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Programmable infrared remote control method and its circuit

A technology of infrared remote control and remote control circuit, which is applied in non-electrical signal transmission systems, signal transmission systems, instruments, etc.

Inactive Publication Date: 2006-08-23
SHENZHEN SKYWORTH RGB ELECTRONICS CO LTD
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  • Summary
  • Abstract
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  • Claims
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Problems solved by technology

However, there has not been a programmable infrared remote control method so far, that is, an electrical appliance can decode various types of remote control codes sent by different types of remote controls received, and store these types of remote control codes according to user needs. , including its boot code, user identification code, data code, and the method of sending these types of remote control codes to control other electrical appliances according to user programming settings

Method used

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  • Programmable infrared remote control method and its circuit

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Embodiment Construction

[0034] A method and circuit for implementing programmable infrared remote control on two kinds of electrical appliances with video function, color TV set and set-top box

[0035] The programmable infrared remote control circuit as shown in the accompanying drawing includes an electrical mainboard with a microcontroller MCU chip U1 with an external interrupt port, and an infrared remote control signal that is connected to the MCU chip U1 and integrates infrared reception, amplification and shaping. Receiving head D2, and infrared remote control signal transmitting tube D1.

[0036] The MCU chip U1 is an MCU chip of the 8051 core series. Its function is to determine the type of remote control code that can remotely control a certain electrical appliance according to the boot code information of the remote control code, and can call the corresponding decoding program for the type of remote control code. Decoding processing is performed to obtain decoded information.

[0037] The...

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Abstract

This invention discloses a programmable infrared remote control method and its circuit, in which, a master electric appliance sends an infrared remote control signal received and processed to a MCU chip from an outer interrupt port of the MCU chip for decoding process to get the remote control codes and stores them into the EEPROM chip in terms of designed code number, when a user needs to remote control another appliance, it can read a related remote control code, an idle I / O port of the MUC chip simulates the level time sequence signals of the code and the other port generates infrared carrier signals cooperated by a timer then to send the modulated remote control signal to an infrared emission tube to be emitted, therefore, the master appliance can control other appliances accurately and reliably.

Description

technical field [0001] The invention relates to a remote control method for electrical appliances, in particular to a programmable infrared remote control method and a circuit thereof. Background technique [0002] Infrared remote control is currently the most widely used means of communication and remote control. Because the infrared remote control device has the characteristics of small size, low power consumption, strong function, and low cost, it follows the color TV set and video recorder. Infrared remote control is widely used in tape recorders, audio equipment, air conditioners, toys and other electrical appliances. As for industrial equipment operating in high-voltage, radiation, toxic gas, dust and other environments, infrared remote control is also used, which is not only completely reliable, but also can effectively isolate electrical interference. With the increase and centralized use of electrical appliances, their work needs coordination, unified control, and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08C23/04
Inventor 白骥郭敏强黄黎明徐勇何彦许雪松
Owner SHENZHEN SKYWORTH RGB ELECTRONICS CO LTD
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