JPH1070483A - Wrist watch type wireless device - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To provide a wristwatch-type wireless device that can prevent noise due to radiated electromagnetic waves and harmonics and can be multifunctional. A device case is formed of metal, and a digital signal processing circuit is disposed in the device case. The band 2 to be attached to the device case 1 is formed of a synthetic resin, and the antenna 5 and the high-frequency circuit 6 are arranged in the band 2. Radiation electromagnetic waves and harmonics from the digital signal processing circuit 7 can be cut off by the metal device case 1 and noise can be prevented. Since the high-frequency circuit 6 is disposed outside the device case 1, other circuits and members having other functions can be disposed in the device case 1, and the device can be multifunctional.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wristwatch-type wireless device that is convenient to carry.

[0002]

2. Description of the Related Art As a wristwatch type wireless device, a wrist pager, a wrist FM pager, a radio clock and the like are commercially available. These wristwatch-type wireless devices also need to be provided with an antenna and a wireless circuit including a high-frequency circuit for performing analog processing and a digital signal processing circuit for performing digital processing, similarly to general wireless devices. For this reason, the following structure is employed in the conventional wristwatch-type wireless device.

(A) A device case is formed of a resin that transmits radio waves, and an antenna and the above-described wireless circuit are built in the resin case. (B) The device case is formed of a metal, and the wireless circuit is arranged in the metal device case. In addition, while the band attached to the device case is formed of resin or leather, the antenna is housed in the housing, and the antenna is arranged in the band. (C) A wireless circuit is provided in a metal device case, an opening such as a hole is formed in a part of the device case, and an antenna is arranged near the opening.

[0004]

However, the above-described conventional structures have the following problems.

[0005] (1) In the structure of (a) in which the equipment case is made of resin, not only can the equipment case not be given a sense of quality, but also the decorativeness and design of the accessory are inferior and the commercial value is reduced. doing. Also, because of the watch type,
The storage capacity of the device case is limited, and a structure in which all of the antenna and the wireless circuit are built in the limited device case cannot be a device having sufficient performance and a wide range of functions. Furthermore, since the high-frequency circuit of the wireless circuit and the digital signal processing circuit are located close to each other, unnecessary radiated electromagnetic waves and harmonics from the digital signal processing circuit leak to the high-frequency circuit that performs analog processing, which has a negative effect. And noise.

(2) Built-in antenna in band (b)
According to the structure (1), the device case can be made of metal and the storage capacity can be made large, but the structure of the band including the antenna is complicated. Also, as in (1), since the high-frequency circuit is disposed close to the digital signal processing circuit in the device case, unnecessary electromagnetic radiation and harmonics from the digital signal processing circuit leak to the high-frequency circuit. , And noise.

(3) In the structure (c) in which an opening is provided in a metal device case, the antenna arrangement is limited by the opening, so that the transmission and reception performance of the antenna is restricted.
Also, as in (1), all the components are arranged in an equipment case with a limited storage volume, which not only limits the performance and the like, but also reduces unnecessary electromagnetic radiation and noise due to harmonics. Occur.

In order to solve the above problems, it is conceivable that the high-frequency circuit and the digital signal processing circuit are formed on separate substrates, and a metal electromagnetic wave shielding plate is arranged between these substrates. However, even with this structure, since these circuits are arranged close to each other, unnecessary electromagnetic waves and harmonics leak around the connections between circuits, the input / output part of radio waves, and other wiring parts. It cannot be prevented, and sufficient performance cannot be imparted as described above.

The present invention has been made in consideration of the above-described conventional problems, and can improve the sense of quality and design, and can also prevent the adverse effects and noise caused by electromagnetic waves and harmonics. It is another object of the present invention to provide a wristwatch-type wireless device that can be arranged in a plenty of accommodating space.

