JP2015207801A - communication device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a communication device capable of easy processing even in a long distance when performing pairing processing.SOLUTION: A remote control device 100 and a control target device 200 perform Bluetooth communication through Bluetooth wireless communication units 131, 231 provided in the respective devices, and also perform one-to-one communication through voice communication units 111, 211 provided in the respective devices, using a telephone line. The remote control device 100 and the control target device 200 implement a virtual link by the communication using this telephone line, to perform the pairing processing through the virtual link (in other words, a real link using Bluetooth communication is not used at the pairing processing).

Description

  The present invention relates to a communication device, and more particularly to a communication device that performs pairing.

In recent years, with the popularization of smartphones (SmartPhone), Bluetooth (registered trademark), which is a short-range communication standard that does not use the Internet infrastructure, can be used for low-cost and high-speed mutual communication between digital devices with low power consumption. Since then, the use of Bluetooth) and ZigBee (registered trademark) is also spreading.
On the other hand, since Bluetooth communication is omnidirectional communication, when a device (digital device) and another device perform Bluetooth communication, a device (user) of each device is not intended to be operated by mistake. There was a risk.
In order to use Bluetooth communication having such properties in other digital devices, a process called pairing is required.
In the pairing process, in order to allow irrelevant digital devices to communicate normally with each other (that is, in a state in which they are not communicating with each other), they are interconnected using the Bluetooth communication standard, and information on the Bluetooth communication standard ( This is an operation of exchanging and registering addresses (such as an address for Bluetooth communication), and is sometimes called bonding or combination. This pairing process is performed for security so as not to communicate with an irrelevant device (a user does not intend to communicate). By specifying the exchanged / mutually registered address and performing Bluetooth communication, it is possible to prevent the device not intended by the user from being operated by mistake.
Conventionally, the normal pairing process is performed by the following standard procedure.
(1) Authentication processing ・ Search and select a partner device to be connected (paired) ・ Authentication processing with the selected partner device (input of authentication code, etc.)
(2) Pairing processing-Mutual exchange of information necessary for pairing processing (pairing information) stored in each-Storage and storage of exchanged pairing information as paired information in each other device As a general rule, devices that have been paired successfully once this paired information has been stored / stored need to be paired again when the Bluetooth communication standard is used. Disappear.
The operation related to the above-described pairing process, particularly the authentication process, is an operation that must be manually input by the user of the device. For this reason, the user feels troublesome and takes a long operating time.

Therefore, in order to simplify these operations, there have been techniques as described in Patent Document 1 and Patent Document 2.
In the technique described in Patent Document 1, first, a pairing start signal is transmitted using IrDA infrared communication to instruct a connection start. Thereafter, an operation related to pairing (that is, the counterpart device) Search and selection, verification of authentication code, etc.) are performed using the Bluetooth communication standard.
As described above, in the technique described in Patent Document 1 described above, the pairing operation itself is performed according to the Bluetooth communication standard, and complicated and time-consuming operations such as search and selection of the counterpart device and confirmation of the authentication code still exist. I did.

Patent Document 2 describes a technique for performing a pairing operation using communication other than Bluetooth communication. More specifically, a technology that enables network association, pairing, or authentication processing using NFC communication (Near Field Communication / Near Field Communication), and a user who has been authenticated can start using the image forming apparatus. Is described.
However, in the technique described in Patent Document 2, since the NFC token is transferred to the NFC reader / writer device, the devices that perform pairing and authentication exist at a short distance (several centimeters to about 1 meter). It was necessary to have.

JP 2009-246487 A JP 2010-136016 A

  Therefore, an object of the present invention is to provide a communication device that can easily perform processing at a long distance when performing pairing processing.

In order to achieve the above object, in the present invention of claim 1, mutual communication is performed between a device specifying information input unit and a partner device specified using the device specifying information input to the device specifying information input unit. A pairing communication unit that performs pairing processing by the communication unit, a storage unit that stores pairing information of self and a partner device necessary for pairing, and the storage A Bluetooth communication unit that performs Bluetooth communication with a paired counterpart device based on the pairing information stored in the unit, wherein the pairing communication unit further includes: First pairing means for converting self pairing information stored in the storage unit into sound data of a predetermined format, and pairing the converted sound data of the predetermined format Transmitting means for transmitting to the counterpart device, and receiving means for receiving the sound data of the pairing information of the counterpart device, which is transmitted from the counterpart device for transmitting the sound data and converted into the predetermined format by the counterpart device; The second conversion means for converting the sound data received by the reception means into the original pairing information, and the pairing information converted by the second conversion means is recorded in the storage unit as the pairing information of the counterpart device And a recording device.
According to a second aspect of the present invention, there is provided the communication apparatus according to the first aspect, wherein the communication means is a one-to-one communication using a telephone line.

