AR002220A1 - METHOD FOR IDENTIFYING A PLURALITY OF TRANSMITTERS TRANSMITTING INTERVALS TO AT LEAST ONE RECEIVER; THE SET OF IDENTIFICATION TO PARAREALIZE IT; TRANSMITTER FOR SUCH ASSEMBLY AND THE INTEGRATED CIRCUIT INCLUDED IN SUCH TRANSMITTER. - Google Patents

METHOD FOR IDENTIFYING A PLURALITY OF TRANSMITTERS TRANSMITTING INTERVALS TO AT LEAST ONE RECEIVER; THE SET OF IDENTIFICATION TO PARAREALIZE IT; TRANSMITTER FOR SUCH ASSEMBLY AND THE INTEGRATED CIRCUIT INCLUDED IN SUCH TRANSMITTER.

Info

Publication number
AR002220A1
AR002220A1 ARP960105103A ARP960105103A AR002220A1 AR 002220 A1 AR002220 A1 AR 002220A1 AR P960105103 A ARP960105103 A AR P960105103A AR P960105103 A ARP960105103 A AR P960105103A AR 002220 A1 AR002220 A1 AR 002220A1
Authority
AR
Argentina
Prior art keywords
transmitter
receiver
transmitters
systems
intervals
Prior art date
Application number
ARP960105103A
Other languages
Spanish (es)
Inventor
Van Lodewyk Hendrik Eeden
Jacob Pieter Laurens Cloete
Original Assignee
British Tech Group
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 British Tech Group filed Critical British Tech Group
Publication of AR002220A1 publication Critical patent/AR002220A1/en

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
    • 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
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Toxicology (AREA)
  • Artificial Intelligence (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • General Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Electromagnetism (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Near-Field Transmission Systems (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)

Abstract

La presente invención provee un método y disposición que mejoran la probabilidad de identificación de un número de transmisores, típicamenteemisores receptores, que transmiten datos a un receptor. La invención es aplicable a ciertonúm ero de sistemas entre los cuales se encuentran sistemasemisores-receptores por radio frecuencia, sistemas en donde cierto número de transmisores auto-alimentados deben ser identificados por un receptor, osistemas en los cuales cierto númerode tra nsmisores transmiten utilizando un algoritmo de abandono y reintento aleatoriamente demorado. Cada transmisorse encuentra adaptado para transmitir a intervalos y comprende un medio para generar las transmisiones, un medio para calcularla dur ación de losintervalos entre las transmisiones sucesivas y un medio de activación a intervalos aleatorios o pseudoaleatorios referidos a una frecuencia deoperación del medio de sincronización local. En los sistemas RFIDpasivos, la f recuencia del medio de sincronización local es indeterminada, no pudiendo serespecificada hasta que el transmisor se encuentra en funcionamiento.The present invention provides a method and arrangement that improves the probability of identification of a number of transmitters, typically receiver transmitters, that transmit data to a receiver. The invention is applicable to a number of systems among which are radio frequency transmitter-receivers, systems where a certain number of self-powered transmitters must be identified by a receiver, or systems in which a certain number of transmitters transmit using an algorithm. Abandon and retry randomly delayed. Each transmitter is adapted to transmit at intervals and comprises a means for generating the transmissions, a means for calculating the duration of the intervals between successive transmissions and an activation means for random or pseudo-random intervals referring to an operating frequency of the local synchronization medium. In passive RFID systems, the frequency of the local synchronization medium is undetermined, and cannot be specified until the transmitter is in operation.

ARP960105103A 1995-11-09 1996-11-08 METHOD FOR IDENTIFYING A PLURALITY OF TRANSMITTERS TRANSMITTING INTERVALS TO AT LEAST ONE RECEIVER; THE SET OF IDENTIFICATION TO PARAREALIZE IT; TRANSMITTER FOR SUCH ASSEMBLY AND THE INTEGRATED CIRCUIT INCLUDED IN SUCH TRANSMITTER. AR002220A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ZA959519 1995-11-09

Publications (1)

Publication Number Publication Date
AR002220A1 true AR002220A1 (en) 1998-03-11

Family

ID=25585411

Family Applications (1)

Application Number Title Priority Date Filing Date
ARP960105103A AR002220A1 (en) 1995-11-09 1996-11-08 METHOD FOR IDENTIFYING A PLURALITY OF TRANSMITTERS TRANSMITTING INTERVALS TO AT LEAST ONE RECEIVER; THE SET OF IDENTIFICATION TO PARAREALIZE IT; TRANSMITTER FOR SUCH ASSEMBLY AND THE INTEGRATED CIRCUIT INCLUDED IN SUCH TRANSMITTER.

Country Status (11)

