WO2003092269A1 - Procede et station de demande de selection de contenu, station de fourniture de contenu, appareil d'indication de commutation de contenu, programme, support d'enregistrement lisible par ordinateur sur lequel un programme est enregistre, et systeme de reseau - Google Patents
Procede et station de demande de selection de contenu, station de fourniture de contenu, appareil d'indication de commutation de contenu, programme, support d'enregistrement lisible par ordinateur sur lequel un programme est enregistre, et systeme de reseau Download PDFInfo
- Publication number
- WO2003092269A1 WO2003092269A1 PCT/JP2003/005090 JP0305090W WO03092269A1 WO 2003092269 A1 WO2003092269 A1 WO 2003092269A1 JP 0305090 W JP0305090 W JP 0305090W WO 03092269 A1 WO03092269 A1 WO 03092269A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- content
- station
- communication station
- communication
- content selection
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/41—Structure of client; Structure of client peripherals
- H04N21/414—Specialised client platforms, e.g. receiver in car or embedded in a mobile appliance
- H04N21/4147—PVR [Personal Video Recorder]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/41—Structure of client; Structure of client peripherals
- H04N21/4104—Peripherals receiving signals from specially adapted client devices
- H04N21/4135—Peripherals receiving signals from specially adapted client devices external recorder
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/433—Content storage operation, e.g. storage operation in response to a pause request, caching operations
- H04N21/4332—Content storage operation, e.g. storage operation in response to a pause request, caching operations by placing content in organized collections, e.g. local EPG data repository
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/433—Content storage operation, e.g. storage operation in response to a pause request, caching operations
- H04N21/4334—Recording operations
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/436—Interfacing a local distribution network, e.g. communicating with another STB or one or more peripheral devices inside the home
- H04N21/43615—Interfacing a Home Network, e.g. for connecting the client to a plurality of peripherals
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/47—End-user applications
- H04N21/482—End-user interface for program selection
- H04N21/4828—End-user interface for program selection for searching program descriptors
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/16—Analogue secrecy systems; Analogue subscription systems
- H04N7/173—Analogue secrecy systems; Analogue subscription systems with two-way working, e.g. subscriber sending a programme selection signal
- H04N7/17309—Transmission or handling of upstream communications
- H04N7/17318—Direct or substantially direct transmission and handling of requests
Definitions
- Content selection method Content selection request station, content provider station, content switching indicator, program, computer-readable recording medium storing the program, network system
- the present invention is directed to a content selection method for selecting desired content from a plurality of device providing stations having content, a content selection requesting station, a content providing station, a content switching indicator, a program, and a program storing a program. It relates to computer-readable recording media and network systems. Background art
- contents such as video recorders and playback devices are used by connecting to a television.
- contents such as video recorders and playback devices are used by connecting to a television.
- contents such as video recorders and playback devices are used by connecting to a television.
- contents such as video recorders and playback devices are used by connecting to a television.
- TV broadcast when there is only one TV, while the TV broadcast is being received on the TV, it is not possible to play and watch the video using the TV.
- the TV without the video playback device cannot play and watch the video.
- Patent Document 1 discloses that the video can be reproduced on a television receiver at hand using a remotely located video device using wireless communication.
- Patent Document 1 Japanese Unexamined Patent Publication “Japanese Unexamined Patent Application Publication No. 2000-134504 (public date: May 12, 2000)”
- the above-described conventional technique is to select a device between two stations, that is, a remotely located video device and a television receiver at hand. If the devices to be remotely controlled are distributed in multiple stations, the operator first checks which station the desired device is located in, selects a station, and then selects the device. You have to go through the steps of choosing Therefore, there is a problem that a desired device cannot be easily selected. Disclosure of the invention
- the present invention has been made to solve the above problems, and an object of the present invention is to make it possible to easily select a desired content even if the content is distributed to a plurality of stations. It is an object of the present invention to provide a selection method, a content selection requesting station, a content providing station, a content switching indicator, a program, a computer-readable recording medium storing a program, and a network system.
- a content selection method is a content selection method for selecting a plurality of content providing stations from a content selection requesting station, wherein the content selection requesting station selects the content providing station.
- a rule is stored, the content selection request station receives an input of a content selection request according to an input from an operator, and selects one of the content providing stations according to the selection rule, and This is a method of transmitting a content selection request to the specified content providing station.
- the operator can request the content at the content selection requesting station.
- the content in one content providing station is selected in the content selection request station according to the selection rule. Therefore, the operator only needs to know what content the user wants to select, and does not need to check to which station the content desired to be selected belongs. Therefore, even if the content is distributed to a plurality of stations, the desired content can be easily selected.
- the content selection requesting station according to the present invention provides the content selection station having a plurality of content providing stations. A content selection requesting station for selecting a desired content from among them transmits a content selection request to the content providing station according to the above content selection method.
- the content selection request is transmitted to the content providing station, and the content of the content providing station is received one by one from the content providing station. Therefore, the operator only needs to know what the content to be selected is, and does not need to check to which station the content to be selected belongs. Therefore, even if the contents are distributed to a plurality of stations, desired contents can be easily selected.
- the content providing station is a content providing station selected from the content selection requesting station and transmitting the content of its own content to the content selection requesting station.
- the content selection request is received from the selection request station.
- the content selection request station is selected and the own station has The content is selected one by one from the contents to be transmitted, and the content of the content is transmitted to the content selection requesting station. Therefore, the operator only needs to know what content he / she wants to select, and does not need to check to which station the content desired to be selected belongs. Therefore, the desired content can be easily selected even if the content is distributed to a plurality of stations.
- a content switching instruction device is used in the above content selection method, and transmits a content switching instruction from an operator to a content selection requesting station.
- the operator only needs to always perform the same operation and always send the same instruction to the content selection requesting station, and the content providing station still has content remaining.
- Each station determines whether or not it is available, and if there are no remaining stations, it can be switched to the next station or content. Therefore, the operator only has to perform the same operation at all times, such as pressing the same button or turning the same dial in the same direction. There is no need to take steps such as returning to the selection operation. Therefore, a desired content can be selected more easily.
- FIG. 1 is a block diagram showing a configuration example on the video receiving side.
- FIG. 2 is a block diagram showing a configuration example on the video transmission side.
- FIG. 3 is a drawing showing the timing in each process.
- FIG. 4 is a flowchart showing a video reception start process on the video reception side.
- FIG. 5 is a flowchart showing a video reception start process on the video reception side.
- FIG. 6 is a video reception start process on the video reception side.
- FIG. 7 is a flowchart showing a video receiving end process on the video receiving side.
- FIG. 8 is a flowchart showing a video transmission start process on the video transmission side.
- FIG. 9 is a flowchart showing a video transmission start process on the video transmission side.
- FIG. 10 is a video transmission end process on the video transmission side. It is a flowchart showing a process.
- FIG. 11 is a diagram showing a configuration example of a packet.
- FIG. 12 is a block diagram showing a configuration example of the system.
- FIG. 13 is a block diagram illustrating a configuration example of a communication station.
- FIG. 14 is a flowchart showing a device switching process on the local communication station side.
- FIG. 15 is a flowchart showing a device switching process on the remote communication station side.
- Figure 16 shows the order of data exchange between communication stations. It is.
- FIG. 17 is a drawing showing an example of the device setting management table.
- FIG. 18 is a drawing showing an example of the selection order management table.
- FIG. 19 is a drawing showing an example of the device setting management table.
- FIG. 20 is a drawing showing an example of the selection order management table.
- FIG. 21 is a drawing showing an example of the device setting management table.
- FIG. 22 is a drawing showing an example of the selection order management table.
- FIG. 23 is a plan view showing an example of an overview of the controller.
- FIG. 24 is a plan view showing an example of an overview of the controller.
- FIG. 25 is a drawing showing an example of the selection order management table.
- FIG. 26 is a drawing showing an example of the selection order management table.
- FIG. 27 is a drawing showing an example of the selection order management table.
- FIG. 28 is a drawing showing an example of the device setting management table.
- FIG. 29 is a drawing showing an example of the device setting management table.
- FIG. 30 is a diagram showing an example of the device setting management table.
- FIG. 31 is a drawing showing an example of the device setting management table.
- FIG. 32 is a drawing showing an example of the device setting management table.
- FIG. 33 is a drawing showing an example of the device setting management table.
- FIG. 34 is a drawing showing an example of the device setting management table. BEST MODE FOR CARRYING OUT THE INVENTION ''
- a content selection requesting station (local communication station)
- a desired content is selected from the contents provided by a number of content providing stations (remote communication stations).
- connection object is, for example, a device (hardware) that is appropriately connected to a communication device serving as a content providing station by a connection code or the like.
- the device include a video tape deck and a DVD player.
- other video recording and playback devices For example, while in a room with a TV receiver but no DVD player, operating a DVD player in another room by communication and projecting the image on the TV receiver in the original room. It can take the form.
- a wireless communication device as a connection object selection request station is placed in the star where the operator is located, and a wireless communication device as a connection object providing station is placed in the room where the DVD player is placed. (Station) and the two devices communicate with each other to realize the above-mentioned reproduction. Note that a wired connection may be used.
- connection object selection requesting station is a communication station on the video receiving side
- each connection object providing station is a communication station on the video transmitting side.
- connection target selection request station oral communication station
- connection target provider stations remote communication stations
- the local communication station A starts the remote communication station C in a predetermined order. Is selected and the remote Device f is selected according to a predetermined order in bureau C.
- the switch button of the controller again, the completion of the switching to all the devices in the remote communication station C is transmitted to the local communication station A, and the following sequence is followed in accordance with the above-described order.
- the remote communication station B which is a remote communication station, is selected, and the device a is selected in the remote communication station B in the same predetermined order.
- Figure 3 shows a timing diagram (showing the order and contents of message transmission) in the processing described below.
- Initial setting (2) Scan, Join, Authentication, Association processing
- Device information collection processing (3) Video transmission start processing
- Video transmission end processing Yes (5) Video transmission end processing Yes.
- description will be given along this classification.
- all the steps described in each flowchart are not necessarily described in duplicate, but each processing is appropriately performed according to the process content described in each flowchart. I do.
- the power-on state of the communication station means that the communication station can receive the radio signal received by the radio section and analyze the content, and the communication station receives the radio signal at the control signal input section. Indicates that the control signal is received and its contents can be analyzed, and power consumption etc.
- some or all of the blocks that are not necessary for the above operation may be in a standby state where they are not operating. In this case, Ri by the communication station controller 1 1 0 4 judgment, leave to allow possible force s operating the respective blocks when it becomes necessary.
- the sequence of turning on the power at the communication station on the video transmitting side and the communication station on the video receiving side is arbitrary. Also, when there are a plurality of communication stations on the video transmission side and communication stations on the video reception side on the network, the order of turning on the power is arbitrary.
- FIG. 1 is a block diagram of the video receiving side of the present embodiment
- FIG. 2 is a block diagram of the video transmitting side of the present embodiment
- a controller A 1200 is a controller of a communication station A 110
- a controller a 130 is a controller of a device a 230 on the video transmission side. It is a mouth-to-mouth.
- one display device is connected to one communication station on the video receiving side, but a plurality of display devices may be connected.
- the image receiving side has a configuration in which one communication station has one controller for one communication station, but there may be a plurality of controllers.
- the controller is generally assumed to be a remote controller, but this may be built in the communication station.
- the communication station may include both a stored controller and a remote controller.
- the video receiving side has a configuration in which one communication station has one controller for the equipment connected to the video transmitting side, but there may be more than one.
- On the video transmission side three devices are connected to one communication station. However, the number of devices that can be connected to the video transmission side communication station is arbitrary. The number of devices that are actually connected to the system is arbitrary.
- the flow of the following process is as follows for the video receiving side.
- the video transmission side corresponds to the flowchart shown in FIG.
- the user Before using the system, the user sets up network parameters and sets various network parameters for security. In the present embodiment, these processes will be described by taking IEEE 802.11 as an example.
- a user inputs a network name to specify a group of devices for identifying a communication station connected to the network. For example, in IEEE 802.11, communication stations that want to connect to the same wireless network must set the network name called SSID to the same value.
- the SSID is set by the following method (S101, S151). An SSID value that is always different for each product is recorded in the connection information storage unit 122 of the controller A 1200 when the product is manufactured.
- the user must input the control signal input section 1 1 0 2 of communication station A 1 1 0 0 and the control signal output section of controller A 1 2 0 0 At the position where communication is possible between the two terminals, perform the operation for setting the SSID using the user input unit 123 of the controller A1200.
- This operation is, for example, an operation of pressing a “SSID setting button” provided in the user input section 123.
- the controller that detected the SSID setting operation by the user in the user input section 123 reads the SSID recorded at the time of manufacture from the connection information storage section 122, and reads the value from the controller.
- the signal is converted to a signal and output from the control signal output section 1201.
- This infrared signal is received by the control signal input section 1102 of the communication station A1100 and sent to the communication station control section 1104. Notified.
- the communication station control section 1104 detects the SSID value from this signal and stores it in its own station information storage section 1101. If you want to set the same value as that set for communication station A1100 as the SSID of communication station B2100, the user must input the control signal input section 2 of communication station B2100. At a position where communication is possible between 107 and the control signal output section 1 of the controller A1200, at the user input section 1203 of the controller A1200 Perform the operation for setting the SSID. In the communication station B210, the SSID is stored in the own station information storage unit 2104 in the same flow as the communication station A110.