  According to the present invention, by performing pairing processing using communication with a counterpart device specified using device specifying information, pairing processing can be easily performed even when the device is at a long distance. Can be provided.

It is a functional block diagram for demonstrating the communication apparatus which concerns on embodiment of this invention. It is a block diagram for demonstrating the communication apparatus which concerns on embodiment of this invention. It is a flowchart for demonstrating the pairing process performed by the communication apparatus which concerns on embodiment of this invention. It is a figure for demonstrating the layer (layer) of the Bluetooth communication standard which provides an interface in the pairing process which concerns on embodiment of this invention. It is a schematic diagram for demonstrating the interface information data transmitted / received by the pairing process which concerns on embodiment of this invention.

(1) Outline of Embodiment Hereinafter, an outline of an embodiment of the present invention will be described.
As an example of a communication device according to an embodiment of the present invention, a long-distance operation device and an operated device will be described as examples.
The remote operation device and the operated device according to the present embodiment are communication devices capable of Bluetooth communication by the Bluetooth wireless communication unit provided in each. In addition to the Bluetooth communication, voice communication over a telephone line performed one-to-one after specifying a partner device by a voice call communication unit provided in each of the devices is possible.
The remote control device and the operated device according to the present embodiment construct a virtual link using this telephone line, and perform pairing processing via this virtual link (that is, use Bluetooth communication during the pairing processing). Do not use the actual link).
As described above, in this embodiment, in a device having a Bluetooth communication function, information necessary for pairing processing (pairing information) is exchanged using a virtual link constructed using a telephone line.
As a result, the pairing partner can be reliably identified, a procedure such as manual confirmation of the authentication code is not required, and further, the pairing process can be executed even at a long distance.

(2) Details of Embodiment Hereinafter, details of the embodiment of the present invention will be described with reference to FIGS. 1 to 5.
FIG. 1 is a functional block diagram for explaining a remote operation device 100 and an operated device 200 which are communication devices according to an embodiment of the present invention.
In the present embodiment, description will be given using the remote operation device 100 as a communication device for remote operation and the operated device 200 as a communication device for remote operation.
Depending on the situation, the remote operation device 100 may be an operated device operated from another device, or the operated device 200 may be a remote operation device that operates another device.
In the present embodiment, the remote operation device 100 and the operated device 200 are basically the same in function blocks (components) constituting each device, so each function block will be described using the remote operation device 100. About the operated device 200, the same name is given to each functional block, and the description is omitted.

The remote operation device 100 includes a wireless communication control unit 110, a virtual link control unit 120, and a Bluetooth communication unit (BT communication unit) 130. The Bluetooth communication unit 130 includes a BT wireless communication unit 131 that performs Bluetooth communication. Further, the radio communication control unit 100 includes a voice call communication unit 111 that performs voice communication via a telephone line that specifies a counterpart device by a telephone number (device specifying information) and establishes a one-to-one communication relationship.
In the present embodiment, the voice call communication unit 111 is a telephone line that uses a voice signal (tone signal) based on DTMF (Dual Tone Multi-Frequency) of a push line. However, the present invention is not limited to this. It may be configured to use voice communication using a pulse signal) or a FAX line.

  As a device having the BT wireless communication unit 131 and the voice call communication unit 111 described above, the remote control device 100 is, for example, a PHS (Personal Handy System) with a Bluetooth communication function, or a 3G (Bluetooth) communication function. A voice telephone device such as a third generation mobile communication system (3rd Generation), or a voice telephone device such as LTE (Long Term Evolution) to which a communication function by Bluetooth is added can be considered. In addition, a FAX device to which a communication function by Bluetooth is added can be considered.

