JP4651601B2 - In-train broadcast distribution system - Google Patents

In-train broadcast distribution system Download PDF

Info

Publication number
JP4651601B2
JP4651601B2 JP2006296134A JP2006296134A JP4651601B2 JP 4651601 B2 JP4651601 B2 JP 4651601B2 JP 2006296134 A JP2006296134 A JP 2006296134A JP 2006296134 A JP2006296134 A JP 2006296134A JP 4651601 B2 JP4651601 B2 JP 4651601B2
Authority
JP
Japan
Prior art keywords
data
broadcast program
vehicle
train
broadcast
Prior art date
Legal status (The legal status 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 status listed.)
Active
Application number
JP2006296134A
Other languages
Japanese (ja)
Other versions
JP2008113347A (en
Inventor
斉 堀井
Original Assignee
三菱電機株式会社
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 三菱電機株式会社 filed Critical 三菱電機株式会社
Priority to JP2006296134A priority Critical patent/JP4651601B2/en
Publication of JP2008113347A publication Critical patent/JP2008113347A/en
Application granted granted Critical
Publication of JP4651601B2 publication Critical patent/JP4651601B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Description

  The present invention relates to an in-train broadcast distribution system that distributes a TV broadcast program in a train using an IP network, for example.

  FIG. 9 shows a configuration of a conventional TV (television) broadcast distribution system (Patent Document 1) using an IP (Internet Protocol) network. A receiving device 701 in the figure receives broadcast radio waves via an antenna 706. The distribution server 702 digitally encodes the broadcast radio wave signal received by the receiving device 701 and stores it as broadcast program data in the large-capacity recording medium 705, and distributes the stored broadcast program data. The IP network 703 is a communication network such as a LAN (Local Area Network) or the Internet. The receiving computer terminal 704 is a user terminal device such as a PC (Personal Computer) or a television that receives TV broadcast distribution. The large-capacity recording medium 705 is a magnetic disk, a DVD (Digital Versatile Disk), or the like.

Next, the operation will be described. First, the receiving device 701 receives TV broadcast radio waves via the antenna 706. Next, the distribution server 702 digitally encodes the analog signal of the broadcast radio wave received by the receiving device 701 and temporarily stores it as broadcast program data in the large-capacity recording medium 705. When the receiving computer terminal 704 issues a broadcast program distribution request to the distribution server 702 via the IP network 703, the distribution server 702 stores the digital data of the broadcast program stored in the large-capacity recording medium 705. Is distributed to the receiving computer terminal 704 via the IP network 703.
JP 2001-339673 A

This TV broadcast distribution system has the following problems.
(1) Since it is necessary to temporarily store digitally encoded broadcast program data in the large-capacity recording medium 705, it is necessary to increase the recording capacity of the large-capacity recording medium 705 as the number of broadcast programs to be distributed increases.
(2) When distributing a program that is being broadcast, the TV station broadcasts the program and the receiving device 701 receives the broadcast radio wave for the time required to store the broadcast program data in the large-capacity recording medium 705. There is a time difference until the receiving computer terminal 704 outputs the broadcast program and the user can view the broadcast.
(3) When there are a plurality of receiving computer terminals 704, network traffic (broadcast program distribution request and broadcast program response) of the IP network 703 is generated by the number of receiving computer terminals 704. For this reason, a line capacity corresponding to the number of receiving computer terminals 704 is required.
(4) When there are a plurality of receiving computer terminals 704, the load on the distribution server 702 increases because a broadcast program distribution request from each receiving computer terminal 704 is processed. For this reason, it is necessary to increase the processing capacity of the distribution server 702 in accordance with the number of receiving computer terminals 704.

The present invention has been made to solve the above-described problems, and has the following objects, for example.
(1) Eliminates the need for the large-capacity recording medium 705 for storing broadcast program data.
(2) The time difference from when the TV station broadcasts the program and the receiving device 701 receives the broadcast wave to when the receiving computer terminal 704 outputs the broadcast program and the user can view the broadcast is made smaller.
(3) To reduce the line capacity required for broadcast program distribution.
(4) The load on the distribution server 702 is reduced.

  The in-train broadcast distribution system of the present invention includes a plurality of user terminal devices that decode and broadcast encoded digital signals of broadcasting, a concentrator that connects to the plurality of user terminal devices, and broadcast radio waves. A receiver that receives and outputs a broadcast analog signal based on the received radio wave; an encoder that encodes the broadcast analog signal output by the receiver to generate a digital broadcast signal; and a broadcast that is generated by the encoder A transmission device that multicasts a digital signal to each user terminal device via the concentrator, and includes a transmission device that is arranged for each vehicle and forms a ring network with a transmission device of another vehicle. And

According to the present invention, for example, the following becomes possible.
(1) Since the transmission apparatus distributes the program being broadcast by multicast to each receiving computer terminal 704 (user terminal apparatus), it is not necessary to store the data of the broadcast program, and the large-capacity recording medium 705 is not necessary.

1 and 2 are schematic diagrams of a TV broadcast distribution system in the embodiment described below.
An outline of a TV (television) broadcast distribution system in the embodiment will be described below with reference to FIGS.

  In FIG. 1 and FIG. 2, the receiving device 711 receives broadcast radio waves via an antenna 716. The encoder 712 digitally encodes the broadcast radio wave signal received by the receiving device 711. The IP network 713 is a communication network such as a LAN (Local Area Network) or the Internet. The receiving computer terminal 714 is a user terminal device such as a PC (Personal Computer) or a television set that receives TV broadcast distribution. 1 and 2 show one user terminal device (receiving computer terminal 714), the TV broadcast distribution system in the embodiment distributes TV broadcasts to a plurality of user terminal devices. Assumed. In FIG. 2, a recording medium 715 is connected to a receiving computer terminal 714 and used by a user for storing broadcast program data. The recording medium 715 is, for example, a magnetic disk or a DVD.

