JPH10105660A - Radio communication medium, radio communication medium housing case and radio communication system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make different a communication frequency and a communication system by changing the communication frequency by changing the inductance of an antenna coil for radio wave transmission/reception, and processing data to be transmitted/received through an antenna. SOLUTION: A radio card 101 is provided with a changeover switch 110 for changing the communication frequency and the inside of the radio card 101 is provided with a coil-shaped antenna coil 120 for radio wave transmission/ reception, IC circuit 130 as a data processing means for processing the data to be transmitted/received through the antenna coil 120, and member 140. Then, the overlapping amount of these member 140 and antenna coil 120 is changed and the inductance of the antenna coil 120 is changed by applying the influence of this member 140. The frequency of the antenna coil 120 is changed by the change of this inductance. Thus, communication is enabled by one radio card 101 while making different the communication system and the communication frequency.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a portable wireless communication medium having a wireless communication function and a wireless communication medium storage case for storing such a wireless communication medium. The present invention also relates to a wireless communication system using the wireless communication medium and the wireless communication medium storage case.

[0002]

2. Description of the Related Art In recent years, a batteryless wireless card has been developed as a formable wireless communication medium having a wireless communication function.
It is being put to practical use. In such a wireless communication system using a wireless card, data is transmitted / received to / from the wireless card using a wireless reader / writer at a predetermined frequency and a predetermined communication method. In addition, such wireless cards tend to be developed in such a manner that circuits other than the antenna coil are integrated into a one-chip IC in order to reduce costs, and external components are reduced as much as possible.

[0003] With the spread of such wireless cards,
It is expected that a plurality of wireless communication systems will appear in society in general. In a wireless communication system, a communication frequency and a communication method are determined according to a use environment. For example,
Where there is relatively much noise, a spread spectrum communication method is adopted, or when the communication distance is relatively long, a high frequency is adopted.

[0004]

However, wireless cards have almost no compatibility, and in order to use a plurality of wireless communication systems having different communication frequencies and communication systems, it is necessary to form a wireless card for each system. Was very inconvenient.

An object of the present invention has been made in view of the above-mentioned circumstances, and is used in a plurality of wireless communication systems having different communication frequencies or a plurality of wireless communication systems having different communication frequencies and communication systems. It is to provide a possible wireless communication medium.

[0006]

SUMMARY OF THE INVENTION The present invention has been made based on the above-mentioned problems. According to the present invention, a coil-shaped antenna for transmitting and receiving radio waves and an inductance of the coil are changed to thereby achieve the above object. A wireless communication medium is provided, comprising: frequency variable means for changing a communication frequency of an antenna; and data processing means for processing data transmitted and received via the antenna.

According to the present invention, the coil-shaped antenna for transmitting and receiving radio waves, the conductive member, and the conductive member are moved to change the inductance of the coil due to the effect of the conductive member. Thus, there is provided a wireless communication medium comprising: a member moving unit that changes a communication frequency of the antenna; and a data processing unit that processes data transmitted and received via the antenna.

Further, according to the present invention, by moving the coil-shaped antenna for transmitting and receiving radio waves, the conductive member, and the conductive member, the inductance of the coil differs from each other due to the influence of the conductive member. Member moving means for changing the communication frequency of the antenna to the first or second communication frequency different from each other by changing the communication frequency to the first or second inductance, and data for processing data transmitted and received via the antenna A wireless communication medium having processing means, a first wireless communication device for performing wireless communication with the wireless communication medium at the first communication frequency, and performing wireless communication with the wireless communication medium at the second communication frequency And a second wireless communication device.

Still further, according to the present invention, a wireless communication medium having a coiled antenna for transmitting and receiving radio waves and data processing means for processing data transmitted and received via the antenna is housed. The present invention further provides a wireless communication medium storage case, characterized by comprising frequency variable means for changing the communication frequency of the antenna by changing the inductance of the coil of the stored wireless communication medium.

Still further, according to the present invention, a radio communication medium having a coil antenna for transmitting and receiving radio waves and a transmission / reception data processing means for processing data transmitted and received via the antenna is housed. A conductive member, and a member moving unit that changes the inductance of the coil of the wireless communication medium accommodated by the effect of the conductive member by moving the conductive member, thereby changing the communication frequency of the antenna. , A wireless communication medium storage case is provided.

Still further, according to the present invention, a radio communication medium having a coiled antenna for transmitting and receiving radio waves, and transmission / reception data processing means for processing data transmitted / received via the antenna, and the radio communication medium A conductive member, and by moving the conductive member, the inductance of the coil of the wireless communication medium stored under the influence of the conductive member is different from the first or second. A wireless communication medium storage case having member moving means for changing the communication frequency of the antenna to a first or second communication frequency different from each other by changing the inductance to an inductance; and the wireless communication medium and the first communication frequency. A first wireless communication device that performs wireless communication by using a wireless communication medium, and a second wireless device that performs wireless communication by using the wireless communication medium and the second communication frequency. Wireless communication system, characterized in that a signal device, is provided.

Still further, according to the present invention, the housing is used by being housed in a storage case provided with a member at a predetermined position, and when housed in the storage case, the inductance changes due to the influence of the member. A radio communication medium comprising: a coil-shaped antenna for transmitting and receiving radio waves provided so that a communication frequency is changed; and data processing means for processing data transmitted and received via the antenna. Provided.

Still further, according to the present invention, it is used by being stored in a storage case provided with a conductive member at a predetermined position, and according to a storage state when stored in the storage case. A coil-shaped antenna for radio wave transmission and reception provided so that the inductance changes due to the influence of the conductive member and the communication frequency changes, and data processing means for processing data transmitted and received via the antenna are provided. A wireless communication medium is provided.

Still further, according to the present invention, it is possible to store and use the storage case in which the conductive member is fixed at a predetermined position, and the storage member is stored in the storage case in the first storage state. Thus, when the positional relationship with the conductive member becomes the first positional relationship, the inductance becomes the first inductance due to the influence of the conductive member, so that the communication frequency becomes the first communication frequency, When stored in the storage case in a second storage state different from the first storage state, a positional relationship with the conductive member becomes a second positional relationship different from the first positional relationship. Due to the influence of the conductive member, the inductance becomes a second inductance different from the first inductance, and the communication frequency differs from the first communication frequency. A wireless communication medium is provided, comprising: a coil-shaped antenna for wireless communication provided to have a frequency; and a data processing means for processing data transmitted and received via the antenna. .

Further, according to the present invention, a storage case in which a conductive member is fixed at a predetermined position, and a storage case that can be used by being stored in the storage case, wherein the storage case has a first storage state. When the positional relationship with the conductive member becomes the first positional relationship by being accommodated in the communication member, the inductance becomes the first inductance due to the effect of the conductive member, and the communication frequency becomes the first communication frequency. And stored in the storage case in a second storage state different from the first storage state, so that a positional relationship with the conductive member becomes a second positional relationship different from the first positional relationship. When the communication frequency is different from the first communication frequency, the inductance becomes a second inductance different from the first inductance due to the influence of the conductive member. A wireless communication medium having a coiled antenna for wireless communication provided to have a second communication frequency, and data processing means for processing data transmitted and received via the antenna; A first wireless communication device that performs wireless communication at the first communication frequency; and a second wireless communication device that performs wireless communication at the second communication frequency with the wireless communication medium. A wireless communication system is provided.

Still further, according to the present invention, a coil-shaped antenna for transmitting and receiving radio waves, and a first data for processing data transmitted and received at a first communication frequency and a first communication method via the antenna. Processing means, and second data processing means for processing data transmitted and received via the antenna at a second communication frequency different from the first communication frequency and a second communication method different from the first communication method And connecting the antenna to the first data processing means when the inductance of the antenna is a first inductance, and connecting the antenna to the first when the inductance of the antenna is a second inductance different from the first inductance. A connection switching means connected to the second data processing means, a conductive member, and the conductive member by moving the conductive member. The inductance of the coil of the antenna is changed to the first or second inductance under the influence of the material, and the communication frequency of the antenna is changed to the first or second communication frequency, respectively, and the connection by the connection switching means is changed. Member moving means for performing switching,
A wireless communication medium is provided.