- the user can use another controller to perform the above SSID setting process, and the SSID recorded in the connection information storage unit of each controller Since the SSID differs for each product, a different SSID must be set. Communication will not be crossed because the same SSID is used in multiple networks. Further, in the present embodiment, the processing when establishing a network between two communication stations has been described, but all communication stations wishing to connect to the same network are controlled by the same controller. SSID setting By performing the above operation, all communication stations can be connected to the same network. In that case, as long as the SSID is set for all communication stations using the same controller, the SSID setting may be performed using the controller of any communication station.
- the present embodiment uses the following method similar to the above-described SSID setting method.
- the WEP key value that is always different for each product is recorded in the connection information storage section 122 of the controller A1200 when the product is manufactured.
- the user To set the WEP key for communication station A110, the user must use the control signal input section 1102 of communication station A100 and the control signal of controller A1200. Control signal output unit. At a position where communication is possible between the units, we set the WEP key at the user input unit 123 of the controller A1200. 5090
- This operation is, for example, an operation of pressing a “WEP key setting button” provided on the user input section 123.
- the controller control unit 1204 which detects the user's WEP key setting operation at the user input unit 1203, reads the WEP key recorded at the time of shipment from the connection information storage unit 1202. The value is converted to an infrared signal and output from the control signal output section 122. This infrared signal is received by the control signal input section 1102 of the communication station A110, and is notified to the communication station control section 1104.
- the communication station control unit 1104 detects the WEP key value from this signal and stores it in its own station information storage unit 1101.
- the user inputs the control signal of communication station B2100.
- the user input unit 1 of the controller A1 Perform the operation for setting the WEP key.
- the WEP key is stored in the own station information storage section 2104 in the same flow as the communication station A1100. After that, for example, when data is transmitted from the communication station B2100 to the communication station All0100, if encryption is required, the communication station B2100 stores the local station information storage unit.
- communication station A 110 0 can transmit the WEP key obtained from its own station information storage unit 110 1. If decryption is performed by key, data can be restored. However, other communication stations that have not set the WEP key using controller A 1200 cannot restore this data, and communication station B 210 and communication station A 100 Communication while maintaining security is possible between them. If you want to use another WEP key for encryption at the same time In this case, if the user performs the WEP key setting process described above using another controller, the WEP key recorded in the connection information storage unit of each controller differs for each product. By setting the WEP key, even if there are multiple pairs of transmitting and receiving stations on the network, each can perform transmission while maintaining security.
- the processing when the WEP key is shared between two communication stations has been described.
- all communication stations desiring to share the same WEP key are controlled by the same controller.
- the WEP key setting operation it is possible for all communication stations to share the same WEP key.
- the SSID setting may be performed using the controller of any communication station.
- the SSID setting and the WEP key setting are performed separately.
- one button provided in the user input section 123 of the controller A 1200 is used as a trigger. If the transmission of the SSID and the transmission of the WEP key are performed sequentially, the user can set the SSID and the WEP key with a single button operation.
- These are the items that need to be set in a system that uses IEEE 802.11 as a network.However, when using other network systems, establishing a network or securing If you need to set parameters for this, set them here first.
- a communication station user name is a numeric or meaningless character string. Instead, it is a nickname of a communication station that is easy for the user to understand, such as “communication station in the children's room on the second floor”.
- the user when inputting the communication station user name of the communication station A110, the user performs a character string input operation using the user input section 123 of the controller A1200. This operation is converted into a control signal in the controller control section 124 and output from the control signal output section 122.
- the communication station control section 1104 analyzes the received signal and transmits a character string or the like. After being converted to the station user name, it is stored in the own station information storage unit 1101. It is desirable to register the communication station user name when starting the communication station for the first time, but it may be performed at other times. If the communication station user name is not registered, communication may be performed using default values set at the time of manufacturing the product.
- the user connects the radio station on the video receiving side to the display device and the controller (S104).
- the radio station on the video receiving side on the video receiving side, transmission of a video signal from the video signal output section 1108 of the communication station A110 to the video signal input section 1442 of the display device 1400.
- this connection is assumed to be a wired connection, but the connection may be wireless.
- the controller A 1 200 has a controller signal output section 1 201 And the control signal input section 1102 of the communication station A100 Beauty, Con preparative roll signal output unit con preparative port one la a 1 3 0 0 1 3 0 1 and Con Although no bets connection processing roll signal input unit 1 1 0 2 particularly necessary, con preparative roller communication station If some kind of connection processing is necessary between the two, the connection processing shall be performed here. This means, for example, that if the controller is connected to a communication station by wire, the cable will interconnect the controller and the communication station.
- the user connects the device with the communication station on the video transmission side (S154).
- the communication station B2100 is connected to the device a2300, the device b2400 and the device c2500.
- Device a Transmission of the video signal from the video signal output section 2301 of the 2301 to the video signal input section 2110 of the communication station B2100, and the control of the communication station B2100
- the communication station B2100 has a state in which a control signal can be transmitted from the unit signal output unit 2111 to the control signal input unit 2304 of the device a230. It is assumed that the connection between the device and the device a2300 has been completed.
- the communication station B2100 is connected to the machine: ⁇ :.) 2400, and the communication station B2100 is connected to the device c2500.
- the order of the connection process of the device on the video transmission side and the connection process of the device on the video reception side is arbitrary.
- the order in which devices are connected to communication station B is also arbitrary.
- the communication station on the video transmitting side collects and stores the information of the devices connected to its own station in order to respond later when it receives an inquiry from another communication station (S155) ).
- a connection port for connecting a communication station and a device is called a plug.
- a plurality of plugs may be provided for each communication station. Assign this ID and manage it.
- the communication station manages the information of each device for each plug, and this information is called plug information.
- the plug information since the plug corresponds to the video signal output section 1108 and the video signal input section 2111, 211, 2114, the plug information is implemented by each communication station. Entries will be prepared corresponding to the video signal output section and video signal input section. For example, at the communication station 110 on the video receiving side, the entry corresponding to the display device connected to the video signal output unit 1108 is called the plug information 1, and the communication on the video transmitting side is performed.
- the entry corresponding to the device a connected to the video signal input unit 2110 is referred to as “Brag information 1”.
- the contents of the plug information include the device user name described later, the type of the connected device, the name of the content output from the device (such as the title of a movie or a program, the file name, etc.), and the device support.
- the device user name and the type of connected device are information used by the user to easily identify the plug. This is presented before the user selects a device to make it easier to understand the selection target and to show the user what the device currently displayed is.
- the encoding method and bit rate supported by the device determine whether the content output from the transmitting device can be played back on the receiving device, and determine whether the content can be played back on the receiving device. This is used to determine if there is a + band remaining for content transmission.
- Information on whether or not the preparation for transmitting information between the communication station and the device is completed is used to determine whether or not the device is permitted to switch. Information on whether the device is currently being used by any communication station is used to manage control of the device.
- the device user name included in the plug information is not a numeric value or a meaningless character string, but a nickname of the device that is easy for the user to understand, such as “S Company VTR”.
- the user uses the user input section 222 of the controller B 220. To perform a character string input operation. This operation is converted into a control signal in the controller control section 222, and is output from the control signal output section 222.
- the control signal input section 210 of communication station B 210 receives this signal, the communication station control section 210 analyzes the received signal and outputs the device user name such as a character string. After that, it is stored as plug information in its own station information storage unit 1101.
- the registration of the device user name be performed after the device is connected to the communication station when the communication station is started for the first time, but it may be performed at other times.
- communication may be performed using the default value set when the product was manufactured.
- the default value for example, it is conceivable to set a number corresponding to each of the video signal input units, such as “input 1”.
- the device type included in the plug information is numerical value or character string information for the user to identify the device type. This information may be specified as a character string such as "VTRJ", or a numeric value whose association between the meaning and the value set is uniquely determined by all communication stations (for example, the numerical value 1 means fVTRl). Do ) This information is basically input using the controller B2200 like the device user name, but it may be automatically obtained by the communication station B2100.
- the video output from the communication station to the device or the video input from the device to the communication station is an analog signal, which is converted into a digital signal by the video encoding unit.
- the encoding method and bit rate included in the video are determined by the performance of the video encoding unit. For example, when acquiring the plug information of the device a 230 connected to the communication station B 210 0, the communication station control unit 210 9 sends the plug information to the video encoding unit 211 1 1. Command to notify the encoding method used to encode the input video signal into a digital signal and the bit rate value, and send the reported information to the local station information storage unit 210 4 And save it.
- each communication station performs network establishment processing.
- the trigger to start the network establishment process may be when any operation is performed by the user, or may be automatically started at the discretion of the communication station.
- a description will be given in accordance with a network establishment process based on IEEE802.11. What is used as a network route is not limited to wireless, but may be wired.
- the communication protocol is IEE PT / JP03 / 05090
- a protocol other than E802.11.1 may be used.
- a communication station trying to connect to the network performs a process called Scan to find a nearby network.
- Scan When a scan is performed, information such as the SS ID is returned from an access point (hereinafter abbreviated as AP), which is a terminal representing each network, for all the networks existing in the vicinity.
- AP access point
- a process called Join can be performed only on a network that meets the conditions, such as having the same SSID as the SSID set for its own station, among the APs found by Scan.
- Join is a process of requesting an AP to grant permission to join a network. If participation in the network is permitted, the AP returns a message to that effect to the communication station, and a process called Authentication can be performed.
- Authentication can be performed.
- the AP transmits data after performing WEP encryption it is necessary to confirm whether the WEP key of the AP is the same as the WEP key of the communication station attempting to connect to the network. Do.
- the WEP key is different, the communication station cannot basically connect to the network.
- MAC A de Les is ⁇ address of the communication station to use in Media Access Control layer in ⁇ SI reference model, and have contact to the radio unit 1 1 0 6 and the radio unit 2 1 0 1, the transmission and reception of wireless data partner Used to define.
- the MAC address is given on a product-by-product basis when the product is manufactured, and its address must be unique worldwide.
- a communication station address is an address specified by a layer higher than the MAC layer, and is a network in which data is transmitted across multiple MAC layer protocols (for example, a wireless connection MAC layer). IEEE802.11 is used as the protocol, and Ethernet (registered trademark) is used as the MAC layer protocol in the wired connection that connects the wireless connection to the external network.
- Packet 401 is a destination MAC address 402, a destination MAC address 400, a destination communication station address 404, a source communication station address 405, and a command identifier 400. 6. It has contents 407 corresponding to the command identifier 406. (Device information collection)
- Each communication station collects information on all the communication stations existing on the network and the devices connected to it in order to specify the device that receives the video.
- the basic flow is that a communication station that wants to acquire information transmits a device information request command to all communication stations, and the communication station that receives it returns its own information.
- processing when the communication station A1100 on the video receiving side acquires information on the communication station B2100 will be described.
- the communication station control unit 111 instructs the wireless signal generation unit 1103 to generate a wireless signal.
- an identifier indicating that this radio signal is a device information request command and a communication station address of the own station acquired from the own station information storage unit 210 are included.
- the destination address of the wireless signal an address that is addressed to all communication stations is specified for both the MAC address and the communication station address.
- the generated wireless signal is transmitted via the wireless section 1106 (S111).
- the radio section 210 of communication station B 210 receives a radio signal, and the radio signal analysis section 2102 recognizes from the destination MAC address that it is a radio signal addressed to its own station. Then, the identifier of the device information request command included in the wireless signal, the communication station address of the destination, and the communication station address of the transmission source are obtained, and the communication station control unit 210 is notified. I do.
- the communication station control unit 211 recognizes that the device information request command is addressed to its own station based on the identifier ′ of the device information request command and the destination communication station address, the communication station address of the transmission source is determined.
- An identifier indicating that the response is a device information request command response and a wireless signal generation unit 21 generate a wireless signal including the information obtained from the own station information storage unit 210. 08, and transmitted via the radio section 2101.
- the information to be included in the radio signal includes the MAC address and the communication station address of the own station, the communication station user name, all plug information of the own station, and the IEEE 802.111 described later by the own station. Information on whether or not it is an HC in Japan is considered.
- SI12 to SI16 the radio signal is received by the radio unit 1106 of the communication station Al100, and the radio signal analysis unit 1107 receives the destination MAC address from the MAC address.
- the signal is a wireless signal addressed to the own station, it further obtains the identifier of the device information request command response included in the wireless signal and all other information of the other station, and obtains the communication station control unit 11 Notify 0 4.
- the communication station control unit 1104 recognizes that the command is addressed to its own station based on the identifier of the device information request command response and the communication station address of the destination, the radio signal analysis unit 1107 All the notified other station information is stored in the other station information storage unit 110 as a table relating to the communication station address of the other station (S115).
- the response to the device information request command is performed by all communication stations on the network, similarly to communication station B.
- the communication station A can obtain information on all communication stations on the network and the devices connected to the communication stations.
- the communication station control unit 1104 of communication station A 110 cannot know whether or not all terminals on the network have returned a response to the device information request command.
- the processing on the video receiving side has been described, but the video transmitting side can also acquire information on other communication stations and devices by performing the same processing.
- each communication station collects all the plug information of the other communication stations.
- each communication station can perform the switching operation without knowing information on what kind of communication station other communication station is or what kind of plug exists in each communication station. .
- the information to be included in the radio signal of the device information request command response by the communication station B2100 is either the MAC address of the own station and the communication station address of the own station, or only one of them. It is also conceivable to configure it.
- the following processing flow corresponds to the flowchart shown in FIG. 6 for the video receiving side, and corresponds to the flowchart shown in FIG. 9 for the video transmitting side.
- the communication station When information on all communication stations and devices on the network is obtained, the communication station automatically determines the pair of communication station and device with which to send and receive video. As a basic flow, the communication station Al 100 checks whether or not the own station has previously received video from any communication station (S122). If the video is being received from any of the communication stations, it requests the transmission of the video to the last connected communication station (S124, SI22). If no video has been received from any of the communication stations, a new recipient of the video is determined according to a specific rule (S123, S124).
