JP6345620B2 - Video signal distribution system and video signal distribution method - Google Patents

Description

  The present invention relates to a video distribution system for distributing video signals of various contents in a PON (Passive Optical Network) system.

  In the PON system, there is a multicast method in the PON section as a distribution method for efficiently distributing video (Non-Patent Document 1, Non-Patent Document 2). FIG. 1 shows a configuration diagram of a PON system and an example of a multicast system in a PON section. The PON system is an access network in which an OLT (Optical Line Terminal) that is a receiving station side device and an ONU (Optical Network Unit) that is a user home side device are connected via an optical splitter via an optical transmission path.

  In the example of FIG. 1, between the OLT 92 and the ONU 93, for example, the video signal frame from the distribution server 91 is broadcasted using the broadcast logical link in the PON 82, and the video signal frame is transmitted by the filter 31 on the ONU 93 side. The permeation / disposal method is shown. As a method for controlling frame transmission / discard on the ONU 93 side, as shown in FIG. 1 of Non-Patent Document 1, the filter control unit 21 of the OLT 92 views from a lower-level device under the ONU 93 such as a set top box (STB) 94. A method is conceivable in which a request is received, internally processed, and the operation of the filter 31 of the ONU 93 is controlled.

  The multicast method of this PON section is superior in bandwidth utilization efficiency because there is no redundant distribution of the same channel in the broadcast distribution path, and it is also necessary to manage and copy and transfer the user who has requested viewing in the OLT 92 This is a desirable method from the viewpoint of copy load.

  As described above, video distribution in the PON system as described in FIG. 1 is a method in which a video signal frame is transmitted under the ONU 93 in response to a viewing request from a user. On the other hand, multicast video distribution in the IP section has copyright restrictions compared to video distribution by cable broadcasting.

  Specifically, IP multicast is a program to be transmitted, unlike broadcast or cable broadcast, as shown on the Agency for Cultural Affairs website (http://www.bunka.go.jp/chosakuken/18_houkaisei_qa/q01.html). Is not always delivered to the receiver in each home, but the program requested by the receiver is transmitted individually to the receiver. Under the Copyright Act, “(input type) automatic public Corresponds to "Send". As a result, there is a problem in that the rights relationship is complicated as compared with cable broadcasting, which is an obstacle to efficiently distributing various video contents using the PON system.

Masakazu Miyamoto, Shinya Kono, Kiyoshi Hayase, Akihiro Otaka, “A Proposal on Multicast Distribution Method in E-PON”, 2010 IEICE General Conference, B-6-124, March 2010 Masakazu Miyamoto, Hiroaki Sato, “Study on IP multicast delivery control method for multi-branch E-PON access with high-speed zapping performance”, IEICE Technical Report NS 2011-254, March 2012

  In view of these issues, the revision of the Copyright Act (2006) has been made to rebalance terrestrial broadcasts to eliminate the difference in rights processing between wired broadcasts and automatic public transmission. Yes. However, the above issues still remain for independent broadcasting (broadcasts other than rebroadcasting), and there is a specific method for solving this problem and realizing efficient video distribution of various video contents using the PON system. There was no practical examination.

  Therefore, an object of the present invention is to efficiently distribute various video signals using a PON system without being restricted by copyright.

A video signal distribution system according to the present invention includes:
A video signal distribution system that distributes video signals from a receiving station side device to a plurality of user home side devices,
The user home device is
It has a filter that transmits the set video signal to the lower device and discards signals other than the set video signal,
The accommodation station side device is:
A filter control unit configured to set the filter for each user home side device without receiving a viewing request from the lower-level device;
The video signal received from the host network is broadcast to all the user home devices.

  In the video signal distribution system according to the present invention, the user home side device sends a setting request for transmitting a predetermined video signal to the filter to the accommodation station side device without receiving a viewing request from the lower order device. The filter control unit of the accommodation station side device receives the setting request, the predetermined video signal for which the setting request has been made to the filter provided in the user home side device for which the setting request has been made You may perform the setting which permeate | transmits.