Still further, according to the present invention, a coil-shaped antenna for transmitting / receiving a radio wave, and a first data for processing data transmitted / received at a first communication frequency and a first communication method via the antenna. Processing means, and second data processing means for processing data transmitted and received via the antenna at a second communication frequency different from the first communication frequency and a second communication method different from the first communication method And connecting the antenna to the first data processing means when the inductance of the antenna is a first inductance, and connecting the antenna to the first when the inductance of the antenna is a second inductance different from the first inductance. A connection switching means connected to the second data processing means, a conductive member, and the conductive member by moving the conductive member. The inductance of the coil of the antenna is changed to the first or second inductance under the influence of the material, and the communication frequency of the antenna is changed to the first or second communication frequency, respectively, and the connection by the connection switching means is changed. A wireless communication medium having member moving means for executing switching, a first wireless communication apparatus for performing wireless communication with the wireless communication medium at the first communication frequency and the first communication method, and the wireless communication medium And a second wireless communication that performs wireless communication with the second communication frequency and the first communication method.
And a wireless communication device.

Still further, according to the present invention, a coil-shaped antenna for transmitting and receiving radio waves, and a first data for processing data transmitted and received via the antenna at a first communication frequency and a first communication method. Processing means, and second data processing means for processing data transmitted and received via the antenna at a second communication frequency different from the first communication frequency and a second communication method different from the first communication method And connecting the antenna to the first data processing means when the inductance of the antenna is a first inductance, and connecting the antenna to the first when the inductance of the antenna is a second inductance different from the first inductance. A wireless communication medium having connection switching means connected to the second data processing means. By moving the sexual member,
The inductance of the coil of the antenna is changed to the first or second inductance by the influence of the conductive member, and the communication frequency of the antenna is changed to the first or second, respectively.
Alternatively, there is provided a wireless communication medium storage case, comprising: a member moving unit that changes the communication frequency to the second communication frequency and executes connection switching by the connection switching unit.

Still further, according to the present invention, a coil-shaped antenna for transmitting / receiving a radio wave, and a first data for processing data transmitted / received at a first communication frequency and a first communication method via the antenna. Processing means, and second data processing means for processing data transmitted and received via the antenna at a second communication frequency different from the first communication frequency and a second communication method different from the first communication method And connecting the antenna to the first data processing means when the inductance of the antenna is a first inductance, and connecting the antenna to the first when the inductance of the antenna is a second inductance different from the first inductance. A wireless communication medium having connection switching means connected to the second data processing means; and a wireless communication medium accommodating the wireless communication medium. By moving the conductive member and the conductive member, the inductance of the coil of the antenna is changed to the first or second inductance due to the influence of the conductive member, and the communication frequency of the antenna is changed to the first or second inductance, respectively. A wireless communication medium storage case having a member moving means for changing the communication frequency to the first or second communication frequency and executing the connection switching by the connection switching means; and the wireless communication medium and the first communication frequency and the first communication frequency. A first wireless communication device that performs wireless communication using the first communication method, and a second wireless communication device that performs wireless communication using the second communication frequency and the first communication method. A wireless communication system is provided.

Still further, according to the present invention, it is used by being stored in a storage case in which a conductive member is fixed at a predetermined position, and is stored in the storage case in the first storage state. The positional relationship with the conductive member is the first.
In this case, the inductance becomes the first inductance due to the influence of the conductive member, the communication frequency becomes the first communication frequency, and the storage case has a second communication state different from the first storage state. When the positional relationship with the conductive member becomes a second positional relationship different from the first positional relationship by being stored in the stored state, the inductance is reduced by the influence of the conductive member. A coil-shaped antenna for wireless communication provided such that the communication frequency becomes a second communication frequency different from the first communication frequency by providing a second inductance different from the first inductance; Data processing means for processing data transmitted and received by the first communication method and the communication frequency of the first communication frequency; Second data processing means for processing data transmitted / received in a second communication frequency different from the first communication method and a second communication method different from the first communication method; and when the inductance of the antenna is the first inductance, To the first data processing means, and connection switching means for connecting the antenna to the second data processing means when the inductance of the antenna is the second inductance. A wireless communication medium is provided.

Still further, according to the present invention, a storage case in which a conductive member is fixed at a predetermined position, and a storage case that can be used by being stored in the storage case, wherein the storage case has a first storage state. When the positional relationship with the conductive member becomes the first positional relationship by being accommodated in the communication member, the inductance becomes the first inductance due to the effect of the conductive member, and the communication frequency becomes the first communication frequency. And stored in the storage case in a second storage state different from the first storage state, so that a positional relationship with the conductive member becomes a second positional relationship different from the first positional relationship. When the communication frequency is different from the first communication frequency, the inductance becomes a second inductance different from the first inductance due to the influence of the conductive member. A coil antenna for wireless communication provided to have a second communication frequency, and first data for processing data transmitted and received at a first communication frequency and a first communication method via the antenna. Processing means, and a second communication frequency different from the first communication frequency via the antenna.
A second data processing means for processing data transmitted / received by a second communication method different from the first communication method and a communication frequency of the first communication method; and when the inductance of the antenna is the first inductance, the antenna is connected to the first communication system. A wireless communication medium having connection switching means for connecting the antenna to the second data processing means when the inductance of the antenna is the second inductance; and A first wireless communication device that performs wireless communication at a first communication frequency and the first communication method, and a second wireless communication device that performs wireless communication with the wireless communication medium at the second communication frequency and the first communication method. And a wireless communication device.

[0022]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, first to sixth embodiments of the present invention will be described with reference to the drawings. In the first embodiment, a wireless communication medium capable of supporting different communication frequencies (the same communication scheme) and a wireless communication system using the wireless communication medium will be described. In the second and third embodiments, a wireless communication medium using a wireless communication medium storage case capable of supporting different communication frequencies (the same communication scheme) and a wireless communication system using the wireless communication medium storage case will be described. I do. In the fourth embodiment, as a modification of the first embodiment, a wireless communication medium that can support different communication frequencies and different communication schemes, and a wireless communication system using the wireless communication medium will be described.
In the fifth and sixth embodiments, as a modification of the second and third embodiments, respectively, a wireless communication medium using a wireless communication medium storage case capable of supporting different communication frequencies and different communication methods, and this wireless communication A wireless communication system using a medium storage case will be described.

First, a first embodiment will be described with reference to FIGS. FIG. 1 is a diagram schematically showing a wireless card as a wireless communication medium according to a first embodiment of the present invention, and FIG. 2 is a diagram schematically showing a wireless communication system using the wireless communication medium shown in FIG. It is.

As shown in FIG. 1, a wireless card 101 as a wireless communication medium is provided with a changeover switch 110 for switching a communication frequency. Further, inside the wireless card 101, a coil-shaped antenna coil 120 for transmitting and receiving radio waves,
A C circuit 130, a member 140, and the like are provided.

The member 140 is, for example, a conductive member such as a metal plate. This member 140 is connected to the changeover switch 110
Is provided so as to move on the antenna coil 120 by switching. As the member 140 moves on the antenna coil 120, the amount of overlap between the member 140 and the antenna coil 120 changes, and this member 140
Under the influence of 0, the inductance of the antenna coil 120 changes and the frequency of the antenna coil 120 changes. That is, the wireless card 101 is
10, the communication frequency can be switched.

