CN101330682A - Walkie-talkie ear microphone with autoexcitation function - Google Patents
Walkie-talkie ear microphone with autoexcitation function Download PDFInfo
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- CN101330682A CN101330682A CNA2008100484485A CN200810048448A CN101330682A CN 101330682 A CN101330682 A CN 101330682A CN A2008100484485 A CNA2008100484485 A CN A2008100484485A CN 200810048448 A CN200810048448 A CN 200810048448A CN 101330682 A CN101330682 A CN 101330682A
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Abstract
The invention relates to an interphone earphone with the self-excitation function, which comprises a receiver, a transmitter, an interphone interface and a self-excitation control circuit, wherein the self-excitation control circuit comprises a transmitter linear detector for detecting output signals of the transmitter, a voltage comparer for comparing the signals detected by the transmitter linear detector with a threshold and transmitting an excitation trigger signal, a retriggerable delay for receiving the excitation trigger signal and controlling a transmitter switch of the interphone, and a talk switch interface connected with the output terminal of the retriggerable delay. The interphone earphone with the self-excitation function can achieve self-excitation to control a talk switch without pressing the talk switch of the interphone. The retriggerable delay can automatically transmit a talk switch signal of the interphone when the user starts to talk, and automatically shut off the talk switch signal in a time period (such as 0.5 second) set after stopping talking, thereby achieving continuous voice communication without influencing normal work of the user.
Description
Technical field
The present invention relates to communication device, be specifically related to and the matching used communication device of intercom, particularly intercom headset.
Background technology
As everyone knows, intercom must be pressed talk-listen switch (ptt switch) when realizing conversation, converse but can't free hand to press ptt switch, as the fireman of soaring plane driver, rescue, the reception counter of hotel waiter who is settling accounts etc. a lot of occasion users.Converse if desired, their work at hand of can only stopping is danger close but stop work sometimes.
Summary of the invention
Technical problem to be solved by this invention is: a kind of intercom headset with autoexcitation function is provided, and this intercom headset is spoken the user, can autoexcitation control talk-listen switch.
The present invention solves the problems of the technologies described above the technical scheme that is adopted:
Intercom headset with autoexcitation function, it comprises receiver, transmitter, intercom interface, the intercom interface comprises receiver interface, transmitter interface, talk-listen switch interface; Receiver is connected with the receiver interface, and transmitter is connected with the transmitter interface;
The intercom headset also comprises autoexcitation formula control circuit, and autoexcitation formula control circuit comprises:
Be used to search the transmitter output signal the transmitter linear detector,
Signal that the transmitter linear detector is searched and threshold values relatively and send the excitation triggering signal voltage comparator,
Receive the excitation triggering signal and control the intercom talk-listen switch weighed trigger delayer,
The output that can weigh trigger delayer is connected with the talk-listen switch interface.
In the such scheme, autoexcitation formula control circuit also comprises:
Be used to search the receiver input signal the receiver linear detector,
Signal that acquisition receiver linear detector is searched and the electronic switch of controlling voltage comparator;
In the such scheme, the intercom headset also comprises preamplifier, signal buffer, and transmitter is connected with the transmitter interface by preamplifier, signal buffer successively.
In the such scheme, transmitter is the osteoacusis transmitter.
In the such scheme, the intercom headset also comprises the earmuff body, and the earmuff body comprises earmuff body case, ring protection pad, and the earmuff body case is connected with the ring protection pad; Receiver is arranged in the earmuff body case, and the osteoacusis transmitter is embedded in the neonychium.
In the such scheme, the intercom headset also comprises strip shell, hook, and hook is connected with the strip shell; Be provided with receiver, osteoacusis transmitter in the strip shell; Hook is connected with the upper end of strip shell, the top that is arranged on the strip shell of receiver, and the osteoacusis transmitter is arranged on the bottom of strip shell.
In the such scheme, the osteoacusis transmitter is arranged on the strip outer casing inner wall of receiver the same side.
In the such scheme, the osteoacusis transmitter comprises piezoelectric ceramic, metal shell, and piezoelectric ceramic is fixedly installed in the metal shell; The positive and negative electrode of piezoelectric ceramic is the output of osteoacusis transmitter.
