JP2003069486A - Wireless communication device and control method for the wireless communication device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an excellent wireless communication device that can make wireless communication with other terminals by using both the RF-ID system and the Bluetooth communication. SOLUTION: The wireless communication device is configured at a low cost and comprises common use designed modules by using many of communication functions of both the RF-ID system and the Bluetooth communication for common blocks. The wireless communication device uses the Bluetooth communication functions to transfer data read from an RF-ID tag read by using an RF-ID tag read function to other Bluetooth mount terminals and further to a server on the Internet.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wireless communication device for connecting to another terminal by wireless communication, and more particularly to RF-I.
The present invention relates to a wireless communication device that connects to another terminal by using the D system or Bluetooth communication.

More specifically, the present invention relates to a wireless communication apparatus capable of wirelessly communicating with another terminal by both the RF-ID system and Bluetooth communication, and more particularly, RF-I.
The present invention relates to a low-cost, small-sized shared module wireless communication device that uses many of the communication functions of both the D system and Bluetooth as a common block.

[0003]

2. Description of the Related Art At present, a non-contact type radio identification (RF-ID) system for recognizing by high frequency radio is a system for managing entry / exit, a product identification system for physical distribution, a fee clearing system for a cafeteria, It is used in a number of systems such as unauthorized take-out prevention systems at CDs and software stores.

The RF-ID tag is a device containing unique identification information, and responds to reception of a radio wave of a specific frequency, and a radio wave (RF-ID) of a modulation frequency corresponding to the identification information.
ID) oscillating characteristic, and R on the reader side
It can be specified based on the oscillation frequency of the F-ID tag. Therefore, in the system using the RF-ID, the unique ID written in the wireless (RF-ID) tag can be used to determine the item or the owner.

For example, Japanese Unexamined Patent Publication No. 6-123773 discloses a radio identification device which is manufactured in a small size by packaging an IC chip having transmission / reception and memory functions, a drive source for the chip, and an antenna. ing. According to this wireless identification device, various data relating to articles and the like are transmitted to the receiving means of the IC chip via the antenna,
The output can be stored in the memory, and the data in the memory can be read and supplied to the outside wirelessly via the antenna as needed. Therefore, it is possible to quickly and easily confirm or track the existence or position of an article or the like.

Communication methods between the RF-ID tag and the tag reading / writing device include an electromagnetic coupling method, an electromagnetic induction method,
A radio communication system and the like can be mentioned.

FIG. 3 schematically shows the configuration of the RF-ID system (conventional example).

In the figure, reference numeral 101 is RF-
An ID tag, which is a tag chip 102 and an antenna 10.
It consists of three.

A half-wavelength dipole antenna or the like is used as the antenna 103. Also, the tag chip 10
The reference numeral 2 includes a modulator 110, a rectifier / demodulator 112, and a memory 113.

The radio wave fo transmitted from the RF-ID tag reader 100 is received by the antenna 103 and input to the rectification / demodulation unit 110. Here, the radio wave fo is rectified and converted into a DC power source, and at the same time, a demodulation function is activated by this power source, and it is recognized that it is a read signal for the RF-ID tag 101. The generated power is also supplied to the memory unit 113 and the modulation unit 110.

The memory section 113 reads the ID information stored in advance inside and sends it to the modulation section 110 as transmission data. The modulator 110 is composed of a diode switch 111, and the diode switch 111 repeats on / off operation according to transmission data. That is,
If the data is 1, it is on and the antenna 103 is terminated with antenna impedance (eg, 50 ohms).

At this time, the radio wave from the tag reading device 100 is absorbed. If the data is 0, it will be off,
The diode switch 111 is open, and at the same time, the terminal of the antenna 103 is also open. At this time, the radio wave from the tag reading device 100 is reflected,
It will return to the sender.

Such a communication method is called a "back scatter method". Thus, the RF-ID tag 101
Is an RF-ID tag reader 1 that can read internal information without power supply
It is possible to send to the 00 side.

On the other hand, the tag reading device 100 comprises a tag reading module 104 and an antenna 105 connected to the tag reading module 104, and is used by connecting to a host device 106 such as a portable information terminal.

