JP2003078529A - Transmitting/receiving system and method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a transmitting/receiving system and method capable of automatically deciding the connection destination without making it necessary for a user to implicitly designate the connection designation at the time of designating the connection destination. SOLUTION: In this transmitting/receiving system, a master 1 operates slave device retrieval 6 to slaves (1) 7-1, (2) 7-2, and (3) 7-3, and acquires BDADDR by a BDADDR acquiring part 2, and records time stamps corresponding to the addresses of the slaves (1) 7-1, (2) 7-2, and (3) 7-3 by a time stamp recording part 4 based on the connecting situations, and records the number of times of connection by a number of times of connection recording part 5, and automatically selects the connection destination by a connection destination automatically selecting part based on the time stamps or the number of times of connection, and performs the connection by designating the address BDADDR.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transmission / reception system and a transmission / reception method for receiving transmitted information and outputting a received signal.

[0002]

2. Description of the Related Art Conventionally, for example, when a connected device is fixed and determined in advance, or when a connected device is selected, the addresses of a plurality of devices are stored in a memory table 111 as shown in FIG. , The display unit 11 displays the addresses of a plurality of devices stored in the memory table 111.
2 in a table format, and the user selects the connection destination by moving the cursor displayed on the display unit 112 using the up key 115 or the down key 116 of the operation unit 114, and presses the decision key 117. To determine the connection destination,
A connection operation is performed to this connection destination, or a device that is first found by searching for a device is selected and connected to this device.

[0003]

Therefore, in the above-mentioned conventional technique, a plurality of devices to be connected are registered, or the user needs to explicitly specify the device found by the search. There was the inconvenience that it became complicated.

Therefore, the present invention has been made in view of the above points, and a transmission / reception system and a transmission / reception method capable of automatically determining a connection destination in designating the connection destination without the user's explicit designation. The challenge is to provide.

[0005]

A transmission / reception system of the present invention performs transmission signal processing on an input signal from a transmission device in a network for transmission, and also performs reception signal processing on a signal received by a reception device in the network. In a transmission / reception system for applying and outputting, a searching unit that searches for the presence of a receiving device in the network, an acquiring unit that acquires the address of the receiving device uniquely assigned in the network, and an address are designated. The connection means for connecting to the receiving device, the storage means for storing the priority information corresponding to the address of the receiving device based on the connection status by the connecting means, and the connection destination by the connecting means based on the priority information. It is detected that the transmitter has a connection destination selecting unit that automatically selects the receiver and that the transmitter is searching. And a receiving device having a notifying means for notifying the transmitting device of its own address uniquely assigned in the network when the detecting device detects a search from the transmitting device. is there.

Further, according to the transmitting / receiving method of the present invention, an input signal from a transmitter in the network is subjected to transmission signal processing for transmission, and a signal received by a receiver in the network is subjected to reception signal processing and output. In the transmission / reception method, a process in the transmission device, a search step for searching for the existence of the reception device in the network, an acquisition step for acquiring the address of the reception device uniquely assigned in the network, A storage step of storing priority information corresponding to the address of the receiving device based on the connection status; and a connection destination selecting step of automatically selecting a receiving device of the connection destination by the connection step based on the priority information, A connection step of connecting to the receiving device by specifying an address, and a process in the receiving device, Detection step for detecting that a search is being performed from the storage device, and a notification step for notifying the transmission device of its own address uniquely assigned in the network when the detection step detects the search from the transmission device. And with.

Therefore, according to the present invention, the following operations are performed. In the transmitting / receiving system, the transmitting device operates as follows. The search means searches for the presence of the receiving device in the network. The acquisition means acquires the address of the receiving device uniquely assigned within the network.
The connecting means connects to the receiving device by designating an address. The storage means stores the priority order information corresponding to the address of the receiving device based on the connection status of the connection means. The connection destination selection means, based on the priority information,
The receiving device to be connected by the connecting means is automatically selected.

In the transmitting / receiving system, the receiving device operates as follows. The detection means detects that the search is being performed from the transmission device. The notifying unit notifies the transmitting device of its own address uniquely assigned in the network when the detecting unit detects the search from the transmitting device.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below. The transmission / reception system applied to this embodiment is
A device-specific address B, such as an electronic device equipped with a Bluetooth wireless communication unit.
DADDR (Bluetooth Device Ad)
When a slave device to which a master device is to be connected is automatically determined in a device to which the address) is given, a priority order is determined from records that have been connected in the past, and the slave device to be connected based on this priority order. The device is automatically selected.

[0010] This Bluetooth
In the wireless communication according to, the basic idea is to use each communication device as a master and a slave, and the device that connects the master to the slave and initiates this connection is called the master.

There is a two-step operation as a method of selecting a connection destination. The first stage is a method in which the master searches for surrounding slaves, and the second stage is a method of connecting to the found slaves. The first stage is a search (inquiry).
y) and the second stage is called connection.

By this operation, the master can acquire the BDDDDR of the connectable slave. Then, the obtained BDADDR is used to connect to the slave.

When the master stores the slave BDADDR in advance and connects to the slave by so-called hitting, the slave BDADDR is specified and the connection is made.
The operation of y) becomes unnecessary.

Here, since the BDDR is unique to each electronic device provided with a Bluetooth wireless communication unit, all the electronic devices provided with a Bluetooth wireless communication unit are respectively provided. Have a different BADDDR.

In the present embodiment described below, in an electronic device equipped with a Bluetooth wireless communication unit, when a connection is specified by using BDDR, the connection destination is automatically determined. It shows how to do it.

FIG. 1 is a diagram showing slave inquiry of a master of a transmission / reception system applied to this embodiment. FIG. 2 is a diagram showing a connection (page) specifying a master slave. The slave search (inquiry) of the master is a so-called inquiry (inq).
The master sends an IQ packet to check what kind of slave exists around it, and the slave sends an FHS packet for notifying its own attribute to the master, such as BDADDR. This is an operation for transmitting information.

An inquiry scan of the slave (inquiry scan) is a processing operation performed by the slave to receive the IQ packet transmitted by the master, and is an operation for notifying the master of the attribute of the slave. .

