[go: up one dir, main page]

KR830008463A - Amplitude fluctuation range change circuit - Google Patents

Amplitude fluctuation range change circuit Download PDF

Info

Publication number
KR830008463A
KR830008463A KR1019810005017A KR810005017A KR830008463A KR 830008463 A KR830008463 A KR 830008463A KR 1019810005017 A KR1019810005017 A KR 1019810005017A KR 810005017 A KR810005017 A KR 810005017A KR 830008463 A KR830008463 A KR 830008463A
Authority
KR
South Korea
Prior art keywords
circuit
signal
passage
input
level portion
Prior art date
Application number
KR1019810005017A
Other languages
Korean (ko)
Other versions
KR890000333B1 (en
Inventor
밀톤 돌비 레이
Original Assignee
밀톤 돌비 레이
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 밀톤 돌비 레이 filed Critical 밀톤 돌비 레이
Publication of KR830008463A publication Critical patent/KR830008463A/en
Application granted granted Critical
Publication of KR890000333B1 publication Critical patent/KR890000333B1/en

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G7/00—Volume compression or expansion in amplifiers
    • H03G7/06—Volume compression or expansion in amplifiers having semiconductor devices
    • H03G7/08—Volume compression or expansion in amplifiers having semiconductor devices incorporating negative feedback
    • 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
    • H03G9/025—Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers frequency-dependent volume compression or expansion, e.g. multiple-band systems
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G7/00—Volume compression or expansion in amplifiers
    • H03G7/002—Volume compression or expansion in amplifiers in untuned or low-frequency amplifiers, e.g. audio amplifiers
    • 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
    • H04B1/62—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 providing a predistortion of the signal in the transmitter and corresponding correction in the receiver, e.g. for improving the signal/noise ratio
    • H04B1/64—Volume compression or expansion arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)

Abstract

내용 없음No content

Description

진폭 변동 범위 변경회로Amplitude fluctuation range change circuit

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제9도는 일반적인 의미에 있어서의 본 발명을 예시한 블록 다이어그램.9 is a block diagram illustrating the invention in a general sense.

제11도는 제10도의 실시예를 보다 상세히 표시한 블록 다이어그램.FIG. 11 is a block diagram illustrating the embodiment of FIG. 10 in more detail.

제12도는 제11도의 실시예에 사용하기 위한 예시적인 교차 결합회로망을 보여주는 회로도.FIG. 12 is a circuit diagram illustrating an exemplary cross coupled network for use in the embodiment of FIG. 11. FIG.

Claims (3)

