KR20040110714A - Wireless receive-send system using bluetooth - Google Patents

Abstract

PURPOSE: A wireless transceiving system using Bluetooth is provided to conveniently use a headset by easily interfacing a wireless transceiving part with Bluetooth. CONSTITUTION: A plurality of neck microphones(33,34,35) transmit signals of a user to a wireless connecting part(32) through master-slave Bluetooth communication in one transceiving system, or receive signals transmitted from the wireless connecting part(32). A transceiver includes the wireless connecting part(32) receiving the signals from the plurality of neck microphones(33,34,35) or transmitting the inputted signals to the neck microphones(33,34,35), a transceiving part(31) wirelessly transmitting the signals to the other transceiving system or transmitting wireless signals received from the other transceiving system to the wireless connecting part(32), and an interface part for communication between the transceiving part and the wireless connecting part(32).

Description

Wireless transmission and reception system using Bluetooth {WIRELESS RECEIVE-SEND SYSTEM USING BLUETOOTH}

The present invention relates to a wireless transmission and reception system, and more particularly, to configure a communication network using Bluetooth and a neck microphone, and to facilitate the interface between the wireless transceiver and Bluetooth to solve the inconvenience of a wired handset, as well as short-range wireless communication. The present invention relates to a wireless transmission and reception system using Bluetooth.

1 is a view showing the configuration of a conventional military 1: N communication network system.

As shown in Figure 1, in a conventional 1: N network, transceivers typically use the same frequency (or code).

Each of these transceivers forms a vertical and horizontal network according to the network concept and calls the other party to communicate.

Users press and hold the call switch (PTT) to make a call, and when receiving, the call is set by pressing the call switch (PTT).

In the same network, 1 (send): N (receive) communication is performed between users, and the called party answers during a voice call.

As described above, since the conventional transceivers make a voice call using a wired handset, the user uses the same frequency (or code) as the receiver, and transmits the call while pressing the push call switch (ptt) of the wired handset. It uses a half duplex method of hydrating the switch.

However, a wired cable connecting the transceiver and the handset is required for a voice call in a conventional transceiver, and since the communication is performed by the wired cable, there is a problem that there is a space constraint within the cable length range and inconvenience in use. .

The present invention has been proposed to solve the above-mentioned problems, and it is possible to configure the communication network using Bluetooth and the microphone, and to ease the inconvenience of the wired handset by facilitating the interface between the wireless transceiver and Bluetooth, as well as short-range. The present invention relates to a wireless transmission / reception system using Bluetooth that enables wireless communication.

1 is a view showing the configuration of a conventional military 1: N communication network system.

2 is a diagram illustrating a configuration of a 1: N communication network system according to an embodiment of the present invention.

3 is a schematic block diagram showing the configuration of a wireless transmission and reception system according to an embodiment of the present invention.

4A is a schematic perspective view of a transceiver in a wireless transmit / receive system according to an embodiment of the present invention.

4B is a schematic block diagram of a transceiver in a wireless transmit / receive system according to an embodiment of the present invention.

5 is a schematic block diagram of a neck microphone in a wireless transmission / reception system according to an embodiment of the present invention.

<Description of Major Symbols in Drawing>

40: Interface part 41: EEPROM

42: transmitter and receiver 43: master Bluetooth

44: control unit 45: audio in port

46: Audio out port 47: GND port

48: data port 49: Vcc port

In order to achieve the above object, according to an aspect of the present invention,

In the transmission and reception system comprising a transmission and reception system of one side for transmitting a signal, and a plurality of other transmission and reception systems for receiving a signal transmitted from the transmission and reception system of one side, the remote wireless communication,

A plurality of neck microphones for transmitting a user's signal from a microphone to a wireless connection unit or receiving a signal transmitted from the wireless connection unit in a master slave type Bluetooth communication in the transmission / reception system of one side;

A wireless connection unit for receiving a signal from the plurality of neck microphones or transmitting an input signal to the plurality of neck microphones through a master slave method of Bluetooth communication, and transmitting the signal received to the other transmission / reception system as a wireless signal to the other transceiver system. Or a transceiver including a transceiver for transmitting a radio signal received from the other transceiver system to the radio connection unit and an interface unit for communication between the transceiver and the radio connection unit. .

Here, the interface unit may include a data port for synchronously and asynchronously transmitting or receiving data received from the wireless connection unit to the transceiver and inputting a voice signal received from the wireless connection unit to the transceiver unit. An audio in port, an audio out port inputted to the wireless connection unit by the voice signal received from the transceiver, a power supply port, Vcc port, and a ground port may include a GND port.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

2 is a diagram illustrating a configuration of a 1: N communication network system according to an embodiment of the present invention.

