JP2003324397A - Data communication equipment and watch - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To secure waterproof performance identical to that of a waterproof wrist watch as data communication equipment. <P>SOLUTION: A watch 11 having a case main body 26 and a rear cover 27 and worn with the rear cover 27 in contact with a human body is provided with a watch part 24 for notifying time information, a pair of electrodes 21 and 22 formed on a front face side of the rear cover 27 made of insulating material, a data communication part 23 housed in a case 28 and for performing data communication with the outside through the first and second electrodes 21 and 22 with a living body as a part of a transmission path, contact terminals 41 and 43 provided in through holes 42 and 44 formed in the rear cover 27 so as to be in contact with the electrodes and for electrically connecting the electrodes to the data communication part, a waterproof member 49 for preventing liquid from intruding into the case 28 through the through holes 42 and 44, and a power supply 25 for feeding power to the watch part 24 and the data communication part 23. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a data communication device, and more particularly to a data communication device mounted on a living body for use.

[0002]

2. Description of the Related Art Conventionally, various data communication devices for performing data communication using a living body (particularly a human body) as a transmission path are known. In such a data communication device, the ease of communication is firstly developed, and when the user wears it,
In some cases, data is exchanged by contacting a predetermined signal terminal provided in a data communication device of a communication destination.

[0003]

As described above, in the above-mentioned conventional data communication device, the waterproof performance is not sufficient even if the data communication device is constructed as a wristwatch type because it is portable, and it is not suitable for water sports. When doing it, there was a problem that it had to be removed, which was troublesome.
Therefore, an object of the present invention is to provide a data communication device and a portable timepiece having a data communication function that can ensure the waterproof performance equivalent to that of a waterproof wristwatch.

[0004]

In order to solve the above-mentioned problems, a data communication device having a case body and a back cover, which is mounted in contact with a living body and performs data communication by using the living body as a part of a transmission path. Is a pair of electrodes formed on the front surface side of the back cover, a data communication unit housed in a case composed of the case body and the back cover, and a through hole formed in the back cover. It is provided so as to contact the electrodes,
A contact terminal for electrically connecting the electrode to the data communication unit, and a waterproof member for preventing liquid from entering through the through hole into the case. There is. According to the above configuration, the data communication unit is
Data communication is performed via the contact terminal and the pair of electrodes in a state in which the liquid is prevented from entering through the through hole by the waterproof member.

In this case, the waterproof member is a packing arranged so as to contact both the wall of the through hole and the surface of the contact terminal facing the wall, and the contact terminal moves the packing. An engaging groove with which the packing is engaged may be provided in order to regulate the above. According to the above configuration, the packing is engaged with the engaging groove of the contact terminal, the movement of the packing is regulated, and the waterproofing is surely performed.
Further, the contact terminal may be pressed into the through hole together with the waterproof member. According to the above configuration, the contact terminal press-fitted into the through hole together with the waterproof member improves waterproofness.

A data communication device having a case body and a back cover, which is mounted in contact with a living body and performs data communication using the living body as a part of a transmission path, is a pair formed on the front surface side of the back cover. Of the electrodes, a data communication unit that is housed in a case composed of the case body and the back cover, and performs the data communication, and a conductive elastic member that is arranged so as to contact the electrodes from the back side of each of the electrodes. And a contact terminal provided in a through hole formed in the back cover so as to be in contact with the conductive elastic member, for electrically connecting the electrode to the data communication unit, and the through hole into the case. And a waterproof member for preventing liquid from entering through the. According to the above configuration, the data communication unit performs data communication via the contact terminal, the conductive elastic member and the pair of electrodes in a state in which the liquid is prevented from entering through the through hole by the waterproof member.

In this case, the contact terminal has a shaft portion and a collar portion formed on a peripheral surface of the shaft portion, and the waterproof member has a surface of the collar portion on the side of the through hole and the shaft portion. It may be formed as an insulating elastic member arranged so as to be in contact with both a part of the surface of the and the wall of the through hole that faces them. According to the above configuration, the contact terminal is supported by the back cover while being insulated from the back cover by the insulating elastic member and kept waterproof.

