KR970010639B1 - Tv receiver with cd player including self test function - Google Patents

Abstract

No content

Description

Compact disc player all-in-one television set with self-check

1 is a front view of one embodiment of a compact disc player integrated television receiver.

2 is a view for explaining the arrangement of keys of the control box of the television receiver with integrated compact disc player of FIG.

3 is a circuit block diagram of a television receiver integrated with a compact disc player.

4 is a circuit block diagram of one preferred embodiment of the compact disc player of FIG.

5 is a flowchart for explaining a method for self-checking an error of a compact disc player unit according to the present invention.

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a television receiver integrated with a compact disc player, and more particularly to a method for checking an error of a compact disc player portion in the receiver.

The present applicant invents and sells a compact disc song accompaniment device, and also invents and sells a so-called karaoke television receiver. The compact disc song accompaniment device, also known as the CD-OK device, stores about 2,000 song accompaniment and lyrics and about 4,000 still images on a single compact disc, and plays back the accompaniment and song lyrics data of the selected song. Plays back the screen so that it is displayed as the background screen. Karaoke TV receivers store over 400 lyrics, accompaniment data and dozens of graphic image data in a semiconductor memory device, and provide CDG-level karaoke. Since CD-OK has no display unit, it is inconvenient to use because it displays the video signal and audio signal reproduced by connecting to the external video connection jack of the television receiver through the audio and video output terminals on the CRT and outputs the audio to the speaker. The karaoke TV receiver is integrated with the TV, but the number of selectable songs is about 1/5 less than the CD-OK, and the background level is not diverse. .

In addition, a variety of compact discs such as CD digital audio, CDG, CDV, etc., and their respective players have been introduced into production. Therefore, consumers have to purchase each player each time a new product is released, which increases the burden of product purchase cost, and the difficulty of securing an installation space by installing and installing products having similar functions, respectively. The external connection lines for the interconnection were complicated and thus aesthetically unfavorable. In addition, since each product has a dedicated remote control, it is inconvenient to select and use a remote control suitable for the product at that time. In order to solve the problems of the prior art, there is an error in the compact disc player unit in a CD player integrated television receiver. If this occurs, not only the power consumption continues to be consumed in the compact disc player section, but a problem may also occur that affects the circuit.

SUMMARY OF THE INVENTION An object of the present invention is to provide a method for saving only the functions of the television itself by detecting a compact disc player and ignoring all functions related to the compact disc when an error occurs in the compact disc player to solve the above problems. It is.

Compact disc control means included in the compact disc player means for controlling the compact disc player means, for generating a first control signal having various information about the compact disc player means, and a television signal receiving means for achieving the above object. And television control means for controlling the video and audio means by inputting the video means, the audio means, the first control signal and the second control signal controlled by the user, and controlling the compact disc control means. The method for self-checking the error of the compact disc player means according to the present invention in a compact disc player integrated television receiver comprises: a first error checking step of first checking the error of the compact disc player means; In the first error checking step, A reset step in which the television control means resets the compact disc control means after being examined, a second error checking step of secondly confirming the error of the compact disc player means after the reset step, and the second A power off step of cutting off the power supplied to the compact disc player means after reconfirming the error in the car error checking step, and a switching step of switching the compact disc player integrated television receiver to only the television function after the power off step; It is characterized by including.

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

1 shows a front view of a CD-TV composite product. In Figure 1, 10 is the CRT, 12 is the speaker, 14 is the microphone jack, 16 is the disc door, 18 is the open / close button, 20 is the remote control receiver window, 22 is the power indicator lamp, 24 is the main power button, and 26 is the control. It is a box. 2 shows the arrangement of the keys installed in the control box 26. The keys are largely divided into a television control key section 28 and a CD control key section 30. The television control key section 28 includes channel up / down keys, sound up / down keys, menu keys, TV / VIDEO keys, and mute keys. CD control key 30 includes pitch up / down key, tempo up / down key, confirmation key, reservation key, cancel key, 0-9 number keys, skip key, scorecard, male / female key, background selection key. , Play key, stop key, music selection up / down key, CD on / off key, menu key, and the like.

