KR20040096088A - Television having monitor control unit - Google Patents

Abstract

PURPOSE: A television having a monitor switching control unit is provided to dispose switches on front ends of a video signal processor and an audio signal processor, respectively, and to perform a switching control function, thereby selectively controlling a cut-off of video or sound. CONSTITUTION: A television receiver(51) receives selected television signals, detects a video signal and an audio signal, and outputs the detected signals. A video signal processor(53) processes the video signal, and outputs a driving signal for monitor driving according to the processed signal. An audio signal processor(55) processes the audio signal, and outputs a driving signal for speaker driving according to the processed signal. A power unit(57) receives an AC power to generate a television power signal and a monitor heating voltage signal. A television controller(59) outputs a switching signal of a monitor or a speaker by a control signal. A monitor switching control unit(61) performs a monitor switching function, and is connected to a microprocessor(591) to receive control signals(X1,X2).

Description

Television with monitor switching control unit

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a television having a monitor switching control unit, and more particularly to a television having a monitor switching control unit capable of responding to user preferences and selectively blocking control of an image or sound to prevent power waste.

Let's take a quick look at the existing television configuration here.

1 is a control circuit block diagram schematically showing a conventional television configuration. As shown in Fig. 1, a conventional television is provided with a signal processor 11 for receiving a largely tuned television signal and detecting and outputting a video signal and an audio signal separately from the received signal, and from the signal processor 11; A video signal processor 13 for processing a transmitted video signal and outputting a drive signal for driving a monitor according to the processed signal, and a monitor 15 in which a display is implemented by a drive signal of the video signal processor 13. And an audio signal processor 17 for processing the audio signal transmitted from the signal processor 11 and outputting a driving signal for driving the speaker according to the processed signal, and the driving signal of the audio signal processor 17. A speaker 19 through which sound is expressed, a microprocessor 21 for controlling the entire television system, and the microprocessor A key input unit 23 connected to the parser 21 to support external input by a user, a memory 25 for storing or temporarily storing operating programs and control signals of a television system, and a remote control transmitter 27 The remote control receiver 29 connected to the microprocessor 21 so as to control the television by the remote signal transmitted from the control panel, the control signal from the remote control transmitter 27 and the control signal of the key input unit 23. Switching is made by the switch, and is connected between the signal processor 11 and the audio signal processor 17 is composed of a speaker switching switch 31 for switching the audio signal, that is, a sound muting function.

As described above, the conventional television adds a function of canceling audio sound by the speaker switching switch 31, but there is no configuration capable of turning off the video image, so that the sound is not outputted. For example, if you only want to listen to music had a disadvantage that does not support this feature.

Accordingly, an object of the present invention is to provide a monitor switching control unit that can selectively block and control the image or sound by providing a switch in front of the video signal processing unit and the audio signal processing unit, respectively, in order to solve the above problems To provide a television.

1 is a control circuit block diagram schematically showing a conventional television configuration;

2 is a block diagram of a television control circuit having a monitor switching control unit according to an embodiment of the present invention.

Explanation of symbols on the main parts of the drawings

51: TV receiver 53: Video signal processor

55: audio signal processor 57: power supply

59: television control unit 61: monitor switching control unit

63: key input section 65: remote control transmitter

67: LED

A television having a monitor switching control unit of the present invention for achieving the object of the present invention comprises: a television receiver for receiving a tuned television signal and detecting and outputting a video signal and an audio signal from the received signal; A video signal processor for processing a video signal transmitted from the television receiver and outputting a driving signal for driving a monitor according to the processed signal; An audio signal processor which processes the audio signal transmitted from the television receiver and outputs a driving signal for driving the speaker according to the processed signal; A power supply unit receiving AC power in response to the power control signal to generate a television power signal Vtv and a monitor heating voltage signal Vm, respectively; A television control unit for controlling the entire television system and outputting a switching signal of a monitor or a speaker by a key input unit formed outside and a control signal transmitted from a remote control transmitter; And a monitor switching control unit formed between the television receiver and the video signal processing unit to perform a monitor switching function. At this time, it is preferable to further form a speaker switch to be formed between the television receiver and the audio signal processor to perform a speaker switch function. Here, it would be further desirable to form a notifying means for informing the state when the speaker switching switch and the monitor switching control unit both maintain the off state.

Hereinafter, with reference to the accompanying drawings will be described a preferred embodiment of the present invention.

2 is a block diagram of a television control circuit having a monitor switching control unit according to an embodiment of the present invention. As shown in Fig. 2, a television having a monitor switching control unit of the present invention is largely a television receiver 51, a video signal processor 53, an audio signal processor 55, a power supply 57, and a television controller 59. And a monitor switching control unit 61 which is a feature of the present invention. The key input unit 63 and the remote control transmitter 65 are provided in the same manner as the conventional configuration. On the other hand, as the monitor is off in the present invention, when there is a sound mute, a separate notification means 67 for notifying the TV driving state may be further mounted.

Here, the key input unit 63 and the remote control transmitter 65 has a configuration capable of a normal button input, it can be configured to enable input by direct input or mode selection. On the other hand, the notification means 67 uses a control algorithm for notifying that the TV is on by using the LED or by turning on / off the monitor at regular intervals when both the monitor and the speaker are turned off. It may be.

A general description of each function of the above configuration is as follows.

