IT979348B - Sistema per trasferire segnali acustici ad ampia banda - Google Patents

Sistema per trasferire segnali acustici ad ampia banda

Info

Publication number
IT979348B
IT979348B IT20680/73A IT2068073A IT979348B IT 979348 B IT979348 B IT 979348B IT 20680/73 A IT20680/73 A IT 20680/73A IT 2068073 A IT2068073 A IT 2068073A IT 979348 B IT979348 B IT 979348B
Authority
IT
Italy
Prior art keywords
wide band
acoustic signals
band acoustic
transferring wide
transferring
Prior art date
Application number
IT20680/73A
Other languages
English (en)
Italian (it)
Original Assignee
Int Standard Electric Corp
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 claimed from DE2208805A external-priority patent/DE2208805A1/de
Priority claimed from DE19722218154 external-priority patent/DE2218154A1/de
Priority claimed from DE19722250094 external-priority patent/DE2250094A1/de
Application filed by Int Standard Electric Corp filed Critical Int Standard Electric Corp
Application granted granted Critical
Publication of IT979348B publication Critical patent/IT979348B/it

Links

Classifications

    • 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
    • G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
    • G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
    • G10L21/038—Speech enhancement, e.g. noise reduction or echo cancellation using band spreading techniques
    • 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)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Computational Linguistics (AREA)
  • Quality & Reliability (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
IT20680/73A 1972-02-24 1973-02-22 Sistema per trasferire segnali acustici ad ampia banda IT979348B (it)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE2208805A DE2208805A1 (de) 1972-02-24 1972-02-24 Verfahren zur uebertragung von breitbandigen tonsignalen
DE19722218154 DE2218154A1 (de) 1972-04-14 1972-04-14 Verfahren zur uebertragung von breitbandigen tonsignalen
DE19722250094 DE2250094A1 (de) 1972-10-12 1972-10-12 Uebertragungssystem fuer die uebertragung breitbandiger tonsignale

Publications (1)

Publication Number Publication Date
IT979348B true IT979348B (it) 1974-09-30

Family

ID=27184138

Family Applications (1)

Application Number Title Priority Date Filing Date
IT20680/73A IT979348B (it) 1972-02-24 1973-02-22 Sistema per trasferire segnali acustici ad ampia banda

Country Status (8)

Country Link
US (1) US3875341A (hu)
JP (1) JPS48100004A (hu)
AU (1) AU5258573A (hu)
DD (1) DD105697A5 (hu)
FR (1) FR2173328B1 (hu)
HU (1) HU166106B (hu)
IT (1) IT979348B (hu)
NL (1) NL7302657A (hu)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4051331A (en) * 1976-03-29 1977-09-27 Brigham Young University Speech coding hearing aid system utilizing formant frequency transformation
US4170719A (en) * 1978-06-14 1979-10-09 Bell Telephone Laboratories, Incorporated Speech transmission system
US4433604A (en) * 1981-09-22 1984-02-28 Texas Instruments Incorporated Frequency domain digital encoding technique for musical signals
DE3235804A1 (de) * 1982-09-28 1984-03-29 Robert Bosch Gmbh, 7000 Stuttgart Verfahren und schaltungsanordnung zur bandbreitenreduzierten sprachuebertragung
US4891840A (en) * 1986-03-10 1990-01-02 American Telephone And Telegraph Company, At&T Bell Laboratories Multi-channel signal transmission
DE3703143A1 (de) * 1987-02-03 1988-08-11 Thomson Brandt Gmbh Verfahren zur uebertragung eines audiosignals
US4979188A (en) * 1988-04-29 1990-12-18 Motorola, Inc. Spectrally efficient method for communicating an information signal
US5559900A (en) * 1991-03-12 1996-09-24 Lucent Technologies Inc. Compression of signals for perceptual quality by selecting frequency bands having relatively high energy
FR2741744B1 (fr) * 1995-11-23 1998-01-02 Thomson Csf Procede et dispositif d'evaluation de l'energie du signal de parole par sous bande pour vocodeur bas debits
CA2184541A1 (en) * 1996-08-30 1998-03-01 Tet Hin Yeap Method and apparatus for wavelet modulation of signals for transmission and/or storage
US7823513B2 (en) * 2003-07-08 2010-11-02 National Steel Car Limited Rail road car truck
US20140035747A1 (en) * 2012-08-02 2014-02-06 Sennco Solutions Inc. Dongle, system, and/or method for securing an electronic device
TWI457024B (zh) * 2012-09-04 2014-10-11 Realtek Semiconductor Corp 頻寬選擇方法
US10219090B2 (en) * 2013-02-27 2019-02-26 Analog Devices Global Method and detector of loudspeaker diaphragm excursion
US9980068B2 (en) 2013-11-06 2018-05-22 Analog Devices Global Method of estimating diaphragm excursion of a loudspeaker
US9813812B2 (en) 2014-12-12 2017-11-07 Analog Devices Global Method of controlling diaphragm excursion of electrodynamic loudspeakers

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE594976C (de) * 1932-02-27 1934-03-27 Karl Otto Schmidt Verfahren zur besseren Ausnutzung des UEbertragungsweges
US2840639A (en) * 1952-12-31 1958-06-24 Itt Method and apparatus for signal presentation
US2817711A (en) * 1954-05-10 1957-12-24 Bell Telephone Labor Inc Band compression system
US2957948A (en) * 1956-07-20 1960-10-25 Bell Telephone Labor Inc Frequency band compression
NL245178A (hu) * 1958-11-17
US3246084A (en) * 1960-08-26 1966-04-12 Bolt Beranek & Newman Method of and apparatus for speech compression and the like
DE1122581B (de) * 1960-11-30 1962-01-25 Telefunken Patent Verfahren und Schaltungsanordnung zur angenaeherten Nachbildung der Kurzzeitspektren von nach dem Vocoderverfahren uebertragenen Sprachsignalen
NL272809A (hu) * 1960-12-27
DE1216373B (de) * 1964-04-06 1966-05-12 Ibm Deutschland Verfahren und Anordnung zur Dynamikregelung in Vocodersystemen
US3349184A (en) * 1965-05-17 1967-10-24 Harvey L Morgan Bandwidth compression and expansion by frequency division and multiplication
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
US3674939A (en) * 1969-11-26 1972-07-04 Fred A Brooks Baseband pulse code modulation system
US3696298A (en) * 1970-07-27 1972-10-03 Kahn Res Lab Audio signal transmission system and method

Also Published As

Publication number Publication date
DD105697A5 (hu) 1974-05-05
AU5258573A (en) 1974-08-29
FR2173328B1 (hu) 1976-11-05
JPS48100004A (hu) 1973-12-18
HU166106B (hu) 1975-01-28
US3875341A (en) 1975-04-01
NL7302657A (hu) 1973-08-28
FR2173328A1 (hu) 1973-10-05

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