Here, an example of use of the wireless card 101 will be described. For example, suppose that a XX bus company and a △△ railroad company use wireless cards for entrance / exit management (tickets). ○○ The bus has been used communication frequency f _1, the △△ railways and communication frequency f ₂ is used. At this time, it is assumed that both communication systems are the same. The radio card 101 described above is directed to one in which the changeover switch 110 can switch the communication frequency f ₁ or f _2. That is, when moving the selector switch 110 to S _1, the inductance of the antenna coil 120 is L ₁ becomes communication frequency is f _1.
Moving the switch 110 to S _2, the inductance of the antenna coil 120 is L ₂ becomes communication frequency is f _2. In other words, the wireless card 101, the changeover switch 110 when utilizing ○○ bus used to move the S _1, when utilizing △△ railway can be used to move the switch 110 to S ₂ . In addition,
As described above, since it is assumed that the same communication method is used for the XX bus and the △△ railway, the wireless card 1
The data processing on the 01 side is performed by the IC circuit 130 in either case.
Can be done with

Next, referring to FIG.
Communication system using the wireless communication device 1 and the wireless card 1
01 will be described in detail. what if,
The wireless card reader 300a shown in FIG.
The writer, 300b is a wireless card reader / writer on the railway side. That is, the wireless card reader / writer 300
a is read out from the wireless card of the communication frequency f ₁ ,
It performs processing of read data, transmission of a write (store) command, transmission of write data, and the like.
The radio card reader · writer 300b are radio card communication frequency f _2, read processing of data read, transmission of write (storage) command, and performs such transmission of the write data.

Such a wireless card reader / writer 30
0 The (300a and 300b), an antenna 301 for transmitting and receiving radio waves (301a and 301b), the tuning circuit 3 for extracting a carrier wave of a predetermined frequency (f ₁ or f ₂₎
02 (302a and 302b), a transmission circuit 303 (303a and 303) for modulating and outputting transmission data.
b) a receiving circuit 304 (3) for demodulating the received data
04a and 304b), a data processing unit 305 (305a) for controlling the function of the wireless card reader / writer 300.
And 305b), the host computer 310 (310a
And the interface (I /
F) 306 (306a and 306b). Further, various system control devices 320 (320a and 320b) for controlling the system are connected to the host computer 310. The tuning circuit 131 is a circuit in which a coil (antenna coil 120) and a capacitor C are connected in parallel, and the communication frequency of the antenna is determined by the inductance of the antenna coil 120 and the capacitor C.

On the other hand, the IC circuit 130 of the wireless card 101
A tuning circuit 131 for extracting a carrier wave (f ₁ or f ₂ ) of a predetermined frequency, a power supply circuit 132 for generating power to be consumed in the wireless card 101 from a signal extracted by the tuning circuit 131, A clock extraction circuit 133 that generates a clock necessary for operating each circuit based on a signal extracted by the circuit 131, a reception circuit 134 that demodulates received data, and a transmission circuit 135 that modulates and outputs transmission data. And a data processing unit 136 for controlling functions of the wireless card, a nonvolatile memory 137, and the like.

Here, the wireless communication between the wireless card 101 and the wireless card reader / writer 300 will be described.
First, reading of data from the wireless card 101 will be described. When reading, a wireless card reader
A read command is generated by the data processing unit 305 of the writer 300, and the read command is sent to the transmission circuit 303. The transmission circuit 303 modulates this command by an arbitrary modulation method and amplifies the modulated signal to an intensity sufficient to emit the modulated signal. The amplified signal is supplied to the antenna 301 via the tuning circuit 302 and is radiated to space. Signal communication frequency f ₁ emitted from the radio card reader · writer 300a is received by the wireless card 101 is switched to ○○ bus corresponding. Signal communication frequency f ₂ emitted from the radio card reader · writer 300b is received by the wireless card 101 is switched to △△ train corresponding.

The antenna coil 120 of the wireless card 101
The received signal received via the tuning circuit 131 is demodulated by the receiving circuit 134, sent to the data processing unit 136, and subjected to command analysis. As a result, when it is determined that the content of the command is read, the data processing unit 13
6, the memory 137 storing the card data
, Predetermined data is read out, and the predetermined data is sent to the transmission circuit 135. In the transmission circuit 135, the predetermined data is modulated by a predetermined modulation method and supplied to the tuning circuit 131. The signal supplied to the tuning circuit 131 is radiated to the space via the antenna 120. ○○ signal communication frequency f ₁ emitted from the wireless card 101 is switched to the bus-compatible, the radio card reader · writer 300a
Received at. △△ The signal of the communication frequency f ₂ radiated from the wireless card 101 switched for railway is
It is received by the wireless card reader / writer 300b.

The received signal received via the antenna 301 and the tuning circuit 302 of the wireless card reader / writer 300 is amplified, sent to the receiving circuit 304, and demodulated. The demodulated signal is sent to the data processing unit 305, where predetermined data processing is performed.

Next, writing of data to the wireless card 101 will be described. At the time of writing, a write command and write data are generated by the data processing unit 305 of the wireless card reader / writer 300, and the write command and write data are sent to the transmission circuit 303. In the transmission circuit 303, the write command and the write data are modulated by an arbitrary modulation method, and the modulated signal is amplified to an intensity sufficient to radiate. The amplified signal is supplied to the antenna 301 via the tuning circuit 302 and is radiated to space. Signal communication frequency f ₁ emitted from the radio card reader · writer 300a is received by the wireless card 101 is switched to ○○ bus corresponding. Wireless card reader / writer 300
signal communication frequency f ₂ emitted from the b is received by the wireless card 101 is switched to △△ train corresponding.

The antenna coil 120 of the wireless card 101
The received signal received via the tuning circuit 131 is demodulated by the receiving circuit 134, sent to the data processing unit 136, and subjected to command analysis. As a result, when it is determined that the content of the command is a write, the data processing unit 136
Thus, the write data sent after the write command is written to a predetermined address of the memory 306.

As described above, the wireless card 101 of the present invention includes the member 140 as the communication frequency variable means for switching the communication frequency and the changeover switch 110. for example it may correspond to f ₁ and f ₂₎ system. Thus, even when using a plurality of wireless communication systems having different communication frequencies, it is not necessary to have a plurality of wireless cards, and the burden on the user can be reduced.

Next, a second embodiment will be described with reference to FIGS. FIG. 3 is a view schematically showing a wireless communication medium according to a second embodiment of the present invention and a wireless communication medium storage case for storing the wireless communication medium.
FIG. 4 is a diagram schematically showing a wireless communication system using the wireless communication medium and the wireless communication medium storage case shown in FIG. 3.

As shown in FIG. 3, the storage case 201 for storing the wireless card 102 as a wireless communication medium is provided with a changeover switch 210 for switching the communication frequency of the stored wireless card 102. Further, a member 241 is provided in the storage case 201. On the other hand, the wireless card 10 stored in the storage case 201
Inside 2, a coil-shaped antenna coil 120 for transmitting and receiving radio waves, an IC circuit 130 as data processing means for processing data transmitted and received via the antenna coil 120, and the like are provided.

The member 241 is a conductive member such as a metal plate. The member 241 provided in the storage case 201 is provided so as to move on the antenna coil 120 of the wireless card 102 stored in the storage case 201 by switching the changeover switch 210. When the member 241 moves on the antenna coil 120, the member 241 and the antenna coil 120 are moved.
Changes, and the inductance of the antenna coil 120 changes under the influence of the member 241, so that the frequency of the antenna coil 120 changes. That is, the wireless card 102 stored in the storage case 201 is configured such that the communication frequency can be switched by the changeover switch 210 of the storage case 201. The storage case 201 is configured to receive and store the wireless card 102 only in one direction.