[0010]

In order to achieve the above object, the present invention is directed to a wristwatch-type wireless device comprising an equipment case and a band molded of synthetic resin and attached to the equipment case. , At least a flat antenna and a high-frequency circuit connected to the antenna are arranged. The invention according to claim 2 includes an equipment case molded of metal, and a band molded of synthetic resin and attached to the equipment case, and includes a flat antenna and a high-frequency circuit connected to the antenna. Are arranged inside the band, and a digital signal processing circuit connected to the high-frequency circuit is arranged inside the device case.

According to these structures, a space for accommodating the device case can be provided, and other circuits and functions can be added in the device case. In addition, since the high-frequency circuit and the digital signal processing circuit are arranged apart from each other and the device case blocks electromagnetic waves, unnecessary electromagnetic radiation and harmonics from the digital signal processing circuit do not leak to the high-frequency circuit. , Noise can be prevented. In addition, if the device case is made of metal, it is possible to give a sense of quality and improve the design.

The invention according to claim 3 is characterized in that the antenna and the high-frequency circuit are arranged inside the band in a parallel state.

Since the antenna and the high-frequency circuit are arranged in parallel, the band can be made thinner, and the feeling of wearing is improved.

The invention according to a fourth aspect is characterized in that the antenna and the high-frequency circuit are arranged inside the band in a stacked state.

By laminating the antenna and the high-frequency circuit, they are integrated, and mounting on a band becomes easy.

According to a fifth aspect of the present invention, the high-frequency circuit and the digital signal processing circuit are connected by a connecting member made of a flexible conductive plate, and the connecting member is attached to a band attaching portion for attaching the band to an equipment case. It is characterized by having been done.

Since the high-frequency circuit and the digital signal processing circuit are connected via the band mounting portion, these circuits can be arranged in a sufficiently separated state, and the adverse effects of electromagnetic wave radiation and harmonics can be reliably prevented.

According to a sixth aspect of the present invention, the antenna comprises an antenna element electrode and a ground electrode laminated with a dielectric layer interposed therebetween, and the ground electrode extends longer than the antenna element electrode. And a wiring board on which the high-frequency circuit is mounted.

Therefore, a high-frequency circuit can be arranged by utilizing a part of the antenna, and efficient arrangement is possible.

According to a seventh aspect of the present invention, the antenna has an antenna element electrode, a dielectric layer, and a ground electrode laminated in this order, and the high-frequency circuit is provided on the dielectric layer so as to be adjacent to the antenna element electrode. It is an integrated circuit provided above.

In this structure, since the high-frequency circuit is formed by an integrated circuit, the size of the high-frequency circuit can be reduced.

The invention according to claim 8 is that the antenna comprises an antenna element electrode and a ground electrode laminated with a dielectric layer interposed therebetween, and a wiring board on which the high-frequency circuit is mounted is laminated on the ground electrode. Features.

Also in this structure, it is possible to arrange a high-frequency circuit using a part of the antenna.

According to a ninth aspect of the present invention, the antenna is formed by sequentially laminating an antenna element electrode, a dielectric layer, and a ground electrode. An insulating layer is further laminated on the ground electrode. It is an integrated circuit provided over the layer.

Also in this structure, since the high-frequency circuit is formed by an integrated circuit, the size of the high-frequency circuit can be reduced.

[0026]

FIG. 1 is a schematic diagram for explaining a first basic structure of the present invention, and is attached to an equipment case 1 made of metal and opposed outer ends of the equipment case 1. FIG. The external shape of the wristwatch-type wireless device is formed by the band 2 made of the synthetic resin thus obtained. Upper part of equipment case 1
An opening is formed at the bottom (in the figure, below), and a translucent member 3 as a watch glass is fitted into the opening by fitting. A display member 4 is disposed inside the device case 1 facing the light transmitting member 3.

In this embodiment, the antenna 5, the high-frequency circuit 6, and the digital signal processing circuit 7 perform a substantial function as a wireless device, and the antenna 5 and the high-frequency circuit 6 are disposed inside the band 2. On the other hand, the digital signal processing circuit 7 is arranged in the equipment case 1.

