JPS6413824A - Signal detection circuit - Google Patents

Signal detection circuit

Info

Publication number
JPS6413824A
JPS6413824A JP17044787A JP17044787A JPS6413824A JP S6413824 A JPS6413824 A JP S6413824A JP 17044787 A JP17044787 A JP 17044787A JP 17044787 A JP17044787 A JP 17044787A JP S6413824 A JPS6413824 A JP S6413824A
Authority
JP
Japan
Prior art keywords
input signal
voltage
state
digital
digital value
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
JP17044787A
Other languages
Japanese (ja)
Inventor
Koichiro Takeda
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP17044787A priority Critical patent/JPS6413824A/en
Publication of JPS6413824A publication Critical patent/JPS6413824A/en
Pending legal-status Critical Current

Links

Landscapes

  • Radio Relay Systems (AREA)
  • Measurement Of Current Or Voltage (AREA)

Abstract

PURPOSE:To detect a signal power for consecutive modulated wave and a fault of a signal transmission system by outputting a digital value in response to an input signal level periodically even in the state of a consecutive signal state or a no-signal state. CONSTITUTION:The leading of a burst wave or a consecutive modulated wave is detected and when an input signal voltage exceeds a reference voltage, analog /digital conversion is applied by a 1st control means 15 for a prescribed period to send a digital output. Moreover, when the input signal voltage reaches a reference voltage or below and the voltage keeps the reference voltage or below even after a prescribed time elapses, a 2nd control means 17 applies analog/ digital conversion to send a digital value. Moreover, the digital value subjected to analog/digital conversion is aborted at the leading of the input signal voltage or the trailing in the transient reply state by the processing of the digital value control means 19.
JP17044787A 1987-07-08 1987-07-08 Signal detection circuit Pending JPS6413824A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17044787A JPS6413824A (en) 1987-07-08 1987-07-08 Signal detection circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17044787A JPS6413824A (en) 1987-07-08 1987-07-08 Signal detection circuit

Publications (1)

Publication Number Publication Date
JPS6413824A true JPS6413824A (en) 1989-01-18

Family

ID=15905098

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17044787A Pending JPS6413824A (en) 1987-07-08 1987-07-08 Signal detection circuit

Country Status (1)

Country Link
JP (1) JPS6413824A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2518043A1 (en) 2011-04-29 2012-10-31 Lonza Ltd. Process for the production of 4-chloroacetyl chloride, 4-chloroacetic acid esters, amides and imides

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2518043A1 (en) 2011-04-29 2012-10-31 Lonza Ltd. Process for the production of 4-chloroacetyl chloride, 4-chloroacetic acid esters, amides and imides
WO2012146604A1 (en) 2011-04-29 2012-11-01 Lonza Ltd Process for the production of 4-chloroacetoacetyl chloride, 4-chloroacetoacetic acid esters, amides and imides

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