The host device 106 first issues an instruction to read the RF-ID tag 101 to the host interface unit 1.
The communication control unit 120 is notified via 21.

Upon receiving the tag read command from the communication control unit 120, the baseband processing unit 119 edits the transmission data, filters the data, and then
A baseband signal is sent to the SK modulator 117. The ASK modulation unit 117 determines the frequency fo of the frequency synthesizer 116.
To perform ASK modulation.

The frequency setting of the frequency synthesizer 116 is performed by the communication control unit 120. Generally, RF
-To reduce standing waves and multipaths of signals from the ID tag, the transmission frequency to the RF-ID tag is used by hopping. This hopping instruction also applies to the communication control unit 12.
Performed by 0. The transmission signal subjected to ASK modulation passes through the circulator 114 and the antenna 105.
It is radiated toward the RF-ID tag 101.

As described above, the reflected signal from the RF-ID tag 101 returned by the back scatter method has the same frequency as the signal transmitted from the tag reading device 100. This signal is received by the antenna 105 of the tag reading device 100 and input to the mixer 115.

Since the same local frequency fo as that at the time of transmission is input to the mixer 115, a signal modulated on the RF-ID tag 101 side appears at the output of the mixer 115.

The demodulation section 118 demodulates this signal into 1/0 data and sends it to the baseband processing section 119. The baseband processing unit 119 decodes the data and extracts the data stored in the memory unit 113 in the RF-ID tag 101. This data is stored in the host interface unit 121 according to the instruction from the communication control unit 120.
Is transferred to the host device 106.

As described above, the RF-ID tag reader 100 can read the information in the RF-ID tag 101. RF-ID tag reader 100
Can also be used as an RF-ID tag writing device, and can write designated data on the host device 106 side to the memory unit 113 in the RF-ID tag 101.

On the other hand, introduction of a personal area network (PAN) is being studied in order to construct a small-scale wireless network between a plurality of electronic devices existing around the person to carry out information communication. .

In a short-distance communication system represented by PAN, a wireless communication path using a transmission path other than a wire cable such as radio waves and infrared rays is promising. Because most of the wired cables can be omitted in a work space such as an office, a personal computer (PC)
This is because the terminals such as can be moved relatively easily.

As a typical example of near field communication, "Blue"
“Tooth” can be mentioned. Bluetooth
h is a standard that provides a wireless connection interface applicable to various industries.
uetothoth SIG (Special Interest Group) "
Is responsible for its operation and management.

Bluetooth is 2.4 GHz I
It uses a global radio frequency called the SM (Industry Science Medical) band and has an overall data transmission rate of 1 Mbps, including a 64 kbps synchronous transmission channel available for telephone voice transmission and data transmission. Asynchronous transmission channels are provided. The former synchronous transmission channel is an SCO (Synchronous Conn
ection Oriented Link) transmission method is adopted and applied to line connection. In addition, the latter asynchronous transmission channel
The ACL (Asynchronous Connection Less Link) transmission method is adopted and applied to data transmission by packet exchange.

Bluetooth provides not only a one-to-one cable alternative connection, but also the construction of a one-to-many simple wireless network. For this reason, Bluetooth
A communication function is maintained by giving a control function to one of the devices involved in communication. A device given a control function is called a “master” device, and other devices are called “slave” devices. In addition, a network in which the master and slave device groups are in communication is referred to as a "piconet (piconet)".
onet) ".

In the piconet, "in-piconet synchronization"
All Bluetooth enabled and in communication
The oth device has the same frequency hopping pattern and time slot with respect to the master device. The time slot is a Bluetooth provided by the master device.
It is formed by each slave device based on the oooth clock.

FIG. 4 schematically shows the configuration of a Bluetooth terminal (conventional example).

As shown in the figure, the Bluetooth terminal 200 is installed in a host device 106 such as a portable information terminal.
Antenna 202 and Bluetooth module 201
Is used by adding.

In general, the host device 106 and Bluetooth
The oth module 201 is interfaced with an HCI (Host Controller Interface) defined by the Bluetooth standard. Bluetooth is In
After the connection partner is found by the inquiry procedure, a link is established and communication is performed. However, the operation of the communication after the link is established will be described here.

