GB1579571A - Signal processing method and apparatus - Google Patents

Signal processing method and apparatus Download PDF

Info

Publication number
GB1579571A
GB1579571A GB1084877A GB1084877A GB1579571A GB 1579571 A GB1579571 A GB 1579571A GB 1084877 A GB1084877 A GB 1084877A GB 1084877 A GB1084877 A GB 1084877A GB 1579571 A GB1579571 A GB 1579571A
Authority
GB
United Kingdom
Prior art keywords
signal
harmonic
creator
frequencies
pass filter
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
GB1084877A
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.)
ITX Ltd
Original Assignee
ITX 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
Priority claimed from US05/762,403 external-priority patent/US4150253A/en
Application filed by ITX Ltd filed Critical ITX Ltd
Publication of GB1579571A publication Critical patent/GB1579571A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/32—Modifications of amplifiers to reduce non-linear distortion
    • H03F1/3241—Modifications of amplifiers to reduce non-linear distortion using predistortion circuits
    • H03F1/3276—Modifications of amplifiers to reduce non-linear distortion using predistortion circuits using the nonlinearity inherent to components, e.g. a diode
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/32—Modifications of amplifiers to reduce non-linear distortion
    • H03F1/3241—Modifications of amplifiers to reduce non-linear distortion using predistortion circuits
    • H03F1/3264—Modifications of amplifiers to reduce non-linear distortion using predistortion circuits in audio amplifiers
    • H03F1/327—Modifications of amplifiers to reduce non-linear distortion using predistortion circuits in audio amplifiers to emulate discharge tube amplifier characteristics
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S5/00—Pseudo-stereo systems, e.g. in which additional channel signals are derived from monophonic signals by means of phase shifting, time delay or reverberation 

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Power Engineering (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
  • Stereophonic System (AREA)
  • Electrophonic Musical Instruments (AREA)
  • Amplifiers (AREA)
  • Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
GB1084877A 1976-03-15 1977-03-15 Signal processing method and apparatus Expired GB1579571A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US66711576A 1976-03-15 1976-03-15
US05/762,403 US4150253A (en) 1976-03-15 1977-01-26 Signal distortion circuit and method of use

Publications (1)

Publication Number Publication Date
GB1579571A true GB1579571A (en) 1980-11-19

Family

ID=27099613

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1084877A Expired GB1579571A (en) 1976-03-15 1977-03-15 Signal processing method and apparatus

Country Status (6)

Country Link
JP (1) JPS6049918B2 (enrdf_load_stackoverflow)
CA (1) CA1091163A (enrdf_load_stackoverflow)
DE (1) DE2711083A1 (enrdf_load_stackoverflow)
FR (1) FR2357970A1 (enrdf_load_stackoverflow)
GB (1) GB1579571A (enrdf_load_stackoverflow)
NL (1) NL7702723A (enrdf_load_stackoverflow)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2177576A (en) * 1985-06-07 1987-01-21 Dynavector Inc Multi-channel reproducing system
RU2161868C1 (ru) * 2000-05-12 2001-01-10 Федеральное государственное унитарное предприятие Научно-исследовательский институт радио Государственного комитета РФ по связи и информатизации Способ трансляции стереофонического сигнала
WO2002047259A1 (en) * 2000-12-05 2002-06-13 Telefonaktiebolaget Lm Ericsson (Publ) Method and arrangement relating to electronic compensation
EP1225788A3 (de) * 2001-01-17 2008-10-01 Grundig Multimedia B.V. Tonsignalwiedergabegerät mit Einstellung einer individuellen Hörcharakteristik

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56115189U (enrdf_load_stackoverflow) * 1980-02-01 1981-09-04
DE3904425A1 (de) * 1989-02-14 1990-08-16 Ulrich Dipl Ing Behringer Verfahren und vorrichtung zur klangaufbereitung

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3127476A (en) * 1964-03-31 david
US2852604A (en) * 1954-08-05 1958-09-16 Richard H Maccutcheon Sound reproduction apparatus
US2866849A (en) * 1955-04-27 1958-12-30 Leo C Krazinski Apparatus for improving sounds of music and speech
US2953644A (en) * 1956-10-04 1960-09-20 Bell Telephone Labor Inc Wave transmission system
US3219757A (en) * 1962-08-06 1965-11-23 Gen Electric Sound reproduction from monaural information
US3560656A (en) * 1967-05-01 1971-02-02 Dictaphone Corp Binaural phase differential system
US3591699A (en) * 1968-03-28 1971-07-06 Royce L Cutler Music voicing circuit deriving an input from a conventional musical instrument and providing voiced musical tones utilizing the fundamental tones from the conventional musical instrument
US3544694A (en) * 1969-03-17 1970-12-01 William A Freeman Pickup and waveforming circuitry for electronic musical instrument
CA942198A (en) * 1970-09-15 1974-02-19 Kazuho Ohta Multidimensional stereophonic reproducing system
US3723633A (en) * 1971-06-16 1973-03-27 Nippon Musical Instruments Mfg Bass tone producing device for an electronic musical instrument
US3828133A (en) * 1971-09-23 1974-08-06 Kokusai Denshin Denwa Co Ltd Speech quality improving system utilizing the generation of higher harmonic components
US3819861A (en) * 1972-11-24 1974-06-25 Bell Telephone Labor Inc Sound enhancing system for musical instruments
US3890466A (en) * 1973-02-01 1975-06-17 Cbs Inc Encoders for quadraphonic sound system

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2177576A (en) * 1985-06-07 1987-01-21 Dynavector Inc Multi-channel reproducing system
US4873722A (en) * 1985-06-07 1989-10-10 Dynavector, Inc. Multi-channel reproducing system
RU2161868C1 (ru) * 2000-05-12 2001-01-10 Федеральное государственное унитарное предприятие Научно-исследовательский институт радио Государственного комитета РФ по связи и информатизации Способ трансляции стереофонического сигнала
WO2002047259A1 (en) * 2000-12-05 2002-06-13 Telefonaktiebolaget Lm Ericsson (Publ) Method and arrangement relating to electronic compensation
US6982595B2 (en) 2000-12-05 2006-01-03 Telefonaktiebolaget L M Ericsson (Publ) Method and arrangement relating to electronic compensation
EP1225788A3 (de) * 2001-01-17 2008-10-01 Grundig Multimedia B.V. Tonsignalwiedergabegerät mit Einstellung einer individuellen Hörcharakteristik

Also Published As

Publication number Publication date
FR2357970B1 (enrdf_load_stackoverflow) 1983-09-30
NL7702723A (nl) 1977-09-19
DE2711083C2 (enrdf_load_stackoverflow) 1987-08-27
JPS52131701A (en) 1977-11-04
FR2357970A1 (fr) 1978-02-03
CA1091163A (en) 1980-12-09
DE2711083A1 (de) 1977-11-10
JPS6049918B2 (ja) 1985-11-05

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Legal Events

Date Code Title Description
CSNS Application of which complete specification have been accepted and published, but patent is not sealed