Further, the through hole may be a narrow diameter portion having a small diameter, and the shaft portion may be press-fitted into the narrow diameter portion together with the insulating elastic member. According to the above configuration, the shaft portion is press-fitted into the narrow diameter portion together with the insulating elastic member, so that the insulating elastic member, which is a waterproof member, ensures the waterproofing. Further, the data communication device may be formed in a wristwatch type having a band part. According to the above configuration, it is easy to attach to a living body,
As a result, it becomes easy to carry.

Further, a portable timepiece having a case body and a back cover, which is worn in contact with a living body, has a timepiece section for notifying time information and a pair of front cover side surfaces. A data communication unit that is housed in a case composed of an electrode, the case body and the case back, and performs data communication with the outside through the first electrode and the second electrode with the living body as a part of a transmission path. And a contact terminal provided in a through hole formed in the back cover so as to contact the electrode, for electrically connecting the electrode to the data communication unit, and the through hole into the case. And a power source for supplying electric power to the clock section and the data communication section. According to the above configuration, the power supply supplies power to the clock unit and the data communication unit. As a result, the clock unit announces the time information. On the other hand, the data communication unit performs data communication through the contact terminal and the pair of electrodes in a state in which the waterproof member prevents the liquid from entering through the through hole.

In this case, the waterproof member is a packing arranged so as to contact both the wall of the through hole and the surface of the contact terminal facing the wall, and the contact terminal moves the packing. An engaging groove with which the packing is engaged may be provided in order to regulate the above. According to the above configuration, the packing is engaged with the engaging groove of the contact terminal, the movement of the packing is regulated, and the waterproofing is surely performed.

Further, the contact terminal may be press-fitted into the through hole together with the waterproof member.
According to the above configuration, the waterproof property is improved by the contact terminal press-fitted into the through hole together with the waterproof member.

Further, in a portable timepiece having a case main body and a back cover, which is worn in contact with a living body, a timepiece section for notifying time information and a pair of front cover side surfaces are formed. Electrodes, a conductive elastic member arranged so as to come into contact with the electrodes from the back side of each of the electrodes, and a case formed of the case body and the back cover, the living body as a part of the transmission path The first electrode and the second
A data communication unit that performs data communication with the outside through electrodes,
Through a through hole formed in the back cover so as to be in contact with the conductive elastic member, for electrically connecting the electrode to the data communication unit, and the through hole into the case. And a power source for supplying electric power to the clock section and the data communication section. According to the above configuration, the power supply supplies power to the clock unit and the data communication unit. As a result, the clock unit announces the time information.
On the other hand, the data communication unit performs data communication via the contact terminal, the conductive elastic member and the pair of electrodes in a state in which the liquid is prevented from entering through the through hole by the waterproof member.

In this case, the contact terminal has a shaft portion and a collar portion formed on a peripheral surface of the shaft portion, and the waterproof member is the surface of the collar portion on the side of the through hole and the shaft portion. May be formed as an insulating elastic member arranged so as to be in contact with both a part of the surface and the wall of the through hole that faces them. According to the above configuration, the contact terminal is supported by the back cover while being insulated from the back cover by the insulating elastic member and kept waterproof.

Further, the through hole may be a narrow diameter portion having a small diameter, and the shaft portion may be press-fitted into the narrow diameter portion together with the insulating elastic member. According to the above configuration, the shaft portion is press-fitted into the narrow diameter portion together with the insulating elastic member, so that the insulating elastic member, which is a waterproof member, ensures the waterproofing.

[0015]

BEST MODE FOR CARRYING OUT THE INVENTION Next, preferred embodiments of the present invention will be described with reference to the drawings. [1] First Embodiment FIG. 1 is a schematic configuration diagram of a data communication system of the embodiment. The data communication system 10 is mounted on the arm of the user U and has a mobile watch 11 having a built-in communication function and a mobile watch 1.
1 and the user U are connected as a part of the transmission path, and a communication control device 12 that performs various controls while communicating with the mobile timepiece 11 is provided.

