KR0133086B1 - Disc door control method & device for cd-player united with a tv-receiver - Google Patents

Abstract

A method for controlling a disk door of a television set containing a compact disk player is disclosed. The method comprises a step of determining whether the power is applied or not; a step of determining whether a door state signal is a first level in case that the power is applied; a step of changing the first level to a second level so as to open the door in case that the door state signal is not a first level; a step of determining whether the switching control signal for changing the state of the door is inputted or not; and a step of reversely changing the state of the door and cutting off the power applied to the compact disk unit.

Description

Disc door control method and apparatus for performing the same in compact disc player integrated television receiver

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

FIG. 2 is a diagram for explaining the arrangement of keys of the control box of the television receiver integrated television receiver 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 of controlling a power source used in a disc door and a compact disc player unit according to the present invention.

FIG. 6 is a flowchart for describing in detail operation 210 of FIG. 5.

FIG. 7 is a flowchart for explaining FIG. 6 in more detail.

8 is a block diagram of a disc door control apparatus according to the present invention for performing the disc door control method shown in FIG.

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a television receiver integrated with a compact disc (hereinafter referred to as CD) player, and more particularly to a method for controlling the power supply of a disc door and a CD unit 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. A compact disc song accompaniment device, also known as a CD-OK device, stores more than 2000 song accompaniment and lyrics and 4000 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 the 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, diversification of compact discs such as CD digital audio, CDG, DDV, and the like, and their respective players have been commercialized and introduced. 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 operate the compact disc player unit in a CD player integrated TV receiver to solve the problems of the prior art, The compact disc player operation terminal must be turned on.If you want to insert the disc containing the music to be used for the wake-up call by opening the disc door by using the automatic morning call function, turn on the compact disc terminal. The inconvenience of having to insert the disc after making the player part operable.

SUMMARY OF THE INVENTION An object of the present invention is to provide a method for controlling the disc door separately from the entire compact disc player unit and controlling the power required for solving the above problems.

Another object of the present invention is to provide an apparatus for performing the method.

In order to achieve the above object, in the compact disc player integrated television receiver, the method for controlling the power signals of the disc door and the compact disc player unit is determined by the power signal of the compact disc player unit. A first judging step of checking supply, a second judging step of determining whether a door state signal indicating opening and closing of the door after the first judging step is at a first level, and the second judging step is satisfied If not, the variable for instructing the opening and closing of the door is set to the second level, and if the second judging step is satisfied, the variable determining step of setting the variable to the first level; and opening and closing the door after the variable determining step. If it is not satisfied by judging whether a switch control signal to change A door control step of causing the disc door to be opened and closed opposite to the current state after the third judging step and the third judging step are satisfied, and blocking the power signal of the compact disc player unit after the door is in the first state; It is characterized by including.

Disc door control apparatus according to the present invention is a compact disc player integrated television receiver in which a compact disc player and a television are integrated, the power supply means for supplying main power and standby power to the compact disc player and the television. And door control means for controlling opening and closing of the door for inputting the disc of the compact disc player, a door state signal indicating opening and closing of the door, and inputting a door control signal for opening and closing the door. A door control means for controlling the control means, controlling the whole of the compact disc player, checking whether power is supplied to the power supply means, inputting a switch control signal generated by the user to change the opening and closing of the door, The door state signal is input to Controlling said power source means to generate the door control signal and said main and standby power selectively supplied to the compact disc player, characterized by comprising a television control unit which controls the entirety of the television.

