JP3134065U - Portable Bluetooth voice expansion device - Google Patents

Abstract

A portable Bluetooth audio expansion device is provided.
A Bluetooth module performs wireless communication with a Bluetooth communication device and transmits a sound source signal. The sound source switching module is connected to the Bluetooth module and receives a sound source signal. The speaker is connected to the sound source switching module. The cord storage unit is provided with a cord tank, a cord reel, a communication cord, and a spiral spring, and the cord reel and the spiral spring are movably installed in the cord tank. The communication cord is wound around the cord reel, and the communication cord is stretched or wound by the action of a spiral spring. One end of the communication cord is connected to the sound source switching module, and the other end is connected to the earphone. The determination unit is connected to the sound source switching module and the cord storage unit, and the determination unit transmits a determination signal and provides it to the sound source switching module based on stretching or winding of the communication code, and controls switching of the sound source signal.
[Selection] Figure 6B

Description

  The present invention relates to a kind of portable Bluetooth audio expansion device. In particular, the present invention relates to a portable Bluetooth voice expansion device that can perform wireless communication with a kind of Bluetooth mobile phone terminal and has a function of voice expansion type hands-free call and wired earphone type hands-free call.

  Bluetooth is a short-range wireless communication technology with low cost and low power consumption, and is widely applied to all personal mobile communication facilities. The Bluetooth technology uses a wireless transmission function and can be used to design a communication device installed on a finger, such as a Bluetooth earphone, a mobile phone terminal, a wristwatch, or directly. These products can be wirelessly transmitted simply by incorporating a Bluetooth chip, and can provide an Internet connection and an e-mail transmission / reception function.

  There are many types of Bluetooth soar horns on the market, but many are used in correspondence with Bluetooth mobile phone terminals. The user can wear a Bluetooth soar horn and perform two-way communication with a Bluetooth mobile phone terminal at a standard frequency. Anytime, anywhere, the user can use the Bluetooth technology wireless transmission function to receive a call hands-free.

  As shown in FIG. 1, which is a communication structure diagram of a known Bluetooth wireless horn and a Bluetooth mobile phone terminal, in the known Bluetooth communication structure, the incoming voice information 50 of the Bluetooth mobile phone terminal 60 is wirelessly transmitted to the Bluetooth wireless horn 40 by the Bluetooth communication technology. Is done. The Bluetooth soar horn 40 wirelessly transmits the audio information 52 to be transmitted to the Bluetooth mobile phone terminal 60 by Bluetooth communication technology, and performs bidirectional audio transmission. Thus, the user can achieve the effect of a hands-free mobile phone terminal when receiving a call at various places.

  As shown in FIG. 2, which corresponds to FIG. 1 and is a block diagram of a known Bluetooth wireless horn internal circuit, at the time of an incoming call, the wireless communication unit 401 in the Bluetooth wireless horn 40 is transmitted from a remote Bluetooth mobile phone terminal 60. Incoming incoming voice information 50 is received and transmitted to the controller 402 for processing. Through the processing of the controller 402, the audio information 50 is transmitted by the earphone 404, and the user can hear it clearly.

  At the same time, the user transmits the response voice information 52 to the controller 402 through the microphone 403, and the response voice information 52 is processed by the controller 402 and then transmitted to the wireless communication unit 401. In 401, the voice information 52 of the response is sent to the distant Bluetooth mobile phone terminal 60 to complete two-way voice transmission. Thus, the user can achieve the effect of a hands-free mobile phone terminal when receiving calls at various places.

However, wearing the Bluetooth sour horn 40 for a long time causes ear pain and uncomfortable feeling.
Further, when there is an incoming call, the Bluetooth soar horn 40 can allow only one user to receive a call, and a third party or a large number of people cannot participate in the call. This greatly reduces call quality and call needs in daily life or work.

Therefore, a portable Bluetooth voice expansion device capable of wireless communication with the Bluetooth mobile phone terminal 60 is designed to meet the long-term needs of users of the Bluetooth earphone 40. At the same time, the earphone with confidentiality of the call is integrated into the portable Bluetooth voice expansion device to further improve the quality of the call and ensure the privacy of the call. You can choose.
A conventional Bluetooth soy horn and a Bluetooth mobile phone terminal are described in Patent Document 1.
JP 2007-104122 A

  SUMMARY OF THE INVENTION An object of the present invention is to provide a portable Bluetooth voice expansion device that can perform wireless communication with a Bluetooth communication device and includes two types of voice communication handsfree and earphone handsfree.

