JP2000147169A - Wrist watch provided with antenna - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make an antenna hardly receive the effect of human body without enlarging the watch even if a required antenna is provided to a wrist watch. SOLUTION: An indication slide part 11 is formed in the upper part of an antenna part 14 contained in the main body part 10 of the wrist watch and an indication part 12 is slidably provided against the indication slide part 11. For making the antenna part 14 operable, it is enough that the indication part 12 is slid and the antenna part 14 is exposed. By this constitution, the wrist watch provided with an antenna part 14 can be positioned away from wrist.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an antenna provided in a wristwatch which also serves as a radio.

[0002]

2. Description of the Related Art In recent years, it has been possible to reduce the size of a transceiver due to the development of technology. Particularly, in the case of a receiver, a receiver that can be worn on an arm or the like has been proposed. A wristwatch to be worn on the wrist is small, lightweight, and excellent in portability, and therefore, some wristwatches have been proposed as wristwatches having a built-in radio. For example,
Japanese Patent Application Laid-Open No. 9-36651 discloses a wristwatch-type portable wireless device.
A shaped antenna is provided adjacent to the display.

[0003]

However, in the above-mentioned conventional wristwatch which also serves as a radio, since the inverted F-type antenna is used, the structure of the antenna becomes large, and the wristwatch is provided adjacent to the display section. Therefore, there is a problem that the size of the wristwatch increases. It has also been customary to provide a wristwatch with a built-in antenna in the band where the wrist is worn.However, since the band is mounted so as to be in close contact with the wrist, the built-in antenna in the band is not suitable for the human body. There is a problem that the performance is deteriorated due to the influence.

Accordingly, the present invention is to provide a wristwatch which also has an antenna which is hardly affected by the human body even if the necessary antenna is provided in the wristwatch which is also used as a wireless device. It is an object.

[0005]

In order to achieve the above object, a wristwatch having a first antenna according to the present invention comprises: a main body having a clock function portion housed therein and having an opening formed on one surface; To face the opening of the main body, an antenna unit having at least a planar antenna housed in the main body, clock information, and information obtained by processing a signal received by the antenna are displayed. A display unit slidably attached to the antenna unit, wherein an upper part of the antenna unit is covered by the display unit, and the display unit slides with respect to the antenna unit. Are exposed and operable.

A wristwatch provided with a second antenna capable of achieving the above object has a main body section in which a clock function section is housed and an opening is provided on one side, clock information, and an antenna section. Along with displaying the information obtained by processing the received signal, and facing the opening of the main body, a display unit housed in the main body, and slidably attached to the display unit, And an antenna unit having at least a planar antenna, and a display surface of the display unit is covered by the antenna unit,
The display surface of the display unit is exposed by sliding the antenna unit with respect to the display unit.

Further, in the wristwatch provided with the first and second antennas, a band portion for attaching the main body portion to an object to be mounted is provided on both sides of the main body portion, and the display portion or the antenna portion is provided. May be slidable in the extending direction of the band portion, or may be slidable in a direction substantially orthogonal to the extending direction of the band portion.

According to the present invention, the antenna can be exposed by sliding the display unit, or the display unit can be exposed by sliding the antenna unit.
The size of the entire wristwatch can be reduced. In this case, the antenna is located far from the human body,
The antenna unit can be made less susceptible to the influence of the human body. Furthermore, since the planar antenna constituting the antenna unit can be an antenna capable of receiving circularly polarized waves, it can be applied to a wireless system for satellite communication. For example, assuming a system for receiving a GPS signal from a GPS satellite, a wristwatch equipped with the antenna of the present invention can be used as a receiver for a portable navigation system. It can be a mobile phone.

[0009]

1A and 1B show an example of the configuration of an embodiment of a wristwatch provided with an antenna according to the present invention.
1A is a plan view of a wristwatch provided with an antenna, and FIG. 1B is a side view thereof. FIG. 1 (a) (b)
In FIG. 1, reference numeral 1 denotes a wristwatch, and a band portion 2 for attaching the wristwatch 1 to an arm extends from both sides of the wristwatch 1. A band attachment portion 10a to which the band portion 2 is attached is formed on both sides of a main body 10 which is a case of the wristwatch 1, and a storage portion is formed at a central portion thereof. A clock circuit unit is incorporated in the storage unit. Further, the upper surface of the storage section is opened, and the antenna section 14 shown in FIG. 2 is also stored so as to face this opening. The display unit 12 made of liquid crystal or the like is provided above the antenna unit 14 so as to cover the upper surface of the antenna unit 14.

