IT976174B - Codificatore per sistemi di trasmis sione digitale a codice di impulsi con riduzione di rumore ponderata in frequenza - Google Patents

Codificatore per sistemi di trasmis sione digitale a codice di impulsi con riduzione di rumore ponderata in frequenza

Info

Publication number
IT976174B
IT976174B IT71103/72A IT7110372A IT976174B IT 976174 B IT976174 B IT 976174B IT 71103/72 A IT71103/72 A IT 71103/72A IT 7110372 A IT7110372 A IT 7110372A IT 976174 B IT976174 B IT 976174B
Authority
IT
Italy
Prior art keywords
encoder
frequency
noise reduction
transmission systems
digital transmission
Prior art date
Application number
IT71103/72A
Other languages
English (en)
Italian (it)
Original Assignee
Western Electric Co
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 Western Electric Co filed Critical Western Electric Co
Application granted granted Critical
Publication of IT976174B publication Critical patent/IT976174B/it

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M3/00—Conversion of analogue values to or from differential modulation
    • H03M3/04—Differential modulation with several bits, e.g. differential pulse code modulation [DPCM]
    • H03M3/042—Differential modulation with several bits, e.g. differential pulse code modulation [DPCM] with adaptable step size, e.g. adaptive differential pulse code modulation [ADPCM]

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Analogue/Digital Conversion (AREA)
IT71103/72A 1971-12-30 1972-12-27 Codificatore per sistemi di trasmis sione digitale a codice di impulsi con riduzione di rumore ponderata in frequenza IT976174B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US21405171A 1971-12-30 1971-12-30

Publications (1)

Publication Number Publication Date
IT976174B true IT976174B (it) 1974-08-20

Family

ID=22797582

Family Applications (1)

Application Number Title Priority Date Filing Date
IT71103/72A IT976174B (it) 1971-12-30 1972-12-27 Codificatore per sistemi di trasmis sione digitale a codice di impulsi con riduzione di rumore ponderata in frequenza

Country Status (10)

Country Link
US (1) US3745562A (enrdf_load_stackoverflow)
JP (1) JPS5639577B2 (enrdf_load_stackoverflow)
BE (1) BE793564A (enrdf_load_stackoverflow)
CA (1) CA991311A (enrdf_load_stackoverflow)
DE (1) DE2263757C2 (enrdf_load_stackoverflow)
FR (1) FR2166220A1 (enrdf_load_stackoverflow)
GB (1) GB1370710A (enrdf_load_stackoverflow)
IT (1) IT976174B (enrdf_load_stackoverflow)
NL (1) NL7217828A (enrdf_load_stackoverflow)
SE (1) SE387796B (enrdf_load_stackoverflow)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4123750A (en) * 1973-11-29 1978-10-31 Dynamics Research Corporation Signal processor for position encoder
FR2312884A1 (fr) * 1975-05-27 1976-12-24 Ibm France Procede de quantification par blocs d'echantillons d'un signal electrique, et dispositif de mise en oeuvre dudit procede
US4059800A (en) * 1976-06-30 1977-11-22 International Business Machines Corporation Digital multi-line companded delta modulator
JPS5952576B2 (ja) * 1979-07-13 1984-12-20 株式会社東芝 Ａ／ｄ変換器の安定化回路
FR2463549A1 (fr) * 1979-08-10 1981-02-20 Telecommunications Sa Dispositif de reduction du debit numerique d'informations codees
FR2492612A1 (fr) * 1980-10-16 1982-04-23 Mecilec Sa Procede et dispositif de conversion analogique numerique incrementale
US4700362A (en) * 1983-10-07 1987-10-13 Dolby Laboratories Licensing Corporation A-D encoder and D-A decoder system
US5150120A (en) * 1991-01-03 1992-09-22 Harris Corp. Multiplexed sigma-delta A/D converter
JP3749752B2 (ja) * 1995-03-24 2006-03-01 アイティーティー・マニュファクチャリング・エンタープライジズ・インコーポレーテッド ブロック適応型差分パルスコード変調システム
GB9509831D0 (en) * 1995-05-15 1995-07-05 Gerzon Michael A Lossless coding method for waveform data
GB0113627D0 (en) * 2001-06-05 2001-07-25 Univ Stirling Controller and method of controlling an apparatus
JP6644279B2 (ja) 2015-08-27 2020-02-12 国立大学法人大阪大学 ゆらぎ発振器、信号検知装置、及び表示装置

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2927962A (en) * 1954-04-26 1960-03-08 Bell Telephone Labor Inc Transmission systems employing quantization
US3631520A (en) * 1968-08-19 1971-12-28 Bell Telephone Labor Inc Predictive coding of speech signals
US3628148A (en) * 1969-12-23 1971-12-14 Bell Telephone Labor Inc Adaptive delta modulation system
US3621396A (en) * 1970-05-08 1971-11-16 Bell Telephone Labor Inc Delta modulation information transmission system
US3742138A (en) * 1971-08-30 1973-06-26 Bell Telephone Labor Inc Predictive delayed encoders

Also Published As

Publication number Publication date
DE2263757C2 (de) 1982-11-18
FR2166220A1 (enrdf_load_stackoverflow) 1973-08-10
JPS5639577B2 (enrdf_load_stackoverflow) 1981-09-14
JPS4875161A (enrdf_load_stackoverflow) 1973-10-09
US3745562A (en) 1973-07-10
SE387796B (sv) 1976-09-13
BE793564A (fr) 1973-04-16
CA991311A (en) 1976-06-15
DE2263757A1 (de) 1973-07-05
NL7217828A (enrdf_load_stackoverflow) 1973-07-03
GB1370710A (en) 1974-10-16

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