Next, the operation will be described. First, the receiving device 711 receives TV broadcast radio waves via the antenna 716. Next, the encoder 712 digitally encodes the analog signal of the broadcast radio wave received by the receiving device 711 and multicasts it to the IP network 713 without storing it in a large-capacity recording medium. The receiving computer terminal 714 receives the multicast data of the broadcast program distributed by the encoder 712 and flowing in the IP network 713, and displays and outputs the broadcast program for the user.
In FIG. 2, the receiving computer terminal 714 may store the received broadcast program data in the recording medium 715. Thereby, the receiving computer terminal 714 reproduces the data of the broadcast program stored in the recording medium 715, and the user can watch the past broadcast program at any time according to his / her convenience.

This TV broadcast distribution system has the following advantages.
(1) Since the encoder 712 distributes a broadcast program by multicast to each receiving computer terminal 704, it is not necessary to store broadcast program data, and a distribution server having a large-capacity recording medium is not required.
(2) Since it is not necessary to store broadcast program data, it does not take time to store the broadcast program data on a large-capacity recording medium, the TV station broadcasts the program, and the receiving device 711 receives the broadcast wave. Then, the time difference from when the receiving computer terminal 714 outputs the broadcast until the user can view the broadcast is shortened.
(3) Since the encoder 712 distributes the broadcast program not by unicast but by multicast, even when there are a plurality of reception computer terminals 714, it is not necessary to distribute the TV broadcast for each reception computer terminal 714, and is necessary for distribution of the broadcast program. The line capacity is reduced, and the line usage rate due to the distribution of broadcast programs does not increase.
(4) Since the encoder 712 distributes the broadcast program by multicast instead of unicast, the encoder 712 does not need to process the broadcast program distribution request from each receiving computer terminal 704 even when there are a plurality of receiving computer terminals 714. The system load will not increase.
(5) When the number of broadcast channels distributed to the receiving computer terminal 714 is increased, it is only necessary to increase the receiving device 711 and the encoder 712 by the number of programs.

Embodiment 1 FIG.
As Embodiment 1, an in-train broadcast distribution system that distributes broadcast programs in a train will be described.

FIG. 3 is a schematic diagram of the in-train broadcast distribution system 101 according to the first embodiment.
An overview of the in-train broadcast distribution system 101 in the first embodiment will be described below with reference to FIG.

In the in-train broadcast distribution system 101 according to the first embodiment, a broadcast reception antenna 210 (reception device) receives TV broadcast waves, and a tuner 200 (reception device) receives the broadcast waves received by the broadcast reception antenna 210 from the broadcast reception antenna 210 to the TV station. A corresponding broadcast radio wave is selected and a signal of a program broadcasted by the TV station is output. The transmission device 300 provided for each vehicle of the train 100 and forming the ring-type LAN 942 outputs the broadcast program output from the tuner 200 to each seat terminal 410 (user terminal device) or in-vehicle terminal 420 (user) in the vehicle. Multicast to terminal devices). The seat terminal 410 and the in-vehicle terminal 420 display and / or output the broadcast program that has been distributed to provide a TV broadcast distribution service to the passengers of the train 100.
In addition, in the in-train broadcast distribution system 101 according to the first embodiment, in addition to the TV broadcast distribution service, the scenery outside the train captured by the outside camera 610 (imaging device) is multicast to the seat terminal 410 and the in-vehicle terminal 420. A landscape distribution service is also provided.
The in-train broadcast distribution system 101 according to the first embodiment is characterized in that the transmission device 300 distributes a broadcast program by multicast distribution, and the transmission device 300 of each vehicle is connected to a ring-type LAN 942.
When the transmission apparatus 300 multicasts the broadcast program, the broadcast program is not unicastly transmitted to each seat terminal 410 or in-vehicle terminal 420, so the traffic on the LAN 942 does not increase.
In addition, when the transmission device 300 of each vehicle is connected to the ring-type LAN 942 and communicates by transmitting various signals (for example, broadcast program signals) in one direction of the ring, there is a signal collision between the transmission devices 300. Does not occur. Further, by connecting the transmission device 300 of each vehicle to a ring-type LAN 942 having a double communication path so that signals can be transmitted in both the left and right directions, a certain transmission device 300 and a cable between the transmission devices 300 are connected. Even if a failure occurs and communication to one side cannot be performed, a broadcast program can be transferred around the other side. That is, the in-train broadcast distribution system 101 according to the first embodiment is not affected by a failure that has partially occurred in the entire system, and each seat terminal 410 other than the vehicle in which the transmission device 300 has failed, A broadcast program can be distributed to 420.
As a result, the in-train broadcast distribution system 101 according to the first embodiment can provide passengers with a TV broadcast distribution service and a landscape distribution service with high image quality, sound quality, availability, and the like.
In addition, in-train broadcast distribution system 101 according to Embodiment 1 includes transmission device 300 in each vehicle, so that even when a vehicle is disconnected and connected to another vehicle, a TV broadcast distribution service or a landscape distribution service is provided. Can be provided to passengers of each vehicle.

FIG. 4 is a configuration example of the in-train broadcast distribution system 101 according to the first embodiment.
A configuration example of the in-train broadcast distribution system 101 according to Embodiment 1 will be described below based on FIG.
In the first embodiment, the train is assumed to be connected to vehicles from car a to car m.
In the in-train broadcast distribution system 101, a leading vehicle (car a) is a broadcast receiving antenna 210, a tuner 200 (tuner 200A to tuner 200N), an encoding device (encoder 510A to encoder 510N, encoder 611), a concentrator (switching hub). 520a, repeater hub 521, switching hub 522), seat terminal 410 (seat terminal 410a1 to seat terminal 410ax), in-vehicle terminal 420a, server device (in-vehicle sales server 621, content server 622, media server 623), provided data storage device ( A sales DB 631, a content DB 632, a media DB 633), an outside camera 610, and a transmission device 300a.
In addition, the other vehicles (No. b car to No. m car) are a concentrator (switching hub 520b to switching hub 520m), a seat terminal 410 (seat terminal 410b1 to seat terminal 410mx), an in-car terminal 420 (in-car terminal 420b to in-car terminal 420m). ), And transmission apparatus 300 (transmission apparatus 300b to transmission apparatus 300m).