A transmission request from the host device 106 is sent via the host interface unit 209 to the communication control unit 20.
8 will be notified. The communication control unit 208 is the host device 106.
When a response is returned to the host device 106, the host device 106 starts sending the transmission data. The transmission data is sent to the baseband processing unit 207 via the host interface unit 209.

In the baseband processing section 207, the transmission data is processed into the Bluetooth format, the band is limited by the Gaussian filter, and the frequency synthesizer 205 is FM-modulated by this signal. The frequency synthesizer 205 is set to the frequency of the hopping pattern designated by the communication control unit 208 for each frame.

At the time of transmission, the antenna switch 203 is
The FM modulation signal of the frequency synthesizer 205, which is pushed to the side b by the communication control unit 208, is transmitted to the antenna switch 203.
It is transmitted from the antenna 202 via the.

On the other hand, Bluetooth as a communication partner
A signal from the communication terminal is first received by the antenna 202 by a route opposite to the above. Since the communication control unit 208 knows the reception timing in advance, the antenna switch 203 should be tilted to the a side immediately before.

The signal thus received is sent to the image rejection type mixer 204 via the antenna switch 203. Here, the frequency of the difference between the reception frequency and the reception IF frequency is supplied from the frequency synthesizer 205, the input signal is separately mixed with the in-phase component and the quadrature component of the local signal, and the outputs are combined. It is possible to obtain the received IF signal with the image suppressed. Also here, the frequency setting of the frequency synthesizer 205 is performed by the communication control unit 208.

In the demodulation section 206, the reception IF signal is band-limited by a bandpass filter and then demodulated into reception data by a discriminator detection. The baseband processing unit 207 checks and decomposes the received data, extracts the user data on the transmitting side, and transmits this to the host device 106 via the host interface unit 209. If there is an error in the data, the communication control unit 208
Is notified and the resend procedure is activated. In this way, Bl
The Bluetooth devices exchange data with each other.

By the way, it is conceivable to construct the RF-ID system as the above-mentioned recognition system by adopting a radio wave communication system using microwaves in the same 2.4 GHz band as Bluetooth communication. However, RF
-The ID tag reading module and the Bluetooth module are basically different functions. Therefore, when each is used, it is necessary to equip the module according to the purpose of the host device each time, which is inconvenient. In particular, it is not suitable for an application in which the information read by the RF-ID reading device is transmitted to another terminal or a network by Bluetooth communication.

Of course, RF-ID and Bluetooth
It is conceivable that both modules will be housed in a single housing or device as a single module, or a dedicated terminal will be manufactured, but there are advantages to the user in terms of size and cost. Is difficult to achieve.

[0039]

SUMMARY OF THE INVENTION It is an object of the invention to provide RF.
-To provide an excellent wireless communication device capable of wireless communication with another terminal by both the ID system and the Bluetooth communication.

A further object of the present invention is to provide an excellent wireless communication device in a low-cost, small-sized shared module by sharing many of the communication functions of both the RF-ID system and the Bluetooth as a common block. It is in.

[0041]

The present invention has been made in consideration of the above problems, and the first aspect thereof corresponds to a plurality of wireless communication functions adopting frequency hopping in the same frequency band. Wireless communication device, which includes an antenna, a circulator, a frequency synthesizer, a reception down converter, a transmission up converter, a demodulation unit, a modulation unit, a baseband processing unit, a communication control unit, and an interface unit with an externally connected host device. One or more of the wireless communication functions are shared by each wireless communication function, and the wireless communication function is switched under the control of the host device.

Here, one of the wireless communication functions may be a read / write function of a wireless identification (RF-ID) tag, and the other one may be a Bluetooth communication function.

Therefore, according to the first aspect of the present invention, by sharing many of the communication functions of both the RF-ID system and the Bluetooth as a common block, an excellent wireless device can be formed in a small shared module at low cost. A communication device can be provided.