- the communication station A1100 on the video receiving side requests the communication station B2100 to transmit a video. If the communication station Al 100 has previously received a video from any of the communication stations, the local station information storage section 1101 stores the video as the video receiving partner information at the end, and finally stores the video.
- the communication station address, MAC address, communication station user name, plug ID, plug information, etc. are stored.
- the video has not been received from any communication station, the communication station that received the video has lost the network after performing the explicit leave process, or has been receiving the video If a certain period of time has elapsed, it is assumed that this video receiving partner information has been deleted.
- a communication station explicitly leaves the network and then leaves the network will be described with reference to FIG. In Fig. 1, if the wireless station All 100 is a video receiver, the display device 140 is a TV, and the controller A is a remote control of a video receiver, the communication station explicitly performs the disconnection process. The following two situations are considered as specific examples of leaving the network.
- the user turns off the power of the video receiver (communication station A1100) using the remote control (controller A1200) of the video receiver (communication station A1100). Is performed. It is conceivable to perform such an operation when the user intends to end viewing of the video via the video receiver (communication station A110).
- the communication station A1100 receives the control signals from the controller A12000, the communication station A1100 transmits the control signal from the network via the radio section A1106. Transmits a radio signal indicating departure.
- the second situation is where the user performs an operation of turning off the power of the TV (display device 140 0).
- the video receiver (communication station A1100) shall have means (not shown) for detecting the power-off of the TV (display device 1400). Video on the TV (display device 1400) It is conceivable to perform such an operation when the user wants to end all viewing.
- the communication station A1100 detects that the power of the display device has turned to ⁇ FF by means not shown, the communication station A1100 connects to the network via the radio section A1106. A wireless signal indicating the departure from the device is transmitted.
- the communication station control section 1104 of communication station A 1100 checks whether or not the own station information storage section 1101 stores information on the communication station of the video reception partner, and if this information is stored. Requests the video transmission to the party specified by the communication station address, MAC address, and plug ID stored in it. If the communication station information of the receiving station has not been saved, the receiver of the new image based on the acquired information of all communication stations previously stored in the other station information storage unit 210 Select the set of communication station and equipment to be used, and make a video transmission request.
- a selection method for example, a communication station that has the smallest value when the MAC address is viewed as a numerical value is selected, and is specified by the plug information of the smallest plug ID in the communication station A method such as selecting a device is conceivable.
- the plug information obtained earlier is referred to determine whether the device can be used, and for some reason. If it is determined that the device cannot be used, it may be possible to stop selecting that device and select another device.
- the following conditions (1) to (4) can be considered as conditions for canceling the device selection.
- the method of storing both the address (communication station address and MAC address) and plug ID of the other party that the communication station on the image receiving side last received the image is stored.
- a method is also conceivable in which the communication station on the video receiving side stores only the address of the other party receiving the video last, and the communication station on the video transmitting side stores information corresponding to the plug ID. The information management method in this case will be described later.
- a request for video transmission is made (S124).
- the communication station A1100 has decided to communicate with the communication station B2100 to receive the image.
- the communication station A1100 performs communication.
- the processing when requesting the station B2100 for video transmission will be described.
- the communication station control unit 1104 of the communication station Al 100 instructs the radio signal generation unit 1103 to generate a radio signal.
- the identifier indicating that this wireless signal is a video transmission request command, the communication station address of the own station, and the device selected as the other party to receive the video are connected. It includes the plug ID and the communication station address of the communication station to which the device is connected.
- the MAC address of the previously selected communication station is obtained from the other station information storage unit 1109 and specified.
- the generated radio signal is transmitted via the radio section 1106.
- the wireless signal of the communication station B2100 is received by the wireless section 2101 (S162 in Fig. 9), and the wireless signal analysis section 2102 sends the address from the destination MAC address to the own station. If the wireless signal is recognized, the identifier of the video transmission request command included in the wireless signal, the address of the destination communication station, It acquires the plug ID for which video transmission is requested, the address of the communication station of the transmission source, etc., and notifies the communication station control unit 210 of this. When recognizing the identifier of the video transmission request command, the communication station address of the destination, and the meaning of the command from the destination communication station address, the communication station control unit 210, using the plug ID, identifies the command.
- the criterion factor may be whether the device is currently in use, whether the device is powered on, and whether a video signal is being input from the device. It is optional to determine which of these is required.
- the plug information of the device for which video transmission is permitted is updated (S166).
- the information that needs to be updated may be information as to whether or not the device is being used, or a communication station address or a MAC address of a communication station to which the video of the device is transmitted.
- a radio signal of a video transmission request command response including information indicating the reason for not permitting video transmission is generated.
- the information indicating the reason for not permitting video transmission shall prescribe the value and its meaning in all communication stations (for example, the value 1 indicates that the specified device is currently in use. Therefore, video transmission is not allowed. ”) Also, a certain value shall mean that video transmission is permitted. Further, such a value is called a response status.
- the video sending user Controller that is the controller of station B2100 5090
- This may be designated to the communication station B2100 by performing an operation on the user input section 2223 of the controller B2200.
- This operation is, for example, an operation such as “press the non-transmission mode button of device a”.
- the controller control section 222 detects the input at the user input section 2203, generates a non-transmission mode setting signal, and outputs it via the control signal output section 2201.
- the control signal input section 210 of communication station B 210 receives this signal
- the communication station control section 210 detects that it is a non-transmission mode setting signal, and
- the plug information corresponding to the specified device is updated from the plug information stored in the station information storage unit 210.
- HC Hybrid Coordinator
- This signal includes information such as the MAC addresses of the transmitting and receiving stations of the stream, and the bit rate required for transmitting the data stream to be transmitted as the stream (stream information). Must be included).
- the stream transmitting station address specify the MAC address of the own station obtained from the own station information storage unit 210.
- the stream receiving station address specify the MAC address of the communication station of the video transmission destination, which is stored as plug information in the other station information storage unit 210. Further, the information such as the bit rate notified from the video encoding unit and stored as the plug information is specified as the stream information. This and The missing information is supplemented with appropriate values. Also, the destination of the ADDTS-request radio signal must be HC, but any of the communication stations on the network is HC, and which communication station is HC is determined by the communication station information described above. It has been confirmed at the time of collection, and the MAC address of the HC obtained there shall be specified.
- the generated ADDTS-request radio signal is transmitted via the radio unit 210.
- the video transmitting side registers the stream information for guaranteeing the communication band in the HC. However, the video receiving side may register the stream information.
- the wireless signal is exchanged several times between the stream transmitting station or receiving station and the HC, and preparations are made for bandwidth guarantee. This is in accordance with the draft of IEEE 80 2. lie, and is omitted (S166).
- the stream transmitting station After the stream transmitting station is ready for stream transmission between the stream transmitting station, the receiving station, and the HC, the stream transmitting station triggers and the HC transmits the stream. Start granting transmission rights to the station.
- the communication station control unit 210 of communication station B2100 completes the ADDTS processing (S1670) and detects that stream transmission is ready, control is performed.
- the signal output unit 211 is instructed to output the video output start signal to the device a 230 (S168).
- the communication station: B2100 needs to store the video output start signal of the device a in advance. Store this signal in the following way.
- the user Before and after connecting the device a 2300 to the communication station B 2100, the user has a controller B 2 200 that is a controller of the communication station B 2100.
- the controller a1300 which is the controller of the device a230, and the controller a1300, the control signal output section of each controller. Bring it to a position where a control signal can be input to the control signal input section 210 of the 210.
- the user starts recording of the video output start signal on the user input section 2203 of the controller B 22 ⁇ 0, and selects the plug corresponding to the device for recording the video output start signal.
- Perform the operation to specify the ID This operation is, for example, pressing the “remote control learning button” to specify the start of recording, and pressing the “input button” to specify the plug ID for recording.
- the controller control section 222 detects operation from the user input section 2203, and sends the control signal recording start signal and plug ID designation signal to the control signal output section 222. Output.
- the communication station control section 2109 When the control signal input section 2107 of the communication station B2100 detects that these signals are input, the communication station control section 2109 enters the video output start signal recording mode. At this time, the user may be notified in some way that the video output start signal recording mode has been entered. As a notification method, it is conceivable to turn on an LED provided in the communication station B2100.
- the user performs an operation for starting the video output of the device a2300 at the user input section 123 of the controller a1300.
- the device a 230 is a VTR
- the “power button” Pressing the "play button”.
- the controller control section 1303 that has detected the operation at the user input section 123 causes the control signal output section 1301 to output a video output start signal.
- the control signal input section 2107 of B2100 detects the input of the video output start signal during the video output start signal recording mode, and the communication station
- the control unit 210 converts the signal into a signal that can be stored in the local station information storage unit 210 (for example, if the control signal is an infrared signal, it samples it and converts it into a digital signal). After that, notify the communication station control city 210.
- the communication station control unit 210 is notified from the control signal input terminal 210 as plug information corresponding to the plug ID specified by the controller B 220 previously.
- the video output start signal is stored in the local station information storage unit 210.
- the user again notifies the communication station B2100 that the recording of the video output start signal is to be terminated by the controller B2200.
- the communication station control section 210 terminates the video output start signal recording mode, and terminates the recording of the control signal from the controller a130.
- the communication station control unit 209 stores the device a 2 in the own station information storage unit 210 from the plug ID. What is necessary is to search for the plug information of 300, extract the video output start signal therein, and output this signal to the control signal output unit 211.
- the communication station B2100 can output a video output start signal to all connected devices.
- the video output start signal When the video output start signal is received by the control signal input section 2304 of the device a 2303, the signal is analyzed, and the device control section 2303 receives the video output start signal. Recognizing that there is, the device control unit 2303 instructs the image generation unit 2302 to generate an image.
- the video generation unit 2302 generates a video, and transmits the video signal to the video signal input unit 2110 of the communication station B2100 via the video signal output unit 2301.
- the video signal input section 2110 of the communication station B2100 it is detected that a video signal has been input from the device a2300 (S169, S170).
- the communication station control unit 210 judges that the video signal input has been successful.
- the video encoding unit 2 1 1 1 1 encodes the input video signal, but the encoded video signal is not transmitted until transmission is actually completed by wireless signal (when retransmission is performed, etc.). Until it is completed), save it in the video encoding section 211.
- the storage location may be the communication station control unit 210. If the control signal output section 2 1 1 3 03 05090
- the video signal is input to the video signal input section 211 of communication station B2100. If not, the communication station control unit 210 judges that the input of the video signal has failed.
- the communication station control unit 1104 If the input of the video signal is successful, the communication station control unit 1104 generates the radio signal including the identifier indicating that it is a video transmission request command response, so that the radio signal generation unit 210 Command. At this time, information indicating that the video transmission is permitted and that the video transmission is also successful is included together with the communication station address of the own station, the plug ID for permitting the video transmission, and the like. In addition, as the destination MAC address of the wireless signal, the MAC address of the communication station that has requested the video transmission is acquired from the other station information storage unit 210 and designated. The generated radio signal is transmitted via the radio section 211 (S171).
- the communication station control unit 1104 When the input of the video signal fails, the communication station control unit 1104 generates the radio signal including the identifier indicating the response to the video transmission request command so that the radio signal generation unit 210 Command. At this time, video transmission is permitted along with the communication station address of the local station and a plug ID that permits video transmission, but information indicating that video input from the device has failed is included. Also, as the destination MAC address of the wireless signal, the MAC address of the communication station that has requested the video transmission is obtained from the other station information storage unit 210 and designated. The generated radio signal is transmitted via the radio section 211 (S174).
- the communication station B 2100 returns the video transmission request command response after retransmitting the video output start signal a certain number of times until the video signal from the device a 2300 is successfully input. It is also possible.
- the communication station control unit 210 9 requests HC to start granting transmission rights. This method conforms to the draft of IEEE 80 2. lie, but details are omitted.
- the HC transmits a radio signal indicating the transmission right to the communication station B2100. Send to the 0 MA C address. This radio signal contains information on the period during which the transmission right is granted.
- the communication station control unit 210 When the video signal input is successful, when a wireless signal indicating transmission right grant is received by the wireless unit 2101 of the communication station B2100, the signal passes through the wireless signal analysis unit 2102, The communication station control unit 210 is notified that the transmission right has been granted. At this time, information on the period during which the transmission right included in the wireless signal is granted is also notified. Until this period elapses, the communication station control unit 1104 extracts the encoded video signal stored in the video encoding unit by a fixed amount, and the radio signal generating unit 110 Order to generate a wireless signal including the video signal extracted in step 3.
- the wireless signal includes an identifier indicating that the video signal is being transmitted, so that when the wireless signal is received on the receiving side, it can be identified that the video signal is included. Also, in order to specify the source of the video signal on the receiving side, include the communication station address of the own station and the plug ID of the device that is inputting the video signal. The destination communication station address and destination MAC address of the radio signal are obtained and set from the other station information storage section 1109. This wireless signal is transmitted via the wireless section 2101 (S172).
- the communication station B2100 If the transmission right is granted when the video signal input has failed, the communication station B2100 generates a dummy video and transmits it to the receiving side. May be.
- the communication station control unit 210 of the communication station B 210 generates a dummy video signal, extracts a signal obtained by encoding the video signal, and extracts a fixed amount of the signal.
- a blue screen or the like can be considered.
- the encoding system, bit rate, etc. of this video shall be the same as those previously registered in the ADDTS process. It is also conceivable that the video encoder 221 instead of the communication station controller 209 generates a dummy video. On the receiving side, the dummy video is received and displayed on the display device, but the user can recognize that the video was not received correctly because it is a blueback video.
