KR100347129B1 - A handheld personal communication device combine darc with bluetooth transmission and reception function, and data processing method using it - Google Patents

Abstract

The present invention relates to a personal communication device (Handheld Device) equipped with a Bluetooth transceiver capable of wireless communication between subregions, and receives wireless additional data transmitted from a DATA Radio Channel (DARC) radio transmitting station 200 at a remote location. A DARC receiver 150 for generating a stable intermediate frequency, detecting the generated intermediate frequency, and outputting a band frequency of a predetermined band; A DARC decoder 162 for decoding a predetermined band frequency provided from the DARC receiving unit 150, and a microcontroller unit (MCU) 164 for controlling DARC data (Data 1) provided from the DARC decoder 162. A DARC decoder 160 provided; A switching unit (180) for selectively performing Bluetooth data (Data 2) supplied from a Bluetooth server (300) for providing Bluetooth data and DARC data (Data 1) provided from the DARC receiving unit; And a CPU 120 for processing data provided from the switching unit 180, a memory 118 for storing the data, and a liquid crystal display (LCD) for displaying the data processed through the CPU 120. Body portion 110 to be; Characterized in that it comprises a.

Description

Personal communication device that combines data wireless channel and Bluetooth transmission / reception function and its data processing method

The present invention relates to an additional data service using a data radio channel (hereinafter abbreviated as DARC) and a personal communication device (Handheld Device) capable of wireless data service between small areas using Bluetooth.

DARC (Data Radio Channel) is a supplementary service for maximizing frequency operation efficiency by multiplexing additional digital information with existing FM broadcast waves.It is a real-time downtown for vehicle navigation in the frequency band of approximately 87.5MHz ~ 180MHz, It is a service system that provides various additional data services such as highway traffic information, position correction DGPS (Differential Global Positioning System), Geographic Information System (GIS) information, news, weather, and time signal. DARC also plays an important role in providing a wide range of traffic information services to vehicle drivers, with a wide range of services, low operating costs and a complete network without requiring additional frequency spectrum.

Next, Bluetooth refers to the development code name of the wireless data communication standard developed by Ericsson of Sweden, IBM and Intel of USA, Nokia of Finland, Nokia of Finland, Toshiba of Japan, etc. It aims to realize wireless data communication with maximum transmission distance of 10m at 1Mbps.

The 1 Mbps selected here is a transmission speed that can be realized relatively easily and at low cost by using 2.4GHz Industrial Scientific Medical (ISM) band, which can be used without a user's license. It was decided based on the judgment that the transmission distance between the device carried by the user and the device installed in the desk is sufficient. In this case, the transmission speed of 1Mbps and the transmission distance of 10m may vary depending on the license requirements and transmission capacity.

On the other hand, the infrared communication standard "Infrared Data Association" (version 1.1), which is the industry standard for data communication in the current telecommunication period, leads the Bluetooth with a maximum data transmission rate of 4Mbps but a short transmission distance of 1m.

In addition, Bluetooth adopts CVSD (Continuous Variable Slope Delta Modulation), a voice encoding method, which can be used for voice transmission as well as text data transmission. It also uses cryptography to keep communications secret.

However, the biggest feature of Bluetooth compared to infrared communication method is that it can communicate with other information communication devices while carrying a portable information communication device in a bag or pocket. For example, the Bluetooth method is a wireless communication method that has recently been in the spotlight because it can transmit image data photographed by a digital camera as it is in any state within a certain distance without cumbersome procedures such as cable connection with a PC or a mobile phone.

Hereinafter, a communication device using a personal digital assistant (PDA), which is a commonly used portable communication device, will be described.

1 is a schematic block diagram showing a state of transmitting and receiving data using a PDA, which is a general portable communication device.

In FIG. 1, a conventional portable digital assistant (PDA) is denoted by reference numeral 1. Reference numeral 2 denotes a personal computer (PC) used to store data on the PDA 1 or to transmit edited data in a device other than the PDA 1, 3 a mobile phone terminal for wireless data service, 4 a mobile phone A mobile telephone base station for controlling data transmission and reception of the terminal 3, 5 denotes an external modem, 6 denotes a data server connected to the external modem 5, respectively.

Referring to Figure 1 will be described in detail with respect to the communication device using a conventional PDA (Personal Digital Assistants).

