DE69131371D1 - Tragbare Einrichtung zur Informationsverarbeitung und Rundfunkübertragung der verarbeiteten Daten mittels Reflexion eines extern zugeführten unmodulierten Trägersignals - Google Patents

Tragbare Einrichtung zur Informationsverarbeitung und Rundfunkübertragung der verarbeiteten Daten mittels Reflexion eines extern zugeführten unmodulierten Trägersignals

Info

Publication number
DE69131371D1
DE69131371D1 DE69131371T DE69131371T DE69131371D1 DE 69131371 D1 DE69131371 D1 DE 69131371D1 DE 69131371 T DE69131371 T DE 69131371T DE 69131371 T DE69131371 T DE 69131371T DE 69131371 D1 DE69131371 D1 DE 69131371D1
Authority
DE
Germany
Prior art keywords
reflection
information processing
portable device
carrier signal
processed data
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
DE69131371T
Other languages
English (en)
Other versions
DE69131371T2 (de
Inventor
Masamori Tokuda
Hiroshi Nakano
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.)
Sharp Corp
Original Assignee
Sharp Corp
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 Sharp Corp filed Critical Sharp Corp
Application granted granted Critical
Publication of DE69131371D1 publication Critical patent/DE69131371D1/de
Publication of DE69131371T2 publication Critical patent/DE69131371T2/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
    • 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
    • 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
    • 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
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
    • G01S7/024—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00 using polarisation effects
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F15/00—Digital computers in general; Data processing equipment in general
    • G06F15/02—Digital computers in general; Data processing equipment in general manually operated with input through keyboard and computation using a built-in program, e.g. pocket calculators
    • G06F15/0225—User interface arrangements, e.g. keyboard, display; Interfaces to other computer systems
    • 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
DE69131371T 1990-08-13 1991-08-13 Tragbare Einrichtung zur Informationsverarbeitung und Rundfunkübertragung der verarbeiteten Daten mittels Reflexion eines extern zugeführten unmodulierten Trägersignals Expired - Lifetime DE69131371T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2214837A JPH0496520A (ja) 1990-08-13 1990-08-13 データ送信装置

Publications (2)

Publication Number Publication Date
DE69131371D1 true DE69131371D1 (de) 1999-07-29
DE69131371T2 DE69131371T2 (de) 2000-01-13

Family

ID=16662362

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69131371T Expired - Lifetime DE69131371T2 (de) 1990-08-13 1991-08-13 Tragbare Einrichtung zur Informationsverarbeitung und Rundfunkübertragung der verarbeiteten Daten mittels Reflexion eines extern zugeführten unmodulierten Trägersignals

Country Status (4)

Country Link
US (1) US5313211A (de)
EP (1) EP0473981B1 (de)
JP (1) JPH0496520A (de)
DE (1) DE69131371T2 (de)

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FR2700015B1 (fr) * 1992-12-30 1995-01-27 Thomson Csf Procédé d'identification ami-ennemi et poste interrogateur et poste répondeur mettant en Óoeuvre le procédé.
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JP3055456B2 (ja) * 1996-02-21 2000-06-26 株式会社村田製作所 アンテナ装置
US5953495A (en) * 1996-06-19 1999-09-14 Sienna Imaging, Inc. System and method for filtering output of a cathode ray tube
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DE19652324A1 (de) * 1996-12-16 1998-06-25 Siemens Ag Transponder mit einer Mikrowellen-Empfangsantenne
FR2758190B1 (fr) * 1997-01-03 1999-02-12 Remi Fernand Seijido Ensemble de detection d'informations compose d'un emetteur, d'un recepteur, d'un modulateur inerte modulant en absorption et en polarisation des ondes electromagnetiques
US5988510A (en) * 1997-02-13 1999-11-23 Micron Communications, Inc. Tamper resistant smart card and method of protecting data in a smart card
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JP3643488B2 (ja) * 1998-10-30 2005-04-27 株式会社日立製作所 Ｉｃカード
EP1030266B1 (de) 1999-02-19 2009-05-06 Nippon Telegraph and Telephone Corporation Kontaktlose Chipkarte und System hierfür
US6542720B1 (en) 1999-03-01 2003-04-01 Micron Technology, Inc. Microelectronic devices, methods of operating microelectronic devices, and methods of providing microelectronic devices
GB2351423A (en) * 1999-06-25 2000-12-27 Marconi Electronic Syst Ltd Modulator circuit
US6714121B1 (en) * 1999-08-09 2004-03-30 Micron Technology, Inc. RFID material tracking method and apparatus
US6273339B1 (en) 1999-08-30 2001-08-14 Micron Technology, Inc. Tamper resistant smart card and method of protecting data in a smart card
US6957776B1 (en) * 2000-03-30 2005-10-25 Qwest Communications International Inc. System and method for managing a plurality of local lists of a single user
JP3735510B2 (ja) * 2000-04-18 2006-01-18 株式会社村田製作所 伝送線路接続構造、高周波モジュールおよび通信装置
ATE399431T1 (de) * 2000-08-28 2008-07-15 In4Tel Ltd Vorrichtung und verfahren zur verbesserung des niederfrequenten betriebs von mobilkommunikationsantennen
US7068756B2 (en) * 2000-10-18 2006-06-27 Empirix Inc. Multi-interface telephony test system using separate interface cards
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US7606537B2 (en) * 2004-02-10 2009-10-20 Colin Dugald Brodhead System and method for transmitting data via wave reflection
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US9311812B2 (en) * 2012-03-16 2016-04-12 Favepc Inc. Transmitter and transceiver having the same in an RFID system
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Also Published As

Publication number Publication date
DE69131371T2 (de) 2000-01-13
US5313211A (en) 1994-05-17
EP0473981B1 (de) 1999-06-23
EP0473981A2 (de) 1992-03-11
JPH0496520A (ja) 1992-03-27
EP0473981A3 (en) 1993-06-09

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Legal Events

Date Code Title Description
8381 Inventor (new situation)

Free format text: TOKUDA, MASAMORI, TENRI-SHI, NARA-KEN, JP NAKANO, HIROSHI, NARA-SHI, NARA-KEN, JP OHTA, TOMOZO, IKOMA-SHI, NARA-KEN, JP

8364 No opposition during term of opposition