The connection (page) means so-called call transmission (page), and the processing operation in which the master transmits the ID packet to a specific slave and the ID transmitted by the slave for confirmation of reception thereof. This is a processing operation in which a master scans a packet.

In the transmission / reception system of FIG. 1, the master 1
Is configured to perform a slave device search 6 for the slave (1) 7-1, the slave (2) 7-2, and the slave (3) 7-3, and acquire the BADDDR by the BDADDR acquisition unit 2. To be done.

In the transmission / reception system of FIG. 2, the master 1
Automatically selects a connection destination by the connection destination automatic selection unit 21 based on the time stamp or the number of connections, and
It is configured to make a connection 23 that specifies DADDR.

In the transmission / reception system of FIG. 1, the master 1
Is uniquely assigned in the network and a search means for searching for the existence of the slave (1) 7-1, the slave (2) 7-2, and the slave (3) 7-3 in the network. Slave (1) 7-1, Slave (2) 7-
2, slave (3) 7-3 address BDDRDDR1,
BDADD that acquires BDADDR2 and BDADDR3
R acquisition unit 2 and addresses BDADDR1 and BDDRDDR
2, slave (1) 7-1, slave (2) 7-2, slave (3) by specifying BDADDR3
7-3 based on the connection means connected to 7-3 and the connection status by the connection means.
-2, a BDDDDR registration unit 3 having a time stamp recording unit 4 for recording a time stamp corresponding to the address of the slave (3) 7-3 and a connection count record 5 for recording the connection count. .

In the transmission / reception system of FIG. 2, the slave (1) 7-1 and the slave (2) 7- of the connection destination by the connection means are based on the time stamp or the number of connections.
2, a connection destination automatic selection unit 21 that automatically selects the slave (3) 7-3.

In this transmission / reception system, the slave (1) 7-1, the slave (2) 7-2, and the slave (3) 7-3 detect the search from the master 1. And when the detection means detects a search from the master 1, its own addresses BDDDDR1 and BDDRDDR uniquely assigned in the network
2. Notifying means for notifying the master 1 of BDADDR3.

Further, the connection destination automatic selection unit 21 has the slave (1) 7-1 and the slave (2) 7 of the address in the past.
-2, the time stamp information connected to the slave (3) 7-3 is used as priority information to select a connection destination.

Also, the connection destination automatic selection unit 21 has the slave (1) 7-1 and the slave (2) 7 of the address in the past.
-2, it is configured to select a connection destination by using the connection count information connected to the slave (3) 7-3 as priority order information.

Further, the connection destination automatic selection unit 21 has the slave (1) 7-1 and the slave (2) 7 of the address in the past.
-2, time stamp information connected to slave (3) 7-3, or slave (1) 7- of that address in the past
1, the connection count information connected to the slave (2) 7-2 and the slave (3) 7-3 is configured to switch the time stamp information or the connection count information to enable the selection operation of the connection destination.

Further, the connection destination automatic selection unit 21 determines, based on the time stamp information, the slave (1) 7-1, the slave (2) 7-2, and the slave (3) whose addresses correspond to the latest time stamp information. Slave (1) 7 of address corresponding to oldest time stamp information from 7-3
-1, the slave (2) 7-2, the slave (3) 7-3 is selected, and the connection means tries the connection to the selected connection destination until the connection means is established. Configured to repeat connection attempts to the connection destination.

Also, the connection destination automatic selection unit 21 determines, based on the connection count information, the slave (1) 7-1, the slave (2) 7-2, which has the address corresponding to the largest connection count information.
From the slave (3) 7-3, select the connection selection destinations of the slave (1) 7-1, the slave (2) 7-2, and the slave (3) 7-3 having addresses corresponding to the smaller connection count information in order, The connection means is configured to make a connection attempt to the selected connection destination, and the connection attempt is repeated until the connection means makes a connection.

Also, the connection destination automatic selection unit 21 determines, based on the time stamp information, the slave (1) 7-1, slave (2) 7-2, slave (3) having the address corresponding to the latest time stamp information. Slave (1) 7 of address corresponding to oldest time stamp information from 7-3
-1, the slave (2) 7-2, the slave (3) 7-3 is selected, and the connection means tries the connection to the selected connection destination until the connection means is established. Based on the operation of repeating the connection attempt to the selected destination of the connection or the connection count information, the slave (1) 7-1, slave (2) 7-2, slave (3) of the address corresponding to the largest number of connection count information ) Slave (1) 7- of the address corresponding to the connection count information in ascending order from 7-3
1, select the connection destination of the slave (2) 7-2, slave (3) 7-3, try the connection by the connecting means to the selected destination of this connection, and connect until connection by the connecting means is possible It is configured to be able to switch between the operation of repeating the trial and the operation of.

Further, the time stamp or the number of connections in the connection destination automatic selection unit 21 is configured to be updated by the updating unit 22 based on the connection operation.

The connection destination automatic selection unit 21 is configured so that the user can arbitrarily set the priority order regardless of the time stamp or the number of connections.

Further, the connection destination automatic selection unit 21 is configured to be capable of switching between selection of a connection destination based on a time stamp or the number of connections and selection of an arbitrary connection destination by the user.

The operation of the transmission / reception system thus configured will be described below. In the master 1 of the transmission / reception system of FIG. 1, the search means is a slave (1) 7-1, a slave (2) 7-2, a slave (3) in the network.
Search for the existence of 7-3. The BDDDDR acquisition unit 2 is a slave (1) 7-1, a slave (2) 7-2, and a slave (3) uniquely assigned in the network.
7-3 addresses BDDDDR1, BDDDDR2, B
Obtain DADDR3. The BDADDR registration unit 3 registers the address BDADDR, and the time stamp recording unit 4
Records the time stamps corresponding to the addresses of slave (1) 7-1, slave (2) 7-2, and slave (3) 7-3 based on the connection status. Record.

In the master 1 of the transmission / reception system of FIG. 2, the connection destination automatic selection unit 21 determines the connection destination slave (1) 7-1 and the slave (2) 7- based on the time stamp or the number of connections. 2, slave (3)
7-3 is automatically selected. The connection means is the address BD
Slave (1) 7-1 and slave (2) 7 by designating ADDR1, BDADDR2, and BDDRDDR3
-2, connect to slave (3) 7-3.