The antenna 5 and the high-frequency circuit 6 are arranged in the band 2 in a parallel state.
The antenna 5 sends the received radio signal to the high-frequency circuit 6 and outputs the radio signal from the high-frequency circuit 6 by radio. The digital signal processing circuit 7 in the equipment case 1 is connected to the high-frequency circuit 6 in the band 2, and signal access is performed between them. The digital signal processing circuit 7 sends display data to the display member 4, whereby the display member 4 displays predetermined information.

As the high-frequency circuit 6, an appropriate one of a reception RF amplifier, a transmission power amplifier and an intermediate frequency amplifier is selected. As the digital signal processing circuit 7, a POCSAG or FLEX decoder circuit, FM
Multiplexed signal demodulation / decoding circuit, QPMA (Quadrap)
modulation and demodulation circuits such as le Phase Shift Keying) and TDMA (Time Division).
It is selected as needed from among multiple channel link control circuits such as Multiple Access).

In such a structure, since the device case made of metal blocks electromagnetic waves, the digital signal processing circuit 7
Signal nD such as harmonics and radiated electromagnetic waves generated from
Can be prevented from leaking from the device case 1 and entering the high frequency circuit 6, thereby preventing generation of noise. High frequency circuit 6
The high-frequency signal nRF such as the RF signal generated from the power supply does not leak into the device case 1, and both the high-frequency circuit 6 and the digital signal processing circuit 7 can operate without any support.

Further, since the equipment case 1 is made of metal, it can give a sense of quality and the design can be improved. Further, since only the digital signal processing circuit 7 is arranged in the equipment case, other circuits and functions can be provided. It can be accommodated in the equipment case 1. In addition, since the antenna 5 and the high-frequency circuit 6 are arranged in the band 2 in a parallel state, the thickness of the band 2 does not increase, and the feeling of wearing is improved.

FIG. 2 shows a second basic structure of the present invention, in which an antenna 5 and a high-frequency circuit 6 are arranged in a band 2, and a digital signal processing circuit 7 and a display member 4 are arranged in an equipment case 1. . In this basic structure, the antenna 5 and the high-frequency circuit 6 are stacked and connected to each other in this stacked state.

With such a structure, as in the case of the first basic structure shown in FIG. 1, the influence of signal leakage is eliminated. In particular, since the antenna 5 and the high-frequency circuit 6 are stacked, they are integrated. And can be easily mounted inside the band 2.

FIGS. 3 and 4 show an embodiment of the above-mentioned first basic structure, in which an equipment case 11 and a pair of bands 12 are shown.
It has. The device case 11 is entirely formed of metal, and in the illustrated example also serves as a watch case of a wristwatch. The end portions of the device case 11 in the 12 o'clock and 6 o'clock directions are extended, and a band attachment portion 13 is integrally formed by this extension, and the band 12 is attached to the band attachment portion 13.

Inside the equipment case 11, a circuit board 14 for controlling the operation of the whole equipment is provided.
4 is connected to a liquid crystal display member 16 via an interconnector 15. Above the device case 11 facing the liquid crystal display member 16, a light transmitting member 17 made of glass is attached. Further, a battery 18 is provided on the lower surface of the circuit board 14, and a lower portion of the battery 18 is
Has been closed by.

A push button type switch 20 is mounted on the upper surface of the equipment case 11, and a movable contact 21 of the switch 20 and a fixed contact 22 of the circuit board 14 face each other.
By operating the switch 20, functions such as wireless communication and time display can be switched.

A digital signal processing circuit 23 constituting a part of a radio circuit is arranged inside the device case 11. This digital signal processing circuit 23 is a circuit board 1
4 for accessing signals with the circuit board 14.

A pair of bands 12 are formed of synthetic resin, and each band 12 has a base end at the equipment case 11.
Is attached to the band attaching portion 13 by an attaching pin 24. An antenna 25 and a high-frequency circuit 26 are provided in a connected state inside one band 12 of the pair of bands.

