JP2011019133A - Radio communication equipment, radio communication method, program, and integrated circuit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide radio communication equipment for connecting each terminal, which constitutes a wireless network, to an optimal destination.SOLUTION: A BD 20 includes a first radio I/F 211, a second radio I/F 212, and a connection information notification unit 220. The first radio I/F 211 is a logical communication interface wirelessly connected to an AP (Access Point) 10 as a station. The second radio I/F 212 is a logical communication interface wirelessly connected to a TV 30 as an access point. When both the AP 10 and the TV 30 are wirelessly connected, the connection information notification unit 220 transmits connection information about the connection to the AP 10 acquired through the first radio I/F 211, to the TV 30 through the second radio I/F 212.

Description

  The present invention relates to a wireless communication apparatus, and more particularly to an AV device having a wireless communication function.

  2. Description of the Related Art Conventionally, a technology for interconnecting AV devices, personal computers, information appliances, and the like based on rules such as DLNA (Digital Living Network Alliance) is known (for example, see Patent Document 1). Patent Document 1 discloses a home network system in which a television, an HDD (Hard Disk Drive) recording / playback device, and a personal computer are wirelessly connected via an access point.

  In the home network system configured as described above, the HDD recorder / player can download content on the Internet and store the content in the HDD, for example. In addition, for example, the television can directly download content on the Internet, or can acquire and display the content held in the HDD recorder / player. At this time, the HDD recorder / reproducer and the television perform all wireless communication via an access point. Such a wireless communication method is called an infrastructure mode.

  On the other hand, as another method of wireless communication, a standard such as Wi-Fi that directly wirelessly connects two devices that perform wireless communication is also known. Specifically, by pressing a button provided on each of the HDD recorder / reproducer and the television, both devices are directly connected to each other wirelessly. As a result, the television can directly acquire and reproduce the content from the HDD recording / reproducing device.

JP 2008-310451 A

  However, in the home network system configured as described above, if the HDD recorder / player is wirelessly connected to the access point and the TV is directly connected to the HDD recorder / player, the TV cannot directly acquire content on the Internet. This causes a problem. This is because a general HDD recording / reproducing device does not have a function of relaying a request packet from a television to an access point.

  The present invention has been made in view of such a situation, and an object of the present invention is to provide a wireless communication apparatus that switches connection destinations so that the connection destinations of the terminals constituting the wireless network are optimized. And

  A wireless communication apparatus according to an aspect of the present invention is a third wireless communication apparatus that performs wireless communication with the first and second wireless communication apparatuses. Specifically, a first wireless interface, which is a logical communication interface wirelessly connected to the first wireless communication device as a station, and a logical connection wirelessly connected to the second wireless communication device as an access point. The first wireless communication apparatus acquired through the first wireless interface in response to the wireless connection to both the second wireless interface, which is a secure communication interface, and both the first and second wireless communication apparatuses A connection information notification unit for notifying the second wireless communication apparatus of connection information related to the connection to the second wireless communication device through the second wireless interface.

  With the above configuration, the connection destination of the second wireless communication apparatus can be switched to the first wireless communication apparatus. As a result, it is possible to optimize the connection destination of each wireless communication device constituting the wireless network.

  Note that “wireless connection” in this specification refers to a state in which two devices can perform wireless communication directly (without interposing other devices). On the other hand, when “wireless communication” is simply described, it may be direct or indirect. The “station” refers to a device that broadcasts “Probe Request (search request signal)” in a sequence for establishing a wireless connection. On the other hand, the “access point” refers to a device on the side that transmits a “Probe Response (search response signal)” to the transmission source of the “Probe Request”.

  As one form, the connection information notifying unit obtains the connection information in response to establishment of a wireless connection with the second wireless communication device in a state of wireless connection with the first wireless communication device. You may notify to the said 2nd radio | wireless communication apparatus.

