Abstract: A method and a system for providing IP video intercom transmission from surveillance cameras make it possible to transmit video stream from IP cameras to a user's IP video monitor installed in a user's apartment. The user's IP video monitor is designed to receive an electrical signal from a standard intercom system installed directly in the called user's apartment. An electrical signal from the standard intercom system is a signal only for activating video stream from an IP camera when there is an electrical signal of a certain polarity and magnitude from at least one call button of the standard intercom system installed outside the called user's apartment for communication with said user. A video stream from the IP camera is transmitted to the user's IP video monitor using a Wi-Fi network installed in the user's apartment.

Abstract: System, methods, and other embodiments described herein relate to providing audio information in a vehicle. In one embodiment, a method includes determining whether at least one vehicle alert is to be provided by the vehicle, and outputting, in response to determining that the at least one vehicle alert is to be provided, an audio signal for the at least one vehicle alert at a plurality of frequencies. The plurality of frequencies range from a predetermined minimum frequency value to a predetermined maximum frequency value.

Abstract: A mobile device software app facilitates a user's identification of a product suitable for various vehicle types and operating environments. The app configures a sensor in the device to sample ambient sound or light in the vicinity of the vehicle, calculates an intensity level value for the sample, compares the value to a list of specification intensity values corresponding to vehicle accessory products, and generates a list of products having intensity values greater than that of the sampled sound or light. The app optionally provides for user selection of a product and for viewing product literature. Users can also access detailed technical installation information, listen to sound samples, and locate product vendors.

Abstract: Systems, apparatuses, and methods are provided that include alterable characteristics and such alterable characteristics may be coordinated. Such systems, apparatuses, and methods may include wearable apparatuses and such alterable characteristics may relate to illumination conditions. In one example, a wearable apparatus includes an illumination device that may be manually manipulated between two different illumination conditions. In another example, two wearable apparatuses may each include an illumination device and operation of the two illumination devices may be coordinated. In a further example, operation of an apparatus may be controlled by a third party or venue. Still another exemplary system may include a capturing device for capturing a characteristic of an object and controlling an output device of an apparatus to operate with the same characteristic as the captured characteristic.

Abstract: An adaptive-alarm system and its uses in the context of medical devices, such as patient monitors, are described. In one embodiment, the monitor has a processor configured to receive and analyze an input relating to ambient sounds. The monitor may generate an alarm signal in response to physiological data that meets a defined requirement, such as a physiological alarm condition. The alarm signal that is generated by the monitor is substantially free of masking by the ambient sounds.

Abstract: An apparatus for controlling a vibration includes a vibration transfer unit; at least one pair of oscillators disposed spaced apart from each other in the vibration transfer unit, and configured to generate a vibration in the vibration transfer unit; at least one driver configured to selectively drive the at least one pair of oscillators; and a controller configured to control the at least one driver and thereby move a center of the vibration within the vibration transfer unit so as to create a moving vibration sensation.

Abstract: A method for controlling a vehicle to emanate an audible alert including determining when the vehicle is operating, and controlling a speaker system in the vehicle to emanate the audible alert outside of the vehicle when the vehicle is operating based on stored information representative of an internal combustion engine (ICE) noise profile. The audible alert has a sound profile including a simultaneous emanation of first, second and third audible frequency components having first, second and third frequencies, respectively, with the first and second frequencies emanating at first and second sound pressure levels greater than first and second representative sound pressure levels of the ICE noise profile at the first and second frequencies, respectively, and the third frequency emanating at a third sound pressure level less than a third representative sound pressure level of the ICE noise profile at the third frequency.

Abstract: An OFDM (Orthogonal Frequency Division Multiplexing) demodulator includes: an FFT (Fast Fourier Transform) circuit for performing a fast Fourier transform on an OFDM signal; a circuit for extracting an SP (Scattered Pilot) signal from the fast Fourier transformed signal; a circuit for adding a positive or negative sign to the extracted SP signal; a memory for temporarily storing the signed SP signal and an information transmission signal; a carrier interpolation circuit for performing time axis interpolation and frequency axis interpolation on the signed SP signal by a plurality of methods; a complex division circuit for performing a complex division of the information transmission signal by interpolated data; and a memory interface for detecting a timing a prescribed number of signed SP signals have been obtained and an output timing of the interpolated data according to the interpolation method.

Abstract: An audible alarm has first and second acoustic chambers that deliver sound to respective first and second horns. A phase adjustment circuit for delays the phase of sound generated in one of the two chambers so that sound emerging from the two horns is delivered with the same phase and same frequency, and emerging sound from the two horns is additive.

Abstract: A sound variation indication apparatus includes a comparison element, an interval checker, and an indication generator. The comparison element receives an audio signal and compares it to a check value to provide a status signal indicating a presence and absence of an expected sound input. The interval checker detects the status signal at predetermined intervals, to provide an interval output. The indication generator generates an indication if the interval output is an absence representation. A process of generating an indication on absence of a sound input includes providing an audio signal based on a sound input and comparing the audio signal to a check value, providing a status signal indicating a presence and absence of the sound input. A status signal value is determined at predetermined intervals, to provide an interval output. An indication is generated if the interval output is an absence representation.

Abstract: A circuit of the present invention is a driving circuit for driving a vibrator having a mechanical vibration system which resonates at a resonance frequency. The driving circuit outputs to the vibrator at least two signals of different frequencies which are included in a frequency range including the resonance frequency. The vibrator has a function of converting an electric signal into at least one of a sound and a vibration.

Abstract: 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 band sound.