The communication control unit may activate one wireless communication function to acquire data and then activate the other wireless communication function to transmit the acquired data.
More specifically, the communication control unit is a wireless identification (RF-
ID) RF-I read using the read / write function of the tag
The D-tag data may be transferred to an external device using the Bluetooth communication function. In such a case, the R read using the RF-ID tag reading function
The data read from the F-ID tag is transferred to Bluetooth.
Using the th communication function, it is possible to smoothly transfer to another Bluetooth-equipped terminal or a server on the Internet.

A second aspect of the present invention is a method for controlling a wireless communication device that supports a plurality of wireless communication functions that employ frequency hopping in the same frequency band, wherein the wireless communication device is an antenna or a circulator. , A frequency synthesizer, a reception down converter, a transmission up converter, a demodulation unit, a modulation unit, a baseband processing unit, a communication control unit, and an interface unit with an externally connected host device. A wireless communication function that is shared by the wireless communication functions, and a step of selecting which of the plurality of wireless communication functions to use, and a wireless module selected by the step of selecting the module shared by the plurality of wireless communication functions. Wirelessly communicating the transmission data in conformity with the communication function. A control method of a wireless communication device.

Here, one of the wireless communication functions may be a read / write function of a wireless identification (RF-ID) tag, and the other may be a Bluetooth communication function. Therefore, according to the second aspect of the present invention, by using many of the communication functions of both the RF-ID system and the Bluetooth as a common block, an excellent wireless communication device in a small-sized shared module can be provided at low cost. Can be provided.

A third aspect of the present invention is a method of controlling a wireless communication device that supports a plurality of wireless communication functions that employ frequency hopping in the same frequency band, wherein the wireless communication device is an antenna or a circulator. , A frequency synthesizer, a receiving down converter, a transmitting up converter, a demodulation unit, a modulation unit, a baseband processing unit, a communication control unit, and an interface unit with an externally connected host device for each wireless communication function. A method of controlling a wireless communication device, comprising: sharing, activating one wireless communication function to acquire data, and then activating the other wireless communication function to send the acquired data.

Here, one of the wireless communication functions may be a read / write function of a wireless identification (RF-ID) tag, and the other one may be a Bluetooth communication function.

In such a case, radio identification (RF-ID)
The RF-ID tag data read using the tag read / write function can be smoothly transferred to an external device using the Bluetooth communication function.

Still other objects, features and advantages of the present invention are as follows.
It will be clarified by a more detailed description based on embodiments of the present invention described below and the accompanying drawings.

[0051]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below in detail with reference to the drawings.

The wireless communication device according to the present invention has an RF-ID.
The tag reading function and the Bluetooth communication function can be shared.

FIG. 1 schematically shows the configuration of a radio communication device 300 according to an embodiment of the present invention. As shown in the figure, the wireless communication device 300 is an RF-ID tag reading device and a Bluetooth communication terminal,
It is composed of a host device 106 such as a portable information terminal, an RF-ID tag reading / Bluetooth communication shared module 301, and a shared antenna 302 connected thereto. A CPU (Central Processing Unit) 311 as a main controller is installed in the host device 106, and controls the overall operation of the host device 106.

The present inventor has derived that the RF-ID tag reading module and the Bluetooth communication module have the following common points.

(1) The 2.4 GHz band is used. (2) Use frequency hopping. (3) An interface with the host device is required.

Therefore, by treating the components of the RF-ID tag reading module and the Bluetooth module as a common block as shown below, the radio communication device 300 according to the present embodiment is constructed.

(1) Set the antenna of the radio communication device 300 to R
F-ID tag reading module and Bluetooth
Also serves as an antenna for both h modules. (2) The circulator 303 of the wireless communication device 300 is
Circulator of RF-ID tag reading module,
It is also used as an alternative to the antenna switch of the Bluetooth module. (3) Set the quadrature detector 304 of the wireless communication device 300 to RF
-ID tag reading module and Bluetooth
It is also used as an alternative to the receiving mixer of both modules. (4) I / O the quadrature detector 305 of the wireless communication device 300
Adopting Q baseband modulation method, ASK modulator of RF-ID tag reading module and Bluetooth
This is also used as an alternative to the FM modulation of the frequency synthesizer of the th communication module. (5) The hopping frequency synthesizer 306 of the wireless communication device 300 also serves as a frequency synthesizer for both the RF-ID tag reading module and the Bluetooth communication module. (6) The demodulation unit 307 of the wireless communication device 300 uses the baseband demodulation method and also serves as a part of the demodulation units of both the RF-ID tag reading module and the Bluetooth module. (7) Baseband processing unit 308 of wireless communication apparatus 300
Commonly uses the interface with other blocks,
Since the processes have few common points, they are implemented independently. (8) The communication control unit 309 of the wireless communication device 300 uses the CP
The U and memory related hardware and the interface of other blocks are commonly used. In addition, the parts related to software are implemented independently, except for frequency hopping processing. (9) The host interface unit of the wireless communication device 300 includes an RF-ID tag reading module and a Blue.
It is also used as the tooth module.

