JPS5575351A - Input line switching circuit - Google Patents

Input line switching circuit

Info

Publication number
JPS5575351A
JPS5575351A JP14786278A JP14786278A JPS5575351A JP S5575351 A JPS5575351 A JP S5575351A JP 14786278 A JP14786278 A JP 14786278A JP 14786278 A JP14786278 A JP 14786278A JP S5575351 A JPS5575351 A JP S5575351A
Authority
JP
Japan
Prior art keywords
stand
switching
lines
caused
switching circuit
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.)
Pending
Application number
JP14786278A
Other languages
Japanese (ja)
Inventor
Jiro Mizukawa
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.)
Hitachi Denshi KK
Original Assignee
Hitachi Denshi KK
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 Hitachi Denshi KK filed Critical Hitachi Denshi KK
Priority to JP14786278A priority Critical patent/JPS5575351A/en
Publication of JPS5575351A publication Critical patent/JPS5575351A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/74—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for increasing reliability, e.g. using redundant or spare channels or apparatus

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)

Abstract

PURPOSE:To prevent the effect of the chattering caused at the switching time via the combination between the switch time holding timer and the set/reset FF, thus ensuring the switching between the using and stand-by lines without any malfunction caused. CONSTITUTION:The line alarm input is sent to terminal 10, and output alarm input is sent to using/stand-by line switching set/reset FF13 via terminal 11. And the using and stand-by designation output are delivered through terminals 17 and 18 respectively. Here using/stand-by switch time holding timer 14 is actuated simultaneously with operation of FF13 in order to prevent the chattering which is caused when the switching is given between the using stand-by lines with operation of FF13. Thus AND gate 15 is closed for a fixed time. In such way, the switching is possible between the using and stand-by lines with no malfunction caused.
JP14786278A 1978-12-01 1978-12-01 Input line switching circuit Pending JPS5575351A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14786278A JPS5575351A (en) 1978-12-01 1978-12-01 Input line switching circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14786278A JPS5575351A (en) 1978-12-01 1978-12-01 Input line switching circuit

Publications (1)

Publication Number Publication Date
JPS5575351A true JPS5575351A (en) 1980-06-06

Family

ID=15439925

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14786278A Pending JPS5575351A (en) 1978-12-01 1978-12-01 Input line switching circuit

Country Status (1)

Country Link
JP (1) JPS5575351A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0616272A1 (en) * 1993-03-18 1994-09-21 Eta SA Fabriques d'Ebauches Circuit for suppressing the bouncing effects during closing and opening of a contact in a watch

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0616272A1 (en) * 1993-03-18 1994-09-21 Eta SA Fabriques d'Ebauches Circuit for suppressing the bouncing effects during closing and opening of a contact in a watch
CH684622GA3 (en) * 1993-03-18 1994-11-15 Ebauchesfabrik Eta Ag Circuit to suppress the rebound effects of a contactor and watch comprising such a circuit.

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