JPS5765935A - Synchronization establishing system for spectrum diffusing communication - Google Patents

Synchronization establishing system for spectrum diffusing communication

Info

Publication number
JPS5765935A
JPS5765935A JP55142053A JP14205380A JPS5765935A JP S5765935 A JPS5765935 A JP S5765935A JP 55142053 A JP55142053 A JP 55142053A JP 14205380 A JP14205380 A JP 14205380A JP S5765935 A JPS5765935 A JP S5765935A
Authority
JP
Japan
Prior art keywords
signal generator
receiving
signal
synchronization
frame
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.)
Granted
Application number
JP55142053A
Other languages
Japanese (ja)
Other versions
JPS639700B2 (en
Inventor
Ryoichi Ogawa
Tomozo Oota
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.)
Oki Electric Industry Co Ltd
Original Assignee
Oki Electric Industry Co Ltd
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 Oki Electric Industry Co Ltd filed Critical Oki Electric Industry Co Ltd
Priority to JP55142053A priority Critical patent/JPS5765935A/en
Publication of JPS5765935A publication Critical patent/JPS5765935A/en
Publication of JPS639700B2 publication Critical patent/JPS639700B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L7/00—Arrangements for synchronising receiver with transmitter
    • H04L7/04—Speed or phase control by synchronisation signals
    • H04L7/041—Speed or phase control by synchronisation signals using special codes as synchronising signal
    • H04L7/043—Pseudo-noise [PN] codes variable during transmission

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)

Abstract

PURPOSE:To make it possible that the receiving system establishes and holds automatically the synchronization rapidly and stably, by providing a means which has an independent frame detection system and generates a frame synchronizing timing for a receiving signal to control the receiving synchronizing system. CONSTITUTION:A means is provided which transfers contents of respective bits of the second PN signal generator, which is operated by the output of the second clock signal generator which is different in frequency from the clock signal of a delay lock tracing loop for synchronization holding, to respective corresponding bits of the first PN signal generator. For example, the synchronization relation to a receiving signal is monitored continuously by a frame detecting system consisting of the second clock generator 21, a PN signal generator 20, and a frame detector 22, and the code state of the PN signal generator is transferred to a PN signal generator 10 for receiving to synchronize an input signal (b), and further, the synchronization is held by the action of a delay lock loop 16.
JP55142053A 1980-10-13 1980-10-13 Synchronization establishing system for spectrum diffusing communication Granted JPS5765935A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55142053A JPS5765935A (en) 1980-10-13 1980-10-13 Synchronization establishing system for spectrum diffusing communication

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55142053A JPS5765935A (en) 1980-10-13 1980-10-13 Synchronization establishing system for spectrum diffusing communication

Publications (2)

Publication Number Publication Date
JPS5765935A true JPS5765935A (en) 1982-04-21
JPS639700B2 JPS639700B2 (en) 1988-03-01

Family

ID=15306306

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55142053A Granted JPS5765935A (en) 1980-10-13 1980-10-13 Synchronization establishing system for spectrum diffusing communication

Country Status (1)

Country Link
JP (1) JPS5765935A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02132937A (en) * 1988-11-14 1990-05-22 Canon Inc Receiving device for spread spectrum communication
JPH02132936A (en) * 1988-11-14 1990-05-22 Canon Inc Receiving device for spread spectrum communication
JPH02132935A (en) * 1988-11-14 1990-05-22 Canon Inc Receiving device for spread spectrum communication
JPH03139030A (en) * 1989-10-24 1991-06-13 Canon Inc Receiver for spread spectrum communication
US6208683B1 (en) 1997-06-10 2001-03-27 Nec Corporation Receiving apparatus for use in CDMA type mobile radio communication system comprising a plurality of path receivers each including a follow-up path detection unit

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI510507B (en) 2009-05-29 2015-12-01 Nissan Chemical Ind Ltd Fluorine-containing highly branched polymer and resin composition containing the ploymer

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02132937A (en) * 1988-11-14 1990-05-22 Canon Inc Receiving device for spread spectrum communication
JPH02132936A (en) * 1988-11-14 1990-05-22 Canon Inc Receiving device for spread spectrum communication
JPH02132935A (en) * 1988-11-14 1990-05-22 Canon Inc Receiving device for spread spectrum communication
JPH03139030A (en) * 1989-10-24 1991-06-13 Canon Inc Receiver for spread spectrum communication
US6208683B1 (en) 1997-06-10 2001-03-27 Nec Corporation Receiving apparatus for use in CDMA type mobile radio communication system comprising a plurality of path receivers each including a follow-up path detection unit

Also Published As

Publication number Publication date
JPS639700B2 (en) 1988-03-01

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