KR20090016976A - Method for wireless connection between mobile station and wireless headset - Google Patents

Method for wireless connection between mobile station and wireless headset Download PDF

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Publication number
KR20090016976A
KR20090016976A KR1020070081353A KR20070081353A KR20090016976A KR 20090016976 A KR20090016976 A KR 20090016976A KR 1020070081353 A KR1020070081353 A KR 1020070081353A KR 20070081353 A KR20070081353 A KR 20070081353A KR 20090016976 A KR20090016976 A KR 20090016976A
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KR
South Korea
Prior art keywords
wireless headset
wireless
mobile terminal
bluetooth
headset
Prior art date
Application number
KR1020070081353A
Other languages
Korean (ko)
Inventor
김봉준
Original Assignee
삼성전자주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 삼성전자주식회사 filed Critical 삼성전자주식회사
Priority to KR1020070081353A priority Critical patent/KR20090016976A/en
Publication of KR20090016976A publication Critical patent/KR20090016976A/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
    • H04R1/1041—Mechanical or electronic switches, or control elements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R5/00—Stereophonic arrangements
    • H04R5/033—Headphones for stereophonic communication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M2250/00—Details of telephonic subscriber devices
    • H04M2250/02—Details of telephonic subscriber devices including a Bluetooth interface
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2420/00—Details of connection covered by H04R, not provided for in its groups
    • H04R2420/07—Applications of wireless loudspeakers or wireless microphones
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2499/00—Aspects covered by H04R or H04S not otherwise provided for in their subgroups
    • H04R2499/10—General applications
    • H04R2499/11—Transducers incorporated or for use in hand-held devices, e.g. mobile phones, PDA's, camera's

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Telephone Function (AREA)

Abstract

A method for automatically connecting mobile terminal and wireless headset with bluetooth mode is provided to reduce unnecessary current consumption during latency time by supplying a power source to a wireless headset when the wireless headset is coupled. A mobile terminal has a wireless headset, and senses attaching/detaching of the wireless headset by a sensor(505). When the wireless headset is detached, a bluetooth mode is turned on, and a message for calling the wireless headset is transmitted(515, 520). When a response message is received from the wireless headset, communication link for transmitting/receiving data is formed(530). When connection of the wireless headset and the mobile terminal is sensed(535), the bluetooth mode of the mobile terminal is automatically turned off(560).

Description

Wireless connection between mobile device and wireless headset {Method for wireless connection between Mobile station and Wireless Headset}

The present invention relates to a method in which the wireless headset and the portable terminal are automatically wirelessly connected when the wireless headset is detached from the portable terminal.

Recently, in the wireless communication and computer industries, various technologies related to wireless communication have been developed and implemented as low cost, low power wireless devices or wireless links have become a big concern. Among the various studies on this, professional code, namely Bluetooth, was defined by Ericsson. Bluetooth is a wireless communication method based on short-range radio technology that operates in the 2.4 GHz frequency band. Devices capable of Bluetooth communication can transmit voice and data to each other at speeds of up to 1Mbps over a 10m radius. In addition, the Bluetooth module has the advantage of very low power consumption. Accordingly, various products equipped with a Bluetooth module have been released, and cell phone wireless headsets are in the spotlight.

In order to perform Bluetooth wireless communication, a user must first purchase a device capable of Bluetooth communication and then perform a pairing process. After the pairing process, the Bluetooth devices in the Bluetooth communication distance are inquired and then a specific device is called to perform wireless communication. However, for the Bluetooth connection, the user has to manually set the pairing, inquiry, and calling steps by using a shortcut key or a menu of the terminal, which is inconvenient.

Accordingly, there is a need to provide a wireless headset detachable to a portable terminal without having to separately purchase or carry the portable terminal and the wireless headset. Furthermore, there is a need for a method of automatically establishing a wireless connection when the wireless headset is detached from the portable terminal.