The antenna 25 is formed by sandwiching a dielectric layer 28 made of an insulating material between the antenna element electrode 27 and the ground electrode 29.
Is a flat plate as a whole. In this case, the antenna element electrode 27 and the ground electrode 29 are connected via a through hole 30 formed in the dielectric layer 28. Ground electrode 29
Is longer than the antenna element electrode 27 and extends toward the device case 11.
The high frequency circuit 2 is mounted on the wiring board 31.
6 is implemented. With the arrangement via the wiring board 31 attached to the ground electrode 29 in this manner, the antenna 25 and the high-frequency circuit 26 are arranged in the band 12 in a parallel state.

The connection between the high-frequency circuit 26 and the antenna 25 is made via a relay electrode 32. The relay electrodes 32 are formed on the wiring board 31 so that a pair is located between the antenna 25 and the high-frequency circuit 26.
The terminal portions 26a from 6 are joined. On the other hand, the terminal portion 25a from the antenna element electrode 27 in the antenna 25
Is connected to the other side of the upper surface of one relay electrode 32, and a terminal portion 29a from the ground electrode 29 is connected to the lower surface of the other relay electrode 32. With these connections, the high-frequency circuit 26 and the antenna 25 are connected. Are connected.

The high-frequency circuit 26 in the band 12 is connected to the digital signal processing circuit 23 in the equipment case 11, and a wireless circuit is formed by this connection. This connection is made via the connection member 33. The connection member 33 is formed of a thin flexible conductive plate, and is attached to the band attachment portion 13 so as to be bridged between the device case 11 and the band 12.

The mounting structure of the connecting member 33 to the band mounting portion 13 is based on the device case 11 of the band 12.
The connecting member 33 is inserted into the lip b12a. Then, with the lip portion 12a in contact with the lower surface of the band mounting portion 13, the lip portion 12a is sandwiched between the back cover 19 and the mounting pin 24 is screwed into the lip portion 12a.
Is fixed to the band mounting portion 13 so that the connecting member 33 is mounted to the band mounting portion 13 together with the lip portion 12a.

The connection structure between the high-frequency circuit 26 and the digital signal processing circuit 23 by the connection member 33 is such that a relay electrode 34 is formed on the wiring board 31 on the device case 11 side, and a terminal portion from the high-frequency circuit 26 is connected to the relay electrode 34. 26 and the terminal portion 33a from the connection member 33, the relay electrode 35 is formed on the circuit board 14 in the device case 11, and the terminal portion 33 from the connection member 33 and the digital signal processing circuit 23 are formed on the relay electrode 35. This is performed by joining the terminal portions 23a from the outside.

With the above configuration, the digital signal processing circuit 23 and the high-frequency circuit 26 are separated by the metal device case 11, so that harmonics and electromagnetic wave radiation from the digital signal processing circuit 23 can be cut off. In the band 12, the antenna 25 and the high-frequency circuit 26 can be arranged in parallel.

A buckle 38 is attached to the free end of the band 12 provided with the antenna 25 and the high-frequency circuit 26, and the free end of the band 12 is detachably engaged with the buckle 38. A matching buckle receiver 39 is attached, and the entirety of the wireless device can be worn on an arm by these engagements, which is convenient for carrying.

FIG. 5 shows an example of the antenna 25. In the antenna 25, an antenna element electrode 27 and a ground electrode 29 are stacked with a dielectric layer 28 interposed therebetween, and the antenna element electrode 27 and the ground electrode 29 are electrically connected by a through hole 30. The antenna 25 having this structure is used for a high frequency band of an ultra high frequency such as VHF or an ultra high frequency such as UHF. Further, as such an antenna for use in a high frequency band, a shortened antenna such as an inverted-F micro split type antenna or a patch antenna can be used. The antenna is not limited to these, and may be a slot antenna or a loop antenna connected by combining two bands.

