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Method and apparatus for a single channel digital communications systemA method and apparatus are described for synchronizing a received PCM communications signal without requiring a separate synchronizing channel. The technique provides digital correlation of the received signal with a reference signal, first with its unmodulated subcarrier and then with a bit sync code modulated subcarrier, where the code sequence length is equal in duration to each data bit.
Document ID
19740002020
Acquisition Source
Legacy CDMS
Document Type
Other - Patent
Authors
Couvillon, L. A., Jr. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Carl, C. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Goldstein, R. M. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Posner, E. C. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Green, R. R. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Date Acquired
September 3, 2013
Publication Date
October 16, 1973
Subject Category
Structural Mechanics
Report/Patent Number
Patent Application Number: US-PATENT-APPL-SN-266822
Patent Application Number: US-PATENT-APPL-SN-70967
Patent Number: NASA-CASE-NPO-11302-2
Patent Number: US-PATENT-3,766,315
Accession Number
74N10132
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
Patent
NASA-CASE-NPO-11302-2|US-PATENT-3,766,315
Patent Application
US-PATENT-APPL-SN-266822|US-PATENT-APPL-SN-70967

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