The present invention inserts a detachable wireless headset into a terminal instead of a built-in speaker, and allows the portable terminal and the wireless headset to be wirelessly connected at the same time as the wireless headset is detached from the terminal. Preferably, when a call is being received, the wireless headset automatically connects to the call mode when it is detached from the terminal, and when the wireless headset is combined with the mobile terminal, the wireless connection is automatically turned off.

In order to achieve the above object, the portable terminal may include a controller, a Bluetooth unit, a sensor unit, a headset interface unit, an audio processor, a power supply unit. The wireless headset according to the present invention functions as a speaker of the portable terminal when combined with the portable terminal, and as a wireless earphone when separated from the portable terminal.

 When using the portable terminal and the wireless headset of the invention, there is no need to purchase the portable terminal and the wireless headset separately. When the wireless headset is detached from the mobile terminal, a wireless connection is automatically established with each other, and the wireless headset operates as a wireless earphone. On the other hand, when the wireless headset and the portable terminal are combined, the wireless connection is automatically turned off and the wireless headset operates as a speaker of the portable terminal. Preferably, the portable terminal can reduce unnecessary current consumption during standby time when the wireless headset is not used by supplying power to the wireless headset when the wireless headset is coupled.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings such that those skilled in the art may easily implement the present invention.

The portable terminal and the wireless headset according to the present invention can be mutually wirelessly connected by all kinds of short range wireless communication including Bluetooth and Zigbee, but the following description will be made based on Bluetooth.

The automatic wireless connection method of the portable terminal and the wireless headset according to the present invention includes an automatic wireless connection method and an automatic wireless connection release method of the portable terminal and the wireless headset.

The portable terminal according to the present embodiment may include not only a mobile communication terminal but also a personal digital assistant (PDA), a smart phone, an international mobile telecommunication 2000 (IMT-2000) terminal, a UMTS terminal, and the like. .

1 illustrates a wireless headset 100 detachable to a portable terminal according to an embodiment of the present invention. When the wireless headset 100 and the portable terminal are combined, the audio output unit 110 operates as a speaker of the portable terminal. On the other hand, when the wireless headset 100 is separated from the mobile terminal, the audio output unit 110 operates as a wireless headset. The microphone 120 converts a user's voice into an electrical signal and operates only when the wireless headset 100 is separated from the portable terminal. Power of the wireless headset 100 may be supplied from the mobile terminal through the wireless headset terminal unit 130. In addition, when the wireless headset 100 is combined with the portable terminal, the audio signal is transmitted to the wireless headset 100 through the terminal unit 130.

2 illustrates a coupling relationship between the mobile terminal 200 and the wireless headset 100 according to an exemplary embodiment of the present invention. The wireless headset 100 may be connected to the mobile terminal 200 through a headset interface 210. When the wireless headset 100 is coupled to the portable terminal 210, the terminal unit 130 of the wireless headset and the terminal unit 220 of the portable terminal are connected to each other. When the wireless headset 100 and the portable terminal 200 are coupled, terminals are connected, and the wireless headset 100 receives power from the portable terminal 200. The audio signal is also transmitted to the wireless headset 100 through the terminal unit 130 of the wireless headset and the terminal unit 220 of the portable terminal.

3 is an internal structure of a mobile terminal 200 according to an embodiment of the present invention. The portable terminal 200 includes a communication unit 305, an input unit 310, a display unit 315, a storage unit 320, a Bluetooth unit 325, a sensor unit 330, a headset interface unit 335, and a power supply unit 340. ), An audio processor 345, and a controller 350.

The communication unit 305 includes an RF transceiver, a duplexer, and the like and performs a function as a typical mobile communication terminal such as an RF transmission / reception process.

The input unit 310 may be configured as a keypad, a touch screen, or a touch pad, and is used to give a command or obtain desired information by a user.

The display unit 315 may be made of an LCD or the like, and displays various display data and operation states generated on the terminal on the screen. When the display unit is implemented as a touch screen method, the display unit may also operate as an input unit.

