Circuit and method for managing standby and complete machine powering of television set

A management method and technology for managing circuits, which are applied to the standby and power-on management methods and circuits of TV sets, can solve the problems of screen flicker and abnormal images on the display screen, improve image output quality, avoid screen flicker, Realize the effect of timing switch function

Active Publication Date: 2008-08-27
HISENSE VISUAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a TV stand-by and complete machine power-on management method to solve the problems of screen flicker and abnormal images on the display screen when the TV is turned on

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  • Circuit and method for managing standby and complete machine powering of television set
  • Circuit and method for managing standby and complete machine powering of television set
  • Circuit and method for managing standby and complete machine powering of television set

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Embodiment Construction

[0022] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0023] The television standby system of the present invention is mainly composed of the following parts: a button circuit, a remote control circuit, a real-time clock circuit and a sub-MCU chip. In the original TV system, key signals, remote control signals, real-time clocks, and control signals to the display screen when the TV starts are all connected to the main processor of the TV. In the TV system of the present invention, the external button remote control and timing are all regarded as external interrupt signals, and the external information is obtained through the secondary MCU chip, and then the connection and communication with the main processor are realized. For its system block diagram, see figure 1 shown.

[0024] figure 1 Among them, EM8624L is the main processor that powers on after the TV is turned on, and Atmega48 ...

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Abstract

The invention discloses a management method for the stand-by and the complete machine electrification of a television. The method adopts the following components: a main processor which is electrified to work after the television is turned on and an auxiliary MCU chip for maintaining the electrification work during the stand-by of the television, wherein, after receiving the turn-on command signal, the auxiliary MCU chip outputs a control signal and controls the complete machine electrification work of the television, and controls the turn-on display of the display screen after a period of time delay. The delay time is equal to the running time of the built-in initialization program of the main processor. The invention simultaneously discloses a management circuit for the stand-by and the complete machine electrification of a television, through the full use of the auxiliary MCU chip charged for receiving the turn-on command in the prior television circuit, the auxiliary MCU is simultaneously used as the electrification time sequence control unit of the display screen, thereby, phenomena of screen flash and image abnormality due to the uncontrollability of the display screen during the electrification initialization of the main processor, therefore, the image output quality is effectively improved.

Description

technical field [0001] The invention belongs to the technical field of televisions, and relates to a television standby and complete machine power-on management method and circuit. Background technique [0002] With the continuous development of technology, the functions of many TV sets are becoming more and more complex, resulting in a larger and larger TV system. The current TV has evolved from the 4-bit machine and 8-bit machine a few years ago to the current SOC embedded system. Most of the current embedded systems run the Linux operating system, so it is very difficult to make such a large-scale system standby with low power consumption. When the machine is in standby, it can receive the remote control start signal and button start signal, and then realize the management of the power supply of the whole machine. With this circuit design method of the main and sub-processors, the main processor can be completely powered off and shut down when it is in standby mode. Co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/63
Inventor 郑华磊邢胜春
Owner HISENSE VISUAL TECH CO LTD
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