  As another form, the connection information notifying unit is connected to the second wireless communication device, and when the wireless connection with the first wireless communication device is established, May be notified to the second wireless communication apparatus.

  Further, the connection information may include an SSID (Service Set Identifier), an authentication method, an encryption method, and an encryption key of the first wireless communication device. The second wireless communication device that has received the connection information including each of the above information can switch the connection destination from the third wireless communication device to the first wireless communication device without requesting a new work from the user. it can.

  Furthermore, the wireless communication device stores a content, a content acquisition unit that acquires the content via the first wireless interface, and stores the content in the storage unit, and is stored in the storage unit. A content distribution unit that distributes the content to the second wireless interface via the first wireless interface. The third wireless communication apparatus is typically a content recording apparatus (such as a BD recorder) having the above functions.

  A wireless communication apparatus according to another aspect of the present invention is the second wireless communication apparatus described above. Specifically, a wireless interface that is wirelessly connected to one of the first and third wireless communication devices as a station, and the wireless interface is wirelessly connected to the third wireless communication device. In response to receiving the connection information from the third wireless communication device, the wireless connection with the third wireless communication device is disconnected, and the wireless interface is connected to the first wireless communication device based on the connection information. And a connection switching unit for wireless connection. As a result, the connection destination can be switched from the third wireless communication apparatus to the first wireless communication apparatus without requiring a new operation from the user.

  Furthermore, the second wireless communication device may include a content acquisition unit that acquires content via the wireless interface, and a display unit that displays the content acquired by the content acquisition unit. The second wireless communication device is typically a content display device (such as a television) that acquires and displays content.

  A wireless communication system according to an aspect of the present invention includes a first wireless communication apparatus that functions as an access point, a second wireless communication apparatus that functions as a station, and a third wireless that functions as an access point and a station. A communication device. Specifically, the third wireless communication device includes a first wireless interface that is a logical communication interface that is wirelessly connected to the first wireless communication device as a station, and the second wireless communication device that serves as an access point. A second wireless interface that is a logical communication interface that is wirelessly connected to the communication device, and through the first wireless interface in response to wireless connection to both the first and second wireless communication devices. A connection information notifying unit for notifying the second wireless communication device of connection information related to the acquired connection with the first wireless communication device via the second wireless interface; The second wireless communication device is a wireless interface wirelessly connected to one of the first and third wireless communication devices as a station, and the wireless interface is wirelessly connected to the third wireless communication device Then, in response to receiving the connection information from the third wireless communication device, the wireless connection with the third wireless communication device is disconnected, and the wireless interface is set based on the connection information. A connection switching unit for wirelessly connecting to the wireless communication device.

  As described above, the wireless communication devices constituting the wireless communication system exchange information with each other, so that each user can wirelessly connect to an appropriate connection destination without being aware of it.

  A wireless communication method according to an aspect of the present invention includes a first wireless interface that is a logical communication interface wirelessly connected to a first wireless communication apparatus as a station, and the first wireless communication apparatus as an access point. A method in which a third wireless communication apparatus comprising a second wireless interface that is a logical communication interface wirelessly connected to a different second wireless communication apparatus performs wireless communication with the first and second wireless communication apparatuses It is. Specifically, connection information regarding the connection with the first wireless communication device acquired through the first wireless interface in response to wireless connection with both the first and second wireless communication devices. And a connection information notifying step of notifying the second wireless communication apparatus through the second wireless interface.

  A program according to an aspect of the present invention includes a first wireless interface that is a logical communication interface wirelessly connected to a first wireless communication apparatus as a station, and a first wireless interface that is different from the first wireless communication apparatus as an access point. A third wireless communication apparatus including a second wireless interface that is a logical communication interface wirelessly connected to the second wireless communication apparatus causes the first and second wireless communication apparatuses to perform wireless communication. Specifically, connection information regarding the connection with the first wireless communication device acquired through the first wireless interface in response to wireless connection with both the first and second wireless communication devices. And a connection information notification step of notifying the second wireless communication apparatus through the second wireless interface.

