[go: up one dir, main page]

NL269708A - Spraakoverdrachtstelsel - Google Patents

Spraakoverdrachtstelsel

Info

Publication number
NL269708A
NL269708A NL269708DA NL269708A NL 269708 A NL269708 A NL 269708A NL 269708D A NL269708D A NL 269708DA NL 269708 A NL269708 A NL 269708A
Authority
NL
Netherlands
Prior art keywords
pulse
pitch
gate
counter
frame
Prior art date
Application number
Other languages
English (en)
Dutch (nl)
Original Assignee
Western Electric Co
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 Western Electric Co filed Critical Western Electric Co
Publication of NL269708A publication Critical patent/NL269708A/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
    • 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
    • G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
    • G10L25/90—Pitch determination of speech signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Human Computer Interaction (AREA)
  • Computational Linguistics (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Analogue/Digital Conversion (AREA)
  • Time-Division Multiplex Systems (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
NL269708D 1960-10-06 1961-09-28 Spraakoverdrachtstelsel NL269708A (nl)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US61011A US3109142A (en) 1960-10-06 1960-10-06 Apparatus for encoding pitch information in a vocoder system

Publications (1)

Publication Number Publication Date
NL269708A true NL269708A (nl) 1964-06-25

Family

ID=22033081

Family Applications (1)

Application Number Title Priority Date Filing Date
NL269708D NL269708A (nl) 1960-10-06 1961-09-28 Spraakoverdrachtstelsel

Country Status (6)

Country Link
US (1) US3109142A (xx)
BE (1) BE608863A (xx)
DE (1) DE1146924B (xx)
FR (1) FR1301696A (xx)
GB (1) GB996285A (xx)
NL (1) NL269708A (xx)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE650607A (xx) * 1963-07-29 1965-01-18
FR1415553A (fr) * 1964-05-26 1965-10-29 Ibm France Perfectionnements aux systèmes d'analyse de la voix
US3420955A (en) * 1965-11-19 1969-01-07 Bell Telephone Labor Inc Automatic peak selector
US3471648A (en) * 1966-07-28 1969-10-07 Bell Telephone Labor Inc Vocoder utilizing companding to reduce background noise caused by quantizing errors
FR1602217A (xx) * 1968-12-16 1970-10-26
FR2206889A5 (xx) * 1972-11-16 1974-06-07 Rhone Poulenc Sa

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2850574A (en) * 1955-11-02 1958-09-02 Bell Telephone Labor Inc Apparatus for compression of television bandwidth
US2949505A (en) * 1957-08-14 1960-08-16 Bell Telephone Labor Inc Reduced bandwith transmission system
NL239229A (xx) * 1958-05-21

Also Published As

Publication number Publication date
DE1146924B (de) 1963-04-11
FR1301696A (fr) 1962-08-17
GB996285A (en) 1965-06-23
BE608863A (fr) 1962-02-01
US3109142A (en) 1963-10-29

Similar Documents

Publication Publication Date Title
GB1487291A (en) Determining the boundaries of a speech utterance
NL269708A (nl) Spraakoverdrachtstelsel
US4075569A (en) Digital method and apparatus for dynamically generating an output pulse train having a desired duty cycle from an input pulse train
ES425145A1 (es) Un metodo para convertir una senal de datos en codigo bina-rio en otra senal en codigo de dos impulsos con la misma po-laridad y otros dos con polaridad opuesta por cada bit.
US3832493A (en) Digital speech detector
GB1345405A (en) Signal converter apparatus
SE7610782L (sv) Teckenkompression och expansion i pcm-system
GB1520887A (en) Signal translation apparatus
FR2342585A1 (fr) Circuit mos a multiphase destine a modifier la duree d'impulsions
CH549849A (de) Verfahren zum ermitteln des der periode der anregungsfrequenz der stimmbaender entsprechenden intervalls.
GB1527889A (en) Band compressor device
GB1499635A (en) Peak level detector circuit
JPS5454506A (en) Coding method
GB1285937A (en) Feedback coders
GB1164414A (en) A Tone-Free Multiplexing System Using a Delta Modulator
JPS56136026A (en) Glitch preventing circuit of digital-to-analog converter
JPS5643849A (en) Check code transmission system of data transmission using push-button dial signal
ATE18486T1 (de) Differenz-pulscode-modulationsuebertragungssyste .
FR2367382A1 (fr) Convertisseur anlogique-numerique comportant un codeur amplitude-duree et un codeur a pesee
SU497737A1 (ru) Кодово-импульсный модул тор телефонного канала радиорелейной станции с временным уплотнением
JPS5338912A (en) Sending/stop system for signal sound
GB771908A (en) Improvements in or relating to signal transmission systems
SU473313A1 (ru) Цифровой компандер
GB991994A (en) A method and apparatus for transmitting a speech signal
FR2272549A1 (en) Frequency coded signal receiving and decoding device - has channels with fixed frequency and converting circuits