KR19990028829U - TV protection device in case of power failure - Google Patents

Abstract

The present invention relates to a device for protecting time data of a television, comprising: time data storage means (24) for maintaining and storing time data provided for functions related to various timers, and connected to an external power supply line for each circuit of the television; The power supply unit 26 supplies the standby power only to the necessary portion when the operation switch is turned off and the necessary power is supplied. When the power is supplied from the power supply unit 26 and the power supply is cut off from the outside, a predetermined direct current is applied. The battery 28, which is to supply power, is controlled to supply power to the time data storing means 24 selectively from the power supply 26 and the battery 28 depending on whether power is supplied from the outside. It is composed of a microcomputer 16, when the power supply is cut off from the power failure or from the outside by the power supplied from the battery as an auxiliary power supply means By maintaining the stored data to time that is effective to promote a user's convenience.

Description

A device for preserving the time data of television

The present invention relates to a time data protection device for a television, and more particularly, to a time data protection device for a television such that the time data set on the television is maintained without being reset even when the standby power is cut off.

The configuration of a general television is as shown in the schematic block diagram shown in FIG. 1, the image receiving circuit 100, the synchronous deflection circuit 200, the water pipe 300, the audio receiving circuit 400 and the speaker 500. It consists of.

Here, the image receiving circuit 100 selects and amplifies the channel radio wave received from the antenna 110 to convert the signal frequency into an intermediate frequency and outputs the tuner 120 and the intermediate frequency signal output from the tuner 120. An intermediate frequency amplifier circuit 130 for amplifying an image output to increase an image output, an image detector circuit 140 for obtaining a composite image signal from an image intermediate frequency signal of an amplitude modulated signal from the intermediate frequency amplifier circuit 130, and the image detector An image amplification circuit 150 for amplifying the luminance signal from the composite image signal obtained from the circuit and then separating the amplified signal, the carrier color signal, the synchronization signal, and the color buster, respectively, and outputting them to the next stage; The luminance signal amplified by the color reproduction circuit 160 and the image amplification circuit 150 and the color difference signal obtained by the color reproduction circuit 160 are converted into R, G and B signals. And comprises a matrix 170 for outputting to said kinescope (300).

In this case, the synchronous deflection circuit 200 includes a synchronous separation circuit 210 for obtaining horizontal and vertical synchronous signals from a luminance signal, and a vertical deflection circuit for applying saw blades of 60 Hz to the vertical deflection coils of the water pipe 300 ( 220) and a horizontal deflection circuit 230 for applying a saw blade wave of 15750 Hz to the horizontal deflection coil of the water pipe 300.

In addition, the voice receiver circuit 400 includes a voice intermediate amplifier circuit 410 for amplifying a voice intermediate frequency signal, an FM detector 420 for obtaining a low frequency signal from the voice intermediate frequency, and a weak signal from the FM detector 420. The audio amplifier 430 is configured to output a low frequency signal by amplifying power and outputting the volume to the speaker 500.

In such a conventional TV configuration, the on time and sleep time of the television are compared and operated by the time data set therein.

However, when a power plug is inserted into an outlet to which an external power source is supplied, the standby data of a constant voltage continues to flow even when the operation switch of the television is turned off. The On Time or Sleep Time function, which reads data using the time data, works properly.However, if there is a power outage or the power plug is disconnected from the outlet, the standby power of the TV will not be supplied. Therefore, when the user supplies power again, there is a problem in that the time data must be reset as a whole.

The present invention has been made to solve the above-mentioned problems, and to provide a time data protection device for a television that can maintain the time data even when the power supply to the TV is cut off.

The apparatus for protecting time data of a television of the present invention for achieving the above object comprises a time data storage means for maintaining and storing time data provided for functions related to various timers, and connected to an external power supply line. It supplies the power required for each circuit and when the operation switch is turned off, the power supply unit supplies standby power only to the required part, and the predetermined DC power supply when the power is supplied from the power supply unit and the power supply is cut off from the outside. The battery, characterized in that consisting of a microcomputer to control to supply power to the time data storage means selectively from the power source and the battery depending on whether the power is supplied from the outside.

According to the present invention having the above-described configuration, when power is not properly supplied from the outside, the stored time data is maintained by supplying power to the time data storage means from the built-in battery, and the power is turned on again. In this case, the user does not set the time data separately.

1 is a block diagram showing the configuration of a typical television;

2 is a block diagram showing the configuration of a television according to the present invention.

* Explanation of symbols for main parts of the drawings

10 Tuner 12 IF filter

14 Video Processor 16 Microcom

18 ... OSD 20 ... Video Switch

22 ... The Officer 24 ... Time Data Storage

26. Power supply 28. Battery

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

Figure 2 is a block diagram showing an embodiment according to the present invention, converts the high-frequency radio signal received through the antenna to the image intermediate frequency signal by selecting a channel according to the tuning signal, and output frequency in accordance with the automatic fine-tuning signal Tuner 10 to be variable, IF filter 12 to pass the intermediate frequency band, amplified and demodulated after inputting the intermediate frequency signal, and processed by demodulated image signal according to the user's control data Red Green Blue (RGB) video The video processor 14 detects and processes vertical and horizontal synchronous signals, and outputs a preset signal for selecting a broadcast channel according to a user's key operation and user control data for adjusting the reproduced image quality. OSD 18 for outputting a red and green (RGB) signal for displaying a character on a screen according to the microcomputer 16 and the control signal of the microcomputer 16, the red recording of the video processor 14 (RGB) and the video switch 20 for switching the red and green (RGB) signal of the OSD 18, the red and blue (RGB) output of the video switch 20 to the water pipe 22 to display the screen Is done.

In addition, the time data storage means 24 maintains and stores time data provided to functions related to various timers, and is connected to an external power supply line to supply power required for each circuit of the television, and the operation switch is turned off. And a power supply unit 26 for supplying standby power only to necessary portions, and a battery 28 for supplying a predetermined DC power when the power supply is charged from the power supply unit 26 and the power supply is cut off from the outside. It is supposed to be.

At this time, the time data storage means 24 is configured to receive power from the power supply 26 and the battery 28, respectively, the power required from the power supply 26 under the control of the microcomputer 16 as usual When the power supply is supplied to the microcomputer 16, the microcomputer 16 is supplied with the necessary power from the battery 28 to continuously protect the time data.

The power supply unit 26 receives power from the outside to supply commercial power and constant voltage power for various circuits, and when the television is not operated, standby power is supplied to the microcomputer 16 and the time data storing means 24. It is designed to have a power saving function while maintaining the basic functions of a television.

On the other hand, the power supply unit 26 is provided with a battery 28 as an auxiliary power supply means for supplying the power required for the time data storage means 24 in the case of power failure or external power is cut off, the battery ( 28 is capable of charging so that the power supply unit 28 supplies power to charge the battery 28 at normal times.

As described above, the present invention provides time data by supplying power from a battery, which is an auxiliary power supply, to time data storage means for storing various time data necessary for various time-related functions when the external power supplied to the television is cut off. By maintaining it, the user can reduce the inconvenience of resetting the time data.

Claims (1)

The time data storage means 24 maintains and stores the time data provided to the functions related to the various timers, and is connected to an external power line to supply power for each circuit of the TV, and is required when the operation switch is turned off. A power supply unit 26 for supplying standby power only to a portion, and a battery 28 for supplying a predetermined DC power when the power supply is charged from the power supply unit 26 and the power supply is cut off from the outside. And a microcomputer (16) configured to control to supply power to the time data storing means (24) selectively from the power source (26) and the battery (28) according to whether or not the supply is made.