NO944864L - Fremgangsmåte og anordning for å frembringe et kodesvar på en innfallende elektromegnetisk bölge - Google Patents
Fremgangsmåte og anordning for å frembringe et kodesvar på en innfallende elektromegnetisk bölgeInfo
- Publication number
- NO944864L NO944864L NO944864A NO944864A NO944864L NO 944864 L NO944864 L NO 944864L NO 944864 A NO944864 A NO 944864A NO 944864 A NO944864 A NO 944864A NO 944864 L NO944864 L NO 944864L
- Authority
- NO
- Norway
- Prior art keywords
- electromagnetic wave
- pulse
- generating
- incident electromagnetic
- code response
- Prior art date
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
- G01S13/76—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems wherein pulse-type signals are transmitted
- G01S13/78—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems wherein pulse-type signals are transmitted discriminating between different kinds of targets, e.g. IFF-radar, i.e. identification of friend or foe
-
- 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
- G01S13/756—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 for modifying the reflectivity of the reflector
Abstract
En elektromagnetisk bølge sendt ut fra en interrogator-enhet (l, l') mottas av en transponder-antenne (5) og omformes til en eneste puls ved hjelp av en demodulasjonskrets (7). I en pulsforsinker-generator (8) forsinkes den eneste puls sekven- sielt ved hjelp av forsinker-elementer (9) for derved å frembringe pulser som innbyrdes avviker i tid. En kode- innretning (11) genererer et særskilt kodet pulstog på grunnlag av de forsinkede pulser. Når hver puls i det kodede pulstog tilføres en modulasjonskrets (14), endres impedans- karakteristikken for modulasjonskretsen (14) og en impedans- tilpasningskrets (15). Som et resultat reflekterer transpond- er-antennen (S) den elektromagnetiske bølge som sendes ut fra interrogator-enheten.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP34423593A JPH07174845A (ja) | 1993-12-17 | 1993-12-17 | 符号応答方法およびその方法を実施するための符号応答器並びにその符号応答器が用いられた符号応答システム |
Publications (2)
Publication Number | Publication Date |
---|---|
NO944864D0 NO944864D0 (no) | 1994-12-15 |
NO944864L true NO944864L (no) | 1995-06-19 |
Family
ID=18367679
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO944864A NO944864L (no) | 1993-12-17 | 1994-12-15 | Fremgangsmåte og anordning for å frembringe et kodesvar på en innfallende elektromegnetisk bölge |
Country Status (4)
Country | Link |
---|---|
JP (1) | JPH07174845A (no) |
DE (1) | DE4445285A1 (no) |
GB (1) | GB2285557A (no) |
NO (1) | NO944864L (no) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3299885B2 (ja) * | 1996-03-22 | 2002-07-08 | 和夫 坪内 | 無線データ送受信装置 |
DE19641022A1 (de) * | 1996-10-07 | 1998-04-09 | Abb Patent Gmbh | Einrichtung zum Scharf-und Unscharfschalten einer Gefahrenmeldeanlage |
DE19957557A1 (de) * | 1999-11-30 | 2001-06-07 | Siemens Ag | Identifikationssystem, insbesondere für ein Kraftfahrzeug, und Verfahren zum Betreiben des Identifikationssystems |
GB2363498B (en) | 2000-06-16 | 2005-06-01 | Marconi Caswell Ltd | Transponder device for generating a data bearing output |
JP4757713B2 (ja) * | 2006-06-01 | 2011-08-24 | 三菱電機株式会社 | 侵入物体識別装置 |
JP5046092B2 (ja) * | 2006-12-15 | 2012-10-10 | 独立行政法人産業技術総合研究所 | 温度センサ、生体の健康管理システム |
FR2946152B1 (fr) * | 2009-05-27 | 2016-07-08 | Commissariat A L'energie Atomique | Telemetre absolu hyperfrequence de haute precision a dispositif de reflexion multi-etat. |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3270338A (en) * | 1961-03-24 | 1966-08-30 | Gen Electric | Identification system |
US3273146A (en) * | 1964-08-07 | 1966-09-13 | Gen Electric | Object identifying apparatus |
GB1567750A (en) * | 1975-09-19 | 1980-05-21 | Seldown Electronics Ltd | Transponders |
DE2821299A1 (de) * | 1978-05-16 | 1979-11-22 | Siemens Ag | Einrichtung zur identifizierung von gegenstaenden und personen |
AU565454B2 (en) * | 1984-10-09 | 1987-09-17 | X-Cyte Inc. | Saw transponder |
CA1335676C (en) * | 1988-01-14 | 1995-05-23 | Akira Iga | Portable data transmitter device and a system using the same |
EP0458821B1 (en) * | 1989-02-17 | 1996-07-24 | Integrated Silicon Design Pty. Ltd | Transponder system |
JPH03113387A (ja) * | 1989-09-27 | 1991-05-14 | Nippon Soken Inc | 移動体識別装置の応答器 |
US5247305A (en) * | 1990-10-10 | 1993-09-21 | Nippondenso Co., Ltd. | Responder in movable-object identification system |
JP3008509B2 (ja) * | 1991-02-15 | 2000-02-14 | オムロン株式会社 | 応答器、識別システム及び応答器の製造方法 |
-
1993
- 1993-12-17 JP JP34423593A patent/JPH07174845A/ja active Pending
-
1994
- 1994-12-15 NO NO944864A patent/NO944864L/no unknown
- 1994-12-16 GB GB9425459A patent/GB2285557A/en not_active Withdrawn
- 1994-12-19 DE DE19944445285 patent/DE4445285A1/de not_active Ceased
Also Published As
Publication number | Publication date |
---|---|
NO944864D0 (no) | 1994-12-15 |
JPH07174845A (ja) | 1995-07-14 |
DE4445285A1 (de) | 1995-06-22 |
GB2285557A (en) | 1995-07-12 |
GB9425459D0 (en) | 1995-02-15 |
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