CA2143433A1 - Composant d'emetteur-recepteur ou de recepteur differentiel de signaux a spectre etale en sequence directe et emetteur-recepteur connexe - Google Patents

Composant d'emetteur-recepteur ou de recepteur differentiel de signaux a spectre etale en sequence directe et emetteur-recepteur connexe

Info

Publication number
CA2143433A1
CA2143433A1 CA002143433A CA2143433A CA2143433A1 CA 2143433 A1 CA2143433 A1 CA 2143433A1 CA 002143433 A CA002143433 A CA 002143433A CA 2143433 A CA2143433 A CA 2143433A CA 2143433 A1 CA2143433 A1 CA 2143433A1
Authority
CA
Canada
Prior art keywords
component
electrodes
output
switch
signal
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.)
Abandoned
Application number
CA002143433A
Other languages
English (en)
Inventor
Alain Le Roy
Charles Fort
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.)
Commissariat a lEnergie Atomique et aux Energies Alternatives CEA
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of CA2143433A1 publication Critical patent/CA2143433A1/fr
Abandoned legal-status Critical Current

Links

Classifications

    • 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
    • H04B1/7093—Matched filter type
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic elements; Electromechanical resonators
    • H03H9/46—Filters
    • H03H9/64—Filters using surface acoustic waves
    • H03H9/6406—Filters characterised by a particular frequency characteristic

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
  • Transceivers (AREA)

Abstract

Composant pour récepteur ou pour émetteur-récepteur différentiel de signaux à étalement de spectre par séquence directe et émetteur-récepteur correspondant. Le composant comprend un seul transducteur adapté à la séquence pseudoaléatoire et c'est le transducteur d'entrée. Le composant comprend encore deux transducteurs de sortie (TRS1, TRS2) décalés d'une période. Application aux radiocommunications.
CA002143433A 1993-07-06 1994-07-05 Composant d'emetteur-recepteur ou de recepteur differentiel de signaux a spectre etale en sequence directe et emetteur-recepteur connexe Abandoned CA2143433A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR93/08272 1993-07-06
FR9308272A FR2707441B1 (fr) 1993-07-06 1993-07-06 Composant pour récepteur ou pour émetteur-récepteur différentiel de signaux à étalement de spectre par séquence directe et émetteur-récepteur correspondant.

Publications (1)

Publication Number Publication Date
CA2143433A1 true CA2143433A1 (fr) 1995-01-19

Family

ID=9448966

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002143433A Abandoned CA2143433A1 (fr) 1993-07-06 1994-07-05 Composant d'emetteur-recepteur ou de recepteur differentiel de signaux a spectre etale en sequence directe et emetteur-recepteur connexe

Country Status (5)

Country Link
EP (1) EP0658292A1 (fr)
JP (1) JPH08501672A (fr)
CA (1) CA2143433A1 (fr)
FR (1) FR2707441B1 (fr)
WO (1) WO1995002285A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE9502285D0 (sv) 1995-06-22 1995-06-22 Pharmacia Ab Improvements related to injections

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4464639A (en) * 1982-09-17 1984-08-07 Rockwell International Corporation Ferroelectric surface acoustic wave devices
GB8916623D0 (en) * 1989-07-20 1989-09-06 Ncr Co Spread spectrum signal demodulator
US5081642A (en) * 1990-08-06 1992-01-14 Omnipoint Data Company, Incorporated Reciprocal saw correlator method and apparatus

Also Published As

Publication number Publication date
FR2707441B1 (fr) 1995-08-11
EP0658292A1 (fr) 1995-06-21
JPH08501672A (ja) 1996-02-20
WO1995002285A1 (fr) 1995-01-19
FR2707441A1 (fr) 1995-01-13

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Legal Events

Date Code Title Description
FZDE Discontinued
FZDE Discontinued

Effective date: 19980706