  In the video signal distribution system according to the present invention, the filter may be set to transmit a predetermined video signal before the user home side device is connected to the accommodating station side device.

  In the video signal distribution system according to the present invention, the set video signal may be a video signal set by a predetermined distribution company.

  In the video signal distribution system according to the present invention, the set video signal may be a video signal set in a predetermined content group.

  In the video signal distribution system according to the present invention, the set video signal may be a video signal set in a predetermined content.

In the video signal distribution system according to the present invention, the filter control unit is configured to set the filter for each user home side device, or the user home side device is configured to transmit a predetermined video signal to the filter. A distribution control operation system for making a request may be further provided.

The video signal distribution method according to the present invention includes:
A video signal distribution method for distributing video signals from a receiving station side device to a plurality of user home side devices,
A procedure in which the accommodation station side device sets a video signal transmitted to a lower device of the user home side device for each user home side device without receiving a viewing request from the user home side device;
The user home side device performs a setting of a filter that transmits a video signal to the lower order device according to the setting from the accommodation station side device;
A procedure in which the accommodating station side device broadcasts the video signal received from the host network to all the user home side devices;
The user home side device transmits the set video signal of the broadcast-distributed video signal to the lower-level device, and discards the signals other than the set video signal of the broadcast-delivered video signal. And the steps to
Repeat in order.

  The above inventions can be combined as much as possible.

  According to the present invention, various video signals can be efficiently distributed using the PON system without being restricted by copyright.

An example of the structure of a PON system is shown. 1 illustrates an example of a video signal distribution system according to a first embodiment. An example of the video signal delivery system which concerns on Embodiment 2 is shown. An example of the video signal delivery system which concerns on Embodiment 3 is shown. An example of the video signal delivery system which concerns on Embodiment 4 is shown. An example of the video signal delivery system which concerns on Embodiment 5 is shown. An example of the video signal delivery system which concerns on Embodiment 6 is shown. 10 illustrates an example of a video signal distribution system according to a seventh embodiment. 10 illustrates an example of a video signal distribution system according to an eighth embodiment. 10 illustrates an example of a video signal distribution system according to a ninth embodiment. An example of a video signal frame to which a provider ID and a group ID are assigned is shown. An example of a correspondence table in which a business ID and a video distribution business are associated with each other is shown. An example of a correspondence table in which group IDs are associated with content groups is shown. An example of the video signal delivery system which concerns on Embodiment 10 is shown. An example of a video signal frame to which a provider ID, a group ID, and an area ID are assigned is shown. An example of the correspondence table which matched area ID and a delivery area is shown.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In addition, this invention is not limited to embodiment shown below. These embodiments are merely examples, and the present invention can be implemented in various modifications and improvements based on the knowledge of those skilled in the art. In the present specification and drawings, the same reference numerals denote the same components.

(Embodiment 1)
FIG. 2 shows an example of a video signal distribution system according to this embodiment. The video signal distribution system according to the present embodiment includes a distribution server 91, an OLT 92 that is an accommodation station side device, an ONU 93 that is a user home side device, and an STB 94 that functions as a subordinate device.

  The OLT 92 and the ONU 93 constitute a PON system connected by the PON 82. As the PON system, for example, a system conforming to IEEE standards such as GE-PON and 10G-EPON and a system conforming to ITU-T standards such as G-PON and XG-PON are conceivable.

  The OLT 92 includes a filter control unit 21, and the ONU 93 includes a filter 31. The filter control unit 21 controls each ONU 93 to transmit a specific video signal frame under the ONU 93 without a viewing request from the STB 94 under the ONU 93. As a result, the filter control unit 21 sets the filter 31 for each ONU 93.

