JPH0787540A - Radio selective call receiver - Google Patents

Abstract

PURPOSE:To prevent the malfunction and the degradation of the reception performance due to the voltage drop of a battery at the time of informing an incoming call in the radio selective call receiver provided with an incoming call informing means using a vibrator. CONSTITUTION:The signal received and demodulated by an antenna 1 and a reception part 2 is inputted to a control part 3, and a selective call number is decoded by a decoder 4 and is compared with a number stored in an ID-ROM 5; and when they are equal with each other, a digital control signal 8 is sent to a motor driving part 7 to intermittently drive a motor 9 constituting the vibrator. Since the motor 9 alternately repeats rotation and stop at this time, the voltage drop of the battery due to continuous driving is prevented and the current consumption is reduced.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a radio selective call receiver provided with an incoming call notification means by vibration of a vibrator.

[0002]

2. Description of the Related Art Conventional radio selective call receivers have
The selective ringing signal included in the received wireless signal is compared with the individual selective ringing signal of the receiver that the user carries, and if they match, ringing or light emission from the speaker The user is notified of an incoming call by blinking with a diode, vibration with a vibrator, or the like. The vibration notification of the vibrator is usually to rotate the eccentric weight attached to the motor to generate vibration to give a sensation of the incoming call.This is done in a noisy place such as in a factory or during a meeting or public place. This is useful when a ringing tone is generated and it bothers other people.

[0003]

However, in the conventional radio selective call receiver provided with the incoming call notification means by the vibration of the vibrator, the battery for driving the receiver is also downsized in accordance with the downsizing of the receiver. Therefore, when a small battery is installed in this type of receiver, when the motor is continuously driven to notify the incoming call, there is a problem that a malfunction occurs due to the voltage drop of the battery and the reception performance is deteriorated.

The present invention solves such a conventional problem, and in a radio selective calling receiver equipped with an incoming call notification means due to vibration of a vibrator, malfunction and reception performance due to voltage drop of a battery occur. An object of the present invention is to provide an excellent radio selective call receiver capable of preventing deterioration.

[0005]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention is adapted to intermittently drive a vibrator via a drive unit by a signal from a control unit for detecting an incoming call.

[0006]

Therefore, according to the present invention, during the incoming call notification operation, the vibrator alternately drives and stops driving, whereby the voltage drop of the battery during the incoming call notification operation can be prevented and a stable operation is achieved. And reception performance can be obtained.

Further, according to the present invention, by alternately repeating driving and stopping of driving of the vibrator, it is possible to reduce current consumption during the incoming call notifying operation as compared with the case of continuous driving, and to reduce the battery consumption. Can extend the life of the.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows the configuration of an embodiment of the present invention. In FIG. 1, 1 is an antenna of a radio selective calling receiver, and 2 is a receiving unit thereof, which amplifies and demodulates a received radio signal. A control unit 3 has a decoder 4 for decoding the received data, an ID-ROM 5 storing an ID number which is an individual selective calling number of the receiver, and a CPU 6 for controlling the decoder 4 and the ID-ROM 5. 7
Is a motor drive unit, which receives the digital control signal 8 output from the decoder 4 at the time of call notification and drives the motor 9. The motor 9 has an eccentric weight attached to its rotating shaft to form a vibrator.

Next, the operation of the above embodiment will be described.
The radio signal received and demodulated by the antenna 1 and the receiving section 2 is input to the control section 3, and the selective calling number is decoded by the decoder 4 and compared with the individual selective calling number stored in the ID-ROM 5. If they match,
The decoder 4 outputs a digital control signal 8 to the motor drive unit 7, and the motor 9 is intermittently driven based on the digital control signal 8. Therefore, the motor 9 alternately repeats rotation and rotation stop while the digital control signal 8 is output, and the vibration is felt by the user in a pulsed manner.

As described above, according to the above-described embodiment, the incoming call notification is performed by the intermittent driving of the motor 9, so that the voltage drop of the battery is suppressed and the stable operation is performed, and the motor during the incoming call notification is notified. Since the total rotation time can be shortened, current consumption can be reduced. Since the intermittent operation of the motor 9 is determined by the duty ratio of the digital control signal 8 that drives the motor 9, this duty ratio may be adjusted according to the user's preference.

The above embodiments describe the present invention in the case of the simplest configuration. The present invention is not limited to the vibration of the vibrator but other incoming call notification means and message display such as ringing and blinking. It is needless to say that the present invention can be applied to radio selective call receivers having various conventionally known structures including means and the like.

[0012]

As is apparent from the above-described embodiment, the present invention employs an intermittent operation in which driving and stopping of the vibrator are alternately repeated at the time of alerting the incoming call due to the vibration of the vibrator. It is possible to prevent the voltage drop of the battery due to the continuous current consumption, the occurrence of malfunctions and the deterioration of the reception performance.

The present invention also has the effect that the current consumption can be reduced and the life of the battery can be extended because driving and stopping of the vibrator are alternately repeated during the incoming call notification operation.

[Brief description of drawings]

FIG. 1 is a schematic block diagram showing the configuration of a radio selective call receiver including an incoming call notification means for vibrating a vibrator according to an embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Antenna 2 Reception part 3 Control part 4 Decoder 5 ID-ROM 6 CPU 7 Motor drive part 8 Digital control signal 9 Motor

Claims (1)

[Claims] 1. A radio selective call receiver equipped with an incoming call notification means for vibrating a vibrator, which detects an incoming call and outputs a signal for intermittently driving the vibrator, and a control section from the control section. A radio selective calling receiver, comprising: a drive unit for intermittently driving the vibrator by a signal.