- a radio signal is received by the radio section 1106 of the communication station A110, and the radio signal analysis section 1107 may determine that the radio signal is from the destination MAC address to the own station. If recognized, the identifier of the video transmission request command response included in the wireless signal, the address of the destination communication station, the communication station address of the source communication station, the plug ID that requested the video transmission, The response status, the address of the communication station at the transmission source, and the like are obtained, and are notified to the communication station control unit 111.
- the communication station control unit 1104 recognizes the identifier of the video transmission request command response, the address of the communication station as the destination, and the meaning of the command that it is addressed to its own station.
- Communication station controller 1 1 0 4 It interprets the meaning of the response status and instructs the video superimposition unit 1105 to superimpose a message corresponding to the meaning on the video signal.
- the superimposed signal is input from the video signal output section 1108 to the video signal input section 1402 of the display device 1400, and passes through the display device control section 1443 to the display section 1404. 04 and presented to the user (S130). At this time, not only an error is displayed but also a video transmission may be automatically requested to another communication station or device.
- a method of presenting the error message to the user by displaying a character string or an icon on the display unit 1 4 0 4 of the display device 1 4 0 0 is connected to the communication station A 1 1 0 0 of the video receiving side
- an LED or LCD for presenting an error to the communication station A1100 may be provided.
- the response status is a value indicating that video transmission is not permitted (S131)
- the system is in a state of waiting for user input. If no response to the video transmission request command is returned (S127), an error message is displayed to the user. In this case, it is preferable to display a message that allows the user to easily understand that the video transmission request was not successful for a reason different from the case where the video transmission was not permitted by the partner communication station. For example, a message such as "No response to the radio signal was returned" can be considered.
- the system enters a video reception standby state (S132) and waits for video to be transmitted. If a wireless signal including a video signal cannot be received even after a certain period of time has elapsed (S133), the user is notified that the video transmission has been permitted but the video signal has not been transmitted thereafter. Present it (S136) and wait for user operation.
- the communication station A110 is "A3" in Fig. 6. State has been reached. ,
- the wireless signal of the communication station A1100 receives a wireless signal (S134), and the wireless signal analyzer 1107 receives a wireless signal from the destination MAC address to the own station. If the video signal is recognized, the identifier indicating that the video signal is included, the destination communication station address, the source communication station address, the source plug ID, and the video signal itself And notifies the communication station control unit 1104. The communication station control unit 1104 recognizes the identifier indicating that the video signal is included, the address of the destination communication station, and the reception of the video signal from the destination communication station address. Then, this signal is sent to the video decoding unit 111.
- the video decoding unit 111 decodes the received video signal into a format that can be displayed on the display device 140.
- the communication station control section 111 searches the other station information storage section 210 using the source communication station address / plug ID as a key, and communicates with the source communication station. Obtain information such as station user names and device user names. If necessary, the information is superimposed on the video decoded by the video decoder 111 in the video superimposing unit 1105 as a character or icon video. As the video to be superimposed at this time, text information such as the communication station user name of the communication station of the video transmission source and the device user name can be considered. After superimposing character information and the like on the decoded video signal, the video signal is input to the video signal input section 144 of the display device 1400 via the video signal output section 1108.
- the video signal input from the video signal input unit 140 2 is displayed on the display unit 140 4 via the display device control unit 140 3 (S 135). This allows the user to view the video transmitted from communication station B2100 It is possible to do so. At this point, the communication station A110 has reached the state of "A3" in FIG.
- the control signal is transmitted to the device a230 on the video transmitting side, and the device Perform the operation of a2300.
- the specific flow at this time is described below.
- the user enters the user's controller a1300 at any time.
- the desired operation is performed. This operation is, for example, pressing the fast-forward button if the controller a 1300 is a VTR remote control.
- a process for performing a fast-forward operation is described as an example of a process up to transmitting a user operation to a device.
- measures such as displaying an error message may be taken. If it is difficult to display this error message, without any action, the user acknowledges that the operation failed because the video was not displayed, and re-controls the controller.
- the system may be constructed on the assumption that the operation of a130 is performed.
- the control signal input port 1101 of the communication station A1100 receives the fast-forward start signal and converts it into a signal that can be transmitted as a wireless signal (for example, if the control signal is an infrared signal). If it is a signal, it samples it and converts it to a digital signal, etc.), and then notifies the communication station control unit 1104.
- the converted control signal is referred to as a “converted control signal”.
- the communication station control unit 1104 includes an identifier indicating that the converted control signal is included, and the converted control signal notified from the control signal input unit 1102.
- the wireless signal generation unit 1103 is instructed to generate a wireless signal including the signal.
- the destination MAC address of the wireless signal including the communication station address of its own station, the communication station address of the communication station that is the video source, the plug ID of the video source, etc. , Specify the MAC address of the video transmission source communication station. These pieces of information are obtained from the other station information storage unit 210.
- the radio signal of the communication station B2100 receives a radio signal, and the radio signal analysis section 2102 recognizes that it is a radio signal addressed to its own station from the destination MAC address. Then, the identifier indicating that the converted control signal is included, the address of the destination communication station, the plug ID for which video transmission is requested, the converted control signal, and the transmission The original communication station address and the like are acquired and notified to the communication station control unit 210.
- the communication station control unit 210 recognizes that the converted control signal is included from the identifier indicating that the converted control signal is included, the communication station control unit 211 specifies the plug ID. Control signal output section 2 1 1 7 corresponding to the Command to output the converted control signal notified by the wireless signal analyzer 210.
- the control signal output section 2 1 1 3 restores the control signal after conversion to a signal that can be output as a control signal again (for example, returns a sampled digital signal to an infrared signal again). , Outputs the fast-forward start signal as a control signal.
- control signal input section 2304 of the device a 230 When a control signal is received by the control signal input section 2304 of the device a 230, the signal is analyzed, and the device control section 2303 controls the device a 230 Execute fast forward operation as specified by the control signal (end of video transmission)
- the following processing flow corresponds to the flowchart shown in FIG. 7 for the communication station A 110, and to the flowchart shown in FIG. 10 for the communication station B 210.
- the user wants to end the transmission of the video while the video is being displayed, the user must connect the user input section 1 2 ⁇ 3 of the controller A 1200, which is the controller of the communication station All 100. Indicates that video transmission will be terminated by operation. This operation is, specifically, an operation such as “press the communication station power supply OFF button” provided on the controller A1200.
- controller control section 124 When the controller control section 124 detects an operation on the user input section 123, it instructs the control signal output section 122 to output a video transmission end signal. When the video transmission end signal is received by the control signal input section 1102 of the communication station A1100, the communication station control section 1104 requests that the user end the video transmission. Know that (S144).
- communication station A transmits to all communication stations that are transmitting and receiving video. Instruct the end of video transmission.
- a process for instructing communication station B to end video transmission will be described.
- the communication station control unit 1104 of the communication station A instructs the radio signal generation unit 1103 to generate a radio signal including an identifier indicating the video transmission end command.
- the communication station address and the MAC address of the communication station B and the plug ID are obtained from the other station information storage unit 1109 and included in the radio signal.
- the generated radio signal is transmitted via the radio section 1106 (S144), and then enters a radio signal waiting state (S145).
- the communication station B2100 will send the delivery confirmation wireless signal. Is returned (S184), and the communication station A110100 receives the acknowledgment radio signal (S147) to notify the communication station B210 of the intention to end the video transmission. We recognize that it was transmitted. If the acknowledgment radio signal has not been returned after a certain period of time has elapsed (S146), it is recognized that the radio signal including the video transmission end command was not correctly received by the communication station B210. However, until the delivery confirmation wireless signal can be received from the communication station B2100, processing such as retransmission of the wireless signal including the video transmission end command may be performed (S144).
- Communication station A performs the above processing for all communication stations that are transmitting and receiving video.
- the communication station A 110 If the communication station A 110 is finally not receiving video from any other communication station, it is not necessary to control power consumption by controlling the communication station control unit 110 It is also possible to stop the operation of the block and shift to the standby state. However, as described above, the power is completely turned off. Since it becomes impossible to respond to wireless signals from other devices when switching to, it is not desirable to switch to a completely power-off state. ⁇
- the wireless signal of the communication station B2100 is received by the wireless section 2101 (S182), and the wireless signal analysis section 2102 receives the wireless signal from the destination MAC address to its own station.
- the communication station control unit obtains an identifier indicating a video transmission end command, a destination communication station address, a plug ID required to end the video transmission, and the like.
- Notify 2 109 The communication station control unit 210 recognizes the identifier indicating the video transmission end command, the address of the destination communication station, and the meaning of the command from the destination communication station address.
- the transmission of the wireless signal including the video signal is stopped. Then, a notice is sent to the user to release the band reserved for the video whose transmission has been stopped.
- the user operates the controller a1300 to the device a2300 that is transmitting the image before instructing the video transmission to be stopped by the controller A1200. Therefore, an operation indicating the end of use, such as turning off the power, should be performed.However, if the operation is not performed and the end of the video transmission is instructed by the controller A1200, the video transmission should be performed.
- the communication station B2100 may automatically perform an operation such as turning off the power of the device 3230. As a method of realizing this, the communication station B2100 Communication station control unit 211 sends a power-off signal to device a 230 0 to control signal output unit 211 when receiving a wireless signal of video transmission end command. (S186) and other methods are conceivable.
- the power supply OFF signal may be recorded in the remote communication station in advance.
- This power-off signal is received by the control signal input section 2304 of the device a 230, understood by the device control section 2303, and the device control section 2303 is controlled by the device a. Control such as turning off the power of 230
- the communication station control unit 2109 updates the plug information so that another terminal can use the device that has been transmitting the video so that it can be used by another communication station. Make it ready (S188).
- the communication station B2100 reduces power consumption.
- the operation of unnecessary blocks may be stopped and the state may be shifted to the stamp-pay state.
- the power is completely turned off, it becomes impossible to respond to radio signals from other devices, so it is not desirable to shift to the completely power off state. .
- FIG 12 shows an example of the system configuration.
- Devices connected to each communication station The vessel was extracted from the one described in Figure 1.
- Communication station A101, communication station B102 and communication station C103 are connected to the network.
- a display device z105 is connected to the communication station A101 via a plug 101a'10lb.
- Communication station A 101 is operated by controller 104.
- Device c108 is connected to the communication station B 102, through the plug 106a, 106b, 107a, 107b, 108a, 108b.
- Device alO6, device b10 7.
- Device c108 is connected.
- the communication station C 103 is connected to the device d 109 through the plug 109 a, 109 b, 110 a, 110 b, 111 a, and 111 b.
- Device e 110 and device f 111 are connected.
- the communication station A 101 Since the communication station A 101 is on the side that can be operated by the user, the local communication station, the communication station B 102 and the communication station C 103 cannot be directly operated by the user, and are operated via the local communication station. Therefore, it is called a remote communication station.
- the local communication station can communicate with only one of the remote communication stations, and the devices connected to each remote communication station have received the switching command from the low-level communication station.
- the plugs used are switched in a fixed order.
- the switching command is transmitted from the controller operated by the user, transmitted to the remote communication station via the local communication station, and after switching the plug at the remote communication station, transmits the switching command response. .
- the controller 104 not only transmits the switching command (switching request) but also selects the selected content providing station or device (communication station B 102 or device a 106, device b 107, device c 108) can be controlled.
- the operation information may be set in the controller in advance, may be downloaded from each device, or the operation signal is recognized by the content providing station and the content requesting station, and recognized by each device. It may be in a form that can be converted as much as possible.
- the control method of each device by the controller does not specify the present invention.
- the local communication station can transmit the switching command without knowing the status of the remote communication station's devices and their information (such as plug ID).
- the decision as to whether switching is possible is all made by the remote communication station.
- FIG. 13 is a block diagram of the communication station. The required functions are taken out, divided, and put together.
- the oral communication station and the remote communication station can be used in the same configuration.
- the communication unit 201 is a processing unit used for communication with a communication station and a controller. In the present embodiment, communication is performed with the controller and each communication station via the communication unit 201.
- the transmission data creation unit 202 notifies the communication unit 201 of each data and command in a form that can be transmitted by the communication unit 201.
- it corresponds to the radio signal generation unit 1103, the communication station control unit 1104, and in FIG. 2, it corresponds to the radio signal generation unit 210, the communication station control unit 210, and the like.
- the reception data analysis unit 203 determines the type of data notified from the communication unit 201 or the plug unit 204, and notifies the data to each processing unit according to the type of data.
- the processing is specified for each processing unit. In FIG. 1, it corresponds to the radio signal analysis unit 1107 and the communication station control unit 1104, and in FIG. 2, it corresponds to the radio signal analysis unit 2102 and the communication station control unit 2109.
- the plug 204 is a connection port for connecting devices.
- FIG. 1 it corresponds to the video signal output section 1108, and in FIG. 2, it corresponds to the video signal input section 211, video signal input section 211, video signal input section 211, and the like.
- the device setting storage unit 205 stores device settings such as the device setting management table and the selection order management table shown in FIGS. 17 to 22.
- the own station information storage unit 1101, the other station information storage unit 110, and FIG. 2 correspond to the own station information storage unit 210, the other station information storage unit 210, etc. I do.
- the switching command processing unit 206 is instructed by the paging unit 203 when the switching command response “all the Bragg switching completed” is received, and the device setting is performed.
- the remote communication station to communicate with is determined by referring to various tables in the storage unit 205.
- the remote communication station notifies from the reception data analysis unit 203 when the switching command is received.
