JPS55109039A - Action point detector circuit - Google Patents

Action point detector circuit

Info

Publication number
JPS55109039A
JPS55109039A JP1666079A JP1666079A JPS55109039A JP S55109039 A JPS55109039 A JP S55109039A JP 1666079 A JP1666079 A JP 1666079A JP 1666079 A JP1666079 A JP 1666079A JP S55109039 A JPS55109039 A JP S55109039A
Authority
JP
Japan
Prior art keywords
output
action point
terminal
switch
sampler
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
JP1666079A
Other languages
Japanese (ja)
Other versions
JPS6337980B2 (en
Inventor
Shuji Murakami
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 JP1666079A priority Critical patent/JPS55109039A/en
Publication of JPS55109039A publication Critical patent/JPS55109039A/en
Publication of JPS6337980B2 publication Critical patent/JPS6337980B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)

Abstract

PURPOSE: To omit the setting of the action point at the transmission side which is affected by the characteristics of the transmission line, by installing the circuit which detects the action point of the power amplifier of the repeater at the reception side after passed through the repeater.
CONSTITUTION: The modulated wave applied to terminal 201 is sampled by sampler 203 and with the cycle of the symbol timing signal applied to terminal 202. This sampling value is multiplied through multiplying circuit 204 to be applied to switch 205. At the same time, the output sampling value of sampler 203 is applied to amplitude detector 206, and this detection output controls switch 205. The two output of switch 205 are applied to 1st and 2nd filters 207 and 208, and the output of the 1st and 2nd filters are applied to phase comparator 209. Then the comparion output is delivered to terminal 210 in the form of the action point detection signal.
COPYRIGHT: (C)1980,JPO&Japio
JP1666079A 1979-02-14 1979-02-14 Action point detector circuit Granted JPS55109039A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1666079A JPS55109039A (en) 1979-02-14 1979-02-14 Action point detector circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1666079A JPS55109039A (en) 1979-02-14 1979-02-14 Action point detector circuit

Publications (2)

Publication Number Publication Date
JPS55109039A true JPS55109039A (en) 1980-08-21
JPS6337980B2 JPS6337980B2 (en) 1988-07-27

Family

ID=11922484

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1666079A Granted JPS55109039A (en) 1979-02-14 1979-02-14 Action point detector circuit

Country Status (1)

Country Link
JP (1) JPS55109039A (en)

Also Published As

Publication number Publication date
JPS6337980B2 (en) 1988-07-27

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