The broadcast receiving antenna 210 is a receiving device that receives TV broadcast waves, and an antenna.
The tuner 200 (tuner 200A to tuner 200N) is a receiving device and a tuning device that select a radio wave having a frequency broadcast for a certain channel from a broadcast radio wave and generate an analog signal of a program broadcast for that channel. .
Encoding devices (encoder 510A to encoder 510N, encoder 611) encode analog signals to generate digital signals.
The tuner 200 and the encoding device are provided for the number of TV channels (the encoding device is also provided separately for the outside camera 610). The number of TV channels in the first embodiment is “N”, the in-train broadcast distribution system 101 includes tuners 200A to 200N, and the tuners 200A to 200N receive analog signals of broadcast programs of channels A to N. Assume that the data is output to encoders 510A to 510N. For example, tuner 200A outputs an analog signal of a broadcast program on channel A to encoder 510A, tuner 200B outputs an analog signal of a broadcast program on channel B to encoder 510B, and tuner 200N outputs an analog signal of a broadcast program on channel N. Output to the encoder 510N.

The server device (car sales server 621, content server 622, media server 623) trains product information on products sold in the car, content information such as games, media information such as video (video, voice) and music (voice). Provide to passengers inside.
The provided data storage device (sales DB 631, content DB 632, media DB 633 [DB: DataBase]) stores product information sold in the car, content information such as games, and media information such as video (video, audio) and music (voice). Is remembered.
The outside camera 610 is an imaging device that captures the scenery outside the vehicle.

  Seat terminal 410 (seat terminal 410a1 to seat terminal 410mx) and in-car terminal 420 (in-car terminal 420a to in-car terminal 420m) are TV broadcast programs, product information on products sold in the car, content information such as games, video (video) , Voice) and music (voice) media information is provided to the passenger of the seat and the passenger of the vehicle. The seat terminal 410 and the in-vehicle terminal 420 include a controller (controller 411a1 to controller 411mx, controller 421a to controller 421m) and a display device (display device 412a1 to display device 412mx, display device 422a to display device 422m). The controller is a control device or decoder that performs data input / output processing, decoding processing for decoding an encoded digital signal, and control processing for a display device. The display device performs display output and audio output.

  Transmission apparatus 300 (transmission apparatus 300a to transmission apparatus 300m) distributes broadcast programs from tuner 200 and encoder 510 (encoder 510A to encoder 510N) to seat terminal 410 and in-vehicle terminal 420 by multicast. Multicast distribution means transmitting data (signal) by multicast and transferring data (signal) transmitted by multicast. Further, the transmission device 300 transfers the passenger's request from the seat terminal 410 to the server device, and transfers the response from the server device to the seat terminal 410. The transmission device 300 is provided for each vehicle, and each transmission device 300 is connected by a LAN 942 that is a ring-type IP network. In the LAN 942, each transmission apparatus 300 is connected by two optical cables, and the communication path is duplexed by transmitting signals in different directions using the two optical cables.

  The line concentrator (repeater hub 521, switching hub 520a to switching hub 520m, switching hub 522) is connected to a plurality of communication devices such as an encoding device, a transmission device 300, a seat terminal 410, an in-vehicle terminal 420, and a server device with a cable, Relays communication signals (communication data) between communication devices. The repeater hub 521 transfers the digital signal of the broadcast program output from the encoder 510 to the transmission device 300a. The switching hub (switching hub 520a to switching hub 520m, switching hub 522) transmits data (signals) communicated between the seat terminal 410 and the transmission device 300 and between the server device and the transmission device 300a as a transmission destination address (multicast address, unicast). Address).

FIG. 5 is a flowchart of in-train broadcast distribution processing showing the in-train broadcast distribution method in the first embodiment.
The in-train broadcast distribution system 101 according to the first embodiment performs an in-train broadcast distribution service that distributes a TV broadcast program to each seat terminal 410 and each in-vehicle terminal 420.
The in-train broadcast distribution method in the first embodiment will be described below with reference to FIG.

<S101>
First, each tuner 200 receives a radio wave of a frequency broadcasted for a predetermined channel via the broadcast receiving antenna 210, generates an analog signal of a program broadcasted for the predetermined channel from the received radio wave, The generated analog signal of the program broadcast for the predetermined channel is output to the encoder 510.
For example, tuner 200A outputs an analog signal of a broadcast program on channel A to encoder 510A, tuner 200B outputs an analog signal of a broadcast program on channel B to encoder 510B, and tuner 200N outputs an analog signal of a broadcast program on channel N. Output to the encoder 510N.

<S102>
Next, each encoder 510 receives an analog signal of the broadcast program from the tuner 200, encodes the input analog signal to generate a digital signal of the broadcast program, and outputs the generated digital signal of the broadcast program to the repeater hub 521. .
For example, the encoder 510A inputs an analog signal of a broadcast program of channel A from the tuner 200A and outputs a digital signal of the broadcast program of channel A to the repeater hub 521, and the encoder 510B receives an analog signal of the broadcast program of channel B from the tuner 200B. Is input to the repeater hub 521, and the encoder 510N inputs an analog signal of the broadcast program of the channel N from the tuner 200N and inputs the digital signal of the broadcast program of the channel N to the repeater hub 521. Output to.
Further, when each encoder 510 outputs a digital signal of a broadcast program to the repeater hub 521, a multicast address is set in the digital signal of the broadcast program, and the digital signal of the broadcast program is sent to each passenger vehicle (cars a to m). Multicast transmission to each seat terminal 410 and in-vehicle terminal 420 is performed.
For example, each seat terminal 410 and in-vehicle terminal 420 of each passenger vehicle (car a to car m) is set as one broadcast distribution group, and a multicast address “239.0.0.1” is assigned to this broadcast distribution group. Each encoder 510 sets a multicast address “239.0.0.1” as a transmission destination address, and outputs a digital signal of a broadcast program in which a port number is set in association with the channel to the repeater hub 521. For example, the encoder 510A sets the port number “29001” in the digital signal of the broadcast program on channel A, and the encoder 510B sets the port number “29002” in the digital signal of the broadcast program on channel B. However, each encoder 510 only outputs the broadcast program digital signal to the repeater hub 521 and does not need to perform multicast transmission.

