DE2932876A1 - AVC to adjust car radio volume - using microphone to control amplifier gain according to external noise level - Google Patents

AVC to adjust car radio volume - using microphone to control amplifier gain according to external noise level

Info

Publication number
DE2932876A1
DE2932876A1 DE19792932876 DE2932876A DE2932876A1 DE 2932876 A1 DE2932876 A1 DE 2932876A1 DE 19792932876 DE19792932876 DE 19792932876 DE 2932876 A DE2932876 A DE 2932876A DE 2932876 A1 DE2932876 A1 DE 2932876A1
Authority
DE
Germany
Prior art keywords
microphone
external noise
avc
noise level
control amplifier
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.)
Withdrawn
Application number
DE19792932876
Other languages
German (de)
Inventor
Heinrich 31171 Nordstemmen Rodewald
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DE19792932876 priority Critical patent/DE2932876A1/en
Publication of DE2932876A1 publication Critical patent/DE2932876A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/20—Automatic control
    • H03G3/30—Automatic control in amplifiers having semiconductor devices
    • H03G3/32—Automatic control in amplifiers having semiconductor devices the control being dependent upon ambient noise level or sound level

Landscapes

  • Control Of Amplification And Gain Control (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)

Abstract

The volume control has a microphone picking up external noise caused by the movement of the vehicle. The microphone output signal is converted into a gain control signal for the radio amplifier. The gain control signal may also be made dependent on the speed of the vehicle by including the output from a tachometer or engine speed detector. The control can also be used with tape cassettes and citizen's band radio. A potentiometer allows the user to set the baseline volume to the value he prefers.

Description

Patentbeschreibung Patent description

Titel: Automatische Lautstärkeregelung in Abhängigkwit von Fahrgeräuschen für akustische Geräte in Fahrzeugen.Title: Automatic volume control depending on driving noises for acoustic devices in vehicles.

Anwendungsgebiet Die Erfindung betrifft alle in Fahrzeugen betriebenen akustischen Geräte wie: Radio, Cassettenrecorder, CB-Funk usw.Field of application The invention relates to all vehicles operated in vehicles acoustic devices such as: radio, cassette recorder, CB radio, etc.

Zweck: Bei derartigen Geräten ist es erforderlich die Lautstärke den jeweiligen Fahrgeräuschen anzupassen.Purpose: With such devices it is necessary to adjust the volume to adapt to the respective driving noises.

Stand der Technik: Es ist bekannt, zur Erfüllung dieser Erfordernisse die Lautstärke den jeweiligen Fahrgeräuschen von Hand anzupassen.Prior Art: It is known to meet these needs to adjust the volume by hand to the respective driving noises.

Kritik des Standes der Technik: Das häufige Nachregeln von Hand ist lästig und beeinträchtigt die Fahrsicherheit.Criticism of the state of the art: The frequent readjustments by hand are annoying and impairs driving safety.

Aufgabe: Der Erfindung liegt die Aufgabe zugrunde, das Nachregeln von Hand überflüssig zu machen.Task: The invention is based on the task of readjusting to make it superfluous by hand.

Lösung: Diese Aufgabe wird dadurch gelöst, daß die lautstärke durch den Strom eines Mikrofons, das die Fahrgeräusche aufnimmt, geregelt wird. Dieses Mikrofon wird außerhalb des Fahrgastraumes installiert um ein Rückkoppeln zu vermeiden.Solution: This task is solved by increasing the volume the current of a microphone, which picks up the driving noises, is regulated. This The microphone is installed outside the passenger compartment to avoid feedback.

Weitere ausgestaltung der Erfindung: Um eine solche Lautstärkeregelung den individuellen Wünschen des Fahrers angleichen zu können, wird ein Potentiometer zwischen Mikrofon und Regelelektronik geschaltet.Another embodiment of the invention: To such a volume control A potentiometer is used to adapt the individual wishes of the driver switched between microphone and control electronics.

erzielbare Vorteile: Die mit der Erfindung erzielbaren Vorteile bestehen darin, daß die Verstandlichkeit einer Rundfunksendung oder Bandwiedergabe auch bei ständig wechselnden Fahrgeräuschen, bedingt durch unterschiedliche Geschwindigkeiten oder Anhalten und Wieder Anfahren an Verkehrsampeln oder Bahnschranken optimal erha]ten bleibt.Achievable Advantages: The advantages that can be achieved with the invention exist in that the intelligibility of a radio broadcast or tape playback also contributes to constantly changing driving noises, caused by different speeds or stopping and starting again at traffic lights or railway barriers remain.