The PDA 1 which is generally used processes most of the data information in the following manner. In other words, transmission and reception of necessary data is directly input on the PDA 1 or processed depending on the personal computer 2, the mobile phone terminal 3, the external modem 5, or the like.

In other words, in the conventional portable communication device 1 as described above, the user retrieves and stores the corresponding data using the personal computer 2 in order to obtain specific information, and then detachable connector cable 1a. By connecting to the PDA 1, the desired data is stored on the PDA 1 and utilized.

In addition, when using a wireless data service for obtaining specific information, after connecting the PDA 1 and the mobile telephone terminal 3 using the detachable connector cable 1a, the mobile telephone terminal 3 and the mobile terminal 3 are moved. After retrieving specific information through wireless data communication between the telephone base stations 4, the retrieved data is stored on the PDA 1.

Similarly, in case of using the external modem 5, the connector 1 is connected to the PDA 1 using the detachable connector cable 1a, and then the data server 6 is connected via the wired cable 5a. After retrieving the specific information, the retrieved information is stored in the PDA 1 through the wired cable 5a.

However, when using the mobile telephone terminal 3, various data servers 6, etc., a predetermined usage fee is paid. Therefore, if the user wants to search for the desired information, these devices must be provided separately, and the cost of data search and the like must be additionally added. For example, in order for a user to display and store specific information "OO department store sale" using the PDA 1 through the LCD (not shown) provided in the PDA 1, the personal computer 2 or the mobile telephone A terminal 3, an external modem 5, or the like must be used, thereby accessing a data server 6 provided for a fee to retrieve and store desired information.

As described above, in order to retrieve or store specific information using a conventional portable communication device such as a PAD, there is a problem in that a connection between an external device used with the portable communication device needs to be made separately, and there is a problem. There is also a problem, such as a fee that users are reluctant to use.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and its object is to use a data supplementary service provided through a free wireless data channel, and a wireless data channel capable of data service through a wireless connection between subregions. And to provide a personal communication device having a Bluetooth transmission and reception function.

Another object of the present invention is to provide a method for receiving necessary information while automatically switching between wireless data channel and Bluetooth function.

1 is a schematic block diagram showing a state of transmitting and receiving data using a PDA which is a general portable communication device.

2 is a block diagram showing the configuration of a hand-held device having a data radio channel and a Bluetooth transmission / reception function according to the present invention.

3 is a detailed block diagram showing an internal configuration of a personal communication device having a data radio channel and a Bluetooth transmission / reception function according to the present invention.

4 is a flowchart illustrating a method for switching data radio channel and Bluetooth function using a personal communication device according to the present invention.

Explanation of symbols on the main parts of the drawings

100: personal communication device 110: main body

116: keypad 118: memory unit

120: CPU A 122: CPU B

130: high frequency oscillator 140: intermediate frequency amplifier

150: DARC receiver 160: DARC decoder

170: Bluetooth transceiver 180: switching unit

300: Bluetooth server IRT1 ~ IRT3: interrupt signal

A personal communication device having a DARC and a Bluetooth transmission / reception function according to the present invention for achieving the above object is a personal communication device (Handheld Device) equipped with a Bluetooth (Bluetooth) transceiver capable of wireless communication between small areas,

DARC receiving unit 150 for receiving a wireless additional data transmitted from a remote DARC (DAta Radio Channel) radio station 200 to generate a stable intermediate frequency, detects the generated intermediate frequency and outputs a band frequency of a predetermined band Wow;

A DARC decoder 162 for decoding a predetermined band frequency provided from the DARC receiving unit 150, and a microcontroller unit (MCU) 164 for controlling DARC data (Data 1) provided from the DARC decoder 162. A DARC decoder 160 provided;

A switching unit (180) for selectively performing Bluetooth data (Data 2) supplied from a Bluetooth server (300) for providing Bluetooth data and DARC data (Data 1) provided from the DARC receiving unit; And

A CPU 120 for processing data provided from the switching unit 180, a memory 118 for storing the data, and a liquid crystal display (LCD) for displaying the data processed through the CPU 120; Main body 110; It can be achieved by a personal communication device comprising a.

Herein, the switching unit 180 includes: a state checker 186 having an indicator for determining whether it is in an area where Bluetooth transmission and reception is possible; A selection switch 1 182 for passing the data when DARC data Data 1 provided from the DARC receiving unit 150 side is selected; When Bluetooth data (Data 2) provided from the Bluetooth transceiver 170 is selected, it is preferable to include a selection switch 2 (184) for passing this data.

Herein, the main body 110 may be capable of wireless communication of itself, regardless of whether DARC data (Data 1) and Bluetooth data (Data 2) are used.

With such a configuration, the user can use the free data adding service by using only a simple device, and can quickly receive the data service by enabling the wireless connection between the small regions without providing a separate device.

Another object of the present invention is a data processing method for selectively performing DARC data, which is a wireless additional data service, and Bluetooth data capable of wireless communication between small areas.

Determining whether a Bluetooth signal has been received (S10);

If it is determined in step S10 that a Bluetooth signal is received, the selection switch 2 for receiving the Bluetooth signal is turned on (S20);

Receiving the Bluetooth data when the selection switch 2 is turned on in the step S20 (S30);

Storing the data received in the step S30 in a memory unit and displaying the same through a liquid crystal display (LCD) (S40);

Determining whether or not the Bluetooth data has been received; if yes (Yes), returns to the initial state; if not, returns to step S10 to continuously determine whether a Bluetooth signal is received (S50);

If the Bluetooth signal is not received in step S10 (No), turning on the selection switch 1 for receiving DARC data (S60);

Receiving DARC data when selection switch 1 is turned on in step S60 (S70);

Storing DARC data received from the step S70 in a memory unit and displaying the same through a liquid crystal display (LCD) (S80); And

Determining whether the reception of the DARC data has been completed; if yes (Yes), returns to the initial state, and if not (No), returns to step S60 to continuously receive the DARC signal (S90). This can be achieved by a data processing method.

By adopting such a method, it is possible to automatically transmit and receive data while automatically switching between a data supplementary service transmitted wirelessly and a data service using Bluetooth.

As described above, a personal communication device having a DARC and a Bluetooth transmission / reception function according to the present invention can basically use a free additional data service through a DARC while using a personal communication device, and move to a Bluetooth transmission / reception area when the Bluetooth mode is reached. The main idea is to automatically switch the data service through a small area wireless connection.

The above objects and features and advantages of the present invention will become more apparent from the following detailed description taken in conjunction with the accompanying drawings.

(Example)

A personal communication device having a DARC and a Bluetooth transmission / reception function according to the present invention having the above-described effects will be described in detail with reference to the accompanying drawings.

Hereinafter, with reference to the accompanying drawings will be described in more detail.

First, FIG. 2 is a block diagram illustrating a configuration of a personal communication device (Handheld Device) having a data radio channel and a Bluetooth transmission / reception function according to the present invention.

In FIG. 2, reference numeral 100 denotes a handheld device having a data radio channel and a Bluetooth transmission / reception function according to the present invention, 200 denotes a DARC radio transmission station generating and transmitting an FM additional data service, and 300 denotes a restricted area. A Bluetooth server capable of transmitting data between subregions 18 denotes a server for using a conventional data service (for example, a personal computer, an external modem or a mobile phone terminal). In addition, 150 is a DARC receiver, 170 is a Bluetooth transceiver, and 13 is a connector hole for connecting a hand-held device and an external device according to the present invention, and 13a is a detachable connector cable.

As shown in FIG. 2, the personal communication device 100 according to the present invention includes a DARC receiver 150 and a Bluetooth transceiver 170 within a conventional portable communication device PDA.

An example of receiving wireless data using the personal communication device 100 according to the present invention having the above configuration and utilizing an automatic data transfer service between subregions will be described with reference to the drawings.

First, when performing a normal radio call using the personal communication device 100 according to the present invention and using the additional data service generated from the DARC radio transmitting station 200, the personal communication device 100 is provided on the personal communication device 100. By selectively adjusting the keypad (refer to reference numeral 116 of FIG. 3 described later), the additional data service information provided wirelessly is received. The additional wireless data service information received here is displayed through a liquid crystal display (LCD) of the personal communication device 100 (similarly, reference numeral 128 of FIG. 3).

Next, even when making a call using the personal communication device 100 according to the present invention or receiving an additional data service provided from the DARC radio transmitting station 200, when moving to an area where Bluetooth service is available, It will receive a signal that it has been approached within the receivable area.

Therefore, when the user using the personal communication device 100 according to the present invention wants to use the Bluetooth service, the user can selectively switch the reception mode to use the Bluetooth service. This will be described later in detail.

Of course, even when using the DARC service or Bluetooth service using the personal communication device 100 according to the present invention, it is also possible to communicate using the personal communication device 100 itself instead of processing these signals.

The process of the data service using the personal communication device 100 according to the present invention will be described in detail.

First, when the wireless additional data service of the FM signal is transmitted from the DARC wireless transmitting station 200 shown in FIG. 2, the DARC receiving unit 150 embedded in the personal communication device 100 receives the FM signal, and After extracting additional data service information included in the FM signal, the additional data service information is displayed on an LCD (not shown) on the personal communication device 100.

In addition, when moving during the DARC service to enter the Bluetooth service area (for example, within 10m from the Bluetooth server 300), the Bluetooth communication unit 170 provided in the personal communication device 100 is provided in Bluetooth Receives a high frequency, and allows the personal communication device 100 to select whether or not to use the Bluetooth service.

In addition, it is also possible to use an external device (for example, a personal computer, an external modem, a mobile phone terminal, etc.) used to use a data service with a PDA, which is a conventional portable communication device 1, of course. That is, by using a connector cable 13a detachable to the connector hole 13 provided below the personal communication device 100 according to the present invention, one end thereof is connected to an external device or the like so that various information provided through them can be utilized. do.

3 is a block diagram showing the internal configuration of a personal communication device having a DARC and Bluetooth transmission and reception function according to the present invention.

3, 100 shows a personal communication device according to the present invention. As shown in FIG. 3, the personal communication device 100 according to the present invention includes a main body 110, a DARC receiver 150, a Bluetooth transceiver 170, a switching unit 180, and the like.

As shown in FIG. 3, the main body 110 includes a clock generator 112, a touch panel 114, a keypad 116, a memory 118 that is a data storage device, and CPUs A and B 120 and 122. , A power supply unit 124, a power reset switch 126, a power controller 127, and a liquid crystal display (LCD) that is a data display device.

Here, the input / output terminals of the clock generator 112, the touch panel 114, the keypad 116, and the memory 118, which is a data storage device, are connected to the CPU A 120 side, and the power supply unit 124, power supply. Each input / output terminal of the reset switch 126 and the power controller 127 is connected to the CPU B 122 side. Of course, these CPUs A, B (120, 122) are configured to exchange data with the memory 118, which is a storage device, and the liquid crystal display device 128 also has all of these CPUs A, B (120, 122) in common. Connect to display data information.

In addition, the DARC receiver 150 mixes the frequency of the local oscillator 134 with the output frequency of the local oscillator 134 and the high frequency amplifier 132 generating the local oscillation frequency, the high frequency amplifier 132 for amplifying the input high frequency. A high frequency oscillator 130 comprising a mixer 136 for generating a predetermined intermediate frequency IF, and a phase locked loop for providing a stable frequency phase by the high frequency oscillator 130. PLL) 138, an IF filter (hereinafter referred to as IF filter) 142 for receiving and filtering the intermediate frequency generated from the high frequency oscillator 130 and the output of the IF filter 142. An intermediate frequency amplifier 140 including an IF amplifier 144 for amplifying the signal and an FM detector 146 for detecting an FM signal from the amplified IF frequency, and a signal output from the intermediate frequency amplifier 140. The frequency of the band, Example comprise a band-pass filter 148 passing only 76kHz) band.

The DARC decoder 160 includes a DARC decoder 162 and a micro control unit (hereinafter referred to as MCU) 164 that decode the DARC frequency passed through the band pass filter 148. The output is provided to the switching unit 180.

In addition, the Bluetooth transceiver 170 is a device for transmitting and receiving Bluetooth data transmitted and received from the Bluetooth transceiver 300 shown in FIG. 2, and controls the selection through the switching unit 180.

Lastly, the switching unit 180 is a switching unit for selectively using the decoded DARC additional data and Bluetooth data, and transmits / receives data of the selection switch 1 182 for receiving data from the DARC side and the Bluetooth side. Selection switch 2 184 and a status checker 186 for determining whether the user has approached the Bluetooth service area. The other end output of the switching unit 180 is provided to the main body unit 110, and is processed through the CPUs A and B 120 and 122, and the processed data is transferred to the memory unit 118 of the main body unit 110. Store or utilize, and also display information via LCD 128.

