ZA922184B - Identification apparatus and method - Google Patents

Identification apparatus and method

Info

Publication number
ZA922184B
ZA922184B ZA922184A ZA922184A ZA922184B ZA 922184 B ZA922184 B ZA 922184B ZA 922184 A ZA922184 A ZA 922184A ZA 922184 A ZA922184 A ZA 922184A ZA 922184 B ZA922184 B ZA 922184B
Authority
ZA
South Africa
Prior art keywords
identification apparatus
identification
Prior art date
Application number
ZA922184A
Inventor
David Robert Brooks
Robert Brooks David
Original Assignee
Magellan Corp Australia
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 Magellan Corp Australia filed Critical Magellan Corp Australia
Publication of ZA922184B publication Critical patent/ZA922184B/en

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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/74—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems
    • G01S13/75—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems using transponders powered from received waves, e.g. using passive transponders, or using passive reflectors
    • G01S13/751—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems using transponders powered from received waves, e.g. using passive transponders, or using passive reflectors wherein the responder or reflector radiates a coded signal
    • G01S13/758—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems using transponders powered from received waves, e.g. using passive transponders, or using passive reflectors wherein the responder or reflector radiates a coded signal using a signal generator powered by the interrogation signal
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/74—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems
    • G01S13/82—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems wherein continuous-type signals are transmitted
    • G01S13/825—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems wherein continuous-type signals are transmitted with exchange of information between interrogator and responder
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/0008—General problems related to the reading of electronic memory record carriers, independent of its reading method, e.g. power transfer
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J13/00—Code division multiplex systems
    • H04J13/10—Code generation
ZA922184A 1991-03-28 1992-03-25 Identification apparatus and method ZA922184B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AUPK536691 1991-03-28

Publications (1)

Publication Number Publication Date
ZA922184B true ZA922184B (en) 1992-12-30

Family

ID=3775306

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA922184A ZA922184B (en) 1991-03-28 1992-03-25 Identification apparatus and method

Country Status (4)

Country Link
EP (1) EP0577687A1 (en)
CA (1) CA2103910A1 (en)
WO (1) WO1992017947A1 (en)
ZA (1) ZA922184B (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4242973C2 (en) * 1992-12-18 1995-01-05 Grundig Emv Radio alarm system with a large number of message channels formed by the code multiplex method
DE4337637A1 (en) * 1993-11-04 1995-05-11 Licentia Gmbh Transponder and data communication system
ATE438960T1 (en) * 1994-09-09 2009-08-15 Xircom Wireless Inc WIRELESS SPREAD SPECTRUM COMMUNICATION WITH PREAMBLE PROBING GAP
US5649296A (en) * 1995-06-19 1997-07-15 Lucent Technologies Inc. Full duplex modulated backscatter system
US5649295A (en) * 1995-06-19 1997-07-15 Lucent Technologies Inc. Dual mode modulated backscatter system
US5940006A (en) * 1995-12-12 1999-08-17 Lucent Technologies Inc. Enhanced uplink modulated backscatter system
US6130602A (en) 1996-05-13 2000-10-10 Micron Technology, Inc. Radio frequency data communications device
EP0932840A1 (en) * 1996-10-17 1999-08-04 Pinpoint Corporation Article tracking system
KR100326182B1 (en) * 1998-03-23 2002-07-02 윤종용 Method and apparatus for generating pn sequence in cdma communication system
JP4259746B2 (en) * 2000-12-15 2009-04-30 イビデン株式会社 Received wave transmitter and moving object identification system
FR2871312B1 (en) * 2004-06-03 2006-08-11 St Microelectronics Sa CHARGE MODULATION IN AN ELECTROMAGNETIC TRANSPONDER

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4218680A (en) * 1979-01-12 1980-08-19 Motorola, Inc. Coded coherent transponder
IL78972A (en) * 1985-06-14 1991-04-15 Mitsubishi Electric Sales Amer Video optimized modulator-demodulator
US4746880A (en) * 1987-02-06 1988-05-24 Digital Rf Solutions Corporation Number controlled modulated oscillator
JPH03501554A (en) * 1987-12-04 1991-04-04 マジェラン　コーポレーション（オーストラリア）プロプライエタリー　リミテッド Identification device and method

Also Published As

Publication number Publication date
WO1992017947A1 (en) 1992-10-15
EP0577687A1 (en) 1994-01-12
CA2103910A1 (en) 1992-09-29

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