The slave (1) 7-1, slave (2) 7-2, slave (3) of this transmission / reception system
In 7-3, the detection means detects that the master 1 is searching. When the detecting unit detects the search from the master 1, the notifying unit uniquely assigns its own address BDADDR1, BD in the network.
The master 1 is notified of ADDR2 and BDDRD3.

As a result, the slave (1) 7-1, the slave (2) 7-2, and the slave (3) to which the master 1 is connected are connected.
When automatically determining 7-3, the priority order is determined from the record of the past connection time stamp or the number of connections, and the slave (1) 7-1 at the connection destination is based on this priority order. , Slave (2) 7-2, slave (3)
7-3 can be automatically selected.

Further, the connection destination automatic selection unit 21 has the slave (1) 7-1 and the slave (2) 7 of the address in the past.
-2, since the time stamp information connected to the slave (3) 7-3 is configured to select the connection destination as the priority information, the connection destination of the latest time stamp is selected using the time stamp information as the priority information. can do.

Further, the connection destination automatic selection unit 21 has the slave (1) 7-1 and the slave (2) 7 of the address in the past.
-2, since it is configured to select the connection destination by using the connection count information connected to the slave (3) 7-3 as the priority information, the connection count information is selected as the priority information and the connection destination having the largest number of connections is selected. be able to.

Further, the connection destination automatic selection unit 21 has the slave (1) 7-1 and the slave (2) 7 of the address in the past.
-2, time stamp information connected to slave (3) 7-3, or slave (1) 7- of that address in the past
1, the connection count information connected to the slave (2) 7-2 and the slave (3) 7-3 is configured to switch the time stamp information or the connection count information to enable the operation of selecting the connection destination. It is possible to select the connection destination by switching the time stamp information or the connection count information.

Also, the connection destination automatic selection unit 21 determines, based on the time stamp information, the slave (1) 7-1, slave (2) 7-2, slave (3) having the address corresponding to the latest time stamp information. Slave (1) 7 of address corresponding to oldest time stamp information from 7-3
-1, the slave (2) 7-2, the slave (3) 7-3 is selected, and the connection means tries the connection to the selected connection destination until the connection means is established. Since it is configured to repeat connection attempts to connection destinations, it is possible to select connection connections from the latest connection destination to the oldest connection destination in order and repeat connection attempts.

Further, the connection destination automatic selection unit 21 determines, based on the connection count information, the slave (1) 7-1, the slave (2) 7-2, which has the address corresponding to the largest number of connection count information.
From the slave (3) 7-3, select the connection selection destinations of the slave (1) 7-1, the slave (2) 7-2, and the slave (3) 7-3 having addresses corresponding to the smaller connection count information in order, The connection means tries to connect to the selected destination of this connection, and the connection attempt is repeated until the connection means can make a connection. Therefore, the connection destination with the largest number of connections is connected to the connection destination with the smallest number of connections in order. You can select and repeat the connection attempt.

Also, the connection destination automatic selection unit 21 determines, based on the time stamp information, the slave (1) 7-1, the slave (2) 7-2, and the slave (3) of the address corresponding to the latest time stamp information. Slave (1) 7 of address corresponding to oldest time stamp information from 7-3
-1, the slave (2) 7-2, the slave (3) 7-3 is selected, and the connection means tries the connection to the selected connection destination until the connection means is established. Based on the operation of repeating the connection attempt to the selected destination of the connection or the connection count information, the slave (1) 7-1, slave (2) 7-2, slave (3) of the address corresponding to the largest number of connection count information ) Slave (1) 7- of the address corresponding to the connection count information in ascending order from 7-3
1, select the connection destination of the slave (2) 7-2, slave (3) 7-3, try the connection by the connecting means to the selected destination of this connection, and connect until connection by the connecting means is possible Since it is configured to be able to switch between the behavior of repeating the trial and the behavior of repeating the trial, the latest connection destination is selected in order from the oldest connection destination and the connection attempt is repeated, or the connection destination with the largest number of connections is You can select the connection destinations in sequence and switch between repeated connection attempts.

Further, since the time stamp or the number of times of connection in the connection destination automatic selection unit 21 is configured to be updated by the updating unit 22 based on the connecting operation, the updating unit 22 can set the time stamp or the time stamp based on the connecting operation. The number of connections can be updated.

Further, since the connection destination automatic selection unit 21 is configured such that the user can arbitrarily set the priority order regardless of the time stamp or the number of connections, the user can select the connection destination based on the connection destination specified by the user. You can set the priority.

Further, the connection destination automatic selection unit 21 is configured so as to be able to switch between the selection of the connection destination based on the time stamp or the number of connections and the selection of the arbitrary connection destination by the user, so that it is predetermined. It is possible to switch between the connection destinations with different priorities and the connection destinations specified by the user.

As described above, in the normal connection of the electronic device including the wireless communication unit by Bluetooth according to the present embodiment described above, the master is the BD.
Make a connection that specifies ADDR, and make a connection to the slave. Here, the master 1 previously sets the BDADDR of the slave necessary for performing the fixed shot.
It is acquired by the R acquisition unit 2 and registered in the BDADDR registration unit 3. At this time, the time stamp recording unit 4 records a time stamp according to the connection status, and the connection number recording unit 5 records the number of connections according to the connection status. As a result, the master 1 can automatically select the connection destination according to the time stamp or the number of times of connection by the connection destination automatic selection unit 22 without any user's selection operation to perform connection.

FIG. 3 is a diagram showing a system configuration. As shown in FIG. 2, the master 1 is a Bluetooth device.
It is connected to the slave 7-1 via a wireless communication line of (tooth). In FIG. 3, the master 1 generally uses a Bluetooth transceiver as a Bluetooth transceiver.
an antenna for receiving and transmitting a wireless transmission signal according to the Oth standard, and an RF (Radi) for high-frequency signal processing of the wireless transmission signal according to the Bluetooth standard for receiving and transmitting
o Frequency) unit 31, a baseband controller unit 32 that performs baseband signal processing that establishes and controls links, and a CPU (Cent) that controls data transfer such as data division and assembly and flow control.
and a SRAM (Static Rand) for storing control data.
om Access Memory) and a memory 34 including a flash memory for storing various parameters according to specifications.

