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Patent Searching and Data


Title:
【発明の名称】狭帯域干渉を伴うスペクトラム拡散信号の受信
Document Type and Number:
Japanese Patent JP2002502143
Kind Code:
A
Abstract:
A receiver (39) receives spread spectrum signals which also include unwanted narrowband signals, for example, radio signals which comprise a mixture of signals from signal sources using the Group Special Mobile (GSM) ETSI standard coding and from signal sources using Code Division Multiple access (CDMA) coding. The unwanted narrowband signals have been coded using a coding scheme with error correction capabilities. In the invention, the narrowband signal is decoded (42), regenerated (44) and subtracted (46) prior to despreading (21) of the spread spectrum signal.

Inventors:
Widson, Terence
Application Number:
JP2000529047A
Publication Date:
January 22, 2002
Filing Date:
January 15, 1999
Export Citation:
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Assignee:
BRITISH TELECOMMUNICATIONS PUBLIC LIMITED COMPANY
International Classes:
H04B1/707; (IPC1-7): H04B1/707
Attorney, Agent or Firm:
Takehiko Suzue (4 outside)