CN2449436Y - Sound controlled microphone for intercom - Google Patents
Sound controlled microphone for intercom Download PDFInfo
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- CN2449436Y CN2449436Y CN 00254108 CN00254108U CN2449436Y CN 2449436 Y CN2449436 Y CN 2449436Y CN 00254108 CN00254108 CN 00254108 CN 00254108 U CN00254108 U CN 00254108U CN 2449436 Y CN2449436 Y CN 2449436Y
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Abstract
The utility model relates to a sound controlled microphone of an intercom, which is used for voice signal input and at least comprises a mode switching switch and a sound source signal coupling circuit which can output a voice signal coupled with a control signal. Moreover, a sound source inputting microphone is connected with a voice control switch which is electrically connected with a microphone circuit at the same time. A sound source emitting control switch is electrically connected with a sound source signal input circuit and an output signal control circuit. The input end of a press on-off control circuit is electrically connected with the sound source emitting control circuit and the control switch, and the output end is electrically connected with an input control circuit. A trigger circuit and a mobile phone are connected with the press on-off control circuit, the sound source emitting control circuit and one end of the control switch. When a signal is input, the mobile phone can transmit the signal instantly.
Description
The utility model relates to a kind of intercom telephone transmitter, refers to a kind of beginning of giving orders or instructions by voice control and the intercom acoustic control telephone transmitter of end especially.
Known short-distance wireless talkback system is equipped with a wireless transmission communication host and a microphone and loudspeaker intercom, this microphone and loudspeaker intercom are with this wireless transmission communication host of wired electrical connection, general application is quite extensive, comprise that police and construction site or other short haul connection use, but, above-mentioned device is because of carrying out a kind of function of giving orders or instructions or receiving words, so, when execution is given orders or instructions or is received the function of words, the all selections that must give orders or instructions or receive words by an options button with hand, therefore quite inconvenient in the operation.
Therefore, the purpose of this utility model is to provide a kind of intercom acoustic control telephone transmitter, makes the user control the switching of giving orders or instructions or receiving words by the mode of acoustic control, thereby makes it easy and simple to handle.
For achieving the above object, the utility model provides a kind of intercom acoustic control telephone transmitter, links to each other with a mobile phone, can be applicable to push call mode and voice control call mode, and it comprises at least:
One phonetic entry microphone for the speech sound signal input;
One mode selector switch, be provided with an electric crystal, can be for the voltage cut-out and the control circuit that switch to this electric crystal output with controlling;
One with the be coupled source of sound signal coupling circuit of controlling signal output of speech sound signal, connect with this source of sound input Mike wind facies, the output of this source of sound signal coupling circuit then is electrically connected with an end of a speech controling switch, and the other end of this control switch then is electrically connected with microphone circuit;
One source of sound signal input circuit connects mutually with the output of this source of sound signal coupling circuit, and the other end of this source of sound signal input circuit is electrically connected with an end of this source of sound signal coupling circuit and these circuits for triggering;
One source of sound countdown circuit, an end is electrically connected with an end of this source of sound input circuit and this output signal control circuit;
One push switch control circuit, the input of this push switch control circuit is electrically connected with this source of sound countdown circuit and this control switch respectively, the output of this push switch control circuit is electrically connected with the input of this input control circuit, and the output of this input control circuit is electrically connected with the input control end of this mode selector switch;
One source of sound countdown circuit connects with an end of push switch control circuit, and the other end connects mutually with this source of sound signal input circuit and this source of sound signal coupling circuit;
One output signal control circuit is electrically connected with this source of sound countdown circuit and this source of sound signal input circuit respectively;
One circuits for triggering, input are electrically connected with this source of sound signal input circuit and this source of sound signal coupling circuit respectively;
One microphone circuit, an end is electrically connected with an end of this control switch and this mode selector switch;
This mobile phone is electrically connected with an end of this push switch control circuit, this source of sound countdown circuit and this control switch;
When circuit working of the present utility model is pressed die pressing type following time at PTT (push-to-talk), selecting to switch to voltage cut-out by this mode selector switch connects mutually with control circuit, then input control circuit promptly supplies power to this source of sound countdown circuit and this source of sound signal input circuit makes its action, this moment is when having the source of sound input when source of sound input microphone, this source of sound countdown circuit will make mobile phone emission source of sound signal, defeated this output signal control circuit that also triggers of source of sound signal input circuit, make this output signal control circuit produce an output signal, make this mobile phone stop signal output up to source of sound disappearance side;
When this control model during in the voice control model, this mode selector switch is selected to switch to voltage cut-out and is connected mutually with the emitter-base bandgap grading of electric crystal, when source of sound is imported, then the output of this source of sound signal coupling circuit will trigger these circuits for triggering, and make input control circuit produce an output signal, make this mobile phone stop signal output up to source of sound disappearance side;
When this source of sound input microphone had the signal input, then this microphone circuit promptly was activated, and makes microphone MICl enter pattern.