Here, an example of using the storage case 201 will be described. For example, suppose that a XX bus company and a △△ railroad company use wireless cards for entrance / exit management (tickets). ○○ The bus has been used communication frequency f _1, the △△ railways and communication frequency f ₂ is used. At this time, it is assumed that both communication systems are the same. The wireless card 1 stored in the storage case 201
02, it is assumed that the changeover switch 210 can switch the communication frequency f ₁ or f _2. That is, when moving the selector switch 210 to S _1, the inductance of the antenna coil 120 is L ₁ becomes communication frequency is f _1. Moving the switch 110 to S _2, the inductance of the antenna coil 120 is L ₂ becomes communication frequency is f _2. In other words, the wireless card 102 is used to store the storage case 20 when using the OO bus.
Housed in 1 changeover switch 210 is used to move the S _1, the changeover switch 210 is accommodated in the storage case 201 when utilizing △△ railway can be used to move the S _2. As described above, since it is assumed that the same communication scheme is used for the XX bus and the △△ railway, the data processing on the wireless card 102 side can be performed by the IC circuit 130 in either case.

Subsequently, referring to FIG.
2 and a wireless communication system using the storage case 201 will be described. As in the case of FIG. 2, 30 shown in FIG.
0a is the wireless card reader / writer on the XX bus side, 300
Let b be a wireless card reader / writer on the railway side. In other words, the radio card reader · writer 300a radio card communication frequency f _1, read, process data read, write (store) the transmission of the command, which performs like transmission of the write data, the radio to the card reader-writer 300b are radio card communication frequency f _2, read processing of data read, transmission of write (storage) command, and performs such transmission of the write data.

Therefore, the wireless card reader / writer 300
signal communication frequency f ₁ emitted from a is received by the wireless card 102 is switched to ○○ bus corresponding. Signal communication frequency f ₂ emitted from the radio card reader · writer 300b is received by the wireless card 102 is switched to △△ train corresponding.

Conversely, a signal of the communication frequency f ₁ radiated from the wireless card 102 switched to the ○ bus is received by the wireless card reader / writer 300a.
Δ △ A signal of the communication frequency f ₂ radiated from the wireless card 102 switched to the railway is received by the wireless card reader / writer 300b.

The wireless card reader / writer 300
(300a and 300b), the IC circuit 130, and the wireless communication between the wireless card 102 and the wireless card reader / writer 300 are the same as those in FIG.

As described above, the storage case 201 of the present invention is provided with the member 241 as communication frequency variable means for switching the communication frequency of the wireless card 102 stored in the storage case 201 and the changeover switch 210. By storing the wireless card 102 in the storage case 201, one wireless card 102 can support a system with different communication frequencies (for example, f ₁ and f ₂ ). Thus, even when using a plurality of wireless communication systems having different communication frequencies, it is not necessary to have a plurality of wireless cards, and the burden on the user can be reduced.

Next, a third embodiment will be described with reference to FIGS. FIG. 5 is a diagram schematically showing a wireless communication medium and a wireless communication medium storage case for storing the wireless communication medium according to the third embodiment of the present invention.
FIG. 6 is a diagram showing a wireless communication system using the wireless communication medium stored in the wireless communication medium storage case shown in FIG. 5.

As shown in FIG. 5, inside a wireless card 103 as a wireless communication medium, a coil-shaped antenna coil 120 for transmitting and receiving radio waves, and a data processing unit for processing data transmitted and received through the antenna coil 120 An IC circuit 130 and the like as means are provided. On the other hand, a storage case 202 for storing the wireless card 103 includes:
The member 242 is fixed at a predetermined position. This member 24
Reference numeral 2 denotes a conductive member such as a metal plate.

In the third embodiment, the wireless card 10
3, the amount of overlap between the antenna coil 130 and the member 242 changes according to the storage state when the 3 is stored in the storage case,
This utilizes the fact that the inductance of the antenna coil 120 changes under the influence of the member 242 and the communication frequency of the antenna coil 120 changes. That is,
Depending on the storage state, the antenna coil 120 and the member 242
Antenna coil 120 such that the positional relationship with
Are provided on the wireless card 103. The member 242 is provided only in a part of the storage case 202 (storage case 2) so that the positional relationship between the antenna coil 120 and the member 242 changes according to the storage state.
02 does not cover the whole).

Here, the formation position of the antenna coil 120 will be described. In FIG. 5, the geometric center of the wireless card 103 and the geometric center of the antenna coil 120 are shifted with respect to the storage direction with respect to the storage case 202.
An antenna coil 120 is formed on the wireless card 103. In the case of the rectangular wireless card 103 shown in FIG. 5, the geometric center of the wireless card 103 is the wireless card 1
03 is the intersection of the diagonals. Similarly, in the case of a rectangular antenna coil 120 as shown in FIG. 5, the geometric center of the antenna coil 120 is the intersection of the diagonal lines of the antenna coil 120. In this way, by shifting the geometric center with respect to the storage direction, one end of the wireless card 103 is stored in the storage case 202 first, and the other end of the wireless card 103 is stored in the storage case 202 first. In this case, the positional relationship between the antenna coil 120 and the member 242 can be changed as shown in FIG.

In the above description, the case where the position of the antenna coil 120 is devised and the positional relationship between the antenna coil 120 and the storage case 202 is changed according to the storage state of the wireless card 103 has been described. The positional relationship between the antenna coil 120 and the storage case 202 may be changed by devising the side of the antenna coil 120 and the positional relationship between the antenna coil 120 and the storage case 202 by devising the shape of the antenna coil 120. You may make it change.

For example, the storage case 202 is of a two-stage storage type. In other words, when the wireless card 103 is stored in the storage case 202 with one end first, the storage is completed when one end of the wireless card 103 reaches the bottom of the storage case 202, and when the wireless card 103 is stored first, the wireless card 103 is stored in the storage case 202. 10
When the other end of the storage case 3 reaches a position one step higher than the bottom of the storage case 202, the storage case 202 is completed.
Is configured. With this configuration, even if the geometric centers of the wireless card 103 and the antenna coil 120 coincide with each other with respect to the storage direction, the antenna coil 12 can be adjusted according to the storage state.
The positional relationship between 0 and the member 242 can be changed.

When the shape of the antenna coil 120 is devised, for example, when the wireless card 103 is stored in the storage case 202 with one end first, and when the wireless card 103 is stored in the storage case 202 with the other end first. Thus, an antenna coil having a shape (such as a triangle) in which the overlapping area between the member 242 and the antenna coil 120 changes is adopted. As a result, the antenna coil 12 can be
The positional relationship between 0 and the member 242 can be changed.

Here, an example of use of the wireless card 103 and the storage case 202 will be described. For example, ○
○ Assume that wireless cards are used for entrance and exit management (gates) at bus companies and railway companies. ○○ The bus has been used communication frequency f _1, the △△ railways and communication frequency f ₂ is used. At this time, it is assumed that both communication systems are the same. Also, the wireless card 103
It has the other end when housed in one end to the top and when accommodated in the head with respect to the container 202, it is assumed that the communication frequency is switched to f ₁ or f _2. In other words, this wireless card 103 is stored in the storage case 202 with one end at the top when using the XX bus, and stored in the storage case 202 with the other end at the top when using the railway. Can be used. In addition,
As described above, since it is assumed that the same communication method is used for the XX bus and the △△ railway, the wireless card 1
The data processing on the 03 side is performed by the IC circuit 130 in either case.
Can be done with

Subsequently, referring to FIG.
3 and a wireless communication system using the storage case 202 will be described. As in the case of FIG. 2, 30 shown in FIG.
0a is the wireless card reader / writer on the XX bus side, 300
Let b be a wireless card reader / writer on the railway side. In other words, the radio card reader · writer 300a radio card communication frequency f _1, read, process data read, write (store) the transmission of the command, which performs like transmission of the write data, the radio to the card reader-writer 300b are radio card communication frequency f _2, read processing of data read, transmission of write (storage) command, and performs such transmission of the write data.

Therefore, the wireless card reader / writer 300
signal communication frequency f ₁ emitted from a is received by the wireless card 103 is switched to ○○ bus corresponding. Signal communication frequency f ₂ emitted from the radio card reader · writer 300b is received by the wireless card 103 is switched to △△ train corresponding.