FIG. 2 is a schematic block diagram of the portable timepiece 11 of the embodiment. The mobile watch 11 is roughly divided into the first
An electrode 21, a second electrode 22, a data communication unit 23, a watch unit 24, a battery 25, a case body 26 and a back cover 27 are provided. Here, the case body 26 and the back cover 27 are
The case 28 is configured. In this case, the first electrode 21
Since the second electrode 22 and the second electrode 22 are formed on the surface of the back cover 27, the portable timepiece 1 is always kept in contact with the surface of the arm of the user U.
1 is attached. The first electrode 21 functions as a signal terminal, and is arranged on the front surface side of the back cover 27 at a position where it can be electrically connected to the user U while maintaining an insulating state from the back cover. Furthermore, the first contact terminal 41 is attached to the back cover 27.
Is inserted in the first through hole 42 in a waterproof state by the waterproof member 49, and is arranged so as to be in electrical contact with the back surface of the first electrode 21. As a result, the first electrode 21 is electrically connected to the data communication unit 23 via the first contact terminal 41.

The second electrode 22 functions as a ground terminal,
The back cover 27 is disposed on the front surface side of the back cover 27 at a position where it can be electrically connected to the user U while maintaining an insulating state from the back cover. Further, the second contact terminal 43 is inserted into the second through hole 44 of the back cover 27 in a waterproof state by the waterproof member 49, and is arranged so as to electrically contact the back surface of the second electrode 22. As a result, the second electrode 22 is electrically connected to the data communication unit 23 via the second contact terminal 43. Further, the portable timepiece 11 has a band to be worn on the arm of the user U. B is provided.

FIG. 3 is a schematic block diagram of the data communication unit 23. The data communication unit 23 roughly includes a signal transmission / reception unit 31, a modulation / demodulation unit 32, a wakeup signal detection unit 33, a controller 34, a memory 35, and a display 36. The signal transmission / reception unit 31 uses the reception signal from the first electrode 21 as a modulation reception signal, and the modulation / demodulation unit 3
2 and the modulated transmission signal from the modulation / demodulation unit 32 is transmitted to the communication control device 12 side via the first electrode. The modulation / demodulation unit 32 demodulates the modulated reception signal from the signal transmission / reception unit 31 and outputs it as reception data to the controller 34, and also modulates the transmission data from the controller 34 and outputs it to the signal transmission / reception unit 31 as a modulation transmission signal. To do. The wake-up signal detection unit 33 receives the first signal from the communication control device 12 when the data communication unit 23 is in the power saving standby mode.
The wake-up signal input via the electrode 21 is detected, and the data communication unit 23 is shifted to the normal operation mode. In this case, in the power saving standby mode, the power from the battery 25 is supplied to the watch unit 24 and the controller 34.
Is supplied only to a part of the control circuit and the wake-up signal detection unit 33, and is not supplied to the signal transmission / reception unit 31, the modulation / demodulation unit 32, the memory 35, and the display 36.

The controller 34 is a CPU (not shown),
A ROM storing a control program, a RAM for temporarily storing various data, and various input / output interfaces are provided to control the entire data communication unit 23.
Received data from the communication control device 12 and transmitted data to the communication control device 12 are managed. The memory 35 is EE
It is composed of a non-volatile memory such as PROM and NVRAM and stores various data. The display 36 displays various data under the control of the controller 34.
The watch unit 24 has an analog pointer as described later, and notifies (displays) time information by the power supplied from the battery 25.
I do. The battery 25 supplies power to the data communication unit 23 and the watch unit 24 as a power source. Case body 26
The part that is in contact with the first electrode 21, which is the back cover, is made of an insulating material, and functions as a case 27 that protects the data communication part 23, the watch part 24, and the battery 25 together with the first electrode 21. There is.

Here, the detailed structure of the portable timepiece 11 will be described with reference to FIG. FIG. 4 is a cross-sectional view of the main parts of the mobile timepiece 11 of the first embodiment. In the following description,
For simplification of the description, the first electrode 21 will be mainly described, but the second electrode 22 also has the same configuration. The case body 26 of the portable timepiece 11 roughly includes a body portion 26A and a glass 26B. Body 26A
Cemented carbide, stainless steel, titanium-based alloy, or the like is used as. The glass 26B is made of, for example, artificial sapphire, and is fixed to the insulating case portion 26A by adhesion or the like. On the other hand, the back cover 27 is made of injection-molded plastic such as polyacetal or ABS, or an electrically insulating material such as sintered ceramics such as alumina ceramics. Further, the back cover 27 is, for example, sandwiching a packing 21A made of NBR (Nitrile Butadiene Rubber) to secure waterproofness,
It is fitted and fixed to the case body 26.

The first electrode 21 is made of a metal material which is a conductive material. As the conductive material, noble metal such as gold, cemented carbide, stainless steel, titanium alloy, etc. are used. The shape of the first electrode 21 may be a planar shape or may be a curved shape along the back of the arm. In addition, the thickness of the first electrode 21 is appropriately set in consideration of strength, workability, and designability required for carrying. As a result, it is possible to reliably ensure electrical continuity with the living body as the user, and since there is no protrusion, the appearance of the mobile timepiece 11 is slim, and the user does not feel uncomfortable even if the mobile phone 11 has a communication function. . Further, the first electrode 21 is adhesively fixed to the surface of the back cover 27 by an adhesive member 45. As the adhesive member 45, a so-called adhesive agent, a double-sided tape, or the like can be considered.

A circuit board 46 is housed in a case 28 composed of the case body 26 and the back cover 27.
In this case, the circuit board 46 constitutes a part of the watch unit 24 and a part of the data communication unit 23. Further, in the case 28, an analog pointer 24A, a dial 24B and a movement 24 which constitute the watch portion 24 are provided.
C is stored.

Next, the structure of the contact terminal will be described.
Since the first contact terminal 41 and the second contact terminal 43 have the same structure, the first contact terminal 41 will be described as an example. FIG. 5 shows an enlarged view of the vicinity of the first contact terminal. First contact terminal 4
1 has a substantially iron array shape, and an engagement groove 41A with which a packing is engaged is formed at the center of the body portion. Then, with the packing 47 engaged in the engagement groove 41A, the first contact terminal 41 is press-fitted into the first through hole 42, and one tip 41B thereof contacts the back surface side of the first electrode 21. The other tip 41C is brought into contact with the electrode pattern of the circuit board 46 to electrically connect the first electrode 21 and the circuit pattern formed on the circuit board 46. As a result, the first contact terminal 41 can ensure electrical continuity with the circuit on the circuit board 46 while the packing 47 of the first contact terminal 41 ensures waterproofness. Further, even if a part of the adhesive member 45 is peeled off, the first contact terminal 4
1 and the packing 47 can maintain the conductive state while ensuring waterproofness, and can continue the operation. In this case, although not shown, it is more preferable to provide a plurality of first contact terminals 41 and second contact terminals 43 respectively in order to ensure conduction.

FIG. 6 shows a schematic block diagram of the communication control device 12. The communication control device 12 roughly includes a signal transmission / reception unit 51, a modulation / demodulation unit 52, a wakeup signal generation unit 53, a controller 54, a storage device 55, a touch panel display 56, a communication interface 57, and a power supply 58. The signal transmission / reception unit 51 outputs the reception signal from the portable timepiece 11 side as a modulation reception signal to the modulation / demodulation unit 52 via the touch panel display 56, and outputs the modulation transmission signal from the modulation / demodulation unit 52 to the touch panel display 56. It is transmitted to the portable timepiece 11 side via. The modulation / demodulation unit 52 demodulates the modulated reception signal from the signal transmission / reception unit 51 to generate reception data in the controller 5
4 and also modulates the transmission data from the controller 54 and outputs it to the signal transmitting / receiving unit 51 as a modulated transmission signal.

The wake-up signal generator 53 generates a wake-up signal under the control of the controller 54,
Through the touch panel display 56, the mobile clock 11
Send to the side. The controller 54 is a CP (not shown).
U, ROM storing a control program, RAM for temporarily storing various data, various input / output interfaces, overall control of the communication control device 12, the portable timepiece 1
It manages the received data from 1 and the transmitted data to the portable timepiece 11 and controls communication with an external server computer or the like via the communication interface 57. The storage device 55 includes an external storage device such as a semiconductor memory or a hard disk, and stores various data. The touch panel display 56 is the controller 3
Under the control of 4, various data is transmitted / received to / from the portable timepiece 11 and various information is displayed. The communication interface 57 provides a communication interface function with an external server computer or the like. The power supply 58 supplies electric power for operation to the entire communication control device 12.