Claims (1)

Patentansprüche Oberbegriff: .) Automatische lautstärkeregelung in abhängigkeit von Fahrgeräuschen für akustische Geräte in Fahrzeugen. Claims preamble:.) Automatic volume control in dependence on driving noise for acoustic devices in vehicles. Kennzeichnender Teil: Dadurch gekennzeichnet, daß die Lautstärke der Gerät durch die Fahrgeräusche, die über ein Mikrofon aufgenommsn werden, automatisch geregelt wird.Characteristic part: This indicates that the volume of the Device by the driving noises, which are recorded via a microphone, automatically is regulated. Oberbegriff des Unteranspruchs: 2.) Automatisvhe Lautstärkeregelung nach Anspruch 1.Preamble of the dependent claim: 2.) Automatic volume control according to claim 1. Kennzeichnender Teil des Unteranspruchs Dadurch gekennzeichnet, daß die automatische Regelung sowohl über ein Mikrofon wie auch über die Motor- oder Tachometer-drehzal geregelt werden kann.Characteristic part of the dependent claim characterized in that the automatic control both via a microphone and via the motor or Speedometer speed can be regulated.
DE19792932876 1979-08-14 1979-08-14 AVC to adjust car radio volume - using microphone to control amplifier gain according to external noise level Withdrawn DE2932876A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19792932876 DE2932876A1 (en) 1979-08-14 1979-08-14 AVC to adjust car radio volume - using microphone to control amplifier gain according to external noise level

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19792932876 DE2932876A1 (en) 1979-08-14 1979-08-14 AVC to adjust car radio volume - using microphone to control amplifier gain according to external noise level

Publications (1)

Publication Number Publication Date
DE2932876A1 true DE2932876A1 (en) 1981-03-26

Family

ID=6078422

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19792932876 Withdrawn DE2932876A1 (en) 1979-08-14 1979-08-14 AVC to adjust car radio volume - using microphone to control amplifier gain according to external noise level

Country Status (1)

Country Link
DE (1) DE2932876A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2778155A1 (en) * 1998-04-30 1999-11-05 Peugeot Vehicle audible and visual alarm system monitoring vehicle operational systems

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2778155A1 (en) * 1998-04-30 1999-11-05 Peugeot Vehicle audible and visual alarm system monitoring vehicle operational systems

Similar Documents

Publication Publication Date Title
DE3816918C1 (en)
DE3830423C2 (en)
DE69023133T3 (en) NOISE SYNTHETIZER IN A VEHICLE.
DE3037298C2 (en) Acoustic information or warning device for motor vehicles with automatic speed control device
EP0528817B2 (en) Sound generating device
DE3032287A1 (en) ACOUSTIC WARNING DEVICE FOR VEHICLES
DE3420463A1 (en) Device for acoustic irradiation
EP0319777A2 (en) Process and circuitry to automatically control sound level depending on ambient noise
DE3009040C2 (en) Toy vehicle with electric power supply, electric drive and radio remote control
DE2932876A1 (en) AVC to adjust car radio volume - using microphone to control amplifier gain according to external noise level
EP0330062B2 (en) Radio receiver for a vehicle
DE3017312A1 (en) CONTROL ARRANGEMENT FOR CONTROLLING THE VOLUME FOR TONE SIGNALS EMITTED BY A CAR RADIO
DE3624031C2 (en)
DE2324531B1 (en) SPEED WARNING SYSTEM FOR A MOTOR VEHICLE
DE2646232A1 (en) SOUND REPRODUCTION DEVICE
DE4430931A1 (en) Device for controlling the volume of a car radio based on driving noise
DE4406352A1 (en) Car radio sound reproduction device with a noise-dependent volume control
DE3005602A1 (en) Road vehicle route information device - controlled by processor receiving distance monitoring signals e.g. from tachometer
DE2833208A1 (en) AVC for car radio - adjusts to ambient noise and speed using pulse signals from tachometer
DE3513017A1 (en) MOTOR VEHICLE AUDIO SYSTEM
DE2731666C3 (en) Arrangement for keeping the speed of a rotating element constant, in particular a turntable of a turntable
DE2717923C3 (en) Auxiliary device for motorcycle driving lessons with a radiotelephone
DE2547659A1 (en) Car radio volume control - is adjusted to compensate for noise by gain control signal derived from speed measurement
DE3521220C2 (en) Method for determining the position of an object moving on a path, the direction of which changes frequently
DE2310562A1 (en) CIRCUIT ARRANGEMENT WITH A SPEAKER AND VOLUME CONTROL

Legal Events

Date Code Title Description
8139 Disposal/non-payment of the annual fee