KR20030032457A - Method and apparatus for making a call using a bluetooth headset - Google Patents

Abstract

PURPOSE: A method of making a call with a Bluetooth headset is provided to retrieve a telephone number through the Bluetooth headset or to directly input a telephone number by pressing a button of the headset, thereby making a call with the Bluetooth headset. CONSTITUTION: A controller is connected with a Bluetooth module(300). The controller checks whether a volume key is inputted(310). If so, the controller checks whether a volume-up key is inputted(320). If so, the controller reads a previous telephone number from a memory to display the number on an LCD(330). The controller checks whether a button key is inputted(350). If so, the controller displays a telephone number corresponding to the key on the LCD(360). The controller checks whether a selection key is inputted(370). If so, the controller transmits a connection message to a mobile communication terminal or a wired telephone(380). The controller connects a call(390).

Description

METHOD AND APPARATUS FOR MAKING A CALL USING A BLUETOOTH HEADSET}

The present invention relates to a method and apparatus for making a call with a headset for Bluetooth.

Short-range mobile wireless communication system is a device and method for transmitting voice and data in real time through a wireless link between communication devices such as mobile phones, laptop computers, and desktops that are usually located within 10 meters. Representative short-range mobile wireless communication systems include Bluetooth wireless link method recently proposed by Ericsson of Sweden and Nokia of Finland. Bluetooth allows wireless devices to connect various communication devices such as mobile phones, notebook computers, facsimiles, MP3 players, etc. The detailed transmission standard proposed by Bluetooth has the advantage of protecting data from security and interference. In addition, since the Bluetooth wireless device can be manufactured in the form of a small microchip, it can be easily combined with communication devices and operates in the 2.4 GHz band, which is a globally compatible frequency band. In addition, the headset employing Bluetooth has a method of wirelessly connecting to a mobile communication terminal located at a short distance so that the user can easily make a call through the headset instead of talking to the mobile communication terminal. However, while a short-range headset employing Bluetooth can connect with a mobile terminal and make a call, only a limited number of calls can be made. It has only a simple button on the headset, so the call can be redialed, or only through voice recognition of some mobile communication terminals. In addition, in order to make a phone call while wearing a headset, the user had to press the dial of the mobile terminal to make a phone call.

Accordingly, an object of the present invention is to provide a method and apparatus for directly calling a headset device for Bluetooth.

Embodiments of the present invention for achieving the above object, in a method for making a call with a Bluetooth headset in a state that can exchange information with each other through an inquiries process and a pairing process, volume key input is A first step of checking whether there is a volume key input, a second step of displaying a Bluetooth packet on the LCD screen if there is the volume key input, and a third step of transmitting a connection message if the Bluetooth packet is displayed on the LCD screen and a selection key input is present; Characterized in that made.

1 is an external view of a headset device for Bluetooth according to an embodiment of the present invention

2 is a block diagram of a headset device for Bluetooth according to an embodiment of the present invention

3 is a control flowchart of a Bluetooth headset device according to an embodiment of the present invention;

Figure 4 is a change of numbers or letters according to the key operation of the button portion of the Bluetooth headset.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. If it is determined that detailed descriptions of related known functions or configurations may unnecessarily obscure the subject matter of the present invention, the detailed descriptions thereof will be omitted.

The Bluetooth headset and the mobile communication terminal or the wired telephone having the Bluetooth function exchange information with each other through an Inquiry process and a Pairing process in order to connect and use each other. Inquiry process refers to the process of finding a peripheral device in order to establish a connection between Bluetooth devices. In addition, the pairing process refers to a process of making information of two devices exchange information between two devices in order to establish a connection between Bluetooth devices. Therefore, FIG. 1 will be described through these processes.

1 is an external view of a headset device for Bluetooth according to an embodiment of the present invention.

Referring to FIG. 1, an LCD 120 displays a phonebook phone number received from a mobile communication terminal and a wired telephone having a Bluetooth function. The volume key 140 is a key for searching a user's desired phone number while looking at the LCD screen 120. The volume key 140 includes a volume up key and a volume down key. The selection key 150 is a key for selecting a phone number searched by the volume key 140 to connect a call. The button unit 130 is a key for allowing a headset user to directly enter a number while viewing the LCD screen 120 in a Bluetooth headset, and is composed of a first key, a second key, a third key, and a fourth key. . The position of the keys may vary depending on the shape of the headset.

