JPS6432735A - Code division multiple access communications device - Google Patents

Code division multiple access communications device

Info

Publication number
JPS6432735A
JPS6432735A JP62187651A JP18765187A JPS6432735A JP S6432735 A JPS6432735 A JP S6432735A JP 62187651 A JP62187651 A JP 62187651A JP 18765187 A JP18765187 A JP 18765187A JP S6432735 A JPS6432735 A JP S6432735A
Authority
JP
Japan
Prior art keywords
channel
channel number
channels
correlation
communications
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP62187651A
Other languages
Japanese (ja)
Inventor
Ichirou Katou
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Canon Inc
Original Assignee
Canon Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Canon Inc filed Critical Canon Inc
Priority to JP62187651A priority Critical patent/JPS6432735A/en
Publication of JPS6432735A publication Critical patent/JPS6432735A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To discriminate plural communications channel receiving signals with a detecting system by means of a single correlation filter and a deciding means by switching and using the correlation characteristics of the correlation filter so as to be successively adapted to plural communications channels passingly. CONSTITUTION:A polarity pattern selecting circuit 5 selects a polarity pattern corresponding to the said communications channel on a programmable matched filter 1, based on a channel number obtained by a channel number generating circuit 4. The channel number generating circuit 4 generates the channel number which corresponds to the next communications channel after a prescribed time passes, and waits for the signal of the said communications channel. The action is repeated to all channels, and when the signal exists after the existence of the signals of all channels is decided, the channel number and a synchronizing timing are transmitted to a receiver. Consequently, the number of correlation loop circuits can be decreased, the constitution of a device can be simplified, and a manufacturing cost can be reduced.
JP62187651A 1987-07-29 1987-07-29 Code division multiple access communications device Pending JPS6432735A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62187651A JPS6432735A (en) 1987-07-29 1987-07-29 Code division multiple access communications device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62187651A JPS6432735A (en) 1987-07-29 1987-07-29 Code division multiple access communications device

Publications (1)

Publication Number Publication Date
JPS6432735A true JPS6432735A (en) 1989-02-02

Family

ID=16209830

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62187651A Pending JPS6432735A (en) 1987-07-29 1987-07-29 Code division multiple access communications device

Country Status (1)

Country Link
JP (1) JPS6432735A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998007246A1 (en) * 1996-08-09 1998-02-19 Hitachi, Ltd. Communication apparatus and communication system
JP2006212522A (en) * 2005-02-02 2006-08-17 Babcock Hitachi Kk Crusher and coal burning boiler apparatus using the same

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998007246A1 (en) * 1996-08-09 1998-02-19 Hitachi, Ltd. Communication apparatus and communication system
JP2006212522A (en) * 2005-02-02 2006-08-17 Babcock Hitachi Kk Crusher and coal burning boiler apparatus using the same

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