In order to solve the above problems, the present invention provides the following portable Bluetooth audio expansion device.
The portable Bluetooth audio expansion device of the present invention includes at least a Bluetooth module, a microphone, a sound source switching module, a speaker, a cord storage unit, an earphone, and a determination unit. The Bluetooth module receives a wireless signal from the Bluetooth communication device by wireless transmission technology. Obtaining and sending a sound source signal, the microphone is connected to the Bluetooth module, the sound source switching module is connected to the Bluetooth module, the sound source signal is received, and the speaker is connected to the sound source switching module; The cord storage unit is provided with a cord tank, a cord reel, a communication cord, and a spiral spring, the cord reel and the spiral spring are movably installed in the cord tank, and the communication cord is wound around the cord reel. And the communication cord is the spiral spring The communication cord has one end connected to the sound source switching module, the earphone is connected to the opposite end of the communication cord, and the judgment unit is connected to the sound source switching module and the cord storage. The determination unit is connected to the unit, and the determination unit transmits a determination signal to the sound source switching module based on the extension or winding of the communication code, thereby controlling the switching of the sound source signal, and the present invention uses a speaker. The Bluetooth communication device transmits a sound source signal, and thus a large number of people can hear clearly, achieves a voice expansion hands-free effect, and the present invention is also extended to a cord storage unit and connected to an earphone Makes a call using the earphone, improves the privacy of the call, -Achieve the effect, thus the user can use the present invention to achieve the function and effect of three-party or multi-party call, improve the quality of call in daily life or work, and meet the call needs, In addition, a portable Bluetooth voice expansion device that can achieve call privacy and is not affected by others during a call is provided.

As described above, the portable Bluetooth audio expansion device of the present invention provides two types of communication methods, audio expansion hands-free and earphone hands-free, and the ear pain and discomfort caused by the user wearing the Bluetooth earphone for a long time. Pleasure can be improved.
At the same time, it is possible to improve the disadvantage that only one Bluetooth soar horn can receive and talk, and a third party or many people cannot participate in the call. Therefore, the present invention can provide tremendous help and convenience to people's life or work call quality and call needs.
At the same time, considering the fact that privacy is easily exposed in multi-party calls, an earphone equipped with a privacy function for calls is integrated into the portable Bluetooth audio expansion device of the present invention, further improving the quality of calls and making calls. Thus, the user can select a suitable calling method according to the content of the call.

In order to explain the features and technical contents of the present invention, the following detailed description and drawings of the present invention will be used. The figures are for reference and explanation only and do not limit the invention.
As shown in FIG. 3 which is a communication instruction diagram of the present invention, the portable Bluetooth audio expansion device 1 of the present invention is provided with a clip 18 which can be placed and fixed between worn clothes or goods, and the Bluetooth communication device 2 Wireless communication. The Bluetooth communication device 2 is a Bluetooth mobile phone terminal.
When the Bluetooth communication device 2 receives an incoming call, the wireless signal S1 is transmitted to the Bluetooth voice expansion device 1 of the present invention. The Bluetooth voice expansion device 1 of the present invention provides a voice expansion hands-free call system using the speaker 10 and the microphone 13 after processing the radio signal S1, or makes the expanded earphone 12 and the microphone 13 correspond to each other, and the earphone handsfree. Provide a calling method.

A communication instruction diagram of another embodiment of the present invention is shown in FIG. In FIG. 4, the difference between the portable Bluetooth audio expansion device 1 ′ of the present invention and the Bluetooth audio expansion device 1 shown in FIG. 3 is in its structure.
The portable Bluetooth audio expansion device 1 ′ includes an audio expansion main body A, an earphone main body B, and a pivot base C. The pivot base C is installed at one end of the audio extension body A. The earphone main body B is mounted on the pivot base C, and the earpiece main body B can be rotated and brought into close contact with the voice expansion main body A by the pivot base C. In this way, a foldable portable Bluetooth audio expansion device 1 ′ is formed. The pivot base C includes a flexible printed circuit board (not shown) that provides electrical connection between the audio extension body A and the earphone body B.

