FR2056081A5 - - Google Patents

Info

Publication number
FR2056081A5
FR2056081A5 FR6929592A FR6929592A FR2056081A5 FR 2056081 A5 FR2056081 A5 FR 2056081A5 FR 6929592 A FR6929592 A FR 6929592A FR 6929592 A FR6929592 A FR 6929592A FR 2056081 A5 FR2056081 A5 FR 2056081A5
Authority
FR
France
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
FR6929592A
Other languages
French (fr)
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.)
Thales SA
Original Assignee
Thomson CSF SA
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 to BE754708D priority Critical patent/BE754708A/en
Application filed by Thomson CSF SA filed Critical Thomson CSF SA
Priority to FR6929592A priority patent/FR2056081A5/fr
Priority to CH1225370A priority patent/CH526887A/en
Priority to NL7012511A priority patent/NL7012511A/xx
Priority to DE19702042470 priority patent/DE2042470A1/en
Priority to GB4164570A priority patent/GB1287171A/en
Application granted granted Critical
Publication of FR2056081A5 publication Critical patent/FR2056081A5/fr
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
    • 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
FR6929592A 1969-08-29 1969-08-29 Expired FR2056081A5 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
BE754708D BE754708A (en) 1969-08-29 IMPROVEMENTS TO DIGITALIZED TELEPHONE-TYPE SIGNAL TRANSMISSION DEVICES
FR6929592A FR2056081A5 (en) 1969-08-29 1969-08-29
CH1225370A CH526887A (en) 1969-08-29 1970-08-14 Device for transmitting phonic signals by telephone or radio
NL7012511A NL7012511A (en) 1969-08-29 1970-08-24
DE19702042470 DE2042470A1 (en) 1969-08-29 1970-08-27 Arrangement for the transmission of Signa len in the manner of telephone signals
GB4164570A GB1287171A (en) 1969-08-29 1970-08-28 Improvements in digital transmission of telephony signals

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR6929592A FR2056081A5 (en) 1969-08-29 1969-08-29

Publications (1)

Publication Number Publication Date
FR2056081A5 true FR2056081A5 (en) 1971-05-14

Family

ID=9039537

Family Applications (1)

Application Number Title Priority Date Filing Date
FR6929592A Expired FR2056081A5 (en) 1969-08-29 1969-08-29

Country Status (6)

Country Link
BE (1) BE754708A (en)
CH (1) CH526887A (en)
DE (1) DE2042470A1 (en)
FR (1) FR2056081A5 (en)
GB (1) GB1287171A (en)
NL (1) NL7012511A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL190093C (en) * 1979-12-17 1993-10-18 Victor Company Of Japan COMPRESSING AND EXPANDING SYSTEM.
GB2160394B (en) * 1984-05-02 1988-03-16 Pioneer Electronic Corp Noise reduction system

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2621251A (en) * 1948-06-19 1952-12-09 Int Standard Electric Corp High-frequency preemphasis for pulse code modulation
US3026375A (en) * 1958-05-09 1962-03-20 Bell Telephone Labor Inc Transmission of quantized signals
US3187323A (en) * 1961-10-24 1965-06-01 North American Aviation Inc Automatic scaler for analog-to-digital converter
FR89055E (en) * 1963-01-25 1967-05-05 Int Standard Electric Corp Transmission of digital values in digital code

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2621251A (en) * 1948-06-19 1952-12-09 Int Standard Electric Corp High-frequency preemphasis for pulse code modulation
US3026375A (en) * 1958-05-09 1962-03-20 Bell Telephone Labor Inc Transmission of quantized signals
US3187323A (en) * 1961-10-24 1965-06-01 North American Aviation Inc Automatic scaler for analog-to-digital converter
FR89055E (en) * 1963-01-25 1967-05-05 Int Standard Electric Corp Transmission of digital values in digital code

Also Published As

Publication number Publication date
GB1287171A (en) 1972-08-31
BE754708A (en) 1971-01-18
CH526887A (en) 1972-08-15
DE2042470A1 (en) 1971-03-18
NL7012511A (en) 1971-03-02

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Legal Events

Date Code Title Description
CL Concession to grant licences
ST Notification of lapse