Communication system and communication apparatus

A communication system and communication device technology, applied in the field of communication systems, can solve problems such as inconvenient users, inability to communicate directly, and limit the degree of freedom of layout, and achieve the effects of flexible design, increased degrees of freedom, and expanded distances

Inactive Publication Date: 2008-03-19
SONY CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order for the coupling electrodes to be sufficiently close to each other, it is necessary to perform delicate alignment between the electrodes, and it is inconvenient for the user if this position must be maintained during data communication
In addition, over long distances, direct communication between transmitters and receivers i...

Method used

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  • Communication system and communication apparatus
  • Communication system and communication apparatus
  • Communication system and communication apparatus

Examples

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Embodiment Construction

[0100] Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

[0101] The invention relates to a communication system for data transmission between information devices by using an electrostatic field or an induced electric field. According to the communication method based on an electrostatic field or an induced electric field, when there is no communication partner nearby, there is no coupling relationship and no radio waves are emitted, so it does not interfere with other communication systems. In addition, the coupler does not receive radio waves even if radio waves are transmitted from a distant place, so there is no interference from other communication systems.

[0102] In addition, in conventional radio communication using an antenna, the electric field strength of a radiated electric field is inversely proportional to the distance, whereas in an induced electric field, the electric field strength is attenuated in ...

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Abstract

A communication system includes the following elements: a transmitter including a transmission circuit unit configured to generate an RF signal for transmitting data and an electric-field-coupling antenna configured to transmit the RF signal as an electrostatic field; a receiver including an electric-field-coupling antenna and a reception circuit unit configured to receive and process the RF signal received by the electric-field-coupling antenna; and a surface-wave propagation medium configured to provide a surface-wave transmission line to transmit a surface wave emanating from the electric-field-coupling antenna of the transmitter with low propagation loss.

Description

technical field [0001] The present invention relates to a communication system for large-capacity data communication between information devices, and in particular to a communication system that uses electrostatic fields (quasi-electrostatic fields) or induced electric fields between information devices to perform data communication without interference with other communication systems system. [0002] More specifically, the present invention relates to a communication system that realizes large-capacity transmission of high-frequency signals through electric field coupling, and particularly relates to enlarging the distance between electrodes of transmitters and receivers for electric field coupling, making the configuration of transmitters and receivers, communication devices Design of flexible communication systems. Background technique [0003] Recently, AV (Audio Visual: audio-visual) cables and USB (Universal Serial Bus: Universal Serial Bus) cables are used instead o...

Claims

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Application Information

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IPC IPC(8): H04B5/02H04L12/28
Inventor 和城贤典
Owner SONY CORP
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