  An integrated circuit according to one embodiment of the present invention performs wireless communication with first and second wireless communication devices. Specifically, a first wireless interface, which is a logical communication interface wirelessly connected to the first wireless communication device as a station, and a logical connection wirelessly connected to the second wireless communication device as an access point. The first wireless communication apparatus acquired through the first wireless interface in response to the wireless connection to both the second wireless interface, which is a secure communication interface, and both the first and second wireless communication apparatuses A connection information notification unit for notifying the second wireless communication apparatus of connection information related to the connection to the second wireless communication device through the second wireless interface.

  Note that the present invention can be realized not only as a wireless communication device but also as an integrated circuit that implements the functions of the wireless communication device, or as a program that causes a computer to execute such functions. Needless to say, such a program can be distributed via a recording medium such as a CD-ROM and a transmission medium such as the Internet.

  As described above, the wireless communication devices constituting the wireless communication system exchange information with each other, so that each user can wirelessly connect to an appropriate connection destination without being aware of it.

It is a figure which shows the home network system which concerns on one Embodiment of this invention. It is a block diagram of each apparatus which comprises the home network system of FIG. It is a flowchart which shows the connection information notification process of the BD recorder previously wirelessly connected with AP. It is a flowchart which shows the connection information notification process of the BD recorder previously wirelessly connected with TV. It is a flowchart which shows the connection switching process of television. It is a figure which shows the state by which the access point and BD recorder are wirelessly connected. FIG. 6 is a diagram illustrating a state where the BD recorder and the television are further wirelessly connected from the state of FIG. 5. FIG. 7 is a diagram illustrating a state where the wireless connection between the BD recorder and the television is disconnected and the access point and the television are newly wirelessly connected from the state of FIG. 6. It is a figure which shows the state in which the BD recorder and the television are wirelessly connected.

  Hereinafter, a home network system (wireless communication system) 1 according to an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a schematic diagram showing a home network system 1. FIG. 2 is a block diagram of each device constituting the home network system 1.

  As shown in FIG. 1, the home network system 1 includes an access point (hereinafter referred to as “AP”) 10, a BD (Blu-ray Disc) recorder (hereinafter referred to as “BD”) 20, a television ( (Hereinafter referred to as “TV”) 30. The home network system 1 is typically a wireless network defined by IEEE 802.11.

  The AP 10 is an example of a relay device, and includes a wireless communication I / F (Inter Face) 110, a communication I / F 120, and a relay unit 130 as illustrated in FIG.

  The wireless communication I / F 110 includes at least first and second wireless I / Fs 111 and 112. In the embodiment of FIG. 2, the first wireless I / F 111 is wirelessly connected to the BD 20 as an access point. The second wireless I / F 112 is wirelessly connected to the TV 30 as an access point.

  The communication I / F 120 is connected to the Internet 2 directly or via a router (not shown). The communication I / F 120 may be a wired communication I / F defined by IEEE 802.3 or a wireless communication I / F defined by IEEE 802.11.

  The relay unit 130 relays a packet from a terminal connected to any one of the first wireless I / F 111, the second wireless I / F 112, and the communication I / F 120 to another terminal. For example, a content acquisition request from the BD 20 to a server (not shown) on the Internet 2 is received by the first wireless I / F 111 and transmitted from the communication I / F 120. Alternatively, the content distributed from the BD 20 to the TV 30 is received by the first wireless I / F 111 and transmitted from the second wireless I / F 112.

  The BD 20 is an example of a content recording apparatus. As illustrated in FIG. 2, the BD 20 includes a wireless communication I / F 210, a connection information notification unit 220, a content acquisition unit 230, a content distribution unit 240, and a storage unit 250. Is provided.

