JPH06291687A - Radio receiver - Google Patents

Abstract

PURPOSE:To satisfy the reception performance of the radio receiver such as a pager with a lid according to the use state judging from the opening and closure of the lid without making the product thick or large in shape size. CONSTITUTION:The radio receiver 1 equipped with a case main body 2 and a lid body 3 coupled pivotally with the case main body 2 is constituted by providing antenna members 13, 14, and 15 which are electrically connected to the case body 2 and lid body 3 mutually by the pivotal coupling part 5. Then the receiver is equipped with a lock means 10 which electrically connect the antenna members 13, 14, and 15 to one another by engaging the lid body 3 with the case main body 2 one over the other. The antenna members serve as a loop antenna having the gain of human body effect while the lid body 3 is closed, or as a dipole antenna when the lid body 3 is opened.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a radio receiver such as a pager with a lid, and more particularly to the structure of its antenna.

[0002]

2. Description of the Related Art A pager, which informs that a telephone contact is required by a calling signal received by an antenna by means of a notification sound, lighting of a display or vibration, is widely used by companies and individuals. Further, a pager is also widely used, which displays a telephone number, a contact name, a contact time, etc. of a telephone contact by adding a message to a call signal and transmitting the message. And the traditional pager
Most of them use a loop antenna as an antenna. The structure of the loop antenna depends on the product shape of the pager because the antenna efficiency is determined in proportion to the opening area of the loop.

[0003]

By the way, when it is attempted to realize a thin pager such as a card type, it becomes difficult to secure an antenna loop area, and the product performance (especially reception sensitivity) tends to be slightly inferior. Also, when trying to realize an electronic notebook type lidded pager in which a display unit for messages and the like and a switch unit are separated, for example, when an antenna is formed on one of them, the total thickness is reduced,
The height of the antenna is limited as in the card type pager, and the above-mentioned problems occur.

Therefore, an object of the present invention is to provide a radio receiver which can satisfy the receiving performance according to the usage state by opening and closing the lid without increasing the thickness and shape of the product.

[0005]

In order to solve the above problems, the present invention provides a radio receiver comprising a case body and a lid body pivotally coupled to the case body. An antenna member is provided on each of the lid and the lid, and when the lid is placed on the case main body, a connecting means for electrically connecting the antenna members to each other is provided. The connection means is, specifically,
It is a lock member that locks the lid body in a state of being stacked on the case body.

[0006]

When the lid is opened, the antenna members provided on the case body and the lid are dipole antennas,
In the state where the lid is closed, each antenna member becomes a loop antenna in which the other ends are electrically connected to each other via the lock member.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a radio receiver according to the present invention will be described below with reference to FIGS. First, in FIGS. 1 and 2 showing a lid open state of a pager 1 with a lid as an example of a wireless receiver to which the present invention is applied, 2 is a case body, 3 is a lid, 4 is a battery accommodating portion, and 5 is a pivot. A coupling unit (tilt unit), 6 a first key input unit, 7 a liquid crystal display unit,
Reference numeral 8 is a second key input portion, 9 is an RF substrate, 11 is an opening / closing knob, 12 is a hook portion, and 13, 14 and 15 are antenna members.

As shown in the figure, the lidded pager 1 is rotatably pivotally attached to the case body 2 and the lid body 3 by a tilt unit 5 which can freely fix the opening / closing angle with the center of the battery housing 4 as a fulcrum. The first key input unit 6 having a large number of data input keys is mounted on the case body 2,
This is an electronic notebook type which is equipped with a liquid crystal display section 7 for displaying message information and the like and has high functions.
A second key input unit 8 having a plurality of function keys is further mounted on the lid body 3, and inside the case body 2, a circuit component forming a wireless unit is mounted on the right side in the drawing. The RF board 9 is further mounted. Also, the case body 2
The lid 3 is provided with an opening / closing knob 11 and a hook member 12 made of a conductive metal that constitute the locking means 10 shown in FIG.