In addition, the foldable portable Bluetooth audio expansion device 1 ′ can be installed in a garment or article worn by the user due to its folding characteristics, and can provide stability and balance of the installation. .
When the Bluetooth communication device 2 receives an incoming call, the wireless signal S1 is transmitted to the Bluetooth audio expansion device 1 ′ of the present invention. The Bluetooth audio expansion device 1 ′ of the present invention processes the wireless signal S1, and then the speaker 10 and the microphone 13 are processed. Thus, it is possible to provide a voice extended hands-free call system, or to make the expanded earphone 12 and the microphone 13 correspond to each other to provide an earphone hands-free call system.

  Corresponding to FIG. 3, as shown in FIG. 5, which is an instruction diagram of the first embodiment of the operating environment of the present invention, the user 3 wears the portable Bluetooth audio expansion device 1 and the Bluetooth communication device 2 of the present invention. The communication connection status can be set. When the Bluetooth communication device 2 receives an incoming call, the user 3 makes a call by the direct voice extended hands-free call system through the portable Bluetooth voice expansion device 1 of the present invention. In addition, if the user 3 does not want the other person to know the contents of the call, the user 3 makes a call using the earphone hands-free call method through the earphone 12 that is directly stretched and installed in the portable Bluetooth audio expansion device 1. Can do. In this way, the privacy of the call is achieved, and it is not affected by others during the call.

  Further, as shown in FIG. 6A, which is an instruction diagram of the second embodiment of the operation environment of the present invention, the driver wears the Bluetooth voice expansion device 1 of the present invention, and when the Bluetooth communication device 2 receives an incoming call, the voice expansion hands Calls can be made through a free call system, and functions and effects of calls with three or more people can be achieved.

  Further, as shown in FIG. 6B, which is an instruction diagram of the third embodiment of the operation environment of the present invention, the driver wears the Bluetooth voice expansion device 1 of the present invention, and when the Bluetooth communication device 2 receives an incoming call, the earphone hands-free call is performed. Calls can be made through the system, and the privacy of the call can be protected. In this way, the present invention can improve the quality of calls and needs in daily life or work.

As shown in FIG. 7 corresponding to FIG. 3, which is a block diagram of the circuit of the present invention, the Bluetooth audio expansion device 1 of the present invention includes a Bluetooth module 11, a microphone 13, a sound source switching module 14, a speaker 10, a cord storage unit 16, An earphone 12 and a determination unit 15 are included.
The Bluetooth module 11 acquires a radio signal S1 from the Bluetooth communication apparatus 2 by a radio transmission technique, processes the radio signal S1, and sends a sound source signal S2.

The sound source switching module 14 is connected to the Bluetooth module 11 and the determination unit 15, receives the sound source signal S2, and further switches the sound source signal S2 transmission route under the control of the determination unit 15. In addition, the sound source switching module 14 is further connected to the speaker 10 and the cord storage unit 16. Among them, the speaker 10 provides an audio extension function.
The cord storage unit 16 is connected to the earphone 12, whereby the earphone 12 is stretched and wound up in the cord storage unit 16.

  The determination unit 15 transmits a high potential or low potential determination signal S3 to the sound source switching module 14 based on the extension or winding of the earphone 12 in the cord storage unit 16, and switches the sound source signal S2 transmission route. And thus transmitted to the speaker 10 or the earphone 12.

The low-potential judgment signal S3 controls the sound source switching module 14, transmits the sound source signal S2 to the speaker 10, achieves voice extension output by the speaker 10, and corresponds to the microphone 13 of the Bluetooth module 11. Can achieve the purpose of the call.
The determination signal S3 of high potential controls the sound source switching module 14, transmits the sound source signal S2 to the earphone 12, and corresponds to the microphone 13 of the Bluetooth module 11, thereby achieving the purpose of the private call. .

  The method of controlling the switching of the audio signal transmission route by the determination signal S3 using the high potential or the low potential is only an embodiment of the present invention. If another method is used, a function similar to that of the present embodiment is used. If the effect can be achieved, it belongs to the spirit of the present embodiment.