Country Link
EP (1) EP0859989A1 (en)
JP (1) JP2000500932A (en)
KR (1) KR19990067371A (en)
CN (1) CN1201540A (en)
AR (1) AR002220A1 (en)
AU (1) AU7502396A (en)
BR (1) BR9611705A (en)
CA (1) CA2235585A1 (en)
MX (1) MX9803671A (en)
TW (1) TW383527B (en)
WO (1) WO1997017667A1 (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2333623B (en) * 1998-01-24 2000-04-26 Plessey Telecomm Transaction system
GB2335573B (en) 1998-03-18 2000-03-15 Univ Singapore An RF transponder identification system and protocol
GB2344257A (en) 1998-11-26 2000-05-31 Innovision Research And Techno Data communication apparatus and board game
JP3001570B1 (en) 1999-02-22 2000-01-24 埼玉日本電気株式会社 Adaptive antenna directivity control method and system
WO2000072461A1 (en) 1999-05-21 2000-11-30 Koerner Ralph J Identification system for monitoring the presence/absence of members of a defined set
AU2001264504A1 (en) * 2000-06-12 2001-12-24 Telefonaktiebolaget Lm Ericsson (Publ) Random identity management in scatternets
KR100486754B1 (en) * 2000-08-31 2005-05-03 매그나칩 반도체 유한회사 Radio Frequency Identification Tag System for preventing collision and collision preventing method thereof
FR2833724A1 (en) * 2001-12-13 2003-06-20 Canal Plus Technologies DIGITAL ELECTRONIC COMPONENT PROTECTED AGAINST ELECTRICAL AND / OR ELECTROMAGNETIC ANALYZES, ESPECIALLY IN THE FIELD OF CHIP CARDS
GB0213724D0 (en) * 2002-06-14 2002-07-24 Turner Christopher G G Electronic identification system
WO2006079972A1 (en) * 2005-01-31 2006-08-03 Nxp B.V. Improved communication between a communication station and data carriers
KR100749818B1 (en) * 2005-09-23 2007-08-17 한국전자통신연구원 Apparatus and Method for Reading Multi Tag in RFID System
US20070126556A1 (en) * 2005-12-07 2007-06-07 Kovio, Inc. Printed radio frequency identification (RFID) tag using tags-talk-first (TTF) protocol
EP1956513B1 (en) 2007-02-07 2010-06-02 Albis Technologies AG Transmission protocol opening a dynamic window for receiving data
CN101604021B (en) * 2009-07-09 2012-05-09 复旦大学 Location method and device of wireless radio frequency identification system
KR20120011602A (en) * 2010-07-29 2012-02-08 삼성테크윈 주식회사 Communication control method of RFID reader

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4471345A (en) * 1982-03-05 1984-09-11 Sensormatic Electronics Corporation Randomized tag to portal communication system
FR2667715A1 (en) * 1990-10-09 1992-04-10 Gemplus Card Int METHOD AND DEVICE FOR INCREASING THE PROTECTION OF A MEMORY CARD.
US5530702A (en) * 1994-05-31 1996-06-25 Ludwig Kipp System for storage and communication of information

Also Published As

Publication number Publication date
CA2235585A1 (en) 1997-05-15
KR19990067371A (en) 1999-08-16
WO1997017667A1 (en) 1997-05-15
BR9611705A (en) 1999-02-23
MX9803671A (en) 1998-09-30
JP2000500932A (en) 2000-01-25
AU7502396A (en) 1997-05-29
CN1201540A (en) 1998-12-09
EP0859989A1 (en) 1998-08-26
TW383527B (en) 2000-03-01

Similar Documents

Publication Publication Date Title
AR002220A1 (en) METHOD FOR IDENTIFYING A PLURALITY OF TRANSMITTERS TRANSMITTING INTERVALS TO AT LEAST ONE RECEIVER; THE SET OF IDENTIFICATION TO PARAREALIZE IT; TRANSMITTER FOR SUCH ASSEMBLY AND THE INTEGRATED CIRCUIT INCLUDED IN SUCH TRANSMITTER.
EP1744267A2 (en) Reader, tags, radio frequency identification (RFID) system, and method thereof
CN100480710C (en) Method and apparatus for source device synchronization in a communication system
EP0285419B1 (en) Access control equipment
KR100719415B1 (en) Collision arbitration method and apparatus for reading multiple radio frequency identification tags
ES2094915T3 (en) ELECTRO-OPTICAL CONTROL SYSTEM.
US6754190B2 (en) Channel selection method used in a communication system
US7099469B2 (en) Method of scrambling and descrambling data in a communication system
EP1929798A2 (en) Methods and apparatus for asset tracking
EP2181438A1 (en) Method and apparatus for low power modulation and massive medium access control
WO2004102313A3 (en) Method and apparatus for selective blocking of radio frequency identification devices
WO2004102312A3 (en) Low-complexity cryptographic techniques for use with radio frequency identification devices
ES2163901T3 (en) PROCEDURE AND COMMUNICATION SYSTEM FOR THE TREATMENT OF ALARMS THROUGH A MANAGEMENT NETWORK THAT PRESENTS VARIOUS MANAGEMENT PLANS.
US9084113B2 (en) Wireless base station apparatus, wireless terminal apparatus, and base station authentication method
EP1069526A3 (en) Mobile body discrimination apparatus for rapidly acquiring respective data sets transmitted through modulation of reflected radio waves by transponders which are within a communication region of an interrogator apparatus
ATE277486T1 (en) METHOD AND APPARATUS FOR A CDMA RANDOM ACCESS COMMUNICATIONS SYSTEM
RU2019108780A (en) TERMINAL DEVICE, BASE STATION DEVICE, COMMUNICATION METHOD AND INTEGRATED CIRCUIT
ES2171011T3 (en) ISSUANCE PROCEDURE AND DEVICE FOR THE ISSUANCE OF DATA SYMBOLS THAT COME FROM SIGNALS OF SUBSCRIBERS THROUGH A RADIO INTERFACE OF A MOBILE COMMUNICATION SYSTEM.
WO2003034632A3 (en) Method and device for data communication in a multi-user system
US7706765B2 (en) Method and device for enabling and disabling group transmissions
WO1997017667A9 (en) Enhanced detection of multiple data transmissions
NO990445L (en) Broadband transmitter method and device
CA2103910A1 (en) Identification apparatus and method
ES2183235T3 (en) DISTANCE INTERROGATION COMMUNICATION SYSTEM THAT ALLOWS THE TRANSMISSION OF INHIBITION CONTROLS.
JP5190805B2 (en) Radar equipment