NL192652C - Schakelingsorgaan voor het verminderen van medium-overbelastingseffecten in signaalregistratie- en signaaltransmissiestelsels. - Google Patents

Schakelingsorgaan voor het verminderen van medium-overbelastingseffecten in signaalregistratie- en signaaltransmissiestelsels. Download PDF

Info

Publication number
NL192652C
NL192652C NL8103123A NL8103123A NL192652C NL 192652 C NL192652 C NL 192652C NL 8103123 A NL8103123 A NL 8103123A NL 8103123 A NL8103123 A NL 8103123A NL 192652 C NL192652 C NL 192652C
Authority
NL
Netherlands
Prior art keywords
frequency
saturation
signal
range
recording
Prior art date
Application number
NL8103123A
Other languages
English (en)
Dutch (nl)
Other versions
NL8103123A (nl
NL192652B (nl
Original Assignee
Dolby Ray Milton
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 Dolby Ray Milton filed Critical Dolby Ray Milton
Publication of NL8103123A publication Critical patent/NL8103123A/nl
Publication of NL192652B publication Critical patent/NL192652B/xx
Application granted granted Critical
Publication of NL192652C publication Critical patent/NL192652C/nl

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G7/00—Volume compression or expansion in amplifiers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G9/00—Combinations of two or more types of control, e.g. gain control and tone control
    • H03G9/02—Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers
    • H03G9/12—Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers having semiconductor devices
    • H03G9/18—Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers having semiconductor devices for tone control and volume expansion or compression

Landscapes

  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
  • Signal Processing Not Specific To The Method Of Recording And Reproducing (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
  • Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
NL8103123A 1980-06-30 1981-06-29 Schakelingsorgaan voor het verminderen van medium-overbelastingseffecten in signaalregistratie- en signaaltransmissiestelsels. NL192652C (nl)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US16395080A 1980-06-30 1980-06-30
US16395080 1980-06-30
US18077180A 1980-08-22 1980-08-22
US18077180 1980-08-22

Publications (3)

Publication Number Publication Date
NL8103123A NL8103123A (nl) 1982-01-18
NL192652B NL192652B (nl) 1997-07-01
NL192652C true NL192652C (nl) 1997-11-04

Family

ID=26860115

Family Applications (3)

Application Number Title Priority Date Filing Date
NL8103123A NL192652C (nl) 1980-06-30 1981-06-29 Schakelingsorgaan voor het verminderen van medium-overbelastingseffecten in signaalregistratie- en signaaltransmissiestelsels.
NLAANVRAGE8103124,A NL189988C (nl) 1980-06-30 1981-06-29 Compandor ruisonderdrukkingssysteem en compressor en expander voor een dergelijk systeem.
NLAANVRAGE8103122,A NL190214C (nl) 1980-06-30 1981-06-29 Keteninrichting voor het wijzigen van het dynamische gebied van een invoersignaal.

Family Applications After (2)

Application Number Title Priority Date Filing Date
NLAANVRAGE8103124,A NL189988C (nl) 1980-06-30 1981-06-29 Compandor ruisonderdrukkingssysteem en compressor en expander voor een dergelijk systeem.
NLAANVRAGE8103122,A NL190214C (nl) 1980-06-30 1981-06-29 Keteninrichting voor het wijzigen van het dynamische gebied van een invoersignaal.

Country Status (17)

Country Link
KR (4) KR880000105B1 (de)
AT (3) AT386304B (de)
AU (3) AU544888B2 (de)
BR (3) BR8104156A (de)
CH (3) CH654703A5 (de)
DE (3) DE3125788A1 (de)
DK (3) DK172325B1 (de)
ES (3) ES8204255A1 (de)
FI (3) FI76456C (de)
GB (3) GB2079113B (de)
HK (3) HK28485A (de)
IT (3) IT1137985B (de)
MY (3) MY8501148A (de)
NL (3) NL192652C (de)
NO (3) NO157399C (de)
SE (3) SE447525B (de)
SG (3) SG4385G (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4736433A (en) * 1985-06-17 1988-04-05 Dolby Ray Milton Circuit arrangements for modifying dynamic range using action substitution and superposition techniques
US4815068A (en) * 1987-08-07 1989-03-21 Dolby Ray Milton Audio encoder for use with more than one decoder each having different characteristics
US5793797A (en) * 1995-05-09 1998-08-11 Unisys Corporation Data transmisson system with a low peak-to-average power ratio based on distorting small amplitude signals
US5651028A (en) * 1995-05-09 1997-07-22 Unisys Corporation Data transmission system with a low peak-to-average power ratio based on distorting frequently occuring signals
DE10011193B4 (de) * 2000-03-08 2004-02-05 Sennheiser Electronic Gmbh & Co. Kg Kompandersystem mit einer Kompressorschaltung und einer Expanderschaltung

