JPH04227344A - Wrist watch type portable radio equipment - Google Patents

Abstract

PURPOSE:To realize the small sized and light weight wrist watch type radio equipment delivering a call to a carrier without bonding a sound. CONSTITUTION:A piezoelectric element 104 is bonded to a vibrator section 103. Plural projections 2a of a mobile body 2 in press contact with the vibrator section 103 are in contact with a carrier via a protection film 111. When a call signal is inputted, a prescribed voltage is applied to the piezoelectric element 104, which generates a travelling wave to the vibrator section 103. The mobile body 2 in press contact with the vibrator section 103 is turned by the travelling wave and the entry of the signal is informed to the carrier by the movement of the projections 2a.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wristwatch-type portable wireless device having a built-in receiver for receiving a calling signal from a wireless calling system carried on the wrist.

0002

[Prior Art] When a conventional portable radio device receives a paging signal from a base station in a radio paging system, it emits a ringing tone, flashes an LED, or drives a vibration motor to notify the carrier. structure was known. For example, JP-A-63-317898, JP-A-1-2
Such a structure is disclosed in Japanese Patent No. 4525 and the like.

0003

[Problem to be Solved by the Invention] However, when using a portable radio used in a conventional radio paging system in silent mode, it must always be kept in a visible position in front of the user and pay attention to the blinking of the LED. Without it, emergency calls cannot be answered immediately. However, whenever a portable radio is used in silent mode, it is extremely troublesome to have it in front of you, and you often forget to keep it in front of you. There was a problem in that there were situations in which the company could not fully demonstrate its capabilities.

Furthermore, in a structure using a vibration motor, a large eccentric weight is required in addition to the vibration motor body, and there is a problem that it cannot be made into a wristwatch type due to the weight and size. SUMMARY OF THE INVENTION An object of the present invention is to provide a wristwatch-type wireless device that does not emit sound, is small, and is lightweight, in order to solve these conventional problems.

[0005]

[Means for Solving the Problems] In order to solve the above-mentioned problems, the present invention provides a movable body incorporated in the movable body, a piezoelectric actuator that contacts a movable portion of the movable body, and a fixing means for supporting the actuator. a receiving means for receiving a paging signal transmitted from a base station of a radio paging system; an identifying means for identifying whether or not a paging signal received by the receiving means is a preset signal; and voltage generating means for generating vibration in the piezoelectric actuator when the means identifies that the calling signal is the same as a preset calling signal.

[0006]

[Operation] In the wristwatch-type portable radio configured as described above, a preset calling signal is received by the receiving means, and when this is identified as a predetermined calling signal by the identifying means, the voltage generating means A voltage is applied to both ends of the piezoelectric actuator, and by alternating the direction of the applied voltage, the piezoelectric actuator vibrates, and the mobile object moves, allowing the user to wear the above-mentioned portable radio on his or her arm. If you do this, you will feel the signal input.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Examples of the present invention will be described below with reference to the drawings. In FIG. 1, a rotatable moving body 2 is incorporated into a case 1 on the arm-mounted side. Switches 3 to 5 are power supply, data clear, and reception confirmation switches, respectively. FIG. 2 is a sectional view of a wristwatch type portable wireless device according to the present invention. The center shaft 101 is integrated with the fixed base 102, and the vibrating body portion 103 has an integrated structure with the center shaft 101 at the center portion. At this time, the vibrating body part 1
03 is made of an elastic member such as stainless steel, brass, or duralumin, and is substantially supported by the central shaft 101 at its center. The piezoelectric element 104 is made of at least one piece of piezoelectric ceramic with a hole in the center, or
A piezoelectric ceramic consisting of several pieces divided in the circumferential direction, with several patterns of electrode parts provided in the circumferential direction and polarized, is bonded to one side of the vibrating body part 103. The movable body 2 has a guide hole in its center so that it can rotate about the central axis 101 as a rotation center guide.
A pressure regulating mechanism including a spring member 106, a stopper 108, etc. brings the vibrating body portion 103 into pressure contact. The pressure regulating mechanism herein refers to the vibration body 10 in which the traveling wave component generated in the vibrating body part 103 and the piezoelectric element 104 can be most efficiently transmitted to the moving body 2 and converted into rotational motion.
This is for optimally controlling the contact pressure between the moving body section 103 and the movable body section 103.

