IL108954A - Switching device for transmitting communication signals - Google Patents

Switching device for transmitting communication signals

Info

Publication number
IL108954A
IL108954A IL10895494A IL10895494A IL108954A IL 108954 A IL108954 A IL 108954A IL 10895494 A IL10895494 A IL 10895494A IL 10895494 A IL10895494 A IL 10895494A IL 108954 A IL108954 A IL 108954A
Authority
IL
Israel
Prior art keywords
filter
exchange
passive filter
switching device
signals
Prior art date
Application number
IL10895494A
Other languages
English (en)
Hebrew (he)
Other versions
IL108954A0 (en
Original Assignee
Kommunikations Elektronik
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 Kommunikations Elektronik filed Critical Kommunikations Elektronik
Publication of IL108954A0 publication Critical patent/IL108954A0/xx
Publication of IL108954A publication Critical patent/IL108954A/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M15/00—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP
    • H04M15/28—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP with meter at substation or with calculation of charges at terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/738—Interface circuits for coupling substations to external telephone lines
    • H04M1/74—Interface circuits for coupling substations to external telephone lines with means for reducing interference; with means for reducing effects due to line faults

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Interface Circuits In Exchanges (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Telephonic Communication Services (AREA)
  • Meter Arrangements (AREA)
  • Inspection Of Paper Currency And Valuable Securities (AREA)
  • Transmitters (AREA)
  • Networks Using Active Elements (AREA)
IL10895494A 1993-03-19 1994-03-14 Switching device for transmitting communication signals IL108954A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4308783A DE4308783C1 (de) 1993-03-19 1993-03-19 Schaltungsanordnung zur Übertragung nachrichtentechnischer Signale

Publications (2)

Publication Number Publication Date
IL108954A0 IL108954A0 (en) 1994-06-24
IL108954A true IL108954A (en) 1996-10-16

Family

ID=6483214

Family Applications (1)

Application Number Title Priority Date Filing Date
IL10895494A IL108954A (en) 1993-03-19 1994-03-14 Switching device for transmitting communication signals

Country Status (8)

Country Link
US (1) US5497417A (ja)
EP (1) EP0616459B1 (ja)
JP (1) JPH06291602A (ja)
AT (1) ATE165705T1 (ja)
CA (1) CA2119163C (ja)
DE (2) DE4308783C1 (ja)
ES (1) ES2115089T3 (ja)
IL (1) IL108954A (ja)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5848150A (en) * 1997-02-26 1998-12-08 Paradyne Corporation Passive distributed filter system and method
WO2000011860A1 (de) * 1998-08-25 2000-03-02 Infineon Technologies Ag Gebührenimpuls-filterschaltung für analoge modems
DE19959488A1 (de) * 1999-12-10 2001-06-13 Alcatel Sa Schaltungsanordnung zur Begrenzung des Eingangswiderstandes einer a/b-Schnittstelle eines Fernmeldenetzes
US6728367B1 (en) * 2000-03-09 2004-04-27 Adc Telecommunications, Inc. Apparatus and method for filtering voiceband and metering tone frequencies of a mixed voice/data signal
EP1168804B1 (en) * 2000-06-28 2008-07-30 Agere Systems Guardian Corporation Inductive coupling for silicon data access arrangement
WO2003007587A2 (en) * 2001-07-13 2003-01-23 Centillium Communications, Inc. Application of metering tones to a dsl and voice communications system
KR100495217B1 (ko) * 2003-03-21 2005-06-14 삼성전기주식회사 고주파 스위칭 장치 및 이를 이용한 이동통신 단말기

