WO2012098950A1 - 情報配信装置及び方法、並びに情報配信システム - Google Patents
情報配信装置及び方法、並びに情報配信システム Download PDFInfo
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- WO2012098950A1 WO2012098950A1 PCT/JP2012/050267 JP2012050267W WO2012098950A1 WO 2012098950 A1 WO2012098950 A1 WO 2012098950A1 JP 2012050267 W JP2012050267 W JP 2012050267W WO 2012098950 A1 WO2012098950 A1 WO 2012098950A1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H60/00—Arrangements for broadcast applications with a direct linking to broadcast information or broadcast space-time; Broadcast-related systems
- H04H60/02—Arrangements for generating broadcast information; Arrangements for generating broadcast-related information with a direct linking to broadcast information or to broadcast space-time; Arrangements for simultaneous generation of broadcast information and broadcast-related information
- H04H60/06—Arrangements for scheduling broadcast services or broadcast-related services
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- 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]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/238—Interfacing the downstream path of the transmission network, e.g. adapting the transmission rate of a video stream to network bandwidth; Processing of multiplex streams
- H04N21/2385—Channel allocation; Bandwidth allocation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0001—Arrangements for dividing the transmission path
- H04L5/0003—Two-dimensional division
- H04L5/0005—Time-frequency
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- 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]
- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/24—Monitoring of processes or resources, e.g. monitoring of server load, available bandwidth, upstream requests
- H04N21/2402—Monitoring of the downstream path of the transmission network, e.g. bandwidth available
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- 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]
- H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client
- H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
- H04N21/647—Control signaling between network components and server or clients; Network processes for video distribution between server and clients, e.g. controlling the quality of the video stream, by dropping packets, protecting content from unauthorised alteration within the network, monitoring of network load, bridging between two different networks, e.g. between IP and wireless
- H04N21/64723—Monitoring of network processes or resources, e.g. monitoring of network load
- H04N21/64738—Monitoring network characteristics, e.g. bandwidth, congestion level
Definitions
- the present invention relates to an information distribution apparatus and method, and an information distribution system, and more particularly to an information distribution apparatus and method and an information distribution system that can improve the efficiency of information distribution.
- a technique called cognitive radio which enables effective use of frequencies by recognizing the radio environment and dynamically switching communication systems and frequencies used by terminal devices and base stations.
- a frequency sharing type system that uses a frequency assigned to an existing radio system in another radio system is being put into practical use.
- a frequency band that is allocated to an existing wireless system but is not used in the area or has a limited use time can be used in another wireless system.
- practical use is being promoted as a technique for utilizing an empty TV broadcast channel, so-called TV white space (see, for example, Non-Patent Document 1).
- Non-Patent Document 1 a database (white space database: WSDB (White Space Data Base)) that registers frequencies and time zones that can be used for each region is installed, and wireless devices (TVBD (TV Band Devices)) are installed. It describes a mechanism for inquiring whether or not the frequency can be used based on the current position.
- WSDB White Space Data Base
- TVBD TV Band Devices
- broadcasting media represented by television broadcasting has a broadcast function as a distribution characteristic. To make the best use of this distribution characteristic, the broadcast data is received simultaneously. It is necessary to maximize the number of terminal devices.
- the present invention has been made in view of such a situation, and makes it possible to improve the efficiency of information distribution.
- An information distribution apparatus includes a content acquisition unit that acquires content to be distributed, and a frequency usage status information acquisition unit that acquires frequency usage status information regarding the usage status of a frequency band for each time zone in each predetermined region. And distribution evaluation means for evaluating the distribution time band for distributing the acquired content, the distribution frequency band used for the distribution based on the acquired frequency usage status information, and a plurality of terminal devices in the region On the other hand, the distribution information notification means for notifying the distribution information of the content distributed using the distribution frequency band in the distribution time zone, and using the distribution frequency band when the distribution time zone is reached Content distribution means for distributing the acquired content to a plurality of terminal devices that are ready for distribution according to the distribution information; Provided.
- the apparatus further comprises evaluation reference information acquisition means for acquiring evaluation reference information serving as a reference when evaluating the distribution time band and the distribution frequency band, and the distribution evaluation means is configured to perform the distribution based on the acquired evaluation reference information.
- the time zone and the distribution frequency band are evaluated.
- the evaluation criterion information highly evaluates the cost of a time zone in which viewing of the content by a larger number of viewers is expected, and highly evaluates the cost of a frequency band in which the distribution bit rate of the content is expected to be higher. Is the standard.
- the evaluation standard information is a standard for highly evaluating the cost of a time zone in which viewing of the content by more viewers is expected.
- the evaluation criterion information is a criterion for highly evaluating the cost of the frequency band where the distribution bit rate of the content is expected to be higher.
- the frequency usage status information acquisition means acquires the frequency usage status information for each region from an information management device that manages the frequency usage status information for each region.
- the information distribution device includes a distribution device and a management device, the distribution device includes the content acquisition unit and the content distribution unit, and the management device includes the frequency usage state information acquisition unit, The distribution evaluation means and the distribution information notification means.
- the information distribution apparatus acquires the content to be distributed, acquires frequency usage status information regarding the usage status of the frequency band for each time zone in each predetermined region, and the acquired frequency Based on the usage status information, the distribution time band for distributing the acquired content and the distribution frequency band used for the distribution are evaluated, and the distribution is performed for the plurality of terminal devices in the region in the distribution time band.
- the distribution information of the content distributed using a frequency band is notified, and when the distribution time period is reached, the acquired content can be distributed according to the distribution information using the distribution frequency band Distributing to a plurality of the terminal devices that are in a different state.
- content to be distributed is acquired, frequency usage status information regarding the usage status of the frequency band for each time zone in each predetermined region is acquired, and based on the acquired frequency usage status information
- the distribution time band for distributing the acquired content and the distribution frequency band used for the distribution are evaluated, and the distribution frequency band is distributed to the plurality of terminal devices in the region using the distribution frequency band.
- the distribution information of the content is notified and the distribution time zone is reached, the acquired content is distributed to a plurality of terminal devices that are ready to be distributed according to the distribution information using the distribution frequency band.
- An information distribution system is an information distribution system including an information distribution device, an information management device, and a plurality of terminal devices, wherein the information distribution device includes content acquisition means for acquiring content to be distributed; Frequency usage status information acquisition means for acquiring the frequency usage status information from the information management device that manages frequency usage status information related to the usage status of the frequency band for each time zone in each predetermined region, and the acquired frequency Based on usage status information, a distribution time zone for distributing the acquired content, a distribution evaluation means for evaluating a distribution frequency band used for the distribution, and the distribution to the plurality of terminal devices in the region Distribution information notifying means for notifying distribution information of the content distributed using the distribution frequency band in a time zone; Each of the terminal devices controls to control the content distributed using the distribution frequency band to be receivable in the distribution time zone based on the distribution information notified from the information distribution device.
