US Patent No: 4,688,210

Number of patents in Portfolio can not be more than 2000

Method of and arrangement for synchronizing the receiver arrangements in a digital multiplex transmission system

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Abstract

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A digital multiplex radio transmission system wherein transmission channels between a fixed radio station and a plurality of mobile radio stations may be established by code division multiplex or frequency division multiplex, individual message channels being separated by means of different distributions of the data symbols transmitted therein. In order to synchronize the fixed station transmitter with the mobile station receivers, respective synchronizing symbols are inserted between the successive data symbols transmitted in any channel. The synchronizing symbols used in all channels are the same, and are spaced at the same time intervals in each channel. Consequently, they are received with significantly higher energy than the data symbols, permitting the multi-path profile to be measured and providing reliable synchronization.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
LUCENT TECHNOLOGIES INC.MURRAY HILL, NJ9024

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Eizenhofer, Alfons Altdorf, DE 7 619
Grauel, Christoph Feucht, DE 6 353

Cited Art Landscape

Patent Info (Count) # Cites Year
 
NEC CORPORATION (1)
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Patent Citation Ranking

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Patent Info (Count) # Cites Year
 
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