JPS5567229A - Pulse detection circuit - Google Patents

Pulse detection circuit

Info

Publication number
JPS5567229A
JPS5567229A JP14010578A JP14010578A JPS5567229A JP S5567229 A JPS5567229 A JP S5567229A JP 14010578 A JP14010578 A JP 14010578A JP 14010578 A JP14010578 A JP 14010578A JP S5567229 A JPS5567229 A JP S5567229A
Authority
JP
Japan
Prior art keywords
pulses
potential
terminal
detection circuit
capacitor
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
JP14010578A
Other languages
Japanese (ja)
Inventor
Shinichi Kobayashi
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 Electric Appliances Co Ltd
Toshiba Denki Kigu KK
Original Assignee
Toshiba Electric Appliances Co Ltd
Toshiba Denki Kigu 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 Toshiba Electric Appliances Co Ltd, Toshiba Denki Kigu KK filed Critical Toshiba Electric Appliances Co Ltd
Priority to JP14010578A priority Critical patent/JPS5567229A/en
Publication of JPS5567229A publication Critical patent/JPS5567229A/en
Pending legal-status Critical Current

Links

Landscapes

  • Debugging And Monitoring (AREA)
  • Manipulation Of Pulses (AREA)

Abstract

PURPOSE: To make it possible to detect anomaly of a device controlling micro computer easily by combining a unilateral element and a capacitive element and generating a prescribed potential at the output.
CONSTITUTION: Clock pulses are inputted to micro computer 2, and pulses of, for example, 100Hz are sent from buffer 3 on a basis of a program determined previously. These pulses are supplied to diodes 8 and 9 through capacitor 7 of detection circuit 1. Capacitor 11 is connected between the anode of diode 8 and the cathode of diode 9. Consequently, the potential at output terminal 6 is negative when regulator pulses are outputted from buffer 3, and meanwhile, terminal 6 is zero- potential when pulses disappear or the frequency of pulse is a value below 50Hz. As a result, normalcy of the computer can be detected by detecting the potential at terminal 6.
COPYRIGHT: (C)1980,JPO&Japio
JP14010578A 1978-11-14 1978-11-14 Pulse detection circuit Pending JPS5567229A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14010578A JPS5567229A (en) 1978-11-14 1978-11-14 Pulse detection circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14010578A JPS5567229A (en) 1978-11-14 1978-11-14 Pulse detection circuit

Publications (1)

Publication Number Publication Date
JPS5567229A true JPS5567229A (en) 1980-05-21

Family

ID=15261046

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14010578A Pending JPS5567229A (en) 1978-11-14 1978-11-14 Pulse detection circuit

Country Status (1)

Country Link
JP (1) JPS5567229A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0247917A (en) * 1988-07-05 1990-02-16 Internatl Business Mach Corp <Ibm> Missing pulse detector
JP2006311182A (en) * 2005-04-28 2006-11-09 Seiko Instruments Inc Clock detection circuit

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4841888U (en) * 1971-09-25 1973-05-29
JPS527521B2 (en) * 1971-09-10 1977-03-03

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS527521B2 (en) * 1971-09-10 1977-03-03
JPS4841888U (en) * 1971-09-25 1973-05-29

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0247917A (en) * 1988-07-05 1990-02-16 Internatl Business Mach Corp <Ibm> Missing pulse detector
JP2006311182A (en) * 2005-04-28 2006-11-09 Seiko Instruments Inc Clock detection circuit

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