Next, the general operation of the data communication system 10 will be described. In the following description, the user U
It is assumed that the mobile watch 11 is directly attached to the right wrist. Further, the portable timepiece 11 is in the power saving standby mode, and the power from the battery 25 is supplied only to the watch unit 24, a part of the control circuit configuring the controller 34, and the wakeup signal detection unit 33. I shall. The user U wears the mobile watch 11 on the right wrist and touches the touch panel display 56 of the communication control device 12.
Touch the finger of the right hand UR to. As a result, as shown by the dotted line in FIG. 7, the touch panel display 56, the user U
Right hand, first electrode 21, (first contact terminal 41), internal circuit of mobile timepiece 11, (second contact terminal 43), (user U), ground GND, internal circuit of communication control device 12,
The signal path is formed by the path of the touch panel display 56. At this time, the controller 54 of the communication control device 12 detects that the user U has touched the touch panel display 56, controls the wake-up signal generation unit 53 to generate a wake-up signal, and the touch panel display 56, the user U. Right hand U
It is sent to the portable timepiece 11 side via the R finger.

As a result, the wake-up signal is input to the wake-up signal detector 33 via the first electrode 21 of the portable timepiece 11. Wake-up signal detector 33
Detects the input wake-up signal, notifies the controller 34, and shifts the data communication unit 23 to the normal operation mode. As a result, in the power saving standby mode,
The power from the battery 25 is supplied to the signal transmission / reception unit 31, the modulation / demodulation unit 32, the memory 35, and the display 36, which were not supplied. Accordingly, the controller 34
Reads out predetermined data from the memory 35 according to a control program in a ROM (not shown), and the modulation / demodulation unit 3
2. The signal is transmitted to the communication control device 12 via the signal transmitting / receiving unit 31 and the first electrode 21. That is, the controller 3
Reference numeral 4 modulates predetermined transmission data read from the memory 35 (for example, arbitrary data such as ID data and command data according to the purpose of the data communication system 40) by the modulation / demodulation unit 32, and by the signal transmission / reception unit 31. It is amplified and applied as a modulated voltage signal between the first electrode 21 and the second electrode 22.

On the other hand, the transmission / reception unit 51 of the communication control device 12
Is the portable watch 1 via the touch panel display 56.
When the modulation voltage signal is input from the first side, the modulation / demodulation unit 5 performs waveform shaping and amplification of the input modulation voltage signal.
It demodulates by 2 and outputs to the controller 54 as received data. As a result, the controller 54 stores the received data in the storage device 55 based on a control program in a ROM (not shown), or controls such as opening a door via the communication interface and activating various devices. Further, if necessary, various information such as completion of authentication and permission to enter the room is displayed on the display screen of the touch panel display 56, and predetermined transmission data is changed / changed.
The touch panel display 5 is modulated by the demodulation unit 52 and amplified by the signal transmission / reception unit 51 to be a modulated voltage signal.
It will be transmitted to the portable timepiece 11 side via 6.

As described above, according to the first embodiment, the first electrode 21 and the second electrode 22 are the portable timepieces 11.
Is formed on the front surface side of the back cover 27 of each of the first electrode 21 and the second electrode 22, and the packing is press-fitted into the through holes 42 and the through holes 44 formed in the back cover 27, respectively. Since the waterproof property is ensured by the first contact terminal 41 and the second contact terminal 43, it is possible to ensure the waterproof performance equivalent to that of the waterproof type portable timepiece. Furthermore the first
Since the electrode 21 and the second electrode 22 are substantially in conformity with the shape of the back cover 27, the user U can also wear the portable timepiece without feeling uncomfortable in appearance and feeling when wearing.