  For the setting of the filter 31, for example, an OAM (Operation, Administration, and Maintenance) frame is used. As a control timing, for example, it may be implemented in the initial connection process when the ONU 93 is connected to the PON system.

  For the identifier of a specific video signal frame, Ethernet (registered trademark) MAC address or VLAN-ID, IP address (for example, multicast source address and destination group address (S, G)), LLID (Logical Link ID) or the like. Further, not only a single identifier but also a combination of a plurality of identifiers can be considered.

  In the case of FIG. 2, the video signal distributed from the distribution server 91 to the accommodation station via the relay NW 81 is broadcast from the OLT 92 to all ONUs 93. In the broadcast distribution, for example, it is conceivable to use a broadcast logical link.

  The filter 31 of the ONU 93 transmits a specific video signal frame to a subordinate apparatus such as the STB 94 under control according to the filter setting input from the ONU 93 by the above-described mechanism, and discards the other frames.

  As described above, the video signal distribution system according to the present embodiment distributes content such as a video signal to the user without a viewing request from the user. Therefore, according to the copyright law, “(input type) automatic public transmission” Instead, it can be considered as “(wired) broadcasting”. Therefore, the video signal distribution system according to the present embodiment can efficiently distribute various video signals using the PON system without being restricted by copyright.

  Note that the ONU 93 filter settings may be different for each ONU 93, or may be the same for all ONUs 93.

  Further, the signal to be broadcasted by the above mechanism may be a part of the downstream band of the PON system, and the remaining band may be assigned to data communication other than video distribution.

(Embodiment 2)
FIG. 3 shows an example of a video signal distribution system according to this embodiment. In the first embodiment, the filter control unit 21 in the OLT 92 voluntarily controls the filter 31 in the ONU 93 without a viewing request from a lower-level device under the control of the ONU 93. However, in the present embodiment, The filter 31 raises a setting request to the filter control unit 21.

  For example, ONU # 3 makes a setting request for transmitting a predetermined video signal to the OLT 92. Then, the filter control unit 21 of the OLT 92 sets the ONU # 3 filter 31 so that the requested predetermined video signal is transmitted.

The timing for raising the setting request may be, for example, when the ONU 93 is connected to the PON system. In the initial connection process, the filter 31 in the ONU 93 raises the setting request to the filter control unit 21. Each ONU 93 is controlled to transmit a specific video signal frame under the ONU 93.
Other operations are the same as those in the first embodiment.

(Embodiment 3)
FIG. 4 shows an example of a video signal distribution system according to the present embodiment. In both the first and second embodiments, the filter control unit 21 in the OLT 92 controls the filter 31 in the ONU 93 to realize the transmission operation of a specific video signal frame. The transmission operation is set in the filter 31 in the ONU 93.

  In the initial setting before the ONU 93 is connected to the PON system (at the time of factory shipment or the like), the filter 31 in the ONU 93 is set to transmit a specific video signal frame to the STB 94 under the ONU 93. The same operation as in the first and second embodiments is realized.

  As a feature of the present embodiment, a predetermined operation can be realized even if there is no upstream communication path from the ONU 93 to the OLT 92.

(Embodiment 4)
FIG. 5 shows an example of a video signal distribution system according to the present embodiment. In each of the first to third embodiments, the filter 31 in the ONU 93 is controlled so that only a specific video signal frame is transmitted. However, in the present embodiment, all video signal frames are transmitted. .

  For example, in a situation where signals other than video flow to the same ONU 93, the filter 31 in the ONU 93 does not transmit signals other than video (Internet access, VoD video, etc.), and transmits all signals as video signals. The operation corresponds to this.

  As a feature of the present embodiment, like the RF video distribution system, in the video signal distribution system, it is possible to realize a system that does not generate any signal selection and transmits all video signals to the STB 94 under the ONU 93. .

(Embodiment 5)
FIG. 6 shows an example of a video signal distribution system according to this embodiment. In the present embodiment, only video signal frames distributed by a predetermined video distribution company are transmitted under the control of the ONU 93.

