FR2508254B1 - - Google Patents

Info

Publication number
FR2508254B1
FR2508254B1 FR8112251A FR8112251A FR2508254B1 FR 2508254 B1 FR2508254 B1 FR 2508254B1 FR 8112251 A FR8112251 A FR 8112251A FR 8112251 A FR8112251 A FR 8112251A FR 2508254 B1 FR2508254 B1 FR 2508254B1
Authority
FR
France
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.)
Expired
Application number
FR8112251A
Other versions
FR2508254A1 (fr
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to FR8112251A priority Critical patent/FR2508254A1/fr
Priority to US06/390,789 priority patent/US4521883A/en
Publication of FR2508254A1 publication Critical patent/FR2508254A1/fr
Application granted granted Critical
Publication of FR2508254B1 publication Critical patent/FR2508254B1/fr
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
    • H04B14/04—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation using pulse code modulation

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
FR8112251A 1981-06-22 1981-06-22 Circuits integres monolithiques " codec + filtres " Granted FR2508254A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR8112251A FR2508254A1 (fr) 1981-06-22 1981-06-22 Circuits integres monolithiques " codec + filtres "
US06/390,789 US4521883A (en) 1981-06-22 1982-06-21 Telephony apparatus having filter capacitor switched to undergo discrete phase jumps

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8112251A FR2508254A1 (fr) 1981-06-22 1981-06-22 Circuits integres monolithiques " codec + filtres "

Publications (2)

Publication Number Publication Date
FR2508254A1 FR2508254A1 (fr) 1982-12-24
FR2508254B1 true FR2508254B1 (fr) 1983-10-07

Family

ID=9259757

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8112251A Granted FR2508254A1 (fr) 1981-06-22 1981-06-22 Circuits integres monolithiques " codec + filtres "

Country Status (2)

Country Link
US (1) US4521883A (fr)
FR (1) FR2508254A1 (fr)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4763318A (en) * 1986-05-02 1988-08-09 Datos Corporation Transmission and reception of synchronous data and timing signals using a steady bit stream
US7173551B2 (en) * 2000-12-21 2007-02-06 Quellan, Inc. Increasing data throughput in optical fiber transmission systems
US7307569B2 (en) 2001-03-29 2007-12-11 Quellan, Inc. Increasing data throughput in optical fiber transmission systems
US7149256B2 (en) 2001-03-29 2006-12-12 Quellan, Inc. Multilevel pulse position modulation for efficient fiber optic communication
WO2002082694A1 (fr) 2001-04-04 2002-10-17 Quellan, Inc. Procede et systeme permettant de decoder des signaux multiniveau
US20030030873A1 (en) * 2001-05-09 2003-02-13 Quellan, Inc. High-speed adjustable multilevel light modulation
AU2003211094A1 (en) 2002-02-15 2003-09-09 Quellan, Inc. Multi-level signal clock recovery technique
US6816101B2 (en) * 2002-03-08 2004-11-09 Quelian, Inc. High-speed analog-to-digital converter using a unique gray code
AU2003223687A1 (en) * 2002-04-23 2003-11-10 Quellan, Inc. Combined ask/dpsk modulation system
JP2004013681A (ja) * 2002-06-10 2004-01-15 Bosu & K Consulting Kk 名刺情報管理システム
US7035361B2 (en) 2002-07-15 2006-04-25 Quellan, Inc. Adaptive noise filtering and equalization for optimal high speed multilevel signal decoding
AU2003287628A1 (en) * 2002-11-12 2004-06-03 Quellan, Inc. High-speed analog-to-digital conversion with improved robustness to timing uncertainty
US7804760B2 (en) 2003-08-07 2010-09-28 Quellan, Inc. Method and system for signal emulation
JP2007502054A (ja) 2003-08-07 2007-02-01 ケラン インコーポレイテッド クロストークキャンセルのための方法とシステム
EP1687929B1 (fr) 2003-11-17 2010-11-10 Quellan, Inc. Procede et systeme d'annulation de brouillage d'antenne
US7616700B2 (en) 2003-12-22 2009-11-10 Quellan, Inc. Method and system for slicing a communication signal
US7725079B2 (en) 2004-12-14 2010-05-25 Quellan, Inc. Method and system for automatic control in an interference cancellation device
US7522883B2 (en) 2004-12-14 2009-04-21 Quellan, Inc. Method and system for reducing signal interference
WO2007127369A2 (fr) 2006-04-26 2007-11-08 Quellan, Inc. Méthode et système de réduction des émissions rayonnées depuis un canal de communication

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1185416A (en) * 1968-09-20 1970-03-25 Standard Telephones Cables Ltd Frame Synchronisation in P.C.M. Systems.
US3732376A (en) * 1972-03-10 1973-05-08 Int Standard Electric Corp Time division multiplex coder
US4124778A (en) * 1977-11-02 1978-11-07 Minnesota Mining And Manufacturing Company Digital frame synchronizing circuit

Also Published As

Publication number Publication date
FR2508254A1 (fr) 1982-12-24
US4521883A (en) 1985-06-04

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Legal Events

Date Code Title Description
TP Transmission of property
ST Notification of lapse