In addition to this, the master 1 also includes a path control unit for interfacing with the host controller,
It is configured to have a display section for performing various displays, a button for input operation, a speaker for outputting voice, and a microphone for inputting voice. Such a general Bluetooth
The oth transmission / reception unit is used for transmission / reception. The slave 7-1 also has a similar Bluetooth transmitting / receiving unit.

Here, in this embodiment, the master 1 is
The BADDDR registration unit 3 which records the history of connection such as the time stamp or the number of connections corresponding to the address BDDR of the slave using the address BDDR of the slave obtained as a result of the slave search (inquiry)
And a connection destination automatic selection unit 21 that automatically selects a connection destination based on a time stamp or the number of connections.

As a result, the master 1 is the connection destination slave 7-1 that is automatically selected based on the time stamp or the number of connections corresponding to the slave address BDADDR obtained as a result of the slave search (inquiry).
A connection (page) specifying BDDDDR can be performed.

FIG. 4 is a diagram showing the correspondence between the BDADDR on the memory and the time stamp. In FIG. 4, in the memory table 41, a time stamp 45 recorded corresponding to BDADDR (1) 42 and BDADDR (2) are recorded.
43 and the time stamp 46 recorded corresponding to 43
A time stamp 47 recorded corresponding to ADDR (3) 44 is recorded.

The time stamp 45, the time stamp 46, and the time stamp 47 are designated by the master 1 shown in FIG. 2 for the slave 7-1 by the time stamp recording unit 4 shown in FIGS. 1 and 2. When the connection 23 is made, it is recorded in the memory table 41 of the BDADDR registration unit 3.

When the master 1 shown in FIG. 2 makes a connection 23 specifying the next BDADDR to the slave 7-1, the updating unit 22 causes the time stamp recording unit of the BDADDR registering unit 3 as shown by 48. The time stamp 45, the time stamp 46, and the time stamp 47 recorded in No. 4 are updated.

Here, this time stamp is, for example,
For devices that do not have a function such as a timer, numbers may be assigned in order from the most recently connected device so that the connection order can be known.

As a result, at the next connection, as a BDADDR determination method for performing a fixed shot, the most recently connected device can be selected and connection can be performed using the BDDR of that device.

As a result, the connected device can be determined without any explicit designation from the user. In this way, when the first selected device cannot be connected, the next most recently connected device is sequentially selected, and the BDADDR of the connection destination can be automatically determined by using the BDADDR. .

FIG. 5 is a diagram showing the correspondence between BDADDR on the memory and the number of connections. 5, in the memory table 51, the number of connections 55 recorded corresponding to BDADDR (1) 52, the number of connections 56 recorded corresponding to BDADDR (2) 53, and BDDDDR (3) 54.
And the number of times of connection 57 recorded corresponding to.

The connection number 55, the connection number 56, and the connection number 57 are specified by the connection number recording unit 5 shown in FIGS. 1 and 2 by the master 1 shown in FIG. 2 to specify BDDR for the slave 7-1. When you make a connection 23
It is recorded in the memory table 51 of the BDADDR registration unit 3.

When the master 1 shown in FIG. 2 makes a connection 23 specifying the next BDADDR to the slave 7-1, the updating unit 22 causes the updating unit 22 to record the number of connections of the BDADDR registration unit 3, as indicated by 58. The number of times this connection was recorded in 5
5, the connection count 56 and the connection count 57 are updated.

As described above, instead of determining the connection destination using the order of the time stamps, the connection destination may be automatically determined using the number of connections that have been connected in the past.

Connection count recording unit 5 of BDADDR registration unit 3
The number of connections recorded in (1) may not be an accurate number of connections, but an identifier that can be arranged in the order of the number of connections may be used.

Then, at the next connection, a device having the largest number of connections is selected as a BDADDR determination method for performing a fixed shot, and connection is made using the BDDR of that device. By adopting such a method, the connection destination can be determined without the user explicitly designating the connection device.

In the same manner as described above, when the device selected first cannot be connected, the device having the next largest number of connections is sequentially selected and the BDADDR of the connection destination is automatically used by using the BDADDR. Can be determined.

FIG. 6 is a diagram showing a usage state. Figure 6
Is a headphone (2ch) 76 in which an audio player 62 serving as a master 61, a television (TV) tuner 71 or an MP3 player 73 serves as a slave 75.
Or address (BCHDDR) of speaker (5ch) 78
, And selects a connection destination based on the time stamp corresponding to the address BDADDR or the number of connections according to the source of the audio signal, and causes the connection destination to properly reproduce the audio signal according to the connection destination. An example is shown.

Audio player 6 as master 61
2 performs a so-called inquiry which becomes a slave search. Specifically, the inquiry is the search from the audio player 62 serving as the master 61 to the antenna 70.
The audio player 62, which is the master 61, transmits an IQ packet to check what kind of slaves are present around the audio player 62, and the headphones (2ch) 76 or the speaker (5ch) 78, which are the slaves 75, transmit their own IQ packets. The FHS packet for notifying the attribute is sent to the antenna 7
This is an operation for transmitting information such as BDADDR by transmitting it to the audio player 62 serving as the master 61 via the 7 or antennas 80, 82, 84, 86, 88.

Headphones (2ch) as slaves 75
The speaker 76 or the speaker (5ch) 78 performs an inquiry scan for this.
Specifically, this inquiry scan (inquiry)
The term “scan” means headphones (2ch) 76 which becomes a slave 75 in order to receive an IQ packet transmitted by the audio player 62 which becomes the master 61 via the antenna 77 or the antennas 80, 82, 84, 86 and 88.
Or the processing operation performed by the speaker (5ch) 78,
This is an operation for notifying the audio player 62 as the master 61 of the attributes of the headphones (2ch) 76 or the speaker (5ch) 78 as the slave 75.

Headphones (2ch) as slaves 75
When the speaker 76 or the speaker (5ch) 78 detects a search from the audio player 62 serving as the master 61 by an inquiry scan, the own address BDADDR uniquely given in the network is sent to the antenna 77 or the antenna 80. , 8
The FHS packet is transmitted via 2, 84, 86, and 88 to notify the audio player 62 as the master 61.

