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Mobile device

A technology of portable equipment and transmission medium, applied in electrical components, transmission systems, etc., can solve the problems of inability to communicate, cannot obtain capacitive coupling, and communication performance is not good enough, and achieve the effect of improving communication quality

Inactive Publication Date: 2010-11-24
ALPS ALPINE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, when a portable device with such an electrode configuration is held in hand, communication cannot be performed because the outer electrode and the propagation medium side electrode are short-circuited by the held hand; There will be a gap between the electrode on the medium side and the palm, and sufficient capacitive coupling cannot be obtained, and the communication performance is not good enough
In addition, in the method of newly installing the transmitting and receiving electrodes for electric field communication, the structure in which the transmitting and receiving electrodes protrude greatly from the portable device when used for communication requires a new connection mechanism that can rotate or slide, and in Although it becomes a storage structure when the transmitting and receiving electrodes are not used, even in this state, the thickness will increase so that the influence on the design (design) cannot be avoided, and it will also cause problems of cost and weight increase

Method used

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Effect test

Embodiment approach 1

[0030] figure 1 It is a schematic configuration diagram showing an electric field communication system using a portable device according to an embodiment of the present invention. figure 1 The electric field communication system shown is mainly composed of the following components: a transmitter 1 that modulates and converts information signals into electric field signals and transmits signals through the transmitting electrode 11, a transmission medium 2 such as the human body and space that transmit information signals through the electric field signals, and detection A receiver 3 that outputs the electric field signal passing through the propagation medium 2 and demodulates the electric field signal into an information signal. Here, the propagation medium 2 is assumed to be a human body, and the receiver 3 is a portable device.

[0031] The portable device 3 has a transmission medium side electrode (body side electrode) 31 for receiving an electric field from the transmi...

Embodiment approach 2

[0043] In the present embodiment, a description will be given of a case in which switching is realized by switching control: on the opposite surface (bottom surface) 36 opposite to the display surface 35, a propagation medium side electrode for electric field communication is further provided, and when a predetermined time elapses, the portable device 3. When there is still no operation, the propagation medium side electrode arranged on the bottom surface 36 will be used as the propagation medium side electrode for electric field communication; if there is operation on the portable device 3, then the propagation medium side electrode arranged on the side surface 37 will be used as the electric field communication electrode. Use the propagation medium side electrode. That is, in this embodiment, if Figure 5 As shown in (a), as in Embodiment 1, the display surface is set as the upper surface 35, the outer electrode 42 for human body communication is arranged on the upper surfac...

Embodiment approach 3

[0051] In the present embodiment, a description will be given of a case where switching is realized by switching control: there is a detection unit for detecting whether the portable device 3 is held, and an electric field communication is further provided on the opposite surface (bottom surface) 36 opposite to the display surface 35. If the portable device 3 is not detected and held, the propagation medium side electrode provided on the bottom surface 36 is used as the propagation medium side electrode for electric field communication; if the portable device 3 is detected and held, use The propagation medium side electrode provided on the side surface 37 serves as a propagation medium side electrode for electric field communication. That is, in this embodiment, if Figure 5 As shown in (a), it is also the same as Embodiment 1. The display surface is the upper surface 35, the outer electrode 42 for human body communication is arranged on the upper surface 35, and the human bod...

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Abstract

It is possible to provide a mobile device which can improve communication quality when the device is held without changing the dominant design of the mobile device. A mobile device (3) functions as a transmitter and a receiver in an electric field communication for transmission and reception of an information signal converted into an electric field signal via a human body (2). The mobile device (3) has an external shape of a substantially hexahedron having side faces (37) and a display surface (35) where information can be viewed. An external electrode (42) for electric field communication isprovided on the display surface (35). A human body side electrode (43) for electric field communication is provided on at least one of the side faces (37).

Description

technical field [0001] The present invention relates to a portable device used in electric field communication for sending and receiving information signals through a propagation medium such as a human body or space. Background technique [0002] Regarding a communication system for transmitting and receiving through a propagation medium (mainly a human body), Patent Document 1 and the like disclose a communication method using an electric field. In Patent Document 1, such as Figure 11 As shown, the transmitter and receiver each carry a pair of electrodes, namely a pair consisting of a body-side (inner) electrode 111 and an outer (outer) electrode 113 . The body side (inner) electrode 111 is capacitively coupled to the body 112 in close contact, and the outer (outer) electrode 113 is oriented so that the coupling to the indoor ground is higher than that of the body side (inner) electrode. Such an electrode pair, by Figure 11 It can be seen that a parallel plate configurat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B13/00
CPCH04B13/005
Inventor 蛇口广行松田重俊芳贺宣明
Owner ALPS ALPINE CO LTD
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