JPH02183397A - Radio guard system containing transmission checking function - Google Patents

Radio guard system containing transmission checking function

Info

Publication number
JPH02183397A
JPH02183397A JP138789A JP138789A JPH02183397A JP H02183397 A JPH02183397 A JP H02183397A JP 138789 A JP138789 A JP 138789A JP 138789 A JP138789 A JP 138789A JP H02183397 A JPH02183397 A JP H02183397A
Authority
JP
Japan
Prior art keywords
transmission
signals
transponders
transmission request
request signals
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
JP138789A
Other languages
Japanese (ja)
Other versions
JP3104973B2 (en
Inventor
Junichi Haga
Hiroyuki Akiyama
Original Assignee
Secom Co Ltd
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 Secom Co Ltd filed Critical Secom Co Ltd
Priority to JP01001387A priority Critical patent/JP3104973B2/en
Publication of JPH02183397A publication Critical patent/JPH02183397A/en
Application granted granted Critical
Publication of JP3104973B2 publication Critical patent/JP3104973B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Abstract

PURPOSE: To easily check the radio transmission state by using a control means which stores the transmitting frequency of the transmission request signals and the receiving frequency of the answer signals from a transponder.
CONSTITUTION: A repeater 3 includes a transmission part which transmits the transmission request signals to the transponders 2a - 2n, a reception part which receives the answer signals in response to the transmission request signals sent from the transponders 2a - 2n, and a control means which stores the transmitting frequency of the transmission request signals and the receiving frequency of the answer signals received from the transponders. Then a reception rate is calculated from the transmitting and receiving frequencies. As a result, the radio transmission state is easily known and therefore a radio transmission/ reception device can be set at a most proper position. Thus a guard system is attained with high reliability.
COPYRIGHT: (C)1990,JPO&Japio
JP01001387A 1989-01-10 1989-01-10 Wireless security system with propagation check function Expired - Fee Related JP3104973B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP01001387A JP3104973B2 (en) 1989-01-10 1989-01-10 Wireless security system with propagation check function

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP01001387A JP3104973B2 (en) 1989-01-10 1989-01-10 Wireless security system with propagation check function

Publications (2)

Publication Number Publication Date
JPH02183397A true JPH02183397A (en) 1990-07-17
JP3104973B2 JP3104973B2 (en) 2000-10-30

Family

ID=11500074

Family Applications (1)

Application Number Title Priority Date Filing Date
JP01001387A Expired - Fee Related JP3104973B2 (en) 1989-01-10 1989-01-10 Wireless security system with propagation check function

Country Status (1)

Country Link
JP (1) JP3104973B2 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005202810A (en) * 2004-01-19 2005-07-28 Eighting:Kk Person monitoring system
JP2009261974A (en) * 2009-07-06 2009-11-12 Nintendo Co Ltd Game system and game program
US7618325B2 (en) 2004-05-07 2009-11-17 Nintendo Co., Ltd. Game apparatus and storage medium storing game program
US7635305B2 (en) 2004-05-06 2009-12-22 Nintendo Co., Ltd. Game system and storage medium storing game program
JP2010002243A (en) * 2008-06-19 2010-01-07 Hokkaido Electric Power Co Inc:The Wiring route check system
JP2011053128A (en) * 2009-09-03 2011-03-17 Hokkaido Electric Power Co Inc:The Inspection system of wiring path
US20120108272A1 (en) * 2005-10-12 2012-05-03 Nintendo Co., Ltd. Position detecting system and position detecting program

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS592198A (en) * 1982-06-29 1984-01-07 Nippon Keibi Hosho Kk Security system
JPS61195649U (en) * 1985-05-28 1986-12-05

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS592198A (en) * 1982-06-29 1984-01-07 Nippon Keibi Hosho Kk Security system
JPS61195649U (en) * 1985-05-28 1986-12-05

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005202810A (en) * 2004-01-19 2005-07-28 Eighting:Kk Person monitoring system
US8393966B2 (en) 2004-05-06 2013-03-12 Nintendo Co., Ltd. Game system and storage medium storing game program
US7635305B2 (en) 2004-05-06 2009-12-22 Nintendo Co., Ltd. Game system and storage medium storing game program
US7618325B2 (en) 2004-05-07 2009-11-17 Nintendo Co., Ltd. Game apparatus and storage medium storing game program
US20120108272A1 (en) * 2005-10-12 2012-05-03 Nintendo Co., Ltd. Position detecting system and position detecting program
US8854279B2 (en) * 2005-10-12 2014-10-07 Nintendo Co., Ltd. Position detecting system and position detecting program
US10115373B2 (en) 2005-10-12 2018-10-30 Nintendo Co., Ltd. Position detecting system and position detecting program
JP2010002243A (en) * 2008-06-19 2010-01-07 Hokkaido Electric Power Co Inc:The Wiring route check system
JP2009261974A (en) * 2009-07-06 2009-11-12 Nintendo Co Ltd Game system and game program
JP2011053128A (en) * 2009-09-03 2011-03-17 Hokkaido Electric Power Co Inc:The Inspection system of wiring path

Also Published As

Publication number Publication date
JP3104973B2 (en) 2000-10-30

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