[2] Second Embodiment Next, a second embodiment will be described with reference to FIG. The second embodiment is different from the first embodiment in that the back cover is made of a conductive material, and the insulating property between the back cover and the contact terminal is ensured, and the waterproof property and the first electrode or the second electrode and the circuit are provided. This is the point of ensuring conductivity with the substrate. FIG. 7 is a cross-sectional view of the essential parts of the portable timepiece 11A of the second embodiment. 7, the same parts as those in FIG. 4 are designated by the same reference numerals. In the following description, as in the first embodiment, the first electrode 21 will be mainly described for simplification of the description.
The back cover 27A is made of a metal that is a conductive material, for example, a noble metal such as gold, stainless steel, or a titanium alloy. Further, the back cover 27 is, for example, NBR (Nitril
Packing 21A made of e Butadiene Rubber)
It is fitted and fixed to the case main body 26 while sandwiching it to ensure waterproofness.

The first electrode 21 is made of a metal material which is a conductive material. As the conductive material, noble metal such as gold, cemented carbide, stainless steel, titanium alloy, etc. are used. The shape of the first electrode 21 may be a planar shape or may be a curved shape along the back of the arm. Further, the thickness of the first electrode 21 is appropriately set in consideration of strength, workability, and designability necessary for carrying, but since the back cover 27 is made of a metal material,
Compared with the first embodiment, it is not necessary to consider the strength so much. As a result, the electrical connection with the living body, which is the user, can be surely secured, and since there is no protrusion, the appearance of the portable timepiece 11 becomes slimmer, and the user feels strange even if it has a communication function. Never. Further, the first electrode 21
Is adhered and fixed to the surface of the back cover 27 by an adhesive insulating member 65 and is in an insulating state from the back cover 27A.
As the adhesive insulating member 65, what is called an adhesive, a double-sided tape, or the like can be considered. Next, the structure of the contact terminal will be described by taking the first contact terminal 61 as an example.
The contact terminals have the same structure.

FIG. 9 shows an enlarged view of the vicinity of the first contact terminal.
The first contact terminal 61 has a substantially top shape having a flange portion 62 and a shaft portion 63, and the flange portion 62 is formed at a substantially central portion of the shaft portion 63. On the surface 62A of the flange portion 62 on the first electrode 21 side, a conductive spring 66 plated with gold, which is a conductive elastic member, is arranged in a state capable of pressing the back surface and the surface 62A of the first electrode 21. On the other hand, the back cover 27 of the collar portion 62
The insulating elastic member 64 is provided on the surface 62B on the A side of the first through hole 4
2 is interposed between the inner peripheral surface and the inner peripheral surface of the first through hole 42, and one end of the shaft portion 63 of the first contact terminal 61 is press-fitted into the narrow diameter portion 42A of the first through hole 42. Therefore, the insulating elastic member 64 is a waterproof member that secures the insulation between the first contact terminal 61 and the back cover 27A and prevents liquid such as water from entering the circuit board 46 side from the first electrode 21 side. Is also working.

With this structure, the first contact terminal 61 is press-fitted into the first through hole 42, and one end 61A of the first contact terminal 61 is brought into contact with the electrode pattern of the circuit board 46, so that the flange portion 62 is formed. The surface 62A is electrically connected to the first electrode 21 via the conductive spring 66. Therefore, the first contact terminal 6
1 and the conductive spring 66, the first electrode 21 and the circuit board 46.
The circuit pattern formed above is electrically connected. As a result, the first contact terminal 61 and the insulating elastic member 6
The first contact terminal 61 and the conductive spring 66 can ensure electrical continuity with the circuit on the circuit board 46 in a state in which 4 is waterproof. Further, even when a part of the adhesive insulating member 65 is peeled off, the first contact terminal 61, the conductive spring 66, and the insulating elastic member 64 can maintain the conductive state while ensuring the waterproof property and can continue the operation. It will be possible.

In this case, although not shown,
It is more preferable that a plurality of first contact terminals 61 and second contact terminals are provided in order to ensure conduction. Next, the general operation of the data communication system according to the second embodiment will be described. The user U brings the finger of the right hand UR into contact with the touch panel display 56 of the communication control device 12 while wearing the mobile watch 11 on the right wrist. As a result, as shown by the dotted line in FIG. 7, the touch panel display 56, the right hand of the user U, the first electrode 21, the conductive spring 66, the first contact terminal 61, the internal circuit of the portable timepiece 11, the second contact. The signal path is formed by the path of the terminal, the user U), the ground GND, the internal circuit of the communication control device 12, and the touch panel display 56. The subsequent operation is similar to that of the first embodiment.