Also can import the switch of connecting between the microphone with source of sound at the base terminal of this source of sound signal coupling circuit.This microphone can be the earphone that has loud speaker in.
Intercom acoustic control telephone transmitter provided by the utility model, the user carries out and to give orders or instructions or when receiving the words function, can control the switching of giving orders or instructions or receiving words by the mode of acoustic control, makes that this device is simple to operate, and then has made things convenient for the user.
Below in conjunction with drawings and the specific embodiments the utility model is further described in more detail.
Fig. 1 is a circuit diagram of the present utility model.
See also Fig. 1, the utility model is that an intercom acoustic control telephone transmitter 1 and a mobile phone 8 lines use, and can be applicable to conversation PTT (push-to, talk) pattern and voice control conversation VOX (voiceoperate) pattern of pushing; The utility model comprises a mode selector switch 2, a push switch control circuit 10, an input control circuit 12, a source of sound countdown circuit 14, a source of sound signal input circuit 16, a source of sound signal coupling circuit 18, a control switch 4, an output signal control circuit 19 and circuits for triggering 20, a microphone circuit 21 and source of sound input microphone 25.
This mode selector switch 2 is provided with an electric crystal 201 (this electric crystal is the electric crystal of n-p-n type BJT in the present embodiment in the present embodiment, but be not limited thereto the electric crystal of kind of form when implementing), a voltage cut-out 202 and a control circuit 204, this voltage cut-out 202 can switch to the emitter-base bandgap grading end of this electric crystal 201 for control (will describe in detail hereinafter); This source of sound signal coupling circuit 18 is formed drain electric crystal circuit altogether by electric capacity, resistance and electric crystal, the base terminal of this source of sound signal coupling circuit 18 connects mutually with source of sound input microphone 25, wherein, be the convenience of switching and controlling, can import the switch 6 of connecting between the microphone 25 with source of sound at the base terminal of this source of sound signal coupling circuit 18; The signal output end of this source of sound input microphone 25 is electrically connected with the base terminal of microphone circuit 21 and this source of sound signal coupling circuit 18 respectively.
(this electric crystal is the electric crystal of n-p-n type BJT to this push switch control circuit 10 in the present embodiment by the electric crystal of two n-p-n type BJT, but be not limited thereto the electric crystal of kind of form when implementing), electric capacity and resistance are formed, the base terminal of the electric crystal Q1 of one n-p-n type BJT is electrically connected with an end of a resistance R 1, the other end of this resistance R 1 is electrically connected with an end of resistance R 2, the other end of this R2 is electrically connected with the drain end of electric crystal Q1 and the drain end of electric crystal Q2, one end of this resistance R 1 also is electrically connected with an end of a capacitor C 1, the other end of this capacitor C 1 is ground connection then, the emitter-base bandgap grading end of electric crystal Q1 is electrically connected with the base terminal of this electric crystal Q2, the then external resistance R 3 of the emitter-base bandgap grading end of this electric crystal Q2, the other end of this resistance R 3 then is electrically connected with an end of a capacitor C 3, this capacitor C 3 hold ground connection in addition.
The input of this push switch control circuit 10 is electrically connected with this source of sound countdown circuit 14 and this control switch 4 respectively, the output of this push switch control circuit 10 is electrically connected with the input of this input control circuit 12, the output of this input control circuit 12 is electrically connected with the input control end of this mode selector switch 2, one end of this source of sound countdown circuit 14 is electrically connected with an end of this source of sound signal input circuit 16 and this output signal control circuit 19, the other end of this source of sound signal input circuit 16 is electrically connected with an end of this source of sound signal coupling circuit 18 and these circuits for triggering 20, the output of this source of sound signal coupling circuit 18 then is electrically connected with an end of a VOX control switch 6, and the other end of this VOX control switch 6 then is electrically connected with microphone circuit 21.