  FIG. 6 shows a case where the filter 31 in the ONU 93 is controlled by the method of the first embodiment. Three operators A, B, and C are assumed as video distribution operators, and these signals are multiplexed and distributed to all ONUs 93 via the relay NW 81 and the PON section.

  Here, by associating the video signal of each video distribution company in advance with an identifier (MAC address, VLAN-ID, IP address, etc.) for determining transmission / discard by the filter 31 in the ONU 93, the ONU 93 It is possible to control the video signal frame transmitted under the control of each video distributor.

  The filter control of the ONU 93 may be different for each ONU 93. By using the same PON system by performing individual filter control according to the contract status of the service provided by each user's video distributor. The video distribution service of a plurality of video distribution companies can be provided virtually.

  In addition, an operation system (operator information distribution OpS95 in FIG. 6) that automatically associates video signals and identifiers of each video distribution company may be used.

(Embodiment 6)
FIG. 7 shows an example of a video signal distribution system according to the present embodiment. In the present embodiment, only video signal frames of a predetermined content group are transmitted under the ONU 93. FIG. 7 shows a case where the filter 31 in the ONU 93 is controlled by the method of the first embodiment. Three groups of a, b, and c are assumed as content groups, and these signals are multiplexed and distributed to all ONUs 93 via the relay NW and the PON section.

  As a unit of the content group, a transmission platform unit such as BS / CS, a content genre / category unit, or the like can be considered.

  Here, by associating the video signals of each content group in advance with identifiers (MAC address, VLAN-ID, IP address, etc.) that are determined to be transmitted / discarded by the filter 31 in the ONU 93, The transmitted video signal frame can be controlled in units of content groups.

  The ONU filter control may be different for each ONU 93, and the contract status of the service provided by each user's video distribution company (for example, contract only for BS / contract for both BS and CS, contract for sports program only / hobby program only) By performing individual filter control according to a contract, etc., it is possible to virtually provide video distribution services of a plurality of contract forms using the same PON system.

  Further, an operation system (operator information distribution OpS95 in FIG. 7) that automatically associates video signals and identifiers of each content group may be used.

(Embodiment 7)
FIG. 8 shows an example of a video signal distribution system according to this embodiment. In the present embodiment, only the video signal frame of the predetermined content is transmitted under the ONU 93. FIG. 8 shows a case where the filter 31 in the ONU 93 is controlled by the method of the first embodiment. It is assumed that three video signals of contents α, β, and γ are distributed from the distribution server 91, and video signal frames including these video signals are multiplexed and distributed to all ONUs 93 via the relay NW 81 and the PON section. Is done.

  Here, by associating the video signal of each content with an identifier (MAC address, VLAN-ID, IP address, etc.) that is determined to be transmitted / discarded by the filter 31 in the ONU 93 in advance, it is transmitted under the ONU 93. The video signal frame can be controlled in units of content.

  The ONU filter control may be different for each ONU 93. The contract status of the service provided by each user's video distribution company (for example, contract for only a specific program, contract for viewing a certain sport event (for pay-per-view) By performing individual filter control according to the image), it is possible to virtually provide video distribution services in a plurality of contract forms using the same PON system.

  In addition, an operation system (operator information distribution OpS95 in FIG. 8) that automatically associates video signals and identifiers of each content may be used.

(Embodiment 8)
FIG. 9 shows an example of a video signal distribution system according to the present embodiment. The distribution control operation system 96 remotely controls the operations of the filter control unit 21 in the OLT 92 and the filter 31 in the ONU 93. The distribution control operation system 96 causes the filter control unit 21 to set the filter 31 for each ONU 93. Accordingly, it is possible to remotely control the transmission signal under the ONU 93 according to the contract form of the video distribution company or the user.