<S103>
Next, the repeater hub 521 of the broadcast receiving vehicle (car a) transfers the digital signal of the broadcast program input from each encoder 510 to the transmission device 300a.
In the first embodiment, the car No. a in which the repeater hub 521 is installed receives broadcast radio waves, and therefore the car a is called a broadcast receiving vehicle.

<S104>
Next, the transmission device 300 (transmission device 300a) of the broadcast receiving vehicle (car a) transmits the digital signal of the broadcast program transferred from the repeater hub 521 to each seat terminal 410 of each passenger vehicle (car a to car m), Multicast distribution to the terminal 420 is performed.
At this time, the transmission device 300a of the broadcast receiving vehicle (car No. a) transfers the digital signal of the broadcast program transmitted by each encoder 510 by multicast transmission. However, multicast transmission of a broadcast program may be performed by the transmission apparatus 300a instead of each encoder 510.
For example, each seat terminal 410 and in-vehicle terminal 420 of each passenger vehicle (car a to car m) is set as one broadcast distribution group, and a multicast address “239.0.0.1” is assigned to this broadcast distribution group. Then, the transmission device 300a of the broadcast receiving vehicle (car a) sets the multicast address “239.0.0.1” as the transmission destination address, and associates the port number with the encoder 510 that outputs the digital signal of the broadcast program. One digital signal of a broadcast program for which is set for each channel is transmitted. For example, the transmission device 300a of the broadcast receiving vehicle (car a) sets the port number “29001” in the digital signal of the broadcast program of channel A output from the encoder 510A, and the digital signal of the broadcast program of channel B output from the encoder 510B. Is set with the port number “29002”.
A digital signal of a broadcast program distributed by multicast from the transmission device 300a of the broadcast receiving vehicle (car a) is transferred to the transmission device 300b or the transmission device 300m adjacent to the transmission device 300a in the LAN 942, and the transmission device 300b or the transmission device 300m transmits it. A digital signal of one broadcast program is further transferred per channel to an adjacent transmission device 300 different from the device 300a. Similarly, the transmission apparatus 300 to which the digital signal of the broadcast program is transferred from the adjacent transmission apparatus 300 further transfers the digital signal of one broadcast program per channel to the adjacent transmission apparatus 300 that is not the transfer source, thereby broadcasting. The digital signal of the program is transferred to the transmission device 300 of all passenger vehicles (car a to car m). Then, the transmission device 300 of each passenger vehicle (car No. a to car No. m) transfers one digital signal of a broadcast program per channel to the switching hub 520 to which the own device is connected, so that the same vehicle as the own device is transmitted. A broadcast program digital signal is multicast-distributed via the switching hub 520 to each seat terminal 410 and in-vehicle terminal 420 installed.
In the first embodiment, since the seat terminal 410 and the in-vehicle terminal 420 where the passengers watch the broadcast program are installed in the car from the car a to the car m, the cars a to m are called passenger vehicles.

<S105>
Next, the switching hub 520 of each vehicle transfers the digital signal of the broadcast program transmitted by multicast transmission to each seat terminal 410 and in-vehicle terminal 420 of the same vehicle.
At this time, the switching hub 520 of each vehicle receives one broadcast program digital signal per channel from the transmission device 300 of the same vehicle, and obtains a transmission destination address from the received broadcast program digital signal. Next, the switching hub 520 of each vehicle connects the communication device belonging to the broadcast distribution group to which the multicast address (for example, “239.0.0.1”) set as the transmission destination address is assigned. Select from the communication devices to be used. Then, the switching hub 520 of each vehicle transfers the digital signal of the broadcast program received from the transmission device 300 of the same vehicle to each selected communication device. Here, each of the seat terminals 410 and the in-vehicle terminal 420 is a communication device that belongs to the broadcast distribution group to which the multicast address “239.0.0.1” is assigned and to which the digital signal of the broadcast program is transferred.

<S106>
Next, in each seat terminal 410 and in-vehicle terminal 420 of each vehicle, the controller 411 and the controller 421 decode the digital signal of the broadcast program transmitted from the transmission device 300 by multicast transmission and transferred from the switching hub 520 to display the display device 412 and display. Output to device 422.

<S107>
In each seat terminal 410 and in-vehicle terminal 420 of each vehicle, the display device 412 and the display device 422 display and output the analog signal of the broadcast program input from the controller 411 and the controller 421.

  In the in-train broadcast distribution system 101 according to the first embodiment, since the transmission device 300a of the broadcast receiving vehicle (car a) distributes the broadcast program in multicast, only one digital signal of the broadcast program is transmitted per channel on the LAN 942. Not. For this reason, in the in-train broadcast distribution system 101 according to the first embodiment, the load on the input / output processing of the LAN 942 traffic and the transmission device 300, the switching hub 520, the seat terminal 410, and the in-vehicle terminal 420 with respect to the digital signal of the broadcast program. Does not increase.

FIG. 6 is a flowchart of landscape distribution processing showing the landscape distribution method in the first embodiment.
The in-train broadcast distribution system 101 according to the first embodiment also provides a landscape distribution service for distributing the scenery outside the train viewed from the traveling train to each seat terminal 410 and each in-vehicle terminal 420.
A landscape distribution method according to the first embodiment will be described below with reference to FIG.

<S201>
First, the outside-camera shooting camera 610 captures a scene outside the train (for example, a scene in the traveling direction of the train as viewed from the first vehicle [car a]), generates an analog signal of the captured scene outside the train, and outputs the analog signal to the encoder 611. .

<S202>
Next, the encoder 611 receives an analog signal of the scenery outside the train from the outside camera 610, encodes the input analog signal to generate a digital signal of the scenery outside the train, and transmits the generated digital signal of the scenery outside the train to the transmission device Output to 300a.
When the encoder 611 outputs a digital signal of the scenery outside the vehicle to the transmission device 300a, a multicast address is set in the digital signal of the scenery outside the vehicle, and the digital signal of the scenery outside the vehicle is sent to each seat terminal of each passenger vehicle (car No. a to car No. m). 410, multicast transmission to the in-vehicle terminal 420. However, the encoder 611 may output only the digital signal of the scenery outside the train to the transmission device 300a and not perform multicast transmission.

