GB1520264A - Digital signal transmitter - Google Patents

Digital signal transmitter

Info

Publication number
GB1520264A
GB1520264A GB33178/75A GB3317875A GB1520264A GB 1520264 A GB1520264 A GB 1520264A GB 33178/75 A GB33178/75 A GB 33178/75A GB 3317875 A GB3317875 A GB 3317875A GB 1520264 A GB1520264 A GB 1520264A
Authority
GB
United Kingdom
Prior art keywords
speech
frequency
channel
encode
aug
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
GB33178/75A
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.)
Philips Electronics UK Ltd
Original Assignee
Philips Electronic and Associated Industries Ltd
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 Philips Electronic and Associated Industries Ltd filed Critical Philips Electronic and Associated Industries Ltd
Publication of GB1520264A publication Critical patent/GB1520264A/en
Expired legal-status Critical Current

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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
GB33178/75A 1974-08-12 1975-08-08 Digital signal transmitter Expired GB1520264A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7410763A NL7410763A (nl) 1974-08-12 1974-08-12 Digitaal transmissiestelsel voor het met een lage pulsfrequentie(bit-rate)overdragen van gespreks- signalen en een zender voor toepassing in zulk een stelsel.

Publications (1)

Publication Number Publication Date
GB1520264A true GB1520264A (en) 1978-08-02

Family

ID=19821895

Family Applications (1)

Application Number Title Priority Date Filing Date
GB33178/75A Expired GB1520264A (en) 1974-08-12 1975-08-08 Digital signal transmitter

Country Status (11)

Country Link
US (1) US4047108A (enExample)
JP (1) JPS5142408A (enExample)
AU (1) AU8382575A (enExample)
BE (1) BE832320A (enExample)
CA (1) CA1032478A (enExample)
DE (1) DE2534854A1 (enExample)
DK (1) DK361075A (enExample)
FR (1) FR2282192A1 (enExample)
GB (1) GB1520264A (enExample)
NL (1) NL7410763A (enExample)
SE (1) SE402685B (enExample)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4700361A (en) * 1983-10-07 1987-10-13 Dolby Laboratories Licensing Corporation Spectral emphasis and de-emphasis
US4700362A (en) * 1983-10-07 1987-10-13 Dolby Laboratories Licensing Corporation A-D encoder and D-A decoder system

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4384170A (en) * 1977-01-21 1983-05-17 Forrest S. Mozer Method and apparatus for speech synthesizing
US4121051A (en) * 1977-06-29 1978-10-17 International Telephone & Telegraph Corporation Speech synthesizer
FR2464601B1 (fr) * 1979-08-29 1986-10-24 Trt Telecom Radio Electr Systeme de radiodiffusion numerique de plusieurs signaux d'information par un reseau d'emetteurs utilisant sensiblement la meme frequence porteuse
US4545065A (en) * 1982-04-28 1985-10-01 Xsi General Partnership Extrema coding signal processing method and apparatus
US4672670A (en) * 1983-07-26 1987-06-09 Advanced Micro Devices, Inc. Apparatus and methods for coding, decoding, analyzing and synthesizing a signal
DE3400674C1 (de) * 1984-01-11 1985-03-21 Deutsche Thomson-Brandt Gmbh, 7730 Villingen-Schwenningen Schaltung zur Versteilerung der Flanken eines Videosignals
US4700360A (en) * 1984-12-19 1987-10-13 Extrema Systems International Corporation Extrema coding digitizing signal processing method and apparatus
US5136652A (en) * 1985-11-14 1992-08-04 Ncr Corporation Amplitude enhanced sampled clipped speech encoder and decoder
US4907217A (en) * 1988-09-12 1990-03-06 Amaf Industries, Inc. System and method of transmitting a complex waveform over a communication channel utilizing lincompex techniques
US5761633A (en) * 1994-08-30 1998-06-02 Samsung Electronics Co., Ltd. Method of encoding and decoding speech signals
EP1605439B1 (en) * 2004-06-04 2007-06-27 Honda Research Institute Europe GmbH Unified treatment of resolved and unresolved harmonics
EP1605437B1 (en) * 2004-06-04 2007-08-29 Honda Research Institute Europe GmbH Determination of the common origin of two harmonic components
DE602004008592T2 (de) * 2004-06-04 2007-12-27 Honda Research Institute Europe Gmbh Bestimmung einer gemeinsamen Quelle zweier harmonischer Komponenten
EP1686561B1 (en) * 2005-01-28 2012-01-04 Honda Research Institute Europe GmbH Determination of a common fundamental frequency of harmonic signals
US12323160B2 (en) 2021-05-19 2025-06-03 Cirrus Logic Inc. Filters
US12531082B2 (en) * 2021-05-19 2026-01-20 Cirrus Logic Inc. Natural speech detection

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2724740A (en) * 1950-06-29 1955-11-22 Bell Telephone Labor Inc Quantized transmission with variable quanta
US3521044A (en) * 1968-01-31 1970-07-21 Us Navy Time-compression analog correlator (timac)
JPS5114846B1 (enExample) * 1968-08-08 1976-05-12
US3750024A (en) * 1971-06-16 1973-07-31 Itt Corp Nutley Narrow band digital speech communication system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4700361A (en) * 1983-10-07 1987-10-13 Dolby Laboratories Licensing Corporation Spectral emphasis and de-emphasis
US4700362A (en) * 1983-10-07 1987-10-13 Dolby Laboratories Licensing Corporation A-D encoder and D-A decoder system

Also Published As

Publication number Publication date
NL7410763A (nl) 1976-02-16
SE402685B (sv) 1978-07-10
AU8382575A (en) 1977-02-17
CA1032478A (en) 1978-06-06
DK361075A (da) 1976-02-13
SE7508933L (sv) 1976-02-13
FR2282192A1 (fr) 1976-03-12
BE832320A (fr) 1976-02-11
DE2534854A1 (de) 1976-03-04
JPS5142408A (enExample) 1976-04-10
US4047108A (en) 1977-09-06

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee