Abstract: An emergency signaling system with integrated load management functionality is provided wherein the load management circuitry is alternatively operable in programming and operating modes. The system includes a keypad, control head, control unit and a plurality of signaling features selectively activated by the control unit in the operating mode. The load management circuitry automatically sheds loads from the signaling system in response to an indication from the electrical system powering the signaling system that an energy drain is occurring at the energy source that will cause disruption to other more important systems—e.g., the ignition system in a vehicle.

Abstract: When a dividing ratio data is written in a counter/timer register 530, a counter/timer circuit 534 divides a frequency of an oscillation signal of the oscillator 532 as much as the dividing ratio data. When an output enabling data is written in the port B register 536, a variable gain control signal is output from an envelope producing circuit 538. A variable gain control circuit 540 changes amplitude of a dividing signal as much as the value responsive to a voltage of the variable gain control signal. When an output disabling data is written in the port B register 536, the variable gain control signal is not output from the envelope producing circuit 538. The variable gain control circuit 540 stops the amplitude control of the dividing signal.

Abstract: An electronic siren emulates the sound of a mechanical siren using a dynamic algorithm and look up tables to generate a series of wave sets, each wave set including one fixed frequency wave and one variable frequency wave. A micro controller stores the algorithm and look up tables and executes the algorithm on command to produce a digital output emulating the mechanical siren. The digital output is converted to an analog signal that is applied to a class D amplifier. A switching power supply provides 70 VDC to the output stage of the amplifier. This arrangement produces 126 dB of sound pressure at a distance of 10 feet from the reverse folded horn speaker. The electronic siren generates little heat and requires only 10 amps of current from the vehicle electrical system.

Abstract: A driver circuit for an alarm tone transducer includes a signal generator for generating a first signal, a converter for converting the first signal into a second signal for the alarm tone transducer, a battery as a power supply for the circuit, and a circuit for raising the voltage to increase the voltage supply for the signal generator.

Abstract: A programmable electronic circuit is disclosed. The circuit includes a CPU, signal-generating circuitry, and RC circuitry having at least two capacitors, such that when both of the capacitors are switched into the RC circuitry by the CPU, a signal is produced from an output of the signal-generating circuitry that is longer in duration than when one of the capacitors is switched into the RC circuitry.

Abstract: A doorbell system having a sound memory for storing and playing a CD quality doorbell sound is disclosed. Said doorbell system includes a receiver unit for receiving an indication of a doorbell button being pressed, a code detector for commanding the sound memory to output stored sound signals and sound producing means for outputting a CD quality sound. Also disclosed is a method for storing a CD quality sound into a doorbell system.

Abstract: A ball speed detecting assembly has a detecting device consisting of a bracket adapted to firmly stand on the ground and having an opening; a net securely connected to the bracket to cover the opening; an impact receiving element securely connected to the bracket by sensors which are secured to corners of the bracket so that the sensors are able to detect the impact of the ball which hits the impact receiving element; and a displaying device consisting of a microprocessor electrically connected with the sensors and having data prestored in the microprocessor for matching the impact of the ball; and at least one speaker electrically connected with the microprocessor for sounding according to a signal from the microprocessor.

Abstract: A controlling method and apparatus of constant-frequency sound-production for an electric horn are described. These are achieved. And comprised by a monolithic-processor. It's characterized in that frequency pulse output from constant-frequency oscillator is collected as base resonant frequency of each horn (accuracy at least +0.05 HZ), thereby the horns can operate in optimum condition driven by electric driving signal, duty cycle of the driving signal can be arbitrarily adjusted in the range of 1-99% based on sound production feature of different horns. It overcomes the shortcomings that sound changing and sound level descending may arise under the influence of environmental temperature and motor vehicle's voltage variation in the horn with contact and various present electric horns. It also can be used as a signal source having adjustable frequency and pulse width.

Abstract: An accessory which produces distinct sounds in order to alert others of the presence of a bicycle. The accessory is formed of a housing, sound producing assemblies, and a mounting system. The mounting assembly may be clamped around left or right members of bicycle forks, frame, stays, or braces. Housing of the accessory will accommodate mechanical or electronic sound producing elements which are interchangeable and may be used individually or in combination. When installed and the bicycle is in motion, a variety of sounds may be produced depending on the configuration of the sound producing components.

Abstract: The present invention relates to a device for augmenting an alarm signal generated by an analyte monitoring device, e.g., the GlucoWatch® (Cygnus, Inc., Redwood City, Calif.) biographer glucose monitoring device, for improving the alarm signal's effectiveness in alerting the user, and/or for communicating the signal to a person or person(s) other than the user, or to a trained assistance animal.

Abstract: A switch's click tone output unit is provided, which includes: a switch unit having a switch and an operation signal generating means to generate an operation signal when the switch is operated; a click tone signal generating means to generate a click tone signal including click tone information according to generation of the operation signal; and a tone outputting means to output a click tone corresponding to the click tone information, wherein a tone outputting means to output a tone corresponding to an audio tone signal generated by an audio unit and including audio tone information is applied as the tone outputting means to output the click tone. A switch's click tone outputting method includes a step of outputting a click tone from a tone outputting means for an audio system when a switch is turned on.

Abstract: Electronic apparatus incorporating a loudspeaker, wherein the loudspeaker comprises a bending wave panel member having a user-accessible surface, an electro-acoustic vibration exciter on the panel member to introduce bending wave energy into the panel member in response to an electrical signal applied thereto, and at least one touch sensitive area on or associated with the said user-accessible surface and responsive to user contact.

Abstract: A personal security system including a base unit which communicates emergency voice information to a surrounding area through and amplified speaker/siren system. The security system includes a held-held remote “panic button” unit to allow activation of an amplified call for help. The unit uses an RF transmitter and receiver to trigger a digitally recorded voice/siren when the panic button is pushed. Once triggered, the pre-recorded voice and or siren alarm will sound continuously until positively reset. The base unit of the present invention is suitable for installation inside a vehicle.

Abstract: The reproducing device is prevented from being taken out because the reproducing device becomes controllable by operation of the device only when a visitor who borrowed the reproducing device enters through a specified entrance and that the reproducing device becomes uncontrollable by operation of the device when the visitor has come out of the exit. When a receiving means of the reproducing device receives an ID code signal for enabling control by a command from an operation means of the device, the reproducing device becomes controllable by a command from the operation means. When the receiving means receives another ID code signal for disabling control by a command from the operation means, control by a command from the operation means is disabled and a reproducing means of the reproducing device outputs voice information requesting a return of the device.

Abstract: A doorbell system having a sound memory for storing and playing a CD quality doorbell sound is disclosed. Said doorbell system includes a receiver unit for receiving an indication of a doorbell button being pressed, a code detector for commanding the sound memory to output stored sound signals and sound producing means for outputting a CD quality sound. Also disclosed is a method for storing a CD quality sound into a doorbell system.