The virtual link control unit 120 of the remote operation device 100 converts data necessary for pairing processing between the remote operation device 100 and the operated device 200 into sound data (for example, DTMF) in a form that can be communicated by the voice call communication unit 111. The data converter 121 is provided.
In addition, the wireless communication control unit 110 sends the converted sound data converted by the data conversion unit 121 to the voice call communication unit 111 of the wireless communication control unit 110 through an interface unit (not shown).
The data converter 121 also has a function of reconverting sound data received from the counterpart device (operated device 200) that performs the pairing process into the original state (Bluetooth communication standard data).

The wireless communication control unit 110, the virtual link control unit 120, and the Bluetooth communication unit 130 of the remote operation device 100 are realized by a CPU (Central Processing Unit), a ROM (Read Only Memory), a RAM (Random Access Memory), and the like, and Bluetooth communication. Programs necessary for pairing processing, such as a program for causing the unit 130 to function as a short-range wireless communication unit and a program for generating data necessary for pairing processing as data that can be transmitted / received (exchanged) between devices. Saved.
The short-range wireless communication unit (FIG. 2: short-range wireless communication units 1300 and 2300) and data transmitted and received during the pairing process (FIG. 5) will be described later.
The Bluetooth communication unit 130 includes a pairing information storage unit 132 that stores its own information (data) necessary for the pairing process to be sent to the partner operated device 200 and the pairing process received from the partner operated device 200. Receiving pairing information storage unit 133 for storing necessary information, and extracting data stored in reception pairing information storage unit 132 and reception pairing information storage unit 133, and relating to a partner device received from a pairing partner device A pairing information storage control unit 134 that performs control such as writing data is provided.
Furthermore, after the data necessary for this pairing process is mutually exchanged and stored between the remote operation device 100 and the operated device 200, a link key necessary for pairing generated from these pieces of information is obtained. A link key generation / storage unit 135 that generates and stores the link key and stores the generated link key in the link key generation / storage unit 135 completes the pairing process.

In the present embodiment, mutual storage refers to information stored in the pairing information storage unit 132 of the remote operation device 100 being transmitted to the operated device 200 and stored in the reception pairing information storage unit 233. This refers to processing in which information stored in the pairing information storage unit 232 of the operation device 200 is transmitted to the remote operation device 100 and stored in the reception pairing information storage unit 133.
In this embodiment, the “transmission” is performed after being converted into a sound data format, and the “save” is performed using data in a format returned to the Bluetooth communication standard.

As described above, the remote device operation 100 according to the present embodiment stores pairing information related to the self device in the pairing information storage unit 132. Then, pairing information regarding the paired partner operated device 200 obtained in the procedure described later, or post-pairing information generated from the pairing information of the own device and the pairing information of the partner device (for example, a link key or the like) ) Is stored (recorded) in the received pairing information storage unit 133.
In the present embodiment, “pairing information” and “data transferred (transmission / reception / exchange) during pairing processing” are not the same, and details will be described later.

The remote operation device 100 and the operated device 200 configured as described above form a voice call link (general voice call link) with the voice call communication units 111 and 211 via the communication station 300. In this embodiment, this voice call link exists separately from the actual link established by communication (main communication) between the BT communication units 130 and 230 using the Bluetooth standard. That is, it is established as a virtual link for pairing processing (voice communication by the pairing communication unit).
More specifically, first, data including pairing information necessary for the BT wireless communication unit 131 and the BT wireless communication unit 231 to start Bluetooth communication is used as a voice call between the voice call communication unit 111 and the voice call communication unit 211 ( Exchange (send and receive) by voice communication. However, the pairing information stored in each communication device (pairing information storage unit 132, 232) according to the Bluetooth communication standard is data (sound that can be transmitted / received by a voice call different from the Bluetooth communication standard). Data / sound signal) is converted by the data converters 121 and 221 and exchanged.
Next, each communication device (the remote operation device 100 and the operated device 200) re-converts the received sound data pairing information into the original data form by the data converters 121 and 221 and receives the received pairing information. The data is stored in the storage units 133 and 233.

When the pairing between the remote operation device 100 and the operated device 200 is completed in this way, the remote operation device 100 disconnects the virtual link with the operated device 200, switches to the actual link, and starts the main communication by Bluetooth. .
Here, the remote operation device 100 and the operated device 200 generate a link key by the link key generation / storage units 135 and 235 from the stored pairing information and store it.
If the devices that have completed this pairing process are received, if the Bluetooth communication is interrupted or terminated, and if you want to start the Bluetooth communication again, receive pairing. By referring to the pairing information and the link key stored in the information storage units 133 and 233 and the link key generation / storage units 135 and 235, the communication by Bluetooth can be started.