Audio player 6 as master 61
The acquisition unit 2 acquires the address BADDDR of the headphones (2ch) 76 or the speaker (5ch) 78, which is the slave 75 uniquely assigned in the network, via the antenna 70. The BADDDR registration unit 3 of the audio player 62 serving as the master 61 is a headphone (2ch) 76 serving as a slave 75 or a speaker (5c).
h) The time stamp or the number of connections corresponding to the address BADDDR of 78 is stored in the memory table 65.

At this time, the selector 68 of the audio player 62 serving as the master 61 determines the source of the audio signal as a DVD (Digital Versatile D).
isc) Player (5ch) 63 or CD (Com
Pact Disc) Switch to player (2ch) 64. The determination unit 69 determines that the audio signal source is DV.
Depending on whether it is the D player (5ch) 63 or the CD player (2ch) 64, each item of BDADDR in the memory table 65 is searched based on the priority order, or alternatively, other items are searched. It is determined whether to search for the TV tuner 71 or the MP3 player 73, which is the master 61 of the above, based on priority.

Audio player 6 as master 61
When the source of the audio signal is the CD player (2ch) 64, the connection destination automatic selection unit 21 of 2 selects the headphone (2ch) 76 as the connection destination based on the priority order stored in the memory table 65, When the source of the audio signal is the DVD player (5ch) 63, the speaker (5ch) 78 is selected as the connection destination based on the priority order stored in the memory table 65.

The discriminator 66 is connected to headphones (2c).
h) 76 or the speaker (5ch) 78 is discriminated, and the sound effect 67 is discriminated according to the discrimination.
Control to switch the sound effect processing to. The sound effect 67 is connected to headphones (2
ch) 76, sound effect processing for 2 ch is performed, and when the connection destination is the speaker (5 ch) 78, sound effect processing for 5 ch is performed.

In this way, the connection destination automatic selection unit 21 of the audio player 62 serving as the master 61 automatically selects the connection destination based on the time stamp or the number of times of connection corresponding to the address BDADDR stored in the memory table 65. Then, the connection means makes a connection (page) in which the address BADDDR is designated to the headphone (2ch) 76 or the speaker (5ch) 78 which is the slave 75 of the selected connection destination.

As a result, the connection destination is the headphone (2c
h) 76, the sound subjected to the sound effect processing for 2ch is reproduced from the headphones (2ch) 76, and 5 when the connection destination is the speaker (5ch) 78.
The sound that has been subjected to the sound effect processing for ch is the center speaker 79 of the speaker (5ch) 78, the left speaker 8
2, the right speaker 83, the rear left speaker 85, and the rear right speaker 87.

The TV tuner 71 or the MP3 player 73, which is the other master 61, is connected to the headphone (2ch) 76 or the speaker (5ch) 78, which is the slave 75 of the connection destination, by specifying the address BADDDR. Similarly, the sound is reproduced from the headphones (2ch) 76 or the speaker (5ch) 78.

FIG. 7 is a flow chart showing the operation of automatically selecting the connection destination. The operation of FIG. 7 corresponds to the operation of the connection destination automatic selection unit 21 of the master 1 shown in FIG. In FIG. 7, in step S1, the process of determining the connection destination is started. In step S2, it is determined whether or not there is a device connected in the past. Specifically, the connection destination automatic selection unit 21
It is determined whether or not the device connected in the past is registered in the BDADDR registration unit 3.

If there is a device connected in the past in step S2, the connection destination is retrieved from the memory in step S3. Specifically, the connection destination automatic selection unit 21 uses the BDADD
The connection destination registered in the R registration unit 3 is searched.

In step S4, it is determined whether the connection destination is the newest. Specifically, the connection destination automatic selection unit 21 selects B
It is determined whether the time stamp recorded by the time stamp recording unit 4 of the DADDR registration unit 3 is the latest connection destination.

If it is the newest connection destination in step S4, the BDADDR of the connection destination is acquired in step S5. Specifically, the connection destination automatic selection unit 21 uses the BDADD
The BDA of the connection destination whose time stamp recorded by the time stamp recording unit 4 of the R registration unit 3 is the latest one.
Get DDR.

Then, in step S6, BDADDR is designated and connection is made. Specifically, the connection destination automatic selection unit 2
1 designates the selected BDADDR of the connection destination and causes the connection means to perform the connection.

If there is no device connected in the past in step S2, the process ends in step S7. When it is not the newest connection destination in step S4, the process returns to step S3,
The processes and determinations of steps S3 to S4 are repeated.

FIG. 8 is a flow chart showing the operation of updating the time stamp. FIG. 8 corresponds to the operation of the updating unit 22 shown in FIG. In FIG. 8, step S11
Then, record the time stamp at the time of connection. Specifically, the connection destination automatic selection unit 21 causes the time stamp recording unit 4 of the BDADDR registration unit 3 to record the time stamp at the time of connection by the connecting means.

In step S12, the storage address is searched using BDADDR. Specifically, the update unit 22
BDD using BDADDR of the connection destination by the connection means
The DR registration unit 3 is searched.

In step S13, the same BDAD is stored in the storage destination.
It is determined whether there is no DR. Specifically, the updating unit 22
Searches for the same BDADDR registered in the BDADDR registration unit 3.

In step S13, the same BDADD is stored in the storage destination.
If there is the same BDDR in the storage destination after searching until there is R, a time stamp is recorded in step S14, and the update is completed in step S15. In particular,
The update unit 22 updates the time stamp by the time stamp recording unit 4 of the BDADDR registration unit 3.

FIG. 9 is a flowchart showing the operation for automatically changing the connection destination. FIG. 9 corresponds to the operation of the connection 23 in which BDADDR is designated by the connection means shown in FIG. In FIG. 9, in step S21, the connection operation process is started. Specifically, the connection means performs an operation for designating the BDADDR of the connection destination. Step S
At 22, the connection destination is determined. Specifically, the connection destination automatic selection unit 21 performs the operation of the connection destination automatic selection shown in FIG. 7.

In step S23, it is determined whether or not the connection has been established. Specifically, the connection means determines whether the connection destination selected by the connection destination automatic selection unit 21 has been connected.

