Method for and apparatus to extract a frequency reference, a time reference and data from a single information system

A frequency reference, a time reference and data may be provided on, and subsequently extracted from, a single information stream. To achieve this a modulator 102 generates the single information stream by modulating the data on the frequency reference and pre-empting the data modulation to modulate...

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Hauptverfasser: SPIOTTA, MARK G, GEHRKE, JAMES K
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creator SPIOTTA
MARK G
GEHRKE
JAMES K
description A frequency reference, a time reference and data may be provided on, and subsequently extracted from, a single information stream. To achieve this a modulator 102 generates the single information stream by modulating the data on the frequency reference and pre-empting the data modulation to modulate the time reference on the frequency reference. This single information stream is then provided on a single bus 106 which is coupled to a plurality of base stations 103-105. The base stations 103-105 each include a demodulator 107-109, which recovers the frequency reference 117, the time reference 118, and/or the data 116, from the single information stream.
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subjects BASIC ELECTRONIC CIRCUITRY
BROADCAST COMMUNICATION
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
ELECTRONIC TIME-PIECES
HOROLOGY
MULTIPLEX COMMUNICATION
PHYSICS
PULSE TECHNIQUE
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
title Method for and apparatus to extract a frequency reference, a time reference and data from a single information system
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