<S203>
Next, the transmission device 300a of the camera vehicle (car a) multicasts the digital signal of the scenery outside the train output from the encoder 611 to each seat terminal 410 and in-car terminal 420 of each passenger vehicle (car a to car m). To do.
In the first embodiment, the scenery outside the train is imaged by the car a in which the transmission device 300a is installed, so the car a is called a camera vehicle.
The digital signal of the scenery outside the train is distributed by multicast in the same manner as the digital signal of the broadcast program in S104.

<S204 to S206>
Then, similarly to S105 to S107, the switching hub 520 of each vehicle transfers the scenery outside the train to each seat terminal 410 and in-vehicle terminal 420 of the same vehicle (S204), and each seat terminal 410 and in-vehicle terminal 420 of each vehicle. In step S205, the controller 411 and the controller 421 decode the scenery outside the train (S205), and the display device 412 and the display device 422 display and output the scenery outside the train in each seat terminal 410 and in-vehicle terminal 420 of each vehicle (S206). .

  In the in-train broadcast distribution system 101 according to the first embodiment, since the transmission device 300a of the camera vehicle (car a) multicasts the scenery outside the train in the same manner as the broadcast program, the traffic on the LAN 942 also includes the transmission device 300, the switching hub 520, The load of input / output processing of the seat terminal 410 and the in-vehicle terminal 420 does not increase.

FIG. 7 illustrates an example of the display device 412 in Embodiment 1.
In the display device 412 as shown in FIG. 7, the passenger selects and displays a favorite program out of the broadcast program and the scenery outside the train delivered to the seat terminal 410 of his seat.
In FIG. 7, the lower side is a part for selecting a channel and other information (for example, scenery outside the train) that the passenger likes, and the upper side is displaying a broadcast program and other information (for example, scenery outside the train) of the channel selected by the passenger. It is a part to
For example, when the passenger presses the “Ach” button, the display device 412 identifies the broadcast program broadcasted for the A channel input from the controller 411 by the port number (29001), and displays and outputs the sound.
Further, for example, when the passenger presses the “camera” button, the display device 412 displays and outputs the scenery outside the train input from the controller 411.

The in-train broadcast distribution system 101 according to the first embodiment also provides a data providing service for providing passengers with video / music (an example of media), a game (an example of content), and in-car sales product information from each seat terminal 410. .
In FIG. 7, when the passenger presses the “video” button, the display device 412 displays and outputs video, and when the passenger presses the “music” button, the display device 412 outputs music. When the “game” button is pressed, the game is displayed and output by voice, and when the “product” button is pressed by the passenger, the in-car sales product information is displayed and output.

FIG. 8 is a flowchart of a data providing process showing the data providing method in the first embodiment.
A data providing method according to the first embodiment will be described below with reference to FIG.

<S301>
First, the server device (in-vehicle sales server 621, content server 622, media server 623) provides products and products to be sold in the vehicle in the same manner as the transmission device 300a transmits a broadcast program or a landscape outside the train (S104, S203). The menu information of the content to be provided and the media to be provided is multicast transmitted to each seat terminal 410.
In each seat terminal 410, the display device 412 displays the broadcast program and the scenery outside the train (S105 to S107, S204 to S206), the menu information of the products to be sold in the car, the contents to be provided, and the media to be provided. indicate.
The display device 412 displays a menu showing a list of videos provided by the media server 623 when the passenger presses the “video” button in FIG. 7, and the media server 623 when the “music” button is pressed. A menu showing a list of music provided by the user is displayed. When the “game” button is pressed, a menu showing a list of games provided by the content server 622 is displayed, and when a “product” button is pressed. Displays a menu showing a list of products sold in the car by the car sales server 621.

<S302>
Next, the passenger designates the desired data from the seat terminal 410 of the own seat, and the seat terminal 410 inputs data information designated by the passenger.
For example, the passenger presses a button indicating the type of data desired among “video”, “music”, “game”, and “product” on the display device 412 as shown in FIG. 7, and the title is displayed on the displayed list menu. Specify the desired data by pressing the screen (touch panel) that displays the desired data individually. The display device 412 outputs the identification information of the data displayed on the pressed touch panel screen portion to the controller 411. Buttons and touch panels are examples of input devices.

<S303>
Next, the controller 411 of the seat terminal 410 that has designated the data desired by the passenger transmits a data request for requesting the data designated by the passenger to the server device in a unicast manner.
For example, when the passenger presses the touch panel of the display device 412 to specify the video “XYZ” and the display device 412 outputs the identification information “video” “XYZ”, the controller 411 displays “video” “XYZ”. Is transmitted as the request data information, the unicast address of the media server 623 as the transmission destination address, and the unicast address of the own seat terminal 410 as the transmission source address.

<S304>
Next, the switching hub 520 of the passenger vehicle transfers the data request transmitted by unicast to the transmission device 300 of the same vehicle.
At this time, the switching hub 520 to which the seat terminal 410 requested for data from the passenger connects acquires the transmission destination address from the data request. Next, the switching hub 520 selects a communication device to which the data request is transferred based on the unicast address set as the transmission destination address from the communication devices to which the own device is connected. Then, the switching hub 520 transfers the data request to the selected communication device. For example, when a data request is made to the seat terminal 410b1 of the car No. b, the data request is transferred to the transmission apparatus 300b of the car #b connected to the switching hub 520b of the car #b connected to the seat terminal 410b1.
Here, the vehicle in which the seat terminal 410 for which data is requested by the passenger is installed is called the passenger vehicle.

<S305>
Next, the transmission apparatus 300b of the passenger vehicle (car No. b) transfers the data request transmitted by unicast to the transmission apparatus 300a of the server vehicle (car No. a).
In the first embodiment, since the server device is installed in the car a, the car a is called a server vehicle.
The transmission device 300b of the passenger vehicle (No. b) transfers the data request to the transmission device 300a of the adjacent server vehicle (No. a vehicle). Alternatively, the transmission device 300b of the passenger vehicle (car b) transfers a data request to an adjacent transmission device 300c different from the transmission device 300a, and the data request is transmitted to the server vehicle (a Is transferred to the transmission device 300a.