[0010] Clock information and wireless device information are displayed on the display unit 12. Further, the display unit 12 is fixed to the upper part of the antenna unit 14 so as to be slidable in the extending direction of the band unit 2. The crown-shaped switch 13 provided on the side surface of the main body 10 is a switch having an on / off switch function, a display switching function, a clock information setting function, and the like of a wireless device built in the main body 10. is there. Next, FIG. 2 shows a state in which the display unit 12 is slid and the antenna unit 14 is exposed in the wristwatch provided with the antenna of the present invention shown in FIG. However, FIG. 2A is a plan view of a wristwatch provided with the antenna of the present invention in which the display unit 12 is slid, and FIG. 2B is a side view thereof.

In FIGS. 2A and 2B, when the display unit 12 is slid with respect to the antenna unit 14, the upper surface of the antenna unit 14 provided so as to face the opening of the storage unit is exposed. , The antenna section 14 becomes operable. Thereby, transmission and reception can be performed using the antenna unit 14. The antenna section 14 is formed of, for example, a planar antenna formed of a rectangular patch element as shown in the figure, and has a feed point 14 at a position deviated from the center as shown in the figure.
By providing a, the antenna unit 14 can transmit and receive circularly polarized waves. As a result, the present invention can be applied to a satellite mobile phone such as an iridium system or an Odyssey system or a GPS. Then, the display unit 12
Displays clock information and various kinds of reception information. Since the wristwatch 1 is worn on the wrist, the antenna unit 14 can be easily directed to the satellite.

When the antenna unit 14 is a GPS receiving antenna, when clock information is displayed on the display unit 12, the year, month, day, day of the week, hour, minute, second, etc. are displayed. When the reception information is displayed on the display unit 12 by operating the display unit 13, the GPS of the circular polarization received by the antenna unit 14 is
The latitude, longitude, speed, map information, and the like calculated from the signal are displayed. Thereby, a wristwatch provided with the antenna of the present invention can be used as a receiver of the navigation system. The receiving circuit of this receiver is an antenna unit 14
Built in. The main body 10 is usually made of metal and can function as a ground plane for the antenna section 14. However, when the main body 10 is made non-conductive, the dielectric on which the planar antenna is formed is formed. An earth conductor may be formed on the back surface of the body substrate to form a ground plane.

A sliding mechanism for sliding the display unit 12 with respect to the antenna unit 14 will be described with reference to FIG.
As shown in FIG. 2B, a pair of elongated slide grooves 11a are formed on two opposing side surfaces of the display slide unit 11 formed on the upper part of the antenna unit 14, respectively. And, the engagement projections engaged in the slide grooves 11a are:
The display unit 12 is formed on the inner side surface of the side wall corresponding to the display slide unit 11. Fig. 3 shows the details of this slide mechanism.
This will be described with reference to (a) to (d) and FIGS. 4 (a) to (c). FIGS. 3A to 3D show a state where the display unit 12 is not slid in the slide mechanism.
(A)-(c) The state which slided the display part 12 in the slide mechanism is shown.

As shown in these figures, the antenna unit 14
A pair of elongated slide grooves 11a are formed on opposite sides of the display slide portion 11 formed at the upper part of
A display section 12 having a U-shaped cross section is fitted so as to cover the display slide section 11. A pair of engaging projections 12a are formed on the inner side surfaces of the opposed side walls of the display unit 12, and the pair of engaging projections 12a are slidably engaged with the pair of sliding grooves 11a. Here, when the engagement protrusion 12a slides in the slide groove 11a, the display unit 12 slides with respect to the display slide unit 11. Then, by sliding the display unit 12 as shown in FIG. 4, the upper surface of the display slide unit 11 formed on the upper surface of the antenna unit 14 is exposed, and the antenna unit 14 can operate. In addition, the engagement protrusion 1 in the display part 12
A side wall orthogonal to the side wall on which 2a is formed is formed on one side surface of the display unit 12. In addition, a plurality of contacts are provided at one end of the upper surface of the antenna unit 14, and terminals that contact the contacts are provided on the back surface of the display unit 12. As a result, signals and power can be supplied to the display unit 12.

Next, FIGS. 5A and 5B and FIGS. 6A and 6B show a second example of the configuration of the embodiment of the wristwatch provided with the antenna of the present invention. However, FIG. 5A is a plan view of a wristwatch provided with the second antenna of the present invention, FIG. 5B is a side view thereof, and FIG. 6A is a slide view of the second antenna of the present invention. FIG. 2B is a plan view of the wristwatch provided, and FIG. In these figures, reference numeral 1 denotes a wristwatch, and a band portion 2 for attaching the wristwatch 1 to an arm extends from both sides of the wristwatch 1. The main body 20, which is the case of the wristwatch 1, has band mounting portions 20a to which the band portion 2 is mounted on both sides, and a storage portion formed at the center thereof. A clock circuit unit is incorporated in the storage unit. In addition, the upper surface of the storage unit is opened, and the display unit 22 made of liquid crystal or the like shown in FIG. 6 is also stored so as to face this opening. An antenna unit 24 is slidably provided above the display unit 22 so as to cover the upper surface of the display unit 22.

