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Rewritable multi-system programmable infrared remote control emission circuit

An infrared remote control and transmitting circuit technology, applied in the electronic field, can solve the problems of many pins, complex peripheral circuits, high power consumption, etc., achieve low power consumption design, simple peripheral circuits, and reduce production costs

Inactive Publication Date: 2018-08-17
SHANGHAI SINOMICON ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, traditional remote control chips have problems such as many pins, complex peripheral circuits, and high power consumption.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] A rewritable multi-system programmable infrared remote control transmitting circuit, the multi-system programmable infrared remote control transmitting circuit includes:

[0039] 2 power ports, an IR output port, 12 keyboard input ports, and a keyboard input / LED output port. The programming files are generated by the remote control coding software and burned into the built-in MTP storage unit through the programmer.

[0040] The encoding method: the transmitted frame code can be completed by a combination of guide frame, user frame, segmented frame, data frame, end frame, and repeated frame, wherein the specific format of each frame can be selected through the code option, and the number of bits and code value can be defined.

[0041] The format setting: the high level and low level time of logic bit 0 / 1 can be set, and the high and low order can be set separately. The carrier frequency can be set, the range is 5KHz-60KHz, and the duty cycle is optional. Data sending ...

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PUM

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Abstract

The invention discloses a rewritable multi-system programmable infrared remote control emission circuit, which comprises two power supply ports, an IR (Infrared Ray) output port, 12 keyboard input ports and a keyboard input / LED (Light Emitting Diode) output port, wherein a programming file is generated by remote control coding software and is programmed into a built-in MTP (Media Transfer Protocol) storage unit.

Description

technical field [0001] The invention relates to a multi-system programmable infrared remote control transmitter circuit for repeated erasing and writing, which belongs to the field of electronics. Background technique [0002] Infrared remote control has a series of advantages such as simple structure, convenient manufacture, low cost, strong anti-interference ability, and high working reliability. It is the preferred remote control method for short-distance remote control, especially indoor remote control. The market is generally based on the design of the infrared remote control transmitter circuit based on the NEC protocol, and the signal collected by the keyboard is encoded with the NEC protocol. And send the signal out through the sending circuit. Many special chips for remote control transmitters use HT6221 to form a transmitting circuit. Generally, DVDs, VCDs, and stereos used in households use this encoding method. When the transmitter button is pressed, a remote c...

Claims

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Application Information

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IPC IPC(8): G08C23/04
CPCG08C23/04
Inventor 沈怿皓于涛
Owner SHANGHAI SINOMICON ELECTRONICS
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