- the information distribution device further includes a plurality of contents that can be distributed according to the distribution information by using the distribution frequency band when the distribution time period is reached.
- Content distribution means for distributing to the terminal device, and each of the terminal devices further includes reception means for receiving the content distributed from the information distribution device.
- the content to be distributed is acquired by the information distribution device, and the information management device manages the frequency usage status information regarding the usage status of the frequency band for each time zone in each predetermined region, Frequency usage status information is acquired, and based on the acquired frequency usage status information, the distribution time zone for distributing the acquired content and the distribution frequency band used for the distribution are evaluated, and for a plurality of terminal devices in the region
- the distribution information of the content distributed using the distribution frequency band in the distribution time zone is notified, and the distribution frequency band is used based on the distribution information notified from the information distribution device by each terminal device.
- the content to be distributed is controlled so that it can be received in the distribution time zone.
- the acquired content is distributed to a plurality of terminal devices that are ready for distribution according to the distribution information using the distribution frequency band, and further distributed from the information distribution device by each of the terminal devices.
- Content is received.
- the efficiency of information distribution can be improved.
- FIG. 1 It is a figure which shows the structure of one Embodiment of the content delivery system of this invention. It is a figure which shows the structural example of a broadcast server. It is a figure which shows the structural example of a broadcast resource management server. It is a figure which shows the structural example of WSDB. It is a figure which shows the structural example of TVBD. It is a flowchart which shows a content delivery process. It is a flowchart which shows a content delivery process. It is a flowchart which shows the detail of a delivery evaluation process. It is a figure which shows the identification method of a common empty block. It is a figure which shows the evaluation method (setting time low cost) of a cost evaluation graph.
- FIG. 1 is a diagram showing a configuration of an embodiment of a content distribution system of the present invention.
- the content distribution system 1 includes a broadcast server 11, a broadcast resource management server 12, WSDBs 21-1 to 21-N, and TVBDs 31-1 to 31-M.
- the broadcast server 11 is a dedicated server that distributes content.
- the broadcast server 11 is arranged in the facility of the service provider 3.
- the service provider 3 is a company that provides a distribution service for content such as television programs and movies.
- the broadcast server 11 acquires the content to be distributed, and requests the broadcast resource management server 12 for the distribution schedule of the content.
- the broadcast resource management server 12 is a dedicated server that manages content distribution.
- the broadcast resource management server 12 is arranged in the facility of the service provider 3.
- the broadcast server 11 and the broadcast resource management server 12 are arranged in the same facility, for example, and exchange various data by wired or wireless communication using a predetermined communication method.
- the broadcast resource management server 12 inquires the WSDB 21-1 to 21-N about the usage status of the frequency band for each time zone via the transmission path 2.
- WSDB 21-1 to 21-N (N: 1, 2, 3,..., N) is a white space for information on frequency usage status in each region (hereinafter referred to as frequency usage status information). It is a dedicated server managed by a database (WSDB: White : Space Data Base). The WSDBs 21-1 to 21-N are arranged in the network provider 4 facility.
- the network provider 4 is an operator that provides frequency usage status information.
- the WSDBs 21-1 to 21 -N notify the broadcast resource management server 12 of the frequency usage status information via the transmission path 2 in response to an inquiry from the broadcast resource management server 12.
- the broadcast resource management server 12 determines a content distribution schedule based on the frequency usage status information notified from the WSDBs 21-1 to 21-N, and notifies the broadcast server 11 of the content distribution schedule. Also, the broadcast resource management server 12 notifies the TVBDs 31-1 to 31-M of the content distribution schedule via the transmission path 2.
- the broadcast server 11 broadcasts content to the TVBDs 31-1 to 31-M via the transmission path 2 based on the delivery schedule notified from the broadcast resource management server 12.
- the TVBDs 31-1 to 31-M execute reproduction or accumulation of distributed content called TV band devices (TVBD: TV Band Devices). It is a terminal device.
- the TVBDs 31-1 to 31-M are used, for example, by being possessed by the user or disposed in each user's home.
- the TVBDs 31-1 to 31-M are ready to receive content based on the distribution schedule notified from the broadcast resource management server 12, and are ready to receive the content.
- the TVBDs 31-1 to 31-M receive the content and reproduce or store it.
- the content distribution system 1 shown in FIG. 1 is configured as described above.
- WSDB 21-1 to 21-N will be referred to as WSDB 21 unless it is particularly necessary to distinguish them.
- TVBDs 31-1 to 31-M will be referred to as TVBDs 31 when there is no particular need to distinguish them.
- FIG. 2 is a diagram illustrating a configuration example of the broadcast server 11 of FIG.
- the broadcast server 11 includes a control unit 110, a content acquisition unit 111, a communication unit 112, and a content distribution unit 113.
- the control unit 110 controls the operation of each unit of the broadcast server 11.
- the content acquisition unit 111 acquires content to be broadcasted to the TVBD 31, and supplies the content to the control unit 110.
- control unit 110 supplies a request for a distribution schedule for the content to the communication unit 112.
- the communication unit 112 transmits a distribution schedule request supplied from the control unit 110 to the broadcast resource management server 12.
- the communication unit 112 receives the distribution schedule transmitted from the broadcast resource management server 12 in response to the distribution schedule request, and supplies it to the control unit 110.
- the control unit 110 executes distribution processing scheduling based on the distribution schedule supplied from the communication unit 112.
- the control unit 110 supplies the content acquired by the content acquisition unit 111 to the content distribution unit 113 when it is time to distribute the content.
- the content distribution unit 113 broadcasts the content supplied from the control unit 110 to the TVBDs 31-1 to 31-M via the transmission path 2 using a frequency band for distributing the content.
- the broadcast server 11 is configured.
- FIG. 3 is a diagram illustrating a configuration example of the broadcast resource management server 12 of FIG.
- the broadcast resource management server 12 includes a control unit 120, a communication unit 121, a distribution evaluation unit 122, a WSDB inquiry unit 123, a frequency usage status information acquisition unit 124, an evaluation criterion information acquisition unit 125, a distribution schedule generation unit 126, and a distribution schedule notification. Part 127.
- the control unit 120 controls the operation of each unit of the broadcast resource management server 12.
