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Wireless coding-decoding circuit of extension address

A codec and bit extension technology, applied in non-electrical signal transmission systems, signal transmission systems, instruments, etc., can solve the problem of few codec addresses and achieve the effect of increasing the number of addresses

Inactive Publication Date: 2018-04-17
鄢碧珠
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  • Abstract
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Problems solved by technology

[0003] For this reason, it is necessary to provide a wireless codec circuit with extended addresses to solve the problem of too few codec addresses

Method used

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  • Wireless coding-decoding circuit of extension address
  • Wireless coding-decoding circuit of extension address

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Embodiment Construction

[0019] In order to explain in detail the technical content, structural features, achieved goals and effects of the technical solution, the following will be described in detail in conjunction with specific embodiments and accompanying drawings.

[0020] see Figure 1 to Figure 2 , this embodiment provides a wireless encoding and decoding circuit with extended addresses, including an encoding circuit and a decoding circuit. The encoding circuit includes a first PT2262 chip U1, a second PT2262 chip U2, and an encoding multi-bit dial switch B1. The decoding circuit includes a second PT2262 chip U1, and a second PT2262 chip U2. One PT2272 chip M1, the second PT2272 chip M2, decoding multi-bit DIP switch B2;

[0021] One of the 6 data bits of the first PT2262 chip is connected to the coding output terminal of the second PT2262 chip, the address bit and the remaining data bits of the first PT2262 chip are connected to the coding multi-bit DIP switch, and the 6 bits of the second PT2...

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Abstract

The invention discloses a wireless encoding and decoding circuit with extended addresses, which includes an encoding circuit and a decoding circuit. The encoding circuit includes a first PT2262 chip, a second PT2262 chip, and a coded multi-bit dial switch. The decoding circuit includes a first PT2272 chip and a second PT2272 chip. Two PT2272 chips, decoding multi-bit DIP switches; different from the existing technology, the above technical solution realizes cascade connection through two coding chips, which greatly increases the number of addresses and realizes multi-address encoding and decoding circuits.

Description

technical field [0001] The invention relates to the technical field of wireless encoding and decoding, in particular to a wireless encoding and decoding circuit with extended addresses. Background technique [0002] In order to avoid interference in existing wireless transmission and reception, a codec chip is required for codec. For example, PT2272 and PT2262 are commonly used as a codec pair for codec in wireless. However, this chip has only 12 addresses at most that can be encoded, and 6 of them are also repeated with the key position. When multiple keys are to be used, for example, many existing car keys need to use 4 keys. 3 to the 8th power, so it is easy to have serial codes. When the volume of products is large, the number of addresses is still too small. Contents of the invention [0003] Therefore, it is necessary to provide a wireless codec circuit with extended addresses to solve the problem of too few codec addresses. [0004] In order to achieve the above ...

Claims

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Application Information

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IPC IPC(8): G08C23/04
CPCG08C23/04
Inventor 鄢碧珠
Owner 鄢碧珠
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