JPS5773683A - Receiver - Google Patents

Receiver

Info

Publication number
JPS5773683A
JPS5773683A JP15045780A JP15045780A JPS5773683A JP S5773683 A JPS5773683 A JP S5773683A JP 15045780 A JP15045780 A JP 15045780A JP 15045780 A JP15045780 A JP 15045780A JP S5773683 A JPS5773683 A JP S5773683A
Authority
JP
Japan
Prior art keywords
gate
commercial frequency
opened
signal
drift
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
JP15045780A
Other languages
Japanese (ja)
Other versions
JPS637623B2 (en
Inventor
Chuji Okamura
Tadakatsu Watanabe
Koji Ito
Yukio Fujiwara
Masao Kaneko
Hirotoshi Nagata
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.)
Mitsubishi Electric Corp
Tokyo Electric Power Co Holdings Inc
Original Assignee
Tokyo Electric Power Co Inc
Mitsubishi Electric Corp
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 Tokyo Electric Power Co Inc, Mitsubishi Electric Corp filed Critical Tokyo Electric Power Co Inc
Priority to JP15045780A priority Critical patent/JPS5773683A/en
Publication of JPS5773683A publication Critical patent/JPS5773683A/en
Publication of JPS637623B2 publication Critical patent/JPS637623B2/ja
Granted 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
    • H04B1/06—Receivers
    • H04B1/16—Circuits

Landscapes

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

Abstract

PURPOSE:To investigate a high-resistance accident even in a section where a commercial frequency current flows while eliminating the need for calibrating operation, by providing a receiver with a DC drift compensating function, and a malfunction eliminating function of compensating malfunction due to the commercial frequency current. CONSTITUTION:The initial point of a signal arriving from an antenna 5 through an amplifier 8 is detected by a gate signal generator 13 to generate a successive gate opening signal. The 1st gate 9 is opened firstly at a reception point for a time which is an integer multiple of the perior of a commercial frequency and longer than the pulse width of a high-voltage pulse to pass the signal, which is then passed through a subtractor 15 having a function of subtracting the 2nd gate output from the 1st gate output to be integrated by an integrator 10. Then, the 2nd gate and 1st gate are opened for the same period, and the otput of the amplifier 8 is inverted in polarity by a subtractor 15 and then integrated. Lastly, a detection display gate 11 is opened for a time shorter than the period of high-voltage pulse appliecation to display the contents of the integrator 10 on a detection meter 12. Thus, DC drift, temperature drift and malfunction due to the commercial frequency are eliminated.
JP15045780A 1980-10-27 1980-10-27 Receiver Granted JPS5773683A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15045780A JPS5773683A (en) 1980-10-27 1980-10-27 Receiver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15045780A JPS5773683A (en) 1980-10-27 1980-10-27 Receiver

Publications (2)

Publication Number Publication Date
JPS5773683A true JPS5773683A (en) 1982-05-08
JPS637623B2 JPS637623B2 (en) 1988-02-17

Family

ID=15497340

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15045780A Granted JPS5773683A (en) 1980-10-27 1980-10-27 Receiver

Country Status (1)

Country Link
JP (1) JPS5773683A (en)

Also Published As

Publication number Publication date
JPS637623B2 (en) 1988-02-17

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