WO2009122914A1 - Système de diffusion, dispositif de création de calendrier de diffusion, procédé, et programme - Google Patents

Système de diffusion, dispositif de création de calendrier de diffusion, procédé, et programme Download PDF

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Publication number
WO2009122914A1
WO2009122914A1 PCT/JP2009/055326 JP2009055326W WO2009122914A1 WO 2009122914 A1 WO2009122914 A1 WO 2009122914A1 JP 2009055326 W JP2009055326 W JP 2009055326W WO 2009122914 A1 WO2009122914 A1 WO 2009122914A1
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WO
WIPO (PCT)
Prior art keywords
program
broadcast schedule
broadcast
viewing
area
Prior art date
Application number
PCT/JP2009/055326
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English (en)
Japanese (ja)
Inventor
悟 金田
Original Assignee
日本電気株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 日本電気株式会社 filed Critical 日本電気株式会社
Publication of WO2009122914A1 publication Critical patent/WO2009122914A1/fr

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Classifications

    • 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
    • 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
    • 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
    • H04N21/25—Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
    • H04N21/262—Content or additional data distribution scheduling, e.g. sending additional data at off-peak times, updating software modules, calculating the carousel transmission frequency, delaying a video stream transmission, generating play-lists
    • H04N21/26208—Content or additional data distribution scheduling, e.g. sending additional data at off-peak times, updating software modules, calculating the carousel transmission frequency, delaying a video stream transmission, generating play-lists the scheduling operation being performed under constraints
    • 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 
    • H04N21/65—Transmission of management data between client and server
    • H04N21/658—Transmission by the client directed to the server
    • H04N21/6581—Reference data, e.g. a movie identifier for ordering a movie or a product identifier in a home shopping application
    • 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
    • H04H60/29—Arrangements for monitoring broadcast services or broadcast-related services
    • H04H60/31—Arrangements for monitoring the use made of the broadcast services
    • 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
    • H04H60/61—Arrangements for services using the result of monitoring, identification or recognition covered by groups H04H60/29-H04H60/54
    • H04H60/66—Arrangements for services using the result of monitoring, identification or recognition covered by groups H04H60/29-H04H60/54 for using the result on distributors' side