  The distribution control operation system 96 may cause the ONU 93 to make a setting request. Further, regarding the communication path of the control signal from the distribution control operation system 96 to the filter control unit 21 in the OLT 92 and the filter 31 in the ONU 93, the video distribution PON system may be shared, or separately. Alternatively, a control signal transmission network 83 may be constructed and used.

(Embodiment 9)
A specific implementation example of the operation of the filter control unit 21 in the OLT 92 and the filter 31 in the ONU 93 in the above configuration will be described. In the fifth embodiment and the sixth embodiment, it is necessary to perform different filter operations on a plurality of video distribution providers and content groups with the same OLT 92 / ONU 93 operation. FIG. 10 shows an implementation example using an Ethernet (registered trademark) VLAN tag (VID). In this example, the VID mechanism defined by IEEE 802.1Q is utilized.

  FIG. 10 shows an example of the configuration of the video signal distribution system according to the present embodiment. In the video signal distribution system according to the present embodiment, the distribution server 91 includes an ID processing rule registration unit 11, an operator ID provision unit 12 and a group ID provision unit 13, and the filter 31 includes an ID processing rule registration unit 311 and a filter function unit. 312 is provided.

  The provider ID assigning unit 12 assigns a provider ID to the input video signal frame. The group ID assigning unit 13 assigns a group ID to the input video signal frame. FIG. 11 shows an example of a video signal frame to which an ID is assigned. For example, among 12-bit VIDs, 7 bits are linked to the provider ID to correspond to up to 128 video distribution providers. Also, another 4-bit area is associated with the group ID to correspond to a maximum of 16 content groups.

  The distribution server 91 and the ONU 93 have ID processing rule registration units 11 and 311, respectively. The distribution server 91 side has a VID assignment rule corresponding to the video distribution company / content group, and the ONU side corresponds to each VID. Has transparency / discard rules.

  The registration of the above processing rule can be realized by cooperation with the provider information distribution OpS95. The provider information distribution OpS 95 has a correspondence table of the above provider ID / group ID and video distributor / content group as shown in FIGS. This table is updated at a timing such as when this video service provider contracts to use this network service.

  Further, these tables hold information on processing rules (discard / transfer) for each ID in each ONU 93 in the network. The provider information distribution OpS 95 registers the processing rule in each device by distributing the information in the table to the distribution server 91 and distributing it to the ONU 93 via the OLT 92.

  The ID processing rule registration unit 11 registers the processing rule received from the business operator information distribution OpS 95 in the business operator ID assigning unit 12 and the group ID assigning unit 13. The ID processing rule registration unit 311 registers the processing rule received from the provider information distribution OpS 95 in the filter function unit 312.

  Further, the above information distribution may be performed via the distribution control operation system 96 shown in FIG. In this case, the provider information distribution OpS 95 manages information on the video distribution service side such as the contract relationship between the video distributor and the content group and the end user, and the distribution control operation system 96 includes a network such as the accommodating relationship between the OLT 92 / ONU 93 and the end user. Side information is managed, and processing rules are registered in cooperation between these two operation systems. This configuration is effective, for example, when it is desired to distinguish between operation system devices that manage information on the service side and the network side.

  The case of VID has been described above, but the method of assigning bit areas is not limited to the above, and identifiers such as IP addresses and MAC addresses may be used in addition to VID.

(Embodiment 10)
Furthermore, in addition to the identification of the video distribution company / content group, it is also conceivable to perform filter processing according to various distribution areas. FIG. 14 shows an implementation example using an Ethernet (registered trademark) VLAN tag (VID).

  In the video signal distribution system according to the present embodiment in FIG. 14, the distribution server 91 includes an ID processing rule registration unit 11, a provider ID provision unit 12, a group ID provision unit 13, and an area ID provision unit 14.

