AR247961A1 - Circuito de cancelacion de diafonia para video telefono. - Google Patents

Circuito de cancelacion de diafonia para video telefono.

Info

Publication number
AR247961A1
AR247961A1 AR88312716A AR31271688A AR247961A1 AR 247961 A1 AR247961 A1 AR 247961A1 AR 88312716 A AR88312716 A AR 88312716A AR 31271688 A AR31271688 A AR 31271688A AR 247961 A1 AR247961 A1 AR 247961A1
Authority
AR
Argentina
Prior art keywords
cancellation circuit
crosstalk cancellation
transformer
video telephones
circuit
Prior art date
Application number
AR88312716A
Other languages
English (en)
Original Assignee
Myukomu Kk
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 Myukomu Kk filed Critical Myukomu Kk
Application granted granted Critical
Publication of AR247961A1 publication Critical patent/AR247961A1/es

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
    • 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
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/40—Circuits
    • H04B1/54—Circuits using the same frequency for two directions of communication
    • H04B1/58—Hybrid arrangements, i.e. arrangements for transition from single-path two-direction transmission to single-direction transmission on each of two paths or vice versa
    • H04B1/586—Hybrid arrangements, i.e. arrangements for transition from single-path two-direction transmission to single-direction transmission on each of two paths or vice versa using an electronic circuit

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Telephonic Communication Services (AREA)
  • Noise Elimination (AREA)
  • Recording Or Reproducing By Magnetic Means (AREA)

Abstract

CIRCUITO DE CANCELACION DE DIAFONIA, QUE COMPRENDE UN CIRCUITO HIBRIDO COMPUESTO DE UN TRANSFORMADOR Y AMPLIFICADORES OPERACIONALES DE ENTRADA Y SALIDA CONFORMANDO UN PUENTE; UN CIRCUITO COMPENSADOR DE AMPLITUD Y UN CIRCUITO COMPENSADOR DE FASE CONECTADOS EN SERIE ENTRE SI Y EN DERIVACION RESPECTO A DICHOS AMPLIFICADORES OPERACIONALES DE ENTRADA Y SALIDA, EN TANTO QUE UN CIRCUITO COMPENSADOR DE FASE SE ENCUENTRA INTERCALADO ENTRE EL TRANSFORMADOR Y EL AMPLIFICADOR OPERACIONAL DE SALIDA.
AR88312716A 1987-12-16 1988-12-14 Circuito de cancelacion de diafonia para video telefono. AR247961A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62315994A JPH0787404B2 (ja) 1987-12-16 1987-12-16 テレビ電話機に使用する伝送装置

Publications (1)

Publication Number Publication Date
AR247961A1 true AR247961A1 (es) 1995-04-28

Family

ID=18072054

Family Applications (1)

Application Number Title Priority Date Filing Date
AR88312716A AR247961A1 (es) 1987-12-16 1988-12-14 Circuito de cancelacion de diafonia para video telefono.

Country Status (14)

Country Link
EP (1) EP0321153A3 (es)
JP (1) JPH0787404B2 (es)
KR (1) KR930008706B1 (es)
CN (1) CN1023626C (es)
AR (1) AR247961A1 (es)
AU (2) AU617141B2 (es)
BR (1) BR8806687A (es)
CA (1) CA1296439C (es)
DK (1) DK693288A (es)
FI (1) FI885770A (es)
ID (1) ID887B (es)
NO (1) NO885546L (es)
NZ (1) NZ227331A (es)
PT (1) PT89220B (es)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002037767A1 (en) * 2000-11-06 2002-05-10 Josuya Technology Corp. Data communication system for compensating the attenuation of transmission signal
EP1466423A1 (en) * 2001-12-26 2004-10-13 GlobeSpan Virata, Inc. Simple adaptive hybrid circuit
US7738654B2 (en) * 2004-12-02 2010-06-15 Solarflare Communications, Inc. Isolation of transmit and receive signals

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2576115A (en) * 1947-02-07 1951-11-27 Int Standard Electric Corp Arrangement for transmitting electric signals occupying a wide frequency band over narrow band circuits
US3974337A (en) * 1967-10-24 1976-08-10 Matsushita Electric Industrial Co., Ltd. FM television telephone system
JPS5168708A (es) * 1974-12-11 1976-06-14 Ricoh Kk
US4064377A (en) * 1976-03-11 1977-12-20 Wescom Switching, Inc. Electronic hybrid and hybrid repeater
JPS5649029A (en) * 1979-09-26 1981-05-02 Yoshinobu Yasufuku Manufacture of flier
JPS5979644A (ja) * 1982-10-29 1984-05-08 Anritsu Corp 電子ハイブリツド回路
DE3640127A1 (de) * 1986-11-25 1988-06-01 Standard Elektrik Lorenz Ag Elektronische gabelschaltung

Also Published As

Publication number Publication date
BR8806687A (pt) 1989-08-29
KR930008706B1 (ko) 1993-09-13
ID887B (id) 1996-09-03
NO885546L (no) 1989-06-19
CN1035403A (zh) 1989-09-06
AU617141B2 (en) 1991-11-21
JPH0787404B2 (ja) 1995-09-20
DK693288D0 (da) 1988-12-13
AU2681388A (en) 1989-06-22
AU637541B2 (en) 1993-05-27
KR890011228A (ko) 1989-08-14
PT89220B (pt) 1994-06-30
NO885546D0 (no) 1988-12-14
JPH01158834A (ja) 1989-06-21
CN1023626C (zh) 1994-01-26
EP0321153A2 (en) 1989-06-21
PT89220A (pt) 1989-09-14
DK693288A (da) 1989-06-17
NZ227331A (en) 1991-10-25
FI885770A0 (fi) 1988-12-13
CA1296439C (en) 1992-02-25
FI885770A (fi) 1989-06-17
AU1092692A (en) 1992-07-16
EP0321153A3 (en) 1990-10-10

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