The storage unit 320 stores programs and data necessary for the overall operation of the terminal according to the embodiment of the present invention. The storage unit temporarily stores non-volatile memory (flash memory or EEPROM) that stores a ROM and various phone numbers in which a program necessary for controlling the control unit of the portable terminal is stored, and data generated when controlling the program. RAM to process. In addition, the storage unit 320 may detect whether the wireless headset 100 is detached according to an embodiment of the present invention, and accordingly, may store a program for automatically controlling a short-range communication link.

The Bluetooth unit 325 performs Bluetooth communication with another device having a Bluetooth function, and includes a Bluetooth transmitter and a Bluetooth receiver.

The sensor unit 330 is a device for detecting whether the wireless headset 100 and the portable terminal 200 of the present invention are attached or detached, and the separation detection signal or the combined detection signal generated by the sensor unit is transmitted to the controller. As a means for detecting whether the wireless headset 100 and the portable terminal 200 are attached or detached, a metal terminal, a magnetic or an infrared sensor may be used. More preferably, any means capable of detecting detachment can be used.

The headset interface unit 335 is a portion where the wireless headset 100 and the mobile terminal 200 are interconnected. The headset interface unit 335 connects or terminates the terminal unit 130 of the wireless headset and the terminal unit 220 of the portable terminal. Whether the connection or disconnection is recognized by the sensor unit 330, the signal is transmitted to the controller.

The power supply unit 340 supplies power to each unit of the portable terminal, and in particular, may be connected to the headset interface unit 335. This is for the power supply unit 340 to supply power to the wireless headset 100 when the wireless headset 100 and the portable terminal 200 are connected.

The audio processor 345 may include a microphone and a speaker for outputting an audio signal. In addition, in the exemplary embodiment of the present invention, the speaker may not be provided.

The controller 350 controls the overall operation of the mobile terminal 200. In particular, in the present invention, the controller 350 may control an operation of automatically wirelessly connecting the wireless headset 100 and the portable terminal 200 when the wireless headset 100 is separated from the portable terminal 200. . When the wireless headset 100 is separated from the mobile terminal 200, the sensor unit 350 detects the departure to generate a departure detection signal, and the signal is transmitted to the controller 350. When the detection signal is transmitted, the controller 350 controls the Bluetooth unit 325 of the mobile terminal 200 to perform automatic wireless connection.

4 is an internal structure of a wireless headset 100 according to an embodiment of the present invention. The wireless headset 100 may include a Bluetooth unit 410, a power unit 420, an audio processor 430, and a controller 440.

The Bluetooth unit 410 performs Bluetooth communication with the mobile terminal 200, and may include a Bluetooth transmitter and a Bluetooth receiver.

The power supply unit 420 supplies power to each unit of the wireless headset 100 when the wireless headset 100 is separated from the portable terminal 200. When the wireless headset 100 and the portable terminal 200 are combined, each unit of the wireless headset receives power from the power unit 340 of the portable terminal.

The audio processor 430 includes a speaker 430a for converting an electrical signal into a voice signal, and a microphone 430b for converting the voice signal into an electrical signal. The microphone 430b is connected only when the wireless headset 100 is separated from the portable terminal 200. The speaker 430a serves as a speaker of the mobile terminal when the wireless headset 100 is connected to the mobile terminal 200. On the contrary, when the wireless headset 101 is separated from the mobile terminal 200, the wireless headset 101 serves as a wireless speaker.

The controller 440 controls the overall operation of the wireless headset 100. In particular, the controller 440 may connect or block the microphone 430b of the audio processor according to whether the wireless headset 100 and the portable terminal 200 are coupled to each other.

5 is a flowchart illustrating an automatic wireless connection process of a mobile terminal when the wireless headset 100 is detached from the mobile terminal 200 according to an embodiment of the present invention.

