SE525392C2 - Throat microphone for e.g. mobile phone headset, comprises electric circuit with microphone part connected in parallel and series with resistors - Google Patents

Throat microphone for e.g. mobile phone headset, comprises electric circuit with microphone part connected in parallel and series with resistors

Info

Publication number
SE525392C2
SE525392C2 SE0400577A SE0400577A SE525392C2 SE 525392 C2 SE525392 C2 SE 525392C2 SE 0400577 A SE0400577 A SE 0400577A SE 0400577 A SE0400577 A SE 0400577A SE 525392 C2 SE525392 C2 SE 525392C2
Authority
SE
Sweden
Prior art keywords
microphone
throat
resistor
capacitor
series
Prior art date
Application number
SE0400577A
Other languages
Swedish (sv)
Other versions
SE0400577D0 (en
SE0400577L (en
Inventor
Bo Franzen
Original Assignee
Bo Franzen
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 Bo Franzen filed Critical Bo Franzen
Priority to SE0400577A priority Critical patent/SE525392C2/en
Publication of SE0400577D0 publication Critical patent/SE0400577D0/en
Publication of SE0400577L publication Critical patent/SE0400577L/en
Publication of SE525392C2 publication Critical patent/SE525392C2/en

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M9/00Arrangements for interconnection not involving centralised switching
    • H04M9/002Arrangements for interconnection not involving centralised switching with subscriber controlled access to a line, i.e. key telephone systems
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00Details of transducers, loudspeakers or microphones
    • H04R1/14Throat mountings for microphones
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00Circuits for transducers, loudspeakers or microphones
    • H04R3/002Damping circuit arrangements for transducers, e.g. motional feedback circuits

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Telephone Set Structure (AREA)

Abstract

The microphone part (14) forms part of an electric circuit with an earth (13) and a connection pole (12). The circuit contains a first resistor (9) with a resistance of 1.5-3.8 kOhm is connected in parallel with at least one second resistor (15) with a total resistance of 2.7 kOhm and with the microphone part. The second resistor and microphone part are connected in series with each other. Increasing the resistance of the second resistor reduces microphone sensitivity and reducing this resistance increases microphone sensitivity in order to obtain better communication between two or more users. The microphone part is a capacitor microphone. The microphone (1) is connected via a cable to a walkie talkie (8) and/or a mobile phone and is worn in contact with the throat.

Description

0000 0 O 0010 I 0 0 O e I eoel I O coca 0 soon 1 0 een oooa I oeoo n I v u ncssua 0 0 pos : 0 0 no. : scenen lyfta störningen till en nivå som ger kraftiga hörbara utslag på den anslutna mobiltelefonens eller 'med kommunikationsradions mikrofoningång mobiltelefon kraftiga störningsljud i mottagarpartens eller kommunikationsradio som påföljd. 0000 0 O 0010 I 0 0 O e I eoel I O coca 0 soon 1 0 een oooa I oeoo n I v u ncssua 0 0 pos: 0 0 no. : the stage lifts the interference to a level that produces loud audible effects on the connected mobile phone or 'with the microphone input of the communication radio mobile phone loud interference sounds in the receiving party's or communication radio as a result.

Syftet att sänka från med föreliggande uppfinning är ljudvolymen som strupmikrofonen upptar användarens stämband med motsvarande antal decibel, så att ingångskänsligheten vid kommunikationsradions eller mobiltelefonens ingång i mikrofonen inte överskrids.The object of lowering with the present invention is the volume of sound which the throat microphone occupies the user's vocal cords with the corresponding number of decibels, so that the input sensitivity at the input of the communication radio or mobile telephone into the microphone is not exceeded.