With reference to FIG. 2, the functional operation of the pairing process according to the present embodiment will be described.
FIG. 2 is a block diagram for explaining the communication apparatus according to the present embodiment.
FIG. 2 shows a remote operation device 101 as a communication device on the remote operation side, and an operated device 201 as a communication device on the remote operation side.
In the present embodiment, as an example, the remote operation device 101 and the operated device 201 have the same basic configuration, so the same functions in each device are given the same names, and the description thereof is omitted.
In this embodiment, as an example, the remote operation device 101 is a communication device (PHS) having a Bluetooth function and a PHS voice call function, and the operated device 201 is a Bluetooth communication function and a PHS as in the remote operation device 101. A description will be given using a communication device (PHS) having a voice call function.
In the present embodiment, the remote operation device 101 and the operated device 201 are both communication devices (PHS) having a PHS voice call function, but the communication devices are not limited to PHS. In other words, devices that can communicate with each other after the other device is identified by inputting device identification information such as a telephone number into the device identification information input unit (122, 222). Good.

In the remote control device (PHS) 101 having the Bluetooth communication function, a Bluetooth stack configured by hierarchically combining information necessary for communication between Bluetooth devices is added to the short-range wireless communication unit (Bluetooth communication standard) 1300. Saved. The short-range wireless communication unit 1300 functionally corresponds to a program in the BT communication unit 130 (FIG. 1).
In the present embodiment, as an example, the Bluetooth stack includes an HCI 40A, an L2CAP 41A, a definition storage unit 42A, an SDP 43A, and an Application Layer 44A.

  The HCI 40A is an abbreviation for Host Controller Interface, and is a layer that defines an interface between hardware that controls Bluetooth communication and a higher-level mechanism that uses the function.

  L2CAP 41A is an abbreviation for Logical Link Control and Adaptive Protocol, and is a layer that defines how to use a logical path (actual link) set for exchanging information between Bluetooth devices. The contents define how to set up an actual link in response to an application (Application) request and how to transmit data transmitted and received by the application on the actual link.

  SDP43A is an abbreviation of Service Discovery Protocol, and automatically inquires about the information of Bluetooth devices existing in the communicable range, provided services, and service characteristics (such as what services are supported). It is a layer that defines the procedure. In Bluetooth communication, various services such as input devices, music devices, and video devices can be used. However, not all Bluetooth devices support all services. Therefore, the SDP 43A is used to search for what service the counterpart device supports, and is an essential protocol in Bluetooth communication.

The Application Layer 44A is a layer that defines the definition of what the user can actually use using Bluetooth communication (actual link). By creating this layer, the remote operation device 101 and the operated device 201 can be used as a device having a headphone function with a microphone, a speaker function, or a remote control function, for example. Note that the operation using the actual link is controlled by the Controller 1400 (2400).
In addition, Controller 1400 (2400) is a layer that defines a physical method of wireless communication that is at least necessary for Bluetooth communication. For example, basic parameters for performing wireless communication such as a use frequency and a modulation method, Time slot and frequency hopping pattern determination methods, packet configurations, security, and the like are defined.
On the base protocol layer that must be provided for “connecting” as the Bluetooth communication described above, the Application Layer 44A that defines what the Bluetooth communication is actually “used” is determined.
The basic wireless communication methods required for Bluetooth communication, such as basic parameters for wireless communication such as the frequency used and modulation method, time slot and frequency hopping pattern determination method, packet configuration, and security And the like, and other pairing information necessary for the pairing process are stored in one of the layers of the short-range wireless communication unit 1300 (2300).

The data conversion unit 30A converts data (pairing information) necessary for pairing processing stored in the Bluetooth standard format into a DTMF standard that can be transmitted and received by the PHS voice call unit 1110.
In addition, the data conversion unit 30A is in a state in which the PHS voice call unit 1110 has received the PHS voice link from the pairing partner device (operated device (PHS) 201) and has been converted into the DTMF standard by the operated device 201. Data including pairing information is converted back to the original state (Bluetooth standard).

