An alarm mechanism is provided. The alarm mechanism includes a hardware component and a software component. The hardware component includes first and second registers. The first register is adapted to store a value that indicates a change in state of at least one alarm and the second register is adapted to store current states of each of the at least one alarm. The software component is responsive to interrupt requests from the hardware component and is adapted to read the first and second regis...

A reversing alarm for a vehicle emits an audible signal in the form of pulses of broad band sound when the vehicle is put into reverse gear. The broad band sound allows persons in the vicinity to locate the vehicle, as the human brain is able to process broad band sound to pinpoint the location of the sound source in a way which is not possible with single tone sounds. The alarm is implemented via a simple electronic circuit which uses a zener diode as a signal generator 20 to generate the broad...

An alarm apparatus attached to an electronic device, activated by unplugging AC power cord of the apparatus device from a power outlet, irrespective to the states of the main switch and the device switch. If the power cord is unplugged from the outlet, it disconnects DC continuity component from the alarm circuit, breaks a voltage divider circuit, changes the voltage level high, and activates the alarm system. The DC continuity component could be either an external component, the power transform...

A flood alarm is disclosed. In an illustrative embodiment, the flood alarm includes a float assembly and a telephone system interface module connected to the float assembly. A method of indicating a flood in a structure is also disclosed.

A programmable, microprocessor-based alarm clock apparatus provides seven independent alarms each one of which is specifically tied to one of the seven days of the week. Each alarm may be independently set in terms of appointed alarm-sounding time and active state (either on or off).

An alarm system includes an alarm signalling device having a transceiver for transmitting an alarm signal. The system includes a responder device for receiving the alarm signal, the responder device having a device for signalling an alarm. The alarm signalling device includes an interface for receiving user information and an activating device for activating the transceiver to transmit the alarm signal in response to the user information. The transceiver device further includes a device for rece...

An alarm device, including a detector and an alarm responsive to the detector, is contained in a housing adapted to be mounted adjacent to a ceiling. The housing is provided by a hollow body having an upper circumferential edge for facing the ceiling and a lower circumferential edge that defines an aperture into the housing interior. A plurality of elastically bendable, elongate members is disposed in the housing around the aperture to engage the surface of an electrical cord to carry the alarm ...

A vibrational alarm device for use in combination with an alarm clock, includes a receiver for receiving a RF alarm signal transmitted by the alarm clock, an operating circuit for providing an operating signal in response to the receiver receiving the alarm signal, and an electro-mechanical vibrator for vibration in response to the operating signal provided by the operating circuit. A casing houses the receiver, the operating circuit, and the vibrator for vibration by the vibrator to provide a v...

An alarm system sensor (10) monitoring movement of an object (D) and placing the system into alarm when the object moves more than a predetermined distance from a predetermined position. First and second reed switches (16, 18) are located in a predetermined orientation relative to each other and in tandem to the object. Bias magnets (24, 26) are used with the reed switches. A magnet (20) is movable with the object and produces a force simultaneously sensed by both reed switches. This force maint...

A pillow capable of being highly useful and convenient to a user. An alarm is arranged at a predetermined portion of a stuffed doll which is made in imitation of a real or fanciful animal or the like. The alarm may be actuated through a timer. The timer may be driven through a cell or a spring. The alarm is constructed so as to generate sound, voice, vibration, light or the like.