JP2000341018A - Antenna for portable information terminal with built in radio equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an antenna for a portable information terminal with a built in radio equipment with excellent portability, radio sensitivity and immunity to noise. SOLUTION: An openable/closable structure is provided for a cover of a radio equipment 2 in a portable information terminal 1 having the built-in or externally mounted radio equipment 2, the cover is closed when the terminal is not in use to improve the portability and the angle of the cover can freely be changed depending on a state of a radio wave when the terminal is in use so that an antenna 3 is built in the cover. Thus, the portability can be enhanced and the angle can be changed depending on a state of the radio wave so as to obtain optimum sensitivity.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an antenna structure of a portable information terminal having a built-in wireless device or an external wireless device, and more particularly, to a structure built in a cover portion of the wireless device so as to be freely opened and closed. is there.

[0002]

2. Description of the Related Art Conventionally, as an antenna structure of a portable information terminal with a built-in wireless device, (1) an antenna built in an LCD panel, (2) a whip antenna protruding from a main body,
(3) Three types have been known, such as a PC card integrated type that is inserted into a PCMCIA socket.

[0003]

However, (1)
As for the antenna with built-in LCD panel, the condition of the radio wave and the visibility of the screen are not always the same, it is difficult to obtain the optimum sensitivity in the most visible state of the screen, and the influence of the noise emitted from the LCD There was a problem that it was easy to receive.

[0004] The whip antenna type of (2) has a problem that the antenna projects outside and may become a hindrance when being carried or the antenna may be broken by being hooked.

[0005] In addition, the PC card type of (3) has a problem that it is not excellent in portability since it is necessary to carry it separately when carrying it.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional problems, and an object of the present invention is to provide an antenna for a portable information terminal with a built-in radio, which is excellent in portability, radio sensitivity and influence on noise. I do.

[0007]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention comprises an antenna in a cover plate having a hinge structure which can be opened and closed, and has a structure which can be closed so as not to be obstructed when being carried. Is to be improved.

Further, the angle can be changed in any manner depending on the radio wave condition at the time of use so as to obtain the optimum sensitivity.

Furthermore, the noise from the LCD is hardly received by separating the antenna from the LCD.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention according to claim 1 of the present invention relates to a portable information terminal having a built-in or external wireless device, wherein the lid of the wireless device has an opening / closing structure, and the lid is closed when not in use. To improve the portability, and in use, it is possible to freely change the angle of the lid depending on the condition of radio waves, so that an antenna for a wireless device built-in type portable information terminal built in the lid portion. There is an effect that the portability can be improved and the angle can be changed in any way to obtain the optimum sensitivity depending on the radio wave condition at the time of use.

According to a second aspect of the present invention, there is provided a portable information device characterized in that a flat antenna which can be opened and closed by being attached to a main body is provided separately from a main body cover which is attached to the main body so as to be openable and closable. This has the effect of improving portability in a portable information device.

According to a third aspect of the present invention, a liquid crystal display device is provided on a main body cover.
The portable information device described in (1) above has an effect that noise from the LCD can be reduced by separating the antenna from the LCD in the portable information device.

According to a fourth aspect of the present invention, a notch is provided in a part of the main body cover, and a flat antenna which can be opened and closed is provided at a position corresponding to the notch.
Alternatively, the portable information device according to any one of claims 3 and 4 has an effect that portability can be improved in the portable information device.

According to a fifth aspect of the present invention, a wireless module unit and a flat antenna that can be opened and closed are provided on a housing of the wireless module unit, and the wireless module unit is detachably attached to a main body. The portable information device is characterized by having an effect that portability can be improved in the portable information device.

According to a sixth aspect of the present invention, a notch is provided in a part of the housing of the main body, and the wireless module is detachably attached to the main body at a position corresponding to the notch. The portable information device according to any one of claims 2 to 5, wherein the wireless module unit can be shared with another owner of the portable information terminal having the same structure in the portable information device. Has an action.

Hereinafter, an embodiment of the present invention will be described with reference to FIG.
This will be described with reference to FIG.