Next, the operation of the pairing process performed between the remote operation device 101 configured as described above and the operated device 201 will be described with reference to FIGS.
FIG. 3 is a flowchart for explaining the pairing process performed by the communication apparatus according to the present embodiment.
First, the remote operation device 101 calls the operated device 201 (S10).
Specifically, the user of the remote operation device 101 inputs a telephone number assigned to the operated device 201 into the device identification information input unit 122 (for example, a display screen, a push button, a dial, etc.). Then, the PHS voice call unit 1110 calls the operated device 201 via a telephone line that starts mutual communication with the counterpart device specified by the telephone number (S10).
In this embodiment, since the pairing partner device is specified using a telephone line that starts mutual communication with the partner device specified by the telephone number, it was essential in the conventional pairing process using Bluetooth communication. The following flow can be omitted.
(1) Search for partner device (piconet signal transmission / reception)
(2) Selecting / specifying a pairing device from a plurality of candidate devices and confirming an authentication code transmitted / received for pairing

As described above, the user of the remote operation device 101 calls the operated device 201 using the telephone number assigned to the operated device 201, and the operated device 201 responds and receives the call (S110). ), The remote operation device 101 and the operated device 201 are connected by a telephone line (S15, 115).
When the remote control device 101 and the operated device 201 are connected by a telephone line, the virtual link control units 120 and 220 are logical communication channels on the data network for passing voice to each Bluetooth stack (Bt stack). An interface for a certain voice path (FIG. 2: Xa, Xb) is created (S20, S120).
The timing for creating the voice path interface in the Bt stack may be before the two are connected by a telephone line (that is, before S15 and S115).

Next, the virtual link control unit 120 transmits interface information for a Bluetooth voice path (hereinafter referred to as a Bt voice path) to the operated device 201 (virtual link control unit 220) (S25).
The virtual link control unit 220 receives the interface information for the Bt voice path sent from the remote operation device 101 (S125).
As described above, the virtual link control unit 120 (remote operation device 101) and the virtual link control unit 220 (operated device 201) exchange Bt voice path interface information with each other, and either of the short-range wireless communication units 1300 and 2300 By storing in the hierarchy (reception pairing information storage unit 133, 233) (S30, S130), a Bluetooth virtual link (Bt virtual link) is created between them (S35, S135).

Next, the virtual link controllers 120 and 220 exchange data necessary for the pairing process using the Bluetooth virtual link created as described above using a telephone line (S40 and S140).
More specifically, the virtual link control unit 120 connects the Bluetooth virtual link to the Bluetooth stack, and is stored in the short-range wireless communication unit 1300 (corresponding to the pairing information storage unit 132 in FIG. 1). Is prepared to send information (including pairing information) necessary for the operation to the operated device 201.
In other words, the virtual link control unit 120 converts the data format so that the transfer data including the pairing information of the self device can be transmitted to the operated device 201 using the Bluetooth virtual link via the telephone line. .
Specifically, first, the virtual link control unit 120 retrieves the pairing information of the own device stored in the short-range wireless communication unit 1300 (pairing information storage unit 132) in the Bluetooth standard data format.
Then, the data conversion unit 30A of the remote operation device 101 converts the extracted transfer data including pairing information in the Bluetooth standard data format into data in the DTMF format that can be transmitted through the Bluetooth virtual link via the telephone line.
Any standard that can transfer data on a voice call link (Bluetooth virtual link) may be used, and the present invention is not limited to the DTMF format.
The conversion processing of the pairing information from the Bluetooth standard data format to the DTMF data format is similarly performed in the operated device 201 (data conversion unit 30B).

The virtual link control unit 120 transmits the pairing information in the DTMF format converted by the data conversion unit 30A from the PHS voice call unit 1110 to the PHS voice call unit 2110 of the operated device 201 via the PHS voice link (Bluetooth virtual link). Send to.
In addition, it receives transfer data including pairing information of the operated device 201 that has been converted from the operated device 201 into the DTMF format by the data conversion unit 30B of the operated device 201.

In the present embodiment, data transferred using a Bluetooth virtual link (“data transferred during pairing process”, “data for transfer”, “transfer data”) is mainly exemplified by the following two. The contents. Note that the present invention is not limited to this configuration, and various applications are possible.
(A) Information relating to which Bluetooth layer is used in communication using the Bluetooth communication standard (actual link). This is attached as a header.
(B) Pairing information stored in the pairing information storage unit 132 (232) and the received pairing information storage unit 133 (233) (data according to SDP profile in the Bluetooth stack and a list / database of pairing information) .
These data (a) and (b) are converted into data in the DTMF format that can be transferred on the PHS voice link by the data converter 30A (30B) as described above, and exchanged on the PHS voice link.