Conversely, the signal of the communication frequency f ₁ radiated from the wireless card 103 switched to the ○ bus is received by the wireless card reader / writer 300a.
Δ △ A signal of the communication frequency f ₂ radiated from the wireless card 103 switched to the railway is received by the wireless card reader / writer 300b.

The wireless card reader / writer 300
(300a and 300b), the IC circuit 130, and the wireless communication between the wireless card 103 and the wireless card reader / writer 300 are the same as those in FIG.

As described above, the storage case 202 of the present invention is provided with the member 242 which affects the inductance of the antenna coil 120, and the wireless card 103 is provided with the member 242 according to the storage state in the storage case 201. Since the antenna coil 120 is provided so that the positional relationship with the member 242 provided in the storage case 202 changes, the wireless card 103 is stored in the storage case 202 according to the storage state when the wireless card 103 is stored in the storage case 202. The communication frequency of the antenna coil 120 is switched. Therefore, by using the storage case 202, one wireless card 103 can support a system with different communication frequencies (for example, f ₁ and f ₂ ). Thereby, even when using a plurality of wireless communication systems having different communication frequencies, it is not necessary to have a plurality of wireless cards,
The burden on the user can be reduced. Furthermore, since there is no need to provide a changeover switch in the storage case as in the second embodiment, the storage case can be easily manufactured, and the manufacturing cost of the storage case can be reduced.

Up to this point, only the communication frequency is different,
The description of the wireless card system having the same communication system is ended. The description now turns to a wireless card system in which both the communication system and the communication frequency are different.

First, a fourth embodiment will be described with reference to FIGS. FIG. 7 is a view schematically showing a wireless card as a wireless communication medium according to a fourth embodiment of the present invention, and FIG. 8 is a view schematically showing a wireless communication system using the wireless communication medium shown in FIG. It is.

The basic structure of the wireless card 104 as a wireless communication medium shown in FIG.
It is almost the same as 1. The difference is that the IC circuit 130a corresponding to the communication method a and the IC circuit 1 corresponding to the communication method b
30b, and a switching circuit 150 for switching between the IC circuits 130a and 130b. The configuration of the IC circuits 130a and 130b is as follows.
It is basically the same as the IC circuit 130. The switching circuit 150 switches between the IC circuit 130a and the IC circuit 130b according to a change in the inductance of the antenna coil 120.

That is, the member 1 is set by the changeover switch 110.
40 moves on the antenna coil 120,
The amount of overlap between the member 140 and the antenna coil 120 changes, and under the influence of the member 140, the inductance of the antenna coil 120 changes and the antenna coil 12
The frequency of 0 changes. Further, the switching circuit 150 functions by changing the inductance, and the IC circuit 130a is connected to the antenna coil 120, or
For example, the C circuit 130b is connected. That is, the wireless card 104 is configured so that the communication frequency and the communication method can be simultaneously switched by the changeover switch 110.

Here, an example of use of the wireless card 104 will be described. For example, it is assumed that a wireless card is used in an XX bus company and a xx railway company for entrance / exit management (tickets). The communication frequency f ₁ and the communication method a are used in the XX bus, and the communication frequency f ₂
It is assumed that the communication method b is used.

The wireless card 104 described above can be switched by the changeover switch 110 between the communication frequency f ₁ and the communication method a, or the communication frequency f ₂ and the communication method b. That is, the changeover switch 110 is set to S
_When it is moved to ₁ , the inductance of the antenna coil 120 becomes L _{1 and the} communication frequency becomes f ₁ . Further, since the inductance becomes L _1, an antenna coil 120 and the IC circuit 130a are connected by switching circuit 150, a communication mode a corresponding. Set the changeover switch 110 to S
Moving to ₂ , the inductance of the antenna coil 120 becomes L _{2 and the} communication frequency becomes f ₂ . Further, since the inductance becomes L _2, an antenna coil 120 and the IC circuit 130b is connected by switching circuit 150, a communication mode b correspond. That is, the wireless card 104 uses the changeover switch 1 when using the XX bus.
10 was used to move the S _1, when utilizing ×× railway can be used to move the switch 110 to S _2.

Subsequently, referring to FIG.
4 will be described. Suppose that 300a shown in FIG. 8 is a wireless card reader / writer on the XX bus side and 300b is a wireless card reader / writer on the XX railway side. That is, the wireless card reader / writer 3
00a for radio card communication frequency f ₁ and communication mode a, reading, processing of data read, transmission of write (storage) command, which performs like transmission of the write data, the radio card reader · Writer 300b
For radio card communication frequency f ₂ and communication mode b, reading, processing of data read, transmission of write (storage) command, and performs such transmission of the write data.

Therefore, the wireless card reader / writer 300
The signal of the communication frequency f ₁ and the communication system a radiated from the wireless card 10 is switched to the OO bus.
4 is received. The signal of the communication frequency f ₂ and the communication system b radiated from the wireless card reader / writer 300b is
Xx Received by the wireless card 104 that has been switched to railway.

Conversely, the signal of the communication frequency f ₁ and the communication system a radiated from the wireless card 104 switched to the ○ bus is transmitted to the wireless card reader / writer 300 a
Received at. ×× signal communication frequency f ₂ and the communication mode b emitted from the wireless card 104 is switched to the railway support is received by the wireless card reader-writer 300b.

The wireless card reader / writer 300
(300a and 300b), IC circuit 130a and IC
The circuit 130b and the wireless communication between the wireless card 104 and the wireless card reader / writer 300 are the same as those in FIG.

As described above, the wireless card 104 of the present invention includes the IC circuit 130a and the IC circuit 130b so as to be compatible with different communication schemes, and further includes switching means for switching between a communication frequency and a communication scheme. Since the switch 110, the member 140, and the switching circuit 150 are provided, a single wireless card 104 uses different communication frequencies (for example, f ₁ and f ₂ ) and different communication systems (for example, the communication system a and the communication system b). Can be handled. Accordingly, even when a plurality of wireless communication systems having different communication frequencies and communication systems are used, it is not necessary to have a plurality of wireless cards and the burden on the user can be reduced.

Next, a fifth embodiment will be described with reference to FIGS. FIG. 9 is a diagram schematically showing a wireless communication medium according to a fifth embodiment of the present invention and a wireless communication medium storage case for housing the wireless communication medium. FIG. FIG. 1 is a diagram schematically illustrating a wireless communication system using a communication medium.

The basic structure of the wireless card 105 as a wireless communication medium shown in FIG. 9 is the same as that of the wireless card 10 described in FIG.
It is almost the same as 2. The difference is that the IC circuit 130a corresponding to the communication method a and the IC circuit 1 corresponding to the communication method b
30b, and a switching circuit 150 for switching between the IC circuits 130a and 130b. The storage case for storing the wireless card 105 includes:
It is assumed that the storage case 201 described with reference to FIG. 3 is applied.

Member 241 provided in storage case 201
Is provided so as to move on the antenna coil 120 of the wireless card 105 stored in the storage case 201 by switching the changeover switch 210. When the member 241 moves on the antenna coil 120, the amount of overlap between the member 241 and the antenna coil 120 changes. Under the influence of the member 241, the inductance of the antenna coil 120 changes, and The frequency changes. Further, the change in inductance causes the switching circuit 150 to function, and the IC circuit 130a or the IC circuit 130b is connected to the antenna coil 120. That is, the wireless card 105 stored in the storage case 201
The communication frequency and the communication system can be simultaneously switched by the changeover switch 210 of the storage case 201.

Here, a usage example of the wireless card 105 and the storage case 201 will be described. For example, in XX bus company and XX railway company, entrance / exit management (wicket)
It is assumed that a wireless card is used. ○○ The bus are used communication frequency f ₁ and communication mode a is in ×× railways and communication frequency f ₂ and a communication scheme b is used.

