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IT1119700B - Perfezionamenti ai sistemi di comunicazione a spettro diffuso - Google Patents

Perfezionamenti ai sistemi di comunicazione a spettro diffuso

Info

Publication number
IT1119700B
IT1119700B IT69389/79A IT6938979A IT1119700B IT 1119700 B IT1119700 B IT 1119700B IT 69389/79 A IT69389/79 A IT 69389/79A IT 6938979 A IT6938979 A IT 6938979A IT 1119700 B IT1119700 B IT 1119700B
Authority
IT
Italy
Prior art keywords
refinements
communication systems
spectrum communication
diffused
diffused spectrum
Prior art date
Application number
IT69389/79A
Other languages
English (en)
Other versions
IT7969389A0 (it
Inventor
Giancarlo Pirani
Original Assignee
Cselt Centro Studi Lab Telecom
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 Cselt Centro Studi Lab Telecom filed Critical Cselt Centro Studi Lab Telecom
Priority to IT69389/79A priority Critical patent/IT1119700B/it
Publication of IT7969389A0 publication Critical patent/IT7969389A0/it
Priority to US06/215,794 priority patent/US4358844A/en
Application granted granted Critical
Publication of IT1119700B publication Critical patent/IT1119700B/it

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J13/00—Code division multiplex systems
    • H04J13/0007—Code type
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
IT69389/79A 1979-12-13 1979-12-13 Perfezionamenti ai sistemi di comunicazione a spettro diffuso IT1119700B (it)

Priority Applications (2)

Application Number Priority Date Filing Date Title
IT69389/79A IT1119700B (it) 1979-12-13 1979-12-13 Perfezionamenti ai sistemi di comunicazione a spettro diffuso
US06/215,794 US4358844A (en) 1979-12-13 1980-12-12 Method of and means for spread-spectrum transmission

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT69389/79A IT1119700B (it) 1979-12-13 1979-12-13 Perfezionamenti ai sistemi di comunicazione a spettro diffuso

Publications (2)

Publication Number Publication Date
IT7969389A0 IT7969389A0 (it) 1979-12-13
IT1119700B true IT1119700B (it) 1986-03-10

Family

ID=11312025

Family Applications (1)

Application Number Title Priority Date Filing Date
IT69389/79A IT1119700B (it) 1979-12-13 1979-12-13 Perfezionamenti ai sistemi di comunicazione a spettro diffuso

Country Status (2)

Country Link
US (1) US4358844A (it)
IT (1) IT1119700B (it)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4597107A (en) * 1983-04-01 1986-06-24 Psr Products, Inc. Modulation detector and classifier
US5073900A (en) * 1990-03-19 1991-12-17 Mallinckrodt Albert J Integrated cellular communications system
GB2276794A (en) * 1993-03-25 1994-10-05 Roke Manor Research Spread spectrum analog signal communication system
US5794140A (en) * 1995-10-24 1998-08-11 Telefonaktiebolaget L M Ericcson (Publ) Method and apparatus for offering subscribers access to unused communications capacity in a cellular communications system
US5828737A (en) * 1995-10-24 1998-10-27 Telefonaktiebolaget L M Ericsson Communications service billing based on bandwidth use
US5974308A (en) * 1996-11-13 1999-10-26 Telefonaktiebolaget Lm Ericsson Selective broadcasting of charge rates
US6304562B1 (en) 1997-06-26 2001-10-16 Samsung Electronics Co., Ltd. Asymmetric forward power control in a CDMA communication
US6829289B1 (en) * 2000-12-05 2004-12-07 Gossett And Gunter, Inc. Application of a pseudo-randomly shuffled hadamard function in a wireless CDMA system
US8385470B2 (en) * 2000-12-05 2013-02-26 Google Inc. Coding a signal with a shuffled-Hadamard function
US7545849B1 (en) 2003-03-28 2009-06-09 Google Inc. Signal spectrum spreading and combining system and method
US8374218B2 (en) * 2000-12-05 2013-02-12 Google Inc. Combining signals with a shuffled-hadamard function
US6982945B1 (en) 2001-01-26 2006-01-03 Google, Inc. Baseband direct sequence spread spectrum transceiver
US7453921B1 (en) 2001-12-11 2008-11-18 Google Inc. LPC filter for removing periodic and quasi-periodic interference from spread spectrum signals
US7352833B2 (en) * 2002-11-18 2008-04-01 Google Inc. Method and system for temporal autocorrelation filtering

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2251960B1 (it) * 1973-11-16 1977-08-12 Thomson Csf
NL7903466A (nl) * 1979-05-03 1980-11-05 Philips Nv Spectrumomvormer voor analoge signalen.

Also Published As

Publication number Publication date
US4358844A (en) 1982-11-09
IT7969389A0 (it) 1979-12-13

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Legal Events

Date Code Title Description
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19941125