<S306>
Next, the transmission device 300 (transmission device 300a) of the server vehicle (car a) to which the data request has been transferred transfers the data request to the switching hub 522 connected to the server device.
At this time, the transmission device 300 (transmission device 300a) of the server vehicle (car a) acquires the transmission destination address from the data request. Next, the transmission device 300 (transmission device 300a) selects a communication device to which the data request is transferred based on the unicast address set as the transmission destination address from the communication devices to which the own device is connected. Then, the transmission device 300 (transmission device 300a) transfers the data request to the selected communication device. Here, the transmission device 300a is a communication device to which the own device is connected, and transfers the data request to the switching hub 522 of the server vehicle (No. a vehicle) connected to the media server 623.

<S307>
Next, the switching hub 522 of the server vehicle (car No. a) to which the data request has been transferred transfers the data request to the server device.
At this time, the switching hub 522 of the server vehicle (car a) acquires the transmission destination address from the data request. Next, the switching hub 522 selects a server device to which the data request is transferred based on the unicast address set as the transmission destination address from the server devices to which the own device is connected. Then, the switching hub 522 transfers the data request to the selected server device. Here, the switching hub 522 transfers the data request to the media server 623.

<S308>
Next, the server device acquires the requested data from the provided data storage device based on the transferred data request, and unicasts the acquired data to the seat terminal 410 of the passenger who requested the data as a data response.
Here, the media server 623 acquires the video data “XYZ” from the media DB 633 using the video title “XYZ” set in the data request as a keyword, and sets the acquired video data “XYZ”. A data response in which the unicast address of the seat terminal 410b1 that requested the data is set as the transmission destination address is transmitted.

<S309 to S312>
Next, as in S304 to S307, the server vehicle switching hub 522 transfers the data response transmitted by the server device to the transmission device 300 [transmission device 300a] of the same vehicle (S309). [Transmission device 300a] transfers the data response to the transmission device 300 [Transmission device 300b] of the passenger vehicle [No. b] (S310), and the transmission device 300 [Transmission device 300b] of the passenger vehicle [No. b] data The response is transferred to the switching hub 520 [switching hub 520b] of the same vehicle (S311), and the switching hub 520 [switching hub 520b] of the passenger vehicle [car b] receives the data request from the passenger to the seat terminal 410 [seat terminal 410b1. ], The data response is transferred (S312).

<S313>
Next, the controller 411 (controller 411b1) of the seat terminal 410 (seat terminal 410b1) requested by the passenger to transmit data is unicast from the server device (media server 623) and transferred from the switching hub 520 (switching hub 520b). The response is output to the display device 412 (display device 412b1).

<S314>
The data (title “XYZ” video) set in the data response input from the controller 411 (controller 411b1) by the display device 412 (display device 412b1) of the seat terminal 410 (seat terminal 410b1) requested by the passenger. Data) (display output, audio output).

In the in-train broadcast distribution system 101 according to the first embodiment, the transmission device 300 of each vehicle is connected to the ring-type LAN 942 to transmit various signals (for example, broadcast program signals) in one direction of the ring for communication. Thus, there is no signal collision between the transmission apparatuses 300. Further, by connecting the transmission device 300 of each vehicle to a ring-type LAN 942 having a double communication path so that signals can be transmitted in both the left and right directions, a certain transmission device 300 and a cable between the transmission devices 300 are connected. Even if a failure occurs and communication to one side cannot be performed, a broadcast program can be transferred around the other side. That is, the in-train broadcast distribution system 101 according to the first embodiment is not affected by a failure that has partially occurred in the entire system, and each seat terminal 410 other than the vehicle in which the transmission device 300 has failed, A broadcast program can be distributed to 420.
As a result, the in-train broadcast distribution system 101 according to the first embodiment can provide passengers with a TV broadcast distribution service and a landscape distribution service with high image quality, sound quality, availability, and the like.
In addition, in-train broadcast distribution system 101 according to Embodiment 1 includes transmission device 300 in each vehicle, so that even when a vehicle is disconnected and connected to another vehicle, a TV broadcast distribution service or a landscape distribution service is provided. Can be provided to passengers of each vehicle.

In the in-train broadcast distribution system 101 of the first embodiment, a plurality of multicast groups may be provided and different information (broadcast program, landscape, data menu) may be distributed for each group.
For example, three groups of “general vehicles”, “green vehicles”, and “group vehicles” are provided as multicast groups, and the multicast address “239.0.0.1” is assigned to each seat terminal 410 of “general vehicles”. The multicast address “239.0.0.2” is assigned to each seat terminal 410 of “green vehicle”, and the multicast address “239.0.0.3” is assigned to each seat terminal 410 of “group vehicle”. assign. A terrestrial broadcast program addressed to the multicast address “239.0.0.1”, a terrestrial broadcast program addressed to the multicast address “239.0.0.2”, a BS (Broadcasting Satellite) broadcast program, and a multicast address “239”. 0.0.3 ", terrestrial broadcast programs, BS broadcast programs, and CS (Communication Satellite) broadcast programs are distributed to passengers of" general vehicles "," green vehicles "and" group vehicles ". And provide different broadcast programs.

  Further, in the in-train broadcast distribution system 101 of the first embodiment, a positioning device that periodically performs GPS (Global Positioning System) positioning, and a place name associated with a coordinate value calculated by the GPS positioning are stored. The server has a storage device and a server device that acquires a place name corresponding to the positioning result of the GPS positioning device from the storage device and distributes the place name to each seat terminal 410 and each in-vehicle terminal 420. You may inform passengers.

  Further, in the in-train broadcast distribution system 101 according to the first embodiment, the in-car sales server 621 is connected to a server device of a card company or a server device of a store that sells products via the Internet, and a product purchased by a passenger, a card number The order information such as the product delivery address is input from the input device (for example, button, touch panel) of the seat terminal 410, the seat terminal 410 transmits the passenger order information to the in-vehicle sales server 621, and the in-vehicle sales server 621 is the card company. The online purchase and sale of products may be performed by sending ordering information to the server device and the server device of the store and performing order processing.

