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Method to decode a data string

A data string and data technology, applied in the field of decoding data strings, can solve problems such as data corruption

Inactive Publication Date: 2006-05-17
THOMSON LICENSING SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to different transmission conditions, data may be corrupted on any area of ​​the sent string

Method used

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  • Method to decode a data string

Examples

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Embodiment Construction

[0020] FIG. 1 shows a block diagram of a device for carrying out the method of the invention. A user interface module 1 , a decoder module 2 and an output device 3 are shown. A broadcast signal is received through an antenna 4 and supplied to a tuner 5 . Audio demodulator 6 outputs audio signal AU to audio mixer 7 and FSK demodulator 8 . The demodulator 8 outputs a lock detection signal Q and a data signal SAME. The signals Q and SAME are input to the microcontroller unit 9 . The microcontroller unit 9 decodes the received data signal SAME and stores the decoded data in the non-volatile memory 10, outputs the audio warning signal AUW to the audio mixer 7, and outputs the status information SI to the user interface Module 1. Light emitting diodes 11 are activated in response to status information SI to indicate different alarm categories. Keys 12 are provided for instructing the microcontroller unit 9 to output previously received information from the memory 10 or more det...

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Abstract

The present invention relates to decoding data transmitted by the US National Weather Service NOAA Weather Radio (NWR) transmitters, or any other data transmitted in a comparable manner. According to the present invention, the method for decoding a received data string includes the steps of: locating a predefined useful part of the data string; ignoring the useless part of the data string; and further checking only the located useful part of the data string. The decoding according to the proposed algorithm is very reliable.

Description

technical field [0001] The present invention is concerned with decoding data transmitted by a National Weather Service NOAA Weather Radio (NWR) transmitter, or any other data transmitted in a comparable manner. The decoding according to the proposed algorithm is very reliable. Background technique [0002] In, for example, Update #4.43 of the publication "NATIONAL WEATHER SERVICE-NOAA WEATHERRADIO (NWR) TRANSMITTER-NWR SPECIFIC AREA MESSAGEENCODING-NWR SAME" July 13, 1999, described the use of NOAA Weather Radio (NWR ) The data format of the transmitted data. Background, details and examples of the NWR SAME system and data transmitted in accordance with the system are described therein and therefore will not be repeated here unless deemed helpful in understanding the invention. Similar systems are being installed or tested in other countries and similar solutions as described here can be applied. In Germany, for example, the DCF 77 time signal transmission, currently unde...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/08G08B21/10G08B27/00
CPCG08B27/008H04L1/08H03M7/40H03M13/03
Inventor 曾俊明朱恒顺谢松荣
Owner THOMSON LICENSING SA
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