FIG. 1 shows a configuration of a portable information terminal with a built-in wireless device according to an embodiment of the present invention, in which a wireless device 2 is externally attached to a portable information terminal (PC) 1.

The external wireless device 2 has a structure as shown in FIG. 2, and the antenna 3 is built in a lid portion with a hinge 4 and can be opened and closed.

FIG. 3 shows a state in which the antenna 3 is folded when the portable information terminal with a built-in wireless device according to the embodiment of the present invention is carried and not used. ) Can be maintained.

On the other hand, FIG. 1 shows a state in which the antenna 3 is opened when the portable information terminal with a built-in wireless device according to the embodiment of the present invention is used. The antenna 3 has an opening angle of 5
Can be freely determined, and an optimum state of the receiving sensitivity can be created.

Further, as shown in FIG. 1, the distance 6 between the LCD and the antenna 3 can be maintained as compared with the built-in LCD type, so that there is an effect that noise generated from the LCD is hardly received.

Therefore, according to the present invention, not only the portability of the portable information terminal with a built-in wireless device is improved, but also the antenna angle is adjusted according to the radio wave condition at the time of use.
An optimum state can be created and the influence of noise from the LCD can be minimized, so that data communication can be performed comfortably.

FIG. 1 shows an example of a notebook personal computer in which a keyboard is arranged on the housing of the main body and an LCD is provided on the main body cover. A portable information terminal in which the cover is merely a cover may be used.

Further, according to the present invention, a notch is provided in a part of the body cover, and a flat antenna which can be opened and closed is provided at a position corresponding to the notch. It has the advantage of being portable because it can be stored inside.

Also, in the state of waiting for an incoming call, only the flat antenna smaller than the main body cover needs to be opened while the main body cover is closed, so that even when used outdoors, dust on the keyboard portion of the main body may occur. There is an effect that it can be used without entering.

Further, according to the present invention, a flat antenna that can be opened and closed is provided on the housing of the wireless module unit, and the wireless module unit is detachably attached to the main body. There is an advantage that it can be shared with the owner of the portable information terminal.

[0027]

As described above, the antenna of the portable information terminal with a built-in wireless device according to the present invention can be folded and stored when it is carried or not used, and when it is used, the antenna angle according to the surrounding electric field situation. And the structure is hardly affected by noise coming from the LCD of the personal computer, so that good data communication can be realized.

[Brief description of the drawings]

FIG. 1 is a diagram showing a state when a portable information terminal with a built-in wireless device according to an embodiment of the present invention is used;

FIG. 2 is a diagram showing a configuration of a wireless module externally attached to the portable information terminal with a built-in wireless device according to the embodiment of the present invention;

FIG. 3 is a diagram showing a state when the portable information terminal with a built-in wireless device according to the embodiment of the present invention is carried or not used,

FIG. 4 is an exploded perspective view showing the internal structure of a wireless module externally attached to the portable information terminal with a built-in wireless device according to the embodiment of the present invention.

[Explanation of symbols]

 Reference Signs List 1 portable information terminal 2 external wireless device (module) 3 antenna 4 hinge 5 antenna opening / closing angle 6 distance from LCD

Claims (6)

[Claims] 1. A portable information terminal having a built-in or external wireless device, wherein the lid of the wireless device has an opening / closing structure, and when not in use, the lid is closed to improve portability. An antenna for a portable information terminal with a built-in wireless device, which is built in the lid portion so that the angle of the lid can be freely changed depending on the situation. 2. A portable information device having a flat antenna which is attached to a main body and which can be opened and closed, separately from a main body cover which is attached to the main body so as to be openable and closable. 3. The portable information device according to claim 2, wherein a liquid crystal display device is provided on the main body cover. 4. A notch is provided in a part of the main body cover,
The portable information device according to claim 2, wherein a flat antenna that can be opened and closed is provided at a position corresponding to the notch. 5. A portable information device comprising: a wireless module portion; and a flat antenna that can be opened and closed on a housing of the wireless module portion, and the wireless module portion is detachably attached to a main body. 6. A notch is provided in a part of a housing of a main body,
The portable information device according to any one of claims 2 to 5, wherein a wireless module unit is detachably attached to the main body at a position corresponding to the notch.