  FIG. 15 shows an example of a video signal frame to which an ID is assigned. In this example, a double tag mechanism defined by IEEE 802.1ad is used. For example, the C-tag is associated with the provider ID and the group ID as in FIG. 11, and the information about the area is further associated with the S-tag. For example, as shown in FIG. 15, 10 bits are associated with an area ID, and distribution areas are associated with prefecture units or finer units.

  In the distribution server 91 and the ONU 93, in addition to the correspondence table of the provider ID / group ID and the video distributor / content group as shown in FIGS. 12 and 13, the correspondence table of the area ID and the delivery area as shown in FIG. Is held. The registration of processing rules using the provider information distribution OpS 95 and the distribution control operation system 96 is the same as described above.

  According to this configuration, for example, when it is desired to restrict a distribution area due to a company request or the like, a distribution area is associated with an area ID in advance, and further, each of the ONUs 93 is managed by the company information distribution OpS 95 or the distribution control operation system 96. By managing the existing area and performing filter control based on this information, desired distribution area control can be realized.

  In this embodiment, the case of VID has been described. However, the method of assigning bit areas is not limited to the above, and identifiers such as IP addresses and MAC addresses may be used in addition to VID. You may use it in combination.

  The present invention can be applied to the information communication industry.

11: ID processing rule registration unit 12: provider ID granting unit 13: group ID granting unit 14: area ID granting unit 21: filter control unit 31: filter 311: ID processing rule registration unit 312: filter function unit 81: relay network 82: PON
83: Control signal transmission network 91: Distribution server 92: OLT
93: ONU
94: Set top box 95: Operator information distribution operation system 96: Distribution control operation system

Claims (13)