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US28426A (en) * 1860-05-22 Shortening tires
US2558002A (en) * 1939-10-24 1951-06-26 Int Standard Electric Corp Volume compression system
US3022473A (en) * 1959-08-18 1962-02-20 Bell Telephone Labor Inc Signal recovery circuits
US3903485A (en) * 1968-01-10 1975-09-02 Ray Milton Dolby Compressors, expanders and noise reduction systems
US3846719A (en) * 1973-09-13 1974-11-05 Dolby Laboratories Inc Noise reduction systems
GB1253031A (de) * 1968-01-10 1971-11-10
USRE28426E (en) * 1968-11-01 1975-05-20 Signal compressors and expanders
US3757254A (en) * 1970-06-05 1973-09-04 Victor Co Ltd N system noise reduction system and apparatus using a compression and expansio
GB1390341A (en) * 1971-03-12 1975-04-09 Dolby Laboratories Inc Signal compressors and expanders
FI57502C (fi) * 1971-04-06 1980-08-11 Victor Company Of Japan Kompressions- och expansionssystem
US3875537A (en) * 1972-05-02 1975-04-01 Dolby Laboratories Inc Circuits for modifying the dynamic range of an input signal
GB1432763A (en) * 1972-05-02 1976-04-22 Dolby Laboratories Inc Compressors expanders and noise reduction systems
US3934190A (en) * 1972-09-15 1976-01-20 Dolby Laboratories, Inc. Signal compressors and expanders
US3909733A (en) * 1973-05-17 1975-09-30 Dolby Laboratories Inc Dynamic range modifying circuits utilizing variable negative resistance
US3971405A (en) * 1974-07-15 1976-07-27 Parker-Hannifin Corporation Pressure controlled hydrant valve coupler
US3930208A (en) * 1974-08-29 1975-12-30 Northern Electric Co A-C signal processing circuits for compandors
US3902131A (en) * 1974-09-06 1975-08-26 Quadracast Systems Tandem audio dynamic range expander
JPS51127608A (en) * 1975-04-30 1976-11-06 Victor Co Of Japan Ltd Signal transmitting unit
US4061874A (en) * 1976-06-03 1977-12-06 Fricke J P System for reproducing sound information
DE2803751C2 (de) * 1978-01-28 1982-06-09 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Schaltung zur automatischen Dynamik- Kompression oder -Expansion
JPS5552971A (en) * 1978-10-16 1980-04-17 Mitsubishi Electric Corp Simulator for radar indicator