- the communication unit 121 receives a distribution schedule request transmitted from the broadcast server 11 and supplies it to the distribution evaluation unit 122.
- the delivery evaluation unit 122 instructs the WSDB query unit 123 to query the WSDB 21.
- the WSDB inquiry unit 123 inquires of the WSDB 21-1 to 21-N about the frequency usage status information via the transmission path 2 in accordance with the instruction from the distribution evaluation unit 122. In response to the inquiry, the WSDB inquiry unit 123 supplies the frequency usage status information notified from each of the WSDBs 21-1 to 21-N to the frequency usage status information acquisition unit 124.
- the frequency usage status information acquisition unit 124 acquires the frequency usage status information supplied from the WSDB inquiry unit 123 and supplies the frequency usage status information to the distribution evaluation unit 122.
- the evaluation criterion information acquisition unit 125 acquires the evaluation criterion information and supplies it to the distribution evaluation unit 122. *
- the evaluation reference information is information that becomes a reference for evaluation when the distribution evaluation unit 122 executes the distribution evaluation process.
- the evaluation reference information may be held by the broadcast resource management server 12 or may be acquired simultaneously with the content to be distributed.
- the distribution evaluation unit 122 is supplied with the frequency usage status information from the frequency usage status information acquisition unit 124 and the evaluation standard information from the evaluation standard information acquisition unit 125.
- the distribution evaluation unit 122 is based on the frequency usage status information and the evaluation reference information, and distributes the content requested for the distribution schedule (hereinafter referred to as distribution time period) and the frequency band (hereinafter referred to as the frequency band) used for the distribution. , A distribution evaluation process for evaluating the distribution frequency band).
- the distribution evaluation unit 122 supplies the result of distribution evaluation obtained by the distribution evaluation process to the WSDB inquiry unit 123 and the distribution schedule generation unit 126.
- the WSDB inquiry unit 123 stores information for reserving the distribution time band and the distribution frequency band as reserved blocks via the transmission line 2 through the WSDB 21-1 to WSDB 21-1 21-N is notified. In addition, when the content distribution is completed, the WSDB inquiry unit 123 notifies the WSDB 21-1 to 21-N via the transmission path 2 of information for releasing the reserved block.
- the distribution schedule generation unit 126 generates a distribution schedule based on the result of distribution evaluation supplied from the distribution evaluation unit 122 and supplies the distribution schedule to the communication unit 121 and the distribution schedule notification unit 127.
- the communication unit 121 transmits the distribution schedule supplied from the distribution schedule generation unit 126 to the broadcast server 11.
- the distribution schedule notification unit 127 notifies the TVBDs 31-1 to 31-M of the distribution schedule supplied from the distribution schedule generation unit 126 via the transmission path 2.
- the broadcast resource management server 12 is configured.
- FIG. 4 is a diagram illustrating a configuration example of the WSDB 21 of FIG.
- the WSDB 21 includes a control unit 210, a communication unit 211, a DB management unit 212, and a WSDB 213.
- the control unit 210 controls the operation of each unit of the WSDB 21.
- the control unit 210 controls the communication unit 211 and the DB management unit 212 to collect information on frequencies and time zones that can be used in a predetermined area under management, and registers the information in a WSDB (White Space Data Base) 213 Let
- the communication unit 211 receives an inquiry about the frequency usage status information notified from the broadcast resource management server 12 via the transmission path 2 and supplies it to the DB management unit 212.
- the DB management unit 212 refers to the WSDB 213 in response to the inquiry supplied from the communication unit 211 and acquires the frequency usage status information.
- the DB management unit 212 supplies the frequency usage status information to the communication unit 211.
- the communication unit 211 notifies the broadcast resource management server 12 of the frequency usage status information supplied from the DB management unit 212 via the transmission path 2.
- the communication unit 211 supplies the notification to the DB management unit 212.
- the DB management unit 212 In response to the notification supplied from the communication unit 211, the DB management unit 212 refers to the WSDB 213 to register a reserved block or execute a process of releasing a reserved block.
- the WSDB 21 is configured.
- FIG. 5 is a diagram illustrating a configuration example of the TVBD 31 in FIG.
- the TVBD 31 includes a control unit 310, a communication unit 311, a display unit 312, an input unit 313, a reproduction unit 314, a storage unit 315, and a preference information acquisition unit 316.
- the control unit 310 controls the operation of each unit of the TVBD 31.
- the communication unit 311 receives the distribution schedule notified from the broadcast resource management server 12 via the transmission path 2 and supplies the distribution schedule to the control unit 310.
- the control unit 310 executes scheduling of reception processing based on the distribution schedule supplied from the communication unit 311.
- the control unit 310 displays the scheduling result on the display unit 312.
- the control unit 310 selects a desired content from the content scheduled to be distributed based on the operation signal from the input unit 313. In addition, the control unit 310 selects desired content based on the preference information acquired by the preference information acquisition unit 316.
- the preference information is, for example, a user's viewing history and the like, and may be held by the TVBD 31 itself, or may be acquired from an external device before a desired content selection process is executed. Good.
- the control unit 310 activates the TVBD 31 to control the desired content so that it can be received immediately before the distribution time of the desired content.
- the communication unit 311 receives content broadcast from the broadcast server 11 via the transmission path 2 and supplies the content to the control unit 310.
- the control unit 310 When playing back the content supplied from the communication unit 311, the control unit 310 supplies the content to the playback unit 314. In this case, the playback unit 314 plays back the content supplied from the control unit 310 in real time and causes the display unit 312 to display the content. In addition, when storing the content supplied from the communication unit 311, the control unit 310 supplies the content to the storage unit 315 and stores it. In this case, the accumulated content is reproduced by the reproduction unit 314.
- the TVBD 31 is configured.
- TVBDs 31-1 to 31-M exist in the areas under the control of WSDB 21-1 to 21-3, and the flowcharts of FIGS.
- the TVBD 31-1 and TVBD 31-M will be described as representatives among the TVBDs 31-1 to 31-M.
- the control unit 110 requests the broadcast resource management server 12 for a distribution schedule (step S12).
- the content acquired by the content acquisition unit 111 is provided from a content production company, a broadcasting station, an individual or other content provider via a terminal device or a recording medium.
- the WSDB inquiry unit 123 causes the free blocks in the time zone and the frequency band to be sent to the WSDBs 21-1 to 21-3 via the transmission path 2, respectively.
- An inquiry is made (step S21).
- the DB management unit 212 of the WSDB 21-1 refers to the WSDB 213, identifies an empty block from the usage status of the frequency band for each time zone in the area managed by the WSDB 21-1, and determines the frequency corresponding to the empty block.