First, as a preparation step for automatically wirelessly connecting the wireless headset 100 and the mobile terminal 200, pairing in which the wireless headset and the mobile terminal mutually register the counterpart device must be preceded. When the wireless headset 100 is separated from the mobile terminal 200 after the pairing is performed, the sensor unit 330 detects the departure of the wireless headset 100 and informs the control unit 350 of this, and the control unit 350 ) Receives a departure detection signal from the sensor unit 330. Then, the control unit 350 detects this in step 505, and controls the audio processing unit 345 to block the audio transmission / reception path of the terminal in step 510. At the same time, the controller 350 automatically turns on the Bluetooth mode of the portable terminal 200 by driving the Bluetooth unit 325 in step 515. When the Bluetooth mode of the portable terminal 200 is in the on mode, the controller 350 controls the Bluetooth unit 325 to transmit a call message in step 520 to call the detached headset 100. When a response message corresponding to the call message is generated, the controller 350 detects reception of the response message in step 525. Then, the control unit 350 controls the Bluetooth unit 325 in step 530 to form a communication link for data transmission and reception between the mobile terminal 200 and the separated wireless headset 100.

When the link is formed, the portable terminal and the wireless headset can perform wireless communication with each other. The controller 350 of the portable terminal controls the Bluetooth unit 325 to transmit the audio signal received through the portable terminal to the wireless headset 100 through the Bluetooth transmitter of the portable terminal. Then, the controller 440 of the wireless headset receives the audio signal through the Bluetooth receiver of the wireless headset. Thereafter, the controller 440 of the wireless headset controls the audio processor of the wireless headset to reproduce the audio signal received through the speaker 430a of the audio processor of the wireless headset.

On the other hand, when an audio signal is input through the microphone 430b of the audio processor, the controller 440 of the wireless headset receives the audio signal. Then, the controller 440 controls the Bluetooth unit 410 to transmit the audio signal to the mobile terminal through the Bluetooth transmitter of the wireless headset. The controller 350 of the portable terminal receives the audio signal through the Bluetooth receiver of the portable terminal. The controller 350 of the portable terminal controls the communication unit 305 to transmit the received audio signal using an RF frequency.

In a preferred embodiment, after step 530, the wireless headset 100 and the mobile terminal 200 may be combined. Then, the sensor unit 330 detects the combination of the wireless headset 100 and the portable terminal 200 and informs the controller 350 of the combination, and the controller 350 detects the combination generated from the sensor unit 330. Receive a signal. Then, the controller 350 detects this in step 535 and controls the audio processor 345 to connect the audio transmission / reception path of the mobile terminal 200 in step 555. Thereafter, the controller 350 controls the Bluetooth unit 325 to automatically turn off the Bluetooth mode of the mobile terminal in step 560.

In a preferred embodiment, the call may be received while a link for data transmission and reception is established. Then, the control unit 350 of the portable terminal receives the incoming call in step 540. In operation 545, the controller 350 automatically switches the portable terminal to a call mode. The call mode refers to a state in which a user can talk to the other party using the mobile terminal. Thereafter, the controller 350 determines whether the call is released in step 550 and continues to provide a call service when the call is not released. On the other hand, when the call is released, the control unit 350 continues to provide the Bluetooth service by maintaining the communication link establishment in step 530.

6 is a flowchart illustrating a call connection process of a mobile terminal according to whether a headset is detached when a call is received according to an embodiment of the present invention.

First, a call is received at step 605. When the wireless headset 100 is coupled to the mobile terminal 200, the sensor unit 330 of the mobile terminal notifies the controller 350 of the portable terminal, and the controller 350 receives the combined detection signal from the sensor unit 330. Receive. The controller 350 detects this in step 610 and controls the call service through the terminal in step 665.

