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
  • G06K7/10039—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
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B61—RAILWAYS
  • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
  • B61L25/00—Recording or indicating positions or identities of vehicles or vehicle trains or setting of track apparatus
  • B61L25/02—Indicating or recording positions or identities of vehicles or vehicle trains
  • B61L25/04—Indicating or recording train identities
  • B61L25/043—Indicating or recording train identities using inductive tags
• • G—PHYSICS
  • G06—COMPUTING; CALCULATING OR COUNTING
  • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
  • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
  • G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
  • G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
  • G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
  • G06K19/0723—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips the record carrier comprising an arrangement for non-contact communication, e.g. wireless communication circuits on transponder cards, non-contact smart cards or RFIDs
• • G—PHYSICS
  • G07—CHECKING-DEVICES
  • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
  • G07C9/00—Individual registration on entry or exit
  • G07C9/20—Individual registration on entry or exit involving the use of a pass
  • G07C9/28—Individual registration on entry or exit involving the use of a pass the pass enabling tracking or indicating presence

Applications Claiming Priority (1)

Publications (2)

Family

ID=19847916

Family Applications (1)

Country Status (13)

Families Citing this family (115)

Family Cites Families (32)

• 1986
  • 1986-04-22 NL NL8601021A patent/NL8601021A/nl not_active Application Discontinuation
• 1987
  • 1987-04-21 ES ES198787200633T patent/ES2027276T3/es not_active Expired - Lifetime
  • 1987-04-21 NO NO871647A patent/NO871647L/no unknown
  • 1987-04-21 EP EP87200633A patent/EP0242906B1/en not_active Expired - Lifetime
  • 1987-04-21 DE DE8787200633T patent/DE3774473D1/de not_active Expired - Fee Related
  • 1987-04-21 AT AT87200633T patent/ATE69517T1/de not_active IP Right Cessation
  • 1987-04-22 NZ NZ220034A patent/NZ220034A/xx unknown
  • 1987-04-22 AU AU71855/87A patent/AU589765B2/en not_active Ceased
  • 1987-04-22 DK DK205387A patent/DK205387A/da not_active Application Discontinuation
  • 1987-04-22 JP JP62099605A patent/JPH0691484B2/ja not_active Expired - Lifetime
  • 1987-04-22 IL IL82299A patent/IL82299A0/xx not_active IP Right Cessation
  • 1987-04-22 CA CA000535272A patent/CA1290841C/en not_active Expired - Fee Related
• 1990
  • 1990-08-14 US US07/566,830 patent/US5105190A/en not_active Expired - Fee Related
• 1992
  • 1992-12-29 JP JP4360878A patent/JPH0761032B2/ja not_active Expired - Lifetime

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