As shown in FIG. 2, a wireless transmission / reception system using Bluetooth according to an embodiment of the present invention includes a transmitting / receiving system for transmitting a voice signal and a plurality of receiving / receiving voice signals transmitted from the transmitting / receiving system. It is composed of the receiving side transmitting and receiving system to perform remote wireless communication.

In the present embodiment, the description is based on a voice signal, but a data signal may also be included.

Each of the wireless transmission / reception systems using Bluetooth includes a plurality of neck microphones that transmit and receive a user's voice signal and a transceiver that enables remote radio (RF) communication for voice signals transmitted and received from the plurality of neck microphones. Include.

In this case, communication between the transceiver and the microphone is performed in full duplex, and communication between the transmitter and the receiver, that is, the transceiver, is performed in a half duplex.

Referring to FIG. 2, a transmission / reception system for configuring a vertical and horizontal network according to a network concept and calling a counterpart to view a communication is shown as an example. FIG. 1 illustrates one transmission system and three reception systems. .

Here, transmission and reception are also possible between three systems on the receiving side.

In addition, in one wireless transmission and reception system, one transceiver may include several wireless neck microphones (only three of them may be illustrated in FIG. 2, but more than two may be possible).

In addition, each neck microphone is registered in the transceiver according to a predetermined registration procedure (method).

The transmission and reception of voice signals in a wireless transmission / reception system using Bluetooth according to the present invention will be described with reference to FIG. 2.

First, when a voice signal is transmitted, any one of a plurality of neck microphone users makes a call through the neck microphone in a transmitting wireless transmission / reception system of one side (step 11), and the voice signal transmitted from the neck microphone is wirelessly communicated. Is transmitted to transceiver 1 via (step 12).

Thereafter, the signal transmitted to the transceiver 1 is modulated into a frequency modulation (FM) signal for remote wireless communication in the transceiver 1, and the modulated FM signal is transmitted and received through the antenna of the transmitting and receiving system. Is transmitted to transceiver 3 or transceiver 4 (step 13).

Looking at the receiving process of the transmission signal at the receiving side, receiving the modulated FM signal through each antenna of the receiving side transmitting and receiving system and demodulating the modulated FM signal in the transceiver 2, transceiver 3, transceiver 4 of the receiving side transmitting and receiving system (Step 14).

The demodulated signal is then wirelessly transmitted to each neck microphone (step 15).

The signal transmitted to the neck microphone can be heard by the user through the speaker in the neck microphone (step 16).

The voice signal transmission / reception process in the wireless transmission / reception system using Bluetooth according to the present invention in this manner is divided into a transmission side and a reception system for convenience of technology, and the reception side transmission / reception of the other side in the transmission side transmission / reception system of one side is performed. Although the transmission process to the system is sequentially described, the signal transmission and reception of the transmission / reception system of one side in the transmission / reception system of the other side may be performed in the same process.

Therefore, as shown in FIG. 2, both the transmitting and receiving sides are possible as needed between one transmitting and receiving system and the other transmitting and receiving system, and a plurality of receiving systems can transmit and receive voice signals to and from each other.

In addition, since the neck microphone can be configured in plural, the voice signal transmission through the neck microphone can be made by any one of the users of the neck microphone using a push call switch (PTT), the remaining neck microphone users other than the sender Anyone can hear the transmitted voice signal.

3 is a block diagram schematically illustrating a configuration of a wireless transmission / reception system using Bluetooth according to an embodiment of the present invention.

Referring to FIG. 3, the wireless transmission / reception system using Bluetooth according to an embodiment of the present invention shows that short-range wireless communication between users of three neck microphones # 1 to # 3 is possible in one transceiver.

That is, the three neck microphones transmit a user's voice signal from the microphones 36a, 36b, and 36c to the wireless connector 32 or transmit the signal transmitted from the wireless connector 32 to the speaker 37a, 37b, or the like through Bluetooth communication. Neck microphone section 33, 34, 35 for listening to the voice signal at 37c).

In addition, the neck microphone, a push call switch (PTT switches: 38a, 38b, 38c) to switch to the user's call mode by pressing when the call is made, the user's receiving mode through the release when receiving, and the wireless connection unit 32 It is configured to include a slave Bluetooth antenna 33a, 33b, 33c for Bluetooth communication with).

