NL7605703A - Digitale verzwakker. - Google Patents

Digitale verzwakker.

Info

Publication number
NL7605703A
NL7605703A NL7605703A NL7605703A NL7605703A NL 7605703 A NL7605703 A NL 7605703A NL 7605703 A NL7605703 A NL 7605703A NL 7605703 A NL7605703 A NL 7605703A NL 7605703 A NL7605703 A NL 7605703A
Authority
NL
Netherlands
Prior art keywords
digital attenuator
attenuator
digital
Prior art date
Application number
NL7605703A
Other languages
English (en)
Original Assignee
Post Office
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 Post Office filed Critical Post Office
Publication of NL7605703A publication Critical patent/NL7605703A/nl

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/02—Digital function generators
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F5/00—Methods or arrangements for data conversion without changing the order or content of the data handled
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H17/00—Networks using digital techniques
    • H03H17/0054—Attenuators
    • 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
    • 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
    • H04B14/046—Systems or methods for reducing noise or bandwidth
    • H04B14/048—Non linear compression or expansion

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Analogue/Digital Conversion (AREA)
  • Dc Digital Transmission (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
NL7605703A 1975-05-29 1976-05-26 Digitale verzwakker. NL7605703A (nl)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB23457/75A GB1528954A (en) 1975-05-29 1975-05-29 Digital attenuator

Publications (1)

Publication Number Publication Date
NL7605703A true NL7605703A (nl) 1976-12-01

Family

ID=10195942

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7605703A NL7605703A (nl) 1975-05-29 1976-05-26 Digitale verzwakker.

Country Status (5)

Country Link
DE (1) DE2624257A1 (nl)
FR (1) FR2312883A1 (nl)
GB (1) GB1528954A (nl)
NL (1) NL7605703A (nl)
SE (1) SE7606014L (nl)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4454498A (en) * 1979-05-21 1984-06-12 Siemens Aktiengesellschaft Adjustable attenuation member for a digital telecommunications system
DE3232548A1 (de) * 1982-09-01 1984-03-01 Siemens AG, 1000 Berlin und 8000 München Verfahren und schaltungsanordnung zur umcodierung von codewoertern
DE602005018274D1 (de) * 2005-09-01 2010-01-21 Ericsson Telefon Ab L M Verarbeitung von codierten echtzeitdaten

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3688097A (en) * 1970-05-20 1972-08-29 Bell Telephone Labor Inc Digital attenuator for non-linear pulse code modulation signals
US3781821A (en) * 1972-06-02 1973-12-25 Ibm Selective shift register

Also Published As

Publication number Publication date
FR2312883A1 (fr) 1976-12-24
SE7606014L (sv) 1976-11-30
GB1528954A (en) 1978-10-18
DE2624257A1 (de) 1976-12-09

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Legal Events

Date Code Title Description
BV The patent application has lapsed