KR100267984B1 - Power saving tv - Google Patents

Abstract

PURPOSE: A power saving type TV is provided to turn on a power of a signal field, and to turn off a power of a deflection field when an inputted signal does not exist. Therefore, it is possible to reduce power consumption. CONSTITUTION: A signal field(50) receives a received signal, and detects horizontal/vertical synchronous signals to perform an image process. A deflection field(60) receives the signals from the signal field(50), and drives a CPT(Color Picture TV) to control a screen. A signal field power supplier(70) supplies a power necessary for the signal field(50). A deflection field power supplier(80) supplies a power necessary for the deflection field(60). A microcomputer(90) selectively controls the signal field power supplier(70) and the deflection field power supplier(80).

Description

Power saving TV

The present invention relates to a power-saving TV, and more particularly, to a power-saving TV that can reduce power consumption when there is no input signal by differently setting the operation of the power supply unit according to the presence or absence of an input signal.

In general, a power-saving TV is a TV that can receive various signals with different vertical and horizontal frequencies, unlike a TV with a constant vertical and horizontal frequency of an input signal.

The input signal of the power-saving TV can be divided into two types, one is a general TV signal (video, cable TV, etc.), and the other is a PC signal (VGA, S-VGA, IBM8514).

Hereinafter, with reference to the accompanying drawings as follows.

1 is a block diagram showing a power-saving TV according to the prior art.

Referring to FIG. 1, a signal system 10 for receiving a received signal and processing a signal, and a color picture TV (not shown) are driven using a signal processed by the signal system 10 to display a screen. A deflection meter 20 for deflecting a video signal, a power supply unit 30 for supplying power to the signal system 10 and the deflection meter 20, the signal system 10, a deflection meter 20, and a power supply unit ( And a microcomputer 40 for outputting a control signal to 30).

The signal system 10 includes a tuner 11 for converting a received signal into a baseband signal, a synchronization separator 12 for separating a horizontal / vertical synchronization signal among video signals received from the tuner 11, and the synchronization. An image processing section 13 for processing horizontal / vertical synchronization signals in the separation section 12 and a PC input section 14 are provided.

In this configuration, the power-saving TV outputs a video signal of the tuner 11 to the deflection meter 20 by separating the horizontal and vertical synchronization signals through the synchronization separator 12, and transmits the reference signal to the microcomputer 40. It is used to control the OSD implementation and others.

Multi-sync TV according to the prior art has the following problems.

First, when the user turns on the TV, the power supply is always driven regardless of the presence of an input signal, and thus power is greatly supplied to the signal system and the deflector.

Second, there is a disadvantage in that the TV receiver is turned on after sufficient time to heat the heater of the CPT (Color Picture TV) when the power is turned on in the standby mode.

The present invention has been made to solve the above problems, and to provide a power-saving TV that can be switched to the power saving mode when there is no horizontal synchronization signal and mouse input by installing a signal power supply and a deflector power supply respectively. have.

1 is a block diagram showing a power-saving TV according to the prior art

2 is a block diagram showing a power saving TV according to the present invention.

3 is a flow chart showing a power saving method of the power saving TV according to the present invention.

Explanation of symbols for main parts of the drawings

50: signal meter 51: tuner

52: sync separation unit 53: image processing unit

54: PC input unit 60: deflection meter

70: signal system power supply 80: deflection meter power supply

90: micom

The present invention relates to a power-saving TV, and receives a signal received from a satellite to detect a horizontal / vertical synchronization signal, and then processes a signal system and an image signal processed by the signal system to drive a color picture TV (CPT). A deflector for adjusting the screen to be visible, a signal system power supply for supplying power for the signal system, a deflector power supply for supplying power for the deflector, the signal system, a deflector, a signal power supply, and a deflector. It is composed of a microcomputer that controls all of the system power supplies.

Hereinafter, with reference to the accompanying drawings as follows.

2 is a block diagram showing a power saving TV according to the present invention, Figure 3 is a flow chart showing a power saving method of the power saving TV according to the present invention.

Referring to FIG. 2, the present invention includes a signal system 50, a deflection meter 60, a signal system power supply 70, a deflection meter power supply 80, and a microcomputer 90.

The signal system 50 includes a PC input unit 54, a tuner 51 for converting a signal received from a satellite into a baseband signal, and a synchronization for detecting a horizontal / vertical synchronization signal from a signal input from the tuner 51. The detection unit 52 and the image processing unit 53 for receiving a synchronization signal detected by the synchronization detection unit 52 or a signal output from the PC input unit 54 and processing the image.

The microcomputer 90 outputs a control signal to the signal system power supply 70 and the deflector power supply 80 through the first and second ports POWER1 and POWER2, and the signal system 50 and the deflector 60 ).

The signal system power supply unit 70 receiving the control signal from the microcomputer 90 outputs the signal system power and the heater power, the signal system power is input to the signal system 50, and the heater power is input to the deflector 60. . In addition, the deflector power output from the deflector power supply unit 80 is input to the deflector 60.

Although not shown in the drawing, the deflection meter 60 includes a horizontal deflection circuit and a vertical deflection circuit, and the deflection meter power supply unit 80 includes power supplied to the horizontal deflection circuit and power supplied to the vertical deflection circuit. And flyback transformers (FBT).