If the connection cannot be made in step S23,
Returning to step S22, the next connection destination is determined. Specifically, the connection destination automatic selection unit 21 selects the connection destination of the next priority recorded in the BADDDR registration unit 3. When the connection is established in step S23, step S
At 24, the processing of the connection operation is completed.

FIG. 10 is a flowchart showing the operation of detecting the state of the device and determining the connection destination according to the past connection history. FIG. 10 corresponds to the operation of the master 61 in the use state shown in FIG. In addition, 5.1 in FIG.
The ch (including the subwoofer) corresponds to 5ch in FIG. In step S31, the connection destination is determined. Specifically, the connection destination automatic selection unit 21 performs the operation of the connection destination automatic selection shown in FIG. 7.

In step S32, the selector judgment is CD.
Determine whether or not. Specifically, the master 6 shown in FIG.
The selector 68 of the audio player 62 which becomes 1 is
DVD player (5ch) as audio signal source
63 or CD player (2ch) 64.

If it is determined in step S32 that the selector is not a CD (it is a DVD), in step S33, 5.
Specify the memory table for 1ch audio.
Specifically, the determination unit 69 specifies the memory table 65 in which the source of the audio signal corresponds to the DVD player (5ch) 63.

In step S34, 5.
It is determined whether or not there is a 1ch BDADDR item.
Specifically, the determination unit 69 determines whether or not there is an item of 5.1 ch BDDR in the memory table 65.

In step S34, 5.1 is stored in the memory table.
If there is an item of ch BDADDR, step S4
Go to 1. In step S34, the memory table has 5.1c.
When there is no BDDRD item of h, step S39
Then, set the effector to convert to 2ch. Specifically, when the connection destination is the headphones (2ch) 76, the sound effect 67 performs sound effect processing for 2ch.

In step S40, a memory table for 2ch audio is designated. Specifically, the decision unit 6
9, the audio signal source is a CD player (2c
h) Specify the memory table 65 corresponding to 64,
Control goes to step S41.

If the selector determines that the result is CD in step S32, a memory table for 2ch audio is designated in step S35. Specifically, the decision unit 6
9, the audio signal source is a CD player (2c
h) Designate the memory table 65 corresponding to 64.

At step S36, 2c is stored in the memory table.
It is determined whether or not there is an item of hBADDDR. Specifically, the determining unit 69 stores 2 channels in the memory table 65.
It is determined whether or not there is a BADDDR item.

In step S36, 2ch is added to the memory table.
If there is an item of BDADDR of, the process proceeds to step S41. BD of 2ch is added to the memory table in step S36.
If there is no ADDR item, in step S37, 5.
Set the effector to convert to 1ch.
Specifically, when the connection destination is the speaker (5ch) 78, the sound effect 67 performs sound effect processing for 5ch.

In step S38, a memory table for 5.1ch audio is designated. Specifically, the determination unit 69 specifies the memory table 65 in which the source of the audio signal corresponds to the DVD player (5ch) 63, and proceeds to step S41.

In step S41, the most recently connected item is searched. Specifically, when the audio signal source is the CD player (2ch) 64, the connection destination automatic selection unit 21 of the audio player 62 serving as the master 61 has the most recently connected priority stored in the memory table 65. Headphones (2ch) 76 is selected as the connection destination based on the ranking, and the audio signal source is DVD.
When it is the player (5ch) 63, the speaker (5ch) 78 is selected as the connection destination based on the most recently connected priority stored in the memory table 65.

In step S42, it is determined whether or not there is the next item in the memory table. Specifically, the master 61
Connection destination automatic selection unit 2 of the audio player 62
1 determines whether the memory table 65 has the following items.

If there is the next item in the memory table in step S42, the process returns to step S41 and step S4 is executed.
The processing and determination of 1 to step S42 are repeated, and if there is no next item in the memory table in step S42,
In step S43, the process of confirming the connection destination BADDDR is performed. Specifically, the connection destination automatic selection unit 21 of the audio player 62 serving as the master 61 is connected to the BDADDR of the connection destination selected based on the most recently connected priority.
The confirmation process is performed.

In step S44, the connection is started. Specifically, the audio player 62 serving as the master 61
The connection destination automatic selection unit 21 automatically selects the connection destination based on the time stamp corresponding to the address BADDDR stored in the memory table 65 or the number of connections, and the connection means becomes the slave 75 of the selected connection destination. The headphone (2ch) 76 or the speaker (5ch) 78 is connected (page) with the address BDADDR specified.

In the above description, BDADDR is previously set.
Although the connection destination was set from the device storing "," if a plurality of devices were found in the search (inquiry) if combined with the operation of the search (inquiry),
The connection destination can be automatically determined from the plurality of devices.

That is, the BDADDR on the memory stored in order of time or the number of times of connection and the acquired BDD
Multiple devices are searched (inquiry) by checking the DRs in order and connecting them in that order.
Even if it is found in, the connection destination can be automatically determined.

By using this embodiment described above, the BDAD of the connection destination can be obtained without the user explicitly designating the connection destination.
The DR can be determined. At this time, in the automatic determination of the connection destination, the connection destination can be more accurately selected by determining the connection destination in the order of time of past connection or in the order of the number of connections of past connection.

When the user decides the connection destination, some kind of user interface is required. However, if the above-described embodiment is used, the user interface is not required, so that the configuration can be simplified. it can.

Blu as a short-distance wireless data communication system
In the Ethernet standard, for example, a CVSD (Continuous V) is used by using a frequency band of 2.4 GHz band.
The data transfer rate from 64 kbps to 1 Mbps can be used according to the ariavable Slope Delta) audio encoding method. Where 4
By performing signal processing at sampling frequencies of 4.1 KHz and 48 KHz, for example, CD (Compact)
Disc) or Blu that guarantees sound quality comparable to DAB
etoth A. Adopt the V-profile standard.

In the present embodiment described above, an example in which short-distance wireless transmission according to the Bluetooth standard is performed for transmission between communication devices is shown, but the present invention is not limited to this, and wireless IEEE 1394 standard, IEEE 802.11b standard, etc. It may be applied when wireless transmission is performed.

