GB652212A - Volume control for pulse code modulation communication systems - Google Patents

Volume control for pulse code modulation communication systems

Info

Publication number
GB652212A
GB652212A GB11463/49A GB1146349A GB652212A GB 652212 A GB652212 A GB 652212A GB 11463/49 A GB11463/49 A GB 11463/49A GB 1146349 A GB1146349 A GB 1146349A GB 652212 A GB652212 A GB 652212A
Authority
GB
United Kingdom
Prior art keywords
pulses
circuit
code
pulse
signal
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
GB11463/49A
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.)
STC PLC
Original Assignee
Standard Telephone and Cables PLC
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 Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Publication of GB652212A publication Critical patent/GB652212A/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
    • H04B14/048—Non linear compression or expansion

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Amplifiers (AREA)
  • Radar Systems Or Details Thereof (AREA)
GB11463/49A 1948-06-19 1949-04-29 Volume control for pulse code modulation communication systems Expired GB652212A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US34097A US2643293A (en) 1948-06-19 1948-06-19 Volume control for pulse code modulation

Publications (1)

Publication Number Publication Date
GB652212A true GB652212A (en) 1951-04-18

Family

ID=21874289

Family Applications (1)

Application Number Title Priority Date Filing Date
GB11463/49A Expired GB652212A (en) 1948-06-19 1949-04-29 Volume control for pulse code modulation communication systems

Country Status (7)

Country Link
US (1) US2643293A (OSRAM)
BE (1) BE489676A (OSRAM)
CH (1) CH316571A (OSRAM)
DE (1) DE976993C (OSRAM)
FR (1) FR988764A (OSRAM)
GB (1) GB652212A (OSRAM)
NL (1) NL81634C (OSRAM)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3051791A (en) * 1957-02-28 1962-08-28 Epsco Inc Multiplexing means

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB110494A (en) * 1917-04-11 1917-10-25 Robert Edwin Reardon Improvements in Target Practice Apparatus for use with Small Arms.
US2325854A (en) * 1942-01-31 1943-08-03 Hayes John Edmund Low reactance switching device
US2429401A (en) * 1943-06-18 1947-10-21 Arthur C Davis Coaxial cable device
US2432476A (en) * 1944-11-30 1947-12-09 Sperry Gyroscope Co Inc Electrical switch device

Also Published As

Publication number Publication date
CH316571A (fr) 1956-10-15
FR988764A (fr) 1951-08-31
DE976993C (de) 1964-10-29
US2643293A (en) 1953-06-23
BE489676A (OSRAM)
NL81634C (OSRAM)

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