- the usage status information is notified to the broadcast resource management server 12.
- an empty block for each region is specified, and the frequency usage status information is notified to the broadcast resource management server 12 (steps S41 and S51).
- the frequency usage status information acquisition unit 124 acquires the frequency usage status information from the WSDBs 21-1 to 21-3 (step S22).
- the distribution evaluation unit 122 executes a distribution evaluation process based on the frequency usage status information acquired by the frequency usage status information acquisition unit 124.
- the distribution evaluation unit 122 acquires the frequency usage status information acquired by the frequency usage status information acquisition unit 124 and the evaluation standard information acquired by the evaluation standard information acquisition unit 125 (steps S101 and S102).
- step S103 the distribution evaluation unit 122 generates a cost evaluation graph weighted by the evaluation reference information based on the acquired frequency use state information and evaluation reference information.
- the distribution evaluation unit 122 evaluates the generated cost evaluation graph (step S104), and specifies a reservation block according to the result of the distribution evaluation (step S105).
- each WSDB 21 has a different area composed of a time band and a frequency band specified by the empty block B. The reason is that, as described above, each WSDB 21 has a different region in which the usage status of the frequency band for each time zone is managed, so that the vacant time zone and frequency band are different for each region. .
- the empty block B1 is an area where all the empty blocks B1 to B3 overlap.
- four common empty blocks are obtained as shown in E of FIG.
- These common empty blocks become frequency bands that can be used in common in a common time zone in all regions under the control of the WSDBs 21-1 to 21-3.
- the broadcast server 11 can broadcast and distribute content using the distribution frequency band corresponding to the distribution time zone in the distribution time zone within the common empty block area shown in E of FIG. . Then, the broadcast-distributed content is distributed to TVBDs 31-1 to 31-M existing in the area under the control of WSDB 21-1 to 21-3.
- the evaluation can be executed after weighting the empty block area. For example, for areas where content is expected to be viewed by more viewers, such as 19: 00-22: 00 on Sundays, the cost of using free blocks is set higher while early morning and For areas that are expected to have fewer viewers, such as late-night hours, the use cost of empty blocks is set low.
- each WSDB 21 corresponds to a graph representing the empty blocks B1 to B3 of FIG. 9A to FIG. 9C on the time and frequency planes.
- a time-high cost area an area in which a large number of viewers are expected to view and the usage cost is high.
- the overlapping blocks B1 to B3 are superimposed. Furthermore, the time high cost area is superimposed. In other words, among the common free block areas, the common free blocks in the high time cost area are expected to be high in cost, but the use cost outside the high time cost area is low (hereinafter referred to as low time). Common free blocks (called cost areas) are expected to be low in cost.
- the evaluation standard information includes a cost parameter indicating which of the common free blocks belonging to the time high cost area or the time low cost area is prioritized.
- a common free block in the low-cost area is selected as a reserved block as shown in E of FIG. 10E, the case where the low time cost area is prioritized is illustrated.
- a common empty block in the high time cost area is used. Will be selected as the reserved block.
- the use cost of the empty block may be set according to the bit rate of content delivery, that is, the frequency band cost.
- a region where the bit rate is expected to be high and the usage cost is high (hereinafter referred to as a high frequency cost region) can be set.
- the empty blocks B1 to B3 that are superimposed are shown.
- a high frequency area is superimposed. That is, among the common free blocks, the common free blocks in the high frequency area of the frequency are expected to be high in cost, but the use cost outside the high cost area of the frequency is low (hereinafter referred to as the low frequency area of the frequency). Cost) is expected to be low.
- the evaluation criterion information includes, as the cost parameter, a parameter indicating which of the above-described parameters related to the priority of the time cost area, common empty blocks belonging to the frequency high cost area or the frequency low cost area is prioritized.
- a common free block in the low frequency area is selected as a reserved block as shown in E of FIG. 11E, the case where the frequency low cost area is prioritized is illustrated.
- the cost parameter indicates the frequency high cost area priority
- a common empty block in the frequency high cost area is illustrated. Will be selected as the reserved block.
- time cost shown in FIG. 10 and the frequency cost shown in FIG. 11 are combined, and a reserved block is selected from the common free blocks according to the combination of the time cost and the frequency cost. May be.
- a case where such a combination is used is, for example, a case where it is desired to minimize the frequency cost but the time cost may be the maximum.
- a time high cost region and a frequency high cost are set for a graph in which empty blocks B1 to B3 are respectively represented on the time and frequency planes. be able to.
- FIGS. 12A to 12C are superimposed on one plane, as shown in FIG. 12D, the empty blocks B1 to B3 that are superimposed are shown. Furthermore, a time high cost region and a frequency high cost region are superimposed. That is, among the common free blocks, the common free block in the time high cost area or the frequency high cost area is expected to be high in cost, while the common free block in the time low cost area or the frequency low cost area is common. The cost is expected to be low.
- the cost parameter indicates the priority in the time high cost region and the frequency low cost region
- the cost parameter is in the time high cost region and in the frequency low cost region as shown in E of FIG. Is selected as a reserved block.
- FIG. 12E illustrates the case where the time high cost region and the frequency low cost region are prioritized.
- the cost parameter indicates the time high cost region priority and the frequency high cost region priority. If there is, a common empty block that is in the time high cost area and in the frequency high cost area is selected as the reserved block. In addition, when priority is given to the time low-cost area and frequency low-cost area, or when the time low-cost area and frequency high-cost area are preferred, the common free block in the priority area is reserved. Will be selected.
- the distribution evaluation unit 122 priority is given to any of the common free blocks belonging to one or both of the time high cost region or the time low cost region and the frequency high cost region or the frequency low cost region. Evaluation is performed after weighting with a parameter indicating whether or not a reserved block is specified.
- the cost parameter is set in advance by a content provider such as a content production company as evaluation standard information.
- the content provider wants to allow more viewers to view its content distribution conditions (distribution time band and distribution frequency band), for example, considering its own budget, or It can be set from the viewpoint of wanting to deliver at a higher bit rate. As a result, the content provider can distribute the desired content under the best distribution conditions within its own budget.
- step S ⁇ b> 105 when the process of step S ⁇ b> 105 ends, the process further returns to the flowchart of FIG. 6, and the processes after step S ⁇ b> 23 are executed.
- step S24 the WSDB inquiry unit 123 notifies the reserved blocks identified by the distribution evaluation process to the WSDBs 21-1 to 21-3 via the transmission path 2, respectively.
