JPS6331840B2 - - Google Patents

Info

Publication number
JPS6331840B2
JPS6331840B2 JP5486381A JP5486381A JPS6331840B2 JP S6331840 B2 JPS6331840 B2 JP S6331840B2 JP 5486381 A JP5486381 A JP 5486381A JP 5486381 A JP5486381 A JP 5486381A JP S6331840 B2 JPS6331840 B2 JP S6331840B2
Authority
JP
Japan
Prior art keywords
circuit
signal
output
pulse
detector
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.)
Expired
Application number
JP5486381A
Other languages
English (en)
Japanese (ja)
Other versions
JPS57169892A (en
Inventor
Hironori Tatsumi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP5486381A priority Critical patent/JPS57169892A/ja
Publication of JPS57169892A publication Critical patent/JPS57169892A/ja
Publication of JPS6331840B2 publication Critical patent/JPS6331840B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Alarm Systems (AREA)
  • Fire Alarms (AREA)
JP5486381A 1981-04-10 1981-04-10 Discriminator for detecting point Granted JPS57169892A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5486381A JPS57169892A (en) 1981-04-10 1981-04-10 Discriminator for detecting point

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5486381A JPS57169892A (en) 1981-04-10 1981-04-10 Discriminator for detecting point

Publications (2)

Publication Number Publication Date
JPS57169892A JPS57169892A (en) 1982-10-19
JPS6331840B2 true JPS6331840B2 (2) 1988-06-27

Family

ID=12982422

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5486381A Granted JPS57169892A (en) 1981-04-10 1981-04-10 Discriminator for detecting point

Country Status (1)

Country Link
JP (1) JPS57169892A (2)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6082389U (ja) * 1983-11-08 1985-06-07 ニツタン株式会社 情報伝送装置

Also Published As

Publication number Publication date
JPS57169892A (en) 1982-10-19

Similar Documents

Publication Publication Date Title
US4613848A (en) Multiple-zone intrusion detection system
US3665461A (en) Apparatus for monitoring the conductors or lines of fire alarm installations
US4749853A (en) Light barrier having multiplexer for actuating transceiver pairs and multiple channel operation
US5809013A (en) Message packet management in a wireless security system
US5761206A (en) Message packet protocol for communication of remote sensor information in a wireless security system
US3848231A (en) Alarm system utilizing pulse position modulation and dual conductor sensor
US4491830A (en) Fire alarm system
US4068105A (en) Central station system transmission apparatus
JPH0518159B2 (2)
US4751498A (en) Single-wire loop alarm system
WO1981000655A1 (fr) Systeme de transmission de donnees par fil
SE458971B (sv) Fotoelektrisk roekdetektorterminal
US4498074A (en) Selectively testable fire detector
US5872512A (en) Apparatus and method for reducing errors in a battery operated sensing circuit
JPS6331840B2 (2)
JPS6356589B2 (2)
US4647920A (en) Fault detector
US3916405A (en) System for supervision of rooms or buildings
RU128757U1 (ru) Система контроля состояния дискретных источников сигналов
JPH06325273A (ja) 紫外線式感知器
JPS58223895A (ja) 火災報知設備
JP2763605B2 (ja) 火災感知器
SU896651A1 (ru) Устройство дл тревожной сигнализации
US3588889A (en) Electrical signaling system including selectively variable impedance device
JPS6028341A (ja) 環境異常伝送装置