TW200711344A - Ramped interrogation power levels - Google Patents

Ramped interrogation power levels

Info

Publication number
TW200711344A
TW200711344A TW095124214A TW95124214A TW200711344A TW 200711344 A TW200711344 A TW 200711344A TW 095124214 A TW095124214 A TW 095124214A TW 95124214 A TW95124214 A TW 95124214A TW 200711344 A TW200711344 A TW 200711344A
Authority
TW
Taiwan
Prior art keywords
signal
ramped
power levels
devices
interrogation power
Prior art date
Application number
TW095124214A
Other languages
English (en)
Inventor
Roger Green Stewart
William R Bemiss
Original Assignee
Intelleflex 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 Intelleflex Corp filed Critical Intelleflex Corp
Publication of TW200711344A publication Critical patent/TW200711344A/zh

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
    • G06K7/10019—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
    • 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
    • G06K7/10316—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
    • G06K7/10356—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 using a plurality of antennas, e.g. configurations including means to resolve interference between the plurality of antennas

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Toxicology (AREA)
  • Health & Medical Sciences (AREA)
  • Artificial Intelligence (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Electromagnetism (AREA)
  • General Health & Medical Sciences (AREA)
  • Near-Field Transmission Systems (AREA)
  • Radar Systems Or Details Thereof (AREA)
TW095124214A 2005-07-20 2006-07-03 Ramped interrogation power levels TW200711344A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US11/186,494 US8872633B2 (en) 2005-07-20 2005-07-20 Ramped interrogation power levels

Publications (1)

Publication Number Publication Date
TW200711344A true TW200711344A (en) 2007-03-16

Family

ID=37102082

Family Applications (1)

Application Number Title Priority Date Filing Date
TW095124214A TW200711344A (en) 2005-07-20 2006-07-03 Ramped interrogation power levels

Country Status (6)

Country Link
US (1) US8872633B2 (zh)
EP (1) EP1904948B1 (zh)
CN (1) CN101218591A (zh)
ES (1) ES2449742T3 (zh)
TW (1) TW200711344A (zh)
WO (1) WO2007018840A2 (zh)

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* Cited by examiner, † Cited by third party
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI384248B (zh) * 2008-09-26 2013-02-01 Mstar Semiconductor Inc 物件定位系統及物件定位方法

Also Published As

Publication number Publication date
CN101218591A (zh) 2008-07-09
EP1904948A2 (en) 2008-04-02
US8872633B2 (en) 2014-10-28
US20070018793A1 (en) 2007-01-25
WO2007018840A3 (en) 2007-06-07
EP1904948B1 (en) 2014-01-22
ES2449742T3 (es) 2014-03-21
WO2007018840A2 (en) 2007-02-15

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