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Communication device

A technology for communication devices and communication partners, applied in connection devices, antenna support/mounting devices, sustainable communication technology, etc., can solve the problems of shortening the range that cannot be prevented, weakening of electric field signals, etc., and achieve the reduction of the prevention range, Effect of Suppressing Changes in Resonant Frequency

Inactive Publication Date: 2011-09-21
SONY CORP
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  • Claims
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Problems solved by technology

However, the electric field signal is weakened in the process of reaching the surface of the case, and thus cannot prevent the shortening of the range in which communication can be performed

Method used

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Embodiment Construction

[0031] Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[0032] figure 1 The configuration of the proximity wireless transmission system according to the weak UWB communication method using electric field coupling is schematically shown. In the drawings, a transmitter 10 and a receiver 20 including coupling electrodes 14 and 24 for transmitting and receiving, respectively, therein are arranged to have a gap of, for example, about 3 cm (or about half the wavelength of the frequency band used). face each other in the state, and achieve electric field coupling. If a transmission request from a higher-level application is received, the transmission circuit unit 11 on the transmitter side generates a high-frequency transmission signal (such as a UWB signal) based on the transmitted data, and the generated signal is sent from the transmission electrode 14 as an electric field signal. propagates to the receiving electrode 24. The...

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Abstract

A communication device includes a case, a high frequency coupler that is disposed inwards from the surface of the case so as to be spaced apart from the surface and transmits and receives a signal of an induction electric field, and a surface wave transmission path that is disposed between the radiation surface of the induction electric field of the high frequency coupler and the surface of the case.

Description

technical field [0001] The present invention relates to a communication device that transmits large-capacity data at short distances by a weak UWB method using a high-frequency band, and more particularly, to a communication device that employs weak UWB communication using electric field coupling and operates by a device with a large The dielectric constant of the fluid surrounding the case suppresses changes in the resonant frequency. Background technique [0002] Non-contact communication methods have been widely used as a medium for authentication information or other value information such as electronic money. Furthermore, in recent years, application examples of new non-contact communication systems include transmission of large-capacity data (such as downloading or streaming playback of videos or music, etc.). Large-volume data transmission is done by a single user, and is also preferably done with access time that feels the same as authentication and billing processi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B5/02H04B1/7163H01Q1/22H01P5/00
CPCH01P5/187H04B5/0012H04B1/7163Y02D30/70
Inventor 和城贤典
Owner SONY CORP
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