Definitions

  • the present invention relates to a technique for broadcasting data of a program to each area in a communication system configuring a plurality of areas.
  • a wireless communication system that covers a communication area with a cell configured by a wireless base station
  • communication of a wide range of wireless terminals is enabled by arranging a plurality of cells.
  • WiMAX Worldwide Interoperability for Microwave Access
  • communication in various places becomes possible by covering a communication area with a small cell called a femtocell.
  • this type of wireless communication system there is a communication mode in which program data is broadcasted to a plurality of wireless terminals (see Japanese Patent Application Publication No. 2005-516474 and Japanese Patent Application Publication No. 2007-174645).
  • a plurality of radio channels are defined in a band usable in the radio communication system, and a radio channel for broadcasting a program is selected from among the radio channels.
  • data of a program is broadcasted from the radio base station.
  • the user can view the program by receiving data of a wireless channel on which the program is being broadcast by the wireless terminal.
  • a broadcast form a form in which a predetermined program is broadcast in a predetermined time zone in accordance with a predetermined broadcast schedule is common.
  • wireless resources are limited. Also, since wireless channels are also used for point-to-point calls, the number of wireless channels that can be used to broadcast a program is further limited. On the other hand, not all programs are watched in all cells. It may happen that a program to be watched in one cell is not watched in another cell.
  • Japanese Patent Application Laid-Open No. 2006-325061 describes a technique for collecting the past program viewing trends by viewers and creating a program broadcast schedule based on the collected viewing trends.
  • Japanese Patent Application Laid-Open No. 2006-325061 is to generate a program organization for each viewer, and not to create a broadcast schedule for each area as represented by a cell of a wireless communication system. . Therefore, although the technology can select the program desired by the viewer, it has not been possible to effectively use the communication channel of each area.
  • An object of the present invention is to provide a technique for effectively using a communication channel and broadcasting a program desired by a viewer.
  • a broadcasting system is An access network apparatus for assigning a communication channel to a program and broadcasting data of the program for each area in accordance with a predetermined broadcast schedule;
  • a viewing request for a program is collected from a terminal device that receives data of a program broadcast from the access network device, and a viewing trend for each area is calculated based on the viewing request, and each of the above is calculated based on the viewing trend.
  • a broadcast schedule creation device for creating a broadcast schedule of the area.
  • a broadcast schedule creation device is a broadcast schedule creation device that assigns a communication channel to a program for each area and creates a broadcast schedule used in an access network that broadcasts data of the program, Viewing information acquisition means for acquiring a viewing request for a program from a terminal device that receives data of a program broadcast by the access network; Viewing trend calculation means for calculating a viewing trend for each area based on the viewing request acquired by the viewing information acquisition means; And broadcast schedule determination means for creating a broadcast schedule for each area based on the viewing trend calculated by the viewing trend calculation means.
  • a broadcast schedule creation method is a broadcast schedule creation method for assigning a communication channel to a program for each area and creating a broadcast schedule used in an access network that broadcasts data of the program. , Obtaining a viewing request for a program from a terminal device that receives data of the program broadcast by the access network; Based on the acquired viewing request, the viewing trend for each area is calculated, The broadcast schedule of each area is created based on the calculated viewing tendency.
  • FIG. 7 is a diagram showing a state in which a plurality of base station apparatuses 11 cover a wide area.
  • FIG. 2 is a block diagram showing the configuration of a broadcast schedule creation device 14; 5 is a flowchart showing the operation of the broadcast schedule creation device 14;
  • FIG. 1 is a block diagram showing a configuration of a wireless communication system according to a first embodiment. It is a flowchart which shows the process which determines the broadcast schedule by the broadcast schedule preparation apparatus 14 in a 1st Example. It is a block diagram which shows the structure of the radio
  • FIG. 1 is a block diagram showing a configuration of a wireless communication system according to the present embodiment.
  • the wireless communication system includes a base station device 11, a gateway device 12, a broadcast server 13, and a broadcast schedule creation device 14.
  • the base station apparatus 11 and the gateway apparatus 12 constitute a wireless access network 16.
  • the base station apparatus 11 transmits and receives data to and from the wireless terminal 15 through a wireless channel.
  • the wireless communication system according to the present embodiment is not limited to point-to-point two-way communication represented by voice communication, and also broadcast type communication that broadcasts program data from the base station apparatus 11 to a plurality of wireless terminals 15 to support.
  • the broadcast server 13 and the broadcast schedule creation device 14 are devices for realizing a broadcast of a program.
  • the broadcast server 13 outputs program data in accordance with the given broadcast schedule.
  • the broadcast schedule is created by the broadcast schedule creation device 14 and given to the broadcast server 13.
  • the correspondence between the broadcasted program and the time zone in which the program is broadcast is defined for each cell.
  • the time zone is defined by the start time and the end time. Therefore, even in the same time zone, broadcasted programs may differ from cell to cell. For example, there may be a case where a program related to the facility is broadcasted only in a cell near a certain facility, such as sports broadcasting is broadcasted only near the stadium.
  • the data output from the broadcast server 13 is sent to the base station apparatus 11 via the network (not shown) and the gateway apparatus 12 as an example, and is broadcast from the base station apparatus 11 to the wireless terminal 15 via a wireless channel.
  • the wireless terminal 15 is a device that realizes communication desired by the user by transmitting and receiving data via the base station device 11. With regard to programs, the wireless terminal 15 can select a program desired by the user from among a plurality of programs broadcasted on the wireless channel from the base station apparatus 11 and can receive data of the program. This allows the user to view a desired program. As described above, the programs that the user can view may differ from cell to cell.
  • the wireless terminal 15 sends viewing information indicating the received program to the broadcast schedule creating device 14 via the base station device 11.
  • Viewer information of a viewer is added to the viewing information.