A video signal distribution system that distributes video signals from a receiving station side device to a plurality of user home side devices,
The user home device is
It has a filter that transmits the set video signal to the lower device and discards signals other than the set video signal,
Without receiving a viewing request from the lower-level device, making a setting request to transmit the predetermined video signal to the filter to the accommodation station side device,
The accommodation station side device includes a filter control unit that performs the setting of the filter for each user home side device without receiving a viewing request from the lower order device,
Upon receiving the setting request, the filter control unit of the accommodating station side device transmits the predetermined video signal having the setting request to the filter provided in the user home side device having the setting request. set preferences to,
The accommodating station side device broadcasts the video signal received from the host network to all the user home side devices,
Film image signal distribution system. A video signal distribution system that distributes video signals from a receiving station side device to a plurality of user home side devices,
The user home device is
A filter that transmits the set video signal to the lower level device and discards signals other than the set video signal, and is determined in advance before the user home side device is connected to the accommodation station side device. Equipped with a filter that is set to transmit the received video signal ,
The accommodation station side device is:
A filter control unit configured to set the filter for each user home side device without receiving a viewing request from the lower-level device;
Broadcast distribution of video signals received from a higher-level network to all the user home devices;
Film image signal distribution system. A video signal distribution system that distributes video signals from a receiving station side device to a plurality of user home side devices,
The user home device is
It has a filter that transmits the set video signal to the lower device and discards signals other than the set video signal,
The accommodation station side device is:
A filter control unit configured to set the filter for each user home side device without receiving a viewing request from the lower-level device;
Broadcast the video signal received from the host network to all the user home side devices,
The video signal distribution system causes the filter control unit to set the filter for each user home device, or makes a setting request for allowing the user home device to transmit a predetermined video signal to the filter. includes a distribution control operation system that,
Film image signal distribution system. The filter is set to transmit a predetermined video signal before the user home side device is connected to the accommodation station side device.
The video signal distribution system according to claim 3 . The user home device is
Without receiving a viewing request from the lower-level device, making a setting request to transmit the predetermined video signal to the filter to the accommodation station side device,
The filter control unit of the accommodation station side device,
When the setting request is received, a setting is made to transmit the predetermined video signal having the setting request to the filter provided in the user home side device having the setting request.
The video signal distribution system according to claim 2 . The set video signal is a video signal set to a predetermined distribution company,
Video signal distribution system according to any one of claims 1 to 5. The set video signal is a video signal set in a predetermined content group.
Video signal distribution system according to any one of claims 1 to 6. The set video signal is a video signal set to a predetermined content.
Video signal distribution system according to any one of claims 1 to 7. A video signal distribution method for distributing video signals from a receiving station side device to a plurality of user home side devices,
A procedure in which the filter control unit of the accommodation station side device sets a video signal that is transmitted to a lower device of the user home side device for each user home side device without receiving a viewing request from the user home side device. When,
The user home side device performs a setting of a filter that transmits a video signal to the lower order device according to the setting from the accommodation station side device;
A procedure in which the accommodating station side device broadcasts the video signal received from the host network to all the user home side devices;
The user home side device transmits the set video signal of the broadcast-distributed video signal to the lower-level device, and discards the signals other than the set video signal of the broadcast-delivered video signal. And the steps to
The order had row,
Before the procedure in which the filter control unit of the accommodation station side device sets the video signal for each user home side device, the user home side device does not receive a viewing request from the lower order device, A setting request for transmitting a predetermined video signal is made to the accommodation station side device,
When the filter control unit of the accommodation station side device receives the setting request, the filter control unit of the accommodation station side device executes a procedure of setting a video signal for each user home side device, and the setting request A video signal distribution method for performing a setting for transmitting the predetermined video signal for which the setting request has been made to the filter provided in the user home side apparatus . A video signal distribution method for distributing video signals from a receiving station side device to a plurality of user home side devices,
A procedure in which the filter control unit of the accommodation station side device sets a video signal that is transmitted to a lower device of the user home side device for each user home side device without receiving a viewing request from the user home side device. When,
The user home side device is a filter that transmits a video signal to the lower order device according to the setting from the accommodation station side device, and before the user home side device is connected to the accommodation station side device, A procedure for setting a filter set to transmit a predetermined video signal ;
A procedure in which the accommodating station side device broadcasts the video signal received from the host network to all the user home side devices;
The user home side device transmits the set video signal of the broadcast-distributed video signal to the lower-level device, and discards the signals other than the set video signal of the broadcast-delivered video signal. And the steps to
A video signal distribution method in which A video signal distribution method for distributing video signals from a receiving station side device to a plurality of user home side devices,
A procedure in which the filter control unit of the accommodation station side device sets a video signal that is transmitted to a lower device of the user home side device for each user home side device without receiving a viewing request from the user home side device. When,
The user home side device performs a setting of a filter that transmits a video signal to the lower order device according to the setting from the accommodation station side device;
A procedure in which the accommodating station side device broadcasts the video signal received from the host network to all the user home side devices;
The user home side device transmits the set video signal of the broadcast-distributed video signal to the lower-level device, and discards the signals other than the set video signal of the broadcast-delivered video signal. And the steps to
The order had row,
In the procedure in which the filter control unit of the accommodation station side device sets a video signal for each user home side device, the distribution control operation system causes the filter control unit to set for each user home side device, or A video signal distribution method for causing the user home side apparatus to make a setting request for transmitting a predetermined video signal to the filter . In the procedure in which the user home side device sets the filter, the user home side device transmits a predetermined video signal before the user home side device is connected to the accommodating station side device. Set the set filter,
  The video signal distribution method according to claim 11. Before the procedure in which the filter control unit of the accommodation station side device sets the video signal for each user home side device, the user home side device does not receive a viewing request from the lower order device, A setting request for transmitting a predetermined video signal is made to the accommodation station side device,
When the filter control unit of the accommodation station side device receives the setting request, the filter control unit of the accommodation station side device executes a procedure of setting a video signal for each user home side device, and the setting request Performing setting for transmitting the predetermined video signal for which the setting request has been made, with respect to the filter provided in the user home side device having
  The video signal delivery method according to claim 10.

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