The following items have been described in the first embodiment.
When broadcasting data stored on a server is distributed to a monitor receiver installed in each seat or in a vehicle on a train or an aircraft, the server distributes the broadcasting data to the receiver via an IP network. According to the broadcast distribution method using this IP network, broadcast data is transmitted from the server in response to a distribution request from the receiving device. At that time, a 1: 1 connection is established between the server and the receiving device, and network traffic corresponding to the bit rate of the broadcast data is generated for each receiving device. Therefore, it is necessary to enhance system processing capabilities such as server processing capabilities (CPU processing speed, memory storage capacity) and network capacities as the number of receiving devices increases.
Therefore, this problem is solved by setting the distribution method to the multicast method. The multicast distribution method cannot distribute a broadcast designated at a designated time in response to a request from a receiver, but allows passengers to watch a TV broadcast in real time in the same way as watching a TV in a general household. The multicast method has a merit that a 1: N connection is established between the server and the receiving device, and the load on the network is traffic for one piece of broadcast data to a plurality of receiving devices. As a result, the system processing capacity can be reduced. In addition, the server may multicast a plurality of broadcasts at the same time and select a channel that the passenger views.

1 is a schematic diagram of a TV broadcast distribution system in an embodiment. 1 is a schematic diagram of a TV broadcast distribution system in an embodiment. 1 is a schematic diagram of an in-train broadcast distribution system 101 according to Embodiment 1. FIG. 2 shows a configuration example of an in-train broadcast distribution system 101 according to the first embodiment. The flowchart of the in-train broadcast delivery process which shows the in-train broadcast delivery method in Embodiment 1. FIG. 5 is a flowchart of landscape distribution processing showing the landscape distribution method according to the first embodiment. 4 illustrates an example of a display device 412 in Embodiment 1. 4 is a flowchart of data provision processing showing a data provision method according to the first embodiment. Configuration of a conventional TV broadcast distribution system using an IP network.

Explanation of symbols

  100 train, 101 in-train broadcast distribution system, 200 tuner, 210 broadcast receiving antenna, 300 transmission device, 410 seat terminal, 411 controller, 412 display device, 420 in-vehicle terminal, 421 controller, 422 display device, 510 encoder, 520 switching hub 521 Repeater Hub, 522 Switching Hub, 610 Outside Camera, 611 Encoder, 621 In-Vehicle Sales Server, 622 Content Server, 623 Media Server, 631 Sales DB, 632 Content DB, 633 Media DB, 701 Receiver, 702 Delivery Server 703 IP network, 704 receiving computer terminal, 705 large capacity recording medium, 706 antenna, 711 receiving device, 712 encoder, 713 IP Network, 714 receiving computer terminal, 715 recording medium, 716 antenna, 942 LAN.

Claims (6)

  1. And the general vehicle can watch the terrestrial broadcast program, it is a train in the broadcast distribution system which performs broadcast distribution in the train and a green vehicle that can be viewed and terrestrial broadcast program and the satellite broadcast program,
    A seat terminal installed in each seat, the multicast address assigned to general vehicles when it is installed in a seat of a general vehicle is set, the multicast address assigned to the green vehicle when installed in a seat of the green vehicle A seat terminal with
    A receiver for receiving radio waves of terrestrial broadcast programs and radio waves of satellite broadcast programs;
    The terrestrial broadcast program data and the satellite broadcast program data are generated based on the radio waves of the terrestrial broadcast program and the satellite broadcast program received by the receiving device, and the generated terrestrial broadcast program data is used as a general vehicle. An encoder for multicast transmission using the multicast address for, and multicast transmission of the generated terrestrial broadcast program data and satellite broadcast program data using the multicast address for the green vehicle,
    Seat terminal installed in general vehicles receives data of a multicast transmitted terrestrial broadcast program by using the multicast address for the general vehicle, and outputs the terrestrial broadcast program on the basis of the data of the received terrestrial broadcasting programs ,
    Seat terminal installed in green vehicles, receives the data of the data and the satellite broadcast program multicast transmitted terrestrial broadcast program by using the multicast address for the green vehicle, based on data of the received terrestrial broadcasting programs An in-train broadcast distribution system that outputs the terrestrial broadcast program and outputs the satellite broadcast program based on the received data of the satellite broadcast program.
  2. Train broadcast distribution system according to claim 1, characterized by having the encoder for each broadcast channel.
  3. The in- train broadcast distribution system further includes:
    The terrestrial broadcast program data and the satellite broadcast program data that are arranged for each vehicle and are multicast-transmitted by the encoder are received, and the received terrestrial broadcast program data and satellite broadcast program data are sent to the seat terminal of the vehicle. The intra-train broadcast distribution system according to claim 1 or 2, further comprising a transmission device for multicast distribution, the transmission device forming a ring network with a transmission device of another vehicle.
  4. The in-train broadcast distribution system further includes an imaging device that images the scenery outside the train,
    The transmission device receives landscape data outside the train imaged by the imaging device, and distributes the received landscape data outside the train to a seat terminal of a vehicle in which the transmission device is arranged. 3. In- train broadcast distribution system according to 3.
  5. The in-train broadcast distribution system further includes:
    Provided data storage device for storing video data, music data, game data, and in-car sales product data;
    The providing data storage device the stored video data, music data, claims and having a game data and the server apparatus for distributing car sales item data through the transmission device to each seat terminal 3 or The in- train broadcast distribution system according to claim 4 .
  6. The seat terminal includes an input device for a user to order a product, and transmits order data for the product ordered by the input device to the server device,
    6. The in-train broadcast distribution system according to claim 5, wherein the server device performs order processing based on order data transmitted by the seat terminal .
JP2006296134A 2006-10-31 2006-10-31 In-train broadcast distribution system Active JP4651601B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2006296134A JP4651601B2 (en) 2006-10-31 2006-10-31 In-train broadcast distribution system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2006296134A JP4651601B2 (en) 2006-10-31 2006-10-31 In-train broadcast distribution system

Publications (2)

Publication Number Publication Date
JP2008113347A JP2008113347A (en) 2008-05-15
JP4651601B2 true JP4651601B2 (en) 2011-03-16

Family

ID=39445602

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2006296134A Active JP4651601B2 (en) 2006-10-31 2006-10-31 In-train broadcast distribution system

Country Status (1)

