for inputting a command signal to the microcomputer 28; It is equipped with accompaniment video signal selection key, curve tap number pad, start / cancel key, reservation key, pitch adjustment key and speed adjustment key.

As such, the video accommodating device is formed integrally with the television to increase convenience in use.

Therefore, the present invention is an advance of the above technical contents, and the purpose of the present invention is to program the TV self-inspection program with the built-in video half-cycle in an external ROM pack to perform diagnosis, screen adjustment, sound quality test, etc. The present invention provides a test apparatus using ROMPAC in an image-equipped periodic television.

A characteristic of the test apparatus using the ROMPAC in the image half-cycle embedded television according to the present invention for achieving the above object is that, in the image half-cycle embedded television, a program for diagnosing a state of the image half-cycle embedded television in an external ROMpack is stored. The ROM is then interfaced with the microcomputer of the image semi-permeable television through a connector to self-diagnose the condition of the television with an external ROM.

Hereinafter, with reference to the accompanying drawings, a preferred embodiment of a test device using a ROM pack in a video semi-permeable TV according to the present invention will be described in detail.

FIG. 3 is a state diagram of a test apparatus using a ROMpack in an image semi-permeable television according to the present invention. As a state diagram, a ROMpack 44 having a circuit board having a program IC ROM 302 connected therein is constructed. The loom pack 44 is used by being inserted into the slot 301 of the loom pack body 302.

4 is a schematic block diagram of a test apparatus using ROMPAC in an image semi-permeable television according to the present invention. In FIG. 4, the configuration and operation description of the same parts as those in FIG. 2 are omitted, and the same blocks have the same reference numerals.

Referring to FIG. 4, the ROMPAK 44, which stores a program for performing a test, color test, sound quality test, and the like of a TV board with a built-in image repeating period, is connected to the microcomputer 28 of FIG. 2 through a connector 46. .

In this scheme, the ROM screen containing the inspection program is inserted into the slot 301 and the execution key is input through the command input unit 42 or the remote controller.

Therefore, if No. 1 is selected as shown in Fig. 5 (step 501), a red color pattern is displayed on the screen (step 502).

You can then test whether the correct red color is displayed by the person or machine.

Similarly, if number 2 is selected (step 503), a blue color bar is displayed on the screen (step 504), and it can be tested whether the correct blue color is displayed by a person or machine.

At this time, if it is determined that the correct color is displayed, the color adjustment is completed. If the correct color is not displayed, step 3 is selected (step 505) and color adjustment is performed until the correct color adjustment is made (step 506).

On the other hand, if No. 4 is selected (step 507), oscillation is performed at 400 Hz or 100 kHz to test whether the sound quality of the accompaniment is properly output (step 508).

If the above process is continued, all the tests necessary for the video half-cycle embedded television can be performed.

Then, the test program is read from the ROM pack, stored in a RAM in a video accompaniment television, and another ROM pack containing an image accompaniment is stored in the slot, and N is selected (step 509). It is possible to test whether there is an error or whether it is operating properly (step 510).

In this case, the test result may be displayed on the screen using an OSD.

Meanwhile, the test process may be performed by the user selecting a desired number, but may also automatically perform FIG. 5 sequentially.

In addition, since the self-diagnostic ROM pack can be self-diagnosed in the home, the number of after-sales service calls can be reduced, thereby reducing costs.

In addition, if you call the A / S call at home, take the self-diagnostic ROM pack at the A / S center, etc., and perform the test without disassembling the TV, so that the cost and time can be saved.

In addition, if you insert a ROM pack that stores video accompaniment into a slot at home, you can use the image accompaniment without limiting the memory capacity of the TV with built-in video accompaniment at home. It is available at cost.

That is, when the ROM pack 44 is inserted into the slot 302 and the ROM pack 44 is selected by the command input unit 42 or the remote controller, the microcomputer 28 accesses the ROM pack data through the connector 46.

At this time, if the accessed ROMpack is a ROMpack having a built-in diagnostic program, the microprocessor 28 performs a self-diagnosis.

However, if the image accompaniment or the like is a ROM pack, the microcomputer 28 accesses the audio information and the image information of the ROM pack and outputs it to the image accompaniment signal generator 24.

Since the subsequent operation is the same as the second degree described above, it will be omitted.

In this case, the ROMPAC may be replaced with an IC memory card.

As described above, according to the test apparatus using ROMPAM in a TV with a built-in image repeating cycle according to the present invention, it is possible to program an image display with a half cycle built-in TV board at a low cost by programming an image display device with an embedded ROM package and interfacing with a microcomputer. It can easily perform color adjustment, sound quality test, etc.

Claims (1)

A video half-cycle built-in television, comprising: a ROM pack containing a program for testing an abnormality in color and sound quality of the television; a ROM pack main body including a slot for attaching and detaching the ROM pack; and a connector for connecting the ROM pack to the television. And a microprocessor for receiving the program information stored in the ROMPAK through the connector, and performing a self-diagnosis of the TV by the received program. .