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Receiving circuit for receiving information signal

A technology for receiving circuits and message signals, which is applied in the field of receiving circuits and can solve problems such as missing messages

Inactive Publication Date: 2003-06-04
NXP BV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if the input signal is heavily affected by noise, this approach can result in a complete unlock of the bit synchronization and loss of content in the message

Method used

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  • Receiving circuit for receiving information signal
  • Receiving circuit for receiving information signal

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Embodiment Construction

[0017] These and other aspects of the invention will be apparent with reference to the embodiments described hereinafter.

[0018] The only figure in the accompanying drawing shows the receiving circuit used to receive the message signal. The message signal transmitted via the communication channel 2 is fed into the input stage 3 of the receiving circuit. The input stage 3 includes, for example, an HF mixer, an IF mixer and various filter circuits. The input stage 3 performs analog preprocessing of the received message signal 1 . The message signal 1 subjected to analog preprocessing by the stage 3 is fed to the sampling unit 4 and converted into a sampled signal 5 . A decoder 6 is connected downstream of the sampling unit 4 . A checking unit 7 is connected downstream of the decoder 6 . Finally, a message translation unit 8 is connected downstream of the checking unit 7 . Decoder 6 supplies error signal 9 to control unit 11 , and checking unit 7 supplies error signal 10 t...

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PUM

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Abstract

The invention relates to a receiving circuit for receiving message signals, having a sampler for converting the message signal into a sampled signal, an analyzing unit for decoding the sampled signal and checking it for errors, and a control unit for controlling the sampling method as a function of the error-check on the sampled signal.

Description

technical field [0001] The invention relates to a receiving circuit for receiving a message signal, which has a sampler for converting the message signal into a sampled signal. Background technique [0002] A message signal is a signal that contains information encoded in any desired manner. The so-called sampler is an element that is able to sample a message signal at a definable point in time and convert it into a sampled signal. [0003] When sending using a communication channel or before being recorded on a data carrier, messages or data sets are usually coded in such a way that errors caused by channel disturbances or errors in the data carrier can be recognized or corrected when they are received. resulting error. [0004] Phase errors are caused by, for example, inaccuracies in transmitter and receiver bit synchronization. A well-known method to avoid phase errors is the edge-based resynchronization approach, ie the receiver's bit timing is adjusted to the data st...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/00H04L25/06H04L25/49
CPCH04L1/004H04L25/4904
Inventor W·O·布德P·福尔曼
Owner NXP BV