FIG. 6 shows another embodiment of the antenna 41 and the high-frequency circuit 45 provided in parallel in the band 12.
The antenna 41 includes an antenna element electrode 42 and a dielectric layer 43.
And a ground electrode 44 are laminated. The antenna 41 can be configured as a patch-type antenna or an inverted-F microstrip line-type antenna partially grounded depending on the dielectric constant of the dielectric layer 43.

The high frequency circuit 45 is made of gallium arsenide (GaAs).
s) A plurality of circuit elements 46 composed of semiconductor integrated circuits for microwaves such as compound semiconductors are connected by circuit wiring 47. The plurality of circuit elements 46 include transistors, resistors,
It functions as a coil, a capacitor, and the like. The high-frequency circuit 45 is connected to the antenna 41 via a connection 48 such as a printed wiring or a hand wiring.

By forming the high-frequency circuit 45 as an integrated circuit in this way, the volume becomes extremely small, so that the size can be reduced. Moreover, it can be integrated with the antenna 41, and the arrangement in the band 12 becomes easy. Further, in this embodiment, the antenna 41 can be formed from a printed wiring board, similarly to the high-frequency circuit 45, so that these can be efficiently manufactured.

FIG. 7 is a circuit diagram in which the embodiment of FIG. 6 is applied to a wireless telephone terminal.
2 is arranged in the band 12, and a digital signal processing circuit 53 subsequent to the modem circuit is provided in the metal device case 11. The high frequency circuit 52 is a power amplifier 54
a, a broadband amplifier 54b, a mixer 54c, etc., and a transmission unit 54 to which a signal from the modulator 53a of the digital signal processing circuit 53 is input, and a low noise amplifier 55a, a mixer 55b, an intermediate frequency amplifier 55c, and a digital signal And a receiving unit 55 that outputs a signal to the demodulator 53b of the processing circuit 53. A distribution amplifier 56 connected to the local oscillator 53c of the digital signal processing circuit 53 is provided between them. Further, a high-frequency circuit 52 is connected to the antenna 51 to switch between transmission and reception.
The switch 57 is provided.

FIGS. 8 and 9 show an embodiment of a second basic structure in which an antenna and a high-frequency circuit are stacked. The same members as those in FIGS. 3 and 4 are assigned the same reference numerals, and digital signal processing is performed. The circuit 23 is provided in the metal device case 11 while being mounted on the circuit board 14.

In the band 12, the antenna element electrode 2
7, an antenna 25 formed by laminating a dielectric layer 28 and a ground electrode 29 is disposed. This antenna 25
A wiring board 31 is laminated on the ground electrode 29 of this embodiment, and a high-frequency circuit 26 is mounted on a surface of the wiring board 31 opposite to the ground electrode 29.

Also in this embodiment, the connection between the antenna element electrode 27 and the ground electrode 29 is made through the through hole 30 formed in the dielectric layer 28. The connection between the high-frequency circuit 26 and the antenna element electrode 27 is performed by connecting the through hole 61 connected to the antenna element electrode 27 to the wiring board 31.
And a relay electrode 62 to which the terminal 26c of the high-frequency circuit 26 is connected is arranged on the wiring board 31 so as to be connected to the through hole 61. Further, the connection between the high-frequency circuit 26 and the ground electrode 29 is made by connecting the relay electrode 64 to which the terminal 26 d of the high-frequency circuit 26 is connected.
Is attached to the wiring board 31, and a through hole 63 corresponding to the relay electrode 63 and penetrating to the ground electrode 29 is formed in the wiring board 31.

The connection between the high-frequency circuit 26 in the band 12 and the digital signal processing circuit 23 in the equipment case 11 is made by connecting members 33 laid over the equipment case 11 and the band 12.
Done by The connection member 33 is provided inside the band 12, is connected to the high-frequency circuit 26 by a terminal 26e of the circuit 26, and is connected to the digital signal processing circuit 23 by a terminal 23a of the circuit 23. It is connected via a relay electrode 65.