The operation characteristics of radio communication apparatus 300 will be described below.

First, a case where the wireless communication device 300 operates as an RF-ID tag reading device will be described.

The host device 106 first issues an instruction to read the RF-ID tag 101 to the host interface unit 3.
Notify the communication control unit 309 via 10.

When the baseband processing unit 308 receives the read command of the RF-ID tag 101 from the communication control unit 309, the transmission data is edited and filtered, and then the quadrature modulation unit 305 receives only the I channel. Send a baseband signal. The quadrature modulator 305 performs ASK modulation at the frequency fo of the frequency synthesizer 306.

The frequency setting of the frequency synthesizer 306 is performed by the communication control unit 309. Generally, RF-I
The transmission frequency to the RF-ID tag is used by hopping in order to reduce the standing wave and multipath of the signal from the D tag. This hopping instruction also applies to the communication control unit 309.
Be done from.

The transmission signal subjected to ASK modulation passes through the circulator 303 and is transmitted from the antenna 302 to RF.
-It is radiated toward the ID tag 101.

RF-in the back scatter system (described above)
The reflected signal returned from the ID tag 101 is R
It has the same frequency as the signal transmitted from the F-ID tag reader. This signal is received by the antenna 302 of the wireless communication device 300 as the RF-ID reading device,
It is input to the quadrature detector 304. Since the same local frequency fo as that at the time of transmission is input to the quadrature detector 304, a signal modulated on the RF-ID tag 101 side appears at the output.

The communication control unit 309 gives the demodulation unit 307 an instruction in advance to operate as the RF-ID reading function. In the demodulation unit 307, this I /
After demodulating 1/0 data from one or both of the Q signals, it is sent to the baseband processing unit 308.

The baseband processing unit 308 decodes the data, and the memory unit 113 in the RF-ID tag 101.
Retrieve the data stored in. Then, this data is transferred from the host interface unit 310 to the host device 106 according to the instruction of the communication control unit 309.

As described above, the RF-ID tag reading device 100 can read the information in the RF-ID tag 101. RF-ID tag reader 100
Can also be used as an RF-ID tag writing device in general (described above), and the host device 106.
Side designated data is stored in the memory unit 1 in the RF-ID tag 101.
13 can be written.

Next, the wireless communication device 300 sets the Bluetooth
A case of operating as an oooth communication module will be described.

In Bluetooth communication, Inqui
After the connection partner is found by the ry (query) procedure, a link is established and communication is performed. In the following, for simplification of description, the operation will be described for communication after link establishment.

A transmission request from the host device 106 is transmitted via the host interface unit 310 to the communication control unit 309.
Will be notified. When the communication control unit 309 returns a response to the host device 106, the host device 106 starts sending transmission data. The transmission data is sent to the baseband processing unit 308 via the host interface unit 310.

As transmission data, RF is preceded by RF.
RF-ID tag 1 already read by the tag reading function
It is also possible to handle the information in the memory unit 113 of 01.

In the baseband processing section 308, the Blue
The data is processed into the tooth format, the data is divided into I / Q, the band is limited by the Gauss filter, and the I / Q signal is input to the quadrature detection unit 305. The quadrature detector 305 includes a frequency synthesizer 306.
Is input as the local frequency, and here, the modulation equivalent to the FM modulation of the conventional example can be realized.

The frequency synthesizer 306 is set to the frequency of the hopping pattern designated by the communication control unit 309 for each frame. Although the antenna switch is provided in the [Prior Art] section, it should be understood that the circulator is used as a substitute in this embodiment.