In addition, the transceiver includes a wireless connection unit 32 for receiving a voice signal from the neck microphone or transmitting an input signal to the neck microphone through Bluetooth communication, and a signal received at the wireless connection unit 32 to the other transceiver system. It is configured to include a transceiver 31 for transmitting a radio signal or the radio signal transmitted from the other transmission and reception system to the wireless connection unit 32.

In addition, the transceiver includes a master Bluetooth antenna 32a for Bluetooth communication with the neck microphone units 33, 34, and 35, and a transceiver antenna 31a for wireless communication between the transceivers.

Here, short-range wireless communication of a plurality of neck microphones in one transceiver is full duplex, whereas remote wireless communication of a plurality of transmission / reception periods in one transceiver is half-duplex.

In this case, when one of the plurality of neck microphone users presses the PTT switch to make a call, the remaining neck microphone users cannot make a call, but in a normal reception mode, any number of neck microphone users can listen.

In addition, in a short-range wireless communication using Bluetooth, one user (microphone # 1) from among a plurality of neck microphones on one side of the talker, other neck microphone users other than the talker (microphone # 2, neck microphone # 3) are the callers. In the present invention, the transceiver 31 not only transmits a voice signal through the neck microphone to the other transceiver, but also feeds back to the wireless connection unit 32 so that the remaining neck microphone users other than the talker (neck microphone). Voice signal is also transmitted to # 2 and neck microphone # 3 so that reception is possible.

In addition, since the present invention is a short-range wireless communication using Bluetooth, unlike the conventional transceiver using a wired handset, it can be freely used within a range of up to 100M can be used for convenience.

In addition, in the present invention, the wireless connection unit 32 of the transceiver and the neck microphone unit 33, 34, 35 of the neck microphone are connected in a master slave manner to enable short-range wireless communication.

In addition, the present invention can convert a device for full duplex communication into a device capable of half duplex communication due to a push call switch (PTT) installed in a neck microphone.

The transmission and reception of voice signals in the wireless transmission / reception system using Bluetooth according to the present invention will be described with reference to FIG. 3.

First, the transmission process of the voice signal, when any one of the microphone # 1, # 2, or # 3 users, for example, the call through the microphone 36a of the microphone # 1 (step 21), the transmission from the microphone The voice signal is transmitted from the first microphone unit 33 to the wireless connection unit 32 through short-range wireless communication between the slave Bluetooth antenna 33a and the master Bluetooth antenna 32a (step 22).

Thereafter, the signal transmitted to the wireless connector 32 is transmitted to the transceiver 31 and transmitted to the other transceiver through the transceiver antenna 31a (step 23).

Looking at the receiving process of the transmission signal at the receiving side, the signal received through the antenna 31a of the transceiver is transmitted to the transceiver 31 and the wireless connection unit 32 connected to the transceiver (step 24).

The signal transmitted to the wireless connection unit 32 is received through the master Bluetooth antenna 32a to the first microphone unit 33, the second microphone unit 34, and the third microphone unit 35 (step) 25).

The signal received at each of the neck microphone units is made available to the user through the speakers 37a, 37b, and 37c in the neck microphone (step 26), thereby terminating the voice signal reception process at the receiver side.

4A is a schematic perspective view of a transceiver in a wireless transmit / receive system according to an embodiment of the present invention, and FIG. 4B is a schematic block diagram of a transceiver in a wireless transmit / receive system according to an embodiment of the present invention.

As shown in Figure 4a and 4b, the transceiver of the wireless transmission and reception system according to an embodiment of the present invention includes a wireless connection 32 and the transceiver 42.

In addition, as illustrated in FIG. 4A, the wireless connection unit 32 may be configured to be detachable from the transceiver unit 42, but may be integrally formed.

Here, the wireless connection unit 32, the master Bluetooth 43 to enable the Bluetooth communication of the slave Bluetooth and the master slave scheme in the neck microphone with respect to the transmission and reception voice signal of the neck microphone; EEPROM 41 that can register up to three slave Bluetooth addresses of the neck microphone at a specific address is included.

In addition, the wireless connection unit 32, the control unit 44 for controlling the master Bluetooth (43) and the EEPROM (41); A master Bluetooth antenna 43a for master communication of the slave Bluetooth with the slave Bluetooth is included.

Here, the transmitter includes a transceiver 42 which transmits a signal transmitted to the master Bluetooth 43 as a radio signal to the other transceiver system or receives a radio signal transmitted from the other transceiver system.

