Projector, terminal, conferencing system, tree structure switching method and recording medium
First Claim
1. A projector that can function as a node in a tree structural network comprising:
- a projecting section;
a conference management section providing a conference management function;
a storage section that stores parent-child information that indicates a direct parent and a direct child in the network;
a data controller that uses the projecting section to project an image corresponding to image data and sends the image data to the direct child indicated in the parent-child information when receiving the image data from the direct parent indicated in the parent-child information;
a change section that, when receiving a switching request to make a request to switch a parent-child relationship from the direct child, sends the switching request to the direct parent, and that, when receiving permission information representing permission to switch from the direct parent, sends the permission information to the direct child that sent the switching request and changes the parent-child information so that the direct parent becomes the direct child, and the direct child that sent the switching request becomes the direct parent; and
a setting section that sets the projector which is connected directly to a presenter as a conference master.
2 Assignments
0 Petitions
Accused Products
Abstract
A conferencing system prevents useless data processing that accompanies data communication from occurring even when a presenter'"'"'s device that outputs image data is switched. A projector functions as a node in a tree structural network, and projects an image corresponding to image data and sends the image data to the direct child indicated in parent-child information when receiving the image data from the direct parent indicated in the parent-child information. A switching module, when receiving a switching request for making a request to switch a parent-child relationship from the direct child, sends the switching request to the direct parent, when receiving permission information representing permission to switch from the direct parent, sends the permission information to the direct child that sent the switching request and changes the parent-child information so that the direct parent becomes the direct child and the direct child that sent the switching request becomes the direct parent.
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Citations
9 Claims
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1. A projector that can function as a node in a tree structural network comprising:
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a projecting section; a conference management section providing a conference management function; a storage section that stores parent-child information that indicates a direct parent and a direct child in the network; a data controller that uses the projecting section to project an image corresponding to image data and sends the image data to the direct child indicated in the parent-child information when receiving the image data from the direct parent indicated in the parent-child information; a change section that, when receiving a switching request to make a request to switch a parent-child relationship from the direct child, sends the switching request to the direct parent, and that, when receiving permission information representing permission to switch from the direct parent, sends the permission information to the direct child that sent the switching request and changes the parent-child information so that the direct parent becomes the direct child, and the direct child that sent the switching request becomes the direct parent; and a setting section that sets the projector which is connected directly to a presenter as a conference master. - View Dependent Claims (2)
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3. A conferencing system comprised of a projector and a terminal that can function as a node in a tree structural network, wherein the projector comprises:
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a projecting section; a conference management section providing a conference management function; a storage section that stores parent-child information that indicates a direct parent and a direct child in the network; a data controller that uses the projecting section to project an image corresponding to image data and sends the image data to the direct child indicated in the parent-child information when receiving the image data from the direct parent indicated in the parent-child information; a change section that, when receiving a switching request for making a request to switch a parent-child relationship from the direct child, sends the switching request to the direct parent, and that, when receiving permission information representing permission to switch from the direct parent, sends the permission information to the direct child that sent the switching request and changes the parent-child information so that the direct parent becomes the direct child, and the direct child that sent the switching request becomes the direct parent; and a setting section that sets the projector which is connected directly to a presenter as a conference master, wherein the terminal comprises; a storing section that stores a parent ID when its own terminal is a parent; a display that displays an image; a transmitter that sends image data corresponding to the image displayed on the display to a child on a network to which its own terminal is connected when the storing section stores the parent ID; a first change section that sends the permission information to the child and deletes the parent ID in the storing section, when receiving the switching request from the child under circumstances where the storing section stores the parent ID; an output controller that, when receiving the image data from a parent on the network to which its terminal is connected under circumstances where the storing section does not store the parent ID, displays an image corresponding to the image data on the display; and a second change section that, under circumstances where the storing section does not store the parent ID when accepting an instruction to send the switching request, sends the switching request to the parent, and that stores the parent ID in the storing section when receiving the permission information from the parent.
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4. A tree structure switching method of a projector that can function as a node in a tree structural network, the method comprising:
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storing parent-child information that indicates a direct parent and a direct child in the network; projecting an image corresponding to image data and sending the image data to the direct child indicated in the parent-child information when the image data is received from the direct parent indicated in the parent-child information; sending a switching request for making a request to switch a parent-child relationship to the direct parent when the switching request is received from the direct child; and sending permission information representing permission to switch to the direct child that sent the switching request and changing the parent-child information so that the direct parent becomes the direct child, and the direct child that sent the switching request becomes the direct parent when the permission information is received from the direct parent. - View Dependent Claims (5)
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6. A non-transitory computer readable recording medium, on which a program is embedded, the program causing a computer that can function as a node in a tree structural network to execute:
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a procedure for storing parent-child information that indicates a direct parent and a direct child in the network; a procedure for projecting an image corresponding to image data and sending the image data to the direct child indicated in the parent-child information when the image data is received from the direct parent indicated in the parent-child information; a procedure for sending a switching request for making a request to switch a parent-child relationship to the direct parent when the switching request is received from the direct child; a procedure for sending permission information representing permission to switch to the direct child that sent the switching request and for changing the parent-child information so that the direct parent becomes the direct child, and the direct child that sent the switching request becomes the direct parent when the permission information is received from the direct parent; and a procedure for setting the projector which is connected directly to a presenter as a conference master. - View Dependent Claims (7)
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8. A projector that can function as a node in a tree structural network comprising:
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projecting means; conference management means for providing a conference management function; storage means for storing parent-child information that indicates a direct parent and a direct child in the network; data control means for using the projecting means to project an image corresponding to image data and for sending the image data to the direct child indicated in the parent-child information when receiving the image data from the direct parent indicated in the parent-child information; change means for, when receiving a switching request to make a request to switch a parent-child relationship from the direct child, sending the switching request to the direct parent, and for, when receiving permission information representing permission to switch from the direct parent, sending the permission information to the direct child that sent the switching request and for changing the parent-child information so that the direct parent becomes the direct child, and the direct child that sent the switching request becomes the direct parent; and setting means for setting the projector which is connected directly to a presenter as a conference master.
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9. A conferencing system comprised of a projector and a terminal that can function as a node in a tree structural network, wherein the projector comprises:
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projecting means; conference management means for providing a conference management function; storage means for storing parent-child information that indicates a direct parent and a direct child in the network; data control means for using the projecting means to project an image corresponding to image data and for sending the image data to the direct child indicated in the parent-child information when receiving the image data from the direct parent indicated in the parent-child information; change means for, when receiving a switching request for making a request to switch a parent-child relationship from the direct child, sending the switching request to the direct parent, and for, when receiving permission information representing permission to switch from the direct parent, sending the permission information to the direct child that sent the switching request and changing the parent-child information so that the direct parent becomes the direct child, and the direct child that sent the switching request becomes the direct parent; and a setting means for setting the projector which is connected directly to a presenter as a conference master, wherein the terminal comprises; storage means for storing a parent ID when its own terminal is a parent; display means for displaying an image; transmission means for sending image data corresponding to the image displayed on the display means to a child on a network to which its own terminal is connected when the storage means stores the parent ID; first change means for sending the permission information to the child and deleting the parent ID in the storage means, when receiving the switching request from the child under circumstances where the storage means stores the parent ID; output control means, when receiving the image data from a parent on the network to which its terminal is connected under circumstances where the storage means does not store the parent ID, for displaying an image corresponding to the image data on the display means; and second change means, under circumstances where the storage means does not store the parent ID when accepting an instruction to send the switching request, for sending the switching request to the parent, and for storing the parent ID in the storage means when receiving the permission information from the parent.
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Specification