  The wireless communication I / F 210 includes at least first and second wireless I / Fs 211 and 212. In the embodiment of FIG. 2, the first wireless I / F 211 is wirelessly connected to the AP 10 as a station. The second wireless I / F 212 is wirelessly connected to the TV 30 as an access point. Note that the first and second wireless I / Fs 211 and 212 are logical communication I / Fs included in the physical wireless communication I / F 210.

  The connection information notification unit 220 notifies the TV 30 connected to the second wireless I / F 212 of the connection information of the AP 10 connected to the first wireless I / F 211. Note that the connection information includes, for example, an SSID (Service Set Identifier) for identifying the AP 10, an authentication method, an encryption method, an encryption key, and the like.

  The content acquisition unit 230 acquires content from the content server (not shown) on the Internet 2 via the AP 10. The acquired content is stored in the storage unit 250. The content distribution unit 240 distributes the content stored in the storage unit 250 to the TV 30 or the like. The content may be distributed to the TV 30 via the first wireless I / F 211 and the AP 10, or may be directly distributed to the TV 30 via the second wireless I / F 212. The storage unit 250 stores content, and may be a DVD (Digital Versatile Disk), an HDD, a nonvolatile memory, or the like in addition to the BD.

  The TV 30 is an example of a content display device, and includes a wireless communication I / F 310, a connection switching unit 320, a content acquisition unit 330, and a display unit 340 as illustrated in FIG.

  The wireless communication I / F 310 is wirelessly connected to either the AP 10 or the BD 20 as a station.

  The connection switching unit 320 switches the connection destination of the wireless communication I / F 310. Typically, in a state where the wireless communication I / F 310 is wirelessly connected to the BD 20, in response to receiving the connection information of the AP 10 from the BD 20, the wireless connection with the BD 20 is disconnected and based on the connection information. Then, the wireless communication I / F 310 is wirelessly connected to the AP 10.

  The content acquisition unit 330 acquires content from other devices through the wireless communication I / F 310. Specifically, content is downloaded directly from the BD 20 in a state where the wireless communication I / F 310 is wirelessly connected to the BD 20. Alternatively, in a state where the wireless communication I / F 310 is wirelessly connected to the AP 10, the content is downloaded from the BD 20 via the AP 10, or the content is downloaded from the content server on the Internet 2 via the AP 10.

  The display unit 340 displays the content acquired by the content acquisition unit 330. Although the specific example of the display part 340 is not specifically limited, All display apparatuses, such as a liquid crystal display, a plasma display, an organic electroluminescent display, and a cathode ray tube, are employable. Further, instead of the display device or in addition to the display device, an audio output device (speaker or the like) that outputs sound may be included.

  Next, the operation of the home network system 1 configured as described above will be described with reference to FIGS. 3A to 8. FIG. 3A is a flowchart showing a connection information notification process of the BD 20 that is first wirelessly connected to the AP 10. FIG. 3B is a flowchart showing connection information notification processing of the BD 20 that is wirelessly connected to the TV 30 first. FIG. 4 is a flowchart showing connection switching processing of the TV 30. 5 to 8 are state transition diagrams showing connection states of the AP 10, the BD 20, and the TV 30. 5 to 8 indicate that the tip side of the arrow is a device that functions as an access point, and that the root side of the arrow is a device that functions as a station.

  First, with reference to FIG. 3A, the process performed by BD20 is demonstrated. This example is an example when the AP 10 and the BD 20 are wirelessly connected first.

  First, when the AP 10 and the BD 20 are installed within a range where wireless connection is possible, the BD 20 wirelessly connects the first wireless I / F 211 as a station with the AP 10 (S11). Specifically, the BD 20 first broadcasts “Probe Request (search request signal)”. The AP 10 that has received “Probe Request” from the BD 20 transmits “Probe Response (search response signal)” to the BD 20. Thereafter, key exchange processing and association processing for authentication and encryption are performed. By executing such a sequence, the wireless connection between the AP 10 and the BD 20 is established. At this time, the first wireless I / F 211 of the BD 20 holds connection information with the AP 10. Similarly, the first wireless I / F 111 of the AP 10 holds connection information with the BD 20.

