DE68920684D1 - System zur Diskrimination von Signalen. - Google Patents

System zur Diskrimination von Signalen.

Info

Publication number
DE68920684D1
DE68920684D1 DE68920684T DE68920684T DE68920684D1 DE 68920684 D1 DE68920684 D1 DE 68920684D1 DE 68920684 T DE68920684 T DE 68920684T DE 68920684 T DE68920684 T DE 68920684T DE 68920684 D1 DE68920684 D1 DE 68920684D1
Authority
DE
Germany
Prior art keywords
signal discrimination
discrimination system
signal
discrimination
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.)
Expired - Lifetime
Application number
DE68920684T
Other languages
English (en)
Other versions
DE68920684T2 (de
Inventor
Jeremy A Landt
Alfred R Koelle
David A Eckhardt
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.)
Amtech Systems Inc
Original Assignee
Amtech Systems Inc
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 Amtech Systems Inc filed Critical Amtech Systems Inc
Application granted granted Critical
Publication of DE68920684D1 publication Critical patent/DE68920684D1/de
Publication of DE68920684T2 publication Critical patent/DE68920684T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • 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
DE68920684T 1988-10-06 1989-05-04 System zur Diskrimination von Signalen. Expired - Lifetime DE68920684T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/254,254 US4888591A (en) 1988-10-06 1988-10-06 Signal discrimination system

Publications (2)

Publication Number Publication Date
DE68920684D1 true DE68920684D1 (de) 1995-03-02
DE68920684T2 DE68920684T2 (de) 1995-07-13

Family

ID=22963548

Family Applications (1)

Application Number Title Priority Date Filing Date
DE68920684T Expired - Lifetime DE68920684T2 (de) 1988-10-06 1989-05-04 System zur Diskrimination von Signalen.

Country Status (10)

Country Link
US (1) US4888591A (de)
EP (1) EP0362984B1 (de)
JP (1) JPH02181685A (de)
KR (1) KR940009240B1 (de)
AU (1) AU607667B2 (de)
CA (1) CA1332973C (de)
DE (1) DE68920684T2 (de)
HK (1) HK143296A (de)
IL (1) IL90426A (de)
NO (1) NO174756C (de)

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US7911324B2 (en) * 2001-02-16 2011-03-22 Automotive Technologies International, Inc. Method and system for obtaining information about RFID-equipped objects
US7039359B2 (en) * 2000-12-07 2006-05-02 Intermec Ip Corp. RFID interrogator having customized radio parameters with local memory storage
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US6782247B2 (en) * 2001-04-02 2004-08-24 Zeevo, Inc. CMOS frequency conversion using dual mixers for sideband suppression
US20030030542A1 (en) * 2001-08-10 2003-02-13 Von Hoffmann Gerard PDA security system
US6737973B2 (en) * 2001-10-15 2004-05-18 3M Innovative Properties Company Amplifier modulation
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US20040022227A1 (en) * 2002-08-02 2004-02-05 Lynch Randall Gene System and method for asset tracking
DE10254200B4 (de) * 2002-11-20 2006-04-20 Siemens Ag Vorrichtung und Verfahren zum Erkennen der Sitzbelegung in einem Fahrzeug
US20050058292A1 (en) * 2003-09-11 2005-03-17 Impinj, Inc., A Delaware Corporation Secure two-way RFID communications
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Also Published As

Publication number Publication date
AU3517589A (en) 1990-04-12
JPH02181685A (ja) 1990-07-16
NO893969D0 (no) 1989-10-05
CA1332973C (en) 1994-11-08
KR940009240B1 (ko) 1994-10-01
KR900006796A (ko) 1990-05-08
IL90426A (en) 1993-01-14
EP0362984A3 (de) 1991-05-08
DE68920684T2 (de) 1995-07-13
NO174756B (no) 1994-03-21
US4888591A (en) 1989-12-19
HK143296A (en) 1996-08-09
NO893969L (no) 1990-04-09
EP0362984B1 (de) 1995-01-18
IL90426A0 (en) 1990-01-18
AU607667B2 (en) 1991-03-07
EP0362984A2 (de) 1990-04-11
NO174756C (no) 1994-06-29

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Legal Events

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8364 No opposition during term of opposition