On the other hand, when the wireless headset 100 is separated from the mobile terminal 200, the sensor unit 330 of the mobile terminal detects the departure of the wireless headset 100 to inform the controller, and the control unit 350 is the sensor unit The departure detection signal is received from 330. Then, the control unit 350 detects this in step 610 and blocks the audio transmission / reception path of the terminal by controlling the audio processor 345 in step 615. At the same time, the controller 350 drives the Bluetooth unit 325 to automatically turn on the Bluetooth mode of the portable terminal 200 in step 620. When the Bluetooth mode of the portable terminal 200 is in the on mode, the controller 350 controls the Bluetooth unit 325 to call the detached headset 100 and transmits a call message in step 625. If a response message corresponding to the call message is generated from the detached headset 100, the controller detects reception of the response message in step 630. Then, the control unit 350 controls the Bluetooth unit 325 in step 635 to form a link for data transmission and reception between the mobile terminal 200 and the separated wireless headset 100. Thereafter, the controller 350 automatically connects the incoming call in step 640 to control the call service. While controlling the service, the control unit 350 determines whether the call is released, and if the call is not released, continues to control the call service in step 640. On the other hand, after the call is released, the controller 350 recognizes that the call is released. When the wireless headset 100 is coupled to the mobile terminal 200, the sensor unit 330 detects this, generates a combined detection signal, and transmits the combined detection signal to the controller 350. Then, the control unit 350 detects the coupling in step 650, and in step 655 controls the Bluetooth unit 325 to turn off the Bluetooth to provide a Bluetooth off mode service. The Bluetooth off mode service means that the Bluetooth off mode service performs a function of a typical portable terminal in a state where the Bluetooth is turned off. On the other hand, if the wireless headset 100 continues to be separated from the mobile terminal after the call is released, the controller 350 controls the Bluetooth unit 325 to control the Bluetooth on mode service in step 660. The Bluetooth on mode service means that the wireless headset and the mobile terminal perform Bluetooth communication with each other when the Bluetooth mode is turned on.

As described above, the present specification and drawings have been described with respect to preferred embodiments of the present invention, although specific terms are used, it is only used in a general sense to easily explain the technical contents of the present invention and to help the understanding of the present invention. It is not intended to limit the scope of the present invention. It will be apparent to those skilled in the art that other modifications based on the technical idea of the present invention can be carried out in addition to the embodiments disclosed herein.

1 illustrates a detachable wireless headset in accordance with an embodiment of the present invention.

2 is a view showing a combined state of the removable wireless headset and the mobile terminal according to an embodiment of the present invention.

3 is an internal structural diagram of a portable terminal according to an embodiment of the present invention;

4 is an internal structure diagram of a wireless headset according to an embodiment of the present invention.

5 is a flowchart illustrating an automatic wireless connection process of a mobile terminal when the wireless headset is detached from the mobile terminal according to an embodiment of the present invention.

FIG. 6 is a flowchart illustrating a call connection process of a mobile terminal according to whether a headset is detached when a call occurs according to an embodiment of the present invention.

Claims (7)

Detecting, by a mobile terminal, having a detachable wireless headset, whether the wireless headset is detachable through a sensor; Upon turning on the wireless headset departure detection, transmitting a message for calling a wireless headset; And Upon receiving a response message from the wireless headset, establishing a communication link for transmitting and receiving data with the wireless headset; Wireless connection method comprising a. The method of claim 1, Detecting engagement of the wireless headset; And Turning off the Bluetooth mode of the mobile terminal; Wireless connection method further comprising. The method of claim 2, The detecting of the departure of the wireless headset may include: blocking an audio transmission / reception path of the mobile terminal; Wireless connection method further comprising. The method of claim 3, Detecting the coupling of the wireless headset may include connecting an audio transmission / reception path of the mobile terminal; Wireless connection method further comprising. When the call is received, detecting, by the mobile terminal having a detachable wireless headset, whether the wireless headset is detached; Transmitting a call message of a wireless headset by turning on a Bluetooth mode when detecting the departure of the wireless headset; Upon receiving a response message from the wireless headset, establishing a communication link for transmitting and receiving data with the wireless headset; And Switching the mobile terminal to a call mode; Wireless connection method comprising the. The method of claim 5, Detecting a coupling of the wireless headset through a sensor unit of the portable terminal when the incoming call is released; And Turning off the Bluetooth mode of the mobile terminal; Wireless connection method further comprising. The method according to any one of claims 1 to 6, The wireless connection method characterized in that using Bluetooth communication.
KR1020070081353A 2007-08-13 2007-08-13 Method for wireless connection between mobile station and wireless headset KR20090016976A (en)

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