  The trigger for starting the wireless connection sequence may be given by the user, or when the BD 20 constantly monitors the presence of the AP 10 and recognizes the presence of the AP 10 within a range where wireless connection is possible, the wireless connection is automatically performed. A connection sequence may be started.

  As a result, as shown in FIG. 5, infrastructure mode wireless connection is established with the AP 10 as an access point and the BD 20 as a station. That is, thereafter, the BD 20 can access devices on the Internet 2 via the AP 10. Specifically, the content acquisition unit 230 of the BD 20 can download the content from the content server by transmitting a content acquisition request to the content server on the Internet 2.

  In the background of the above process, the BD 20 checks whether there is a search request from the TV 30 (S12). In this process, the BD 20 may check for a search request signal from the TV 30 at predetermined intervals, or the second wireless I / F 212 that recognizes the search request from the TV 30 generates an interrupt process. Also good.

  When the search request is acquired from the TV 30 (Yes in S12), the BD 20 wirelessly connects the second wireless I / F 212 to the TV 30 as an access point. At this time, the second wireless I / F 212 of the BD 20 holds connection information with the TV 30. Similarly, the wireless communication I / F 310 of the TV 30 holds connection information with the BD 20. As a result, as shown in FIG. 6, a wireless connection based on the Wi-Fi protocol or the like is established with the BD 20 as an access point and the TV 30 as a station.

  At this time, the content acquisition unit 330 of the TV 30 can acquire content from the BD 20 by directly transmitting a content acquisition request to the BD 20. However, content cannot be acquired from a content server on the Internet 2. This is because the BD 20 does not have a function of relaying packets addressed to the content server received from the TV 30 to the AP 10.

  Therefore, after the wireless connection with the TV 30 is established, the connection information notification unit 220 of the BD 20 sends the connection information regarding the connection with the AP 10 acquired through the first wireless I / F 211 to the TV 30 through the second wireless I / F 212. Notification is made (S15). After notifying the connection information, the BD 20 disconnects the wireless connection with the TV 30 (S16). This process may explicitly disconnect the wireless connection from the BD 20, or may wait for the TV 30 to disconnect the wireless connection.

  Next, processing executed by the BD 20 will be described with reference to FIG. 3B. In this example, the BD 20 and the TV 30 are first wirelessly connected.

  On the other hand, when the BD 20 and the TV 30 are installed within a range where wireless connection is possible, the BD 20 wirelessly connects the second wireless I / F 212 to the TV 30 as an access point (S13). At this time, the second wireless I / F 212 of the BD 20 holds connection information with the TV 30. Similarly, the wireless communication I / F 310 of the TV 30 holds connection information with the BD 20.

  The trigger for starting the wireless connection sequence may be given by the user, or when one of the BD 20 and the TV 30 constantly monitors the presence of the other and recognizes the presence of the other device within the wireless connection range. Thus, the wireless connection sequence may be automatically started.

  As a result, as shown in FIG. 8, a wireless connection based on the Wi-Fi protocol or the like is established with the BD 20 as an access point and the TV 30 as a station. That is, thereafter, the TV 30 can directly access the BD 20.

  Specifically, first, the content acquisition unit 330 of the TV 30 transmits a content acquisition request to the BD 20 through the wireless communication I / F 310. The content distribution unit 240 of the BD 20 reads content corresponding to the content acquisition request from the storage unit 250 through the second wireless I / F 212 and distributes the content to the TV 30 through the second wireless I / F 212. Then, the content acquisition unit 330 of the TV 30 causes the display unit 340 to display the content acquired through the wireless communication I / F 310.