3 shows a circuit block diagram of a preferred embodiment of a CD-TV composite product. 3 is a television signal receiver 32 for receiving a largely tuned television signal, detecting and outputting a video signal and an audio signal from the received signal, a first control signal C1 inputted with data, and a second control inputted with a remote controller. A compact disc player unit 34 having a song accompaniment function for inputting a signal C2 and reading data from at least one type of compact disc and outputting a video signal and an audio signal when the two control signals coincide with each other, and a television signal receiver 32 Video signal processing unit for selectively inputting the video signal V1 and the video signal V2 of the compact disc player unit 34 for signal processing and displaying the processed signal through a display unit 10 such as a CRT or LCD. 36, the audio signal A1 of the television signal receiving section 32 and the audio signal A2 of the compact disc player section 34 are selectively input And an audio signal processor 38 for outputting the processed signal as a sound through a sound conversion means such as a speaker 12, and AC power supplied to the television power signal Vtv and the compact disc player 34. Power supply 40 for generating Vcd), and in response to a control signal input through the control box 26 or the remote controller 27, set the selected television or compact disc mode to supply power to each part of the power supply 40. And a television control section 42 for controlling the signal selection of the video signal processing section 36 and the audio signal processing section 38 and providing the first control signal C1 to the compact disc player 34. The video signal processing section 36 includes first selection means 44 for selecting and outputting the video signal V1 of the television signal receiving section 32 and the video signal V2 of the compact disc player section 34, and the first selection. A video processing section 46 for processing the video signal input through the means 44 and outputting an RGB signal, a CRT circuit section 48 for inputting the RGB signal to display the video signal on the CRT, and a background in the compact disc mode. And a second selection means 50 for connecting the video signal V1 of the television signal receiver 32 to the external video input terminal EX of the compact disc player 34 at the time of selection. The output of the first selection means 44 is also provided to a video output jack MV for an external monitor. The video processor 46 synchronizes the comb filter 52 for separating the video signal into a color signal and a luminance signal, and a selector 54 for selecting a color / luminance signal separated from the S-VHS signal input from an external connection jack. In the signal processor 56 which performs the separation, the luminance signal processing and the color signal processing, and synthesizes the OSD signal with the processed RGB signal to generate the RGB output, the RGB signal and the signal processor 56 provided by the compact disc player 34 And an RGB mixer 58 for mixing the processed RGB signals. The audio signal processing unit 38 includes an amplifier 60 for amplifying the audio signal A1 of the television signal receiving unit 32 from 0.4 Vrms to 2 Vrms, and the microphone 15 to the audio signal A2 of the compact disc player 34. Mixing means 70 for mixing the input signal through the third, the third selector 62 for selecting and outputting the audio signal of the amplifier 60 and the audio signal of the mixing means 70, and the third selector 62 And a surround processor 64 for inputting the audio signal selected by the stereoscopic sound processing, and an audio output unit 66 for driving the speaker 12 by echo processing the surround audio signal. The reason for the amplification in the amplifier 60 is to unify it to one level in order to prevent the volume from being adjusted each time since the label of the audio signal of the television and the audio signal level of the CD reproduction sound are different from each other. The audio signal is two channels of L / R. The output of the third selector 62 is also provided to an audio output jack MA for an external monitor. 68 is an audio input amplifier. The television signal receiver 32 provides a fourth processor (74) and a signal processor (76) for selecting and outputting the received television video signal and at least one externally input video signal (V11, V12, S-VHS). Include. The signal processor 76 inputs preset data to tune the television broadcast channel and demodulates the television signal received through the tuned channel to generate a video signal and an audio signal. The audio signal processor 38 includes fifth selecting means 72 for selecting and outputting the audio signal of the television signal receiver 32 input and at least one external audio signal A11, A12, S-A. The television control unit 42 includes a microprocessor 84, a remote control signal receiver 86, a control box 26, and a remote control 27. The microprocessor 84 inputs a synchronization signal (H / V) from the signal processor 56 of the video processor 46 and provides an OSD signal to the signal processor 56. The microprocessor 84 also generates switching control signals X1-X6 of the selection means. The remote control signal receiver 86 receives the remote control signal emitted from the control box 26 or the remote control 27 and provides the received signal to the microprocessor 84 and the compact disc player 34 in common. The power supply unit 40 inputs a commercial exchange in the primary power supply unit 78 to generate a primary power supply voltage, and provides a standby power supply voltage to the television control unit 42. The television power supply unit 80 generates various power supply voltages for the television signal receiver 32, the video signal processor 36, and the audio signal processor 38. The CD power supply unit 82 generates various power supply voltages of the compact disc player 34 in accordance with the power control signal PW of the television control unit 42.