The wireless card 105 stored in the storage case 201 is switched by the changeover switch 210 to the communication frequency f.
₁ and communication method a or communication frequency f ₂ and communication method b
It can be switched to. That is, when moving the selector switch 210 to S _1, the inductance of the antenna coil 120 is L ₁ becomes communication frequency f
It becomes ₁ . Further, since the inductance becomes L _1, and the antenna coil 120 by switching circuit 0.99 IC
The circuit 130a is connected, and is compatible with the communication system a. Moving the switch 210 to S _2, the inductance of the antenna coil 120 is L ₂ becomes communication frequency f
Becomes ₂ . Further, since the inductance becomes L ₂ , the switching circuit 150 connects the antenna coil 120 to the IC.
The circuit 130b is connected, and is compatible with the communication system b. That is, the wireless card 105 is stored in the storage case 201 when using the
It was used to move the S _1, the changeover switch 210 is accommodated in the storage case when utilizing ×× railway can be used to move the S _2.

Subsequently, referring to FIG.
A wireless communication system using the storage case 05 and the storage case 201 will be described. Suppose that 300a shown in FIG.
The radio card reader / writer on the bus side and 300b are radio card reader / writers on the railway side. That is, to perform the radio card reader · writer 300a radio card communication frequency f ₁ and communication mode a, reading, processing of data read, transmission of write (storage) command, and transmission of the write data and a, performs the wireless card reader-writer 300b are radio card communication frequency f ₂ and communication mode b, reading, processing of data read, transmission of write (storage) command, and transmission of the write data Things.

Therefore, the wireless card reader / writer 300
The signal of the communication frequency f ₁ and the communication system a radiated from the wireless card 10 is switched to the OO bus.
5 is received. The signal of the communication frequency f ₂ and the communication system b radiated from the wireless card reader / writer 300b is
Xx Received by the wireless card 105 that has been switched for railway use.

On the contrary, the signal of the communication frequency f ₁ and the communication system a radiated from the wireless card 105 switched to the ○ bus is transmitted to the wireless card reader / writer 300 a
Received at. ×× signal communication frequency f ₂ and the communication mode b emitted from the wireless card 105 is switched to the railway support is received by the wireless card reader-writer 300b.

The wireless card reader / writer 300
(300a and 300b), IC circuit 130a and IC
The circuit 130b and the wireless communication between the wireless card 105 and the wireless card reader / writer 300 are the same as those in FIG.

As described above, the wireless card 105 of the present invention is provided with the IC circuit 130a and the IC circuit 130b so as to be compatible with different communication systems.
1 is a wireless card 10 stored in the storage case 203.
5 is provided with a member 241 and a changeover switch 210 as switching means for switching the communication frequency and the communication method of the wireless card 105. (Eg, f ₁ and f ₂ ) and systems of different communication systems (eg, communication system a and communication system b). Thereby, even when using a plurality of wireless communication systems having different communication frequencies and communication methods,
It is not necessary to have a plurality of wireless cards, and the burden on the user can be reduced.

Next, referring to FIG. 11 and FIG.
An embodiment will be described. FIG. 11 shows a sixth embodiment of the present invention.
12 schematically shows a wireless communication medium according to the embodiment and a wireless communication medium storage case for storing the wireless communication medium. FIG. 12 shows a wireless communication medium and a wireless communication medium using the wireless communication medium storage case shown in FIG. It is a figure showing the outline of a communication system.

The basic structure of the wireless card 106 as a wireless communication medium shown in FIG. 11 is the same as that of the wireless card 1 described in FIG.
It is almost the same as 03. The difference is that an IC circuit 130a corresponding to the communication method a, an IC circuit 130b corresponding to the communication method b, and these IC circuits 130a and 130b
And a switching circuit 150 for switching between.
The storage case 202 described with reference to FIG. 5 is applied to the storage case for storing the wireless card 106.

In the sixth embodiment, the wireless card 10
The amount of overlap between the antenna coil 130 and the member 242 changes in accordance with the storage state when the antenna coil 12 is stored in the storage case 202, and the inductance of the antenna coil 120 changes due to the influence of the member 242, thereby changing the antenna coil 12.
This utilizes the fact that the communication frequency of 0 changes.
Further, the change in inductance causes the switching circuit 150 to function, and the IC circuit 13
0a is connected, or the IC circuit 130b is connected. In other words, the wireless card 105 is configured so that the communication frequency and the communication method can be simultaneously switched according to the storage state when stored in the storage case 202. Note that the configuration for changing the inductance of the antenna coil 120 according to the stored state is as described in the third embodiment, and a description thereof will not be repeated.

Here, an example of using such a wireless card 106 and the storage case 202 will be described. For example, ○
○ Assume that a bus company and a xx railway company use wireless cards for entrance / exit management (gates). ○○ are used communication frequency f ₁ and communication mode a is a bus, ×
× The railway and communication frequency f ₂ and a communication scheme b is used.

Further, the wireless card 106 is
The other end when housed in one end to the top and when accommodated in the head with respect to 02 shall be switched communication frequency f ₁ and the communication method a, or a communication frequency f ₂ and communication system b. That is, this wireless card 106
When the bus is used, it can be stored and used in the storage case 202 with one end at the top, and can be stored and used in the storage case 202 with the other end at the top when using the XX railway.

Subsequently, referring to FIG.
A wireless communication system using the storage case 06 and the storage case 202 will be described. Suppose that 300a shown in FIG.
The radio card reader / writer on the bus side and 300b are radio card reader / writers on the railway side. That is, to perform the radio card reader · writer 300a radio card communication frequency f ₁ and communication mode a, reading, processing of data read, transmission of write (storage) command, and transmission of the write data and a, performs the wireless card reader-writer 300b are radio card communication frequency f ₂ and communication mode b, reading, processing of data read, transmission of write (storage) command, and transmission of the write data Things.

Therefore, the wireless card reader / writer 300
The signal of the communication frequency f ₁ and the communication system a radiated from the wireless card 10 is switched to the OO bus.
6 is received. The signal of the communication frequency f ₂ and the communication system b radiated from the wireless card reader / writer 300b is
Xx Received by the wireless card 106 that has been switched for railway use.

Conversely, the signal of the communication frequency f ₁ and the communication system a radiated from the wireless card 106 switched to the ○ bus is transmitted to the wireless card reader / writer 300 a
Received at. ×× signal communication frequency f ₂ and the communication mode b emitted from the wireless card 106 is switched to the railway support is received by the wireless card reader-writer 300b.

The wireless card reader / writer 300
(300a and 300b), IC circuit 130a and IC
The circuit 130b and the wireless communication between the wireless card 106 and the wireless card reader / writer 300 are the same as those in FIG.

As described above, the storage case 202 of the present invention is provided with the member 242 that affects the inductance of the antenna coil 120, and the wireless card 103 is provided with an IC circuit so as to be compatible with different communication systems. Since the antenna coil 120 is provided such that the positional relationship between the member 130a and the IC circuit 130b and the member 242 provided in the storage case 202 changes according to the storage state in the storage case 201, The communication frequency and communication method of the antenna coil 120 of the wireless card 103 are switched according to the storage state when the card 106 is stored in the storage case 202. Therefore, by using the storage case 202, different communication frequencies (for example, f ₁ and f ₂ ) can be used for one wireless card 103.
In addition, it is possible to support systems of different communication systems (for example, communication system a and communication system b). This allows
Even when a plurality of wireless communication systems having different communication frequencies and communication systems are used, it is not necessary to have a plurality of wireless cards, and the burden on the user can be reduced. Further, since there is no need to provide a changeover switch in the storage case as in the fifth embodiment, the storage case can be easily manufactured and the manufacturing cost of the storage case can be reduced.

Up to this point, the description of the wireless card system having a different communication system and communication frequency is completed. Here, the change of the resonance frequency due to the influence of the members will be described. In addition,
Here, a case where a metal plate is used as a member will be described.

