DE69909621D1 - Anordnungen und verfahren zur drahtlosen leistungsprojektion mittels in-phase stromschleifen und zur identifizierung von hochfrequenzgesteuerten identifizierungsetiketten die gleichzeitig abgefragt werden - Google Patents

Anordnungen und verfahren zur drahtlosen leistungsprojektion mittels in-phase stromschleifen und zur identifizierung von hochfrequenzgesteuerten identifizierungsetiketten die gleichzeitig abgefragt werden

Info

Publication number
DE69909621D1
DE69909621D1 DE69909621T DE69909621T DE69909621D1 DE 69909621 D1 DE69909621 D1 DE 69909621D1 DE 69909621 T DE69909621 T DE 69909621T DE 69909621 T DE69909621 T DE 69909621T DE 69909621 D1 DE69909621 D1 DE 69909621D1
Authority
DE
Germany
Prior art keywords
phase current
define
current
identification
adjacent
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
DE69909621T
Other languages
English (en)
Inventor
D Dettloff
E Batchelor
A Heaton
B Steer
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.)
DB Tag Inc
Original Assignee
DB Tag 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 DB Tag Inc filed Critical DB Tag Inc
Application granted granted Critical
Publication of DE69909621D1 publication Critical patent/DE69909621D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
    • G06K7/10009—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves
    • G06K7/10316—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves using at least one antenna particularly designed for interrogating the wireless record carriers
    • G06K7/10346—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves using at least one antenna particularly designed for interrogating the wireless record carriers the antenna being of the far field type, e.g. HF types or dipoles
    • 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
    • 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
    • G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
    • G06K7/10009—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves
    • G06K7/10019—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves resolving collision on the communication channels between simultaneously or concurrently interrogated record carriers.
    • G06K7/10029—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves resolving collision on the communication channels between simultaneously or concurrently interrogated record carriers. the collision being resolved in the time domain, e.g. using binary tree search or RFID responses allocated to a random time slot
    • G06K7/10039—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves resolving collision on the communication channels between simultaneously or concurrently interrogated record carriers. the collision being resolved in the time domain, e.g. using binary tree search or RFID responses allocated to a random time slot interrogator driven, i.e. synchronous
    • 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
    • G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
    • G06K7/10009—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves
    • G06K7/10316—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves using at least one antenna particularly designed for interrogating the wireless record carriers
    • 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
    • G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
    • G06K7/10009—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves
    • G06K7/10316—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves using at least one antenna particularly designed for interrogating the wireless record carriers
    • G06K7/10336—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves using at least one antenna particularly designed for interrogating the wireless record carriers the antenna being of the near field type, inductive coil
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q7/00—Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop
DE69909621T 1998-05-18 1999-05-17 Anordnungen und verfahren zur drahtlosen leistungsprojektion mittels in-phase stromschleifen und zur identifizierung von hochfrequenzgesteuerten identifizierungsetiketten die gleichzeitig abgefragt werden Expired - Lifetime DE69909621D1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US8578898P 1998-05-18 1998-05-18
PCT/US1999/010877 WO1999060512A2 (en) 1998-05-18 1999-05-17 Systems and methods for wirelessly projecting power using in-phase current loops and for identifying radio frequency identification tags that are simultaneously interrogated

Publications (1)

Publication Number Publication Date
DE69909621D1 true DE69909621D1 (de) 2003-08-21

Family

ID=22193945

Family Applications (2)

Application Number Title Priority Date Filing Date
DE69909621T Expired - Lifetime DE69909621D1 (de) 1998-05-18 1999-05-17 Anordnungen und verfahren zur drahtlosen leistungsprojektion mittels in-phase stromschleifen und zur identifizierung von hochfrequenzgesteuerten identifizierungsetiketten die gleichzeitig abgefragt werden
DE1078329T Pending DE1078329T1 (de) 1998-05-18 1999-05-17 Anordnungen und verfahren zur drahtlosen leistungsprojektion mittels in-phase stromschleifen und zur identifizierung von hochfrequenzgesteuerten identifizierungsetiketten die gleichzeitig abgefragt werden

Family Applications After (1)

Application Number Title Priority Date Filing Date
DE1078329T Pending DE1078329T1 (de) 1998-05-18 1999-05-17 Anordnungen und verfahren zur drahtlosen leistungsprojektion mittels in-phase stromschleifen und zur identifizierung von hochfrequenzgesteuerten identifizierungsetiketten die gleichzeitig abgefragt werden

Country Status (7)

Country Link
US (2) US6388628B1 (de)
EP (1) EP1078329B1 (de)
AT (1) ATE245292T1 (de)
AU (1) AU4082599A (de)
DE (2) DE69909621D1 (de)
ES (1) ES2164624T1 (de)
WO (1) WO1999060512A2 (de)

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Also Published As

Publication number Publication date
US20020084940A1 (en) 2002-07-04
AU4082599A (en) 1999-12-06
EP1078329A2 (de) 2001-02-28
US6388628B1 (en) 2002-05-14
ES2164624T1 (es) 2002-03-01
EP1078329B1 (de) 2003-07-16
DE1078329T1 (de) 2002-04-04
WO1999060512A3 (en) 2000-02-17
ATE245292T1 (de) 2003-08-15
WO1999060512A2 (en) 1999-11-25
WO1999060512A9 (en) 2000-04-20

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