In addition, an audio in port 45, an audio out port 46, and a GND port 47 for communication between the transceiver 42 and the master Bluetooth 43 of the wireless connection unit 32. ), An interface unit 40 composed of a data port 48, a Vcc port 49, and the like is included.

Here, the data port 48 allows the data received by the wireless connection 32 to be transmitted synchronously, asynchronously, or vice versa to the transceiver 42.

In addition, the audio in port 45 causes the audio signal received at the wireless connection unit 32 to be input to the transceiver 42, while the audio out port 46 is used to transmit the audio signal to the transceiver 42. The received voice signal is input to the wireless connection unit 32.

In addition, the Vcc port 48 is a power supply port, and the GND port 49 is a ground port.

Hereinafter, referring to the interface process of the interface unit 40, that is, when the signal received by the wireless connection unit 32 is transmitted to the transceiver unit 42 through the interface unit, At the master Bluetooth 43, an Asyncronous Connection Link (ACL) is attempted through the data port 48, and when the ACL connection is established, a SCO (Syncronous Connection Oriented) connection is made through the audio in port 45.

Here, ACL is a connection state where Bluetooth can perform data communication, and SCO refers to a connection state where Bluetooth can perform voice communication as well as data communication.

In addition, when the signal, ie, the signal received at the transmission / reception unit 42 is transmitted to the wireless connection unit 42 through the interface unit, the master Bluetooth 43 of the wireless connection unit through the data port 48 of the interface unit. Asyncronous Connection Link (ACL) is attempted and ACL connection is established, and then a SCO (Syncronous Connection Oriented) connection is made through the audio out port 46.

5 is a block diagram of a neck microphone in a wireless transmission and reception system according to an embodiment of the present invention.

As shown in Figure 5, the neck microphone according to an embodiment of the present invention includes a microphone 52 for amplifying a user's voice signal during transmission; A speaker 53 is included to enable the reception of the transmitted signal as a voice signal upon reception.

In addition, the neck microphone may include a slave Bluetooth that enables a Bluetooth communication of a master Bluetooth and a master slave method of a transceiver with respect to a voice signal transmitted through the microphone 52 or a voice signal received through the speaker 53. 51) is further included.

In addition, the neck microphone, a codec for transmitting a signal transmitted through the microphone 52 to the slave Bluetooth 51 or a signal received by the slave Bluetooth 51 to the speaker 53 (Codec: 57); The control unit 56 is further connected to the slave Bluetooth 51 to control the entire neck microphone.

In addition, the neck microphone, the battery 55 for supplying power to the slave Bluetooth 2 and the controller 56; A slave Bluetooth antenna 51a is further included for the master slave Bluetooth communication with the master Bluetooth of the transceiver.

In addition, the neck microphone further includes a push call switch (PTT switch) 54 for switching to a user's call mode through pressing when the call is made and when the call is received.

As described above, the wireless transmission / reception system using Bluetooth according to the present invention configures a communication network using Bluetooth and a neck microphone.

In particular, by facilitating the interface between the wireless transceiver and Bluetooth can not only solve the inconvenience of the wired handset, but also enables short-range wireless communication.

Claims (2)

In the transmission and reception system comprising a transmission and reception system of one side for transmitting a signal, and a plurality of other transmission and reception systems for receiving a signal transmitted from the transmission and reception system of one side, the remote wireless communication, A plurality of neck microphones for transmitting a user's signal from a microphone to a wireless connection unit or receiving a signal transmitted from the wireless connection unit in a master slave type Bluetooth communication in the transmission / reception system of one side; A wireless connection unit for receiving a signal from the plurality of neck microphones or transmitting an input signal to the plurality of neck microphones through a master slave method of Bluetooth communication, and transmitting the signal received to the other transmission / reception system as a wireless signal to the other transceiver system. Or a transceiver including a transceiver for transmitting a radio signal received from the other transceiver system to the radio connection unit, and an interface unit for communication between the transceiver and the radio connection unit; Wireless transmission and reception system using a Bluetooth comprising a. The method of claim 1, The interface unit, A data port for transmitting data received in the wireless connection unit synchronously and asynchronously to the transceiver unit, or vice versa; An audio in port configured to input a voice signal received from the wireless connection unit to the transceiver unit; An audio out port for inputting the voice signal received from the transceiver to the wireless connection unit; A Vcc port that is a power-on port, Wireless transmission and reception system using a Bluetooth comprising a GND port which is a ground port.