  In the background of the above process, the BD 20 monitors the presence of the AP 10 (S14). In this process, the BD 20 may check the presence of the AP 10 at predetermined intervals, or may generate an interrupt process in response to an instruction from the user.

  When the presence of the AP 10 is detected (Yes in S14), the BD 20 connects the first wireless I / F 211 to the AP 10 as a station. At this time, the first wireless I / F 211 of the BD 20 holds connection information with the AP 10. Similarly, the first wireless I / F 111 of the AP 10 holds connection information with the BD 20. As a result, as shown in FIG. 6, infrastructure mode wireless connection is established with the AP 10 as an access point and the BD 20 as a station.

  Since the subsequent processes (S15 to S16) have already been described, description thereof will be omitted. When the BD 20 executes the above-described processing, it is possible to notify the TV 30 of connection information of the AP 10 regardless of whether the AP 10 or the TV 30 is wirelessly connected to the BD 20 first.

  Next, processing executed by the TV 30 will be described with reference to FIG.

  First, when the BD 20 and the TV 30 are installed within a range where wireless connection is possible, the TB 30 connects the wireless communication I / F 310 to the BD 20 as a station (S21). At this time, the second wireless I / F 212 of the BD 20 holds connection information with the TV 30. Similarly, the wireless communication I / F 310 of the TV 30 holds connection information with the BD 20.

  As a result, a wireless connection based on the Wi-Fi protocol is established with the BD 20 as an access point and the TV 30 as a station. As a result, as described above, the content can be distributed from the BD 20 to the TV 30.

  Also, in the background of the above process, the TV 30 monitors reception of connection information from the BD 20 (S22). In this process, the TV 30 may check for the presence of connection information at predetermined intervals, or the wireless communication I / F 310 that has recognized the connection information may generate an interrupt process. Note that the connection information transmitted from the BD 20 is connection information with the AP 10.

  When the connection information is received (Yes in S22), the connection switching unit 320 of the TV 30 disconnects the wireless connection with the BD 20 (S23). Then, the connection switching unit 320 wirelessly connects the wireless communication I / F 310 with the AP 10 as a station based on the acquired connection information (S24). At this time, the second wireless I / F 112 of the AP 10 holds connection information with the TV 30. Similarly, the wireless communication I / F 310 of the TV 30 holds connection information with the AP 10.

  As a result, as shown in FIG. 7, infrastructure mode wireless connection is established with the AP 10 as an access point and the TV 30 as a station. As a result, the TV 30 can access the BD 20 and the content server on the Internet 2 via the AP 10.

  Specifically, the content acquisition unit 330 of the TV 30 can acquire a content from the BD 20 by transmitting a content acquisition request to the BD 20 via the AP 10. In addition, the content acquisition unit 330 can also transmit a content acquisition request to the content server on the Internet 2 via the AP 10 and acquire the content from the content server.

  As described above, the wireless communication devices (AP 10, BD 20, and TV 30) constituting the home network system 1 exchange information with each other, so that each user is wirelessly connected to an appropriate connection destination without being conscious of the user. . As a result, troubles such as the inability of the TV 30 to connect to the Internet 2 can be avoided, so that the work burden on the user can be greatly reduced.

  In the above embodiment, when the TV 30 acquires content from the BD 20 in the state of connection as shown in FIG. 7, the TV 30 and the BD 20 may be directly connected again. Thereby, compared with the case where it downloads via AP10, traffic can be reduced.

  Moreover, although the home network system 1 in the above-described embodiment has been illustrated with the AP 10, BD 20, and TV 30, the present invention is not limited thereto, and other devices can be connected. For example, a personal computer and an imaging device such as a video camera or a still camera may be included. In addition to the functions of the BD 20 and the TV 30, these may have a function of uploading content held by itself to a Web server or the like on the Internet 2 via the AP 10.

  Furthermore, in the above embodiment, the home network system 1 that mainly connects AV devices has been described. However, the present invention is not limited to this, and can be applied to a LAN (Local Area Network) to which a plurality of personal computers are connected. Needless to say.

