Communication Apparatus, Communication System, and Communication Method
1 Assignment
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Accused Products
Abstract
Suitable processing is performed considering a case where a confirmation notification of participation in group communication or other data communication was sent, but the notification is delayed and data communication has already ended when the notification arrives at the other party.
The present communication apparatus includes a communication unit 2 for transmitting/receiving data, an input unit 3, and a control unit 7 which, when start of data communication is input from said input unit 3, sends a confirmation notification of participation of the data communication to a plurality of destinations, performs data communication with destinations which reply when receiving at least one reply with respect to the confirmation notification of participation, and performs data communication after adding other destination even after the start of the data communication when receiving a reply from the other destination, wherein when ending the data communication, the control unit 7 makes the communication unit 2 transmit an end notification of the data communication to another party from which a reply for the confirmation notification of participation is not obtained among destinations to which the confirmation notification of participation was transmitted.
19 Citations
19 Claims
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1-10. -10. (canceled)
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11. A communication apparatus comprising:
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a communication unit which transmits/receives data; an input unit; and a control unit which, when a plurality of destinations are designated and start of data communication is input from said input unit, connects to a predetermined management apparatus and requests to send the plurality of destinations a confirmation notification of participation including a parameter for connection to the management apparatus via said communication unit, performs data communication with at least one destination which replies with respect to the confirmation notification of participation via said management apparatus, and performs data communication after adding other destination even after the start of the data communication when receiving a reply with respect to the confirmation notification of participation from said other destination, wherein when ending the data communication, the control unit makes said communication unit transmit an end notification of the data communication to a destination which does not participate in said data communication among destinations to which the confirmation notification of participation was transmitted. - View Dependent Claims (12, 13, 14)
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15. A communication apparatus comprising:
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a communication unit transmitting/receiving data and being capable of connecting to a predetermined management apparatus; and a control unit which, when the communication unit receives a confirmation notification of participation of data communication, connects to said management apparatus using a parameter included in the received confirmation notification of participation and performs start processing of data communication via said management apparatus, wherein said control unit does not perform the processing for the start of data communication including the connection to the management apparatus using the parameter included in the confirmation notification of participation, in a case where an end notification of the data communication has been already received when the communication unit receives the confirmation notification of participation of the data communication. - View Dependent Claims (16)
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17. A communication system configured by and including a first communication terminal and a second communication terminal performing data communication with respect to each other via a predetermined management apparatus, wherein
the first communication terminal has a first communication unit for performing data communication and a first control unit which, when said data communication is requested, connects to said management apparatus and requests to send a plurality of communication terminals including said second communication terminal a confirmation notification of participation of the data communication including a parameter for connection to the management apparatus via said first communication unit, performs data communication with at least one communication terminal which replies with respect to the confirmation notification of participation via said management apparatus, and transmits an end notification of the data communication from said first communication unit to a communication terminal which does not participate in said data communication among communication terminals to which the confirmation notification of participation was transmitted when ending the data communication, the second communication terminal has a second communication unit transmitting/receiving data and a second control unit for connecting, when the second communication unit receives a confirmation notification of participation of data communication, to said management apparatus using a parameter included in the received confirmation notification of participation, and performing start processing of the data communication among communication terminals including said first communication terminal via said management apparatus and, at the same time, replying regarding participation in the data communication via the second communication unit, and the second control unit does not perform the processing for the start of the data communication based on the received confirmation notification of participation when an end notification of the data communication has been already received when the second communication unit receives a confirmation notification of participation of the data communication.
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18. A communication method including:
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a step of requesting a predetermined management apparatus, when a plurality of communication terminals are designated and start of data communication is requested, to send the plurality of communication terminals a confirmation notification of participation of the data communication including a parameter for connection to the management apparatus; a step of performing data communication via said management apparatus with at least one communication terminal which replies with respect to the confirmation notification of participation; a step of controlling a state of participation in the data communication based on a reply with respect to the confirmation notification of participation; a step of adding other communication terminal even after the start of the data communication when receiving a reply with respect to the confirmation notification of participation from said other communication terminal; a step of transmitting an end notification of the data communication to a communication terminal which did not reply among communication terminals to which the confirmation notification of participation was transmitted when ending the data communication. - View Dependent Claims (19)
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Specification