- step S32 the DB management unit 212 of the WSDB 21-1 registers the reserved block notified from the broadcast resource management server 12 in the WSDB 213. Similarly, in the WSDB 21-2 and WSDB 21-3, the notified reserved blocks are registered in the WSDB 213, respectively.
- the time zone and frequency band corresponding to the reserved block are reserved for content distribution by the broadcast server 11, and cannot be used for distribution of other content.
- the distribution schedule generation unit 126 generates a distribution schedule based on the reserved block specified by the distribution evaluation process (step S25).
- This distribution schedule is distribution information of content distributed in the distribution time band and distribution frequency band assigned to the reservation block, and is composed of, for example, a file (manifest file) in which metadata is stored.
- a file manufactured file
- metadata information on the title, genre, outline, purchase price, and other contents of content scheduled to be distributed for each distribution time band and distribution frequency band is stored as metadata.
- the generated distribution schedule is notified to the broadcast server 11 by the communication unit 121, and is also notified to the TVBDs 31-1 to 31-M via the transmission path 2 by the distribution schedule notification unit 127 (step S26). .
- scheduling of distribution processing is executed by the control unit 110 (step S13).
- this scheduling based on the notified distribution schedule, a schedule for broadcast distribution of content is made using the distribution frequency band when the distribution time zone comes.
- the broadcast server 11 stands by until the control unit 110 determines that the distribution time zone has come (“Yes” in step S14 in FIG. 7).
- the control unit 310 executes scheduling of the reception process (step S61). In this scheduling, in order to make it possible to receive desired content delivered from the broadcast server 11 using the delivery frequency band when the delivery time zone comes based on the notified delivery schedule. Is scheduled.
- the control unit 310 has information on the title, genre, outline, purchase price, and other content for each content scheduled to be distributed, as shown in FIG.
- the distribution schedule displayed on the time and frequency plane is displayed on the display unit 312.
- the user confirms the distribution schedule displayed on the display unit 312 and selects the desired content that the user wants to view from the contents scheduled to be distributed by operating the input unit 313.
- the distribution schedule in FIG. 13 is an example of a screen display for allowing the user to select content to be distributed.
- an electronic program table EPG: Electronic Program Guide
- a display method such as a radio TV column of a newspaper may be used.
- the control unit 310 infers content that matches the preference of the user using the TVBD 31-1 from the content scheduled to be distributed. Processing may be executed and the analogized content may be regarded as content that the user wants to view. In this case, the user does not need to select desired content. Further, as the preference information, the above-described user viewing history or the like is used, and a genre or title content corresponding to the viewing history is selected.
- the TVBD 31-1 waits until the control unit 310 determines that it is just before the distribution time slot (for example, several minutes before distribution) (“Yes” in step S62 in FIG. 7).
- the reception process is scheduled when the distribution schedule is notified. Due to this scheduling, when the distribution time zone is reached, a schedule for making it possible to receive the desired content distributed from the broadcast server 11 using the distribution frequency band is made. Then, similarly to the TVBD 31-1, the TVBDs 31-2 to 31-M stand by until it is determined that the time is immediately before the distribution time period (“Yes” in step S72 in FIG. 7).
- the TVBDs 31-1 to 31-M are activated by the respective control units 310, and are each in a standby state. To a state where desired content can be received (steps S63 and S73). In other words, from the broadcast server 11 and broadcast resource management server 12 side, it can be said that the TVBDs 31-1 to 31-M are ready for distribution according to the distribution schedule.
- step S14 when it is determined that the distribution time has come (“Yes” in step S14), the process proceeds to step S15.
- the content distribution unit 113 broadcasts the content acquired by the content acquisition unit 111 to the TVBDs 31-1 to 31-M using the distribution frequency band.
- the content distributed from the broadcast server 11 is received by the communication unit 311 (steps S64 and S74).
- the received content is played back by the playback unit 314 and displayed on the display unit 312.
- the content to be distributed does not need to be played back in real time.
- the TVBD 31-M among the TVBDs 31-2 to 31-M stores the received content by the storage unit 315. Is done.
- control unit 310 determines whether or not the distribution of the content by the broadcast server 11 has ended, and when it is determined that the distribution of the content has not ended (“No” in step S66, “No” in S76). ), The process returns to steps S64 and S74. Then, the process of receiving and reproducing or storing the content is executed until the distribution of the content is completed.
- step S66 when it is determined that the content distribution has ended (“Yes” in step S66, “Yes” in S76), the control unit 310 transitions the state of the TVBD 31 from the receivable state to the standby state. As a result, in the TVBDs 31-1 to 31-M, the process of receiving and playing back or storing the content ends.
- step S27 the process proceeds to step S28.
- step S28 the WSDB inquiry unit 123 notifies the WSDBs 21-1 to 21-3 of the release of the reservation block used for content distribution via the transmission path 2, respectively.
- step S33 the DB management unit 212 of the WSDB 21-1 releases the reserved block notified by the broadcast resource management server 12 and registered in the WSDB 213. Similarly, the reserved blocks registered in the WSDB 213 are also released in the WSDB 21-2 and WSDB 21-3. Thereby, in each WSDB 21, the time zone and frequency band corresponding to the reserved block are released, and can be used for distribution of other contents.
- the frequency usage status information managed in the WSDB 21 is acquired, and based on the frequency usage status information, the distribution time zone and distribution of the content to be distributed The frequency band is evaluated. Then, the TVBDs 31-1 to 31-M in the area under the control of the WSDB 21 are notified of the distribution schedule, and the TVBDs 31-1 to 31-M that have become ready to receive according to the distribution schedule The content is broadcast.
- the TVBD 31 of the user who wants to view the content is always activated, so that the simultaneous simultaneous reception performance described above can be improved.
- the characteristics of broadcast distribution can be fully utilized, and the efficiency of information distribution such as contents can be improved.
- the evaluation is performed after weighting according to the time band and the frequency band, so it is commensurate with the cost to which the content provider is concerned.
- Content can be distributed at the time and bit rate of distribution.
- FIG. 14 is a diagram showing another configuration of the embodiment of the content distribution system of the present invention.
- the broadcast server 11 and the broadcast resource management server 12 have been described as independent devices, but these devices are regarded as one broadcast server 11 as illustrated in FIG. 14. You can also.
- the broadcast server 11 in FIG. 14 includes a broadcast distribution unit 11A as one processing unit corresponding to the broadcast server 11 in FIG. 1 and a broadcast resource management unit 12A as one processing unit corresponding to the broadcast resource management server 12.
