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Relay unit, communication terminal and communication method

A technology of communication terminal and relay device, applied in image communication, electrical components, selective content distribution, etc., to achieve the effect of real-time two-way communication

Inactive Publication Date: 2013-05-01
KEIO UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] However, the two-way communication using the transmission method described in Patent Document 1 is a technology that is performed between the sending side and the receiving side of data, that is, between the broadcasting station and the viewer, and there is a problem that simultaneous two-way communication with a specific object cannot be performed. The so-called real-time communication problem

Method used

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  • Relay unit, communication terminal and communication method
  • Relay unit, communication terminal and communication method
  • Relay unit, communication terminal and communication method

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Embodiment Construction

[0047] Hereinafter, preferred embodiments of the relay device, communication terminal, and communication method related to the present invention will be described in detail with reference to the accompanying drawings.

[0048] (Overall configuration of the two-way communication system)

[0049] figure 1 It is a block diagram showing the overall configuration of the two-way communication system according to the embodiment of the present invention. The two-way communication system 100 includes a relay device 110 (for example, installed in a broadcasting station or other institution equipped with a broadcast network 102 for transmitting broadcast waves) and a communication terminal 120 (communication terminal 120A and communication terminal 120B), through the communication network 101 and the broadcast Network 102 performs bidirectional communication between communication terminals 120 . The communication network 101 refers to a fixed network, a mobile phone network, a wireles...

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Abstract

A relay apparatus (110) includes a communication I / F (113) that receives an IP packet from a source terminal (120A) via a communication network (101), a broadcast wave interface (114) that transmits the IP packet received via the communication network I / F (113) to a destination terminal (120B) by a digital broadcast wave, and a receiving and transmitting unit (111) that transmits the IP packet that is received by the communication I / F (113) and transmitted by the transmitting communication terminal (120A) to the destination terminal (120B) via the broadcast wave I / F (114).

Description

technical field [0001] The invention relates to a relay device, a communication terminal and a communication method for real-time communication with a specific object by using broadcast waves. Background technique [0002] Conventionally, fixed networks, mobile networks, wireless LAN (Local Area Network) networks, and the like have been used as communication paths for bidirectional communication between communication terminals. However, in recent years, as the demand for communication has increased, it has been required to increase the capacity of each communication path and to expand the range, and the construction of optical fibers capable of data multiplexing and the installation of repeaters for mobile networks and wireless LAN networks are being developed. . [0003] On the other hand, as a new communication path for two-way communication, a technology using digital broadcast waves is being studied. Conventionally, broadcast waves have transmitted data such as content...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/66H04N21/2381H04N21/414H04N21/4788H04N21/61H04N21/643H04N7/16
CPCH04L12/66H04N21/41407H04N21/6112H04N21/4788H04N21/2381H04N21/64322H04N21/6175H04N21/647
Inventor 木村宽明猪泽伸悟石田刚朗片冈广太郎
Owner KEIO UNIV