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 reception 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 28 includes a channel up / down key, a sound up / down key, a menu key, an RV / VIDEO key, and a mute key. CD control key 30 includes pitch up / down keys, tempo up / down keys, confirmation keys, reserved keys, cancel keys, 0-9 numeric keys, skip keys, scorecards, male / female key, background selection keys. , Play key, stop key, selection up / down key, CC 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 shows a television signal receiver 32 for receiving a large-scaled 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 unit 32 and the audio signal A2 of the compact disc player unit 34 are selectively input to process the signal. The audio signal processor 38 outputs the high-processed signal as sound through a sound conversion means such as a speaker 12, and the power signal of the television power signal Vtv and the compact disc player 34 by receiving AC power. The power supply unit 40 generating Vcd) and the selected TV or compact disc mode in response to a control signal input through the control box 26 or the remote controller 27 to supply power to each unit of the power supply unit 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 the 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 to one level in order to prevent the volume adjustment at that time because the level of the audio signal of the television and the level of the audio signal 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 tunes a television broadcast channel to which preset data is input, demodulates a television signal received through the tuned channel, and generates 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 to 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 to be used 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 unit 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 subcode is transmitted to the CDG decoder 120 to reproduce and output the NTSC encoded graphic signal. 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 the data obtained from the CD-ROM decoder 122, and outputs the MIDI data as an accompaniment signal through a built-in sound source integrated circuit. The RGB video data of the background image having the lyrics data superimposed is an RGB signal. It can be output as a video signal through a built-in NTST encoder. In addition, the CD-OK decoder 124 may input an external video signal to output an external video signal having lyrics superimposed as a video signal. Further, 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 is received and score determination is performed, and the result is loaded on the 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 receives the first and second control signals C2. The sub-control unit 116 compares the first and second control signals (C1, C2) and if the two signals match, and 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, the 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 a user presses the power button 24 or inputs a power-on command through the remote controller, the television 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 CC power key of the control box or the CD power input through the remote control, 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, a 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 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, the TV screen can be selected as the background image 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 video 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. The first selection means 44 allows the display to be displayed on the CRT 10. 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.

5 is a flowchart for explaining the disc door control method and the power control method used in the compact disc player unit according to the present invention.

6 is a flowchart for explaining in detail the step 212 shown in FIG.

FIG. 7 is a flowchart for explaining FIG. 6 in more detail.

FIG. 8 is a block diagram of a disk door control apparatus according to the present invention for performing the disk door control method shown in FIG. 5, wherein the television signal receiver 32, the video signal processor 36 and the video signal processor 36 shown in FIG. TV unit 300 corresponding to audio signal processing unit 38, compact disc player unit 302 corresponding to compact disc player unit 34, compact disc power source unit 304 corresponding to power supply unit 84, FIG. The door control unit 306 corresponding to the sub-controller 116 shown in FIG. 1, the compact disc control unit 308 corresponding to the main controller 114, and the television control unit corresponding to the television microprocessor 84 shown in FIG. 3 ( 310).

The disc door control and power control method for inserting the disc in the standby state of the compact disc player integrated television receiver described above will be described in detail with reference to FIGS. 5, 6, 7 and 8 as described above.

FIG. 8 for explaining the present invention is shown because it corresponds to the parts shown in FIGS. 3 and 4 but additionally includes a function for performing the door control method and apparatus according to the present invention. The description refers to the blocks of FIG. 8 but refers to FIGS. 1, 2, 3 and 4 described above.

The television microprocessor 84 shown in FIG. 8 frequently checks whether power has been supplied through the primary power supply 78 shown in FIG. 3 (step 20).

The compact disc control unit 308 shown in FIG. 8 checks whether the disc door 16 shown in FIG. 1 is open or closed through the door control unit 306 from time to time to the TV control unit 310 as a door state signal. It is assumed that the door is open when the door status signal is high level, and the door is closed when the signal is low level.

After step 200, the TV control unit 310 inputs the door state signal to check whether it is high level or low level (step 202). If the door state signal is low level, the TV control unit 310 sets the door variable for the door control of the TV control unit 310 to low level. If the door state signal is at a high level, the door variable is stored at a high level (step 206). The television control unit 310 shown in FIG. 8 blocks the compact disc power supply unit 304 from supplying the main power supply to the compact disc control unit 308, and controls only the standby power supply (step 208). After the television control unit 310 checks whether the user turns on the switch after the above-described step 208 (step 210), if the switch is in the ON state, the television control unit 310 compares the state of the disc door with the state of the current disc door. On the contrary, open and close (step 212), and in the OFF state, the switch is continuously checked until it is turned on.

After the switch is turned on, the TV control unit 310 checks whether the disc door 16 is closed through the compact disc control unit 308 (step 250). If the door is not closed, the door is opened, so that the door is closed. The signal is supplied at a low level to the compact disc controller 308, and the door controller 306 closes the disc door 16 in the compact disc player 34 under the control of the compact disc controller 308 (Step 252). step). The television control unit 310 continuously checks the door state signal to confirm whether the door is closed (step 254), and stores the low level in the door variable (step 256) if the door is securely closed (step 256). ) Cuts main power to the compact disc controller 308, and controls to supply standby power (step 258).

On the other hand, when the door is closed after step 250, the television control unit 310 controls the compact disc power supply unit 304 to supply the main power to the compact disc control unit 308 (step 260), and after the power is supplied. The compact disc controller 308 waits for the settling time to become stable (step 262). This is because an error may occur if the next step is performed before stabilization.