- a broadcast distribution unit 11A as one processing unit corresponding to the broadcast server 11 in FIG. 1
- a broadcast resource management unit 12A as one processing unit corresponding to the broadcast resource management server 12.
- the broadcast server 11 of FIG. 14 is arranged in the facility of the service provider 3.
- the broadcast distribution unit 11A includes the control unit 110 to the content distribution unit 113 in FIG.
- the operations of the control unit 110 to the content distribution unit 113 in FIG. 2 are as described above.
- the broadcast resource management unit 12A includes the control unit 120 to the distribution schedule notification unit 127 in FIG.
- the operations of the control unit 120 to the distribution schedule notification unit 127 in FIG. 3 are as described above.
- the content distribution system 1 in FIG. 14 is configured.
- FIG. 15 is a diagram showing still another configuration of the embodiment of the content distribution system of the present invention.
- the broadcast server 11, the broadcast resource management server 12, and the WSDBs 21-1 to 21-N have been described as being independent devices. However, as shown in FIG. It can also be regarded as one broadcast server 11.
- the broadcast server 11 in FIG. 15 is one apparatus including the above-described broadcast distribution unit 11A in FIG. 14 and the broadcast resource management unit 12A, and the WSDB 21A as one processing unit corresponding to the WSDB 21.
- the broadcast server 11 in FIG. 15 is arranged in the facility of the service / network provider 5.
- the service network provider 5 is a provider that provides both a content distribution service and frequency usage status information.
- the WSDB 21A is configured from the control unit 210 to WSDB 213 in FIG.
- the operations of the control unit 210 to WSDB 213 in FIG. 4 are as described above.
- the content distribution system 1 in FIG. 15 is configured.
- weighting is performed at the cost of two stages of “low” and “high” for both time and frequency as the evaluation criterion information is not limited to the two stages described above.
- Weighting may be performed at a cost of three or more stages such as three stages of “medium” and “high” and four stages of “level 1”, “level 2”, “level 3”, and “level 4”.
- the content is distributed by the broadcast server 11, the content may be distributed not only by broadcasting such as television broadcasting but also by other communication methods.
- the communication is not only wireless communication and wired communication, but also communication in which wireless communication and wired communication are mixed, that is, wireless communication is performed in a certain section, and wired communication is performed in another section. It may be a thing. Further, communication from one device to another device may be performed by wired communication, and communication from another device to one device may be performed by wireless communication.
- FIG. 16 shows a configuration example of an embodiment of a computer in which a program for executing the series of processes described above is installed.
- the program can be recorded in advance in a recording unit 408 such as a hard disk or a ROM (Read Only Memory) 402 built in the computer 400.
- a recording unit 408 such as a hard disk or a ROM (Read Only Memory) 402 built in the computer 400.
- the program is stored temporarily on a removable recording medium 411 such as a flexible disk, a CD-ROM (Compact Disc Read Only Memory), an MO (Magneto Optical) disc, a DVD (Digital Versatile Disc), a magnetic disc, or a semiconductor memory. It can be stored permanently (recorded).
- a removable recording medium 411 can be provided as so-called package software.
- the program is installed on the computer 400 from the removable recording medium 411 as described above, and is transferred from the download site to the computer 400 via a digital satellite broadcasting artificial satellite or by a LAN (Local Area Network). ), It is transferred to the computer 400 via a network such as the Internet, and the computer 400 can receive the program transferred in this way by the communication unit 409 and install it in the recording unit 408.
- a network such as the Internet
- the computer 400 has a CPU (Central Processing Unit) 401 built-in.
- An input / output interface 405 is connected to the CPU 401 via the bus 404, and the CPU 401 operates the input unit 406 including a keyboard, mouse, microphone, and the like by the user via the input / output interface 405.
- the program stored in the ROM 402 is executed accordingly.
- the CPU 401 is a program stored in the recording unit 408, a program transferred from a satellite or a network, received by the communication unit 409 and installed in the recording unit 408, or a removable recording medium mounted on the drive 410
- the program read from 411 and installed in the recording unit 408 is loaded into a RAM (Random Access Memory) 403 and executed.
- RAM Random Access Memory
- the CPU 401 performs processing according to the above-described flowchart or processing performed by the configuration of the above-described block diagram. Then, the CPU 401 outputs the processing result from the output unit 407 configured with an LCD (Liquid Crystal Display), a speaker, or the like via the input / output interface 405, or from the communication unit 409 as necessary. Transmission is performed, and recording is performed by the recording unit 408.
- the output unit 407 configured with an LCD (Liquid Crystal Display), a speaker, or the like
- Transmission is performed, and recording is performed by the recording unit 408.
- processing steps for describing a program for causing a computer to perform various types of processing do not necessarily have to be processed in time series according to the order described in the flowchart, but in parallel or individually. This includes processing to be executed (for example, parallel processing or processing by an object).
- the program may be processed by a single computer, or may be processed in a distributed manner by a plurality of computers. Furthermore, the program may be transferred to a remote computer and executed.
- a system represents the whole apparatus comprised by a some apparatus.
