JPS5620331A - Switch circuit - Google Patents

Switch circuit

Info

Publication number
JPS5620331A
JPS5620331A JP9504579A JP9504579A JPS5620331A JP S5620331 A JPS5620331 A JP S5620331A JP 9504579 A JP9504579 A JP 9504579A JP 9504579 A JP9504579 A JP 9504579A JP S5620331 A JPS5620331 A JP S5620331A
Authority
JP
Japan
Prior art keywords
switch
output
3out
depressed
high level
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
JP9504579A
Other languages
Japanese (ja)
Other versions
JPH0136287B2 (en
Inventor
Toshinori Ishigaki
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP9504579A priority Critical patent/JPS5620331A/en
Publication of JPS5620331A publication Critical patent/JPS5620331A/en
Publication of JPH0136287B2 publication Critical patent/JPH0136287B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking

Landscapes

  • Electronic Switches (AREA)
  • Input From Keyboards Or The Like (AREA)

Abstract

PURPOSE:To make it possible to prevent interface signal lines from increasing in number as well as an increase in space, by providing a single switch with switching functions equivalent to those of a few switches. CONSTITUTION:As for the operation of a switch, depressing switch SW permits the output of RSF/FF1 to rise and signal PRC is at a high level, so that as far as switch SW is depressed, output signal SWS of gate 7 will at a low level as shown by A. This serves as a clock for shift register 2, whose output 21 is at a high level. On the other hand, since 3OUT is at a high level, the output of gate 4 sets one-shot FF3 as signal SWS changes in level. Once switch SW is depressed again before this 3OUT rises, output signal SWS is at the low level while switch SW is being depressed and similarly, output 22 of register 2 shows ''1''. At this time, 3OUT is at the low level and never sets the FF3. Consequently, interface signal lines can be prevented from increasing in number as well as an increase in space.
JP9504579A 1979-07-27 1979-07-27 Switch circuit Granted JPS5620331A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9504579A JPS5620331A (en) 1979-07-27 1979-07-27 Switch circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9504579A JPS5620331A (en) 1979-07-27 1979-07-27 Switch circuit

Publications (2)

Publication Number Publication Date
JPS5620331A true JPS5620331A (en) 1981-02-25
JPH0136287B2 JPH0136287B2 (en) 1989-07-31

Family

ID=14127090

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9504579A Granted JPS5620331A (en) 1979-07-27 1979-07-27 Switch circuit

Country Status (1)

Country Link
JP (1) JPS5620331A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5879332A (en) * 1981-11-05 1983-05-13 Nissan Shatai Co Ltd Control switch

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5567962A (en) * 1978-11-14 1980-05-22 Teac Co Mode selective switching unit

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5567962A (en) * 1978-11-14 1980-05-22 Teac Co Mode selective switching unit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5879332A (en) * 1981-11-05 1983-05-13 Nissan Shatai Co Ltd Control switch

Also Published As

Publication number Publication date
JPH0136287B2 (en) 1989-07-31

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