FI850248L - KOPPLINGSANORDNING FOER DIGITAL NIVAOREGLERING. - Google Patents

KOPPLINGSANORDNING FOER DIGITAL NIVAOREGLERING.

Info

Publication number
FI850248L
FI850248L FI850248A FI850248A FI850248L FI 850248 L FI850248 L FI 850248L FI 850248 A FI850248 A FI 850248A FI 850248 A FI850248 A FI 850248A FI 850248 L FI850248 L FI 850248L
Authority
FI
Finland
Prior art keywords
level
control
controller
digital
nivaoreglering
Prior art date
Application number
FI850248A
Other languages
Finnish (fi)
Other versions
FI850248A0 (en
Inventor
Heinrich Schenk
Original Assignee
Siemens Ag
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 Siemens Ag filed Critical Siemens Ag
Publication of FI850248A0 publication Critical patent/FI850248A0/en
Publication of FI850248L publication Critical patent/FI850248L/en

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers without distortion of the input signal
    • H03G3/20—Automatic control
    • H03G3/30—Automatic control in amplifiers having semiconductor devices
    • H03G3/3005—Automatic control in amplifiers having semiconductor devices in amplifiers suitable for low-frequencies, e.g. audio amplifiers
    • H03G3/3026—Automatic control in amplifiers having semiconductor devices in amplifiers suitable for low-frequencies, e.g. audio amplifiers the gain being discontinuously variable, e.g. controlled by switching
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/02—Amplitude-modulated carrier systems, e.g. using on-off keying; Single sideband or vestigial sideband modulation
    • H04L27/08—Amplitude regulation arrangements

Abstract

1. Circuit arrangement for a digital level control having a control amplifier (RV), of adjustable amplification, which is actuating signals at predetermined intervals from a controller (ADD, T, SS, TV) in order to vary its output level in steps, and having a level discriminator (SUB), which, when the level transmitted as controlled variable by the control amplifier deviates from a set level, transmits to the controller as manipulated variable a signal indicating the direction of the control deviation, characterized in that the level discriminator (SUB) additionally determines the amount of the control deviation, and in that the controller (ADD, T, SS, TV) specifies, as a function of this amount of the control deviation, the intervals at which actuating signals are to be transmitted to the control amplifier.
FI850248A 1984-01-19 1985-01-18 KOPPLINGSANORDNING FOER DIGITAL NIVAOREGLERING. FI850248L (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19843401748 DE3401748A1 (en) 1984-01-19 1984-01-19 CIRCUIT ARRANGEMENT FOR DIGITAL LEVEL CONTROL

Publications (2)

Publication Number Publication Date
FI850248A0 FI850248A0 (en) 1985-01-18
FI850248L true FI850248L (en) 1985-07-20

Family

ID=6225359

Family Applications (1)

Application Number Title Priority Date Filing Date
FI850248A FI850248L (en) 1984-01-19 1985-01-18 KOPPLINGSANORDNING FOER DIGITAL NIVAOREGLERING.

Country Status (4)

Country Link
EP (1) EP0149152B1 (en)
AT (1) ATE41723T1 (en)
DE (2) DE3401748A1 (en)
FI (1) FI850248L (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4808937A (en) * 1986-07-15 1989-02-28 Hayes Microcomputer Products, Inc. Phase-locked loop for a modem
DE3815205C2 (en) * 1987-05-08 1995-06-29 Hitachi Construction Machinery Amplifier circuit with adjustable gain factor
FI97001C (en) * 1993-05-05 1996-09-25 Nokia Mobile Phones Ltd Switching to process a speech signal
DE19752283C2 (en) * 1997-11-26 2000-08-10 Deutsche Telekom Ag Circuit arrangement and method for adaptively regulating the gain of a feedback amplifier for digital signals, in particular for a digital broadcasting system
DE19923790A1 (en) * 1997-11-26 2000-11-30 Deutsche Telekom Ag Adaptive regulation of the gain of a feedback coupled amplifier based upon period and output amplitude
EP1056198B1 (en) * 1999-05-25 2005-04-27 Deutsche Telekom AG Circuitry and Method of Adaptive Control of the Gain of a Feedback Amplifier
DE102010003306A1 (en) * 2010-03-25 2011-09-29 Bayerische Motoren Werke Aktiengesellschaft Device for use in radio of motor car for controlling volume of different audio signals of e.g. TV transmitter, has memory unit with volume control information used for controlling volume of selected audio signal during selection of signal

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3378786A (en) * 1966-11-14 1968-04-16 Collins Radio Co Digitalized signal gain control circuit
US3593176A (en) * 1969-04-14 1971-07-13 Fluke Mfg Co John Error signal sensing system using variable frequency oscillator and up/down counter
US3983381A (en) * 1974-12-18 1976-09-28 International Business Machines Corporation Digital automatic gain control circuit
DE2553631B1 (en) * 1975-11-28 1977-01-20 Siemens Ag Automatic gain compensation for measuring sets - uses transistor attenuators controlled by digital counter and reference source
JPS57138208A (en) * 1981-02-20 1982-08-26 Hitachi Ltd Power detecting circuit and gain control circuit using it

Also Published As

Publication number Publication date
FI850248A0 (en) 1985-01-18
EP0149152A2 (en) 1985-07-24
EP0149152B1 (en) 1989-03-22
DE3477452D1 (en) 1989-04-27
ATE41723T1 (en) 1989-04-15
EP0149152A3 (en) 1985-08-28
DE3401748A1 (en) 1985-08-01

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Legal Events

Date Code Title Description
FA Application withdrawn

Owner name: SIEMENS AKTIENGESELLSCHAFT