Abstract: A multi-function electronic warning horn system comprises a couple of horns (1, 2) and a microprocessor (6), integrated in an electronic module (16) comprising a voltage adjuster (13), an oscillator (17), power stages (3, 4) and a control circuit (7). Horns (1, 2) are controlled by either the push-button (5) of the steering wheel for the traditional function of acoustic signaling or by a coded signal transmitted to microprocessor (6) by the “intelligent” electronic unit or onboard computer of the vehicle for the function of buzzer.

Abstract: In a battery operated IR transmitter having at least one IR LED energized by a source of voltage for passing current during transmission of pulses of data, the IR transmitter includes an energy regulator for maintaining transmission energy through the at least one IR LED substantially constant regardless of fluctuations in the voltage. The current is passed for a time duration that increases as the voltage decreases, the time duration being a function of the voltage so as to maintain the transmission energy substantially constant.

Abstract: In a signal generation circuit for a compound acoustic actuator that generates a sound and a vibration in response to a frequency of a signal input to the compound acoustic actuator, the signal generation circuit comprising a plurality of signal data stored in a memory to generate a plurality of signals having mutually different frequencies, the plurality of signals at least including a signal, a frequency of which is equal to a resonant frequency causing the compound acoustic actuator to generate the vibration, a synthesizing means to synthesize a plurality of drive signals in accordance with the plurality of signal data so as to cause the compound acoustic actuator to generate the vibration, and a sweeping means to sweep the plurality of drive signals, repeatedly.

Abstract: In a signal generation circuit for a compound acoustic actuator that generates a sound and a vibration in response to a frequency of a signal input to the compound acoustic actuator, the signal generation circuit comprising a plurality of signal data stored in a memory to generate a plurality of signals having mutually different frequencies, the plurality of signals at least including a signal, a frequency of which is equal to a resonant frequency causing the compound acoustic actuator to generate the vibration, a synthesizing means to synthesize a plurality of drive signals in accordance with the plurality of signal data so as to cause the compound acoustic actuator to generate the vibration, and a sweeping means to sweep the plurality of drive signals, repeatedly.

Abstract: A sounder device includes a piezoelectric resonant transducer, an amplifier and a coupling transformer to drive the transducer, an electronic signal produced to provide an input signal to the amplifier, and in which the electronic signal producer includes at least two lower frequency oscillators, a logical “OR” circuit having inputs from each of the lower frequency pulse oscillators, a resonant frequency pulse oscillator having a higher frequency near the resonant frequency of the transducer, a logical “AND” circuit having a first input connected to the output of the logical “OR” circuit, a second input connected to the output of the resonant frequency oscillator, and having an output connected to the amplifier input.

Abstract: A sounder device includes a piezoelectric resonant transducer, an amplifier and a coupling transformer to drive the transducer, an electronic signal produced to provide an input signal to the amplifier, and in which the electronic signal producer includes at least two lower frequency oscillators, a logical “OR” circuit having inputs from each of the lower frequency pulse oscillators, a resonant frequency pulse oscillator having a higher frequency near the resonant frequency of the transducer, a logical “AND” circuit having a first input connected to the output of the logical “OR” circuit, a second input connected to the output of the resonant frequency oscillator, and having an output connected to the amplifier input.

Abstract: An apparatus for deterring woodpeckers from tapping on and excavating within a utility pole or the like includes a housing having mounting flanges for direct attachment to the pole so as to receive vibrations therefrom. A transducer is attached to the mounting wall so as to convert the vibrations preferentially over airborne sounds into signals. A circuit compares the vibrations with a long term average and emits an output in response to detection above a threshold, whereupon the outputs are counted and if the number within a predetermined time exceeds a preset minimum a sound transmitter is actuated for emitting a deterrent sound externally of the housing. A memory contains a plurality of separate audible deterrent sounds including some of the same species and some of predators which act as a deterrent to the woodpeckers and these are selected sequentially and transmitted after a delay to avoid habituation.

Abstract: A sound generator includes a memory bank storing user-selectable recorded sounds, a microprocessor that can quasi-randomly time-delay at least one of the recorded sounds, and a mixer that can combine a user-selected recorded sound and the time-delayed sound for output by speakers or earphones. The microprocessor can also cause the output sound to include a microprocessor-selected one of the recorded sounds for inclusion during playback of a user-recorded sound.

Abstract: A notifying device adapted to give notification with both sound and vibration includes a notifying unit 2 which comprises a first vibrator drivable at an audio-frequency with a first drive signal for producing sound waves, and a second vibrator drivable with a second drive signal at a frequency, up to several hundred of hertz, lower than the driving frequency of the first vibrator for producing a perceivable vibration. A notifying signal generating circuit 5 is connected to the unit 2 via a switch 59.

Abstract: An electronic horn for mimicking a multi-frequency tone includes a wave signal generator for generating an input signal and a complex signal generator for generating a complex signal across a transducer to mimic the sound and sound intensity of an electromechanical horn. The complex signal generator produces a complex output signal which may derive from a plurality of product signals, each product signal being derived by processing the input signal. A first product signal drives the transducer through a full bridge motor driver circuit and a second product signal is converted to a control signal by the signal processor circuit. The control signal is used to control the full bridge motor driver circuit to drive the transducer.

Abstract: A driver circuit 1000 for driving functional devices, such as an LED 1020-1023, a buzzer 1060, a voltage converter or an EL-lamp, and a method of operating the driver circuit are provided. The circuit includes an inductor 1030, first and second connection points for connection of a voltage source 1050, switching means 1040 which when in a first state allows an electrical current to flow from the first connection point and through the inductor to thereby charge the inductor with energy and when in a second state substantially prevents an electrical current from flowing from the first connection point to the inductor and at least two functional devices, the function of which are activated when energy is discharged from the inductor to the at least two functional devices.

Abstract: 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 band sound.