The operation of the personal communication device 100 according to the present invention having the above configuration will be described in detail with reference to the drawings.

First, when using the DARC service provided from the DARC radio transmitting station 200 such as an FM broadcasting station during the communication using the personal communication device 100 according to the present invention, the keypad installed in the main body unit 110. By operating 116, the selector switch 1 182 of the switching unit 180 is turned ON to provide input data to the CPU A and the CPU B 120 and 122. Accordingly, the CPU A and the CPU B 120 and 122 store the input information in the memory 118 and display the information through the LCD 128.

In more detail, when the CPU B 122 receives the DARC service receiving command from the CPU A 120, the CPU B 122 terminates the ongoing call function and transmits the interrupt signal IRT1 to the switching unit 180. At this time, the switching unit 180 provided with the interrupt signal IRT1 operates (ON) the selector switch 1 182 and transmits the additional data service signal provided from the DARC receiving unit 150 to the CPU 2 122 through a serial communication method. to provide.

Once the serial communication with the CPU 2 122 is initiated, the DARC receiver 150 receives the FM frequency, extracts a band frequency signal of 76 KHz, which is a subcarrier frequency, and detects information corresponding to the data addition service from the signal. It is sent to 2 (122). The CPU 2 122 then sends the data signal provided from the DARC receiving unit 150 to the CPU A 120, which is stored in the memory 118 and displayed on the LCD 128.

Secondly, a case in which the user accesses the Bluetooth serviceable area while receiving the DARC service will be described.

While receiving the DARC data addition service using the personal communication device 100 according to the present invention, when approaching an area within which Bluetooth signal processing is possible, the Bluetooth transceiver 17 receives a specific signal (for example, a signal light). ) Or an indicator (eg, an indicator) for notifying the reception is provided to the state checker 186 built in the switching unit 180.

At this time, when the switching unit 180 receives a specific signal from the Bluetooth transceiver 170, an interrupt signal indicating that the Bluetooth service is received by the CPU 2 122 built into the main unit 110 through the state checker 186. IR2 is sent out.

When the CPU 2 122 receives the interrupt signal IR2 indicating that the Bluetooth service is provided through the state checker 186 of the switching unit 180, the CPU 2 122 notifies the CPU A 120 of the received signal. The CPU A 120 displays on the LCD 128 a message for confirming whether or not to use the Bluetooth service (for example, "Bluetooth serviceable area. Do you want to switch?").

After checking the message displayed on the LCD 128, the user of the personal communication device 100 according to the present invention determines whether to use the Bluetooth service by selection.

If the user using the personal communication device 100 according to the present invention agrees to use the Bluetooth service, the CPU B 122 interrupt signal for operating the selection switch 2 184 by the switching unit 180. (IR3) is generated, and the operation of the selection switch 1 (182) is turned off (OFF) before generating the interrupt signal IR3.

At this time, the CPU 2 122 terminates the operation of the selection switch 1 (182), and then switches the serial communication in progress between the MCU 164 and the selection switch 1 (182) of the DARC decoder unit 160 to the standby state, Thereafter, the selection switch 2 (184) is activated (ON) to activate the communication with the Bluetooth transceiver 170. Accordingly, when communication with the Bluetooth receiver 170 is activated through the selection switch 2 184, data provided through the Bluetooth receiver 170 is automatically stored in the memory 118 through the CPU A 120. At the same time, the contents are displayed on the LCD 128.

In addition, in the personal communication device 100 according to the present invention, the operation of switching to the DARC service during the personal call or to the Bluetooth service even during the DARC service can be arbitrarily operated in the keypad 116 provided in the main body 110. It is possible. Of course, since the personal communication device 100 also has the DARC service and the Bluetooth service holding and using function, the DARC service and the Bluetooth service can be used by the user's selection even during a personal call.

Hereinafter, a specific method for using the DARC service or the Bluetooth service by the user's selection in the personal communication device 100 according to the present invention having the above-described configuration and operation will be described with reference to FIG. 4. .