The output of the quadrature modulator 305 is transmitted from the antenna 302 via the circulator 303.

The signal from the Bluetooth terminal, which is the communication partner, is transmitted by the route opposite to the above. That is, when first received by the antenna 302, the received signal passes through the circulator 303 and the quadrature detection unit 30.
Sent to 4.

Here, the same frequency as the reception frequency is supplied from the frequency synthesizer 306, the input signal is multiplied by two in-phase components and quadrature components of the local signal, and I
Obtain a baseband signal of / Q. Also here, the frequency setting of the frequency synthesizer 306 is performed by the communication control unit 309. The demodulation unit 307 demodulates the I / Q baseband signal into received data after band limiting with a low-pass filter.

The baseband processing unit 308 checks and decomposes the received data, extracts the user data on the transmitting side, and extracts it from the host interface unit 310.
It is sent to the host device 106 via. If there is an error in the data, the communication control unit 309 is notified and the resending procedure is activated. In this way, Bluetooth devices exchange data with each other.

In this way, both the functions of reading the RF-ID tag and Bluetooth communication can be independently operated by using the hardware having many common parts.

FIG. 2 shows the RF-ID read / write function and Bl.
An application example of an apparatus in which a Bluetooth function is combined is shown.

In the figure, reference numeral 400 is RF-I.
D is a device for both reading and writing and Bluetooth communication, reference numeral 401 is an RF-ID tag, reference numeral 402 is a mobile phone with a built-in Bluetooth communication module 403, reference numeral 404 is a mobile communication network, reference numeral 405 is an Internet network, and reference numeral 406 is a server on the Internet 405. Also, RF-ID reading and Bluetooth
The control of the application of the communication combined-use apparatus 400 is shown in FIG.
The CPU 311 on the host device 106 side shown in FIG.

First, the combined-use device 400 uses the RF-ID reading function to read the data in the RF-ID tag 401.

After that, the dual-purpose device 400 is changed to the Bluetooth.
Bluetooth in the mobile phone 402 using the th communication function
Connect to the oooth communication module 403 to connect the mobile phone 4
02 to make a dial-up connection, and the mobile communication network 40
4 and the Internet network 405 to transfer the tag data to the target server.

For example, by inserting a product number in the tag data and searching the database in the server 406 using this number, the detailed data of the product number can be retrieved, and the route reverse to the above. Combined device 40
Can be transferred to 0.

The combined device 400 according to the present embodiment.
Can also operate as an RF-ID tag writing device, so that the data transferred from the server 406 can be read by R
It is also possible to write in the memory in the F-ID tag 401.

[Supplement] The present invention has been described in detail with reference to the specific embodiments. However, it is obvious that those skilled in the art can modify or substitute the embodiments without departing from the scope of the present invention. That is, the present invention has been disclosed in the form of exemplification, and the contents of this specification should not be construed in a limited manner. In order to determine the gist of the present invention, the section of the claims described at the beginning should be taken into consideration.

[0086]

As described above in detail, according to the present invention,
It is possible to provide an excellent wireless communication device capable of wireless communication with another terminal by both the RF-ID system and the Bluetooth communication.

Further, according to the present invention, by providing many of the communication functions of both the RF-ID system and the Bluetooth as a common block, it is possible to provide an excellent wireless communication device in a small shared module at low cost. You can

Further, according to the present invention, the data read from the RF-ID tag read by using the RF-ID tag reading function is used for other Bluetooth-equipped terminals, and further on the Internet, by using the Bluetooth communication function. It is possible to provide a module suitable for an application that transfers to a server.

The dual-purpose communication module according to the present invention is Blu
By mounting the device as an ethoth module on various devices, each device can be equipped with the RF-ID tag reading function easily and at low cost. Of course,
It does not cause enlargement of the device.

[Brief description of drawings]

FIG. 1 is a wireless communication device 300 according to an embodiment of the present invention.
It is the figure which showed the structure of.

FIG. 2 RF-ID read / write function and Bluetooth
It is a figure for demonstrating the application example of the apparatus which combined the function.

FIG. 3 is a diagram schematically showing a configuration (conventional example) of an RF-ID system.