FIG. 10 shows another embodiment in which an antenna and a high-frequency circuit are stacked, and corresponds to FIG. Antenna element electrode 42, dielectric layer 43, ground electrode 44
Are stacked to form the antenna 41. An insulating layer 66 is further laminated on the lower surface of the ground electrode 44 of the antenna 21, and a plurality of circuit elements 46 formed of a microwave semiconductor integrated circuit such as a gallium arsenide (GaAs) compound semiconductor are formed on the insulating layer 66. The high frequency circuit 45 is formed by these components. The plurality of circuit elements 46 function as transistors, resistors, coils, capacitors, and the like.

The connection between the high-frequency circuit 45 and the antenna 41 is not shown, but a through-hole is formed in a portion of the insulating layer 66 facing the circuit element 46 to connect with the ground electrode 44. Similarly, it is formed by forming a through hole penetrating through the insulating layer 66, the ground electrode 44, and the dielectric layer 43, and making connection with the antenna element electrode 42. Such a high-frequency circuit 45 can be manufactured by using a semi-insulating gallium arsenide compound semiconductor substrate and forming a printed circuit on this substrate.

FIGS. 11 to 13 show the structure shown in FIGS.
FIG. 10 is a circuit block diagram in the case of using the structure of FIGS. 8 and 9. In each of the drawings, each of the blocks is well known, and therefore, a name is assigned to each of the blocks and detailed description thereof is omitted. I do. Thus, 71 is an equipment case made of metal, 72 is a band made of synthetic resin, 73 is an antenna,
74 is a high-frequency circuit, and 75 is a digital signal processing circuit. FIG. 11 is a circuit block diagram of an RCC (dedicated wave) pager receiving terminal. FIG. 12 is a receiver for character data broadcasting by FM character multiplexing using a data signal as a subcarrier of FM radio broadcasting and a paging communication. FIG. 2 is a circuit block diagram of a PHS cordless telephone terminal.

[0058]

According to the present invention, since the antenna and the high-frequency circuit are arranged in a band made of synthetic resin and the digital signal processing circuit is arranged in an equipment case made of metal, unnecessary radiated electromagnetic waves from the digital signal processing circuit are provided. The noise caused by these can be prevented without leaking the high frequency and the high frequency circuit. Further, since the number of circuits arranged in the device case is reduced, other circuits and members having other functions can be arranged in the device case, and a multifunctional wireless device can be obtained. Furthermore, since the device case is formed of metal, the sense of quality and design can be improved.

[Brief description of the drawings]

FIG. 1 is a sectional view of a first basic structure of the present invention arranged in parallel.

FIG. 2 is a cross-sectional view of a second basic structure of the present invention, which is stacked and arranged.

FIG. 3 is a sectional view of an embodiment to which a first basic structure is applied.

FIG. 4 is a front view of FIG. 3;

5A is a front view of the antenna, and FIG. 5B is a cross-sectional view.

FIG. 6 is a perspective view of another embodiment to which the first basic structure is applied.

FIG. 7 is a circuit diagram in which the embodiment of FIG. 6 is applied to a wireless telephone terminal.

FIG. 8 is a sectional view of an embodiment to which the second embodiment is applied.

FIG. 9 is a front view of FIG. 8;

FIG. 10 is a perspective view of another embodiment to which the second embodiment is applied.

FIG. 11 is a circuit block diagram of a pager receiving terminal.

FIG. 12 is a circuit block diagram of a receiver for text data broadcasting and paging communication.

FIG. 13 is a circuit block diagram of a PHS cordless telephone terminal.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Device case 2 Band 3 Translucent member 4 Display member 5 Antenna 6 High frequency circuit 7 Digital signal processing circuit

────────────────────────────────────────────────── ───

[Procedure amendment]

[Submission date] October 31, 1996

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] 0029

[Correction method] Change

[Correction contents]

[0029]
The high-frequency circuit 6 includes a receiving R
An appropriate one of an F amplifier, a transmission power amplifier, an intermediate frequency amplifier, and the like is selected. As the digital signal processing circuit 7, a POCSAG or FLEX decoder circuit, an FM multiplexed signal demodulation / decoding circuit, a QPSK (Qua)
double Phase Shift Keyin
g) and TDMA (Time Div.)
It is selected as needed from among multi-channel link control circuits such as Ssion Multiple Access.

