JPH049793A - Alarm device - Google Patents

Abstract

PURPOSE:To achieve alarm without disturbing others by enabling an alarm sound to be transmitted from a clock itself to a sound-generating device which is fitted on an external ear of a user using a radio wave. CONSTITUTION:In a clock itself 1, a contact 131 is closed when a current time reaches a time which is set by a time-setting means 11 by a clock means 12 and the setting time is detected 13, thus enabling a low-level signal to be fed to a transmitter 14, where a radio frequency carrier is modulated by a specified alarm tone signal and then the radio wave is radiated into space. A sound- generating device 2 for it is fitted to an external ear 3 of a human being and the radio wave is received by a receiver 21. After it is demodulated by the receiver 21 and an alarm sound is taken out, it is amplifier, thus enabling an electrical acoustic conversion device 23 to be driven. In this manner, only those who have the device 2 can listen to the alarm sound. Power is supplied to each equipment of the device 2 from a power supply device 24 of batteries.

Description

[Detailed description of the invention] [Industrial application field]

The present invention relates to an alarm device.

[Prior art]

Conventional alarm clocks output an alarm sound as a buzzer sound, a bell sound, or a speaker sound at a set time.

[Problem to be solved by the invention]

When many people are sleeping in the same room on a group trip, etc.
- Some people, or only some people, may need to get up early in the morning. However, when setting an alarm clock, there is a problem in that the alarm sound disturbs other people who do not need to get up early. The present invention has been made to solve the above problems, and its purpose is to provide an alarm device with an alarm function that is effective only for a specific person.

[Means to solve the problem]

The structure of the invention for solving the above problem is such that an alarm device includes a time setting means for setting an alarm time, a clock means for measuring the time, and a time measured by the clock means at the time set by the time setting means. a clock body device comprising a set time detection means that outputs a signal when the set time has been reached, and a transmitter that transmits a modulated signal of an alarm sound when the set time detection means detects the set time; A receiver that receives radio waves, an amplifier that amplifies the output of the receiver, an electroacoustic transducer that outputs the output of the amplifier as audio, a power supply device that includes a battery that supplies power to each device, and each device is arranged. It consists of a container that can be attached to a human's external ear, and a sounding device.

[Action and effect of the invention]

The sounding device is attached to the outer ear of a person who desires an alarm clock. When the set time is reached, an alarm sound is transmitted from the clock main unit to the sound generating device via radio waves. and,
Since the sound generation device emits sound in the outer ear, no one other than the person wearing the sound generation device can hear the alarm sound. Therefore, even if many people are sleeping in one room, the alarm sound will not disturb others.

【Example】

The present invention will be described below based on a specific example. FIG. 1 is a diagram showing the configuration of an alarm device according to an embodiment, and FIG. 2 is a perspective view showing its external shape. 1 is the watch body, and 2 is a sounding device. The time setting means 11 and the clock means 12 have the same structure as a conventionally well-known alarm clock. In conventional electric alarm clocks, when the current time reaches the set time, the electrical contacts close to generate a bell sound. When this electrical contact closes, the sounding device is driven. This device is provided with set time detection means 13 for detecting the closing of this electrical contact. The set time detection means 13 is composed of a contact 131 whose one end is grounded and a resistor R whose other end is connected to a power source. The contact 131 is closed when the current time determined by the clock means 12 reaches the time set by the time setting means 11. As a result, the transmitter 14 has the following information:
A low level signal is input. The transmitter 14 modulates a radio frequency carrier with a predetermined alarm signal, and then radiates the radio waves into space. On the other hand, the sounding device 2 is attached to the human external ear 3,
In the sound device M2, the radio wave is received by the receiver 21. After the receiver 21 demodulates and extracts the alarm signal,
Output to amplifier 22. After amplifying the wake-up sound signal in the amplifier 22, the wake-up sound signal drives an electroacoustic transducer device 23 such as a speaker. This results in
Only those wearing the sound device can hear the alarm tone. Note that each device of the sound generating device 2 is powered by a power supply device 24 composed of a dry cell battery.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing the configuration of an alarm device according to a specific embodiment of the present invention, and FIG. 2 is a perspective view of the device. 1- Clock body 2 ° sounding device clock setting means 12 clock means setting time detection means 14 transmitter 1 contact 21 receiver electroacoustic transducer

Claims (1)

[Scope of Claims] Time setting means for setting an alarm time; clock means for measuring time; and outputting a signal when the time measured by the clock means reaches the time set by the time setting means. A clock body device comprising a set time detection means, and a transmitter that transmits a modulated alarm signal when the set time detection means detects the set time; and a receiver that receives radio waves from the transmitter. an amplifier for amplifying the output of the receiver; an electroacoustic transducer for outputting the output of the amplifier as audio; a power supply device including a battery for supplying power to each of the devices; , a container that can be attached to a human's external ear, and a sounding device.