As shown in FIG. 7, the portable Bluetooth audio expansion device 1 of the present invention further includes a function button unit 17.
The function button unit 17 is connected to the Bluetooth module 11, provides a control command S4 to the Bluetooth module 11, and controls the output volume of the speaker 10 or the earphone 12.

As shown in FIG. 8, which is an instruction diagram of the cord storage unit mechanism according to the present invention, the cord storage unit 16 according to the present invention includes a cord tank 160, a cord reel 162, a communication cord 164, and a spiral spring 166. .
The cord reel 162 and the spiral spring 166 are movably installed in the cord tank 160, and the communication cord 164 is wound on the rotatable cord reel 162. The communication cord 164 receives the rolling action of the spiral spring 166 and the cord reel 162, and is stretched or wound. Moreover, one end of the communication cord 164 is connected to the sound source switching module 14 and the other end is connected to the earphone 12.

7 and 8, the determination unit 15 includes a hook switch SW1, as shown in FIG. 9 which is a circuit instruction diagram of the determination unit and the sound source switching module of the present invention.
One end of the hook switch SW1 is connected to the high potential signal source VBAT, and the other end is connected to the low potential signal source G and the sound source switching module 14 through the electric resistance R1. The hook switch SW1 switches the switch SW1 based on the stretching or winding of the communication cord 164, and thus provides the high-potential or low-potential determination signal S3 to the sound source switching module 14 to switch the sound source signal S2. Control transmission.

  When the Bluetooth communication device 2 receives an incoming call, the wireless signal S1 is transmitted to the portable Bluetooth audio expansion device 1 of the present invention. After the wireless signal S1 is processed in the portable Bluetooth audio expansion device 1 of the present invention, a sound source signal S2 is generated. send.

  When the user selects a voice extension hands-free call, the cord storage unit 16 is wound and the hook switch SW1 is opened (OFF). At this time, the low-potential signal source G provides a low-potential determination signal S3 and transmits it to the sound source switching module 14 through the electric resistance R1 to operate the control chip U1. As a result, the sound source signal S2 passes through the capacitor L1 and is further sent to the speaker 10 through the control chip U1 to perform voice expansion. The model number NLASB3157 can be used as the control chip U1.

  On the other hand, when the user selects the earphone hands-free call, the cord storage unit 16 is stretched and the hook switch SW1 is closed (ON). At this time, the high potential signal source VBAT provides a high potential determination signal S3 and transmits it to the sound source switching module 14 to operate the control chip U2. As a result, the sound source signal S2 is sent to the earphone 12 via the capacitor L2 and further through the control chip U2, and a telephone call with privacy maintained can be performed. Among them, the model number NLASB3157 can be used as the control chip U2.

  As described above, the portable Bluetooth audio expansion device 1 of the present invention provides two types of communication methods, audio expansion hands-free and earphone hands-free, and the ear pain caused by the user wearing the Bluetooth earphone for a long time. Discomfort can be improved. At the same time, it is possible to improve the disadvantage that only one Bluetooth soar horn can receive and talk, and a third party or many people cannot participate in the call. Therefore, the present invention can provide tremendous help and convenience to people's life or work call quality and call needs.

  At the same time, considering the fact that privacy is easily exposed in calls with a large number of people, an earphone equipped with a privacy function for calls is integrated into the portable Bluetooth audio expansion device 1 of the present invention to further improve the quality of calls, The privacy of the call is increased, and thus the user can select a call method suitable for the content of the call.

Since the present invention fully meets the inventive step inventive step requirements, an application is filed under the Patent Law.
The above is only the most specific embodiment of the present invention, and the features of the present invention are not limited thereto. Changes or modifications that can be easily made by those skilled in the art within the scope of the present invention are also included in the claims of the present invention.

It is a communication structure figure of a well-known Bluetooth soar horn and a Bluetooth mobile phone terminal. It is a block diagram of a well-known bluetooth horn internal circuit. It is a communication instruction diagram of the present invention. It is another type of communication instruction diagram of the present invention. It is a first embodiment instruction diagram of the operating environment of the present invention. It is a second embodiment instruction diagram of the operating environment of the present invention. It is a third embodiment instruction diagram of the operating environment of the present invention. It is a block diagram of a circuit of the present invention. It is a cord storage unit mechanism instruction diagram of the present invention. It is a circuit instruction diagram of the judgment unit and the sound source switching module of the present invention.

