GB8912003D0 - A spread spectrum digital data transmission and reception system - Google Patents

A spread spectrum digital data transmission and reception system

Info

Publication number
GB8912003D0
GB8912003D0 GBGB8912003.4A GB8912003A GB8912003D0 GB 8912003 D0 GB8912003 D0 GB 8912003D0 GB 8912003 A GB8912003 A GB 8912003A GB 8912003 D0 GB8912003 D0 GB 8912003D0
Authority
GB
United Kingdom
Prior art keywords
data transmission
digital data
spread spectrum
reception system
spectrum digital
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
GBGB8912003.4A
Other versions
GB2319147B (en
GB2319147A (en
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.)
Alcatel Thomson Faisceaux Hertziens SA
Original Assignee
Alcatel Thomson Faisceaux Hertziens SA
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 Alcatel Thomson Faisceaux Hertziens SA filed Critical Alcatel Thomson Faisceaux Hertziens SA
Publication of GB8912003D0 publication Critical patent/GB8912003D0/en
Publication of GB2319147A publication Critical patent/GB2319147A/en
Application granted granted Critical
Publication of GB2319147B publication Critical patent/GB2319147B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J13/00—Code division multiplex systems
    • H04J13/0003—Code application, i.e. aspects relating to how codes are applied to form multiplexed channels
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69—Spread spectrum techniques
    • H04B1/707—Spread spectrum techniques using direct sequence modulation
    • H04B1/7073—Synchronisation aspects
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69—Spread spectrum techniques
    • H04B1/707—Spread spectrum techniques using direct sequence modulation
    • H04B1/709—Correlator structure

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
GB8912003A 1988-05-31 1989-05-25 A spread spectrum digital data transmission and reception system Expired - Fee Related GB2319147B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8807219A FR2751816A1 (en) 1988-05-31 1988-05-31 OQPSK digital data transmission system

Publications (3)

Publication Number Publication Date
GB8912003D0 true GB8912003D0 (en) 1998-02-18
GB2319147A GB2319147A (en) 1998-05-13
GB2319147B GB2319147B (en) 1998-09-02

Family

ID=9366770

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8912003A Expired - Fee Related GB2319147B (en) 1988-05-31 1989-05-25 A spread spectrum digital data transmission and reception system

Country Status (4)

Country Link
FR (1) FR2751816A1 (en)
GB (1) GB2319147B (en)
IT (1) IT8967383A0 (en)
SE (1) SE8901937D0 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1311073A1 (en) 2001-11-12 2003-05-14 Texas Instruments Incorporated Modulation system for complex spreading codes
CN102075472B (en) * 2011-02-16 2014-12-31 四川九洲电器集团有限责任公司 Method for spreading intermediate frequency of OQPSK and despreading and demodulating spread intermediate frequency

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1191905A (en) * 1982-06-30 1985-08-13 Canadian Patents And Development Limited/Societe Canadienne Des Brevets Et D'exploitation Limitee Spread spectrum modem

Also Published As

Publication number Publication date
GB2319147B (en) 1998-09-02
IT8967383A0 (en) 1989-05-23
FR2751816A1 (en) 1998-01-30
SE8901937D0 (en) 1989-05-30
GB2319147A (en) 1998-05-13

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19981202