This input control circuit 12 in the present embodiment, by electric crystal Q3, electric crystal Q4, electric crystal Q5, resistance R 4, resistance R 5, resistance R 6 and resistance R 7 are formed, this electric crystal Q3 is that (this electric crystal is the electric crystal of p-n-p type BJT to a pnp electric crystal in the present embodiment at present embodiment, but be not limited thereto the electric crystal of kind of form when implementing), its emitter-base bandgap grading end and base terminal are equipped with a resistance R 4, resistance R 5 then connects with the base terminal of this electric crystal Q3 and the drain end of electric crystal Q4 respectively mutually, this resistance R 6 and resistance R 7 are established in extremely then connecing respectively of this electric crystal Q4, the drain termination of this electric crystal Q3 is provided with a resistance R 8, and the two ends of this resistance R 8 then are equipped with capacitor C 4 respectively, C5.
This source of sound countdown circuit 14 in the present embodiment, by electric crystal Q5, resistance and capacitor C 6 are formed, this electric crystal Q5 is that (this electric crystal is the electric crystal of n-p-n type BJT to a npn electric crystal in the present embodiment at present embodiment, but be not limited thereto the electric crystal of kind of form when implementing), its emitter-base bandgap grading termination is provided with a resistance, the other end of this resistance is ground connection then, the drain end of electric crystal Q5 then with the electric crystal Q1 of push switch control circuit 10, the drain end of Q2 connects, the base terminal of this electric crystal Q5 then connects with an end of a capacitor C 6 and an end of two divider resistances, and the other end of this capacitor C 6 connects with this source of sound signal coupling circuit 18 mutually with this source of sound signal input circuit 16.
This source of sound signal input circuit 16 in the present embodiment, formed by electric crystal Q6, resistance and capacitor C 7, this electric crystal Q6 is that (this electric crystal is the electric crystal of n-p-n type BJT to a n-p-n electric crystal in the present embodiment at present embodiment, but be not limited thereto the electric crystal of kind of form when implementing), the drain end of electric crystal Q6 connects by a resistance mutually with base terminal, the drain end of this electric crystal Q6 also connects and establishes another resistance, this resistance then connects mutually with the anode of a diode D1, and the base terminal of electric crystal Q6 then is equipped with a capacitor C 7.
This source of sound signal coupling circuit 18 in the present embodiment, formed by electric crystal Q7, resistance and capacitor C 8, it is similar to this source of sound signal input circuit 16 that the circuit of this source of sound signal coupling circuit 18 is formed structure, the drain end of electric crystal Q7 connects by a resistance mutually with base terminal, the drain end of this electric crystal Q7 also connects and establishes another resistance, this resistance then connects mutually with the negative terminal of a diode D1, and the base terminal of electric crystal Q7 then is equipped with a capacitor C 8.
This output signal control circuit 19 is provided with an amplifier A1 in the present embodiment, diode D2, resistance and electric capacity are formed, the output of this amplifier A1 is electrically connected with the anode of this diode D2, the positive input terminal of this amplifier A1 then is equipped with a ground capacity and an earth resistance respectively, the negative input end of this amplifier A1 then is equipped with a resistance, the other end of this resistance is electrically connected with the other end of above-mentioned earth resistance (electric capacity) and the positive input terminal of amplifier A1, and the negative input end of this amplifier A1 is electrically connected with this source of sound countdown circuit 14 and this source of sound signal input circuit 16 respectively.
These circuits for triggering 20 are provided with an amplifier A2 in the present embodiment, capacitor C 9 and other resistance and electric capacity are formed, the output of this amplifier A2 is electrically connected with an end of this capacitor C 9, the positive input terminal of this amplifier A2 then is equipped with a ground capacity and an earth resistance respectively, the negative input end of this amplifier A2 then is equipped with a resistance, the other end of this resistance is electrically connected with the other end of above-mentioned earth resistance (electric capacity) and the positive input terminal of amplifier A2, and the negative input end of this amplifier A2 is electrically connected with this source of sound signal input circuit 16 and this source of sound signal coupling circuit 18 respectively.
This microphone circuit 21 is made up of a microphone MICl and electric crystal Q8, Q9, the emitter-base bandgap grading end ground connection of this electric crystal Q8, the base terminal of this electric crystal Q8 is electrically connected with the emitter-base bandgap grading end of electric crystal Q9, the drain end of this electric crystal Q8, Q9 is electrically connected, and the end electricity of the drain end of electric crystal Q8, Q9 and this microphone MICl connects, the other end of this microphone MICl is electrically connected with an end of a control switch 4 and this mode selector switch 2
One mobile phone 8 is electrically connected with an end of this push switch control circuit 10, this source of sound countdown circuit 14 and this control switch 4, and when this mobile phone 8 had the signal input, this mobile phone 8 was about to the signal emission.