Then, inside the case body 2, the RF
An antenna member 13 made of a conductive metal plate that connects between the substrate 9 and the opening / closing knob 11 is mounted, and one hinge plate 5a made of a conductive metal plate that constitutes the tilt unit 5 and the RF substrate. An antenna member 14 which is also made of a conductive metal plate and which is connected to 9 is mounted. Further, inside the lid body 3, an antenna member using a plate antenna made of a conductive metal plate that connects between the other hinge plate 5b made of a conductive metal plate that constitutes the tilt unit 5 and the hook portion 12 is provided. 15
Has been implemented.

That is, with respect to the case main body 2 side, one end of the antenna member 13 is soldered to the RF substrate 9, and the other end of the antenna member 13 is screwed to the opening / closing knob 11 and the other antenna member 14 is attached. RF board 9 at one end
Then, the other end of the antenna member 14 is screwed to the hinge plate 5a. On the lid 3 side, one end of another antenna member 15 is screwed to the hinge plate 5b made of a conductive metal plate, and the other end of this antenna member 15 is screwed to the hook portion 12. As a result, the antenna member 15 on the side of the lid 3 has the hinge plate 5
The antenna member 14 on the side of the case main body 2 is electrically connected to the antenna member 14 via a and 5b.

According to the pager 1 with a lid having the above antenna structure, as shown in FIGS. 1 and 2, the lid 3 is rotated by the tilt unit 5 to be opened with respect to the case body 2, and the key input portion 6 and When the liquid crystal display unit 7 is visible, the antenna members 13, 14, 15 are dipole antennas having the opening / closing knob 11 as one end and the hook portion 12 as the other end. Therefore, when the pager 1 with the lid is opened and used on a desk, the calling signal and the like of the user can be received by the dipole antenna.

In the closed state in which the lid 3 is rotated and stacked on the case body 2 by the tilt unit 5 and the hook portion 12 of the opening / closing knob 1 is hooked and locked, as shown in FIG. The members 13, 14, and 15 are the opening / closing knobs 11.
Then, the loop antenna is formed by being electrically connected through the hook portion 12. Therefore, when the pager 1 with the lid is put on a human body by being put in a pocket or the like when being carried, the loop antenna having the human body effect and improved reception performance can receive its own calling signal or the like.

Although a pager is used in the above embodiments, the present invention is not limited to this.
It may be another wireless receiver, that is, a communication device having a function of receiving a wireless signal. Further, it is needless to say that the location of the antenna member, the connection structure, and the like are arbitrary, and other specific detailed structures and the like can be appropriately changed.

[0014]

As described above, according to the radio receiver of the present invention, the antenna configuration can be changed according to the opening / closing of the lid, so that the receiving performance can be satisfied depending on the usage condition. That is, when the lid is closed, the loop antenna has a human body effect gain. For example, in the case of the pager according to the third aspect, good reception performance can be obtained when the pager is carried, especially in a pocket. . Further, when the lid is open, the antenna becomes a dipole antenna, and in the case of the pager, good reception performance can be obtained when the pager is placed on a desk for use.

[Brief description of drawings]

FIG. 1 is a schematic front view of a pager with a lid as an example of a wireless receiver to which the present invention is applied, in a state where the lid is open.

FIG. 2 is a schematic side view of the same when viewed from the side with the lid opened.

FIG. 3 is a schematic side view showing a lid closed state.

[Explanation of symbols]

 1 wireless receiver (pager with lid) 2 case body 3 lid 5 pivotally connected part (tilt unit) 6 first key input part 7 liquid crystal display part 9 RF board 10 locking means 13, 14, 15 antenna member

Claims (3)

[Claims] 1. A radio receiver comprising a case body and a lid body pivotally coupled to the case body, wherein the case body and the lid body are respectively provided with antenna members, and the case body is provided. A wireless receiver comprising a connecting means for electrically connecting the antenna members to each other when the lid is placed on the main body. 2. The wireless receiver according to claim 1, wherein the connecting means is a lock member that locks the lid body in a state of being stacked on the case body. 3. A key input section is provided on the case body side,
The radio receiver according to claim 1, wherein the radio receiver is a pager having a liquid crystal display section on the lid side.