The operation principle that the present invention has the intercom headset of autoexcitation function is:
When the user speaks, the transmitter linear detector is searched the transmitter output signal, and with the signal input voltage comparator, the threshold values that signal that voltage comparator is searched the transmitter linear detector and voltage comparator are set relatively, during threshold values that the signal of searching when the transmitter linear detector is set greater than voltage comparator, voltage comparator sends the excitation triggering signal, can weigh trigger delayer and receive the excitation triggering signal that voltage comparator sends, can weigh the talk-listen switch (ptt switch) of the output of trigger delayer by intercom talk-listen switch interface control intercom.Make the user need not to press the intercom talk-listen switch, just can autoexcitation control talk-listen switch.Can weigh trigger delayer when the user begins to pronounce to speak, can weigh that trigger delayer is triggered and can be repeated and trigger, can send intercom talk-listen switch signal automatically, automatically close the talk-listen switch signal after the time of setting in the back that pipes down (as 0.5 second), thus the continuous speech communication when realizing not influencing user's operate as normal.
Being also advantageous in that of intercom headset of the present invention:
1, autoexcitation formula control circuit also comprises: receiver linear detector, electronic switch; The receiver linear detector is used to search the voice signal of receiver; Electronic switch receive the receiver linear detector search the signal of receiver after the control voltage comparator close autoexcitation and seize, guarantee the complete voice of listening to of intercom headset.
2, the intercom headset also comprises preamplifier, signal buffer, is used to amplify the signal of transmitter, and signal and intercom that signal buffer is used for amplifying mate.
3, transmitter is the osteoacusis transmitter, and the osteoacusis transmitter can pick up people's vibrations that bone produces when speaking, and converts vibration signal to signal of telecommunication output, makes the intercom headset in the environment of noisy environment and strong wind, also can have good speech quality; Also make simultaneously the intercom headset in noisy environment, can not produce the mistake excitation.
4, the intercom headset also comprises the earmuff body, and the earmuff body comprises earmuff body case, ring protection pad, and receiver is arranged in the earmuff body case, and the osteoacusis transmitter is embedded in the neonychium.After the wearer puts on earmuff, the osteoacusis transmitter is pressed close to skeleton, can extract people's vibrations that bone produces when speaking, and convert vibration signal to the signal of telecommunication and export by communication device, receiver is with the signal output of communication device input, make earmuff when reducing outside noise, can keep in communication with the external world.
5, the intercom headset also comprises strip shell, hook, during use, the hook of intercom headset is hung on the ear, and the bottom of shell falls naturally and is close to wearer's face, and the osteoacusis transmitter can pick up people's vibrations that bone produces when speaking exactly.
6, transmitter is arranged on the outer casing inner wall of receiver the same side, makes the osteoacusis transmitter be close to wearer's face, pick up the people when speaking bone produce the highly sensitive of vibrations.
7, the piezoelectric ceramic of osteoacusis transmitter is fixedly installed in the metal shell, and the metal shell rigidity is better, can effectively suppress " conductance " and can increase " bone conduction " and sensitivity, has improved the sending speech quality of osteoacusis transmitter.
Description of drawings
Fig. 1 is the theory diagram of intercom headset embodiment 1 of the present invention
Fig. 2 is the circuit theory diagrams of intercom headset embodiment 1 of the present invention
Fig. 3 is the outside drawing of intercom headset embodiment 1 of the present invention
Fig. 4 is the structural representation of earmuff body
Fig. 5 is the structural representation of osteoacusis transmitter
Fig. 6 is the outside drawing of intercom headset embodiment 2 of the present invention
Fig. 7 is the A-A cutaway view of Fig. 6
Among the figure, 1-osteoacusis transmitter, 2-ring protection pad, 3-earmuff body case, 4-receiver, 5-autoexcitation formula control circuit, 6-earmuff circle, 7-metal shell, 8-piezoelectric ceramic, 9-earmuff body, 10-connecting rod, 11-lead, 12-strip shell, 13-hook.