  • the viewer information may be registered in advance in the wireless terminal 15, or may be input by an operation of the viewer.
  • the viewer information includes information indicating an attribute of the viewer.
  • the attributes of the viewer include, for example, gender and age.
  • the viewer information may specify an individual viewer or may be information indicating only an attribute.
  • the viewing information may be sent out when the wireless terminal 15 enters or exits a cell of a certain base station apparatus 11 while watching a program. Also, as another example, the viewing information may be sent out at fixed time intervals.
  • the broadcast schedule creation device 14 creates a broadcast schedule indicating which program is broadcast in which cell and in which time zone, and notifies the broadcast server 13 and the base station device 11 of the broadcast schedule.
  • the broadcast schedule creating device 14 counts viewing information from the wireless terminal 15 to calculate viewing trends in each cell.
  • the viewing trend includes, for example, a program category of a program broadcasted in each cell and the number of viewers for each viewer attribute of the program.
  • the program category is, for example, a news program, a sports broadcast, a music program, a drama, an animation program, and the like.
  • the audience attributes include, for example, gender and age group. From this viewing trend, it is possible to know which program category has a large number of viewers in which time zone, which attribute has a large number of viewers in which time zone, and the like.
  • the broadcast schedule creation device 14 creates a broadcast schedule for each cell so that many viewers will watch a lot of programs based on the calculated viewing tendency.
  • the broadcast schedule may have a common time zone for broadcasting a certain program and may select whether or not to broadcast for each cell. Then, the broadcast server 13 does not have to transmit data of the same program many times in different time zones, and the load on the broadcast server 13 and the network (not shown) is reduced. Moreover, even if the wireless terminal 15 moves between cells, the user of the wireless terminal 15 can continue viewing the same program as long as the cells are broadcasted to the same program.
  • the broadcast schedule creation device 14 may use information from another device (not shown). For example, the broadcast schedule creation device 14 may publish the viewing trend on the network and accept the proposal of the broadcast schedule based on the viewing trend via the network. Alternatively, the broadcast schedule creation device 14 may determine a commission fee for commissioning the broadcast of the program in each cell from the viewing trend, and receive commission from a vendor providing the program.
  • the gateway device 12 is a device for connecting each base station device 11 to a network (not shown).
  • the base station apparatus 11 is an apparatus that transmits and receives data to and from the wireless terminal 15 through a wireless channel. As shown in FIG. 2, by covering a wide range with cells of a plurality of base station apparatuses 11, communication by the wireless terminal 15 becomes possible in various places. With regard to the broadcast program, the base station apparatus 11 broadcasts the data of the program sent from the broadcast server 13 over the wireless channel in accordance with the broadcast schedule created by the broadcast schedule creation apparatus 14.
  • the gateway device 12 may manage the assignment of the wireless channel of each base station device 11 and assign the wireless channel to the data of the program from the broadcast device 13 according to the determination of the broadcast schedule creation device 14. In that case, the base station apparatus 11 may broadcast the program data on the wireless channel according to the assignment by the gateway apparatus 12.
  • FIG. 3 is a block diagram showing the configuration of the broadcast schedule creation device 14.
  • the broadcast schedule creation device 14 includes a viewing information acquisition unit 21, a viewing trend calculation unit 22, a broadcast schedule determination unit 23, and a notification unit 24.
  • the viewing information acquisition unit 21 acquires viewing information from the wireless terminal 15 of the user who views the program broadcast in each cell, and stores the viewing information.
  • the viewing trend calculation unit 22 counts the viewing information accumulated by the viewing information acquisition unit 21 for each cell, and calculates the viewing trend in each cell based on the viewing information summarized.
  • the broadcast schedule determination unit 23 determines the broadcast schedule of each cell based on the viewing trend calculated by the viewing trend calculation unit 21. For example, the broadcast schedule is created a certain period of time before the broadcast date. A new viewing trend can be used by shortening the fixed period.
  • the fixed period may be determined in consideration of a preparation period required from the determination of the broadcast schedule to the broadcast date.
  • the notification unit 24 notifies the broadcast server 13 and the base station apparatus 11 of each cell of the broadcast schedule determined by the broadcast schedule determination unit 23. At that time, the notification unit 24 may notify the broadcast server 13 of the broadcast schedule of all the cells, and notify the base station apparatus 11 of the broadcast schedule of that cell. Further, for example, the notification unit 24 immediately notifies the broadcast server 13 of the entire determined broadcast schedule, divides the broadcast schedule for each program, and notifies the base station apparatus 11 of the broadcast start time of the program. You may decide to do it.
  • FIG. 4 is a flowchart showing the operation of the broadcast schedule creation device 14.
  • the broadcast schedule creation device 14 acquires viewing information from the wireless terminal 15 of the user who views the program broadcasted in each cell (step 101).
  • the broadcast schedule creation device 14 calculates the viewing trend in each cell based on the obtained viewing information (step 102).
  • the broadcast schedule creation device 14 determines the broadcast schedule of each cell based on the calculated viewing tendency (step 103). When creating a broadcast schedule from viewing trends, the broadcast schedule creation device 14 may use information from other devices. Details of the process of determining the broadcast schedule will be described later. Finally, the broadcast schedule creation device 14 notifies the broadcast server 13 and the base station device 11 of each cell of the determined broadcast schedule (step 104).
  • a broadcast schedule is created for each cell based on the viewing trend of programs broadcasted in the past, and wireless channels are allocated to programs in each cell according to the broadcast schedule Broadcast, so that it is possible to broadcast the program desired by the viewer by effectively using the limited wireless channel.
  • the broadcast schedule creation device 14 tabulates the actual viewing results by the viewer as viewing information and uses it for creating the broadcast schedule, but the present invention is not limited to this.
  • a viewing request including a viewing result of a program actually broadcast and a viewing request for a program not broadcast may be added up as viewing information and used to create a broadcast schedule. By doing so, it is possible to reflect in the broadcast schedule also a request for viewing an unbroadcast program.
