FR1391161A - Transmission of digital values in digital code - Google Patents

Transmission of digital values in digital code

Info

Publication number
FR1391161A
FR1391161A FR961565A FR961565A FR1391161A FR 1391161 A FR1391161 A FR 1391161A FR 961565 A FR961565 A FR 961565A FR 961565 A FR961565 A FR 961565A FR 1391161 A FR1391161 A FR 1391161A
Authority
FR
France
Prior art keywords
digital
transmission
values
code
digital code
Prior art date
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
FR961565A
Other languages
French (fr)
Inventor
Alec Harley Reeves
Donald Robert Barber
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.)
International Standard Electric Corp
Original Assignee
International Standard Electric Corp
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
Priority claimed from GB3250/63A external-priority patent/GB1039341A/en
Priority claimed from GB15070/63A external-priority patent/GB1039342A/en
Application filed by International Standard Electric Corp filed Critical International Standard Electric Corp
Application granted granted Critical
Publication of FR1391161A publication Critical patent/FR1391161A/en
Expired 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
    • H04B14/046—Systems or methods for reducing noise or bandwidth
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Theoretical Computer Science (AREA)
FR961565A 1963-01-25 1964-01-25 Transmission of digital values in digital code Expired FR1391161A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB3250/63A GB1039341A (en) 1963-01-25 1963-01-25 Improvements in or relating to coding equipment
GB15070/63A GB1039342A (en) 1963-04-17 1963-04-17 Improvements in or relating to decoding equipment

Publications (1)

Publication Number Publication Date
FR1391161A true FR1391161A (en) 1965-03-05

Family

ID=32232339

Family Applications (1)

Application Number Title Priority Date Filing Date
FR961565A Expired FR1391161A (en) 1963-01-25 1964-01-25 Transmission of digital values in digital code

Country Status (1)

Country Link
FR (1) FR1391161A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2404349A1 (en) * 1977-09-23 1979-04-20 Telefonbau & Normalzeit Gmbh PCM transmission system for telephone or switching network - uses words comprising sign bit and voltage level information bits

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2404349A1 (en) * 1977-09-23 1979-04-20 Telefonbau & Normalzeit Gmbh PCM transmission system for telephone or switching network - uses words comprising sign bit and voltage level information bits

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