Embodiment
Intercom headset embodiment 1 of the present invention as shown in Figure 1, 2, it comprises receiver, transmitter, intercom interface, autoexcitation formula control circuit, preamplifier, signal buffer.The intercom interface comprises receiver interface, transmitter interface, talk-listen switch (PTT signal) interface; Receiver is connected with the receiver interface, and transmitter is connected with the transmitter interface; Transmitter is connected with the transmitter interface by preamplifier, signal buffer successively.Transmitter is the osteoacusis transmitter.
Autoexcitation formula control circuit comprises:
Be used to search the transmitter output signal the transmitter linear detector,
Signal that the transmitter linear detector is searched and threshold values relatively and send the excitation triggering signal voltage comparator,
Receive the excitation triggering signal and control the intercom talk-listen switch weighed trigger delayer,
Be used to search the receiver input signal the receiver linear detector,
Signal that acquisition receiver linear detector is searched and the electronic switch of controlling voltage comparator;
The output that can weigh trigger delayer is connected with the talk-listen switch interface.
Can form by 555 time-base circuits and peripheral circuit by heavy trigger delayer, guarantee the continuity of speech communication; The output of 555 time-base circuits (discharge pin, promptly discharge end constitutes electronic switch) is realized the PTT control signal, thereby has avoided the electric spark because of adopting mechanical relay to produce, and the volume of the controller that reduces.
The outside drawing of intercom headset embodiment 1 of the present invention as shown in Figure 3, it comprises between 9, two earmuff bodies 9 of two earmuff bodies and connecting by flexible connecting rod 10.Earmuff body 9 comprises shell 3, ring protection pad 2, and shell 3 is connected with ring protection pad 2.
As shown in Figure 4, be provided with earmuff circle 6 between earmuff body case 3 and the ring protection pad 2, a side of earmuff circle 6 is fixedlyed connected with earmuff body case 3, and the opposite side of earmuff circle 6 is connected with ring protection pad 2.Be provided with receiver 4, autoexcitation formula control circuit 5 in the earmuff body case 3 of one of them earmuff body 9, ring protection pad 2 is embedded with osteoacusis transmitter 1.
As shown in Figure 5, the osteoacusis transmitter comprises the aluminum metal shell 7 of piezoelectric ceramic 8, sealing, and piezoelectric ceramic 8 is fixedly installed in the metal shell 7; The positive and negative electrode of piezoelectric ceramic 8 is the output of osteoacusis transmitter 1, and output is by lead 11 outputs.The negative pole of piezoelectric ceramic 8 (metal covering) is connected with the negative pole of output by metal shell 7, and the positive pole of piezoelectric ceramic 8 (ceramic plane) is connected with output head anode.
Intercom headset embodiment 2 of the present invention, its theory diagram and circuit theory diagrams be with embodiment 1, and the outside drawing of intercom headset embodiment 2 of the present invention as shown in Figure 3, intercom headset comprise strip shell 12, hook 13, and hook 13 is connected with strip shell 12; Be provided with receiver 4, osteoacusis transmitter 1 in the strip shell 12; Hook 13 is connected with the upper end of strip shell 12, and receiver 4 is arranged on the top of strip shell 12, and osteoacusis transmitter 1 is arranged on the bottom of strip shell 12.Osteoacusis transmitter 1 is arranged on strip shell 12 inwalls of receiver 4 the same sides.
Claims (8)
1, the intercom headset that has autoexcitation function, it comprises receiver, transmitter, intercom interface, the intercom interface comprises receiver interface, transmitter interface, talk-listen switch interface; Receiver is connected with the receiver interface, and transmitter is connected with the transmitter interface;
It is characterized in that:
It also comprises autoexcitation formula control circuit, and autoexcitation formula control circuit comprises:
Be used to search the transmitter output signal the transmitter linear detector,
Signal that the transmitter linear detector is searched and threshold values relatively and send the excitation triggering signal voltage comparator,
Receive the excitation triggering signal and control the intercom talk-listen switch weighed trigger delayer,
The output that can weigh trigger delayer is connected with the talk-listen switch interface.