[Procedure amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0057

[Correction method] Change

[Correction contents]

FIGS. 11 to 13 show the structure shown in FIGS.
FIG. 10 is a circuit block diagram in the case of using the structure of FIGS. 8 and 9. In each of the drawings, each of the blocks is well known, and therefore, a name is assigned to each of the blocks and detailed description thereof is omitted. I do. Thus, 71 is an equipment case made of metal, 72 is a band made of synthetic resin, 73 is an antenna,
74 is a high-frequency circuit, and 75 is a digital signal processing circuit. FIG. 11 shows a subcarrier for FM radio broadcasting.
Character data by FM character multiplexing using
Receiver for data broadcasting and paging communication.
(Dedicated wave) Circuit block diagram of pager receiving terminal, FIG.
FIG. 2 is a circuit block diagram of a PHS cordless telephone terminal.

[Procedure amendment 3]

[Document name to be amended] Statement

[Correction target item name] FIG.

[Correction method] Change

[Correction contents]

FIG. 11 is a receiver for text data broadcasting and paging communication.
FIG. 3 is a circuit block diagram of FIG.

[Procedure amendment 4]

[Document name to be amended] Statement

[Correction target item name] FIG.

[Correction method] Change

[Correction contents]

FIG. 12 is a circuit block diagram of a pager receiving terminal.
You.

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁶ Identification number Agency reference number FI Technical display location H04Q 7/14 H04B 7/26 W

Claims (9)

[Claims] 1. A wristwatch-type wireless device comprising a device case and a band molded of synthetic resin and attached to the device case, wherein at least a flat antenna and a connection to the antenna are provided inside the band. Wristwatch-type wireless device, wherein a high-frequency circuit is arranged. 2. An electronic device comprising: a device case formed of metal; and a band formed of synthetic resin and attached to the device case, wherein a flat antenna and a high-frequency circuit connected to the antenna are connected to the band. A wristwatch-type wireless device, wherein a digital signal processing circuit disposed inside and connected to the high-frequency circuit is disposed inside the device case. 3. The wristwatch-type wireless device according to claim 1, wherein the antenna and the high-frequency circuit are arranged inside the band in a parallel state. 4. The wristwatch-type wireless device according to claim 1, wherein the antenna and the high-frequency circuit are arranged inside the band in a stacked state. 5. The high-frequency circuit and the digital signal processing circuit are connected by a connecting member made of a flexible conductive plate, and the connecting member is attached to a band attaching portion for attaching the band to an equipment case. The wristwatch-type wireless device according to any one of claims 2 to 4, wherein: 6. The antenna includes an antenna element electrode and a ground electrode stacked with a dielectric layer interposed therebetween, wherein the ground electrode extends longer than the antenna element electrode, and the extended portion includes the high-frequency circuit. 6. A wiring board on which is mounted, is mounted.
The watch-side wireless device according to any one of the above. 7. The antenna has an antenna element electrode, a dielectric layer, and a ground electrode laminated in this order, and the high-frequency circuit is provided on the dielectric layer so as to be adjacent to the antenna element electrode. The wristwatch-type wireless device according to claim 1, wherein the wireless device is an integrated circuit. 8. The antenna according to claim 1, wherein the antenna includes an antenna element electrode and a ground electrode laminated with a dielectric layer interposed therebetween, and a wiring board on which the high-frequency circuit is mounted is laminated on the ground electrode. The wristwatch-type wireless device according to any one of 1, 2, and 4. 9. The antenna according to claim 1, wherein an antenna element electrode, a dielectric layer, and a ground electrode are sequentially laminated, an insulating layer is further laminated on the ground electrode, and the high-frequency circuit is provided on the insulating layer. The wristwatch-type wireless device according to claim 1, wherein the wristwatch-type wireless device is an integrated circuit.