First, the television receiver 51 receives the tuned television signal, detects and outputs a video signal and an audio signal from the received signal. The video signal processor 53 processes the video signal transmitted from the television receiver 51 and outputs a drive signal for driving the monitor according to the processed signal. The audio signal processor 55 processes the audio signal transmitted from the television receiver 51 and outputs a drive signal for driving the speaker according to the processed signal. The power supply unit 57 receives AC power in response to the power control signal to generate the television power signal Vtv and the monitor heating voltage signal Vm, respectively. The television control unit 59 controls the entire television system, and outputs a switching signal of the monitor or the speaker by control signals transmitted from the key input unit 63 and the remote control transmitter 65 formed outside. As a feature of the present invention, a monitor switching control unit 61 is further provided, wherein the monitor switching control unit 61 is formed between the television receiver 51 and the video signal processor 53 to monitor switching function. It is connected to the microprocessor to receive the control signals (X1, X2) for performing this switching function. Here, the control signal (X1) is a signal output to control the monitor in response to the signal transmitted from the remote control transmitter 65, the control signal (X2) is a signal transmitted from the key input unit 63 formed outside This signal is output in correspondence with.

Some of the configurations in the above configuration will be described in detail.

First, the video signal processor 53 may include a comb filter 531 for separating a video signal into a color signal and a luminance signal, and a color / luminance signal X5 separated from an S-VHS signal such as a video that may be input from an external connection jack. A selector 533 for selecting a signal, an RGB signal processor 535 for performing synchronous separation, luminance signal processing and color signal processing, and generating a processed RGB output, and inputting the processed RGB signal to display an image on a monitor And a monitor driver 537 and a monitor 539.

The audio signal processing unit 55 includes a speaker switching switch 551 which is switched by the control signals X3 and X4 of the microprocessor, and an amplifier 553 which amplifies the audio signal transmitted from the television receiver 51; And a surround processor 555 which is selectively provided to perform stereoscopic sound processing on the audio signal, a speaker driver 557 for driving the speaker, and a speaker 559 for sound output. Here, the control signal (X3) is a signal output to control the speaker 559 in response to the signal transmitted from the remote control transmitter 65, the control signal (X4) from the key input unit 63 is formed externally The signal is output in correspondence with the transmitted signal.

The power supply unit 57 receives the commercial AC voltage and supplies the standby power supply voltage to the television control unit 59, the television receiver 51, the video signal processing unit 53, and the audio signal processing unit 55. And a constant voltage generator 573 for generating various power supply voltages to be used. In particular, the monitor heating voltage signal Vm is supplied to the monitor 539, and power is not supplied to the monitor 539 by the heating voltage signal while the monitor 539 is turned off. This heating voltage signal is generated by the control signals transmitted from the key input unit 63 and the remote control transmitter 65.

The television control unit 59 basically outputs a control signal for realizing an image and sound, and corresponds to an input signal from the key input unit 63 and the remote control transmitter 65 and the speaker switching switch 551 and the present invention. And a microprocessor 591 in which switching control (X1 to X5) of the monitor switching control unit 61 is performed, and a remote control receiver 593 for receiving data transmitted from the remote control transmitter 65.

The television operation with the monitor switching control unit 61 of the present invention configured as described above will be described schematically.

When a television signal transmitted from a broadcasting station is received through an antenna, tuning is performed corresponding to a channel selected by a user. The television signal tuned in this way is separately outputted from the television receiver 51 into an image and a sound. Thereafter, the image is outputted to the monitor 539 via the video signal processor 53, and the sound is outputted to the speaker 559 via the audio signal processor 55. The video and sound are synchronized and output by the usual process, and the process is repeated whenever the channel selection signal of the user is input.

At this time, when the user inputs the sound muting control signal through the remote control transmitter 65 or the key input unit 63, the speaker output switch 551 is turned off in the microprocessor 591 to cancel the sound output. .

Alternatively, when the user inputs an image erasing control signal to be performed in the present invention through the remote control transmitter 65 or the key input unit 63, the microprocessor 591 turns off the monitor switching control unit 61 to erase the image output. Will be made.

On the other hand, if the user wants both sound mute and image mute, the microprocessor 591 displays the image erasing control signal at a predetermined time interval, that is, the monitor 539 is turned on at a predetermined interval to display that the television is driven. The same process can be applied to the speaker 559, and informs the user by sound output that the TV is driven. Here, in addition to the method of notifying the TV driving state by the switching control of the monitor 539 at a predetermined time, a separate display method such as the LED 67 may be used.

In the present embodiment, a case in which the monitor 539 and the speaker 559 are separately controlled is described. However, the monitor switching control unit 61 and the speaker switching switch 551 may be manufactured as a single integrated module. The configuration can be simplified.

As described above, the television having the monitor switching control unit according to the present invention can respond to the user's preference by outputting and erasing an image or sound. In addition, when the image is muted, power is cut off to the monitor, thereby preventing power wastage. The present invention is not limited to the above-described embodiment, and it will be apparent that many modifications are possible by those skilled in the art within the technical spirit of the present invention.

Claims (3)

A television receiver which receives a tuned television signal and detects and outputs a video signal and an audio signal from the received signal; A video signal processor for processing a video signal transmitted from the television receiver and outputting a driving signal for driving a monitor according to the processed signal; An audio signal processor which processes the audio signal transmitted from the television receiver and outputs a driving signal for driving the speaker according to the processed signal; A power supply unit receiving AC power in response to the power control signal to generate a television power signal Vtv and a monitor heating voltage signal Vm, respectively; A television control unit for controlling the entire television system and outputting a switching signal of a monitor or a speaker by a key input unit formed outside and a control signal transmitted from a remote control transmitter; And A monitor switching control unit formed between the television receiver and the video signal processing unit to perform a monitor switching function. Television having a monitor switching control unit, characterized in that made. The television set having a monitor switching control unit according to claim 1, further comprising a speaker switching switch formed between the television receiver and the audio signal processor to perform a speaker switching function. 3. A television having a monitor switching control unit according to claim 2, further comprising a notifying means for informing a status when both the speaker switching switch and the monitor switching control unit maintain the off state.