(Other variations)
Although the present invention has been described based on the above embodiment, it is needless to say that the present invention is not limited to the above embodiment. The following cases are also included in the present invention.

  Specifically, each of the above devices is a computer system including a microprocessor, ROM, RAM, a hard disk unit, a display unit, a keyboard, a mouse, and the like. A computer program is stored in the RAM or the hard disk unit. Each device achieves its functions by the microprocessor operating according to the computer program. Here, the computer program is configured by combining a plurality of instruction codes indicating instructions for the computer in order to achieve a predetermined function.

  Part or all of the constituent elements constituting each of the above-described devices may be configured by one system LSI (Large Scale Integration). The system LSI is an ultra-multifunctional LSI manufactured by integrating a plurality of component parts on one chip, and specifically, a computer system including a microprocessor, a ROM, a RAM, and the like. is there. A computer program is stored in the RAM. The system LSI achieves its functions by the microprocessor operating according to the computer program.

  Some or all of the constituent elements constituting each of the above devices may be configured as an IC card or a single module that can be attached to and detached from each device. The IC card or module is a computer system that includes a microprocessor, ROM, RAM, and the like. The IC card or the module may include the super multifunctional LSI described above. The IC card or the module achieves its functions by the microprocessor operating according to the computer program. This IC card or this module may have tamper resistance.

  The present invention may be the method described above. Further, the present invention may be a computer program that realizes these methods by a computer, or may be a digital signal composed of a computer program.

  The present invention also relates to a computer-readable recording medium capable of reading a computer program or a digital signal, such as a flexible disk, hard disk, CD-ROM, MO, DVD, DVD-ROM, DVD-RAM, BD (Blu-ray Disc), It may be recorded in a semiconductor memory or the like. Further, it may be a digital signal recorded on these recording media.

  In the present invention, a computer program or a digital signal may be transmitted via an electric communication line, a wireless or wired communication line, a network represented by the Internet, a data broadcast, or the like.

  The present invention may also be a computer system including a microprocessor and a memory, the memory storing the computer program, and the microprocessor operating according to the computer program.

  Further, the program or digital signal may be recorded on a recording medium and transferred, or the program or digital signal may be transferred via a network or the like, and may be executed by another independent computer system.

  The above embodiment and the above modification examples may be combined.

  As mentioned above, although embodiment of this invention was described with reference to drawings, this invention is not limited to the thing of embodiment shown in figure. Various modifications and variations can be made to the illustrated embodiment within the same range or equivalent range as the present invention.

  The present invention is advantageously used for a wireless communication device, particularly an AV device having a wireless communication function.

1 Home network system 2 Internet 10 AP
20 BD
30 TV
110, 210, 310 Wireless communication I / F
111, 211 First wireless I / F
112, 212 Second wireless I / F
120 Communication I / F
DESCRIPTION OF SYMBOLS 130 Relay part 220 Connection information notification part 230,330 Content acquisition part 240 Content distribution part 250 Storage part 320 Connection switching part 340 Display part

Claims (11)