[0108]

The transmission / reception system of the present invention performs transmission signal processing on an input signal from a transmission device in the network for transmission, and also performs reception signal processing on a signal received by a reception device in the network and outputs the signal. In the transmission / reception system, a searching unit that searches for the existence of a receiving device in the network, an acquiring unit that acquires the address of the receiving device uniquely assigned in the network, and a receiving device by designating the address. Connection means for connecting to the receiver, storage means for storing priority information corresponding to the address of the receiving device based on the connection status by the connecting means, and automatic reception device of the connection destination by the connecting means based on the priority information. And a detecting device for detecting that a search is being performed from the transmitting device. And a receiving device having a notifying device for notifying the transmitting device of its own address uniquely assigned in the network when the detecting device detects a search from the transmitting device. When automatically determining the receiving device to be connected, it is possible to determine the priority from the record of the priority information connected in the past and automatically select the receiving device of the connection destination based on this priority. It is possible to provide a transmission / reception system that can perform such an effect.

Further, in the transmission / reception system of the present invention, in the above description, since the priority order information is the time stamp information that was connected to the receiving device of the address in the past, the latest time stamp connection is made with the time stamp information as the priority order information. This has the effect of being able to select the destination.

Further, in the transmission / reception system of the present invention, in the above description, since the priority order information is the connection number information which has been connected to the receiving device of the address in the past, the connection number information is used as the priority order information and the connection destination having the maximum connection number is connected. There is an effect that can be selected.

Further, in the transmission / reception system of the present invention, in the above description, the priority information is time stamp information connected to the receiving device of the address in the past, or information on the number of times of connection to the receiving device of the address in the past, Since the connection operation can be performed by switching the stamp information or the connection count information, there is an effect that the connection destination selecting operation can be performed by switching the time stamp information or the connection count information.

Further, in the transmission / reception system of the present invention, in the above description, based on the time stamp information, the receiving device having the address corresponding to the oldest time stamp information is sequentially connected to the receiving device having the address corresponding to the latest time stamp information. Since the trial is performed and the trial of the connection is repeated until the connection is established, there is an effect that the trial of the connection can be repeated by selecting from the latest destination of connection to the oldest destination of connection in order.

Further, in the transmission / reception system of the present invention, in the above description, based on the connection number information, the receiving device having the address corresponding to the largest connection number information is connected to the receiving device having the address corresponding to the smallest connection number information. Since the trial is performed and the trial of the connection is repeated until the connection is established, there is an effect that the trial of the connection can be repeated by sequentially selecting from the connection destination of the largest number of connections to the destination of the smallest number of connections.

Further, in the transmission / reception system of the present invention, in the above description, the priority order information is the time stamp information connected to the receiving device of the address in the past, or the connection frequency information connecting to the receiving device of the address in the past, Based on the stamp information, the receiving device with the address corresponding to the newest time stamp information is tried in order from the receiving device with the address corresponding to the oldest time stamp information, and connection attempts are repeated until a connection is established, or the connection is established. Based on the number-of-times information, the receiving device with the address corresponding to the largest number of times of connection is tried in order from the receiving device with the address corresponding to the smallest number of times of connection information, and the operation is repeated until connection is established. Since it is possible, select from the latest connection destination to the old connection destination in order,
The present invention has an effect that it is possible to switch whether to repeat connection trials or to sequentially select from the connection destination having the largest number of connections to the connection destination having the smallest number of connections and repeat the connection trials.

Further, in the transmission / reception system of the present invention, in the above description, since the priority order information is updated based on the connection operation, it is possible to update the time stamp or the number of connections based on the connection operation. .

In the transmission / reception system of the present invention, the user can arbitrarily set the priority order regardless of the priority order information. Therefore, the user sets the priority order based on the connection destination specified by the user. There is an effect that can be.

Further, in the transmission / reception system of the present invention, the selection of the connection destination based on the priority order information and the selection of the arbitrary connection destination by the user can be switched in the above description. Therefore, the connection of the predetermined priority order is performed. This has the effect that the destination can be switched to the connection destination specified by the user.

Further, according to the transmission / reception method of the present invention, an input signal from a transmitter in the network is subjected to transmission signal processing for transmission, and a signal received by a receiver in the network is subjected to reception signal processing and output. In the transmission / reception method, a process in the transmission device, a search step for searching for the existence of the reception device in the network, an acquisition step for acquiring the address of the reception device uniquely assigned in the network, A storage step of storing priority information corresponding to the address of the receiving device based on the connection status; and a connection destination selecting step of automatically selecting a receiving device of the connection destination by the connection step based on the priority information, The connection step of connecting to the receiving device by specifying the address, and the process in the receiving device, A detection step for detecting that a search is being performed by the device, and a notification for notifying the transmission device of its own address uniquely assigned in the network when the detection step detects the search from the transmission device. Since the step is provided, when the transmitting device automatically determines the receiving device to be connected, the priority order is determined from the record of the priority order information connected in the past, and the connection destination is determined based on this priority order. It is possible to automatically select the receiving device.

Further, in the transmission / reception method of the present invention, since the comparison step for comparing the address stored in the storage step with the address acquired in the acquisition step is provided in the above description, the priority order information is stored. By checking the received address and the acquired address in order and connecting in that order, it is possible to automatically determine the connection destination even if multiple receiving devices are found in the search. Play.

[Brief description of drawings]

FIG. 1 is a diagram showing a slave search of a master of a transmission / reception system applied to this embodiment.

FIG. 2 is a diagram showing a connection in which a master slave is designated.

FIG. 3 is a diagram showing a system configuration.

FIG. 4 is a diagram showing correspondence between BDADDR on memory and time stamps.

FIG. 5 is a diagram showing correspondence between BDADDR on a memory and the number of connections.

FIG. 6 is a diagram showing a usage state.

FIG. 7 is a flowchart showing an operation of automatically selecting a connection destination.

FIG. 8 is a flowchart showing an operation of updating a time stamp.

FIG. 9 is a flowchart showing an operation of automatically changing a connection destination.

FIG. 10 is a flowchart showing an operation of detecting a device state and determining a connection destination according to a past connection history.

FIG. 11 is a diagram showing designation of a conventional connection destination.