- 1 content distribution system 2 transmission lines, 11 broadcast server, 11A broadcast distribution unit, 12 broadcast resource management server, 12A broadcast resource management unit, 21, 21A, 21-1 to 21-N WSDB, 31, 31-1 to 31 -M TVBD, 110 control section, 111 content acquisition section, 112 communication section, 113 content distribution section, 120 control section, 121 communication section, 122 distribution evaluation section, 123 WSDB inquiry section, 124 frequency usage information acquisition section, 125 evaluation Reference information acquisition unit, 126 distribution schedule generation unit, 127 distribution schedule notification unit, 210 control unit, 211 communication unit, 212 DB management unit, 213 WSDB, 310 control unit , 311 communication unit, 312 display unit, 313 input unit, 314 playback unit, 315 storage unit, 316 preference information acquisition unit, 400 computer, 401 CPU
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Computer Networks & Wireless Communication (AREA)
- Computer Security & Cryptography (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
- Information Transfer Between Computers (AREA)
Abstract
Description
1.第1の実施の形態
2.第2の実施の形態
3.第3の実施の形態
4.変形例
[コンテンツ配信システムの構成]
図1は、本発明のコンテンツ配信システムの一実施の形態の構成を示す図である。
次に、図2乃至図5を参照して、図1のコンテンツ配信システム1を構成する、ブロードキャストサーバ11、ブロードキャストリソース管理サーバ12、WSDB21、及びTVBD31のそれぞれの詳細な構成について説明する。
図2は、図1のブロードキャストサーバ11の構成例を示す図である。
図3は、図1のブロードキャストリソース管理サーバ12の構成例を示す図である。
図4は、図1のWSDB21の構成例を示す図である。
図5は、図1のTVBD31の構成例を示す図である。
次に、図6及び図7のフローチャートを参照して、図1のコンテンツ配信システム1において実行されるコンテンツ配信処理について説明する。
[コンテンツ配信システムの他の構成]
図14は、本発明のコンテンツ配信システムの一実施の形態の他の構成を示す図である。
[コンテンツ配信システムの他の構成]
図15は、本発明のコンテンツ配信システムの一実施の形態のさらに他の構成を示す図である。
前述した説明では、評価基準情報として、時間、周波数ともに「低」、「高」の2段階のコストで重み付けを行う例を説明したが、前述した2段階に限らず、例えば、「低」、「中」、「高」の3段階や、「レベル1」、「レベル2」、「レベル3」、「レベル4」の4段階など、3段階以上のコストで重み付けをしてもよい。
前述した一連の処理は、ハードウェアにより行うこともできるし、ソフトウェアにより行うこともできる。一連の処理をソフトウェアによって行う場合には、そのソフトウェアを構成するプログラムが、汎用のコンピュータ等にインストールされる。
Claims (9)
- 配信するコンテンツを取得するコンテンツ取得手段と、
所定の各地域における時間帯ごとの周波数帯域の利用状況に関する周波数利用状況情報を取得する周波数利用状況情報取得手段と、
取得した前記周波数利用状況情報に基づいて、取得した前記コンテンツを配信する配信時間帯と、その配信に利用する配信周波数帯域を評価する配信評価手段と、
前記地域内の複数の端末装置に対して、前記配信時間帯に前記配信周波数帯域を利用して配信される前記コンテンツの配信情報を通知する配信情報通知手段と、
前記配信時間帯になったとき、前記配信周波数帯域を利用して、取得した前記コンテンツを、前記配信情報に応じて配信可能な状態となった複数の前記端末装置に配信するコンテンツ配信手段と
を備える情報配信装置。 - 前記配信時間帯及び前記配信周波数帯域を評価するときの基準となる評価基準情報を取得する評価基準情報取得手段をさらに備え、
前記配信評価手段は、取得した前記評価基準情報に基づいて、前記配信時間帯及び前記配信周波数帯域を評価する
請求項1に記載の情報配信装置。 - 前記評価基準情報は、より多くの視聴者による前記コンテンツの視聴が見込まれる時間帯のコストを高く評価し、かつ、前記コンテンツの配信ビットレートがより高く見込まれる周波数帯域のコストを高く評価するための基準である
請求項2に記載の情報配信装置。 - 前記評価基準情報は、より多くの視聴者による前記コンテンツの視聴が見込まれる時間帯のコストを高く評価するための基準である
請求項2に記載の情報配信装置。 - 前記評価基準情報は、前記コンテンツの配信ビットレートがより高く見込まれる周波数帯域のコストを高く評価するための基準である
請求項2に記載の情報配信装置。 - 前記周波数利用状況情報取得手段は、各地域ごとの前記周波数利用状況情報を管理している情報管理装置から各地域ごとの前記周波数利用状況情報を取得する
請求項1に記載の情報配信装置。 - 前記情報配信装置は、配信装置と管理装置から構成されており、
前記配信装置は、前記コンテンツ取得手段と、前記コンテンツ配信手段とを備え、
前記管理装置は、前記周波数利用状況情報取得手段と、前記配信評価手段と、前記配信情報通知手段とを備える
請求項1に記載の情報配信装置。 - 情報配信装置が、
配信するコンテンツを取得し、
所定の各地域における時間帯ごとの周波数帯域の利用状況に関する周波数利用状況情報を取得し、
取得した前記周波数利用状況情報に基づいて、取得した前記コンテンツを配信する配信時間帯と、その配信に利用する配信周波数帯域を評価し、
前記地域内の複数の端末装置に対して、前記配信時間帯に前記配信周波数帯域を利用して配信される前記コンテンツの配信情報を通知し、
前記配信時間帯になったとき、前記配信周波数帯域を利用して、取得した前記コンテンツを、前記配信情報に応じて配信可能な状態となった複数の前記端末装置に配信する
ステップを含む情報配信方法。 - 情報配信装置、情報管理装置、及び複数の端末装置から構成される情報配信システムにおいて、
前記情報配信装置は、
配信するコンテンツを取得するコンテンツ取得手段と、
所定の各地域における時間帯ごとの周波数帯域の利用状況に関する周波数利用状況情報を管理している前記情報管理装置から、前記周波数利用状況情報を取得する周波数利用状況情報取得手段と、
取得した前記周波数利用状況情報に基づいて、取得した前記コンテンツを配信する配信時間帯と、その配信に利用する配信周波数帯域を評価する配信評価手段と、
前記地域内の前記複数の端末装置に対して、前記配信時間帯に前記配信周波数帯域を利用して配信される前記コンテンツの配信情報を通知する配信情報通知手段と
を備え、
前記端末装置のそれぞれは、
前記情報配信装置から通知される前記配信情報に基づいて、前記配信周波数帯域を利用して配信される前記コンテンツを前記配信時間帯に受信可能な状態に制御する制御手段を備え、
前記情報配信装置は、さらに、
前記配信時間帯になったとき、前記配信周波数帯域を利用して、取得した前記コンテンツを、前記配信情報に応じて配信可能な状態となった複数の前記端末装置に配信するコンテンツ配信手段を備え、
前記端末装置のそれぞれは、さらに、
前記情報配信装置から配信される前記コンテンツを受信する受信手段を備える
情報配信システム。
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BR112013017733A BR112013017733A2 (pt) | 2011-01-17 | 2012-01-10 | dispositivo, método e sistema de distribuição de informação |
EP12737051.8A EP2667310A4 (en) | 2011-01-17 | 2012-01-10 | INFORMATION DISTRIBUTION DEVICE AND METHOD, AND INFORMATION DISTRIBUTION SYSTEM |
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RU2013131992/08A RU2596996C2 (ru) | 2011-01-17 | 2012-01-10 | Устройство и способ распределения информации, и система распределения информации |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2696509A1 (en) * | 2011-06-06 | 2014-02-12 | Sony Corporation | Receiving device and method, information distribution device and method, and information distribution system |
CN104904147A (zh) * | 2013-01-07 | 2015-09-09 | 索尼公司 | 接收设备、方法和计算机程序 |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2014109102A1 (ja) | 2013-01-11 | 2014-07-17 | 日本電気株式会社 | メッセージ配信システム、配信順序決定装置、配信順序決定方法及び配信順序決定プログラム |
US9792380B2 (en) | 2014-05-31 | 2017-10-17 | Sound Concepts, Inc. | Systems and methods for enhanced networking, conversion tracking, and conversion attribution |