Tack vare uppfinningen har man med hjälp av inkoppling av motstånd åstadkommit en dämpning av ljudvolymen, som mikrofonen upptar från användarens stämband, varvid denna inte överskrider kommunikationsradions eller mobiltelefonens Då vinner man att mikrofons ingångs ingångskänslighet. dessutom en sänkning av mikrofonens förmåga fånga omgivande buller med samma antal decibel. I en uppfinningen anordnas 15k0hm, föredragen utföringsform av ett kraftigt motstånd på som ligger i ett på är parallellkoppling med motstånd 2,7k0hm svagare och mikrofonen, som i sin tur brygga motståndet seriekopplade med varandra, varvid en åstadkommes, där man att öka 2,7k0hms genom värde minskar mikrofonens känslighet och genom att minska motståndet 2,7k0hm ökar mikrofonens Motståndet känslighet till önskad känslighetsnivå. 2,7kOhm kan varieras mellan l,5kOhm till 3,8k0hm med liknande resultat, men 2,7k0hms befinns vara det optimala värdet för önskad funktion. Mikrofonen enligt ovan är oftast en kondensatormikrofon, d.v.s. 0 0 0 euoooe 0 0000 0 0 0 0000 0 I Q 00 0 00 0000 0000 000 O I I I O n e 0 0 e 000 0 I U O I O O I U 00 00 000 0 0 00 0 0 0 0 0 e I O I ICO IC O 525 392 3 att dess membran är uppbyggt så att den även fungerar som en kondensator. För att dessutom förhindra att mikrofonen inne i strupmikrofonen tar in störningar som påverkar ljudkvaliteten på den mottagande partens sida från den anslutna mobiltelefonens via strupmikrofonens kablar, har man enligt en alternativ utföringsform av uppfinningen dessutom monterat en kondensator med ca en 30-40pF direkt mellan dess anslutningspol och dess jordanslutning på mikrofonens baksida och därmed erhållit en mikrofon inuti strupmikrofonen där störningen från kablarna fångar upp dessa, varvid de passerar direkt via kondensatorn ner till kretsjord utan att störningen kan komma in i dkrofonen, som oftast är en kondensatormikrofon. Tack vare denna' konstruktion förhindrar man även störningar beroende på ett dåligt avstört tändsystem på en Mc eller snöskoter eller någon annan gnisttändningsberoende motor att tas upp utav kondensator mikrofonen i strupmikrofonen.Thanks to the invention, by means of the connection of a resistor, an attenuation of the sound volume which the microphone picks up from the user's vocal cords has been achieved, this not exceeding the communication sensitivity of the communication radio or the mobile telephone. in addition, a decrease in the microphone's ability to capture ambient noise by the same number of decibels. In one invention, 15k0hm, the preferred embodiment of a strong resistor is located which lies in an on is parallel connection with resistor 2.7k0hm weaker and the microphone, which in turn bridges the resistor connected in series with each other, whereby one is obtained, where to increase 2.7k0hm by value the sensitivity of the microphone decreases and by reducing the resistance of 2.7k0hm the resistance of the microphone increases the sensitivity to the desired sensitivity level. 2.7kOhm can be varied between 1.5kOhm to 3.8k0hm with similar results, but 2.7k0hm is found to be the optimal value for the desired function. The microphone as above is usually a capacitor microphone, i.e. 0 0 0 euoooe 0 0000 0 0 0 0000 0 IQ 00 0 00 0000 0000 000 OIIIO ne 0 0 e 000 0 IUOIOOIU 00 00 000 0 0 00 0 0 0 0 0 e IOI ICO IC O 525 392 3 that its membrane is constructed so that it also acts as a capacitor. In addition, in order to prevent the microphone inside the throat microphone from interfering with the sound quality of the receiving party from the connected mobile phone via the throat microphone cables, according to an alternative embodiment of the invention a capacitor with about 30-40pF is mounted directly between its connection pole. and its ground connection on the back of the microphone and thus obtained a microphone inside the throat microphone where the interference from the cables picks them up, passing directly via the capacitor down to the circuit ground without the interference being able to enter the microphone, which is usually a capacitor microphone. Thanks to this design, interference due to a poorly disturbed ignition system on a Mc or snowmobile or any other spark ignition-dependent motor is also prevented from being picked up by the capacitor microphone in the throat microphone.

Uppfinningen beskrivs närmare nedan med hjälp av två utföringsexempel av uppfinningen, på vilka fig. 1 visar en strupmikrofon anordnad på en användare hals, fig. 2 ett kopplingsschema på hur mikrofonen är dämpad med motstånd och en kondensator.The invention is described in more detail below with the aid of two exemplary embodiments of the invention, in which Fig. 1 shows a throat microphone arranged on a user's neck, Fig. 2 a wiring diagram of how the microphone is attenuated with a resistor and a capacitor.

Såsom framgår av fig. 1 visas en användare 2 i form av en mottagande part 5, som på sin strupe 3 har anbringat en strupmikrofon 1, vilken innehåller en OI OIIO COIO lill O O I 0 000 I D O I OO ICO I mikrofon 14 med dess ingång 4 av kablar 10, leder till kommunikationsradions 8 ingång 18.As can be seen from Fig. 1, a user 2 is shown in the form of a receiving part 5, which has mounted on its throat 3 a throat microphone 1, which contains an O1 OIIO COIO cables 10, leads to the input 18 of the communication radio 8.

Såsom framgår av fig.2, i kopplingsschemat visas en krets 7 är uppbyggd inne i strupmikrofonen 1 att klara dämpningen enligt uppfinningen. kraftigt motstånd 9 på 15kOhm ligger parallellkoppling med ett svagare motstånd 15 2,7kOhm och till mikrofonen 14. Dessa är i sin seriekopplade med varandra. Mikrofonen 14 är kondensatormikrofon 16. En kondensator 11 med ca u 00000 0 0 s ae 0 eoeoeg ass se SOIII 811 30- 40pF är kopplad direkt mellan dess anslutningspol 12 och dess jordanslutning 13.As can be seen from Fig. 2, the wiring diagram shows a circuit 7 built up inside the throat microphone 1 to handle the attenuation according to the invention. strong resistor 9 of 15kOhm is parallel connection with a weaker resistor 15 2.7kOhm and to the microphone 14. These are in series connected to each other. The microphone 14 is a capacitor microphone 16. A capacitor 11 having a capacitor 11 of about 50 ° F is connected directly between its terminal 12 and its ground terminal 13.

