SE456278B - Kommunikationssystem for dektering nerhelst en eller flera av ett flertal oberoende metanordningskretsar kommer inom reckvidden for en overvakningsstation - Google Patents

Kommunikationssystem for dektering nerhelst en eller flera av ett flertal oberoende metanordningskretsar kommer inom reckvidden for en overvakningsstation

Info

Publication number
SE456278B
SE456278B SE8301199A SE8301199A SE456278B SE 456278 B SE456278 B SE 456278B SE 8301199 A SE8301199 A SE 8301199A SE 8301199 A SE8301199 A SE 8301199A SE 456278 B SE456278 B SE 456278B
Authority
SE
Sweden
Prior art keywords
output
signal
counter
gate
clock
Prior art date
Application number
SE8301199A
Other languages
English (en)
Swedish (sv)
Other versions
SE8301199L (sv
SE8301199D0 (sv
Inventor
Jr R L Barrett
Original Assignee
Sensormatic Electronics 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 Sensormatic Electronics Corp filed Critical Sensormatic Electronics Corp
Publication of SE8301199D0 publication Critical patent/SE8301199D0/xx
Publication of SE8301199L publication Critical patent/SE8301199L/
Publication of SE456278B publication Critical patent/SE456278B/sv

Links

Classifications

    • 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
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K17/00—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations
    • G06K17/0022—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations arrangements or provisions for transferring data to distant stations, e.g. from a sensing device
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Artificial Intelligence (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Toxicology (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • General Engineering & Computer Science (AREA)
  • Electromagnetism (AREA)
  • General Health & Medical Sciences (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Burglar Alarm Systems (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
  • Lock And Its Accessories (AREA)
SE8301199A 1982-03-05 1983-03-04 Kommunikationssystem for dektering nerhelst en eller flera av ett flertal oberoende metanordningskretsar kommer inom reckvidden for en overvakningsstation SE456278B (sv)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/354,156 US4471345A (en) 1982-03-05 1982-03-05 Randomized tag to portal communication system

Publications (3)

Publication Number Publication Date
SE8301199D0 SE8301199D0 (sv) 1983-03-04
SE8301199L SE8301199L (sv) 1983-09-06
SE456278B true SE456278B (sv) 1988-09-19

Family

ID=23392089

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8301199A SE456278B (sv) 1982-03-05 1983-03-04 Kommunikationssystem for dektering nerhelst en eller flera av ett flertal oberoende metanordningskretsar kommer inom reckvidden for en overvakningsstation

Country Status (15)

Country Link
US (1) US4471345A (en:Method)
JP (1) JPS58162881A (en:Method)
AR (1) AR231364A1 (en:Method)
BE (1) BE895864A (en:Method)
BR (1) BR8301091A (en:Method)
CA (1) CA1211522A (en:Method)
DE (1) DE3305685C2 (en:Method)
ES (1) ES8407270A1 (en:Method)
FR (1) FR2522829B1 (en:Method)
GB (1) GB2116808B (en:Method)
IE (1) IE830193L (en:Method)
IT (2) IT8309358A1 (en:Method)
MX (1) MX155097A (en:Method)
NL (1) NL8300643A (en:Method)
SE (1) SE456278B (en:Method)

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AR231364A1 (es) 1984-10-31
IT8309358A0 (it) 1983-03-04
NL8300643A (nl) 1983-10-03
DE3305685A1 (de) 1983-09-15
MX155097A (es) 1988-01-26
IE830193L (en) 1983-09-05
JPH032271B2 (en:Method) 1991-01-14
ES519769A0 (es) 1984-08-16
CA1211522A (en) 1986-09-16
JPS58162881A (ja) 1983-09-27
SE8301199L (sv) 1983-09-06
BE895864A (fr) 1983-05-30
FR2522829B1 (fr) 1986-09-05
GB2116808A (en) 1983-09-28
IT1198536B (it) 1988-12-21
IT8309358A1 (it) 1984-09-01
ES8407270A1 (es) 1984-08-16
DE3305685C2 (de) 1995-10-19
US4471345A (en) 1984-09-11
FR2522829A1 (fr) 1983-09-09
GB2116808B (en) 1986-10-22
GB8305854D0 (en) 1983-04-07
SE8301199D0 (sv) 1983-03-04
BR8301091A (pt) 1983-11-22

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