2, intercom headset as claimed in claim 1 is characterized in that: autoexcitation formula control circuit also comprises:
Be used to search the receiver input signal the receiver linear detector,
Signal that acquisition receiver linear detector is searched and the electronic switch of controlling voltage comparator;
3, intercom headset as claimed in claim 1, it is characterized in that: it also comprises preamplifier, signal buffer, transmitter is connected with the transmitter interface by preamplifier, signal buffer successively.
4, intercom headset as claimed in claim 1 is characterized in that: transmitter is osteoacusis transmitter (1).
5, intercom headset as claimed in claim 4 is characterized in that: it also comprises earmuff body (9), and earmuff body (9) comprises earmuff body case (3), ring protection pad (2), and earmuff body case (3) is connected with ring protection pad (2); Receiver (4) is arranged in the earmuff body case (3), and osteoacusis transmitter (1) is embedded in the neonychium (2).
6, intercom headset as claimed in claim 4 is characterized in that: it also comprises strip shell (12), hook (13), and hook (13) is connected with strip shell (12); Be provided with receiver (4), osteoacusis transmitter (1) in the strip shell (15); Hook (13) is connected with the upper end of strip shell (12), and (4) of receiver are arranged on the top of strip shell (12), and osteoacusis transmitter (1) is arranged on the bottom of strip shell (12).
7, headset as claimed in claim 6 is characterized in that: osteoacusis transmitter (1) is arranged on strip shell (12) inwall of receiver (4) the same side.
8, earmuff as claimed in claim 4 is characterized in that: osteoacusis transmitter (1) comprises piezoelectric ceramic (8), metal shell (7), and piezoelectric ceramic (8) is fixedly installed in the metal shell (7); The positive and negative electrode of piezoelectric ceramic (8) is the output of osteoacusis transmitter (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100484485A CN101330682B (en) | 2008-07-18 | 2008-07-18 | Walkie-talkie ear microphone with autoexcitation function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100484485A CN101330682B (en) | 2008-07-18 | 2008-07-18 | Walkie-talkie ear microphone with autoexcitation function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101330682A true CN101330682A (en) | 2008-12-24 |
| CN101330682B CN101330682B (en) | 2011-11-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100484485A Expired - Fee Related CN101330682B (en) | 2008-07-18 | 2008-07-18 | Walkie-talkie ear microphone with autoexcitation function |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102143437A (en) * | 2011-01-21 | 2011-08-03 | 珠海市金海来科技有限公司 | Voice communication controller and communication system for positive pressure air breather |
| CN102881287A (en) * | 2012-09-20 | 2013-01-16 | 熊猫电子集团有限公司 | Voice triggering method and circuit |
| CN104569152A (en) * | 2014-12-25 | 2015-04-29 | 奥瑞视（北京）科技有限公司 | Ultrasonic detection method and system used for wheels of railway vehicle and based on interface wave correlation detection |
| CN114697814A (en) * | 2022-02-24 | 2022-07-01 | 深圳市佳骏兴科技有限公司 | Bone conduction communication assembly, bone conduction earphone and control method and control device thereof |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000349897A (en) * | 1999-04-29 | 2000-12-15 | Pj Telecomm Co Ltd | Earphone-shaped radio telephone set system |
| CN100426901C (en) * | 2001-12-31 | 2008-10-15 | 中兴通讯股份有限公司 | Earphone and pushbutton detection device and method in mobile communication terminal |
-
2008
- 2008-07-18 CN CN2008100484485A patent/CN101330682B/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102143437A (en) * | 2011-01-21 | 2011-08-03 | 珠海市金海来科技有限公司 | Voice communication controller and communication system for positive pressure air breather |
| 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 |
| CN104569152A (en) * | 2014-12-25 | 2015-04-29 | 奥瑞视（北京）科技有限公司 | Ultrasonic detection method and system used for wheels of railway vehicle and based on interface wave correlation detection |
| CN114697814A (en) * | 2022-02-24 | 2022-07-01 | 深圳市佳骏兴科技有限公司 | Bone conduction communication assembly, bone conduction earphone and control method and control device thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101330682B (en) | 2011-11-16 |
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Granted publication date: 20111116 Termination date: 20150718 |
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