[Explanation of symbols]

1 ... Master, 2 ... BDADDR acquisition unit, 3 ... BD
ADDR registration section, 4 …… Time stamp recording section, 5 ……
Connection count recording part, 6 ... Search for slave device, 7-
1 ... Slave (1), 7-2 ... Slave (2), 7
-3 …… Slave (3), 21 …… Connection destination automatic selection section,
22 ... Update unit, 31 ... RF unit, 32 ... Baseband controller unit, 33 ... CPU, 34 ... Memory,
41 ... Memory table, 42 ... BADDDR1, 4
3 …… BDADDR2, 44 …… BDADDR3, 45
...... Time stamp, 46 ...... Time stamp, 47 ...
… Time stamp, 48 …… Update time stamp, 5
1 ... Memory table, 52 ... BADDDR1, 53
…… BDADDR2, 54 …… BDADDR3, 55…
… Number of connections, 56 …… Number of connections, 57 …… Number of connections, 5
8: Update the number of connections, 61 ... Master, 62 ... Audio player, 63 ... DVD player (5c
h), 64 ... CD player (2ch), 65 ... Memory table, 66 ... Discrimination unit, 67 ... Sound effect, 68 ... Selector, 69 ... Determination unit, 70 ...
... antenna, 71 ... TV tuner, 72 ... antenna, 73 ... MP3 player, 74 ... antenna, 7
5: Slave, 76: Headphones (2ch), 77
... antenna, 78 ... speaker (5ch), 79 ...
Center speaker (C), 80 ... Antenna, 81 ... Left speaker (L), 82 ... Antenna, 83 ... Right speaker (R), 84 ... Antenna, 85 ... Rear left speaker (RL), 86 ...... Antenna, 87 ...... Rear right speaker (RR), 88 ...... Antenna

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Noboru Nakagawa             6-735 Kita-Shinagawa, Shinagawa-ku, Tokyo Soni             -Inside the corporation (72) Inventor Tadashi Fukami             6-735 Kita-Shinagawa, Shinagawa-ku, Tokyo Soni             -Inside the corporation (72) Inventor Toru Hayashibara             6-735 Kita-Shinagawa, Shinagawa-ku, Tokyo Soni             -Inside the corporation F-term (reference) 5D062 BB10                 5K030 HB17 HC14 JL01 JT09 LB05                 5K033 BA01 BA14 CB17 CC01 DA01                       DA19 EC04                 5K048 AA05 BA02 DA02 DB01 EB01                       GC02 HA01

Claims (12)

[Claims] 1. A transmission / reception system that performs transmission signal processing on an input signal from a transmission apparatus in a network to transmit the signal and performs reception signal processing on a signal received by a reception apparatus in the network and outputs the signal. Searching means for searching for the presence of a receiving device in the network, obtaining means for obtaining the address of the receiving device uniquely assigned in the network, and connecting to the receiving device by designating the address. Connection means, storage means for storing priority information corresponding to the address of the receiving device based on the connection status by the connecting means; and a receiving device of the connection destination by the connecting means based on the priority information. A transmitting device having a connection destination selecting unit that automatically selects, and that the search is performed from the transmitting device. A receiving device having a detecting means for outputting, and a notifying means for notifying the transmitting device of its own address uniquely assigned in the network when the detecting device detects a search from the transmitting device. A transmission / reception system comprising: 2. The transmission / reception system according to claim 1, wherein the priority order information is time stamp information that was previously connected to the receiving device at the address. 3. The transmission / reception system according to claim 1, wherein the priority information is information on the number of times of connection with the receiving device having the address in the past. 4. The priority information is time stamp information that has been connected to the receiving device having the address in the past, or connection number information that has been connected to the receiving device having the address in the past, and the time stamp information or the connection number. The transmission / reception system according to claim 1, wherein information is switched to enable a connection operation. 5. Based on the time stamp information, a receiving device having an address corresponding to the newest time stamp information is tried in order from a receiving device having an address corresponding to the newest time stamp information until the connection is established. The transmission / reception system according to claim 2, wherein connection attempts are repeated. 6. Based on the connection count information, connection attempts are made in order from a receiving device having an address corresponding to the largest connection count information to a receiving device having an address corresponding to the smallest connection count information, until the connection is established. The transmission / reception system according to claim 3, wherein connection attempts are repeated. 7. The priority information is time stamp information that has been connected to a receiving device of the address in the past, or connection frequency information that has been connected to a receiving device of the address in the past, and based on the time stamp information, Attempts are made in order from the receiver with the address corresponding to the latest time stamp information to the receiver with the address corresponding to the oldest time stamp information, and the above connection attempts are repeated until a connection is established, or based on the above connection count information hand,
It is possible to switch the operation from the receiving device with the address corresponding to the largest number of connection times to the receiving device with the address corresponding to the smallest number of connection times in order, and to repeat the connection trial until a connection is established. The transmission / reception system according to claim 1, which is characterized in that. 8. The transmission / reception system according to claim 1, wherein the priority order information is updated based on a connection operation. 9. The transmission / reception system according to claim 1, wherein the user can arbitrarily set the priority order regardless of the priority order information. 10. The transmission / reception system according to claim 1, wherein selection of a connection destination based on the priority information and selection of an arbitrary connection destination by a user can be switched. 11. A transmission / reception method in which a transmission signal processing is performed on an input signal from a transmission device in a network for transmission, and a signal received by a reception device in the network is subjected to reception signal processing and output. A search step for searching for the presence of a receiving device in the network, an obtaining step for obtaining the address of the receiving device uniquely assigned in the network, and A storage step of storing priority information corresponding to the address of the receiving device; a connection destination selecting step of automatically selecting a receiving device of the connection destination in the connection step based on the priority information; This is the connection step for connecting to the receiving device by specifying the address, and the processing in the receiving device. , A detection step of detecting that a search is being performed from the transmission device, and when the search from the transmission device is detected by the detection step, the own address uniquely given in the network is A transmitting / receiving method, comprising: a notifying step of notifying the transmitting device. 12. The transmission / reception method according to claim 11, further comprising a comparison step of comparing the address stored in the storage step with the address acquired in the acquisition step.