FIG. 13 shows a configuration for measuring a change in the resonance frequency of the antenna coil. The antenna coil 402 used here has dimensions of 47 × 79 mm and 30 turns.
This is a loop antenna having a diameter of 0.08 mmФ. As the metal plate 401, a copper plate having a size of 50 × 80 mm and a thickness of 0.5 mm was used. As shown in FIG.
2, a metal plate 401 is superimposed on the antenna coil 402.
Is measured by the LCR meter 403.
The result is 400 μH when the antenna coil 402 and the copper plate 401 start to overlap as shown in FIG. When the overlap length is 50 mm, it is 600 μH, and it can be confirmed that the inductance increases as the overlap length increases.

This phenomenon is that, when a conductor is present near the inductance, an eddy current flows through the conductor due to magnetic flux leaking from the inductance, and the inductance value changes. When the inductance of the antenna coil 402 fluctuates, the resonance frequency of the antenna is determined by the antenna coil 402 and the capacitor C of the tuning circuit (131) connected in parallel or in series. The resonance frequency is calculated by the following equation.

F = 1 / (2π√ (LC)) FIG. 15 shows a calculation result of the resonance frequency with respect to the overlap length X when the capacitor C is 100 pF. When the antenna coil 402 starts to overlap with the copper plate 401, the resonance frequency is 790 KHz. 650 KH for 50 mm overlap length
z, and it can be confirmed that the resonance frequency decreases as the overlap length increases. Therefore, if such two resonance frequencies are assigned as communication frequencies of different wireless card readers / writers, it becomes possible for one wireless card to communicate with a wireless card reader / writer having these communication frequencies. .

In the embodiment of the present invention described above, the wireless card and the storage case capable of supporting two systems having different communication frequencies (and communication systems) have been described. However, the present invention is not limited to this. is not. That is, a configuration that can support three or more different communication frequencies (and communication methods) may be adopted.

In the embodiment of the present invention described above, the communication frequency (and the communication method) is switched and used on the portable wireless card side. On the contrary, the wireless card reader / writer is used on the wireless card reader / writer side. The communication frequency (and communication method) may be switched.

Further, in the second and third embodiments described above, the communication frequency (and the communication method) of the wireless card is switched while the wireless card is stored in the storage case. A change in the communication frequency (and communication method) between when the communication is performed and when the communication is not stored may be used.

Furthermore, in the above-described embodiment of the present invention, the member for changing the inductance of the antenna coil is described as being provided in the wireless card itself or in the storage case for storing the wireless card. However, the present invention is not limited to this. For example, a member that changes the inductance may be directly mounted on the wireless card.

[0097]

According to the present invention, a wireless card and a storage case having the following effects, and a wireless communication system using them can be provided. (1) One wireless card can communicate with a plurality of wireless card readers / writers having the same communication method and different communication frequencies.

(2) A single wireless card can communicate with a plurality of wireless card readers / writers having different communication methods and different communication frequencies. (3) In order to reduce the manufacturing cost of the wireless card, the parts other than the antenna coil are integrated into one chip (combined into one IC circuit)
Under the current situation, it is difficult to change the capacitance of the capacitor included in the IC circuit to change the inductance of the antenna coil. However, according to the present invention, since the conductive member is provided and the inductance of the antenna coil is changed by the conductive member, the inductance of the antenna coil can be changed without preventing the antenna coil from being formed into one chip.

[Brief description of the drawings]

FIG. 1 is a view schematically showing a wireless communication medium according to a first embodiment of the present invention.

FIG. 2 is a diagram schematically showing a wireless communication system using the wireless communication medium shown in FIG. 1;

FIG. 3 is a diagram schematically illustrating a wireless communication medium and a wireless communication medium storage case that stores the wireless communication medium according to a second embodiment of the present invention.

FIG. 4 is a diagram schematically showing a wireless communication system using the wireless communication medium and the wireless communication medium storage case shown in FIG. 3;

FIG. 5 is a diagram schematically showing a wireless communication medium according to a third embodiment of the present invention and a wireless communication medium storage case for storing the wireless communication medium.

FIG. 6 is a diagram showing a wireless communication system using the wireless communication medium and the wireless communication medium storage case shown in FIG. 5;

FIG. 7 is a diagram schematically showing a wireless communication medium according to a fourth embodiment of the present invention.

8 is a diagram schematically showing a wireless communication system using the wireless communication medium shown in FIG.

FIG. 9 is a diagram schematically illustrating a wireless communication medium according to a fifth embodiment of the present invention and a wireless communication medium storage case that stores the wireless communication medium.

10 is a diagram schematically showing a wireless communication medium shown in FIG. 9 and a wireless communication system using the wireless communication medium.

FIG. 11 is a diagram schematically illustrating a wireless communication medium and a wireless communication medium storage case that stores the wireless communication medium according to a sixth embodiment of the present invention.

12 is a diagram schematically showing a wireless communication system using the wireless communication medium and the wireless communication medium storage case shown in FIG. 11;

FIG. 13 is a diagram showing a configuration for measuring a change in a resonance frequency of the antenna coil.

FIG. 14 is a diagram showing a change in inductance with respect to an overlap length between an antenna coil and a metal.

FIG. 15 is a diagram showing a change in resonance frequency with respect to an overlap length between an antenna coil and a metal.

[Explanation of symbols]

 101-106 wireless cards 110, 210 switch selector 120 antenna coils 130, 130a, 130b IC circuits 140, 241, 242 members 201, 202 storage cases 300a, 300b wireless card reader / writer

Claims (16)

