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Multicast system, communication terminal, and multicast device

A communication terminal and equipment technology, applied in the field of multicast systems, can solve the problem of inability to multicast voice message communication terminals, etc.

Inactive Publication Date: 2007-12-26
LENOVO INNOVATIONS LTD HONG KONG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the above multicast method cannot multicast the voice message to all communication terminals of the specified group in real time

Method used

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  • Multicast system, communication terminal, and multicast device

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Embodiment Construction

[0011] Preferred embodiments of the present invention will now be described below. The Figure is a block diagram of an embodiment of the multicast system of the present invention. This multicast system basically includes a communication terminal 100 such as a mobile phone or a home computer, and a multicast device 110 . Communication terminal 100 is connected to multicast device 110 via network 120 . Also, a large number of communication terminals are connected to the multicast device 110 via the network 120 in a similar manner. Communication terminal 100 comprises: information receiving unit 101, is used for receiving the information (for example the voice of caller or callee) from multicast equipment 110; voice) to the multicast device 110. A speaker 102 is connected to the information receiving unit 101 . The information transmission unit 103 is connected to a microphone 104 and a switch 105 which allows transmission of information only during its on state. Communicati...

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Abstract

A multicast system includes a multicast device and a communication terminal such as a mobile phone. The mobile phone has a switch, and voice information can be transmitted only while the switch is on. When the voice information is multicast to a plurality of mobile phones, the mobile phone in question transmits the telephone numbers of the plurality of mobile phones to which the voice information is to be multicast, and a group code which specifies the group of the mobile phones, to the multicast device via a network. The multicast device stores, in a storage unit, the group code and the telephone numbers of the mobile phones included in the group, and at the same time, multicasts the received voice information to these mobile phones.

Description

technical field [0001] The present invention relates to a multicast system, and more particularly, to a multicast system in which three or more callers can converse in real time using a mobile terminal such as a mobile phone. Background technique [0002] Conventionally, in order to have a conversation using a mobile terminal such as a mobile phone, a service such as person-to-person calling or a three-way call using a three-way calling service provided by a switching device may be used. The caller needs to input the callee's phone number into the communication terminal and transmit the phone number to the switching device. Basically, the caller and the callee can speak at the same time. [0003] On the other hand, there are many known methods for performing multicast communication in which voice is delivered to a plurality of callees by using a communication terminal. Users of communication terminals can utilize multicast communication services provided by network operato...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B7/26H04M3/42H04L12/18H04M3/56H04W4/06H04W88/02
CPCH04L12/1818H04W76/002H04L12/189H04M2203/205H04W4/06H04M3/567H04W88/02H04W76/40
Inventor 岛嵜泉
Owner LENOVO INNOVATIONS LTD HONG KONG