Country Link
JP (1) JP4651601B2 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010219669A (en) 2009-03-13 2010-09-30 Toshiba Corp Video server
KR101555566B1 (en) 2009-06-17 2015-09-25 삼성전자 주식회사 Electronic device in electronic device system comprising electronic devices circularly connected each other
JP2012100072A (en) * 2010-11-02 2012-05-24 Sankyo Co Ltd Terrestrial digital broadcast viewing system
CN103249629B (en) 2010-12-13 2015-11-25 三菱电机株式会社 In-vehicle information display system and guide information processing method
US9511784B2 (en) 2012-02-28 2016-12-06 Mitsubishi Electric Corporation In-car information display system and power supply method
CN103532651B (en) * 2013-09-27 2016-02-24 株洲南车时代电气股份有限公司 A kind of digital broadcasting system on train of high reliability

Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03280637A (en) * 1990-03-29 1991-12-11 Fujitsu Ten Ltd Wire receiver
JPH06252781A (en) * 1993-02-24 1994-09-09 East Japan Railway Co Mobile television broadcast reception system
JPH1127205A (en) * 1997-06-27 1999-01-29 Ricoh Co Ltd Broadcasting system for use in train
JP2000138966A (en) * 1998-10-29 2000-05-16 Matsushita Electric Ind Co Ltd Base station device and mobile station device used for electronic newspaper communication system
JP2001285332A (en) * 2000-03-30 2001-10-12 Toshiba Corp Information delivery system
JP2002059824A (en) * 2000-08-23 2002-02-26 Jisedai Joho Hoso System Kenkyusho:Kk Securing method for view in private room of rolling stock
JP2002152156A (en) * 2000-11-09 2002-05-24 Hitachi Kokusai Electric Inc Train display system
JP2002209193A (en) * 2001-01-09 2002-07-26 Mitsubishi Electric Corp On-train system for distributing and displaying video information
JP2003196491A (en) * 2001-12-28 2003-07-11 Sony Corp Data distribution method and content provider device
JP2005014784A (en) * 2003-06-26 2005-01-20 Hitachi Ltd Picture information distribution display system and railway train
JP2005130182A (en) * 2003-10-23 2005-05-19 Mobile Hoso Kk System for providing broadcasting service for train
JP2006020117A (en) * 2004-07-02 2006-01-19 Mitsubishi Electric Corp Train-mounted information control system
JP2006270765A (en) * 2005-03-25 2006-10-05 Toshiba Tec Corp Wireless lan system

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03280637A (en) * 1990-03-29 1991-12-11 Fujitsu Ten Ltd Wire receiver
JPH06252781A (en) * 1993-02-24 1994-09-09 East Japan Railway Co Mobile television broadcast reception system
JPH1127205A (en) * 1997-06-27 1999-01-29 Ricoh Co Ltd Broadcasting system for use in train
JP2000138966A (en) * 1998-10-29 2000-05-16 Matsushita Electric Ind Co Ltd Base station device and mobile station device used for electronic newspaper communication system
JP2001285332A (en) * 2000-03-30 2001-10-12 Toshiba Corp Information delivery system
JP2002059824A (en) * 2000-08-23 2002-02-26 Jisedai Joho Hoso System Kenkyusho:Kk Securing method for view in private room of rolling stock
JP2002152156A (en) * 2000-11-09 2002-05-24 Hitachi Kokusai Electric Inc Train display system
JP2002209193A (en) * 2001-01-09 2002-07-26 Mitsubishi Electric Corp On-train system for distributing and displaying video information
JP2003196491A (en) * 2001-12-28 2003-07-11 Sony Corp Data distribution method and content provider device
JP2005014784A (en) * 2003-06-26 2005-01-20 Hitachi Ltd Picture information distribution display system and railway train
JP2005130182A (en) * 2003-10-23 2005-05-19 Mobile Hoso Kk System for providing broadcasting service for train
JP2006020117A (en) * 2004-07-02 2006-01-19 Mitsubishi Electric Corp Train-mounted information control system
JP2006270765A (en) * 2005-03-25 2006-10-05 Toshiba Tec Corp Wireless lan system

Also Published As

Publication number Publication date
JP2008113347A (en) 2008-05-15

Similar Documents

Publication Publication Date Title
US10659181B2 (en) Mobile interactive satellite services
US10555117B2 (en) Apparatus systems and methods for proximity-based service discovery and session sharing
US9774890B2 (en) Incremental transmission of data
US10051332B2 (en) Transmission of video signals
AU2010236732B2 (en) Methods and apparatus for overlaying content onto a common video stream
CN102696224B (en) Method for connecting video communication to other device, video communication apparatus and display apparatus thereof
US8635654B2 (en) Wireless audio distribution system and method for an in-flight entertainment system
US9374605B2 (en) Method for enhancing television advertising viewership
US8434117B2 (en) Tunerless media presentation unit and methods of use
RU2524164C2 (en) Shared television sessions
US6952558B2 (en) Wireless sports view display and business method of use
AU2014237359B2 (en) Systems and methods for distributing audio/video feed of a live event via satellite
CN102396205B (en) Sharing of audio/visual content with a selected user
CN100591123C (en) Apparatus and method for providing media program
JPWO2012043358A1 (en) Content supply apparatus, content supply method, content reproduction apparatus, content reproduction method, program, and content viewing system
TWI419497B (en) Data transmission from a set-top box
US8649385B2 (en) Methods and apparatus for using tuners efficiently for delivering one or more programs
US8060910B2 (en) Set top box apparatus having a radio frequency antenna and an associated method
US8443408B2 (en) Method and system for managing bandwidth
US9253542B2 (en) Satellite signal distribution
US7584493B2 (en) Receiver card technology for a broadcast subscription video service
US8156526B2 (en) Apparatus and method for controlling screen layout in digital broadcast receiver for receiving moving picture content
CN105340257A (en) Distribution system for transitioning to new services
US20060277589A1 (en) System And Method For Presenting High-Quality Video
US20040203374A1 (en) Graphical indication of a proximately located device

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20081120

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20101005

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20101026

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20101116

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20101126

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20101214

A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20101214

R150 Certificate of patent or registration of utility model

Free format text: JAPANESE INTERMEDIATE CODE: R150

Ref document number: 4651601

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20131224

Year of fee payment: 3

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250