JP6769204B2 (ja) * | 2016-09-21 | 2020-10-14 | コニカミノルタ株式会社 | 画像形成装置、プログラム、および、画像形成システム |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009114931A1 (en) * | 2008-03-17 | 2009-09-24 | Wi-Lan Inc. | System and apparatus for cascading and distributing wireless signals |
WO2010027308A1 (en) * | 2008-09-05 | 2010-03-11 | Telefonaktiebolaget L M Ericsson (Publ) | Coordinated transmission for secondary usage |
WO2010120575A1 (en) * | 2009-04-14 | 2010-10-21 | Spectrum Bridge, Inc. | System and method for managing spectrum allocation |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH1132049A (ja) * | 1997-07-09 | 1999-02-02 | Seiko Epson Corp | 情報提供システムおよび情報提供方法 |
JP2002111567A (ja) * | 2000-09-29 | 2002-04-12 | Omron Corp | 衛星回線共同利用システム |
IL150629A0 (en) * | 2001-01-02 | 2003-02-12 | Nds Ltd | Method and system for control of broadcast content access |
US20060031082A1 (en) * | 2004-08-06 | 2006-02-09 | Amaitis Lee M | System and method for trading wireless spectrum rights |
US20070073583A1 (en) * | 2005-08-26 | 2007-03-29 | Spot Runner, Inc., A Delaware Corporation | Systems and Methods For Media Planning, Ad Production, and Ad Placement |
US8929870B2 (en) * | 2006-02-27 | 2015-01-06 | Qualcomm Incorporated | Methods, apparatus, and system for venue-cast |
JP2008072526A (ja) * | 2006-09-14 | 2008-03-27 | Toshiba Corp | デジタル放送システムとこのシステムに用いられる放送装置 |
EP2179348A4 (en) | 2007-07-13 | 2011-04-20 | Spot Runner Inc | METHODS AND SYSTEMS FOR EXECUTING MULTIMEDIA SEARCHES, MULTIMEDIA CREATIONS FOR SECURE DISTRIBUTION OF MULTIMEDIA |
US20100232504A1 (en) * | 2009-03-13 | 2010-09-16 | The State of Oregon acting by and through the State Board of Higher Education on behalf of the | Supporting region-of-interest cropping through constrained compression |
US8937872B2 (en) * | 2009-06-08 | 2015-01-20 | Wi-Lan, Inc. | Peer-to-peer control network for a wireless radio access network |
US8873524B2 (en) * | 2009-10-27 | 2014-10-28 | At&T Intellectual Property I, L.P. | Method and apparatus for providing channel sharing among white space networks |
-
2011
- 2011-01-17 JP JP2011007292A patent/JP5742233B2/ja not_active Expired - Fee Related
-
2012
- 2012-01-10 WO PCT/JP2012/050267 patent/WO2012098950A1/ja active Application Filing
- 2012-01-10 EP EP12737051.8A patent/EP2667310A4/en not_active Ceased
- 2012-01-10 RU RU2013131992/08A patent/RU2596996C2/ru not_active IP Right Cessation
- 2012-01-10 CN CN201280005023.0A patent/CN103314352B/zh not_active Expired - Fee Related
- 2012-01-10 KR KR1020137017500A patent/KR101855547B1/ko not_active Application Discontinuation
- 2012-01-10 BR BR112013017733A patent/BR112013017733A2/pt not_active Application Discontinuation
- 2012-01-10 US US13/995,382 patent/US9294790B2/en not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009114931A1 (en) * | 2008-03-17 | 2009-09-24 | Wi-Lan Inc. | System and apparatus for cascading and distributing wireless signals |
WO2010027308A1 (en) * | 2008-09-05 | 2010-03-11 | Telefonaktiebolaget L M Ericsson (Publ) | Coordinated transmission for secondary usage |
WO2010120575A1 (en) * | 2009-04-14 | 2010-10-21 | Spectrum Bridge, Inc. | System and method for managing spectrum allocation |
Non-Patent Citations (3)
Title |
---|
"Cognitive Musen Denpa Riyo no Muda o Nakushi Shuhasu no Hippaku Mondai o Kaiketsu", TELECOMMUNICATION, KABUSHIKI KAISHA RIC TELECOM, vol. 26, no. 8, 25 July 2009 (2009-07-25), pages 27 - 29, XP008170368 * |
KOJI FUJII, CORE TECHNOLOGY OF APPLICATION OF WHITE SPACE TO REDUCE RADIO WASTE, 13 December 2010 (2010-12-13) |
See also references of EP2667310A4 * |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
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EP2696509A1 (en) * | 2011-06-06 | 2014-02-12 | Sony Corporation | Receiving device and method, information distribution device and method, and information distribution system |
EP2696509A4 (en) * | 2011-06-06 | 2015-02-18 | Sony Corp | RECEIVING DEVICE AND METHOD, INFORMATION DISTRIBUTION DEVICE AND METHOD AND INFORMATION DISTRIBUTION SYSTEM |
CN104904147A (zh) * | 2013-01-07 | 2015-09-09 | 索尼公司 | 接收设备、方法和计算机程序 |
US20150341796A1 (en) * | 2013-01-07 | 2015-11-26 | Sony Corporation | Receiving device, method and computer program |
CN104904147B (zh) * | 2013-01-07 | 2018-08-17 | 索尼公司 | 接收设备、方法和计算机程序 |
US10405187B2 (en) | 2013-01-07 | 2019-09-03 | Sony Corporation | Receiving device, method and computer program |
Also Published As
Publication number | Publication date |
---|---|
KR101855547B1 (ko) | 2018-05-04 |
EP2667310A1 (en) | 2013-11-27 |
CN103314352A (zh) | 2013-09-18 |
US9294790B2 (en) | 2016-03-22 |
CN103314352B (zh) | 2016-08-10 |
RU2013131992A (ru) | 2015-01-20 |
RU2596996C2 (ru) | 2016-09-10 |
KR20140001978A (ko) | 2014-01-07 |
BR112013017733A2 (pt) | 2016-10-11 |
JP5742233B2 (ja) | 2015-07-01 |
US20130276049A1 (en) | 2013-10-17 |
EP2667310A4 (en) | 2014-08-20 |
JP2012150572A (ja) | 2012-08-09 |
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