RO91607B - Convertor de cod pentru modulatie prin impulsuri codificate - Google Patents

Convertor de cod pentru modulatie prin impulsuri codificate

Info

Publication number
RO91607B
RO91607B RO115734A RO11573484A RO91607B RO 91607 B RO91607 B RO 91607B RO 115734 A RO115734 A RO 115734A RO 11573484 A RO11573484 A RO 11573484A RO 91607 B RO91607 B RO 91607B
Authority
RO
Romania
Prior art keywords
law
codified
impulse
modulation
code converter
Prior art date
Application number
RO115734A
Other languages
English (en)
Other versions
RO91607A (ro
Inventor
Herman Dirk
Rabaey Lutgardis
Rene Haspeslagh Didier
Original Assignee
International Standard Electric Corporation
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 International Standard Electric Corporation filed Critical International Standard Electric Corporation
Publication of RO91607A publication Critical patent/RO91607A/ro
Publication of RO91607B publication Critical patent/RO91607B/ro

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
    • H03K17/56—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices
    • H03K17/687—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices the devices being field-effect transistors
    • H03K17/693—Switching arrangements with several input- or output-terminals, e.g. multiplexers, distributors
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
    • H03K17/56—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices
    • H03K17/687—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices the devices being field-effect transistors
    • H03K17/6871—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices the devices being field-effect transistors the output circuit comprising more than one controlled field-effect transistor
    • H03K17/6872—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices the devices being field-effect transistors the output circuit comprising more than one controlled field-effect transistor using complementary field-effect transistors
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K9/00—Demodulating pulses which have been modulated with a continuously-variable signal
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
    • H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
    • H03M7/50—Conversion to or from non-linear codes, e.g. companding
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13034—A/D conversion, code compression/expansion
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13107—Control equipment for a part of the connection, distributed control, co-processing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13216—Code signals, frame structure
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13292—Time division multiplexing, TDM
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13305—Transistors, semiconductors in general
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/1332—Logic circuits
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13396—Signaling in general, in-band signalling

Landscapes

  • Nonlinear Science (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Amplifiers (AREA)
  • Details Of Television Scanning (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
  • Semiconductor Lasers (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Supply And Distribution Of Alternating Current (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Developing Agents For Electrophotography (AREA)
  • Printers Characterized By Their Purpose (AREA)
  • Fats And Perfumes (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Silicon Polymers (AREA)
  • Glass Compositions (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
  • Interface Circuits In Exchanges (AREA)
  • Dc Digital Transmission (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Steroid Compounds (AREA)
  • Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
  • Cereal-Derived Products (AREA)

Abstract

Inventia se refera la un convector de cod destinat realizarii conversiei unui cod PCM liniar într-un cod PCM comprimat, conform legii A sau niu. Fiecare convertor calculeaza o functie corespunzatoare, în care numai un parametru K' depinde de un bit de comanda A a carui valoare indica, respectiv, legea A sau legea niu. De asemenea, inventia mai descrie si o celula de registru de comutare si un dispozitiv multiplicator, folosite în acest convertor.
RO115734A 1983-09-19 1984-09-18 Convertor de cod pentru modulatie prin impulsuri codificate RO91607B (ro)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE2/60209A BE897773A (nl) 1983-09-19 1983-09-19 Pulse code modulatie omzetter

Publications (2)

Publication Number Publication Date
RO91607A RO91607A (ro) 1987-05-15
RO91607B true RO91607B (ro) 1987-05-31

Family

ID=3865654

Family Applications (1)

Application Number Title Priority Date Filing Date
RO115734A RO91607B (ro) 1983-09-19 1984-09-18 Convertor de cod pentru modulatie prin impulsuri codificate

Country Status (23)

