GB662611A - Improvements in or relating to pulse-code modulation communication systems - Google Patents

Improvements in or relating to pulse-code modulation communication systems

Info

Publication number
GB662611A
GB662611A GB25170/49A GB2517049A GB662611A GB 662611 A GB662611 A GB 662611A GB 25170/49 A GB25170/49 A GB 25170/49A GB 2517049 A GB2517049 A GB 2517049A GB 662611 A GB662611 A GB 662611A
Authority
GB
United Kingdom
Prior art keywords
pulses
fed
signal
pulse
circuit
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
GB25170/49A
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.)
Koninklijke Philips NV
Original Assignee
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 Philips Gloeilampenfabrieken NV, Philips Electronics NV filed Critical Philips Gloeilampenfabrieken NV
Publication of GB662611A publication Critical patent/GB662611A/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
    • 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
    • H04B14/06—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation using differential modulation, e.g. delta modulation
    • H04B14/066—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation using differential modulation, e.g. delta modulation using differential modulation with several bits [NDPCM]
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/06—Continuously compensating for, or preventing, undesired influence of physical parameters
    • H03M1/08—Continuously compensating for, or preventing, undesired influence of physical parameters of noise

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
GB25170/49A 1948-10-04 1949-09-30 Improvements in or relating to pulse-code modulation communication systems Expired GB662611A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL277843X 1948-10-04

Publications (1)

Publication Number Publication Date
GB662611A true GB662611A (en) 1951-12-05

Family

ID=19782187

Family Applications (1)

Application Number Title Priority Date Filing Date
GB25170/49A Expired GB662611A (en) 1948-10-04 1949-09-30 Improvements in or relating to pulse-code modulation communication systems

Country Status (6)

Country Link
US (1) US2662113A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
BE (1) BE491489A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
CH (1) CH277843A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (1) DE926917C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
GB (1) GB662611A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
NL (1) NL91939C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE964613C (de) * 1952-08-07 1957-05-23 Int Standard Electric Corp Impulsmodulator fuer ein Nachrichtenuebertragungssystem mit Pulsdifferentialmodulation
DE1019703B (de) * 1953-03-05 1957-11-21 Gen Electric Co Ltd Einrichtung zum Vergleichen der Momentanwerte von zwei voneinander unabhaengigen Spannungen
DE1026358B (de) * 1953-04-17 1958-03-20 Siemens Ag Einrichtung zum Codieren der Amplitudenwerte eines elektrischen Signals

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE171634C1 (sv) * 1951-05-10 1960-06-07 Siemens Ag Anrodning foer att medelst ampitudkvantisering uttrycka en elektrisk maetstorhet som en kod
US2722660A (en) * 1952-04-29 1955-11-01 Jr John P Jones Pulse code modulation system
GB730028A (en) * 1952-06-20 1955-05-18 Elliott Brothers London Ltd Improvements in or relating to electronic amplifying circuits
US2769861A (en) * 1953-10-21 1956-11-06 Bell Telephone Labor Inc Reduction of interference in pulse reception
US2868963A (en) * 1954-08-20 1959-01-13 Bell Telephone Labor Inc Pulse probability modulation system
US5249045A (en) * 1954-12-24 1993-09-28 Lemelson Jerome H Apparatus and methods for automated observation of three-dimensional objects
US5119190A (en) * 1963-03-11 1992-06-02 Lemelson Jerome H Controlling systems and methods for scanning and inspecting images
US5283641A (en) * 1954-12-24 1994-02-01 Lemelson Jerome H Apparatus and methods for automated analysis
US2874284A (en) * 1955-04-28 1959-02-17 Robert L Conger Noise discriminator
US2907878A (en) * 1955-12-12 1959-10-06 Research Corp Electronic interpolator
US3064198A (en) * 1956-11-30 1962-11-13 Hunting Survey Corp Ltd Pulse time discriminating system using switched dual anode beam tube
US2882354A (en) * 1957-02-21 1959-04-14 Max J Ruderian Direct coupled amplifier utilizing sampling method
US2990520A (en) * 1959-11-19 1961-06-27 Jr Ernest E Courchene Delta modulation system
US3091664A (en) * 1961-04-24 1963-05-28 Gen Dynamics Corp Delta modulator for a time division multiplex system
NL276489A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1961-07-03
NL109537C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1961-07-20
US3191065A (en) * 1962-10-03 1965-06-22 Hewlett Packard Co Sampling circuit
US5119205A (en) * 1963-03-11 1992-06-02 Lemelson Jerome H Methods and apparatus for scanning and analyzing selected images areas
FR1363295A (fr) * 1963-04-26 1964-06-12 Trt Telecom Radio Electr Perfectionnements à certains systèmes radiotéléphoniques à adresse discrète et à accès au hasard
US3500205A (en) * 1966-06-14 1970-03-10 Gen Electric Co Ltd Communication systems employing code modulation
US3571758A (en) * 1967-05-12 1971-03-23 Westinghouse Electric Corp Method and apparatus for adaptive delta modulation

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2013671A (en) * 1930-11-26 1935-09-10 Printel Comm Systems Inc Electrical system and apparatus for transmitting intelligence
US2114255A (en) * 1934-04-28 1938-04-12 Gen Railway Signal Co Centralizing traffic controlling system for railroads
US2207744A (en) * 1935-12-31 1940-07-16 Teletype Corp Coding mechanism
US2139655A (en) * 1937-01-28 1938-12-13 Harry R Allensworth Selector-translator
US2438908A (en) * 1945-05-10 1948-04-06 Bell Telephone Labor Inc Pulse code modulation communication system
BE473323A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1945-07-09 1900-01-01
BE482963A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1947-09-23 1900-01-01
US2516587A (en) * 1947-12-03 1950-07-25 Bell Telephone Labor Inc Correction of errors in pulse code communication
US2510054A (en) * 1948-01-20 1950-06-06 Int Standard Electric Corp Pulse code communication system
NL81967C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1948-03-16
US2505029A (en) * 1949-02-09 1950-04-25 Bell Telephone Labor Inc Decoder for pulse code modulation

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE964613C (de) * 1952-08-07 1957-05-23 Int Standard Electric Corp Impulsmodulator fuer ein Nachrichtenuebertragungssystem mit Pulsdifferentialmodulation
DE1019703B (de) * 1953-03-05 1957-11-21 Gen Electric Co Ltd Einrichtung zum Vergleichen der Momentanwerte von zwei voneinander unabhaengigen Spannungen
DE1026358B (de) * 1953-04-17 1958-03-20 Siemens Ag Einrichtung zum Codieren der Amplitudenwerte eines elektrischen Signals

Also Published As

Publication number Publication date
NL91939C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
BE491489A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE926917C (de) 1955-04-25
US2662113A (en) 1953-12-08
CH277843A (de) 1951-09-15

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