- the plug to be selected is determined by referring to various tables in the device setting storage unit 205.
- the communication station control unit 1104, and in FIG. It corresponds to part 2 109, etc.
- the plug selection unit 206 switches to the plug determined by the switching command processing unit 206.
- it corresponds to the communication station control unit 1104, and in FIG. 2, it corresponds to the communication station control unit 210.
- the various command processing unit 208 is a processing unit that processes a command other than the switching command. In FIG. 1, it corresponds to the communication control unit 1104, and in FIG. 2, it corresponds to the communication station control unit 210.
- Timer part 209 is used to determine the timeout and the like. This is an unnecessary processing unit in the remote station.
- FIG. 14 shows a flowchart of the local communication station.
- FIG. 15 shows a flowchart of the remote communication station.
- Figure 16 shows the order of data exchange between communication stations.
- Figures 17 to 22 show the management tables of the oral communication station and the remote communication station.
- the respective tables are the device setting management table 601 (Fig. 17) for communication station A101, the selection order management table 602 (Fig. 18), and the device setting management table for communication station B102.
- 603 Fig. 19
- selection order management table 604 Fig. 20
- communication station C103 device setting management table 605
- selection order management table 60 6 FIG. 22
- These tables are stored in the device setting storage unit 205.
- the device setting management table is for managing the plug (plug ID) currently used by the communication station and the communication station (communication station address) communicating with the plug.
- the selection order management table the communication station address Or, it is a table for managing the order (selection order, selection rule) for selecting plug IDs. This table is fixed in the embodiment and the order of selection is ascending. When the user selects one of the plugs 1 to 3, the process ends.
- FIG. 23 and FIG. 24 show examples of schematic views of the controllers 71 1 and 71 2.
- FIG. 1 it corresponds to the controller A1200 and the controller a13000
- FIG. 2 it corresponds to the controller B2200.
- the power button 720 is for controlling the power of a communication station or device that can be controlled by the controller.
- the various selection buttons 703 are used to call up a menu for setting the functions of the display device and the local communication station, and are necessary for selection and determination in the menu.
- the adjustment buttons 704 are buttons for adjusting the volume and the like.
- the channel button 705 is a button for directly selecting a television channel to be displayed on the display device.
- the ascending order switching button 706 is a button for selecting an order in the order management table in ascending order.
- the descending order switching button 707 is a button for selecting the order in the order management table in descending order.
- Each button corresponds to the user input unit 123 in FIG.
- the configuration of the communication station and equipment is the same as the system in Fig. 12.
- the contents of the device setting management table will be abbreviated as (communication station name [selected plug ID, used communication station address]). For example, if the selected plug ID is c at communication station B 102 and the communication station used is A, it is written as (B [c, A]). If there is no station to communicate with and it is cleared, it will be written specially as (B [1,1]).
- Information from the device f connected to the communication station C103 is displayed on the display device z connected to the communication station A101 (S5 ⁇ 1).
- the device setting management table of communication station A 101 is (A [z, C])
- the device setting management table of communication station C 103 is (C [f, A]).
- the switching button is pressed by the controller (S502)
- the communication station A101 transmits a switching command to the communication station C103.
- the communication station C103 that has received the switching command refers to the device setting management table.
- the selected plug ID is f and the communication station address is A, the selected plug ID and the plug ID next to f are selected. Confirm with 06.
- the selection management order table it is known that the plug ID and f are the last, and since the plug of the communication station C 103 cannot be switched any more, a communication stop command is transmitted to the device f. Then, it sends a response “Completion of switching all plugs” to communication station A 101. 'Then, the selected device setting management table is cleared (C [1,-]), and communication with the communication station A101 is cut off (S503).
- the communication station A101 updates the device setting management table (A [z, C]) when receiving the response "all plugs are switched."
- the communication station address used is the communication station C10. Since it is 3, the selection order management table 6 0 Looking at 2, since there is no next to communication station C 103, the address of the first communication station B 102 in the selection order management table 602 is selected, and the device setting management table is updated (A [z, B]). Then, the communication station A 101 again transmits a switching command to the communication station B described in the address of the used communication station (S504).
- the communication station B 102 that has received the switching command refers to the device setting management table.
- the device setting management table is cleared (B [1,1]), so the first plug ID, a in the selection order management table is used as the selection plug ID, and the device setting management table is selected. Rewrite the brag column.
- the address of the communication station A101 of the transmission source of the switching command is used as the address of the communication station to be used. (BC a, A3)
- a plug ID is selected, a command to start communication is sent to the device connected to the plug, and a response "Switch complete" is sent to communication station A101. Yes (S505).
- the switching command is executed by the oral communication station A101 in the device setting management table (ACz, B). Refer to the column of the used communication station address and transmit to the remote communication station B 102.
- the remote communication station B 102 that has received the switching command refers to the device setting management table.
- the device setting management table BCa, A]
- the plug in the next order after the plug ID a is checked with the selection order management tape hole 604. Since you can see that the plug ID in the next order is b, rewrite the selection plug column in the device setting management table, and The selection plug is switched to the container b (B [b, A]) (S507).
- Figure 14 explains the processing flow of the local communication station.
- the local communication station collects communication station information and device information from each communication station (S201) (see the embodiment of the overall operation).
- the device setting management table of the device setting storage unit 205 is set (S202).
- the input command is notified to the reception data analysis unit 203.
- the received data analysis unit 203 determines the contents of the command, and if the received data is a switching command, refers to the device setting management table of the device setting storage unit 205 and creates transmission data.
- the communication unit 201 notifies the communication unit 201 in a form that can be transmitted by the unit 202, and transmits a switching command from the communication unit 201 to the remote communication station used (S206).
- each processing unit After transmission, each processing unit enters a response waiting state (S207). When a response is input to the communication unit 201, it is notified to the received data analysis unit 203.
- Receive data analyzer When a response is input to the communication unit 201, it is notified to the received data analysis unit 203.
- the contents of the response are determined. If the response is “switching complete for all plugs ⁇ ”, (S 209) notifies the switching command processing unit 206. In the switching command processing unit 206, the device setting storage unit 205 Selection order The next communication station to be used is determined with reference to the introduction management template, and the device setting management table is updated (S211). After that, the switching command is created again by the transmission data creation unit 202, and the communication unit 201 sends the switching command to the newly set use communication station and notifies the timer unit 209. . If the received response power is “switch complete” and you need to operate with a different communication setting (bit rate, etc.) from the device used so far, change the communication setting (S2112) . Then, the process returns to waiting for a command input (S203).
- the various command processing unit 208 performs processing corresponding to the command (S205). If the response is an error, it means that the selection of the device at the remote station was not successful, so the same processing as for the timeout is performed.
- the switching command processing unit 206 refers to the selection order management table of the device setting storage unit 205, determines the next communication station to use, and updates the device setting management table (S211). . After that, a switching command is created again by the transmission data creation unit 202, and the communication unit 201 sends the switching command to the newly set communication station to be used (S206). .
- the switching command may be transmitted again to the same communication station.
- FIG. 15 explains the processing flow of the remote station. When it comes up, it waits for a command from the local communication station (S221) D
- the command When a command is input in the communication unit 201, the command is notified to the reception data analysis unit 203 to determine the type of the command. If the command is other than the switching command, it notifies the various command processing sections 208 to perform the processing, and returns to the input waiting state (S223). If the command is a switching command, the switching command processing unit 206 is notified.
- the switching command processing unit 206 refers to the device setting management table and the order management table stored in the device setting storage unit 205 (S224). As a result, if switching of all plugs has been completed (S225), the device setting management table is cleared (S229), the transmission data creation unit 202 is notified, and the response is returned.
- the plug selection unit 2007 specifies to the plug unit 204 that the plug used so far is stopped and the plug of the notified plug ID is operated.
- the plug section 204 transmits a control signal for stopping video transmission (ie, setting the content to an unused state) to a device corresponding to the plug specified to be stopped. .
- Stop video transmission The control signal for turning off the power supply may be a signal for turning off the power or a signal for shifting the device to a standby state. If it is not necessary to turn off the power because the device takes a long time to start up, a control signal that only stops video playback may be sent. By this means, when the user switches the device without stopping the video transmission, the power of the device remains at ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ N even if no one is receiving the video, or the video is not displayed. If you continue to send, you can avoid the situation.
- a control signal for starting video transmission (that is, making the content usable) is transmitted to the device corresponding to the plug instructed to operate.
- the video is automatically transmitted without the need to explicitly perform the operation for starting the video transmission.
- Video can be browsed by simple operations.
- a control signal for starting the video transmission a signal for turning the power ON can be considered.
- For equipment that does not start video transmission just by turning on the power for example, a DVD player, it is possible to transmit a signal to turn on the power and then transmit a signal to start video playback. Conceivable.
- control signals for starting and stopping the video transmission are recorded in advance in the remote communication station in the same manner as described in (4) Description of the video transmission start processing in FIG. It is possible.
- whether the video is transmitted from the device is determined. It is possible to send a control signal to start video transmission or stop video transmission after confirming whether the transmission is complete.
- the same control signal may be used to toggle the operation (turn off when a signal is received when it is on, turn on when a signal is received when it is off). Is particularly effective.
- the following conditions (1) to (3) can be considered as conditions for skipping the plug selection order. It is assumed that information necessary for determining these conditions is stored as plug information.
- Plug 'information indicates that the plug is in use. If the above skip condition is met, skip to the plug selection and inform the user of the fact. It may be configured to notify and wait for the user's response. For example, if the device is not physically connected, it may be possible to transmit the video of the blackjack or display an error message. Furthermore, the transmission data generation unit 202 is notified, a response “switching completion” is generated, and the communication unit 201 transmits the response to the local communication station (S227). If it is necessary to operate with a different communication setting (bit rate, etc.), change the communication setting (S228), and then return to the input waiting state (S221).
- a different communication setting bit rate, etc.
- the remote receiving station selects the plug ID in the next order in the selection order management table.
- the order in which the order management tables are selected does not necessarily have to be in ascending order, and the selection order management table may be selected in descending order.
- the selection order management table 801 in FIG. 25 as an example, if the device setting management table is cleared, select from the last plug ID 801 c in the order management table. Each time a switch command is received, select 8 0 1 b and 8 0 1 a.
- the order management table 803 in FIG. 26 contains selection bit tables for the selected bits 803a, 803b, and 803c.
- the selection order management table is assumed to be fixed, but need not be fixed.
- the selection order may be determined by the user, or may be determined at random (FIG. 27) (802). However, a plug must be included at least once.
- the selection order management table is created based on values that do not change dynamically and are assigned to each device, the selection order between a pair of devices can be kept constant.
- the selection order management table to be referred to when the content selection requesting station transmits the switching command is obtained in advance at the time of the device information collection processing of (3) in FIG. It can be created based on the dress.
- the MAC address is assigned a unique number in the world for each device, and the value does not change.
- the MAC address is a value represented by a 12-digit hexadecimal number. For example, if the MAC address of communication station A is "CBA987654321" (hexadecimal) and the MAC address of communication station B is "DCBA98765432" (hexadecimal), a communication station with a small MAC address value If a selection order management table is always created so that the order is selected first, the communication station A is always selected before the communication station B.
- the selection order is always constant as long as the communication stations included in the selection order management table do not change. Since the MAC address does not change when the power of the communication station is turned off, this effect continues forever.
- the order related to those communication stations changes, but the relative selection of other communication stations is changed. Since the order does not change, the change in the selection order is minimal.
- the content providing station and the device are connected by IEEE1394, create a selection order management table based on the EUI-64 (Extended Unique Identifire, 64 bits) specified by IEEE1394. . Since the EUI-64 is assigned a unique number worldwide for each IEEE1394 device and does not change its value, it can be handled in the same way as the MAC address above. In this case, it is conceivable that the content providing station collects EUI-64 from each device in advance at the time of (1) initial setting processing in FIG. Note that the above can be realized by another value as long as the value does not change fluidly and is uniquely assigned to one device.
- EUI-64 Extended Unique Identifire, 64 bits
- the device setting management table manages one communication station or plug
- a plurality of communication stations and plugs may be managed.
- the table configuration may be such that plug a is used for communication station A and plug b is used for communication station C 103 (FIG. 28) (804).
- devices connected to the same plug can be used by different communication stations.
- Such a configuration may be adopted (FIG. 29) (805).
- the local communication station sends a “connection recovery command” to the communication station currently specified in its own device setting management table.
- the remote communication station that has received the device switching command selects the device specified in the selection order management table as the next order to the device currently specified in the device setting management table, and transmits the content.
- the connection restoration command is received while the device transmission is started, the device itself currently selected in the device setting management table is selected and the content transmission is started.
- the local communication station restores the connection with the content that was received last by the local station, and can receive the same content.
- the communication station or device specified in the entry in the saved device setting management table explicitly left the network and then left the network, or communicated last. If a certain period of time has passed since then, the entry may be deleted.
- the communication station or device specified in the entry in the saved device setting management table explicitly left the network and then left the network, or communicated last. If a certain period of time has passed since then, the entry may be deleted.
- an example has been described in which only one display device z 105 is connected to the local communication station 101 in FIG. 12, but a plurality of display devices may be connected. .
- the selected plug ID and the address of the communication station to be used may be managed as usual.
- the device setting management table (Fig. 19) at the remote communication station in addition to the currently used plug (selected plug ID) and the communication station using the plug (used communication station address), Therefore, the plug ID of the display device using the plug is required.
- Fig. 31 shows the device setting management table for communication station B
- Fig. 32 shows the device setting management table for communication station C.
