Encoder circuit and communication chip

A communication chip and encoder technology, applied in electrical components, transmission systems, etc., can solve the problems of high cost of encoder circuits, large wafer area occupied, complex structure, etc., and achieve low cost, small wafer area, and circuit The effect of simple structure

Active Publication Date: 2021-10-01
SHANGHAI XINLONG SEMICON TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, although an encoder circuit for encoding an input signal already exists in the prior art, the structure of the encoder circuit in the prior art is relatively complex and requires a large number of components, resulting in a high cost of the encoder circuit. , Occupying a large wafer area and other issues

Method used

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  • Encoder circuit and communication chip
  • Encoder circuit and communication chip

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Embodiment Construction

[0035] In order to make the purpose, advantages and features of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the drawings are all in very simplified form and not drawn to scale, and are only used to facilitate and clearly assist the purpose of illustrating the embodiments of the present invention. In addition, the structures shown in the drawings are often a part of the actual structures. In particular, each drawing needs to display different emphases, and sometimes uses different scales.

[0036] As used in the present invention, the singular forms "a", "an" and "the" include plural objects, the term "or" is usually used in the sense of including "and / or", and the term "several" Usually, the term "at least one" is used in the meaning of "at least one", and the term "at least two" is usually used in the meaning of "two or more". In ...

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Abstract

The invention provides a novel encoder circuit and a communication chip, which are applied in the technical field of integrated circuit chips. Specifically, in the encoder circuit provided by the present invention, it realizes the identification and sorting of input signals through a simple circuit, and controls the output in an orderly manner through the encoded signal output module, so that the output produces high (low), medium, low ( High) continuously changing signal, realizes the encoding function of the input signal, and has the advantages of simple circuit structure, strong anti-interference ability, small wafer area and low cost.

Description

technical field [0001] The invention relates to the technical field of integrated circuit chip design, in particular to an encoder circuit and a communication chip. Background technique [0002] In the fields of air conditioning, security, smart home, etc., the communication between the host and the slave mostly adopts the Home BUS (HBS for short) communication protocol, and its communication rate is usually 9.6Kbps. The protocol uses a polarity-insensitive twisted pair to connect the master and slave devices, and supports communication and power supply through the twisted pair. In order to increase the transmission distance between master and slave devices and reduce the interference that increases with the transmission distance, differential signals are often used for signal transmission between master and slave devices. The bus that transmits communication signals is usually called the AB bus. The A line is connected to one signal output port of the communication chip, a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B1/40
CPCH04B1/40
Inventor 贾生龙李瑞平池伟
Owner SHANGHAI XINLONG SEMICON TECH CO LTD
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