A voltage output from a predetermined voltage generating circuit is applied to the piezoelectric element 104 via a lead wire 112 when a preset calling signal is received. At this time, the plurality of protrusions 2a provided on the movable body 2 rotate together with the movable body. In addition, in order to protect the protrusion 2a of the moving body, an elastically deformable protective film 111 is attached to the back cover 113.
is fixed. The rotation of the protrusion 2a is caused by the protection film 11.
1 to the carrier.

FIG. 3 is a diagram showing the principle of rotation of the moving body used in the present invention by a traveling wave component generated by a vibrating body. Reference numeral 301 is a vibrating body, and since a piezoelectric vibrator is bonded to an elastic member, bending vibration occurs. Here, when a traveling wave to the right is generated in the vibrating body 301, one point on the surface draws an elliptical locus to the left, so that the movable body 301
2 moves in the opposite direction to the traveling direction of the traveling wave.

FIG. 4 shows an embodiment of a block diagram of a portable wireless device according to the present invention. In FIG. 4, a receiving antenna 401, a receiving circuit 402, a waveform shaping circuit 403,
A calling name verification circuit 404 is connected to the input signal side of the CPU 405 in order. On the output signal side of the CPU 405,
Display circuit 406, display element 407, piezoelectric element drive circuit 4
08 and piezoelectric element 104 are connected to each other. The calling name verification circuit 404 includes a local calling name setting circuit 409.
is connected to the CPU 405, and a RAM 410 is connected to the CPU 405. There is a power switch 4 on the setting signal side of the CPU 405.
11 is connected, and a reception confirmation switch 412 and a data clear switch 413 are also connected.

A system flowchart of the present invention is shown in FIG. When a person wears the wristwatch type portable radio device of the present invention,
By turning on the power switch 411, the CPU 40
A signal can be sent to 5 to put it in a reception waiting state (step 501). When a calling signal is received from the calling station (step 502), it passes through the waveform shaping circuit 403 (step 503) and enters the calling name matching circuit 404. Here, the calling name of the own station is compared with the calling name of the calling name setting circuit 409 (step 504), and if it matches, the received data is stored in the RAM 410 by the CPU 405 (step 505).
The stored data is sent to the display circuit 406 via the CPU 405 and displayed on the display element 407 (step 506).

Next, the CPU 405 controls the piezoelectric element drive circuit 4.
08 (step 507), the piezoelectric element 104 is vibrated (step 508), and when the wearer confirms, the reception confirmation switch 412 is turned on (step 509), and the CPU 405 turns off the piezoelectric element drive circuit 408. Stop driving the piezoelectric element 104 (step 51
0), then when the data confirmation is completed, turn on the data clear switch 413 and clear the RAM 41 via the CPU 405.
The data of 0 is erased (step 511), and the state is set to wait for reception.

[0013] With this structure, a call to the own station can be reliably notified without relying on audiovisual information.

[0014]

[Effects of the Invention] As explained above, the present invention has the advantage that it can be made smaller, thinner, and lighter by using a means in which the mobile body moves when a calling signal is received.

[Brief explanation of the drawing]

FIG. 1 is a structural diagram of a wristwatch type portable wireless device according to the present invention.

FIG. 2 is a sectional view of the wristwatch-type portable wireless device of the present invention.

FIG. 3 is a diagram showing the principle of movement of the moving body of the present invention.

FIG. 4 is a block diagram of a wristwatch type portable wireless device according to the present invention.

FIG. 5 is a flowchart of the wristwatch type portable wireless device of the present invention.

[Explanation of symbols]

2. Mobile object 103 Vibrating body part 104 Piezoelectric element 401 Receiving antenna 402 Receiving circuit 403 Waveform shaping circuit 404 Call name verification circuit 405 CPU

Claims (1)

[Claims] Claim 1: A movable body incorporated in a movable manner; a piezoelectric actuator in contact with a movable portion of the movable body;
fixing means for supporting the actuator; receiving means for receiving a calling signal transmitted from a base station of a radio paging system; and identifying whether or not the calling signal received by the receiving means is a preset signal. 1. A wristwatch-type portable wireless device, characterized in that the wristwatch-type portable wireless device is equipped with a voltage generating device that generates vibration in the piezoelectric actuator when the identifying device identifies that the calling signal is the same as a preset calling signal.