[Claims] 1. A coil-shaped antenna for transmitting and receiving radio waves, and by changing the inductance of the coil,
A wireless communication medium comprising: a frequency variable unit that changes a communication frequency of the antenna; and a data processing unit that processes data transmitted and received via the antenna. 2. A coil-shaped antenna for transmitting and receiving radio waves, a conductive member, and moving the conductive member, thereby changing the inductance of the coil due to the influence of the conductive member, thereby enabling communication of the antenna. A wireless communication medium comprising: a member moving unit that changes a frequency; and a data processing unit that processes data transmitted and received via the antenna. 3. A coil-shaped antenna for transmitting and receiving radio waves, a conductive member, and moving the conductive member,
A member moving means for changing the inductance of the coil to the first or second inductance different from each other by the influence of the conductive member, and changing the communication frequency of the antenna to the first or second communication frequency different from each other; A wireless communication medium having data processing means for processing data transmitted / received via the antenna; a first wireless communication apparatus for performing wireless communication with the wireless communication medium at the first communication frequency; A wireless communication system, comprising: a communication medium; and a second wireless communication device that performs wireless communication at the second communication frequency. 4. A radio communication medium having a coiled antenna for transmitting and receiving radio waves and data processing means for processing data transmitted and received via the antenna, wherein the radio communication medium is stored. A wireless communication medium storage case provided with frequency variable means for changing the communication frequency of the antenna by changing the inductance of the coil. 5. A radio communication medium having a coil-shaped antenna for transmitting and receiving radio waves and a transmission / reception data processing means for processing data transmitted / received via the antenna, comprising: a conductive member; Moving the conductive member, thereby changing the inductance of the coil of the wireless communication medium accommodated by the effect of the conductive member, and changing the communication frequency of the antenna. Wireless communication medium storage case. 6. A wireless communication medium having a coiled antenna for transmitting and receiving radio waves, a transmission / reception data processing means for processing data transmitted / received via the antenna, and accommodating the wireless communication medium. By moving the conductive member and the conductive member, the inductance of the coil of the wireless communication medium accommodated by the effect of the conductive member is changed to a first or second inductance different from each other, A wireless communication medium storage case having member moving means for changing a communication frequency of the antenna to a first or second communication frequency different from each other; and a first wireless communication medium for performing wireless communication with the wireless communication medium at the first communication frequency. And a second wireless communication device that performs wireless communication with the wireless communication medium at the second communication frequency. Wireless communication system. 7. A storage case in which a member is provided at a predetermined position for use, wherein when stored in the storage case, the inductance changes due to the effect of the member and the communication frequency changes. A radio communication medium, comprising: a coil-shaped antenna for transmitting and receiving radio waves provided in the above; and data processing means for processing data transmitted and received through the antenna. 8. A storage case in which a conductive member is provided at a predetermined position for use, and according to a storage state when stored in the storage case,
A coil-shaped antenna for radio wave transmission and reception provided so that the inductance changes due to the influence of the conductive member and the communication frequency changes, and data processing means for processing data transmitted and received via the antenna. A wireless communication medium characterized by the following. 9. The conductive member can be used by being stored in a storage case having a conductive member fixed at a predetermined position, and is stored in the storage case in a first storage state. And the first positional relationship, the communication frequency becomes the first communication frequency because the inductance becomes the first inductance due to the effect of the conductive member, and the first case is stored in the storage case. When stored in a second stored state different from the stored state described above, when the positional relationship with the conductive member becomes a second positional relationship different from the first positional relationship, by the influence of the conductive member, The communication frequency is set to be a second communication frequency different from the first communication frequency when the inductance becomes a second inductance different from the first inductance. A wireless communication medium comprising: a coil antenna for wireless communication; and data processing means for processing data transmitted and received via the antenna. 10. A storage case in which a conductive member is fixed at a predetermined position, and a storage case that can be used by being stored in the storage case, and is stored in the storage case in a first storage state. When the positional relationship with the conductive member becomes the first positional relationship, the inductance becomes the first inductance due to the influence of the conductive member, and the communication frequency becomes the first inductance.
And a second position different from the first positional relationship with the conductive member by being stored in the storage case in a second storage state different from the first storage state. When the relationship is established, the inductance becomes a second inductance different from the first inductance due to the influence of the conductive member, so that the communication frequency becomes a second communication frequency different from the first communication frequency. A wireless communication medium having a coiled antenna for wireless communication provided and data processing means for processing data transmitted / received via the antenna; and wireless communication with the wireless communication medium at the first communication frequency. And a second wireless communication device that performs wireless communication at the second communication frequency with the wireless communication medium. Wireless communication system. 11. A coil-shaped antenna for transmitting and receiving radio waves, first data processing means for processing data transmitted and received via the antenna at a first communication frequency and a first communication method, and A second data processing means for processing data transmitted / received via a second communication frequency different from the first communication frequency and a second communication method different from the first communication method via an antenna; The antenna is connected to the first data processing means when the inductance is the first inductance, and the antenna is connected to the second data processing means when the inductance of the antenna is the second inductance different from the first inductance. Connection switching means, a conductive member, and moving the conductive member. The inductance of the Na of the coil is varied in the first or second inductance,
A member moving means for changing the communication frequency of the antenna to the first or second communication frequency, respectively, and performing connection switching by the connection switching means. 12. A coil-shaped antenna for transmitting and receiving radio waves,
First data processing means for processing data transmitted / received at a first communication frequency and a first communication method via the antenna, and a second communication frequency different from the first communication frequency via the antenna And a second processor for processing data transmitted and received by a second communication system different from the first communication system.
And an antenna connected to the first data processing means when the inductance of the antenna is a first inductance, and when the inductance of the antenna is a second inductance different from the first inductance. A connection switching means for connecting the antenna to the second data processing means, a conductive member, and moving the conductive member to reduce the inductance of the coil of the antenna under the influence of the conductive member.
Or a wireless communication medium having member moving means for changing the communication frequency of the antenna to the first or second communication frequency by changing the antenna to the second inductance and changing the connection by the connection switching means. The wireless communication medium and the first communication frequency and the first communication frequency
A first wireless communication device that performs wireless communication using the communication method described above, the wireless communication medium, the second communication frequency, and the first
And a second wireless communication device that performs wireless communication using the communication method. 13. A coil-shaped antenna for transmitting and receiving radio waves,
First data processing means for processing data transmitted / received at a first communication frequency and a first communication method via the antenna, and a second communication frequency different from the first communication frequency via the antenna And a second processor for processing data transmitted and received by a second communication system different from the first communication system.
And an antenna connected to the first data processing means when the inductance of the antenna is a first inductance, and when the inductance of the antenna is a second inductance different from the first inductance. A wireless communication medium having a connection switching means for connecting an antenna to the second data processing means is housed therein, and the conductive member is moved, and the influence of the conductive member is caused by moving the conductive member. Thereby changing the inductance of the coil of the antenna to the first or second inductance,
And a member moving means for changing a communication frequency of the antenna to the first or second communication frequency, respectively, and performing connection switching by the connection switching means. 14. A coil-shaped antenna for transmitting and receiving radio waves,
First data processing means for processing data transmitted / received at a first communication frequency and a first communication method via the antenna, and a second communication frequency different from the first communication frequency via the antenna And a second processor for processing data transmitted and received by a second communication system different from the first communication system.
And an antenna connected to the first data processing means when the inductance of the antenna is a first inductance, and when the inductance of the antenna is a second inductance different from the first inductance. A wireless communication medium having connection switching means for connecting an antenna to the second data processing means; and a wireless communication medium for accommodating the wireless communication medium, the conductive member being moved by moving the conductive member. Due to the influence of the conductive member, the inductance of the coil of the antenna is changed to the first or second inductance, and the communication frequency of the antenna is changed to the first or second communication frequency, respectively. Wireless communication medium storage case having a member moving means for performing connection switching by means, Wherein the wireless communication medium a first communication frequency and the first
A first wireless communication device that performs wireless communication using the communication method described above, the wireless communication medium, the second communication frequency, and the first
And a second wireless communication device that performs wireless communication using the communication method. 15. A storage case in which a conductive member is fixed at a predetermined position for use, wherein the storage member is stored in the storage case in a first storage state so as to be positioned with respect to the conductive member. When the relationship becomes the first positional relationship, the inductance becomes the first inductance due to the influence of the conductive member, so that the communication frequency becomes the first communication frequency, and the first storage state is stored in the storage case. When the positional relationship with the conductive member is changed to a second positional relationship different from the first positional relationship by being stored in the second storage state different from the above, the inductance is reduced by the influence of the conductive member. Wireless communication provided such that a communication frequency becomes a second communication frequency different from the first communication frequency by becoming a second inductance different from the first inductance. A coil-shaped antenna for use with the first communication unit, first data processing means for processing data transmitted and received at a first communication frequency and a first communication method via the antenna, and the first communication A second data processing means for processing data transmitted / received by a second communication frequency different from the frequency and a second communication method different from the first communication method; and when the inductance of the antenna is the first inductance, Connection switching means for connecting an antenna to the first data processing means, and connecting the antenna to the second data processing means when the inductance of the antenna is the second inductance. Wireless communication medium. 16. A storage case in which a conductive member is fixed at a predetermined position, and a storage case that can be used by being stored in the storage case, and is stored in the storage case in a first storage state. When the positional relationship with the conductive member becomes the first positional relationship, the inductance becomes the first inductance due to the influence of the conductive member, and the communication frequency becomes the first inductance.
And a second position different from the first positional relationship with the conductive member by being stored in the storage case in a second storage state different from the first storage state. When the relationship is established, the inductance becomes a second inductance different from the first inductance due to the influence of the conductive member, so that the communication frequency becomes a second communication frequency different from the first communication frequency. A coil-shaped antenna for wireless communication provided; first data processing means for processing data transmitted and received at a first communication frequency and a first communication method via the antenna; A second data processing means for processing data transmitted and received at a second communication frequency different from the first communication frequency and at a second communication method different from the first communication method; And connecting the antenna to the first data processing means when the inductance of the antenna is the first inductance, and connecting the antenna to the second data processing means when the inductance of the antenna is the second inductance. A wireless communication medium having connection switching means for connecting, the wireless communication medium, the first communication frequency and the first
A first wireless communication device that performs wireless communication using the communication method described above, the wireless communication medium, the second communication frequency, and the first
And a second wireless communication device that performs wireless communication using the communication method.