During circuit working of the present utility model, press under the die pressing type at PTT (push-to-talk), switching to voltage cut-out 202 by the selection of this mode selector switch connects mutually with control circuit 204, then input control circuit 12 promptly supplies power to this source of sound countdown circuit 14 and this source of sound signal input circuit 16 makes its action, this moment is when having the source of sound input when source of sound input microphone 25, this source of sound countdown circuit 14 will make mobile phone 8 emission source of sound signals, in addition, the output of source of sound signal input circuit 16 also triggers this output signal control circuit 19, make this output signal control circuit 19 produce an output signal, make this mobile phone 8 stop signals output up to source of sound disappearance side.
When this control model when formula is touched in voice control, the selection of this mode selector switch switches to voltage cut-out 202 and connects mutually with the emitter-base bandgap grading of electric crystal 201, when source of sound is imported, then the output of this source of sound signal coupling circuit 18 will trigger this circuits for triggering 20, and make input control circuit 12 produce an output signal, make this mobile phone 8 stop signals output up to source of sound disappearance side.
When this source of sound input microphone 25 (present embodiment is an Adam's apple formula microphone) has the signal input, then this microphone circuit 21 promptly is activated, and make microphone MICl enter mode of operation, when in the PTT pattern, then touch mobile phone 8 actions and output source of sound, if when not using Adam's apple formula microphone, and when using earphone 9, then this earphone 9 switches to built-in loud speaker 90.
The above is preferred embodiment of the present utility model only, is not to be used to limit protection range of the present utility model.
Claims (3)
1, a kind of intercom acoustic control telephone transmitter links to each other with a mobile phone, can be applicable to push call mode and voice control call mode, it is characterized in that comprising at least:
One phonetic entry microphone for the speech sound signal input;
One mode selector switch, be provided with an electric crystal, can be for the voltage cut-out and the control circuit that switch to this electric crystal output with controlling;
One with the be coupled source of sound signal coupling circuit of controlling signal output of speech sound signal, connect with this source of sound input Mike wind facies, the output of this source of sound signal coupling circuit then is electrically connected with an end of a speech controling switch, and the other end of this control switch then is electrically connected with microphone circuit;
One source of sound signal input circuit connects mutually with the output of this source of sound signal coupling circuit, and the other end of this source of sound signal input circuit is electrically connected with an end of this source of sound signal coupling circuit and these circuits for triggering;
One source of sound countdown circuit, an end is electrically connected with an end of this source of sound input circuit and this output signal control circuit;
One push switch control circuit, the input of this push switch control circuit is electrically connected with this source of sound countdown circuit and this control switch respectively, the output of this push switch control circuit is electrically connected with the input of this input control circuit, and the output of this input control circuit is electrically connected with the input control end of this mode selector switch;
One source of sound countdown circuit connects with an end of push switch control circuit, and the other end connects mutually with this source of sound signal input circuit and this source of sound signal coupling circuit;
One output signal control circuit is electrically connected with this source of sound countdown circuit and this source of sound signal input circuit respectively;
One circuits for triggering, input are electrically connected with this source of sound signal input circuit and this source of sound signal coupling circuit respectively;
One microphone circuit, an end is electrically connected with an end of this control switch and this mode selector switch;
This mobile phone is electrically connected with an end of this push switch control circuit, this source of sound countdown circuit and this control switch.
2, intercom acoustic control telephone transmitter as claimed in claim 1 is characterized in that: can import the switch of connecting between the microphone with source of sound at the base terminal of this source of sound signal coupling circuit.
3, intercom acoustic control telephone transmitter as claimed in claim 1, it is characterized in that: this microphone also can be the earphone that has loud speaker in.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00254108 CN2449436Y (en) | 2000-09-28 | 2000-09-28 | Sound controlled microphone for intercom |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00254108 CN2449436Y (en) | 2000-09-28 | 2000-09-28 | Sound controlled microphone for intercom |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2449436Y true CN2449436Y (en) | 2001-09-19 |
Family
ID=33611441
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00254108 Expired - Fee Related CN2449436Y (en) | 2000-09-28 | 2000-09-28 | Sound controlled microphone for intercom |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2449436Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102881287A (en) * | 2012-09-20 | 2013-01-16 | 熊猫电子集团有限公司 | Voice triggering method and circuit |
-
2000
- 2000-09-28 CN CN 00254108 patent/CN2449436Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102881287A (en) * | 2012-09-20 | 2013-01-16 | 熊猫电子集团有限公司 | Voice triggering method and circuit |
| CN102881287B (en) * | 2012-09-20 | 2014-12-17 | 熊猫电子集团有限公司 | Voice triggering method and circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |