JPS5691587A - Control circuit for switch - Google Patents

Control circuit for switch

Info

Publication number
JPS5691587A
JPS5691587A JP16969779A JP16969779A JPS5691587A JP S5691587 A JPS5691587 A JP S5691587A JP 16969779 A JP16969779 A JP 16969779A JP 16969779 A JP16969779 A JP 16969779A JP S5691587 A JPS5691587 A JP S5691587A
Authority
JP
Japan
Prior art keywords
switch
strobe signal
control
signal
path
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
JP16969779A
Other languages
Japanese (ja)
Other versions
JPH0131350B2 (en
Inventor
Shinichi Eguchi
Atsunobu Hayata
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP16969779A priority Critical patent/JPS5691587A/en
Publication of JPS5691587A publication Critical patent/JPS5691587A/en
Publication of JPH0131350B2 publication Critical patent/JPH0131350B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/222—Studio circuitry; Studio devices; Studio equipment
    • H04N5/262—Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects ; Cameras specially adapted for the electronic generation of special effects

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Studio Circuits (AREA)

Abstract

PURPOSE:To prevent malfunction even if chattering occurs at the contact of an input push button, by providing a path for a strobe signal and that for a control signal with delay means bearing prescribed relations. CONSTITUTION:The output path of encoder 9 and the strobe signal path of OR gate 5 are provided with interposing delay circuits D1 and D2 respectively. Delay times of thoss circuits D1 and d2 are so determined that while d1>>d2 with a switch turned on, d1<<d2 with the switch off. Consequently, the active period of a control in put is shorter than that of a strobe signal without fail and the active time of the strobe signal is included in that of the control input. As a result, when the control input is at level H, the storbe signal is at L, so that wrong switching information will not be sent to the switch. Thus, the control circuit for the switch which never malfunctions even if chattering occurs can be obtained.
JP16969779A 1979-12-26 1979-12-26 Control circuit for switch Granted JPS5691587A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16969779A JPS5691587A (en) 1979-12-26 1979-12-26 Control circuit for switch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16969779A JPS5691587A (en) 1979-12-26 1979-12-26 Control circuit for switch

Publications (2)

Publication Number Publication Date
JPS5691587A true JPS5691587A (en) 1981-07-24
JPH0131350B2 JPH0131350B2 (en) 1989-06-26

Family

ID=15891201

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16969779A Granted JPS5691587A (en) 1979-12-26 1979-12-26 Control circuit for switch

Country Status (1)

Country Link
JP (1) JPS5691587A (en)

Also Published As

Publication number Publication date
JPH0131350B2 (en) 1989-06-26

Similar Documents

Publication Publication Date Title
JPS57109089A (en) Initial value resetting circuit for operational amplifier
ES471916A1 (en) Solenoid drive circuits
JPS5691587A (en) Control circuit for switch
JPS5334243A (en) Device for diagnosing malfunction of elevator control unit
JPS5698033A (en) Switching system of standby transmission line
EP0298747A3 (en) Register
JPS56111320A (en) Voltage switching control circuit
JPS53129951A (en) Switching circuit
JPS56103701A (en) Preventing device for malfunction of control section
JPS5720026A (en) Touch switch circuit
JPS578471A (en) Electronic timepiece
JPS57150221A (en) On and off detecting circuit of switch
JPS5734217A (en) Constant voltage apparatus
JPS552308A (en) Signal input circuit
JPS5732110A (en) Time-constant switching device
JPS5769943A (en) Selecting callout device
JPS5788585A (en) Signal switching circuit
JPS5315051A (en) Chattering absorbing circuit of contacts
JPS6460108A (en) Bidirectional cmos analog switch
JPS544556A (en) Counter type encoder
JPS57108925A (en) Switch input circuit
JPS54151874A (en) Electronic watch
JPS56137541A (en) Preventing device for misoperation for tape recorder or the like
JPS6473505A (en) Magnetic recording and reproducing device
JPS5723121A (en) Constant-speed running device