임계점까지 실질적으로 이득이 일정한 저레벨 부분과, 최대압축비 또는 신장비를 제공하게 이득이 변화하는 임계점 이상의 중간레벨부분과, 저레벨부분의 이득과는 다르지만 실질적으로 이득이 일정한 고레벨부분으로된 2선형 특성을 지닌 제1회로와, 제1회로에 이어져있고 역시 회로에 공통인 주파수 범위내에서 2선형 특엇을 가지며, 회로특성중 중간레벨부분이 회로에 공통된 주파수 범위내에서 스태거되어 호로중 어떤것에 대해 별개적이라기 보다는 넓은 범위의 중간입력 레벨에 걸쳐서 이득변화를 제공하고 높고 낮은 입력 레벨간의 차이가 증가되지만 최대압축비 또는 신장비가 스태거링에 의해 어느 단일 회로의 그것과 같은 최소한 1개의 제2회로와, 여러 회로중 한 회로의 정보신호 성분을 다른 회로와 신호통로에 연결하여 상기한 회로의 상태에 따라 다른 회로의 작용을 변경시키는 최소한 1개의 결합회로로 구성된 입력정보 신호의 진폭변동범위 변경회로.It has a two-linear characteristic consisting of a low level portion where the gain is substantially constant to the threshold point, a middle level portion above the threshold point at which the gain varies to provide a maximum compression ratio or elongation ratio, and a high level portion that is substantially different from the gain of the low level portion but is substantially constant. It has a two-linear feature within the frequency range common to the first circuit, and also common to the circuit, and the intermediate level portion of the circuit characteristics is staggered within the frequency range common to the circuit to separate any of the arc paths. Rather than providing a gain variation over a wider range of intermediate input levels and increasing the difference between high and low input levels, the maximum compression ratio or extension ratio is staggered so that at least one second circuit, such as that of any single circuit, The information signal component of one of the circuits is connected to the other circuit and the signal path to A circuit for changing the amplitude fluctuation range of an input information signal composed of at least one combination circuit that changes the behavior of other circuits depending on the state. 제1항에 있어서, 결합수단이 의해 연결되는 각각의 회로는 진폭변동 범위에 대하여 선형특성을 가지는 주신호 통로와, 진폭변동 범이에 대해 비선형 특성을 가지고 입력이 주신호 통로의 입력 또는 출력에 연결되며 출력이 주통로신호에 따라보조통로로부터 신호를 가산적 또는 감산적으로 합성하는 주신호 통로의 합성수단에 연결된 보조통로로 구성되며, 전기 최소한 1개의 결합회로가 상기한 회로의 보조통로 출력에 연결된 입력과 상기 따는 회로의 보조통로에 신호를 인가하게 연결된 출력을 지닌 입력정보 신호의 진폭변동 범위 변경회로.The circuit of claim 1, wherein each circuit to which the coupling means is connected has a main signal passage having a linear characteristic with respect to an amplitude variation range, and a nonlinear characteristic with respect to an amplitude variation range, and an input is connected to an input or an output of the main signal passage. And an auxiliary passage connected to the synthesizing means of the main signal passage, the output of which is synthesizing the signal from the auxiliary passage additively or subtractively according to the primary passage signal, wherein at least one electrical circuit is provided to output the auxiliary passage of the above circuit. And an amplitude variation range changing circuit having an input connected to and an output connected to apply a signal to an auxiliary passage of the circuit. 제1항에 있어서, 부가적으로 전기회로들의 동적인 작용을 제어용 공통 제어회로로 되어있어, 이 공통 제어회로가 결합회로를 구성하고 전기회로들로부터 신호성분을 유도하며 전기회로들의 동적인 작용을 제어하기 신호를 마련하는 입력정보 신호의 진폭 변동범위 변경회로.2. The circuit of claim 1, further comprising a common control circuit for controlling the dynamic action of the electrical circuits, the common control circuit comprising a coupling circuit, deriving a signal component from the electrical circuits, and controlling the dynamic action of the electrical circuits. An amplitude variation range changing circuit of an input information signal for providing a controlling signal. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019810005017A 1981-12-01 1981-12-19 Dynamic range change circuit device KR890000333B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US32552981A 1981-12-01 1981-12-01
US325,529 1981-12-01
US325529 1981-12-01

Publications (2)

Publication Number Publication Date
KR830008463A true KR830008463A (en) 1983-11-18
KR890000333B1 KR890000333B1 (en) 1989-03-14

Family

ID=23268266

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019810005017A KR890000333B1 (en) 1981-12-01 1981-12-19 Dynamic range change circuit device

Country Status (10)

Country Link
KR (1) KR890000333B1 (en)
BE (1) BE901907Q (en)
CA (1) CA1177759A (en)
CH (1) CH656270A5 (en)
DE (2) DE3153730C2 (en)
FR (1) FR2517495B1 (en)
GB (1) GB2111356B (en)
MY (1) MY8700931A (en)
NL (1) NL192905C (en)
SE (1) SE449282B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3343225A1 (en) * 1983-11-30 1985-06-05 Telefunken Fernseh Und Rundfunk Gmbh, 3000 Hannover Broadcast radio receiving device
US4815068A (en) * 1987-08-07 1989-03-21 Dolby Ray Milton Audio encoder for use with more than one decoder each having different characteristics
US4882761A (en) * 1988-02-23 1989-11-21 Resound Corporation Low voltage programmable compressor
US4882762A (en) * 1988-02-23 1989-11-21 Resound Corporation Multi-band programmable compression system
US5278912A (en) * 1991-06-28 1994-01-11 Resound Corporation Multiband programmable compression system

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US28426A (en) * 1860-05-22 Shortening tires
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
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
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
CA1000617A (en) * 1973-05-17 1976-11-30 Ray M. Dolby Compressors, expanders and noise reduction systems
JPS51127608A (en) * 1975-04-30 1976-11-06 Victor Co Of Japan Ltd Signal transmitting unit
JPS5552971A (en) * 1978-10-16 1980-04-17 Mitsubishi Electric Corp Simulator for radar indicator
BE889428A (en) * 1980-06-30 1981-10-16 Dolby Ray Milton DEVICE FOR MODIFYING THE DYNAMIC RANGE OF INPUT SIGNALS
US4498060A (en) * 1981-12-01 1985-02-05 Dolby Ray Milton Circuit arrangements for modifying dynamic range using series arranged bi-linear circuits