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3617640A (en) * 1968-01-05 1971-11-02 Henry J Cichanowicz Automatic signaling and reporting system
US3609248A (en) * 1969-03-12 1971-09-28 Electrospace Corp Print out control circuit for telephone transaction system
US3643173A (en) * 1970-05-18 1972-02-15 Gen Electric Tuneable microelectronic active band-pass filter
IT986983B (it) * 1973-04-24 1975-01-30 Sits Soc It Telecom Siemens Sistema di trasmissione di impul si di tassazione per sistemi di telecomunicazioni a divisione di tempo
US4115668A (en) * 1977-04-29 1978-09-19 Harvey Hubbell Incorporated Echo suppressor with SF transmission and regeneration
DE3221387A1 (de) * 1982-06-05 1983-12-08 Krone Gmbh, 1000 Berlin Digitales fernsprechendgeraet mit anschluessen fuer analoge zusatzgeraete
JPS59134970A (ja) * 1983-01-24 1984-08-02 Fujitsu Ltd 課金信号受信装置
PT82786B (pt) * 1985-06-21 1992-07-31 Siemens Ag Circuito para a injeccao com pouco ruido de impulsos de uma tensao alternada sinusoidal em especial de impulsos de taxacao de 16 khz
AR241567A1 (es) * 1985-07-24 1992-08-31 Siemens Ag Disposicion de circuito para suprimir señales de perturbacion sobre el ramal receptor de un circuito de conexion de abonado construido.
JPS62220054A (ja) * 1986-03-20 1987-09-28 Fujitsu Ltd 局線トランク回路の課金信号受信装置
JPS6367068A (ja) * 1986-09-08 1988-03-25 Nec Corp 課金パルス送出回路
AR241359A1 (es) * 1986-09-12 1992-05-29 Siemens Ag Disposicion de circuito para alimentar pulsos de cuenteo para el computo de tarifa en aparatos de abonado.
US4879746A (en) * 1987-12-30 1989-11-07 Plantronics, Inc. Voice communication link interface apparatus
ATE141458T1 (de) * 1989-05-31 1996-08-15 Siemens Ag Schnittstelleneinrichtung
US5133007A (en) * 1989-10-26 1992-07-21 Ricoh Company, Ltd. Side tone correction circuit
US5072200A (en) * 1989-11-24 1991-12-10 Bela Ranky Combination of active and passive filters
DE59003361D1 (de) * 1990-03-27 1993-12-09 Siemens Ag Zweidraht-Vierdraht-Umsetzer.
EP0448753B1 (de) * 1990-03-27 1993-11-03 Siemens Aktiengesellschaft Zweidraht-Vierdraht-Umsetzer

Also Published As

Publication number Publication date
CA2119163C (en) 2000-10-31
DE4308783C1 (de) 1994-03-17
CA2119163A1 (en) 1994-09-20
ES2115089T3 (es) 1998-06-16
EP0616459B1 (de) 1998-04-29
IL108954A0 (en) 1994-06-24
ATE165705T1 (de) 1998-05-15
US5497417A (en) 1996-03-05
EP0616459A1 (de) 1994-09-21
JPH06291602A (ja) 1994-10-18
DE59405822D1 (de) 1998-06-04

Similar Documents

Publication Publication Date Title
US5333195A (en) Telephone network speech signal enhancement
AU723043B2 (en) Echo suppressor and non-linear processor of echo canceller
US5841841A (en) Networking computers via shared use of voice telephone lines
US4192978A (en) Operational amplifier hybrid system
US4058678A (en) Remote signalling to a telephone line utilizing power line carrier signals
JPS58143663A (ja) 音声とデ−タの伝送方法および伝送システム
CA1047659A (en) Active hybrid circuit
US5497417A (en) Switching device for transmitting telecommunication signals
EP0174781A2 (en) Bidirectional adaptive voice frequency repeater
CA1040327A (en) Active hybrid sidetone producing circuitry for sidetoneless telephone
JPS6166421A (ja) 双方向適応音声周波数中継器
US3976841A (en) Electronic time switching telephone system
US5341417A (en) Integrated PCM-CODEC circuit with telemetering noise elimination
US4953206A (en) Methods of and apparatus for providing substantially error-free transmitted data
US20010033651A1 (en) Method and apparatus for connecting broadband voice and data signals to telephone systems
EP0142304A1 (en) Echo eliminator
AU730313B2 (en) Hybrid circuit
US20020126747A1 (en) Codec circuit and method for increasing the data transmission rate during a modem transmission
JPS63263992A (ja) プログラマブルハイブリツド回路の加入者線平衡インピーダンスの設定方法および回路装置
JP3036944B2 (ja) 帯域内信号装置
JP3156947B2 (ja) 会議用電話装置
KR20010045746A (ko) 광가입자 전송장치의 종합정보통신망 처리장치에 있어서아날로그 신호 필터링 장치
CA2310958C (en) A method of informing a person of the application of telephone network sound enchancement
Techo et al. The Carrier Telephone Plant
GB2157129A (en) Conference circuit

Legal Events

Date Code Title Description
FF Patent granted
RH Patent void