The power-saving TV configured as described above determines whether or not an input signal is present in the microcomputer 90, and outputs a high signal to the first port POWER-1 in the microcomputer 90 if there is no input signal according to the determination result. Then, the signal system power supply 70 is "on", and a deflection meter power supply 80 is "off" by outputting a low signal to the second port (POW-2).

Therefore, the power consumption can be reduced by turning off the deflection meter power source that consumes most of the power of the power-saving TV receiver when there is no input signal.

That is, unlike conventional power-saving TVs having two modes, a standby mode and an on mode, in the present invention, the "standby mode" for turning off both the signal system and the deflector power source, and the "signal mode power supply for turning on the deflector power source" It has three power modes: power saving mode, and "on mode" to turn on the signal and deflector power at the same time.

In the power saving method of the power saving type TV configured as described above, as shown in FIG. 3, it is determined whether the TV mode is used (S1). If it is not the TV mode according to the determination result, it is determined whether the PC (PC) mode (S2).

According to the determination result, it is determined whether or not there is a horizontal synchronous signal in the TV mode (S3).

In the "on mode" processing step, the microcomputer outputs a high signal to the signal system power supply and the deflector power supply (S51), and receives the high signal to turn on both the signal system and the deflector ( S52).

In the PC mode, it is determined whether the horizontal synchronization signal is present (S4). If the horizontal synchronization signal is present, it is determined whether the keyboard or the mouse has moved for a predetermined time (S5).

If there is no movement of the keyboard or mouse, the process goes to the "sleep mode" processing step (S7).

The " power saving mode " processing step (S7) displays a signal input message for several seconds on the OSD screen (S71), and at the microcomputer "high" to the signal system power supply, and "low" to the deflector power supply. Outputs (S72).

The signal system receiving the "High" signal is turned on, and the deflectometer receiving the "Low" signal is turned off (S73).

In this way, it is determined whether the current input signal is a TV signal or a PC signal, and if the TV signal is a horizontal synchronization signal input to the microcomputer.

If it is determined that there is a horizontal synchronizing signal, the microcomputer outputs high to the first port (POW-1) and the second port (POW-2) so that both the signal power supply and the deflector power supply are "on". The signal currently input to the TV receiver is shown.

In addition, if there is no horizontal synchronizing signal, "high" is output to the first port (POW-1) and "low" to the second port (POW-2) so that the signal system power supply unit is "on" and the deflector power supply The supply unit is "off" to perform the power saving mode.

Therefore, when the TV receiver is set in the power saving mode, the presence or absence of a signal is again determined at a predetermined interval. If there is no signal, the power receiver is continuously in the power saving mode, and when there is a signal, the receiver is turned on and the receiver is turned on.

If it is not a TV signal but a PC signal, first determine whether there is a horizontal synchronous signal, and if there is no horizontal synchronous signal, switch to power saving mode, and even if there is a horizontal synchronous signal, use a mouse or a It is determined whether the movement of the keyboard has been absent for a certain time.

If there is no movement of the mouse or keyboard, it also switches to the power saving mode to reduce power consumption by turning on the monitor when there is no use of the PC user.

Power-saving TV according to the present invention has the following effects.

First, turn off the deflector power, which is the most power consumed by the TV set, by installing the signal power supply and the deflector power supply separately, and turning on the signal power only when there is no input signal. In the absence of an input signal, power consumption can be significantly reduced.

Second, when using a power-saving TV receiver as a PC monitor, you can switch to the power saving mode just like a monitor.

Third, since the heater power is included in the signal power supply, the screen change is quick even if the signal is suddenly changed.

Claims (6)

A signal system that receives a received signal and detects a horizontal / vertical synchronization signal and then processes the image; A deflector that receives the image processed signal from the signal system and drives a CPT (Color Picture TV) to adjust the screen to be visible; A signal system power supply unit for supplying power required for the signal system; A deflector power supply unit for supplying power to the deflector; Power saving TV, characterized in that consisting of a microcomputer for selectively controlling the signal system power supply and the deflector power supply. The method of claim 1, The signal system power supply unit power-saving TV, characterized in that for outputting the signal system power and heater power. The method according to claim 1 or 2, The signal system power is supplied to the signal system, heater power is characterized in that the power supply to the deflection meter TV. In the power saving method of the power-saving TV equipped with a signal system power supply, a deflector power supply, a microcomputer, Determining whether the TV mode; Determining whether the horizontal synchronization signal is detected in the TV mode according to the determination result; If the horizontal synchronization signal is present according to the determination result, processing in the "on mode"; Determining whether the PC mode is the TV mode according to the determination result; Determining whether a horizontal synchronization signal is present in the PC mode according to the determination result; Determining whether there is no movement of the keyboard or mouse for a predetermined time when there is a horizontal synchronization signal according to the determination result; If there is no movement of the keyboard or the mouse according to the determination result, the step of processing in the "sleep mode", characterized in that the power saving method of the TV. The method of claim 4, wherein The "on mode" processing step may include: outputting "high" from the microcomputer to the first port (POW-1) and the second port (POW-2); And "on" the signal system power and the deflectometer power supply receiving the "high" signal at the same time to process the power saving power TV. The method of claim 4, wherein The processing of the power saving mode may include requesting a signal input for a predetermined time; Outputting, by the microcomputer, the first port (POW-1) to "high" and the second port (POW-2) to "low"; And a signal system power supply that receives the "high" signal "on" and a deflector power supply that receives the "low" signal "off" to process the power.