CN1161724C - 智能射频装置及其读取数据的方法 - Google Patents

智能射频装置及其读取数据的方法 Download PDF

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Publication number
CN1161724C
CN1161724C CNB988023016A CN98802301A CN1161724C CN 1161724 C CN1161724 C CN 1161724C CN B988023016 A CNB988023016 A CN B988023016A CN 98802301 A CN98802301 A CN 98802301A CN 1161724 C CN1161724 C CN 1161724C
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China
Prior art keywords
period
data
radio frequency
length
devices
Prior art date
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Expired - Fee Related
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CNB988023016A
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English (en)
Chinese (zh)
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CN1246947A (zh
Inventor
Լ����H����˹
约翰·H·鲍尔斯
�ɶ�ѷ
约翰·纳尔逊·戴格尔
ά
拉德·彼得罗维奇
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Checkpoint Systems Inc
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Checkpoint Systems Inc
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Publication date
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Publication of CN1246947A publication Critical patent/CN1246947A/zh
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Publication of CN1161724C publication Critical patent/CN1161724C/zh
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/02—Mechanical actuation
    • G08B13/14—Mechanical actuation by lifting or attempted removal of hand-portable articles
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/22—Electrical actuation
    • G08B13/24—Electrical actuation by interference with electromagnetic field distribution
    • G08B13/2402—Electronic Article Surveillance [EAS], i.e. systems using tags for detecting removal of a tagged item from a secure area, e.g. tags for detecting shoplifting
    • G08B13/2465—Aspects related to the EAS system, e.g. system components other than tags
    • G08B13/2485—Simultaneous detection of multiple EAS tags
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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 OR CALCULATING; 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
    • G06K7/10059—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 transponder driven
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/22—Electrical actuation
    • G08B13/24—Electrical actuation by interference with electromagnetic field distribution
    • G08B13/2402—Electronic Article Surveillance [EAS], i.e. systems using tags for detecting removal of a tagged item from a secure area, e.g. tags for detecting shoplifting
    • G08B13/2405—Electronic Article Surveillance [EAS], i.e. systems using tags for detecting removal of a tagged item from a secure area, e.g. tags for detecting shoplifting characterised by the tag technology used
    • G08B13/2414—Electronic Article Surveillance [EAS], i.e. systems using tags for detecting removal of a tagged item from a secure area, e.g. tags for detecting shoplifting characterised by the tag technology used using inductive tags
    • G08B13/2417—Electronic Article Surveillance [EAS], i.e. systems using tags for detecting removal of a tagged item from a secure area, e.g. tags for detecting shoplifting characterised by the tag technology used using inductive tags having a radio frequency identification chip
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/22—Electrical actuation
    • G08B13/24—Electrical actuation by interference with electromagnetic field distribution
    • G08B13/2402—Electronic Article Surveillance [EAS], i.e. systems using tags for detecting removal of a tagged item from a secure area, e.g. tags for detecting shoplifting
    • G08B13/2428—Tag details
    • G08B13/2431—Tag circuit details

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Automation & Control Theory (AREA)
  • Computer Security & Cryptography (AREA)
  • Toxicology (AREA)
  • Health & Medical Sciences (AREA)
  • Artificial Intelligence (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • General Health & Medical Sciences (AREA)
  • Near-Field Transmission Systems (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Burglar Alarm Systems (AREA)
CNB988023016A 1997-02-07 1998-01-22 智能射频装置及其读取数据的方法 Expired - Fee Related CN1161724C (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/796,645 1997-02-07
US08/796,645 US5883582A (en) 1997-02-07 1997-02-07 Anticollision protocol for reading multiple RFID tags

Publications (2)

Publication Number Publication Date
CN1246947A CN1246947A (zh) 2000-03-08
CN1161724C true CN1161724C (zh) 2004-08-11

Family

ID=25168688

Family Applications (1)

Application Number Title Priority Date Filing Date
CNB988023016A Expired - Fee Related CN1161724C (zh) 1997-02-07 1998-01-22 智能射频装置及其读取数据的方法

Country Status (10)

Country Link
US (1) US5883582A (enExample)
EP (1) EP0958561A4 (enExample)
JP (1) JP2001511276A (enExample)
KR (1) KR100475777B1 (enExample)
CN (1) CN1161724C (enExample)
AR (1) AR011119A1 (enExample)
AU (1) AU723246B2 (enExample)
CA (1) CA2279458A1 (enExample)
TW (1) TW399190B (enExample)
WO (1) WO1998035327A1 (enExample)

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EP0958561A4 (en) 2005-03-16
AU6031698A (en) 1998-08-26
CN1246947A (zh) 2000-03-08
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US5883582A (en) 1999-03-16
KR20000070892A (ko) 2000-11-25
WO1998035327A1 (en) 1998-08-13
AU723246B2 (en) 2000-08-24
TW399190B (en) 2000-07-21
AR011119A1 (es) 2000-08-02
JP2001511276A (ja) 2001-08-07
EP0958561A1 (en) 1999-11-24

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