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Infrared remote controller receiver having semiconductor signal processing device designed by only CMOS process

A technology of signal processing device and remote control receiver, which is applied in the direction of remote measurement/remote control selection device, selection device, signal transmission system, etc., and can solve the problems of general products without suitable structure and inconvenience

Inactive Publication Date: 2008-11-12
SILICON COMM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] This shows that above-mentioned existing semiconductor signal processing device obviously still has inconvenience and defect in structure and use, and urgently needs to be further improved
In order to solve the above-mentioned problems, the relevant manufacturers have tried their best to find a solution, but for a long time no suitable design has been developed, and the general product has no suitable structure to solve the above-mentioned problems. This is obviously the relevant industry. Urgent problem

Method used

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  • Infrared remote controller receiver having semiconductor signal processing device designed by only CMOS process
  • Infrared remote controller receiver having semiconductor signal processing device designed by only CMOS process
  • Infrared remote controller receiver having semiconductor signal processing device designed by only CMOS process

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Embodiment Construction

[0048] For further elaborating the technical means and effect that the present invention takes for reaching the predetermined invention purpose, below in conjunction with accompanying drawing and preferred embodiment, to its specific implementation of the CMOS semiconductor signal processing device that is used for infrared remote control receiver that proposes according to the present invention Mode, structure, feature and effect thereof are as follows in detail.

[0049] FIG. 1 is a block diagram of a conventional infrared remote control receiver.

[0050] Referring to Fig. 1, the infrared remote control receiver includes a photodiode 20, which is used to convert an optical signal into an electrical signal; a semiconductor signal processing device 10, which is used to eliminate the noise component of the electrical signal output from the photodiode, and A pulse signal corresponding to the remote control signal transmitted from a remote control transmission system is generate...

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Abstract

The invention relates to CMOS semiconductor signal process device for infrared remote receiver, comprising: a first amplifier; a variable gain amplifier; a filter; an envelope line signal detection circuit; a magnetic hysteresis comparator and an automatic gain controller, characterized in that the first amplifier comprises: a second capacitor; a third capacitor; a first operation amplifier; a mutual mode feedback circuit, a fourth capacitor; a first MOS transistor; a fifth capacitor and a second MOS transistor. CMOS semiconductor signal process device of the invention is provided with good noise reduction characteristic, capable of steadily amplifying signals when external signals exceeding a containable range are input with a smaller size, compared with the existing known semiconductor signal process device.

Description

[0001] This case is a division of the parent case with application number 03109604.2 [0002] The filing date is April 7, 2003 [0003] The name of the parent case is: Infrared remote control receiver with semiconductor signal processing device technical field [0004] The invention relates to a semiconductor signal processing device for an infrared remote control receiver (infrared remote control receiver, hereinafter referred to as IRCR), in particular to a device designed using a complementary metal oxide semiconductor (hereinafter referred to as CMOS) manufacturing process Semiconductor signal processing device. Background technique [0005] An Infrared Remote Control Receiver (IRCR) consists of a semiconductor signal processing device with an amplifier in it. The noise reduction characteristics of this amplifier are an important factor in determining the sensitivity of an infrared remote control receiver. The amplifier in the semiconductor signal processing device of...

Claims

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Application Information

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IPC IPC(8): G08C23/04H04Q9/00
CPCH04Q9/00
Inventor 金锡基成准济姜根淳
Owner SILICON COMM TECH
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