NL245178A - - Google Patents

Info

Publication number
NL245178A
NL245178A NL245178DA NL245178A NL 245178 A NL245178 A NL 245178A NL 245178D A NL245178D A NL 245178DA NL 245178 A NL245178 A NL 245178A
Authority
NL
Netherlands
Application number
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.)
Publication of NL245178A publication Critical patent/NL245178A/xx

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/66—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for reducing bandwidth of signals; for improving efficiency of transmission
    • H04B1/667—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for reducing bandwidth of signals; for improving efficiency of transmission using a division in frequency subbands

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Amplitude Modulation (AREA)
NL245178D 1958-11-17 NL245178A (enrdf_load_html_response)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US774173A US3030450A (en) 1958-11-17 1958-11-17 Band compression system

Publications (1)

Publication Number Publication Date
NL245178A true NL245178A (enrdf_load_html_response)

Family

ID=25100462

Family Applications (2)

Application Number Title Priority Date Filing Date
NL245178D NL245178A (enrdf_load_html_response) 1958-11-17
NL127390D NL127390C (enrdf_load_html_response) 1958-11-17

Family Applications After (1)

Application Number Title Priority Date Filing Date
NL127390D NL127390C (enrdf_load_html_response) 1958-11-17

Country Status (6)

Country Link
US (1) US3030450A (enrdf_load_html_response)
BE (1) BE584353A (enrdf_load_html_response)
DE (1) DE1114851B (enrdf_load_html_response)
FR (1) FR1239222A (enrdf_load_html_response)
GB (1) GB937404A (enrdf_load_html_response)
NL (2) NL127390C (enrdf_load_html_response)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL272110A (nl) * 1960-12-08 1964-08-25 Jean Albert Dreyfus Drukaandrijving
NL272809A (enrdf_load_html_response) * 1960-12-27
US3167710A (en) * 1961-02-01 1965-01-26 Jersey Prod Res Co System for analysis of electrical signals including parallel filter channels
US3165734A (en) * 1961-11-02 1965-01-12 Grodzinsky Samuel Screw noise simulation technique
US3411089A (en) * 1962-06-28 1968-11-12 Raytheon Co Communication system
US3431356A (en) * 1965-06-04 1969-03-04 Integrated Electronic Corp Apparatus and method for reconstructing speech
US3420955A (en) * 1965-11-19 1969-01-07 Bell Telephone Labor Inc Automatic peak selector
US3431362A (en) * 1966-04-22 1969-03-04 Bell Telephone Labor Inc Voice-excited,bandwidth reduction system employing pitch frequency pulses generated by unencoded baseband signal
US3471644A (en) * 1966-05-02 1969-10-07 Massachusetts Inst Technology Voice vocoding and transmitting system
US3448216A (en) * 1966-08-03 1969-06-03 Bell Telephone Labor Inc Vocoder system
DE1537596B1 (de) * 1967-11-14 1970-09-03 Michel Copel Verfahren und Schaltungsanordnung zum Verbessern der Verstaendlichkeit frequenzverzerrter Sprache
US3541266A (en) * 1968-09-30 1970-11-17 Octronix Inc Bandwidth compressor and expander
US3743787A (en) * 1969-09-02 1973-07-03 H Fujisaki Speech signal transmission systems utilizing a non-linear circuit in the base band channel
US3622714A (en) * 1969-09-02 1971-11-23 Bell Telephone Labor Inc Telephonic transmission using complementary comb filters
IT979348B (it) * 1972-02-24 1974-09-30 Int Standard Electric Corp Sistema per trasferire segnali acustici ad ampia banda
US3914554A (en) * 1973-05-18 1975-10-21 Bell Telephone Labor Inc Communication system employing spectrum folding
US3946162A (en) * 1973-06-04 1976-03-23 International Standard Electric Corporation System for transferring wideband sound signals
FR2238412A5 (enrdf_load_html_response) * 1973-07-20 1975-02-14 Trt Telecom Radio Electr
US3988546A (en) * 1974-09-13 1976-10-26 General Signal Corporation System for audibly recognizing an aurally unclassifiable signal
DE2516743C2 (de) * 1975-04-16 1984-01-19 Standard Elektrik Lorenz Ag, 7000 Stuttgart Empfänger für ein System zur elektrischen Nachrichtenübertragung mit herabgesetzter Bandbreite
GB1559897A (en) * 1977-03-15 1980-01-30 Post Office Multiplexing speech
US4181822A (en) * 1978-03-07 1980-01-01 Bell & Howell Company Bandsplitter systems

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2640880A (en) * 1953-06-02 Speech communication system
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
US2817711A (en) * 1954-05-10 1957-12-24 Bell Telephone Labor Inc Band compression system

Also Published As

Publication number Publication date
US3030450A (en) 1962-04-17
NL127390C (enrdf_load_html_response)
DE1114851B (de) 1961-10-12
GB937404A (en) 1963-09-18
BE584353A (fr) 1960-03-01
FR1239222A (fr) 1960-08-19

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