JPS55117371A - Transmission method for analog telephone signal - Google Patents

Transmission method for analog telephone signal

Info

Publication number
JPS55117371A
JPS55117371A JP2477379A JP2477379A JPS55117371A JP S55117371 A JPS55117371 A JP S55117371A JP 2477379 A JP2477379 A JP 2477379A JP 2477379 A JP2477379 A JP 2477379A JP S55117371 A JPS55117371 A JP S55117371A
Authority
JP
Japan
Prior art keywords
signal
circuit
terminal
operations
suited
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
JP2477379A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6314544B2 (enrdf_load_stackoverflow
Inventor
Shinichi Aiko
Kunihiko Niwa
Takeshi Sawai
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 JP2477379A priority Critical patent/JPS55117371A/ja
Publication of JPS55117371A publication Critical patent/JPS55117371A/ja
Publication of JPS6314544B2 publication Critical patent/JPS6314544B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B14/00—Transmission systems not characterised by the medium used for transmission
    • H04B14/02—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation
    • H04B14/06—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation using differential modulation, e.g. delta modulation
    • H04B14/062—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation using differential modulation, e.g. delta modulation using delta modulation or one-bit differential modulation [1DPCM]
    • H04B14/064—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation using differential modulation, e.g. delta modulation using delta modulation or one-bit differential modulation [1DPCM] with adaptive feedback

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
JP2477379A 1979-03-02 1979-03-02 Transmission method for analog telephone signal Granted JPS55117371A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2477379A JPS55117371A (en) 1979-03-02 1979-03-02 Transmission method for analog telephone signal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2477379A JPS55117371A (en) 1979-03-02 1979-03-02 Transmission method for analog telephone signal

Publications (2)

Publication Number Publication Date
JPS55117371A true JPS55117371A (en) 1980-09-09
JPS6314544B2 JPS6314544B2 (enrdf_load_stackoverflow) 1988-03-31

Family

ID=12147482

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2477379A Granted JPS55117371A (en) 1979-03-02 1979-03-02 Transmission method for analog telephone signal

Country Status (1)

Country Link
JP (1) JPS55117371A (enrdf_load_stackoverflow)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58111559A (ja) * 1981-12-25 1983-07-02 Nec Corp デジタル複合端末切換方式
JPS6072329A (ja) * 1983-09-28 1985-04-24 Nec Corp 反響制御装置用自動デイセイブラ
JPS6072331A (ja) * 1983-09-28 1985-04-24 Nec Corp 反響制御装置用自動デイセイブラ
JPS60219818A (ja) * 1984-04-17 1985-11-02 Fujitsu Ten Ltd 無線装置
JPS63141423A (ja) * 1986-12-03 1988-06-13 Matsushita Electric Ind Co Ltd 符号化復号化装置

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4839104A (enrdf_load_stackoverflow) * 1971-09-22 1973-06-08
JPS5084103A (enrdf_load_stackoverflow) * 1973-11-27 1975-07-07

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4839104A (enrdf_load_stackoverflow) * 1971-09-22 1973-06-08
JPS5084103A (enrdf_load_stackoverflow) * 1973-11-27 1975-07-07

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58111559A (ja) * 1981-12-25 1983-07-02 Nec Corp デジタル複合端末切換方式
JPS6072329A (ja) * 1983-09-28 1985-04-24 Nec Corp 反響制御装置用自動デイセイブラ
JPS6072331A (ja) * 1983-09-28 1985-04-24 Nec Corp 反響制御装置用自動デイセイブラ
JPS60219818A (ja) * 1984-04-17 1985-11-02 Fujitsu Ten Ltd 無線装置
JPS63141423A (ja) * 1986-12-03 1988-06-13 Matsushita Electric Ind Co Ltd 符号化復号化装置

Also Published As

Publication number Publication date
JPS6314544B2 (enrdf_load_stackoverflow) 1988-03-31

Similar Documents

Publication Publication Date Title
EP0343630A3 (en) Terminal apparatus for resetting by remote control
JPS57121345A (en) Pulse noise eliminating circuit
JPS6477339A (en) Collision detecting type lan terminal interface module
MY131794A (en) Communications channel testing equipment
JPS55117371A (en) Transmission method for analog telephone signal
ATE40026T1 (de) Signalausfall-korrigierschaltung zum korrigieren von durch signalausfaelle gestoerten videosignalen.
ES8704057A1 (es) Un circuito hibrido digital
JPS5644261A (en) Facsimile unit
JPS57148479A (en) Apparatus controlling system
JPS57190473A (en) Switching unit for high frequency video signal
EP0184644A3 (en) Transformer coupled, solid state communication line switch
JPS558113A (en) Stereo demodulation circuit
JPS57133755A (en) Branch coupling circuit for conference telephone set
JPS55145460A (en) Communication terminal unit and its exchange network
JPS5781762A (en) Terminal mode switching signal system for digital telephone
JPS5614747A (en) Switchboard
JPS5739646A (en) Interruption controlling system during communication
JPS57184340A (en) Switching circuit of receiver
JPS5779747A (en) Coupling circuit
JPS5763964A (en) Aural switch circuit
BG103245A (en) Device for switching between terminals of different telephone networks
JPS553221A (en) Signal transmission/reception system
JPS57178470A (en) Terminal feeding system
JPS6465934A (en) Line switching device
YU194780A (en) Circuit assembly for connecting a modem arrangement for transmission to the telephone line