4 is a circuit block diagram of a preferred embodiment of the compact disc player section 34. As shown in FIG. 102 is a compact disc, 104 is an optical pickup, 106 is a spindle motor, 108 is a high frequency signal amplifier, 110 is a servo circuit, 112 is a digital signal processor, 114 is a main controller, 116 is a sub-controller, 118 is a disc tray driving circuit, 120 A CDG decoder, 122 a CD-ROM decoder, 124 a CD-OK decoder, 126 a video selector, 128 a digital analog converter, and 130 an audio selector. The signal reproduced from the disc is output from the digital signal processor 112 to the CD. Here, if the disc is a CDG disc, the sub code is transmitted to the CDG decoder 120 so that the NTSC encoded graphic signal is reproduced and output. At this time, the CD signal is reproduced and output through the digital analog converter 128. In the case of a CD-OK disc, the video selector selects a video signal to be reproduced by the CD-OK decoder 124, and selects an output of the CDG. The audio selector 130 selects the accompaniment signal output from the CD-OK decoder 124 in the case of a CD-OK disc and otherwise selects the audio signal output from the digital analog converter 128. The CD-OK decoder 124 receives data obtained from the CD-ROM decoder 122, and outputs the MIDI data as an accompaniment signal through the built-in sound source integrated circuit, and the RGB video data of the background image having the lyrics data superimposed on the RGB signal. It can be output as a video signal through a built-in NTST encoder. Also, the CD-OK decoder l24 may input an external video signal and output an external video signal having lyrics superimposed as a video signal. In addition, as shown in FIG. 3, the signal input through the microphone 15 is amplified by the amplifier 88 and the amplified signal is detected by the microphone input detecting means 90 and the detected signal is CD-. The OK decoder 124 receives and performs a score determination and loads the result on a video signal. The main controller 114 controls the whole of the system and controls the switching of the video selector 126 and the audio selector 130. The sub-controller 116 exchanges the first control signal C1 in the form of data with the television control unit 42 via the data line and also receives the second control signal C2 received from the remote control signal receiver 86. . The sub-control unit 116 compares the first and second control signals (C1, C2) and if the two signals match, recognizes the remote control signal as a legitimate command signal to perform the corresponding command.

Effects of the compact disc player integrated television receiver configured as described above are as follows.

First, in the state in which commercial exchange is applied, the set is maintained in the standby state by the primary power supply unit 78 of the power supply unit 40. That is, standby power is supplied to the microprocessor 84 of the television control unit 42 to maintain the reception standby state of the remote control signal.

When the user presses the power button 24 or inputs a power-on command through the remote control, the TV power supply voltage is supplied to the television signal receiver 32, the video signal processor 36, and the audio signal processor 38 through the television power supply 80. This is provided. In the initial state, the selection means 44, 62, 72, 74 are switched to the TV mode. The selecting means 50 is kept off. Therefore, the television mode is always set as the initial mode. When the user presses the CD power key of the control box or inputs the CD power key through the remote controller, the microprocessor 84 generates the power control signal PW to enable the CD power supply 82, and thus the CD power supply 82 ) Supplies a power supply voltage to the compact disc player 34. The compact disc player 34 reads disc information from the lead-in area of the disc inserted through the door, and transmits a control signal corresponding to the disc to the television control unit 42. The television control unit 42 controls the switching of the selection means in accordance with the disc type. In the case of a CD digital audio disc, the switching control signal X6 is generated to switch the second selection means 62 to the CD mode and display related information, for example, disc table contents information in the OSD. Thus, the user can interactively use the set through the remote control while viewing the OSD displayed on the CRT. In the case of a CDG or CD-OK disc, switching control signals X2 and X6 are generated to switch the selection means 44 and 62 to the CD mode. When using the song playing function using a CD-OK disc, a background image is provided as a still image recorded on the disc. When the user presses the background selection key of the control box 26, the switching control signal X3 is generated to switch the third selection means 50 to the on state. Therefore, it is possible to select as a TV screen background wallpaper at the time of song performance. In addition, when the user wants to receive a background image from an external video source such as a video camera or a video cassette recorder, a switching control signal (X1) is obtained by connecting the video output terminal of the corresponding device to the external video input terminal and selecting the corresponding external video input terminal. Is generated so that the selection means 74 switches to select the corresponding external disk signal. In the case of using the external video as a background screen, the compact disc player unit 34 inputs an external video signal to the input terminal EX to superimpose the lyrics information generated internally, and to output the video signal having the lyrics information superimposed. Display on the CRT 10 via the first selection means 44. In addition, the compact disc player unit 34 may output a video signal, which is a composite video signal, and output the RGB signal to display on the CRT 10 through the RGB mixer 58 of the video processor 46. If the CD mode is not selected in order to minimize power consumption, the CD power supply unit 82 is in a disabled state to cut off the power supply to the compact disc player unit 34.