Country Link
US (1) US4610018A (ro)
EP (1) EP0145039B1 (ro)
JP (1) JPS60178716A (ro)
KR (1) KR850002716A (ro)
AT (1) ATE51986T1 (ro)
AU (3) AU570501B2 (ro)
BE (1) BE897773A (ro)
BR (1) BR8404596A (ro)
CA (1) CA1249371A (ro)
DD (1) DD229258A5 (ro)
DE (1) DE3481964D1 (ro)
EG (1) EG16761A (ro)
ES (1) ES8701438A1 (ro)
FI (1) FI843642A7 (ro)
HU (1) HU198257B (ro)
MX (1) MX161788A (ro)
NO (1) NO843683L (ro)
PT (1) PT79225B (ro)
RO (1) RO91607B (ro)
SU (1) SU1702879A3 (ro)
TR (1) TR22618A (ro)
YU (1) YU45660B (ro)
ZA (1) ZA847074B (ro)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2178879A (en) * 1985-08-09 1987-02-18 Plessey Co Plc Signal conversion circuits
CA1240063A (en) * 1986-02-25 1988-08-02 Milan Skubnik Digital companding circuit
ES2033814T3 (es) * 1986-11-17 1993-04-01 Alcatel N.V. Cancelador de eco ajustable.
FR2612024A1 (fr) * 1987-02-25 1988-09-09 Mitel Corp Circuit de compression et d'extension de signaux numeriques
EP0455893B1 (en) * 1990-05-11 1995-02-01 Alcatel N.V. Telecommunication line circuit
US5646946A (en) * 1995-10-30 1997-07-08 Motorola, Inc. Apparatus and method for selectively companding data on a slot-by-slot basis
US5883925A (en) * 1995-11-16 1999-03-16 International Business Machines Corporation Pulse code modulation compression mechanism
US5991278A (en) 1996-08-13 1999-11-23 Telogy Networks, Inc. Asymmetric modem communications system and method
US6549569B1 (en) 1999-04-09 2003-04-15 Siemens Information & Communication Networks, Inc. System and method for improving conversion between A-law and U-law coding
KR101418711B1 (ko) * 2012-12-27 2014-08-06 주식회사 선익시스템 기판 얼라인 모듈과 이를 구비한 증착장치
EP3381404B1 (de) 2017-03-31 2020-10-14 Trisa Holding AG Elektrische körperpflegebürste

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2011056B2 (de) * 1970-03-09 1971-12-16 Krone Gmbh, 1000 Berlin Pulscodedemodulator mit dehnercharakteristik aufweisender knickkennlinie
US3778605A (en) * 1971-04-16 1973-12-11 Bell Telephone Labor Inc Digital expandor for pcm code words
US3937897A (en) * 1974-07-25 1976-02-10 North Electric Company Signal coding for telephone communication system
GB1597468A (en) * 1977-06-02 1981-09-09 Post Office Conversion between linear pcm representation and compressed pcm
JPS55117332A (en) * 1979-03-02 1980-09-09 Fujitsu Ltd Code converting system
US4311988A (en) * 1979-04-05 1982-01-19 Motorola Inc. Programmable A-law and μ-law DAC
JPS5627546A (en) * 1979-08-13 1981-03-17 Nec Corp Block compressing coder
DE3104513C2 (de) * 1981-02-09 1983-03-31 Siemens AG, 1000 Berlin und 8000 München Verfahren zur Umwandlung linear codierter PCM-Worte in nichtlinear codierte PCM-Worte und umgekehrt nichtlinear codierter PCM-Worte in linear codierte PCM-Worte gemäß einer dem A-Gesetz gehorchenden 13-Segment-Kennlinie
US4370632A (en) * 1981-05-08 1983-01-25 Motorola, Inc. Multiple function operational amplifier circuit

Also Published As

Publication number Publication date
HU198257B (en) 1989-08-28
CA1249371A (en) 1989-01-24
ATE51986T1 (de) 1990-04-15
EP0145039A3 (en) 1986-12-30
HUT38770A (en) 1986-06-30
JPS60178716A (ja) 1985-09-12
AU570501B2 (en) 1988-03-17
FI843642A0 (fi) 1984-09-18
NO843683L (no) 1985-03-20
AU8263487A (en) 1988-04-14
MX161788A (es) 1990-12-27
AU592028B2 (en) 1989-12-21
US4610018A (en) 1986-09-02
YU45660B (sh) 1992-07-20
ZA847074B (en) 1985-04-24
RO91607A (ro) 1987-05-15
YU160484A (en) 1987-10-31
BR8404596A (pt) 1985-08-06
PT79225A (en) 1984-10-01
AU3299984A (en) 1985-03-28
ES8701438A1 (es) 1986-10-16
FI843642L (fi) 1985-03-20
EP0145039B1 (en) 1990-04-11
KR850002716A (ko) 1985-05-15
PT79225B (en) 1986-08-22
ES536073A0 (es) 1986-10-16
TR22618A (tr) 1988-01-11
BE897773A (nl) 1984-03-19
EG16761A (en) 1989-06-30
DE3481964D1 (de) 1990-05-17
SU1702879A3 (ru) 1991-12-30
DD229258A5 (de) 1985-10-30
EP0145039A2 (en) 1985-06-19
AU8263387A (en) 1988-04-14
FI843642A7 (fi) 1985-03-20
AU590138B2 (en) 1989-10-26

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