Similarly, the virtual link control unit 220 also transmits the data for transfer including the pairing information of the self device, which is converted from the data format of the Bluetooth standard by the data conversion unit 30B of the operated device 201 to the DTMF format, to the PHS voice communication unit. 2110 is transmitted to the PHS voice call unit 1110 of the remote operation device 101 via the PHS voice link (Bluetooth virtual link). In addition, the PHS voice call unit 2110 receives the transfer data including the pairing information of the self-device of the remote operation device 101 converted from the remote operation device 101 into the DTMF format (S140).
In this way, the remote operation device 101 and the operated device 201 exchange data for transfer including pairing information via the PHS voice link which is a Bluetooth virtual link.

The data conversion unit 30A of the remote operation device 101 reconverts the transfer data received by the PHS voice call unit 1110 and including the pairing information in the DTMF format related to the operated device 201 into the data format of the Bluetooth standard. Of the reconverted data for transfer, the pairing information is basically paired information exchange processing in one of the layers of the short-range wireless communication unit 1300 (reception pairing information storage unit 133: FIG. 1). It is stored (saved) as completed partner device information (paired information) (S45).
Similarly, the virtual link control unit 220 also reconverts the transfer data including the pairing information in the DTMF format related to the remote operation device 101 into the data format of the Bluetooth standard by the data conversion unit 30B. The pairing information of the reconverted transfer data is basically paired information exchange processing in one of the layers of the short-range wireless communication unit 2300 (reception pairing information storage unit 233: FIG. 1). It is stored as the completed partner device information (S145).
In this way, the remote operation device 101 and the operated device 201 save the pairing information of the pairing counterpart device in the data format of the Bluetooth standard, so that the preparation for pairing is completed.

When the pairing preparation processing is completed and the mutual pairing information is stored in the remote operation device 101 and the operated device 201, the virtual link control unit 120 deletes the interface for the PHS voice link (S50). Then, the communication (call on the telephone line) by the PHS voice call unit 1110 is disconnected (S55). As a result, the PHS voice link (Bluetooth virtual link) created on the telephone line in S35 for pairing preparation processing is deleted.
Similarly, the virtual link control unit 220 deletes the interface for the PHS voice link (S150).
Then, the communication via the telephone line is disconnected (S155).
The timing for deleting the interface for the Bluetooth virtual link created in each Bluetooth stack is after the communication by each voice call unit (1110, 2110) is disconnected (that is, after S55 and S155). May be.

  As described above, the remote operation device 101 and the operated device 201 that have completed the pairing preparation processing, after disconnecting the communication by the PHS voice call unit 1110 and the PHS voice call unit 2110, can communicate with the Bluetooth standard that is an actual link. It becomes possible (S60, S160).

After starting communication in accordance with the Bluetooth standard, the remote operation device 101 creates and stores a link key in the link key creation / storage unit 135 and the operated device 201 in the link key creation / storage unit 235, respectively (S65). , S165).
When the link key is created, the remote operation device 101 and the operated device 201 perform device authentication using the link key (S70, S170).
As a result of device authentication, if the authentication processing result is OK, Bluetooth communication is continued and communication according to the application is performed. On the other hand, if the authentication processing result is NG, processing such as ending Bluetooth communication or displaying an error is performed (S180).
In the present embodiment, the link key is created and stored after Bluetooth communication between the remote operation device 101 and the remote operation device 201 (S65, S165). However, depending on the implementation of the Bluetooth stack, After the pairing information is stored (after S45 and S145), a link key may be created and stored in the remote operation device 101 and the operated device 201 from the pairing information.

As described above, in the present embodiment, data including pairing information is exchanged on a virtual link using a telephone line (voice paths by PHS voice call units 1110 and 2110). With this configuration, in this embodiment, it is possible to omit device selection, related manual confirmation processing, and the like for pairing information of a pairing counterpart device.
In addition, the remote operation device 101 and the operated device 201 according to the present embodiment do not use the Bluetooth communication that is the actual link for the pairing process, but the virtual link used for the pairing process is the standard for Bluetooth communication. Established according to the standard (Bluetooth stack) (S20, S120). With this configuration, the present embodiment can improve the development speed and reduce the development cost. At the same time, the present embodiment can be easily implemented because it can be realized by development based on the main interfaces conventionally provided in Bluetooth communication.