Also Published As

Publication number Publication date
NL192905C (en) 1998-04-02
DE3153730C2 (en) 1992-10-29
GB2111356B (en) 1985-03-20
FR2517495A1 (en) 1983-06-03
MY8700931A (en) 1987-12-31
BE901907Q (en) 1985-07-01
SE8107496L (en) 1983-06-02
NL8105776A (en) 1983-07-01
KR890000333B1 (en) 1989-03-14
FR2517495B1 (en) 1985-11-15
GB2111356A (en) 1983-06-29
DE3151213A1 (en) 1983-06-09
CA1177759A (en) 1984-11-13
DE3151213C2 (en) 1992-11-19
CH656270A5 (en) 1986-06-13
SE449282B (en) 1987-04-13
NL192905B (en) 1997-12-01

Similar Documents

Publication Publication Date Title
KR840003162A (en) Gain control amplifier
JPS5733834A (en) Frequency modulation noise reducing circuit
KR840007330A (en) Adaptive signal weighting system
KR940017180A (en) Data Output Buffer Circuit for High Voltage Noise Reduction
KR900012421A (en) Gain adjuster
GB1526636A (en) Circuit for automatic dynamic compression or expansion
JPS5785110A (en) Dc stabilized power supply circuit
KR830008463A (en) Amplitude fluctuation range change circuit
US4099134A (en) Amplifier with controllable transmission factor and switchable control characteristic
KR900019315A (en) Voltage level switching circuit
KR920001439A (en) Volume control circuit
KR830008280A (en) Noise reduction circuit
IE812602L (en) Variable impedance circuit
KR840001022A (en) Noise reduction device
KR910005597A (en) Electronic circuits (such as FM detection circuits)
KR830004003A (en) Electronic telephone circuit
KR880010409A (en) Noise attenuator
KR910003918A (en) Amplifier
US5239208A (en) Constant current circuit employing transistors having specific gate dimensions
KR970018999A (en) Circuit arrangement comprising a differential amplifier
KR830008462A (en) Changing circuit of amplitude fluctuation range
KR830006992A (en) Circuit arrangement for reducing media overload effect in signal recording and transmission system
KR920001494A (en) Nonlinear Deemphasis Circuit
KR970028925A (en) Constant voltage circuit
JPS5925522B2 (en) Circuit for changing the dynamic range of the input signal

Legal Events

Date Code Title Description
PA0109 Patent application

Patent event code: PA01091R01D

Comment text: Patent Application

Patent event date: 19811219

PG1501 Laying open of application
PA0201 Request for examination

Patent event code: PA02012R01D

Patent event date: 19861217

Comment text: Request for Examination of Application

Patent event code: PA02011R01I

Patent event date: 19811219

Comment text: Patent Application

PE0902 Notice of grounds for rejection

Comment text: Notification of reason for refusal

Patent event date: 19880420

Patent event code: PE09021S01D

PG1605 Publication of application before grant of patent

Comment text: Decision on Publication of Application

Patent event code: PG16051S01I

Patent event date: 19881221

PE0701 Decision of registration

Patent event code: PE07011S01D

Comment text: Decision to Grant Registration

Patent event date: 19890525

PR0701 Registration of establishment

Comment text: Registration of Establishment

Patent event date: 19890614

Patent event code: PR07011E01D

PR1002 Payment of registration fee

Payment date: 19890614

End annual number: 3

Start annual number: 1

PR1001 Payment of annual fee

Payment date: 19920307

Start annual number: 4

End annual number: 4

PR1001 Payment of annual fee

Payment date: 19930311

Start annual number: 5

End annual number: 5

PR1001 Payment of annual fee

Payment date: 19940308

Start annual number: 6

End annual number: 6

PR1001 Payment of annual fee

Payment date: 19950314

Start annual number: 7

End annual number: 7

PR1001 Payment of annual fee

Payment date: 19960306

Start annual number: 8

End annual number: 8

PR1001 Payment of annual fee

Payment date: 19970307

Start annual number: 9

End annual number: 9

PR1001 Payment of annual fee

Payment date: 19980303

Start annual number: 10

End annual number: 10

PR1001 Payment of annual fee

Payment date: 19990227

Start annual number: 11

End annual number: 11

PR1001 Payment of annual fee

Payment date: 20000307

Start annual number: 12

End annual number: 12

PR1001 Payment of annual fee

Payment date: 20010307

Start annual number: 13

End annual number: 13

PC1801 Expiration of term