- display device Z 2 there are, likewise if UNA I are communicating with the device connected to the communication station B b (plug ID b), the device setting management table in the communication station a 3 3, the communication station B
- the device setting management table in Fig. 34 is as shown in Fig. 34.
- the communication station B uses only the communication station address of the transmission source of the switching command to transmit the switching command.
- communication station A When returning the switching command response from communication station B to communication station A, communication station A sends the switching command response to which display device in order to identify which display device the switching command response is for. It is necessary to include information on whether it is a corresponding one.
- a new finolade may be provided in the bucket of the switching command response, and the field may be transmitted including the plug ID of the display device to be the target of the switching command response.
- the selection order management table information for identifying the device itself and the content to be output is transmitted in the switching response for the device that is in the next order after the currently selected device, and the remote control transmits the information.
- a communication station or a display device may be configured to present the information to the user. This allows the user to know what device or content is to be selected next time the switching operation is performed, and it is possible to more easily select a desired device / content. It becomes possible.
- the selection order management table information for identifying the device itself and the content to be output is transmitted in the switching response with respect to the device in the order before the currently selected device, Local communication
- the information may be configured to be presented to the user at a bureau or a display device.
- Means that the device to which the first remote communication station should send the information included in the switching response is the last device in the selection order management table of another second remote communication station.
- a means is provided from the first remote communication station to the second remote communication station for inquiring information for specifying the device itself and the output content, and It is also conceivable that the first remote communication station includes the obtained information in the switching response and transmits it to the remote communication station.
- the communication station or display device may be configured to present the information to the user. This makes it possible for the user to know how many switching operations the user can select the desired device or content, and to more easily select the desired device or content. .
- the first remote communication station When there are a plurality of remote communication stations that can be selected from the local communication station, when the first remote communication station transmits the switching response, the first remote communication station transmits the switching response.
- One remote communication station is provided with a means for inquiring all other remote communication stations of information on a currently selectable device among the connected devices, and the information obtained by the inquiry is transmitted to the first remote communication station. It is also conceivable that the remote communication station 1 is included in the switching response and transmitted to the local communication station.
- connection mode between the controller and the communication station is different from the connection mode between the communication stations
- connection mode between the controller and the communication station and the connection mode between the communication stations May be the same.
- the communication station only needs to support one connection mode, and the effects such as a reduction in manufacturing cost are expected.
- a system in which the communication distance between the oral communication station and the remote communication station is longer than the communication method between the controller and the local communication station is longer.
- the communication between the controller and the local communication station is performed by infrared rays, and the communication between the local communication station and the remote communication station uses wireless communication in the 2.4 GHz band or the 5 GHz band. Therefore, in such a case, if the connection form between the controller and the local communication station and between the oral communication station and the remote communication station are the same, the wireless connection between the controller and the local communication station is also possible. This means that the user can operate the local communication station even from a location away from the oral communication station.
- the local communication station switches the content to be displayed in the local station.
- the local communication station can switch the content transmitted to a communication station other than the local station. May be.
- the local communication station transmits the switching command to the remote communication station, the address of the communication station whose content is to be displayed is displayed. May be included.
- a configuration may be employed in which a communication station other than the local communication station can be directly controlled from the controller.
- the controller and the communication stations are all connected in the same frequency band using the same communication station protocol, direct control of communication stations other than the local communication station can be realized from the controller.
- the controller may be integrated with a communication station, a display device and a device.
- “Input switching” operation is required. This is, for example, an “input switching” operation in the TV, and the user can use this to select a device to be displayed from a plurality of external devices (such as VTR and DVD) connected to the TV.
- external devices such as VTR and DVD
- the user can select the externally connected device and perform the operation from the oral communication station via the remote communication station.
- the operation of selecting the connected device is performed by separate controllers.
- the device switching method of the present invention can also be used in a device in which a display device and a local communication station are integrated (hereinafter, referred to as “integrated device”).
- integrated device a device in which a display device and a local communication station are integrated
- the controller for the integrated device is configured to be able to perform both the switching operation of the externally connected device and the switching operation of the device connected via the remote communication station, the user can use one controller. It is possible to perform both switching operations with just the switch.
- switching operation of the external device and connection via the remote communication station are performed. It is also possible to make it possible to perform the switching operation of the device using only one button of the integrated device controller (hereafter referred to as the “double-purpose switching button”).
- the integrated device performs the following processing.
- a similar configuration as described above can be realized by a configuration in which a control signal for switching the display device can be output from the local communication station.
- the switch button On the controller of the low power communication station, the press of the button is transmitted to the local communication station.
- the local communication station performs the following processing.
- the local communication station determines whether a portable communication station is selected as the externally connected device of the display device or whether it is selected other than that. There is a need. This is because the local communication station obtains in advance information on the number of externally connected devices connected to the display device and the number of the device to which the local station is connected. Judgment is made in the following manner.
- the local communication station first selects its own station by comparing the number of times the control signal for switching to the display device has been output with the information on the number of devices connected to the station. You can see when it will be done. After that, when the control signals for switching are output to the display devices for the number of external devices connected to the display device, it is understood that the own station is selected again.
- the local communication station As a method for the local communication station to obtain information on the number of externally connected devices connected to the display device and the number of the device to which the local device is connected, the user must first obtain the information. It is conceivable that the signal is input to the local communication station or that some signal is exchanged between the local communication station and the display device in advance to obtain the signal.
- the display device is a conventional TV. In a low-power communication station, an infrared remote control signal for switching the input of the TV is stored, and the TV signal is stored by the signal. Input switching control may be performed.
- the local communication station has a function for inquiring the display device whether or not the local communication station is currently selected as an externally connected device, the above processing can be realized more easily.
- the switching operation is performed by the controller of the local communication station, the local communication station inquires of the display device whether or not the own station is currently selected as the externally connected device, and the switching is performed.
- the above (processing 1) or (processing 2) may be performed according to the response.
- the display device may output a control signal to the local communication station. Similar things are feasible.
- the communication unit 201 in FIG. 13 may be wireless or wired, and the communication unit 2
- the protocol of 0 1 may be any format.
- radio waves such as 2.4 GHz, 5 GHz and UWB (Ultra Wide Band) may be used as the physical layer, and light such as infrared light may be used.
- analog connection or IEEE 1394 Any digital connection is acceptable.
- the protocol of the MAC layer may be a radio LAN (IEEE 80.2.11) or a configuration having a plurality of communication units 201. . When a plurality of communication units are provided, each communication unit may use a different connection method.
- the order management table is selected with one button in either ascending order or descending order, and the plug ID connected to the remote communication station is selected.
- the switching command processing unit 206 uses the transmission data creation unit 202 to attach information to the switching command to determine whether the order is ascending or descending. Transmitted from the communication unit 2 ⁇ 1, the remote reception station notifies the received data analysis unit 203 of the command received by the communication unit 201, and the received data analysis unit 203 switches the switching command processing unit. Notify 206 ascending or descending order.
- the switching command processing unit 206 may use both the ascending algorithm and the descending algorithm described in the above embodiment as a method of referring to the order management table. The other flow is the same, so the description is omitted. In this way, there are two buttons that can be conveniently switched between ascending and descending order.
- communication station A 110 is a video receiver
- display device 140 is a TV
- communication station B 210 is a video transmitter
- equipment & 230 is a device!
- the device b 2400 is a CS tuner
- the device c 2500 is a hard disk recorder.
- Con preparative roller A 1 2 0 0 a video receiver re Moco down
- the Control This setup roller a 1 3 0 0 and re Moco down the VTR the user can re Moco down the video receiver apparatus (co It is assumed that the user is watching the display device 1400 while operating the controller A 12 00) and the remote controller of the VTR (controller al 300 0).
- the remote controller of the CS tuner and the remote controller of the hard disk recorder are also located near the user, like the remote controller of the VTR (controller a1300).
- the user turns on both the power supplies of the video receiver (communication station A1100) and the video transmitter (communication station B2100) to enable wireless communication between them. Then, turn on the power of the TV (display device 1400).
- This operation may be performed by directly operating the TV (display device 1400) or by using a remote control (not shown) of the TV (display device 1400).
- the user operates the remote control (controller a1300) of the video receiver, and the VTR (device a2300) connected to the video transmitter (communication station B2100).
- This operation is, for example, pressing a switching button on a remote control (controller a130) of the video receiver. The details of the switching process are as described above, and thus will not be described.
- the switching is performed in the order of the VTR (device a 230), the CS tuner (device b 240), and the hard disk recorder (device c 250). Therefore, for example, the VTR (device a 230 0) currently selected and the hard disk recorder (device c 250 0)
- the user wants to select, the user only has to press the switch button twice on the remote control of the video receiver (controller a1300).
- the user After switching to the desired device, the user operates the device itself using the remote control of each device. For example, if the switch to VT R (device a 2 3 0 0), the user performs an operation took the re Moko down of VT R (Con preparative opening la a 1 3 0 0). If you want to play the VTR tape here, press the play button on the VTR's remote control (controller a130). The infrared signal from the remote control is converted to a radio signal by the video receiver (communication station Al100) and transmitted to the video transmitter (communication station B210), and the VTR (device a) 2 3 0 0) is controlled. As a result, the VTR (device a 230
- the image is displayed at 400).
- the user when operating the CS tuner (device b2400), the user operates the CS tuner (device b2400) using the video receiver's remote control (controller A1200). After switching to 0), take the remote control (not shown) of the CS tuner and perform the operation. If you want to turn on the power of the CS tuner, press the power button on the CS tuner remote control (not shown), and if you want to change the channel, press one or more buttons for channel change operation.
- the infrared signal from the remote control is converted to a wireless signal by the video receiver (communication station A110), transmitted to the video transmitter (communication station B210), and transmitted to the CS tuner (device b2). 4 0 0) is controlled.
- changing the channel on the CS tuner (device b 240 0) is equivalent to operating a single button on the remote control (not shown) of the CS tuner. Therefore, if it can be performed (for example, the channel is changed one by one in descending order every time a certain button is pressed), switching the device and changing the channel can be performed by remote control of the video receiver. It is also possible to use only the roller A1200).
- controller A1 the user operates the remote control of the video receiver (controller A1).
- the next device that is, a hard disk recorder (device) After switching all channels in the CS tuner (device b2400) without changing to c2500), changing only the channel in the CS tuner (device & b2400) Use to switch to the hard disk recorder (device c2500) only when the switching operation is performed on the video receiver's remote controller (controller A1200).
- a BS tuner or a terrestrial tuner such as a BS tuner or a terrestrial tuner.
- the user when operating the hard disk recorder (device c 250 0), the user operates the hard disk recorder (device c 2 0) using the video receiver's remote control (controller A 1200). After switching to 500), take the remote control (not shown) of the hard disk recorder and carry out the operation. If you want to turn on the power of the hard disk recorder, press the power button on the remote control (not shown) of the hard disk recorder. ⁇ ⁇ If you want to change the file you want to view, click one or more buttons to change the file. push. The infrared signal from the remote control is converted to a wireless signal by the video receiver (communication station A110), and the image is transmitted to the video transmitter (communication station B210). And the hard disk recorder (device c2500) is controlled.
- the remote control of the video receiver (control The switching to VTR (device a 230 0) may be performed only when the switching operation is performed by the roller A 12 00).
- control The switching to VTR (device a 230 0) may be performed only when the switching operation is performed by the roller A 12 00).
- other devices to which the concept of selecting and viewing one from multiple files can be applied such as a slave station of a system that downloads and views files stored on a server on the Internet. That is feasible.
- the present invention is a content selection method for selecting content from a plurality of communication stations having transmission content, wherein the selection of transmission content is performed without being aware of the difference between communication stations that own the transmission content. May be.
- selection is started in order from the content of a certain communication station, and when there is no unselected content in the communication station, the next The content may be selected in order for the stations.
- the present invention may be configured such that communication stations are selected according to a predetermined order (ascending order).
- the present invention may be configured such that, in the above-described configuration, communication stations are selected in a reverse order (descending order) of a predetermined order.
- a configuration may be such that the next station is selected without selecting the content of the communication station.
- the present invention may be configured such that the content is selected in a predetermined order (ascending order) in the above configuration.
- the present invention may be configured such that, in the above configuration, the selection of the content is performed in an order (descending order) opposite to a predetermined order.
- the present invention is characterized in that when the selected content cannot be normally received due to a bad communication condition or a failure to respond because the selected device is not turned on, etc.
- a configuration may be adopted in which the content in the next order is selected without selecting the content.
- the present invention may be a control device, wherein the content selection using the above-described content selection method may be performed using one function to the control device.
- control buttons correspond to the order of selecting contents in ascending order and descending order, respectively, and the content is selected in ascending order or descending order. You can also configure it to select an option.
- the present invention may be a communication system, wherein the content selection by the content selection method is performed by transmitting a “switch” command to the transmitting station.
- the present invention may be a communication station, and may be configured to perform content selection by the content selection method when receiving the “switch” command having the above configuration.
- the present invention may be configured as a communication station, wherein when receiving the “switch” command having the above configuration, the content is selected by the content selection method.
- a communication path for video transmission and a communication path for control signal transmission are required between the plug unit 204 in Fig. 13 and one device, but these are the same.
- One communication path may be shared, or a plurality of communication paths may be used separately.
- information may be transmitted and received bidirectionally in one communication path, or information may be transmitted only in one direction.
- those connection paths may be wireless connection or wired connection, and the protocol method used is arbitrary.
- video transmission is performed by a wired connection such as an RCA cable, an S cable, and a D terminal cable
- control signal transmission is performed by an infrared remote control signal.
- this may be another connection type.