Next, the interface for creating the voice path for the Bluetooth virtual link (PHS voice link paths Xa and Xb) described in S20 to S35 and S120 to S135 will be described with reference to FIGS.
FIG. 4 is a diagram for explaining a layer of a Bluetooth communication standard (that is, a Bluetooth stack) in which an interface is provided in the pairing process according to the present embodiment.
FIG. 5 is a schematic diagram for explaining interface information data transmitted and received in the pairing process according to the present embodiment.
As described in S20 and S120 of FIG. 3, the remote operation device 101 and the operated device 201 according to the present embodiment perform pairing processing performed using a voice path (PHS voice link) by voice communication with Bluetooth. This is performed using one of the Bluetooth stacks provided in the short-range wireless communication units 1300 and 2300 related to communication.
The Bluetooth standard interface provided in the short-range wireless communication units 1300 and 2300 that the virtual link control unit 120 and the virtual link control unit 220 according to the present embodiment use during the pairing process is, for example, as shown in FIG. Layer (Layer / layer) is conceivable.
Note that these layers are the main interfaces defined for Bluetooth communication.

In the present embodiment, in consideration of the convenience of the user who uses the remote operation device 101 or the operated device 201 and the characteristics of each layer (can be expanded / cannot be expanded), the following examples 1 to 4 will be described below. Specifications are considered.
In the first embodiment, an interface is created in the HCI layer (FIG. 2; HCI 40A, 40B) of the Bluetooth stack provided in the short-range wireless communication units 1300, 2300.
The communication contents and method in this case are configured to process HCI packets including information related to the SDPs 43A and 43B on the PHS voice link which is a Bluetooth virtual link in accordance with the HCI standard of Bluetooth communication.
FIG. 5A is a schematic diagram of transfer data including pairing information (previously described (A) and (B)) transmitted and received in the case of the first embodiment.
For example, the basic configuration of data transmitted from the remote operation device 101 to the operated device 201 is an L2CAP layer (41A) that is obtained by framing an SDP profile that is data related to the SDP layer (43A) essential for pairing processing. ) And a header of the HCI layer (40A). The data created based on the Bluetooth stack in this way is converted into voice data by the data conversion unit 30A and transmitted from the PHS voice call unit 1110 to the PHS voice call unit 2110 of the operated device 201.
The pairing control unit 240 determines that the HCI layer (40B) of the Bluetooth stack is an interface from the header attached to the data received in this manner, and connects the interface to the HCI layer 40B of the Bluetooth stack of its own device. create.

As a second embodiment, an interface is provided in the L2CAP layer (FIG. 2; L2CAP 41A, 41B) of the Bluetooth stack provided in the short-range wireless communication units 1300, 2300.
The communication contents and method in this case are configured to process L2CAP packets including information related to SDP 43A and 43B on the PHS voice link which is a Bluetooth virtual link, in accordance with the L2CAP standard of Bluetooth communication.
FIG. 5B is a schematic diagram of data transmitted and received in the case of the second embodiment.
For example, when data is transmitted from the remote operation device 101 to the operated device 201, the header of the L2CAP layer (41A) is added to the frame of the SDP profile related to the SDP layer (43A) essential for the pairing process. The data created based on the Bluetooth stack in this way is converted into voice data by the data conversion unit 30A and transmitted from the PHS voice call unit 1110 to the PHS voice call unit 2110 of the operated device 201.
The pairing control unit 240 determines that the L2CAP layer (41B) of the Bluetooth stack is an interface from the header attached to the data received in this manner, and connects the interface to the L2CAP layer 41B of the Bluetooth stack of its own device. create.

As a third embodiment, an interface is provided in the SDP layer (FIG. 2; SDP 43A and 43B) in the Bluetooth stack provided in the short-range wireless communication units 1300 and 2300.
The communication contents and method in this case are configured to process SDP packets on the PHS voice link which is a Bluetooth virtual link in accordance with the SDP standard of Bluetooth communication.
Since the SDP profile is essential for the pairing process, the method for transmitting / receiving data of only the SDP profile as in the third embodiment is the fastest and simplest.