Explanation of symbols

40 Bluetooth earphone 401 Wireless communication unit 402 Controller 403 Microphone 404 Earphone 50, 52 Audio information 60 Bluetooth mobile phone terminal 1, 1 'Portable Bluetooth audio expansion device 10 Speaker 11 Bluetooth module 12 Earphone 13 Microphone 14 Sound source switching module 15 Determination unit 16 Cord storage unit 160 Cord tank 162 Code reel 164 Communication cord 166 Spiral spring 17 Function button unit 18 Clip 2 Bluetooth communication device SW1 Hook switch VBAT High potential signal source R1 Electrical resistance G Low potential signal source S1 Radio signal S2 Sound source signal S3 Determination Signal S4 Control command 3 User A Voice extension body B Earphone body C Pivot base U1, U2 Control chip

Claims (9)

A portable Bluetooth audio expansion device capable of performing wireless communication with at least a Bluetooth communication device,
It includes a Bluetooth module, a sound source switching module, a speaker, a cord storage unit, an earphone, and a judgment unit.
The Bluetooth module acquires a wireless signal from the Bluetooth communication device by wireless transmission technology and sends a sound source signal,
The sound source switching module is connected to the Bluetooth module and receives the sound source signal,
The speaker is connected to the sound source switching module,
The cord storage unit includes a communication cord that is stretched or wound, a cord tank, a cord reel, and a spiral spring, and the cord reel and the spiral spring are movably installed in the cord tank, and the communication cord is Wound around the cord reel,
The earphone is connected to the opposite end of the communication cord,
The determination unit has a hook switch, one end of the hook switch is connected to a high potential signal source, the other end is connected to a low potential signal source and the sound source switching module, and the hook switch is used to extend the communication cord or A portable Bluetooth audio expansion device, wherein switching is performed based on winding, thereby providing a judgment signal of high potential or low potential to the sound source switching module.   The portable Bluetooth audio expansion device according to claim 1, further comprising a function button unit, wherein the function button unit is connected to the Bluetooth module and provides a control command to the Bluetooth module.   The portable Bluetooth audio expansion device according to claim 2, wherein the control command is used for volume control of the speaker and the earphone.   The portable Bluetooth audio expansion device according to claim 1, further comprising a microphone, wherein the microphone is connected to the Bluetooth module.   The portable Bluetooth audio expansion device according to claim 1, further comprising a clip. A portable Bluetooth audio expansion device capable of performing wireless communication with at least a Bluetooth communication device,
It has a voice extension body,
The audio extension body has a Bluetooth module, a sound source switching module, a speaker, a pivot base, and an earphone body.
The Bluetooth module acquires a wireless signal from the Bluetooth communication device by wireless transmission technology and sends a sound source signal,
The sound source switching module is connected to the Bluetooth module to receive the sound source signal,
The speaker is connected to the sound source switching module,
The pivot base is connected to one end of the audio extension body, the pivot base having a flexible printed circuit board;
The earphone main body is connected to the pivot base, and is in close rotating contact with the audio extension main body. The earphone main body includes a cord storage unit and a determination unit.
The cord storage unit includes a communication cord that is stretched or wound, a cord tank, a cord reel, and a spiral spring, and the cord reel and the spiral spring are movably installed in the cord tank, and the communication cord is Wound around the cord reel,
The determination unit has a hook switch, one end of the hook switch is connected to a high potential signal source, the other end is connected to a low potential signal source and the sound source switching module, and the hook switch is used to extend the communication cord. A portable Bluetooth audio expansion device, wherein switching is performed based on winding, thereby providing a judgment signal of high potential or low potential to the sound source switching module.   7. The portable Bluetooth audio expansion device according to claim 6, further comprising a function button unit, wherein the function button unit is connected to the Bluetooth module and provides a control command to the Bluetooth module.   The portable Bluetooth audio expansion device according to claim 7, wherein the control command is used to control the volume of the speaker and the earphone main body.   The portable Bluetooth audio expansion device according to claim 6, further comprising a microphone, wherein the microphone is connected to the Bluetooth module.

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