When an error occurs in the player unit 34 shown in FIG. 3 of the compact disc player integrated television receiver, the television microprocessor 84 detects this and ignores all functions related to the compact disc, thereby preventing the television itself. A method for saving the bay is described in detail as follows with reference to the above-described drawings and FIG.

5 is a flowchart illustrating a method for self-checking an error of a compact disc player unit according to the present invention.

The television microprocessor 84 shown in FIG. 3 first checks whether data has been transmitted from the main controller 114 shown in FIG. 4 via the first control signal C1 (step 200). If step 200 is not satisfied, it is determined whether it is time to check data to check an error of the compact disc player unit 34 (step 202). If step 202 is not satisfied, operation 200 starts again. After satisfying step 200, the television microprocessor 84 shown in FIG. 3 determines whether data of the kind such as night coming from the main controller 114 are normal (step 204).

First, when the power is turned on through the main power button 24 shown in FIG. 1, data having information on the presence or absence of a disk.

Second, data having information on opening and closing when the disc door 16 is opened and closed.

Third, data having information on the presence or absence of a disc when the disc door 16 is opened or closed.

Fourth, data containing information about the type of compact disc.

On the other hand, if the step 204 is satisfied, the error checking of the compact disc player unit 34 is ended, and if the step 204 is not satisfied or the step 202 is satisfied, the television microprocessor 84 transmits to the compact disc player unit 34. It is determined that an error has occurred, and the main controller 114 is reset through the first control signal Cl shown in FIG. 3 in order to ensure the error occurrence inspection of the compact disc player unit 34 (see 206). step). After the reset, the main controller 114 checks again the presence or absence of the disc in the compact deck, and must transmit data containing the checked information in addition to the presence or absence of the disc to the television microprocessor 84. The television microprocessor 84 again determines whether the data has been normally transmitted at the time of checking the error (steps 208 to 212, which are the same steps as from step 200 to step 204), and still has normal data. Otherwise, it is determined that an error has finally occurred in the compact disc player unit 34, and the power supply unit 82 is controlled to cut off the power supply of the compact disc through the PW terminal of the television microprocessor 84 shown in FIG. Step 214). After step 214, the television microprocessor 84 controls the first selecting means 44 shown in FIG. 3 to select the television video signal, and the third selecting means 62 to select the television audio signal. Step 216). After step 216, all inputs related to the compact disc player 34 coming through the control box 26 or the remote controller 27 are ignored (step 218) to implement a function of the television itself.

As described above, the present invention has the effect of preventing unnecessary consumption of power and protecting the circuit of the compact disc player unit by stopping the operation of the compact disc player unit when an error occurs by inspecting the compact disc player unit by itself.

Claims (4)

A compact disc control means which is included in a compact disc player means to control the compact disc player means and generates a first control signal having various information about the compact disc player means, a television signal receiving means, a video means, A compact disc player-integrated television comprising audio means and television control means for inputting the first control signal and a second control signal controlled by a user to control the video and audio means and to control the compact disc control means. The method for self-checking the error of the compact disc player means in the receiver includes a first error checking step of first checking the error of the compact disc player means; A reset step in which the television control means resets the compact disc control means after the error is checked in the first error checking step; A second error checking step of secondly checking the error of the compact disc player means after the reset step; A power cutoff step of cutting off the power supplied to the compact disc player means after reconfirming the error in the second error checking step; And a switching step of switching the compact disc player-integrated television receiver to only a television function after the power-off step. The method of claim 1, wherein the first error checking step comprises: a first judging step of determining whether the first control signal has been transmitted; A second determination step of determining whether it is time to check the error if the first determination step is not satisfied, and proceeding to the first determination step if not satisfied; If the first judging step is satisfied, it is determined whether the data contained in the first control signal is normal, and if it is satisfied, the error check is terminated. If not, the third judging step proceeds to the reset step. Self-checking the error of the compact disc player means. The method of claim 1, wherein the second error checking step comprises: a fourth judging step of re-determining whether the first control signal has been transmitted; A fifth determination step of determining whether it is time to check the error if the fourth determination step is not satisfied, and proceeding to the fourth determination step if not satisfied; If the fourth judging step is satisfied, the second judging step of re-determining whether the data contained in the first control signal is normal, and if it satisfies, the error check is terminated, and if it is not satisfied, the error occurs. Self-checking the error of the compact disc player means characterized in that it comprises a. The method of claim 1, wherein the switching step comprises: a signal selection control step of controlling the video and audio means to select only signals related to television after the power-off step; And an end-of-check step of disregarding the signals related to the compact disc player means among the second control signals after the signal selection control step, and ending the error check. .