In the fourth embodiment, an interface is provided in the application layer (FIG. 2; application layer 44A, 44B) in the Bluetooth stack provided in the short-range wireless communication units 1300 and 2300.
The communication contents and method in this case are configured such that the information recorded by the pairing partner device as the pairing information in the DB format is copied and set.

As described above, in the embodiment according to the present invention, Bluetooth communication is not used for the pairing process (voice communication is used). Therefore, as shown in the first to fourth embodiments, the pairing process is indispensable. In addition to the SDP packet (SDP profile), the headers of the other three layers (HCI layer, L2CAP layer, and Application layer) are not necessarily required. That is, one of these layers / layers is selected, and an interface for the Bluetooth virtual link is created in the selected layer / layer. Then, pairing information is exchanged through the created interface.
When Bluetooth communication (actual link) is used for pairing processing as in the past, because it is inevitably configured to straddle all layers / layers according to the Bluetooth communication standard, three headers other than the SDP layer are used. Therefore, it was necessary to create complicated software considering information exchange between layers.
In view of these points, in this embodiment, it is possible to simplify the creation of an interface and reduce the load on the CPU related to this work. Therefore, the battery life of the remote operation device 101 and the operated device 201 can be reduced. Can be stretched.
In addition, as an example of the communication device of the present invention, the remote operation device and the operated device have been described as an example. However, the device is not limited to the remote operation device and the operated device as long as the devices mutually perform Bluetooth communication. .

With this configuration, the communication device according to the embodiment of the present invention can achieve the following effects.
(1) The device search procedure can be omitted.
(2) Since an operation for inputting and confirming an authentication code or the like is not required, security considerations associated with the operation of the pairing process are not required, and the pairing process can be performed more quickly and simply.
(3) A path for pairing processing is created using voice communication other than Bluetooth communication. However, since data communication is performed using the Bluetooth communication layer / layer already defined, a simpler software It can be easily installed in equipment by development or minor modification / modification of existing communication software.

30A, 30B (Bluetooth / DTMF) data converter 40A, 40B HCI
41A, 41B L2CAP
43A, 43B SDP
44A, 44B Application Layer (pairing information storage unit)
100 Remote operation device 101 Remote operation device (PHS)
DESCRIPTION OF SYMBOLS 110 Wireless communication control part 120 Virtual link control part 121 Data conversion part 130 Bluetooth (BT) communication part 131 BT wireless communication part 132 Pairing information storage part 133 Reception pairing information storage part 134 Pairing information storage control part 135 Link key generation / Storage unit 111 Voice call communication unit 131 Pairing data transmission unit 221 Data conversion unit 200 Device to be operated 201 Device to be operated (PHS)
210 Wireless communication control unit 211 Voice communication unit 220 Virtual link control unit 221 Data conversion unit 230 Bluetooth (BT) communication unit 231 BT wireless communication unit 232 Pairing information storage unit 233 Reception pairing information storage unit 234 Pairing information storage control Unit 235 Link key generation / storage unit 300 Communication station 1110 PHS voice call unit 1111 Device specific information input unit 1300 Short-range wireless communication unit (Bluetooth communication standard)
1400 Controller 2110 PHS voice call unit 2111 Device specific information input unit 2300 Short-range wireless communication unit (Bluetooth communication standard)
2400 Controller Xa, Xb PHS voice link path (voice path)

Claims (2)

Device specifying information input means; and communication means for starting mutual communication with a counterpart device specified using the device specifying information input to the device specifying information input means, and performing pairing processing by the communication means A pairing communication unit for performing
A storage unit for storing pairing information of self and a partner device necessary for pairing;
Based on the pairing information stored in the storage unit, a Bluetooth communication unit that performs Bluetooth communication with a paired counterpart device;
A communication device comprising:
The pairing communication unit further includes:
First conversion means for converting the pairing information stored in the storage unit into sound data in a predetermined format;
Transmitting means for transmitting the converted sound data in a predetermined format to a counterpart device for pairing;
Receiving means for receiving sound data of pairing information of the counterpart device, which is transmitted from the counterpart device that transmits the sound data and converted into the predetermined format by the counterpart device;
Second conversion means for converting the sound data received by the receiving means into original pairing information;
Recording means for recording the pairing information converted by the second conversion means in the storage unit as pairing information of the counterpart device;
A communication apparatus comprising:
  The communication apparatus according to claim 1, wherein the communication unit is one-to-one communication using a telephone line.

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