Claims (1)

1. 525 392 5 Patentkrav. Dämpningsfunktion vid en mikrofon (14) anbringad i. en strupmikrofon. (1) kopplad till en kabel (7) för anslutning till en kommunikationsradio (8) och/eller en mobiltelefon, vilken strupmikrofon (1) anbringas vid strupen (3) på en användare (2), kännetecknad av mikrofonen (14) i strupmikrofonen (1) är tillkopplad en elektriskt ledande krets (7) ansluten till en jordanslutning (13) och en anslutningspol (12), varvid åtminstone ett motstånd (9) på ett sammanlagt värde på 1,5kOhm till 3,8k0hm är tillkopplat kretsen (7), som ligger i parallellkoppling med minst ett motstånd (15) på ett sammanlagt värde på i. huvudsak 2,7kOhm och mikrofonen (14), som i sin tur är seriekopplade med varandra, varvid en brygga åstadkommas, där man vid en ökning av motståndet (15) 2,7kOhm värde minskar mikrofonens (1) känslighet och vid en minskning av motståndet (15) 2,7kOhm ökar mikrofonens (14) känslighet till önskad känslighetsnivå för att erhålla en bättre kommunikation mellan minst två användare (2). Dämpningsfunktion enligt patentkrav 1, kännetecknad av att mikrofonen (14) är en kondensatormikrofon (16). Dämpningsfunktion enligt patentkrav 1, kännetecknad av att kretsen (7) är tillkopplad minst en kondensator (11) med ett 525 392 sammanlagt värde på ca en 30-40pF direkt mellan dess anslutningspolen (12) och jordanslutningen (13), varvid de elektroniska störningar passerar direkt via kondensatorn (11) ner till kretsjord utan att störningen kan komma in i mikrofonen.1 525 392 5 Patent claims. Attenuation function at a microphone (14) mounted in a throat microphone. (1) connected to a cable (7) for connection to a communication radio (8) and / or a mobile telephone, which throat microphone (1) is attached to the throat (3) of a user (2), characterized by the microphone (14) in the throat microphone (1) is connected an electrically conductive circuit (7) connected to a ground connection (13) and a connection pole (12), wherein at least one resistor (9) of a total value of 1.5 kOhm to 3.8 k0hm is connected to the circuit (7). ), which is in parallel connection with at least one resistor (15) of a total value of essentially 2.7 kOhm and the microphone (14), which in turn are connected in series with each other, whereby a bridge is provided, where with an increase of the resistance (15) 2.7kOhm value decreases the sensitivity of the microphone (1) and when the resistance (15) decreases to 2.7kOhm, the sensitivity of the microphone (14) increases to the desired sensitivity level to obtain a better communication between at least two users (2). Attenuation function according to Claim 1, characterized in that the microphone (14) is a capacitor microphone (16). Attenuation function according to claim 1, characterized in that the circuit (7) is connected to at least one capacitor (11) with a total value of about a 30-40pF directly between its connection pole (12) and the ground connection (13), the electronic disturbances passing directly via the capacitor (11) down to the circuit ground without the interference being able to enter the microphone.
SE0400577A 2004-03-04 2004-03-04 Throat microphone for e.g. mobile phone headset, comprises electric circuit with microphone part connected in parallel and series with resistors SE525392C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SE0400577A SE525392C2 (en) 2004-03-04 2004-03-04 Throat microphone for e.g. mobile phone headset, comprises electric circuit with microphone part connected in parallel and series with resistors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE0400577A SE525392C2 (en) 2004-03-04 2004-03-04 Throat microphone for e.g. mobile phone headset, comprises electric circuit with microphone part connected in parallel and series with resistors

Publications (3)

Publication Number Publication Date
SE0400577D0 SE0400577D0 (en) 2004-03-04
SE0400577L SE0400577L (en) 2005-02-15
SE525392C2 true SE525392C2 (en) 2005-02-15

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ID=32067345

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Application Number Title Priority Date Filing Date
SE0400577A SE525392C2 (en) 2004-03-04 2004-03-04 Throat microphone for e.g. mobile phone headset, comprises electric circuit with microphone part connected in parallel and series with resistors

Country Status (1)

Country Link
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11849276B2 (en) 2020-02-12 2023-12-19 Patent Holding i Nybro AB Throat headset system

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105611440B (en) * 2010-04-19 2019-01-11 海宝拉株式会社 headset

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11849276B2 (en) 2020-02-12 2023-12-19 Patent Holding i Nybro AB Throat headset system

Also Published As

Publication number Publication date
SE0400577D0 (en) 2004-03-04
SE0400577L (en) 2005-02-15

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