FR913084A - Procédé et dispositif pour le découpage de fréquences dans la transmission de la voix - Google Patents

Procédé et dispositif pour le découpage de fréquences dans la transmission de la voix

Info

Publication number
FR913084A
FR913084A FR913084DA FR913084A FR 913084 A FR913084 A FR 913084A FR 913084D A FR913084D A FR 913084DA FR 913084 A FR913084 A FR 913084A
Authority
FR
France
Prior art keywords
signal
frequency
original
amplitude
transmission
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
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.)
Patelhold Patenverwertungs and Elektro-Holding AG
Original Assignee
Patelhold Patenverwertungs and Elektro-Holding AG
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 Patelhold Patenverwertungs and Elektro-Holding AG filed Critical Patelhold Patenverwertungs and Elektro-Holding AG
Application granted granted Critical
Publication of FR913084A publication Critical patent/FR913084A/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
    • H04K1/00—Secret communication
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
    • G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
    • G10L19/02—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using spectral analysis, e.g. transform vocoders or subband vocoders

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Computational Linguistics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Transmitters (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
FR913084D 1944-06-01 1945-08-03 Procédé et dispositif pour le découpage de fréquences dans la transmission de la voix Expired FR913084A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH913084X 1944-06-01

Publications (1)

Publication Number Publication Date
FR913084A true FR913084A (fr) 1946-08-28

Family

ID=4547565

Family Applications (1)

Application Number Title Priority Date Filing Date
FR913084D Expired FR913084A (fr) 1944-06-01 1945-08-03 Procédé et dispositif pour le découpage de fréquences dans la transmission de la voix

Country Status (5)

Country Link
US (1) US2439293A (fr)
CH (1) CH244727A (fr)
DE (1) DE964876C (fr)
FR (1) FR913084A (fr)
GB (1) GB597340A (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7503176A (nl) * 1975-03-18 1976-09-21 Philips Nv Overdrachtsstelsel voor gesprekssignalen.

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1821004A (en) * 1929-07-02 1931-09-01 American Telephone & Telegraph Compression of frequency range
DE594976C (de) * 1932-02-27 1934-03-27 Karl Otto Schmidt Verfahren zur besseren Ausnutzung des UEbertragungsweges
DE722607C (de) * 1939-01-14 1942-07-22 Karl Otto Schmidt Dr Verfahren zur besseren Ausnutzung des UEbertragungsweges
US2151091A (en) * 1935-10-30 1939-03-21 Bell Telephone Labor Inc Signal transmission

Also Published As

Publication number Publication date
GB597340A (en) 1948-01-23
US2439293A (en) 1948-04-06
DE964876C (de) 1957-05-29
CH244727A (de) 1946-09-30

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