FIG. 4 is a diagram schematically showing a configuration (conventional example) of a Bluetooth terminal.

[Explanation of symbols]

100 ... RF-ID tag reader 101 ... RF-ID tag, 102 ... Tag chip 103 ... Antenna, 104 ... Tag reading module 105 ... Antenna, 106 ... Host device 110 ... Modulator, 111 ... Diode switch 112 ... Rectification Demodulation unit 113 memory unit 114 circulator 115 mixer 116 frequency synthesizer 117 ASK modulation unit 118 demodulation unit 119 baseband processing unit 120 communication control unit 121 host interface unit 200 Bluetooth Communication terminal 201 ... BLuetooth module 202 ... Antenna, 203 ... Antenna switch 204 ... Mixer, 205 ... Frequency synthesizer 206 ... Demodulation section, 207 ... Baseband processing section 208 ... Communication control section 209 ... Host interface Over scan portion 300 ... radio communication apparatus 301 ... RF-ID tag reader and Bluetoot
h Communication / use module 302 ... Antenna, 303 ... Circulator 304, 305 ... Quadrature detector 306 ... Hopping frequency synthesizer 307 ... Demodulation section, 308 ... Baseband processing section 309 ... Communication control section, 310 ... Host interface section 311 ... CPU 400 ... RF-ID read / write and Bluetooth communication device 401 ... RF-ID tag 402 ... Mobile phone 403 ... Bluetooth communication module 404 ... Mobile communication network 405 ... Internet network 406 ... Server

Claims (7)

[Claims] 1. A wireless communication device that supports a plurality of wireless communication functions that employ frequency hopping in the same frequency band, and includes an antenna, a circulator, a frequency synthesizer, a down converter for reception, a up converter for transmission, a demodulation section, and a modulation. Unit, a baseband processing unit, a communication control unit, and an interface unit with an externally connected host device are shared by each wireless communication function, and the wireless communication function is switched under the control of the host device. Wireless communication device. 2. One of the wireless communication functions is radio identification (RF).
-ID) tag read / write function, the other one is Blu
The wireless communication device according to claim 1, wherein the wireless communication device has an Ethernet communication function. 3. The communication control unit activates one wireless communication function to acquire data, and then activates the other wireless communication function to transmit the acquired data. The wireless communication device according to. 4. One of the wireless communication functions is radio identification (RF).
-ID) tag read / write function, the other one is Blu
an Ethernet communication function, wherein the communication control unit transfers the RF-ID tag data read using the read / write function of a wireless identification (RF-ID) tag to an external device using the Bluetooth communication function. The wireless communication device according to claim 1, wherein the wireless communication device is a wireless communication device. 5. A method for controlling a wireless communication device supporting a plurality of wireless communication functions that employ frequency hopping in the same frequency band, wherein the wireless communication device comprises an antenna, a circulator, a frequency synthesizer, a down converter for reception, Transmission up-converter, demodulator, modulator, baseband processor,
One or more modules of a communication control unit and an interface unit with an externally connected host device are shared by the plurality of wireless communication functions, and a step of selecting which of the plurality of wireless communication functions is used. Wirelessly communicating the transmission data by adapting the module shared by the plurality of wireless communication functions to the wireless communication function selected in the selecting step. Communication device control method. 6. A method of controlling a wireless communication device supporting a plurality of wireless communication functions that employ frequency hopping in the same frequency band, wherein the wireless communication device comprises an antenna, a circulator, a frequency synthesizer, a down converter for reception, Transmission up-converter, demodulator, modulator, baseband processor,
After sharing one or more of the communication control unit and the interface unit with the externally connected host device by each wireless communication function and activating one wireless communication function to acquire data,
A method for controlling a wireless communication device, comprising activating another wireless communication function and transmitting the acquired data. 7. One of the wireless communication functions is radio identification (RF).
-ID) tag read / write function, the other one is Blu
It is an Bluetooth communication function, and the RF-ID tag data read using the read / write function of the wireless identification (RF-ID) tag is used for Bluetooth.
The method of controlling a wireless communication device according to claim 6, wherein the transfer is performed to an external device by using a communication function.