4 is a flowchart illustrating a method for switching a data radio channel and a Bluetooth function using a personal communication device according to the present invention.

First, it is determined whether a Bluetooth signal is received (step S10). If it is determined in step S10 that the Bluetooth signal has been received, the selection switch 2 is turned ON (step S20), and Bluetooth data is received (step S30).

At this time, the received data is displayed on the LCD together with being stored in the memory unit (step S40).

Next, it is determined whether or not the reception of the Bluetooth data is terminated (step S50), and if it is terminated (Yes), the process returns to the initial state, and if not (No), the process returns to step S10 to continuously determine whether the Bluetooth signal has been received. do.

If no Bluetooth signal is received in the initial step S10 (No), the selection switch 1 is turned on (step S60), and DARC data is received (step S70).

At this time, the received DARC data is displayed on the LCD together with being stored in the memory unit (step S80).

Next, it is determined whether the reception of the DARC data has ended (step S90), and if it has ended (Yes), the process returns to the initial state, and if not (No), the process returns to step S60 to continue receiving the DARC signal.

As described above, preferred embodiments of the present invention are disclosed for purposes of illustration, and those skilled in the art may make various modifications, changes, substitutions, and additions through the spirit and scope of the present invention disclosed in the appended claims.

As described above, according to the present invention, a data communication service provided through a free wireless data channel can be used, and a personal communication device having a wireless data channel and a Bluetooth transmission / reception function capable of data service through a wireless connection between subregions can be obtained. Can be. In addition, according to the data processing method of the present invention, it is possible to receive necessary information while automatically switching between wireless data channel and Bluetooth function.

Claims (4)

In a handheld device equipped with a Bluetooth transceiver that enables wireless communication between subregions, DARC receiving unit 150 for receiving a wireless additional data transmitted from a DARC (DAta Radio Channel) radio transmitting station of the remote location to generate a stable intermediate frequency, detects the generated intermediate frequency and outputs a band frequency of a predetermined band Wow; A DARC decoder 162 for decoding a predetermined band frequency provided from the DARC receiving unit 150, and a microcontroller unit (MCU) 164 for controlling DARC data (Data 1) provided from the DARC decoder 162. A DARC decoder 160 provided; A switching unit (180) for selectively performing Bluetooth data (Data 2) supplied from a Bluetooth server (300) for providing Bluetooth data and DARC data (Data 1) provided from the DARC receiving unit; And A CPU 120 for processing data provided from the switching unit 180, a memory 118 for storing the data, and a liquid crystal display (LCD) for displaying the data processed through the CPU 120; Main body 110; Personal communication device comprising a. The method of claim 1, wherein the switching unit 180 A state checker (186) having an indicator for determining if it is in an area capable of transmitting and receiving Bluetooth; A selection switch 1 182 for passing the data when DARC data Data 1 provided from the DARC receiving unit 150 side is selected; Personal data communication device comprising a selection switch 2 (184) for passing the data when the Bluetooth data (Data 2) provided from the Bluetooth transmission and reception unit 170 is selected. The method of claim 1 The main body unit 110 can implement its own wireless communication, regardless of the use of DARC data (Data 1) and Bluetooth data (Data 2). In the data processing method for selectively performing DARC data that is a wireless additional data service and Bluetooth data capable of wireless communication between small areas, Determining whether a Bluetooth signal has been received (S10); If it is determined in step S10 that a Bluetooth signal is received, the selection switch 2 for receiving the Bluetooth signal is turned on (S20); Receiving the Bluetooth data when the selection switch 2 is turned on in the step S20 (S30); Storing the data received in the step S30 in a memory unit and displaying the same through a liquid crystal display (LCD) (S40); Determining whether or not the Bluetooth data has been received; if yes (Yes), returns to the initial state; if not, returns to step S10 to continuously determine whether a Bluetooth signal is received (S50); If the Bluetooth signal is not received in step S10 (No), turning on the selection switch 1 for receiving DARC data (S60); Receiving DARC data when selection switch 1 is turned on in step S60 (S70); Storing DARC data received from the step S70 in a memory unit and displaying the same through a liquid crystal display (LCD) (S80); And Determining whether the reception of the DARC data has been completed; if yes (Yes), returns to the initial state, and if not (No), returns to step S60 to continuously receive the DARC signal (S90). How to process data.