Also Published As

Publication number Publication date
DK282981A (da) 1981-12-31
DK172325B1 (da) 1998-03-16
SE447525B (sv) 1986-11-17
AU545125B2 (en) 1985-07-04
DE3125788A1 (de) 1982-05-13
FI74368B (fi) 1987-09-30
GB2079114B (en) 1984-10-03
KR830006993A (ko) 1983-10-12
DE3125788C2 (de) 1992-06-11
AT372796B (de) 1983-11-10
NL189988C (nl) 1993-09-16
FI76456C (fi) 1988-10-10
DK282881A (da) 1981-12-31
HK28485A (en) 1985-04-12
MY8501149A (en) 1985-12-31
CH662684A5 (de) 1987-10-15
NO812217L (no) 1982-01-04
NO812218L (no) 1982-01-04
AT386304B (de) 1988-08-10
NL190214B (nl) 1993-07-01
DK156356C (da) 1989-12-27
IT8122651A0 (it) 1981-06-30
AU7239481A (en) 1982-01-07
FI76456B (fi) 1988-06-30
FI812026L (fi) 1981-12-31
ATA291481A (de) 1987-12-15
BR8104156A (pt) 1982-03-16
GB2079114A (en) 1982-01-13
NO157398B (no) 1987-11-30
IT8122650A0 (it) 1981-06-30
FI79428B (fi) 1989-08-31
NL190214C (nl) 1993-12-01
SE8104063L (sv) 1981-12-31
ATA291581A (de) 1983-03-15
ES8300233A1 (es) 1982-10-01
SG4285G (en) 1985-06-14
AU544888B2 (en) 1985-06-20
IT1137987B (it) 1986-09-10
AU7236581A (en) 1982-01-07
ES503493A0 (es) 1982-10-01
GB2079113B (en) 1984-10-03
KR840002491B1 (ko) 1984-12-31
MY8501147A (en) 1985-12-31
NL8103122A (nl) 1982-01-18
DK156356B (da) 1989-08-07
HK28385A (en) 1985-04-12
NO157399C (no) 1988-03-09
FI74368C (fi) 1988-01-11
SG4385G (en) 1985-06-14
DK282581A (da) 1981-12-31
HK28285A (en) 1985-04-12
DE3125789A1 (de) 1982-05-19
DE3125789C2 (de) 1984-01-12
NL8103123A (nl) 1982-01-18
ATA291681A (de) 1988-03-15
NO157400B (no) 1987-11-30
DE3125790A1 (de) 1982-05-13
KR830006992A (ko) 1983-10-12
NO812216L (no) 1982-01-04
GB2079112A (en) 1982-01-13
DK168806B1 (da) 1994-06-13
GB2079112B (en) 1984-10-03
BR8104157A (pt) 1982-03-16
SE8104062L (sv) 1981-12-31
IT1137986B (it) 1986-09-10
CH660653A5 (de) 1987-05-15
NL8103124A (nl) 1982-01-18
NO157400C (no) 1988-03-09
ES503497A0 (es) 1982-11-01
FI79428C (fi) 1989-12-11
CH654703A5 (de) 1986-02-28
AU546641B2 (en) 1985-09-12
GB2079113A (en) 1982-01-13
AU7239381A (en) 1982-01-07
KR840002492B1 (ko) 1984-12-31
NL189988B (nl) 1993-04-16
KR880000105B1 (ko) 1988-02-23
NO157399B (no) 1987-11-30
ES8301084A1 (es) 1982-11-01
FI812024L (fi) 1981-12-31
ES503496A0 (es) 1982-04-16
BR8104158A (pt) 1982-03-16
NO157398C (no) 1988-03-09
SE8104061L (sv) 1981-12-31
ES8204255A1 (es) 1982-04-16
SE450985B (sv) 1987-09-07
DE3125790C2 (de) 1992-11-12
SE447524B (sv) 1986-11-17
IT8122652A0 (it) 1981-06-30
AT386911B (de) 1988-11-10
MY8501148A (en) 1985-12-31
SG4585G (en) 1985-06-14
KR880000106B1 (ko) 1988-02-23
FI812025L (fi) 1981-12-31
NL192652B (nl) 1997-07-01
IT1137985B (it) 1986-09-10

Similar Documents

Publication Publication Date Title
US4490691A (en) Compressor-expander circuits and, circuit arrangements for modifying dynamic range, for suppressing mid-frequency modulation effects and for reducing media overload
US4701722A (en) Circuit arrangements for modifying dynamic range using series and parallel circuit techniques
US5172358A (en) Loudness control circuit for an audio device
US3678416A (en) Dynamic noise filter having means for varying cutoff point
US4322641A (en) Noise reduction system
KR900008595B1 (ko) 적응 신호웨이팅 시스템
JPS6128162B2 (de)
US4263624A (en) Analog recording on magnetic media
NL192652C (nl) Schakelingsorgaan voor het verminderen van medium-overbelastingseffecten in signaalregistratie- en signaaltransmissiestelsels.
US3972010A (en) Compressors, expanders and noise reduction systems
US5838800A (en) Apparatus for enhancing stereo effect with central sound image maintenance circuit
US4271439A (en) Electronic gain and noise control for recording of analog information
JPH0359612B2 (de)
JPH0522416B2 (de)
Dolby A 20 dB audio noise reduction system for consumer applications
NL8105775A (nl) Schakeling voor modificatie van de dynamiek-omgang van audio en andere signalen.
JPH0474886B2 (de)
CA1219809A (en) Audio compressors and expanders
KR840002901Y1 (ko) 잡음 감쇄회로
KR830000872B1 (ko) 자기매체를 사용한 아날로그 녹음기
CA1201388A (en) Improvements in audio compressors and expanders
JPH0452003B2 (de)
JPS6013621B2 (ja) ノイズリダクシヨンシステム
JPS6333807B2 (de)
JPS6019564B2 (ja) 雑音低減装置

Legal Events

Date Code Title Description
A85 Still pending on 85-01-01
BA A request for search or an international-type search has been filed
BB A search report has been drawn up
BC A request for examination has been filed
V4 Discontinued because of reaching the maximum lifetime of a patent

Free format text: 20010629