2 is a block diagram of a headset device for Bluetooth according to an embodiment of the present invention.

Referring to FIG. 2, the Bluetooth headset device 200 includes a Bluetooth module 210, an LCD unit 260, and a button unit 290. The Bluetooth module 210 may be connected to a mobile communication terminal or a wired telephone for Bluetooth to receive phonebook data and transmit an index or dual tone multi-frequency (DTMF) signal or message for making a call through the mobile communication terminal or a wired telephone. Make sure The index referred to herein refers to a telephone number index in a phone book of a mobile communication terminal or a landline telephone. The DTMF signal refers to the sound heard by the handset when the telephone is pressed with a telephone. In addition, a message can be defined by a volume up key, a volume down key, and a selection key, as shown in Table 1 below.

message Justice Volume up key Press up key on headset Volume down key Press down key on headset Select key Select key pressed

As shown in <Table 1>, a method of searching for a phone number is not to search through an index or a phone number, but to transmit a volume up, down, and selection key of a headset to a mobile communication terminal or a landline. It is a way. The Bluetooth module 210 includes an RF transmitter / receiver 220, a baseband processor 240, a controller 250, a memory 230, an LCD controller 280, an LCD 270, and a button unit 290. .

The RF transmitter / receiver 220 modulates and transmits a wireless transmission data packet generated by the baseband processor 240 to a set frequency band, suppresses amplification of noise of a received frequency signal, and amplifies a signal of a set frequency band. It is then lowered to a low frequency band and transmitted to the baseband processor 240.

The baseband processor 240 changes the packet format to add an access code and a header to various HCI (HOST CONTROL INTERFACE) data packets applied from the controller 250, and then changes the data into a predetermined data packet for wireless transmission. The RF transmitter / receiver 220 wirelessly transmits the set frequency band, and converts the data packet received through the RF transmitter / receiver 220 into an HCI packet and provides it to the controller 250.

The controller 250 controls the overall operation of the Bluetooth communication device.

The memory 230 stores a program for controlling the operation of the controller. And according to the present invention stores the information of the phone book received from the mobile communication terminal or landline.

The LCD (Liquid Crystal Display) controller 280 controls the LCD 270 to display a phone book telephone number received from a mobile communication terminal or a wired telephone having a Bluetooth function under the control of the controller 250.

The button unit 290 outputs signals (numbers or letters) of keys selected and input by the user to the LCD 270.

2, the baseband processor 240 and the controller 250 process a Bluetooth packet including phonebook information coming from the RF transmitter / receiver 220.

The Bluetooth packet may be composed of an index, a name, and a phone number as shown in Table 2 below.

index name Phone number 01 Admiral Yi 011-111-1111 02 Lee Soon-dol 011-111-0000 03 Soonsik Lee 011-111-1100

The Bluetooth packet shown in Table 2 is a form for sending phonebook data stored in a mobile communication terminal or a wired telephone to a Bluetooth headset.

The controller 250 stores the processed phonebook information and the Bluetooth packet in the memory 230 and controls the LCD controller 280 to display the stored information on the LCD 270. When the phone call information and the Bluetooth packet displayed on the LCD 270 are selected through a selection key, an index or DTMF signal or a message for the selected number is sent to a mobile communication terminal or a wireline telephone having a Bluetooth function. Then, the mobile communication terminal or the landline phone makes a call according to the transmission method such as the index or DTMF signal or message, and can make a call through the Bluetooth headset.

3 is a control flowchart of a headset device for Bluetooth according to an embodiment of the present invention.

Referring to FIG. 3, in step 300, the controller 250 is in a connected state with the Bluetooth module 210. Here, the connection state refers to a channel connection state in which data can be exchanged with each other after being connected as a process of connecting Bluetooth devices pared with each other. In step 310, the controller 250 checks whether there is a volume key input. If there is no volume key input, step 320 is performed, and if there is no volume key input, step 350 is performed.