  • the wireless terminal 15 creates a broadcast schedule via the base station apparatus 11 as viewing information, information indicating a received program and information indicating a program that the user wishes to view although not actually received. It may be sent to the device 14.
  • the first embodiment is configured to publish the viewing trend on the network and receive a proposal of a broadcast schedule based on the viewing trend from an external provider via the network.
  • FIG. 5 is a block diagram showing the configuration of a wireless communication system according to the first embodiment.
  • the wireless communication system includes a plurality of external vendor terminals 31 in addition to the broadcast server 13, the broadcast schedule creation device 14, and the wireless access network 16.
  • the broadcast server 13, the broadcast schedule creation device 14, the wireless access network 16, and the external vendor terminal 31 are connected to the network 32.
  • the broadcast schedule creation device 14 publishes the calculated viewing trend on the network 32.
  • the publicized viewing trends can be viewed from the external trader terminal 31.
  • the broadcast schedule creation device 14 receives a proposal of a broadcast schedule based on the viewing trend from the external trader terminal 31 via the network 32.
  • the broadcast schedule creation device 14 Since the data of the broadcast schedule candidate is transmitted from the external trader terminal 31, the broadcast schedule creation device 14 stores it and selects the broadcast schedule to be adopted from the candidates after the acceptance period is over. .
  • the reception period for receiving the broadcast schedule candidate proposal from the external vendor may be a predetermined fixed period.
  • the broadcast schedule creation device 14 may calculate the degree of commonality with other candidates for each candidate by comparing the accumulated candidates, and select the candidate with the highest degree of commonality.
  • the degree of commonality may be the degree to which the same program is assigned to the same time zone.
  • the broadcast schedule creation device 14 notifies the broadcast server 13 and a base station device (not shown) of the wireless access network 16 of the selected broadcast schedule.
  • the external contractor terminal 31 is a terminal used by a contractor who proposes a broadcast schedule, displays the viewing trend published by the broadcast schedule creation device 14, and transmits the broadcast schedule candidate created by the user to the schedule creation device 14 .
  • FIG. 6 is a flowchart showing the process of determining the broadcast schedule by the broadcast schedule creation device 14 in the first embodiment.
  • the broadcast schedule creation device 14 first publishes the calculated viewing trend on the network 32 (step 201).
  • the broadcast schedule creation device 14 publishes the viewing trend during the reception period.
  • the broadcast schedule creation device 14 receives data of broadcast schedule candidates from the external trader terminal 31 in the reception period (step 202).
  • the broadcast schedule creation device 14 selects a broadcast schedule to be adopted from the broadcast schedule candidates (step 203).
  • the objectivity of the broadcast schedule is improved.
  • a consignment fee for consigning a broadcast of a program in each cell is determined from the viewing trend, and the consignment fee is consigned from a provider of the program.
  • FIG. 7 is a block diagram showing the configuration of a wireless communication system according to the second embodiment.
  • the wireless communication system includes a plurality of program distributor terminals 41 in addition to the broadcast server 13, the broadcast schedule creation device 14, and the wireless access network 16.
  • the broadcast server 13, the broadcast schedule creation device 14, the wireless access network 16, and the program distributor terminal 41 are connected to the network 32.
  • the broadcast schedule creation device 14 calculates the commission fee in each time zone included in the broadcast schedule to be created for each cell based on the calculated watching trend, and the watching trend and the commission fee for each cell on the network 32.
  • Publish to And the broadcast schedule preparation apparatus 14 receives the application for incorporation to a broadcast schedule from the program delivery trader terminal 41 for a fixed reception period.
  • the commission fee may be, for example, a high commission rate for cells and time zones in which the average value of the number of viewers in all the program categories is large. By doing so, it is possible to ease the concentration of consignment applications in a time zone in which the number of viewers is large.
  • the consignment fee may be changed according to the category of the consignment program in the same time zone of the same cell. Based on the viewing trends, the number of expected viewers (the expected number of viewers) is calculated in advance for the combination of the time zone and the program category in each cell, and the consignment fee is set according to the expected number of viewers do it. For example, in a certain time zone of a certain cell, programs of a category with a large number of prospective viewers may have a low charge. By doing so, programs that are likely to be viewed by many viewers can be easily incorporated into the broadcast schedule.
  • the broadcast application for the program includes, for example, information indicating the program and its category, and a desired time zone and cell. It may be possible to specify multiple preferences for the desired time zone and cell.
  • the broadcast schedule creation device 14 adds up the received applications, and combines the application contents from each program distributor to create a broadcast schedule so that the total number of viewers increases.
  • the broadcast schedule creation device 14 combines the programs of the program distributors in such a manner that the number of programs allocated in the same time zone in the cell does not exceed the number of available wireless channels, Create a broadcast schedule to maximize the total number. By doing so, it is possible to create a broadcast schedule in which many viewers watch a program.
  • FIG. 8 is a flowchart showing a process of determining a broadcast schedule by the broadcast schedule creation device 14 in the second embodiment.
  • the broadcast schedule creation device 14 calculates a commission fee from the calculated viewing trend (step 301), and publishes information on the watching trend and the commission fee on the network 32 during the reception period (step 302). ). Next, the broadcast schedule creation device 14 receives an application from the program distributor terminal 41 in the reception period (step 303).
  • the broadcast schedule creation device 14 determines the broadcast schedule based on the contents of the application from each program distributor 41 (step 304).
  • the broadcast schedule is created by combining the programs so that the number of viewers increases for the program broadcasts in the time zone and cell desired by the program distributor, so that the program distributor's desire and the viewer's It is possible to create a broadcast schedule with a large number of viewers by effectively utilizing the communication channel in consideration of the desire.
  • the broadcast schedule creation device 14 of the embodiment and the example described above can also be realized by causing a computer to execute a software program that defines the processing procedure of each part.