- Video transmission is an IEEE 1394 Isochronous knot. Transmit and control signal It is conceivable to use the AV "C protocol for transmission.
- connection between communication stations or between communication stations and devices such as radio waves such as 2.4 GHz and 5 GHz as radio physical layers, UWB (Ultra Wide Band), infrared rays, etc. It is conceivable to use light of As the protocol of the MAC layer, it is conceivable to use wireless LAN (IEEE 82.11.1) or the like.
- a plurality of plug units 204 may be provided in one communication station. Furthermore, each of the plugs may use a different connection form.
- the communication with the selected content may not be normally performed due to a bad communication state or a failure to respond because the selected content providing device is not turned on. If it is not possible to communicate with another user, the content may not be selected and the next content may be selected.
- a configuration may be adopted in which the local communication station and the device and the display device are integrated, or a configuration in which the remote communication station, the device and the display device are integrated.
- the oral communication station and the remote communication station may be integrated. Regardless of the configuration, the equipment can be selected in the same way.
- the above-mentioned poor communication condition means that the radio wave intensity from the transmitting station is weaker than a predetermined value, the error rate of the packet received by the receiving station exceeds a certain value, or interference from other devices Points out.
- the software may be stored in an external storage device as appropriate, and read into a storage device such as a RAM (random access memory) by a CPU (Central Processing Unit) of the personal computer.
- a storage device such as a RAM (random access memory) by a CPU (Central Processing Unit) of the personal computer.
- the present invention is also applicable to a network configured using a plurality of content providing stations and a plurality of content requesting stations.
- the content selection request station stores a selection rule of the content providing station.
- the content selection request station receives an input of a content selection request according to an input from an operator, selects one of the content providing stations according to the selection rule, and sends the selected content providing station to the selected content providing station.
- a method of transmitting a content selection request may be used.
- the operator when the operator inputs a content selection request at the content selection requesting station, the content within one content providing station is selected at the content selection requesting station according to the selection rule. Therefore, the operator only needs to know the content desired to be selected, and does not need to check to which station the content desired to be selected belongs. Therefore, even if the contents are distributed to a plurality of stations, desired contents can be easily selected.
- the selection rule of the content providing station in the content selection requesting station is selected first after all the content providing stations to be selected are selected.
- the content providing station may be selected again.
- the first selected content providing station is selected again. Therefore, no matter which content provider is selected first, all content providers can always be selected. Therefore, desired content can be more easily selected.
- the selected content providing station selects the next content according to a predetermined content selection rule if the content to be selected remains, and selects the next content.
- the content may be transmitted to the content selection requesting station, and if there is no remaining content, the effect may be transmitted to the content selection requesting station. If the content remains at a certain content providing station, the content is selected. If not, the content selection requesting station is notified of the fact. Therefore, each content provider You can check all contents in the service station. Therefore, the desired content can be more easily selected.
- the content selection requesting station checks a communication state and a response state with the selected content providing station, and if a communication state of a desired level or higher cannot be obtained, According to the content providing station selection rule, a method of selecting a content providing station to be selected next may be used.
- the content selection requesting station further transmits the content selection request to the next content providing station, skipping the content providing station having poor communication with its own station. Therefore, only the content of the content providing station having a good communication state can be cited as a selection indicator. Therefore, the content can be selected more quickly.
- the content providing station checks a communication status and a response status with the selected content, and selects a content if a communication status higher than a desired level is not obtained. According to the rules, it may be a method of selecting the content to be selected next.
- the content providing station further selects the next content by skipping the content having a poor communication state with the own station. Therefore, only content with good communication status can be cited as a selective catch. Therefore, the content can be selected more quickly.
- the content selection requesting station checks a communication state and a response state with the selected content providing station, and when a communication state of a desired level or higher cannot be obtained, To the operator It may be a method of presenting.
- the content selection requesting station further indicates to the operator that the communication state is poor for a content providing station having a poor communication state with the own station. Therefore, the operator can recognize the presence of a content providing station having a poor communication state. Therefore, necessary measures such as improvement of communication status can be taken promptly.
- the content providing station confirms a communication state and a response state with the selected content, and if a communication state of a desired level or higher cannot be obtained, that effect is notified.
- the content selection requesting station transmits the request to the content selection requesting station, and the content selection requesting station receives the notification and indicates to the operator that the communication state between the selected content providing station and the content cannot be higher than a desired level. May be used.
- the content providing station further transmits, to the content selection requesting station, information indicating that the communication state is poor, for the content having a poor communication state with the own station, and the content selection requesting station operates that fact. To the person. Therefore, the operator can recognize the presence of the content with poor communication status. Therefore, necessary measures such as improvement of communication status can be taken promptly.
- the radio wave intensity or the response status or the communication error rate is lower than the desired level. Rere 0 good even if it is
- the desired content can be more easily selected.
- the content selection method if the communication state of the desired level or higher cannot be obtained, the power of the partner station is not turned on or the distance to the partner station is increased. According to the above configuration, if the communication state of the desired level or higher cannot be obtained, the power of the partner station is not turned on or the partner station is not connected. There was no response because the distance was too long. Therefore, it is possible to select a content providing station only for a powered-on one. Therefore, it is possible to more easily select a desired content. Furthermore, in the content selection method according to the present invention, the content selection requesting station may be more than a desired level between the content providing station and the selected content providing station.
- the communication status is not obtained, when the operator is notified that communication is possible, the communication is possible but the signal strength or response status or the communication error rate is less than the desired level.
- the power of the partner station may not be turned on, or there may be no response because the distance to the partner station has been increased, and a method of presenting to the operator with a distinction of may be used.
- the content selection requesting station is configured to, when a communication state equal to or higher than a desired level cannot be obtained between the selected content providing station and the content, to that effect.
- a communication state equal to or higher than a desired level cannot be obtained between the selected content providing station and the content, to that effect.
- the content selection method transmits a content switching instruction to a content selection requesting station based on an input from an operator, and the content selection requesting station having received the content switching instruction transmits the content switching instruction to the content selection requesting station.
- a method of transmitting an on-switching instruction to the content providing station may be used.
- the content selection requesting station is a content selection requesting station that selects a desired content from among the content possessed by a plurality of content providing stations, and the content selection requesting station according to the above content selection method.
- a selection request may be transmitted.
- the content selection request is transmitted to the content providing station, and the content of the content providing station is received one by one from the content providing station. Therefore, the operator can select the desired content. You only need to know what it is, and you do not need to find out which station the content you want to select belongs to. Therefore, desired contents can be easily selected even if the contents are distributed to a plurality of stations.
- the content providing station is a content providing station that is selected from the content selection requesting station and transmits the content of its own content to the content selection requesting station, according to the above content selection method. It may receive the content selection request from the content selection requesting station.
- the content is selected from the content selection requesting station, the content is selected one by one from the contents of the own station, and the content is transmitted to the content selection requesting station. Therefore, the operator only needs to know what content he / she wants to select, and does not need to find out which station the content he / she wants to select belongs to. Therefore, the desired content can be easily selected even if the content is distributed to a plurality of stations.
- the content switching instruction device may be used in the content selection method described above, and may transmit a content switching instruction from an operator to a content selection requesting station.
- the operator only needs to always perform the same operation and always send the same instruction to the content selection request station, and the content provider station still has the content provider station.
- Each station determines whether or not it is available, and if there are no remaining stations, it can be switched to the next station or content. Therefore, the operator presses the same button, turns the same dial in the same direction, It is only necessary to always perform the same operation, such as turning, and it is not necessary to take steps such as performing an operation for selecting a station once each time a content provider changes and then returning to the operation for selecting content. Therefore, the desired content can be selected more easily.
- the content selection method of the present invention is a content selection method in which a desired content is selected from each content held by a plurality of content providing stations from the content selection requesting station.
- the order for selection is stored.
- the content providing station stores the order for selecting the content possessed by the own station, and the content selection requesting station inputs the content selection request according to the input from the operator. And transmits a content selection request to one of the content providing stations in accordance with the station selection order.
- the content providing station Upon receiving the content selection request, the content providing station should select the content in accordance with the content selection order.
- next content remains, select the next content and select the content Send to the content selection request station, and if there is no content to be selected, send a message to that effect to the content selection request station, and the top 15 content selection request stations leave the content to be selected from the content provider stations If it is not received, a content selection request is sent to the next content providing station if there is a next content providing station in accordance with the selection order of the above stations, otherwise a content selection request is sent to the first content providing station. It can be configured to do so.
- the content in one content providing station is sequentially selected, and if no content remains, the next content providing station is selected.
- the selection is switched one after another, such as selecting a service station. Therefore, the operator only needs to know what content he / she wants to select, and does not need to find out to which station the content he / she wants to select belongs. Therefore, desired contents can be easily selected even if the contents are distributed to a plurality of stations.
- the content selection requesting station determines whether the communication state between the selected content providing station and the own station is good, and if the communication state is poor, the content A content selection request can be transmitted to the next content provider without selecting the content provider.
- the content selection requesting station transmits a content selection request to the next content providing station by skipping the content providing station when the communication state with its own station is bad. Therefore, only the content of the content providing station having a good communication state can be listed as a selection candidate. Therefore, in addition to the effect of the above configuration, it is possible to more quickly select the content.
- the content selection method according to the present invention further comprises: The communication state between the content providing station and the own station can be determined, and if the communication state is poor, it can be configured to be presented to the operator.
- the content selection requesting station presents to the operator that the content providing station having a poor communication state with its own station has a bad communication state. Therefore, the operator can recognize the presence of a content providing station having a poor communication state. Therefore, in addition to the effect of the above configuration, Necessary measures such as improvement of the condition can be taken promptly.
- the content providing station determines whether the communication status between the selected content and the own station is good or not, and if the communication status is poor, the content is determined. It can be configured to select the next content without making the selection.
- the content providing station selects the next content by skipping the content in a bad communication state with the own station. Therefore, only contents with good communication status can be listed as selection candidates. Therefore, in addition to the effect of the configuration described above, the content can be selected more quickly.
- the content providing station determines whether the communication status between the selected content and the own station is good or not, and if not, selects the content.
- the content selection requesting station may be configured to transmit the request to the requesting station and, when receiving the notification that the communication state between the selected content providing station and the content is poor, present the fact to the operator.
- the content providing station transmits, to the content selection requesting station, information indicating that the communication state is poor for the content having a poor communication state with the own station, and the content selection requesting station notifies the operator of the fact that the communication state is bad. To present. Therefore, the operator can recognize the presence of the content having a poor communication state. Therefore, in addition to the effects of the above configuration, necessary measures such as improvement of the communication state can be promptly taken.
- the content selection method of the present invention provides a content switching instruction based on an input from an operator in response to a content selection request.
- the content selection requesting station which has transmitted to the station and received the content switching instruction, can be configured to transmit the content switching instruction to the content providing station.
- the operator only needs to always perform the same operation and always send the same instruction to the content selection requesting station, and the content providing station whose content still remains in the content providing station is not yet available.
- Each station determines whether or not it remains, and if not, it switches to the next station or content. Therefore, the operator only has to perform the same operation at all times, such as pressing the same button or turning the same dial in the same direction. There is no need to take steps such as returning to the selection operation. Therefore, in addition to the effects of the above configuration, desired content can be selected more easily.
- the content switching instruction device of the present invention is used in the content selection method described above, and can be configured to transmit a content switching instruction from an operator to a content selection request station.
- the operator only needs to always perform the same operation and always send the same instruction to the content selection requesting station, and the content providing station whose content is still left in the content providing station is still in operation.
- Each station determines whether or not it remains, and if not, it switches to the next station or content. Therefore, the operator need only always perform the same operation, such as pressing the same button or turning the same dial in the same direction.
- the operator performs the operation for selecting the station and then performs the operation for selecting the station. Also, there is no need to take steps such as returning to the content selection operation. Therefore, in the above configuration In addition to the effect, the desired content can be selected more easily.
- the content selection system of the present invention is a content selection system for selecting a desired content from each content of a plurality of content providing stations from a content selection requesting station. It can be configured so that the content of the content providing station is selected by the requesting station.
- the content selection requesting station transmits a content selection request to the content providing station.
- the content providing station selects one content from each of the contents of the content providing station and transmits the content to the content selection requesting station.
- the content selection requesting station receives all the contents of the content providing station from the content providing station. Therefore, the operator only needs to know the content to be selected, and does not need to check to which station the content to be selected belongs. Therefore, desired contents can be easily selected even if the contents are distributed to a plurality of stations.
- a content selection request is transmitted to the content providing station, and the content of the content provided by the content providing station is provided one by one. Receive from the service provider. Therefore, the operator only needs to know what content he / she wants to select, and does not need to find out to which station the content to be selected belongs. Therefore, desired contents can be easily selected even if the contents are distributed to a plurality of stations.
- the content providing station of the present invention is a content providing station that is selected from the content selection requesting station and transmits the content of its own content to the content selection requesting station. It can be configured to receive a content selection request from a station.
- the content is selected from the content selection requesting station, and one content is selected from each of the contents of the own station, and the content is transmitted to the content selection requesting station. Therefore, the operator only needs to know what content the user wants to select, and does not need to check to which station the content desired to be selected belongs. Therefore, the desired content can be easily selected even if the content is distributed to a plurality of stations.
- the program of the present invention causes a computer to realize any of the above.
- a computer-readable recording medium on which the program of the present invention is recorded makes a computer realize any of the above.
- the network system of the present invention can be configured by using any one of the above-mentioned content providing stations, content selection requesting stations, and content selection methods. Further, the network system of the present invention can be configured to have a plurality of the content selection requesting stations and the content providing stations, respectively, and to be configured by using any one of the content selection methods described above. .
