JPS63196146A - 信号受信装置 - Google Patents

信号受信装置

Info

Publication number
JPS63196146A
JPS63196146A JP2724387A JP2724387A JPS63196146A JP S63196146 A JPS63196146 A JP S63196146A JP 2724387 A JP2724387 A JP 2724387A JP 2724387 A JP2724387 A JP 2724387A JP S63196146 A JPS63196146 A JP S63196146A
Authority
JP
Japan
Prior art keywords
signal
low
impulsive noise
level
charging
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
JP2724387A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0517736B2 (enrdf_load_stackoverflow
Inventor
Sunao Ronte
素直 論手
Mitsuo Sato
佐藤　光夫
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.)
Anritsu Corp
Original Assignee
Anritsu 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 Anritsu Corp filed Critical Anritsu Corp
Priority to JP2724387A priority Critical patent/JPS63196146A/ja
Publication of JPS63196146A publication Critical patent/JPS63196146A/ja
Publication of JPH0517736B2 publication Critical patent/JPH0517736B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Monitoring And Testing Of Exchanges (AREA)
  • Noise Elimination (AREA)
JP2724387A 1987-02-10 1987-02-10 信号受信装置 Granted JPS63196146A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2724387A JPS63196146A (ja) 1987-02-10 1987-02-10 信号受信装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2724387A JPS63196146A (ja) 1987-02-10 1987-02-10 信号受信装置

Publications (2)

Publication Number Publication Date
JPS63196146A true JPS63196146A (ja) 1988-08-15
JPH0517736B2 JPH0517736B2 (enrdf_load_stackoverflow) 1993-03-10

Family

ID=12215638

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2724387A Granted JPS63196146A (ja) 1987-02-10 1987-02-10 信号受信装置

Country Status (1)

Country Link
JP (1) JPS63196146A (enrdf_load_stackoverflow)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56119506A (en) * 1980-02-26 1981-09-19 Matsushita Electric Ind Co Ltd Noise eliminating circuit
JPS57211891A (en) * 1981-06-24 1982-12-25 Fujitsu Ltd Tone detector

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56119506A (en) * 1980-02-26 1981-09-19 Matsushita Electric Ind Co Ltd Noise eliminating circuit
JPS57211891A (en) * 1981-06-24 1982-12-25 Fujitsu Ltd Tone detector

Also Published As

Publication number Publication date
JPH0517736B2 (enrdf_load_stackoverflow) 1993-03-10

Similar Documents

Publication Publication Date Title
US4645883A (en) Double talk and line noise detector for a echo canceller
US4066848A (en) Telephone ring detector circuit
US4495386A (en) Telephone extension system utilizing power line carrier signals
US4066843A (en) Telephone circuit monitoring system
US4156799A (en) Automatic disconnect circuit
US4282411A (en) Residual echo suppressor for echo canceller
AU6314699A (en) Digital signal processor-based telephone test set analysing and displaying multiple signal parameter data for terminal mode and line monitor mode operation
US4132860A (en) Hold control for a key telephone system
US4862491A (en) Remote disconnection and short-circuiting apparatus and method
US4012603A (en) Echo suppressor having self-adaptive means
US3851112A (en) Data detector with voice signal discrimination
US4468541A (en) Terminal equipment ring/ding suppression circuit
US4196321A (en) Loopback test system
US6269160B1 (en) Communications device including an improved CPE alerting signal (CAS) detection system
US3927264A (en) Dial pulse detector and method
US4177361A (en) Signaling tone transparent echo suppressor
US3772477A (en) Telephone dial pulse detection circuit
JPS63196146A (ja) 信号受信装置
US4336422A (en) Toll restrictor
US4675901A (en) Automatic disconnect device with protected ringer
US4152549A (en) Suppressor of spurious ringing currents for telephone apparatus
US3626101A (en) Loop extender for subscribers connected to a central office by abnormally long telephone lines
US4689816A (en) Three relay C. O. trunk interface
US4953206A (en) Methods of and apparatus for providing substantially error-free transmitted data
US3816669A (en) Apparatus for detecting telephone ringing signals