The antenna section 24 is composed of, for example, a planar antenna composed of rectangular patch elements as shown in the figure, and by providing a feeding point 24a at a position deviated from the center as shown in the figure, a circularly polarized wave is obtained. Can be used as the antenna unit 24 for transmitting and receiving the data. As a result, the present invention can be applied to a satellite mobile phone such as an iridium system or an Odyssey system or a GPS. Since the wristwatch 1 is worn on the wrist, the antenna unit 24 can be easily directed to the satellite. The crown-shaped switch 23 provided on the side surface of the main body 20 is a switch having an on / off switch function, a display switching function, a clock information setting function, and the like of a wireless device built in the main body 20. is there.

FIG. 6 shows the wristwatch provided with the second antenna of the present invention shown in FIG. 5 in a state where the antenna section 24 is slid to expose the display section 22. However, FIG.
(A) shows the second embodiment of the present invention in which the antenna section 24 is slid.
(B) is a side view of a wristwatch provided with the antenna of FIG. The antenna section 24 is fixed to an antenna slide section 21 formed above the display section 22 so as to be slidable in the extending direction of the band section 2. FIG. 6 (a)
As shown in (b), when the antenna unit 24 is slid with respect to the display unit 22, the upper surface of the display unit 22 provided so as to face the opening of the storage unit is exposed, and the display unit 2 is opened.
2 can be observed. The display unit 22 displays clock information, various kinds of reception information, and the like.

When the antenna section 24 is a GPS receiving antenna, when clock information is displayed on the display section 22, year, month, day, day of the week, hour, minute, second, etc. are displayed. When the reception information is displayed on the display unit 22 by operating the GPS receiver 23, the circularly polarized GPS signal received by the antenna unit 24 is displayed.
The latitude, longitude, speed, map information, and the like calculated from the signal are displayed. Thereby, a wristwatch provided with the antenna of the present invention can be used as a receiver of the navigation system. In addition, a ground plane is formed on the back surface of the dielectric substrate on which the planar antenna is formed in the antenna section 24.

A slide mechanism for sliding the antenna section 24 with respect to the display section 22 will be described. As shown in FIG. 6B, two opposing side surfaces of the antenna slide section 21 formed on the upper part of the display section 22. , A pair of elongated slide grooves 21a is formed. A pair of engagement protrusions that engage with the slide groove 21a are formed on the inner surface of the side wall of the antenna unit 24 corresponding to the slide groove 21a formed on the antenna slide unit 21.
Note that this slide mechanism is the same as the slide mechanism shown in FIGS. 3 and 4, and a detailed description thereof will be omitted. However, in this case, the relationship between the display unit and the antenna unit is reversed.

Next, FIGS. 7A and 7B and FIGS. 8A and 8B show a third example of the configuration of the embodiment of the wristwatch provided with the antenna of the present invention. 7 (a) is a plan view of a wristwatch having an antenna, FIG. 7 (b) is a side view thereof, FIG. 8 (a) is a plan view of a wristwatch having an antenna in a slid state, and FIG. It is the side view. In these figures, reference numeral 1 denotes a wristwatch, and a band portion 2 for attaching the wristwatch 1 to an arm extends from both sides of the wristwatch 1. The main body 30, which is the case of the wristwatch 1, has band mounting portions 30a to which the band portion 2 is mounted on both sides, and a storage portion formed at the center thereof. A clock circuit unit is incorporated in the storage unit. In addition, the upper surface of the storage unit is opened, and the display unit 32 made of liquid crystal or the like shown in FIG. 8 is also stored so as to face this opening. An antenna unit 34 is slidably provided above the display unit 32 so as to cover the upper surface of the display unit 32.

FIG. 8 shows the wristwatch having the third antenna of the present invention shown in FIG. 7 in a state in which the display section 32 is exposed by sliding the antenna section 34. However, FIG.
(A) is a third embodiment of the present invention in which the antenna unit 34 is slid.
(B) is a side view of a wristwatch provided with the above antenna. The antenna unit 34 is fixed to the antenna slide unit 31 formed on the display unit 32 so as to be slidable in a direction orthogonal to the extending direction of the band unit 2.
As shown in FIGS. 8A and 8B, when the antenna unit 34 is slid with respect to the display unit 32, the upper surface of the display unit 32 provided to face the opening of the storage unit is exposed. , The display unit 32 can be observed. The display section 32 displays clock information, various kinds of reception information, and the like.