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Databases & Information Systems (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)

Abstract

Un dispositif de réseau d'accès attribue un canal de communication à chaque programme pour chaque région conformément à un calendrier de diffusion prédéterminé, et il diffuse les données des programmes. Un dispositif de création de calendrier de diffusion collecte une requête de visionnage des programmes à partir de dispositifs terminaux qui reçoivent les données des programmes diffusés à partir du dispositif de réseau d'accès, il calcule la tendance de visionnage de chaque région sur la base de la requête de visionnage, et il crée un calendrier de diffusion pour chaque région sur la base de la tendance de visionnage.
PCT/JP2009/055326 2008-03-31 2009-03-18 Système de diffusion, dispositif de création de calendrier de diffusion, procédé, et programme WO2009122914A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2008-090768 2008-03-31
JP2008090768A JP4412511B2 (ja) 2008-03-31 2008-03-31 放送システムおよび放送スケジュール作成方法

Publications (1)

Publication Number Publication Date
WO2009122914A1 true WO2009122914A1 (fr) 2009-10-08

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PCT/JP2009/055326 WO2009122914A1 (fr) 2008-03-31 2009-03-18 Système de diffusion, dispositif de création de calendrier de diffusion, procédé, et programme

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JP (1) JP4412511B2 (fr)
TW (1) TW201004347A (fr)
WO (1) WO2009122914A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000156851A (ja) * 1998-11-20 2000-06-06 Jisedai Joho Hoso System Kenkyusho:Kk 番組配信システム
JP2002084438A (ja) * 2000-09-08 2002-03-22 Mitsubishi Electric Corp 放送番組編成支援システム、放送番組情報提供システム
JP2003069984A (ja) * 2001-08-23 2003-03-07 Nhk Engineering Services Inc オンデマンド放送方法
WO2006128151A2 (fr) * 2005-05-27 2006-11-30 Symbolic Intelligence Enhanced Systems, Inc. Systeme de diffusion de television cellulaire

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000156851A (ja) * 1998-11-20 2000-06-06 Jisedai Joho Hoso System Kenkyusho:Kk 番組配信システム
JP2002084438A (ja) * 2000-09-08 2002-03-22 Mitsubishi Electric Corp 放送番組編成支援システム、放送番組情報提供システム
JP2003069984A (ja) * 2001-08-23 2003-03-07 Nhk Engineering Services Inc オンデマンド放送方法
WO2006128151A2 (fr) * 2005-05-27 2006-11-30 Symbolic Intelligence Enhanced Systems, Inc. Systeme de diffusion de television cellulaire

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JP2009246677A (ja) 2009-10-22
TW201004347A (en) 2010-01-16
JP4412511B2 (ja) 2010-02-10

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