A wireless communication device as a third wireless communication device that performs wireless communication with the first and second wireless communication devices,
A first wireless interface that is a logical communication interface that is wirelessly connected to the first wireless communication device as a station;
A second wireless interface which is a logical communication interface wirelessly connected to the second wireless communication device as an access point;
In response to being wirelessly connected to both the first and second wireless communication devices, connection information regarding the connection with the first wireless communication device acquired through the first wireless interface is obtained as the second information. A wireless communication apparatus comprising: a connection information notification unit that notifies the second wireless communication apparatus through a wireless interface. The connection information notification unit is configured to send the connection information to the second wireless communication device when the wireless connection with the second wireless communication device is established in a state of wireless connection with the first wireless communication device. The wireless communication apparatus according to claim 1, wherein the wireless communication apparatus is notified. The connection information notification unit is configured to send the connection information to the second wireless communication device when the wireless connection with the first wireless communication device is established in a state of wireless connection with the second wireless communication device. The wireless communication apparatus according to claim 1, wherein the wireless communication apparatus is notified. The wireless communication device according to claim 1, wherein the connection information includes an SSID (Service Set Identifier), an authentication method, an encryption method, and an encryption key of the first wireless communication device. The wireless communication device further includes:
A storage unit for storing content;
A content acquisition unit that acquires content via the first wireless interface and stores the content in the storage unit;
The wireless communication according to claim 1, further comprising: a content distribution unit that distributes content stored in the storage unit to the second wireless interface via the first wireless interface. apparatus. A wireless communication device as the second wireless communication device according to any one of claims 1 to 5,
A wireless interface wirelessly connected to any one of the first and third wireless communication devices as a station;
Wireless connection with the third wireless communication device in response to receiving the connection information from the third wireless communication device while the wireless interface is wirelessly connected to the third wireless communication device. And a connection switching unit that wirelessly connects the wireless interface to the first wireless communication device based on the connection information. The wireless communication device further includes:
A content acquisition unit for acquiring content via the wireless interface;
The wireless communication apparatus according to claim 6, further comprising: a display unit that displays the content acquired by the content acquisition unit. A wireless communication system comprising a first wireless communication device that functions as an access point, a second wireless communication device that functions as a station, and a third wireless communication device that functions as both an access point and a station,
The third wireless communication device is:
A first wireless interface that is a logical communication interface that is wirelessly connected to the first wireless communication device as a station;
A second wireless interface which is a logical communication interface wirelessly connected to the second wireless communication device as an access point;
In response to being wirelessly connected to both the first and second wireless communication devices, connection information regarding the connection with the first wireless communication device acquired through the first wireless interface is obtained as the second information. A connection information notification unit for notifying the second wireless communication device through a wireless interface;
The second wireless communication device is:
A wireless interface wirelessly connected to any one of the first and third wireless communication devices as a station;
Wireless connection with the third wireless communication device in response to receiving the connection information from the third wireless communication device while the wireless interface is wirelessly connected to the third wireless communication device. And a connection switching unit that wirelessly connects the wireless interface to the first wireless communication device based on the connection information. A first wireless interface, which is a logical communication interface wirelessly connected to the first wireless communication device as a station, and a second wireless communication device different from the first wireless communication device as an access point are wirelessly connected. A wireless communication method in which a third wireless communication device including a second wireless interface that is a logical communication interface performs wireless communication with the first and second wireless communication devices,
In response to the wireless connection with both the first and second wireless communication devices, connection information regarding the connection with the first wireless communication device acquired through the first wireless interface is obtained. A wireless communication method comprising a connection information notification step of notifying the second wireless communication device through a wireless interface. A first wireless interface, which is a logical communication interface wirelessly connected to the first wireless communication device as a station, and a second wireless communication device different from the first wireless communication device as an access point are wirelessly connected. A third wireless communication device comprising a second wireless interface that is a logical communication interface is a program that allows wireless communication with the first and second wireless communication devices,
In response to the wireless connection with both the first and second wireless communication devices, connection information regarding the connection with the first wireless communication device acquired through the first wireless interface is obtained. A program comprising a connection information notifying step of notifying the second wireless communication device through a wireless interface. An integrated circuit that performs wireless communication with the first and second wireless communication devices,
A first wireless interface that is a logical communication interface that is wirelessly connected to the first wireless communication device as a station;
A second wireless interface which is a logical communication interface wirelessly connected to the second wireless communication device as an access point;
In response to the wireless connection with both the first and second wireless communication devices, connection information regarding the connection with the first wireless communication device acquired through the first wireless interface is obtained. An integrated circuit comprising: a connection information notification unit that notifies the second wireless communication device through a wireless interface.

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