GB648587A - Improvements in or relating to telephonic pulse-code-modulation systems - Google Patents

Improvements in or relating to telephonic pulse-code-modulation systems

Info

Publication number
GB648587A
GB648587A GB30708/48A GB3070848A GB648587A GB 648587 A GB648587 A GB 648587A GB 30708/48 A GB30708/48 A GB 30708/48A GB 3070848 A GB3070848 A GB 3070848A GB 648587 A GB648587 A GB 648587A
Authority
GB
United Kingdom
Prior art keywords
terminals
code
pulse
diodes
condenser
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
GB30708/48A
Other languages
English (en)
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.)
CHRISTOPHER EDMUND GERVASE BAI
Koninklijke Philips NV
Original Assignee
CHRISTOPHER EDMUND GERVASE BAI
Philips Gloeilampenfabrieken NV
Philips Electronics NV
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 CHRISTOPHER EDMUND GERVASE BAI, Philips Gloeilampenfabrieken NV, Philips Electronics NV filed Critical CHRISTOPHER EDMUND GERVASE BAI
Publication of GB648587A publication Critical patent/GB648587A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/10—Calibration or testing
    • H03M1/1009—Calibration

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Amplitude Modulation (AREA)
  • Dc Digital Transmission (AREA)
  • Electrotherapy Devices (AREA)
GB30708/48A 1948-11-26 1948-11-26 Improvements in or relating to telephonic pulse-code-modulation systems Expired GB648587A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB277505X 1948-11-26

Publications (1)

Publication Number Publication Date
GB648587A true GB648587A (en) 1951-01-10

Family

ID=10264667

Family Applications (1)

Application Number Title Priority Date Filing Date
GB30708/48A Expired GB648587A (en) 1948-11-26 1948-11-26 Improvements in or relating to telephonic pulse-code-modulation systems

Country Status (6)

Country Link
US (1) US2647238A (fr)
BE (1) BE492403A (fr)
CH (1) CH277505A (fr)
DE (1) DE812441C (fr)
FR (1) FR1002679A (fr)
GB (1) GB648587A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE962977C (de) * 1951-05-10 1957-05-02 Siemens Ag Einrichtung zum Codieren elektrischer Signale

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2759998A (en) * 1951-10-26 1956-08-21 Itt Pulse communication system
FR1062271A (fr) * 1952-08-28 1954-04-21 Labo Cent Telecommunicat Circuit de codage
US2883529A (en) * 1954-03-15 1959-04-21 Boeing Co Voltage monitoring circuits
BE544125A (fr) * 1955-01-03
US2965767A (en) * 1955-07-15 1960-12-20 Thompson Ramo Wooldridge Inc Input circuits and matrices employing zener diodes as voltage breakdown gating elements
US3312903A (en) * 1959-03-04 1967-04-04 Itt Jitter compensating circuit for angle encoding apparatus
DE1225235B (de) * 1963-11-07 1966-09-22 Standard Elektrik Lorenz Ag Schaltungsanordnung zur pulsfoermigen Abtastung von Wechselstromsignalen, insbesondere fuer Kanalverteiler fuer die PCM
JPS58165050A (ja) * 1982-03-24 1983-09-30 Murata Mfg Co Ltd 乾燥・結露・着霜識別センサ

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2357652A (en) * 1942-05-25 1944-09-05 Rca Corp Rectifier timing circuit
BE472941A (fr) * 1944-09-16 1900-01-01
US2521733A (en) * 1948-02-03 1950-09-12 Fed Telecomm Lab Inc Pulse code modulator
BE487541A (fr) * 1948-02-26
BE506691A (fr) * 1948-03-06

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE962977C (de) * 1951-05-10 1957-05-02 Siemens Ag Einrichtung zum Codieren elektrischer Signale

Also Published As

Publication number Publication date
CH277505A (de) 1951-08-31
DE812441C (de) 1951-08-30
US2647238A (en) 1953-07-28
FR1002679A (fr) 1952-03-10
BE492403A (fr)

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