As described above, according to the second embodiment, the first electrode 21 and the second electrode 22 are the same as the portable timepiece 1.
1 is formed on the front surface side of the back lid 27A, and on the back surface of each of the first electrode 21 and the second electrode 22, a through hole 42 and a through hole 44 formed in the back lid 27 are provided together with an insulating elastic member. Since the first contact point terminal 61 or the second contact point terminal is press-fitted to ensure the waterproof property, it is possible to ensure the waterproof performance equivalent to that of the waterproof type portable timepiece. Further, since the first electrode 21 and the second electrode 22 are substantially in conformity with the shape of the back cover 27, the user U can also wear the mobile watch without feeling uncomfortable in appearance and feeling when wearing. Becomes

[3] Modification of Embodiment In the above description, the watch unit 24 has the analog hands and displays the time information by the power supplied from the power source. Alternatively, not only the time information display but also a voice notification may be used. In the above description, the mobile watch has a built-in transmitting / receiving function, but it may be configured to have only the data communication function without the original function of the mobile watch (function of the watch part). Is. In the above description, only the case where a human being is used as the living body has been described, but the present invention is also applicable to living bodies such as animals other than humans.

[0037]

According to the present invention, it is possible to ensure the same waterproof performance as a waterproof type portable timepiece as a data communication device.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram of a data communication system according to an embodiment.

FIG. 2 is a schematic block diagram of a portable timepiece according to an embodiment.

FIG. 3 is a schematic configuration block diagram of a data communication unit.

FIG. 4 is a cross-sectional view of a main part of the mobile timepiece according to the first embodiment.

FIG. 5 is a cross-sectional view of essential parts near a first contact according to the first embodiment.

FIG. 6 is a schematic block diagram of a communication control device.

FIG. 7 is an explanatory diagram of a signal path formation state in the data communication system according to the embodiment.

FIG. 8 is a cross-sectional view of a main part of the mobile timepiece according to the second embodiment.

FIG. 9 is a sectional view of an essential part near the first contact according to the second embodiment.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 10 ... Data communication system, 11 ... Portable timepiece (data communication device), 12 ... Communication control device, 21 ... 1st electrode (back cover), 22 ... 2nd electrode, 23 ... Data communication part, 24 ... Watch part, 24A … Analog pointer, 24B… Dial plate, 2
4C ... Movement, 25 ... Battery (power source), 26 ... Case body, 26A ... Insulating case part, 26B ... Glass, 26
C ... Case part, 26D ... Through hole, 26E ... Pipe, 26
F ... sliding part, 26G ... operation head, 26H ... operator, 26
I ... Elastic part, 26J ... Stoppage prevention, 27 ... Back cover, 28 ... Case, 31 ... Signal transmission / reception part, 32 ... Modulation / demodulation part, 33 ...
Wake-up signal detector, 34 ... Controller, 35
... memory, 36 ... display, 41 ... first contact terminal (contact terminal), 41A ... engaging groove, 42 ... first through hole, 4
2A ... narrow diameter part, 45 ... adhesive member, 46 ... circuit board, first
Contact terminals 41 and 47 ... Packing (waterproof member), 51
... signal transmission / reception section, 52 ... modulation / demodulation section, 53 ... wakeup signal generation section, 54 ... controller, 55 ... storage device, 56 ... touch panel display, 57 ... communication interface, 58 ... power supply, 61 ... first contact terminal, 62
... Collar portion, 64 ... Insulating elastic member, 65 ... Adhesive insulating member, 6
6 ... Conductive spring (conductive elastic member)

Front page continuation (51) Int.Cl. ⁷ Identification code FI theme code (reference) H05K 5/06 H05K 5/06 D

Claims (13)