After step 262, the television control unit 310 controls the compact disc controller 308 to open the door by setting the door control signal to a high level (step 264), and after confirming whether the door state signal is high level after the step 264, The variable is stored at a high level (step 266). After the door is opened, the TV control unit 310 checks whether the switch control signal (the control signal generated when the user turns on the switch to change the state of the door) is input through the IN terminal shown in FIG. And step 268), if the switch control signal is input, prepare for changing the opening / closing of the door as follows (step 226), i.e., if the door state signal is again high (step 270) and still high level; The door variable is set to a high level (step 272), and if it is low after confirmation, the door variable is stored at a low level (step 274) After the above-described steps 272 and 274, the flow proceeds to step 250 to perform the next step.

If the switch is not turned on in step 268, the television control unit 310 inputs a door state signal, and if it is at a low level, the television control unit 310 determines that the user has closed the door directly, and proceeds to step 256. The state of the switch is continuously checked until it is turned on (step 276).

As described above, in the present invention, the compact disc player integrated television receiver can be inserted and ejected without turning on the power in the standby state, and when the disc is ejected and inserted, the power is automatically shut off after the disc door is closed. Since the power consumption is reduced, the compact disc controller does not directly connect the user, but connects through the TV control unit, thereby preventing the electrostatic problem that may occur from the user.

Claims (6)

In the compact disc player integrated television receiver, the method for controlling the power supply of the disc door and the compact disc player unit is to determine whether the power signal of the compact disc player unit is supplied, and if it is not supplied, the first judgment for continuously checking the power supply. Step 2, the second judging step of determining whether the door status signal indicating the opening and closing of the door is the first level after the first judging step is satisfied, and if the second judging step is not satisfied, instructing opening and closing of the door A variable control step for setting the variable to be the second level and the second determination step is satisfied, and the switch control signal for changing the opening and closing of the door after the variable determination step is inputted. Satisfies the third judging step and the third judging step if the input is not satisfied. And a door control step of opening and closing the disc door in a reverse state to a current state, and blocking a power signal of the compact disc player unit after the door is in a first state. The method of claim 1, wherein the door control step comprises: a fourth determination step of determining whether the variable is the first level, a first door control step of bringing the door to a second state if the fourth determination step is satisfied; A fifth judging step of judging whether the switch control signal has been input after a first door control step; if the fifth judging step is satisfied, determining the door state signal and the value of the variable to open and close the door; A sixth determination step of proceeding to the fifth determination step if it is not satisfied by determining whether the door is in a first state directly by the user if the door opening preparation step of proceeding to the determination step and the fifth determination step are not satisfied; If the fourth judging step is not satisfied or the sixth judging step is satisfied, the door is placed in the first state, and a power difference that cuts off a power signal of the compact disc player unit. Disk door control method comprising the steps: 3. The method of claim 2, wherein the first door control step comprises: a power supply step of supplying the power to the compact disc player unit; a standby state waiting for the compact disc player unit to become stable after supplying the power; And a second door control step of bringing the door to the second state after the disc player unit is stabilized, and a first variable change step of setting the variable to the second level after the second door control step. Control method. The method of claim 2, wherein the preparing for opening / closing the door sets the variable to the second level when the seventh judging step for determining whether the door state signal is the second level and the seventh judging step is satisfied. And a second variable switching step of proceeding to the fourth judging step by setting the variable as the first level. 3. The method of claim 2, wherein the power off step comprises: closing the door to the first state if the fourth judging step is not satisfied; and determining whether the door state signal is the first level after the door close step. If not satisfied, the eighth judgment step of continuously checking the door state signal, the third variable conversion step of setting the variable to the first level after the eighth judgment step is satisfied, after the third variable conversion step And controlling a power signal of the compact disc player unit. A compact disc player integrated television receiver comprising a compact disc player and a television, comprising: power means for supplying main power and standby power to the compact disc player and the television, and controlling opening and closing of a door for inputting a disc of the compact disc player; A compact disc control means for generating a door control means and a door state signal indicating opening and closing of the door, inputting a door control signal for opening and closing the door, controlling the door control means, and controlling the entire compact disc player; And checking whether power is supplied to the power supply means, inputting a switch control signal generated by a user to change the opening and closing of the door, generating the door control signal by inputting the door state signal, Standby power is selectively And a television control means for controlling the power supply means to be supplied to a conventional compact disc player, and for controlling the whole of the television.