First, in step 320, in step 320, the controller 250 checks whether there is a volume up key input. If there is no volume up key input as a result of the test, step 330 is performed, and step 340 is performed if there is no volume up key input. In step 330, the controller 250 reads out the previous phone number stored in the memory 230 and displays it on the LCD 270, and performs step 370. In this case, the previous telephone number refers to "01 Yi 011-111-1111" in <Table 1> when the first volume up key is input, and the Bluetooth packet displayed on the LCD 270 is "02 Yi Soondol 011-111-0000. In the case of ", the previous telephone number is" 01 Yi 011-111-1111 ". In step 340, the controller 250 reads the phone number stored in the memory 230 and displays the phone number on the LCD 270, and performs step 370. If the phone number is the first volume key input, "01 Yi 011-111-1111" is shown in <Table 1>, and the Bluetooth packet displayed on the LCD 270 is "02 Yi Soondol 011-111-0000. In the case of "", the subsequent phone number is "03 Yi 011-111-1100".

Next, referring to step 350, in step 350, the controller 250 checks whether a button key is input. If there is a button key input as a result of the test, step 360 is performed. In step 360, the controller 250 displays the phone number according to the key input on the LCD 270, and performs step 370.

In step 370, the controller 250 checks whether there is a selection key input. If there is a selection key input as a result of the test, step 380 is performed, and if there is no selection key input, the process returns to step 310. In step 380, the controller 250 transmits the connection message to the mobile communication terminal or the wired telephone. The connection message referred to herein refers to a message defined by an index value or a DTMF signal or a call. When the connection message is transmitted, the controller 250 makes a call connection in step 390.

4 is a view showing a change of numbers or letters according to key operation of a button unit of a Bluetooth headset.

Referring to FIG. 4, when the first key, the second key, the third key, and the fourth key are pressed by the user in step 400, the control unit 250 proceeds to step 420, where “1”, "4", "7", and "*" are displayed. If the first, second, third, and fourth keys are pressed by the user in step 420, the control unit 250 proceeds to step 440 in which the LCD 270 displays "2", "5", "8", and "0". Is displayed. When the first, second, third, and fourth keys are also pressed by the user in step 440, the control unit 250 proceeds to step 460, and the LCD 270 displays "3", "6", "9", and "#". Is displayed. If the first, second, third, and fourth keys are pressed once more in the LCD 270 of step 460, the control unit 250 returns to step 420 to display the first "1", "4", "7", and "*". Is displayed on the LCD 270.

Meanwhile, in the detailed description of the present invention, specific embodiments have been described, but various modifications are possible without departing from the scope of the present invention. For example, in the exemplary embodiment of the present invention, the display order or the position of the keys of the button portion of the Bluetooth headset is only limited to the case shown in FIGS. 1 and 4, but the display order or positions of the keys are described. Even if different, the present invention may be implemented in the same way. Therefore, the scope of the present invention should not be limited to the described embodiments, but should be defined not only by the scope of the following claims, but also by those equivalent to the scope of the claims.

As described above, in the present invention, the existing Bluetooth headset does not enter a phone number and make a call through the terminal, but searches for a desired phone number through the Bluetooth headset or directly enters a phone number by pressing a button on the headset. There is an advantage to making a call.

Claims (3)

In the method of making a call with a Bluetooth headset in a state that can exchange information with each other through an enquiry process and a pairing process, A first step of checking whether there is a volume key input; A second process of displaying the Bluetooth packet on the LCD screen when the volume key is input; The Bluetooth packet is displayed on the LCD screen and if there is a selection key input is a third step of transmitting a connection message characterized in that the method for making a call with a Bluetooth headset. The method of claim 1, And a fourth step of displaying a phone number according to the key input on the LCD screen when there is no volume key input and a button key input. In the headset device for Bluetooth having a Bluetooth module and capable of making a call via a mobile communication terminal or a landline telephone, LCD screen displaying Bluetooth packets, A liquid crystal display controller which controls to display the connection message output from the Bluetooth module on the LCD screen; And a button unit having a first key, a second key, a third key, and a fourth key and outputting a signal of the keys to the LCD screen controller.