- the operator only needs to know what the desired content is, and does not need to check to which station the content desired belongs. Therefore, even if the content is distributed and arranged in a plurality of stations, a desired content can be easily selected.
- the content selection method includes, for example, placing a communication device in a room where a video recording / reproducing device such as a video tape deck or a DVD player is placed and a room where an operator is located, and recording a video to be remotely controlled
- a video recording / reproducing device such as a video tape deck or a DVD player
- This is a method in which a desired video recording / reproducing device can be easily selected even when the reproducing devices are dispersedly arranged in a plurality of stations. Therefore, for example, while in a room with a TV receiver but no DVD player, operate the DVD player in another room by communication and project the image on the TV receiver in the original room be able to.
- the present invention provides a plurality of images. It is suitable for an AV system equipped with a recording / reproducing device, particularly for a network system for wirelessly transmitting video.
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Databases & Information Systems (AREA)
- Human Computer Interaction (AREA)
- Mobile Radio Communication Systems (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
- Television Signal Processing For Recording (AREA)
- Small-Scale Networks (AREA)
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2003227353A AU2003227353A1 (en) | 2002-04-23 | 2003-04-22 | Content selection method, content selection requesting station, content providing station, content switching indication apparatus, program, computer-readable recording medium on which program is recorded, and network system |
JP2004500494A JP3980594B2 (ja) | 2002-04-23 | 2003-04-22 | コンテンツ選択方法、コンテンツ選択要求局、コンテンツ提供局、コンテンツ切り替え指示器、プログラム、プログラムを記録したコンピュータ読み取り可能な記録媒体、ネットワークシステム |
US10/512,052 US20050183115A1 (en) | 2002-04-23 | 2003-04-22 | Content selection method, content selection requesting station, content providing station, content switching indication apparatus, program, computer-readable recording medium on which program is recorded, and network system |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2002-121502 | 2002-04-23 | ||
JP2002121502 | 2002-04-23 | ||
JP2002338471 | 2002-11-21 | ||
JP2002-338471 | 2002-11-21 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2003092269A1 true WO2003092269A1 (fr) | 2003-11-06 |
Family
ID=29272330
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2003/005090 WO2003092269A1 (fr) | 2002-04-23 | 2003-04-22 | Procede et station de demande de selection de contenu, station de fourniture de contenu, appareil d'indication de commutation de contenu, programme, support d'enregistrement lisible par ordinateur sur lequel un programme est enregistre, et systeme de reseau |
Country Status (4)
Country | Link |
---|---|
US (1) | US20050183115A1 (ja) |
JP (3) | JP3980594B2 (ja) |
AU (1) | AU2003227353A1 (ja) |
WO (1) | WO2003092269A1 (ja) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7711827B2 (en) | 2004-12-14 | 2010-05-04 | Nec Infrontia Corporation | Communication system, communication server and communication method |
US8042152B2 (en) | 2005-03-25 | 2011-10-18 | Funai Electric Co., Ltd. | Home network system |
JP2013118672A (ja) * | 2013-01-24 | 2013-06-13 | Toshiba Corp | 情報処理装置および出力切替制御方法 |
JP2013229842A (ja) * | 2012-03-30 | 2013-11-07 | Inaba Denki Sangyo Co Ltd | 音響システム |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2005533430A (ja) * | 2002-07-17 | 2005-11-04 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | 複数のユーザが同時使用する電子番組表を備えた受信機 |
KR20060070274A (ko) * | 2004-12-20 | 2006-06-23 | 주식회사 현대오토넷 | 텔레매틱스시스템을 이용한 화상통화시스템 및 방법 |
FR2893805B1 (fr) * | 2005-11-24 | 2008-10-31 | Archos Sa | Procede et systeme pour enregistrer un media depuis une "set top box" vers un lecteur enregistreur multimedia portable |
JP4811017B2 (ja) * | 2005-12-27 | 2011-11-09 | パナソニック株式会社 | 映像音声システム、制御装置、出力装置、およびプログラム |
JP4682052B2 (ja) * | 2006-02-10 | 2011-05-11 | キヤノン株式会社 | 通信装置、通信方法、通信装置の制御方法並びに通信システム |
US20070244985A1 (en) * | 2006-04-13 | 2007-10-18 | Concert Technology Corporation | User system providing previews of a user's media collection to an associated portable media player |
US20070245377A1 (en) * | 2006-04-13 | 2007-10-18 | Concert Technology Corporation | Central system providing previews to a portable media player |
US8316081B2 (en) * | 2006-04-13 | 2012-11-20 | Domingo Enterprises, Llc | Portable media player enabled to obtain previews of a user's media collection |
US7603434B2 (en) * | 2006-04-13 | 2009-10-13 | Domingo Enterprises, Llc | Central system providing previews of a user's media collection to a portable media player |
US20070245378A1 (en) * | 2006-04-13 | 2007-10-18 | Concert Technology Corporation | User system providing previews to an associated portable media player |
JP4886463B2 (ja) | 2006-10-20 | 2012-02-29 | キヤノン株式会社 | 通信パラメータ設定方法、通信装置及び通信パラメータを管理する管理装置 |
US9667918B2 (en) * | 2009-02-20 | 2017-05-30 | At&T Intellectual Property I, L.P. | Network recording system |
US9634821B2 (en) * | 2009-04-14 | 2017-04-25 | Lg Electronics Inc. | Method and apparatus for channel access in WLAN system |
JP5520958B2 (ja) * | 2009-10-01 | 2014-06-11 | パナソニック株式会社 | 無線通信システム、映像装置用アダプタ装置、映像装置、および、無線通信システムの制御方法 |
US8713616B2 (en) * | 2009-10-26 | 2014-04-29 | Lg Electronics Inc. | Digital broadcasting system and method of processing data in digital broadcasting system |
TWI427967B (zh) * | 2010-05-19 | 2014-02-21 | Pegatron Corp | 無線影像傳輸裝置及其資料傳輸方法 |
US9749813B2 (en) * | 2012-12-17 | 2017-08-29 | Radius Networks, Inc. | System and method for associating a MAC address of a wireless station with personal identifying information of a user of the wireless station |
CN109802994B (zh) * | 2018-12-13 | 2022-03-01 | 平安科技(深圳)有限公司 | 一种基于内容分发网络的消息推送方法及系统 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000134502A (ja) * | 1998-10-26 | 2000-05-12 | Matsushita Electric Ind Co Ltd | 音声映像配信装置 |
JP2001145179A (ja) * | 1999-11-12 | 2001-05-25 | Matsushita Electric Ind Co Ltd | バス接続機器のリモコン制御システム及びプログラム記録媒体 |
JP2001313891A (ja) * | 2000-04-28 | 2001-11-09 | Toshiba Corp | コンテンツ管理装置 |
JP2002032282A (ja) * | 2000-05-11 | 2002-01-31 | Fujitsu Ltd | ネット上におけるコンテンツ配信システム、配信方法およびそのプログラム製品 |
JP2002112367A (ja) * | 2000-09-29 | 2002-04-12 | Canon Inc | 情報処理システム、および、情報処理方法 |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3158364B2 (ja) * | 1992-10-13 | 2001-04-23 | ソニー株式会社 | 電子機器 |
JP3307085B2 (ja) * | 1993-12-10 | 2002-07-24 | ソニー株式会社 | 通信方法及び電子機器 |
US6181867B1 (en) * | 1995-06-07 | 2001-01-30 | Intervu, Inc. | Video storage and retrieval system |
JP2000253463A (ja) * | 1999-02-26 | 2000-09-14 | Matsushita Electric Ind Co Ltd | ネットワーク制御システム及びこのネットワーク制御システムに用いるターゲット、コントローラ、並びにコンシューマ |
JP2001045030A (ja) * | 1999-07-29 | 2001-02-16 | Nec Corp | 接続制御装置 |
JP2001238275A (ja) * | 2000-02-23 | 2001-08-31 | Sanyo Electric Co Ltd | 複数機器の集中制御システム |
US20020156552A1 (en) * | 2001-02-13 | 2002-10-24 | Jon Whiting | System and method for media file statistics and reporting |
JP2002354351A (ja) * | 2001-05-24 | 2002-12-06 | Toshiba Corp | 外部機器制御装置および外部機器制御方法 |
JP4037630B2 (ja) * | 2001-09-06 | 2008-01-23 | 株式会社東芝 | デジタルav装置及びその制御方法 |
JP3972288B2 (ja) * | 2001-10-11 | 2007-09-05 | ソニー株式会社 | 信号処理システム、信号出力装置、信号入力装置及び通信制御方法 |
US20030174648A1 (en) * | 2001-10-17 | 2003-09-18 | Mea Wang | Content delivery network by-pass system |
US20030105763A1 (en) * | 2001-11-30 | 2003-06-05 | Gemini Networks, Inc. | System, method, and computer program product for providing a wholesale provisioning service |
US20050114445A1 (en) * | 2002-07-25 | 2005-05-26 | Kenneth Tracton | Dynamic content customization in a clientserver environment |
-
2003
- 2003-04-22 WO PCT/JP2003/005090 patent/WO2003092269A1/ja active Application Filing
- 2003-04-22 AU AU2003227353A patent/AU2003227353A1/en not_active Abandoned
- 2003-04-22 JP JP2004500494A patent/JP3980594B2/ja not_active Expired - Fee Related
- 2003-04-22 US US10/512,052 patent/US20050183115A1/en not_active Abandoned
-
2010
- 2010-12-13 JP JP2010277338A patent/JP2011055555A/ja active Pending
-
2011
- 2011-10-24 JP JP2011233323A patent/JP5512630B2/ja not_active Expired - Lifetime
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000134502A (ja) * | 1998-10-26 | 2000-05-12 | Matsushita Electric Ind Co Ltd | 音声映像配信装置 |
JP2001145179A (ja) * | 1999-11-12 | 2001-05-25 | Matsushita Electric Ind Co Ltd | バス接続機器のリモコン制御システム及びプログラム記録媒体 |
JP2001313891A (ja) * | 2000-04-28 | 2001-11-09 | Toshiba Corp | コンテンツ管理装置 |
JP2002032282A (ja) * | 2000-05-11 | 2002-01-31 | Fujitsu Ltd | ネット上におけるコンテンツ配信システム、配信方法およびそのプログラム製品 |
JP2002112367A (ja) * | 2000-09-29 | 2002-04-12 | Canon Inc | 情報処理システム、および、情報処理方法 |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7711827B2 (en) | 2004-12-14 | 2010-05-04 | Nec Infrontia Corporation | Communication system, communication server and communication method |
US8042152B2 (en) | 2005-03-25 | 2011-10-18 | Funai Electric Co., Ltd. | Home network system |
JP2013229842A (ja) * | 2012-03-30 | 2013-11-07 | Inaba Denki Sangyo Co Ltd | 音響システム |
JP2013118672A (ja) * | 2013-01-24 | 2013-06-13 | Toshiba Corp | 情報処理装置および出力切替制御方法 |
Also Published As
Publication number | Publication date |
---|---|
JP5512630B2 (ja) | 2014-06-04 |
AU2003227353A1 (en) | 2003-11-10 |
JP2012029329A (ja) | 2012-02-09 |
US20050183115A1 (en) | 2005-08-18 |
JP3980594B2 (ja) | 2007-09-26 |
JP2011055555A (ja) | 2011-03-17 |
JPWO2003092269A1 (ja) | 2005-09-08 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP5512630B2 (ja) | 制御機器、制御方法、制御プログラムおよびシステム | |
US10278058B2 (en) | Wireless communication device information processing device, and communication method | |
US8848106B2 (en) | Communication device, communication system, communication method, control program, and television receiving system | |
KR101121778B1 (ko) | 무선으로 영상기기 주변의 기기를 제어하는 방법 및 장치 | |
US7979553B2 (en) | Electronic device and control method therefor | |
WO2003092265A1 (fr) | Systeme de gestion de commande de dispositif | |
US10841165B2 (en) | Information processing apparatus, and information processing method that change data transmission roles of different devices | |
JP2006501751A (ja) | ホームネットワーク環境における制御装置 | |
JP4125223B2 (ja) | 通信装置及び撮像装置並びにその制御方法及びネットワークシステム | |
JP2009130876A (ja) | 端末連携継続視聴システム、端末、サーバ、方法 | |
JP2004228647A (ja) | 電子機器およびリモートコントローラ | |
JP2009065305A (ja) | 端末連携継続視聴システム、端末、サーバ、方法 | |
US20150030012A1 (en) | Communication device | |
JP2006268618A (ja) | ホームネットワークシステム | |
JP2011019133A (ja) | 無線通信装置、無線通信方法、プログラム、及び集積回路 | |
JP4493443B2 (ja) | ネットワークシステム、管理サーバ、及び端末装置 | |
US7356353B2 (en) | Wireless communication device, wireless communication method, and wireless communication system | |
JP2009147684A (ja) | 番組記録システム | |
JP2007267413A (ja) | コンテンツ選択要求局、コンテンツ提供局、ネットワークシステム | |
KR100698111B1 (ko) | A/v 네트워크 구현 방법 | |
JP2006074385A (ja) | 遠隔録画システム | |
JP2007049231A (ja) | 表示装置 | |
JP2004146983A (ja) | ネットワーク端末及びネットワークシステムの運用方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NI NO NZ OM PH PL PT RO RU SC SD SE SG SK SL TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LU MC NL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG |
|
DFPE | Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101) | ||
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
WWE | Wipo information: entry into national phase |
Ref document number: 2004500494 Country of ref document: JP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 10512052 Country of ref document: US |
|
122 | Ep: pct application non-entry in european phase |