Except for the points described above, the third aspect of the present invention
The configuration of the wristwatch provided with the antenna is similar to that of the wristwatch provided with the second antenna of the present invention shown in FIGS. 5 and 6, and the description thereof is omitted. In the wristwatch equipped with the third antenna of the present invention shown in FIGS.
0, the antenna section 34 is provided so as to be slidable with respect to the display section 32.
Alternatively, the display unit 32 may be provided so as to be slidable with respect to the antenna unit 34 by housing the antenna unit 34 at 0.

[0023]

As described above, according to the present invention, the antenna portion can be exposed by sliding the display portion, or the display portion can be exposed by sliding the antenna portion. can do. In this case, since the antenna unit is arranged at a position far from the human body, the antenna unit can be made hard to be affected by the human body. Furthermore, since the planar antenna constituting the antenna unit can be an antenna capable of receiving circularly polarized waves, it can be applied to a wireless system for satellite communication. For example, GPS
Assuming that the system receives a GPS signal from a satellite, a wristwatch equipped with the antenna of the present invention can be used as a receiver for a portable navigation system. can do.

[Brief description of the drawings]

FIG. 1 is a diagram showing an example of a configuration of an embodiment of a wristwatch including an antenna of the present invention.

FIG. 2 is a diagram showing a slide state in an example of the configuration of the embodiment of the wristwatch including the antenna of the present invention.

FIG. 3 is a diagram showing a slide mechanism in a wristwatch provided with the antenna of the present invention.

FIG. 4 is a diagram showing a slide mechanism in a slid state in a wristwatch provided with the antenna of the present invention.

FIG. 5 is a diagram showing a second example of the configuration of the embodiment of the wristwatch provided with the antenna of the present invention.

FIG. 6 is a diagram showing a slide state in a second example of the configuration of the embodiment of the wristwatch including the antenna of the present invention.

FIG. 7 is a diagram showing a third example of the configuration of the embodiment of the wristwatch provided with the antenna of the present invention.

FIG. 8 is a diagram showing a state of sliding in a third example of the configuration of the embodiment of the wristwatch provided with the antenna of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Wristwatch 2 Band part 10, 20, 30 Body part 10a, 20a, 30a Band mounting part 11 Display slide part 11a, 31a, 32a Sliding groove 12 Display part 12a Engagement projection 13,23,33 Switch 14,24,34 Antennas 14a, 24a, 34a Feeding points 21, 31 Antenna slides 22, 32 Display

Continued on front page F term (reference) 2F002 AA01 AA12 AB04 AB05 AB06 AC01 AC03 BA04 BA21 BA25 BA26 BB04 EA01 EE00 EF01 EH01 GA06 5J046 AA03 AA07 AB00 AB13 SA06 5J047 AA03 AA07 AB00 AB13 EF02 FD01

Claims (6)

[Claims] 1. A main body in which a clock function part is housed and an opening is provided on one surface, and at least a planar antenna housed in the main body so as to face the opening of the body. An antenna unit, comprising: a clock unit; a display unit that displays information obtained by processing a signal received by the antenna unit; and a display unit that is slidably attached to the antenna unit. A wristwatch provided with an antenna, wherein the wristwatch is covered with the display unit, and the display unit slides with respect to the antenna unit so that an upper surface of the antenna unit is exposed and operable. 2. A band portion for attaching the main body portion to an object to be attached is provided on both sides of the main body portion, and the display portion slides in a direction in which the band portion extends. Item 7. A wristwatch provided with the antenna according to Item 1. 3. Bands are provided on both sides of the main body for attaching the main body to an object to be mounted, and the display unit slides in a direction substantially orthogonal to a direction in which the band extends. A wristwatch comprising the antenna according to claim 1. 4. A main body section in which a clock function section is housed and an opening is provided on one side, clock information, information obtained by processing a signal received by an antenna section are displayed, and A display unit housed in the main body so as to face the opening; and an antenna unit slidably attached to the display unit and having at least a planar antenna, A wristwatch having an antenna, wherein a display surface is covered by the antenna unit, and the display surface of the display unit is exposed by sliding the antenna unit with respect to the display unit. 5. A band portion for attaching the main body portion to an object to be mounted is provided on both sides of the main body portion, and the antenna portion slides in a direction in which the band portion extends. Item 7. A wristwatch provided with the antenna according to Item 4. 6. A band for attaching the main body to an object to be mounted is provided on both sides of the main body, and the antenna slides in a direction substantially orthogonal to a direction in which the band extends. A wristwatch provided with the antenna according to claim 4.