[Claims] 1. A data communication device having a case main body and a back cover, which is mounted in contact with a living body to perform data communication using the living body as a part of a transmission path, wherein the data communication device is formed on a front surface side of the back cover. A pair of electrodes, a data communication unit that is housed in a case composed of the case body and the back cover, and performs the data communication, and a through hole formed in the back cover so as to contact the electrode. A contact terminal for electrically connecting the electrode to the data communication unit, and a waterproof member for preventing liquid from entering the case through the through hole. Characteristic data communication device. 2. The data communication device according to claim 1, wherein the waterproof member is a packing arranged so as to contact both a wall of the through hole and a surface of the contact terminal facing the wall, The contact terminal has an engagement groove with which the packing is engaged so as to restrict the movement of the packing. 3. The data communication device according to claim 2, wherein the contact terminal is press-fitted into the through hole together with the waterproof member. 4. A data communication device having a case body and a back cover, which is mounted in contact with a living body to perform data communication using the living body as a part of a transmission path. The data communication device is formed on a front surface side of the back cover. A pair of electrodes, a data communication unit that is housed in a case composed of the case body and the back cover, and performs the data communication, and is arranged so as to contact the electrodes from the back side of each electrode. A conductive elastic member, a contact terminal provided in a through hole formed in the back cover so as to be in contact with the conductive elastic member, and a contact terminal for electrically connecting the electrode to the data communication unit; A data communication device, comprising: a waterproof member for preventing liquid from entering through a through hole. 5. The data communication device according to claim 4, wherein the contact terminal has a shaft portion and a collar portion formed on a peripheral surface of the shaft portion, and the waterproof member is provided on the through hole side. A data communication device, wherein the data communication device is formed as an insulating elastic member arranged so as to be in contact with both the surface of the flange portion, a part of the surface of the shaft portion, and the wall of the through hole that faces them. 6. The data communication device according to claim 5, wherein the through hole is a narrow diameter portion having a small diameter, and the shaft portion is press-fitted into the narrow diameter portion together with the insulating elastic member. A data communication device characterized by being provided. 7. The data communication device according to claim 1, wherein the data communication device is formed in a wristwatch type having a band portion. 8. A portable timepiece having a case body and a back cover, which is worn in contact with a living body, and a timepiece part for notifying time information, and a pair of front and back sides formed on the front side of the back cover. A data communication unit that is housed in a case composed of an electrode, the case body, and the back cover, and performs data communication with the outside through the first electrode and the second electrode with the living body as a part of a transmission path. And a contact terminal provided in a through hole formed in the back cover so as to be in contact with the electrode, for electrically connecting the electrode to the data communication unit, and through the through hole in the case. A portable timepiece, comprising: a waterproof member for preventing liquid from entering and a power supply for supplying electric power to the timepiece section and the data communication section. 9. The portable timepiece according to claim 8, wherein the waterproof member is a packing arranged so as to come into contact with both the wall of the through hole and the surface of the contact terminal facing the wall. The terminal has an engagement groove with which the packing is engaged so as to restrict the movement of the packing. 10. The portable timepiece according to claim 9, wherein the contact terminal is press-fitted into the through hole together with the waterproof member. 11. A portable timepiece having a case body and a back cover, which is worn in contact with a living body, and a timepiece part for notifying time information, and a pair of front and back sides formed on the front side of the back cover. Electrodes, a conductive elastic member arranged so as to contact the electrodes from the back side of each electrode, and housed in a case composed of the case body and the back cover, and the living body as a part of the transmission path. A data communication unit that performs data communication with the outside through the first electrode and the second electrode, and a through hole formed in the back cover so as to be in contact with the conductive elastic member. A contact terminal for electrically connecting to a portion, a waterproof member for preventing liquid from entering the case through the through hole, and a power supply for supplying power to the clock portion and the data communication portion. And with Portable timepiece, characterized in that. 12. The portable timepiece according to claim 11, wherein the contact terminal includes a shaft portion and a flange portion formed on a peripheral surface of the shaft portion, and the waterproof member includes the flange on the through hole side. The mobile timepiece is formed as an insulating elastic member arranged so as to be in contact with both the surface of the portion and a part of the surface of the shaft portion and the wall of the through hole that faces them. 13. The portable timepiece according to claim 12, wherein a part of the through hole is a narrow diameter portion having a narrow diameter, and the shaft portion is press-fitted into the narrow diameter portion together with the insulating elastic member. A mobile watch characterized by being.