Bizarre Patents
An enclosure for small animals which is wearable on the front or back of an animate being.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7913565 | Method and system for predicting long-term exposure to a hazardous environment Certain embodiments of the present invention provide a system and method for predicting long-term exposure to a hazardous environment based on a user-controllable measurement interval of short duration. In an embodiment, the system includes an electronic circuit for... | 03/29/2011 |
| 7882743 | Method and system for noise dosimeter A personal noise dosimeter having functionality for increasing the dynamic range of the device. A microphone provides a signal to an RMS detector, which provides a DC signal to a two-stage amplifier circuit. The outputs of the amplifiers are provided to a processor ... | 02/08/2011 |
| 7836771 | Method and system for an ultra low power dosimeter Certain embodiments of the invention may be found in an ultra low power dosimeter assembly. The ultra low power dosimeter assembly may include a low power voltage source and a table circuit. The table circuit may be adapted to convert an input voltage to a second vo... | 11/23/2010 |
| 7836770 | Method and system for noise dosimeter with quick-check mode and earphone adapter A noise dosimeter with capability to rapidly predict noise exposure over an extended time period based on a measurement of short duration. Either an acoustic or an electrical earphone adapter provides a convenient means to connect the noise dosimeter to an external ... | 11/23/2010 |
| 7331236 | Pressure sensor A sensor and insertion assembly 2 is used for intravascular measurement of pressure in a living body. The assembly includes, a sensor chip 6 having a substrate body 8 with a recess covered by a pressure sensitive film 10 thereby forming a... | 02/19/2008 |
| 7316162 | Method of determining the sound pressure resulting from a surface element of a sound emitting device A three-dimensional array (10) of microphones (M) is used to determine the three-dimensional sound field above a surface element (ΔS) of a sound emitting surface (S), and the air-particle velocity (un) at the surface element (ΔS) is determined us... | 01/08/2008 |
| 7305886 | Noise detecting apparatus An accurate measure of normally operating noise is required for a useful noise measurement system. A device is needed to make a representative measure of the boat's acoustic power using measured boat sound level with integrated corrections for sensed distance to the... | 12/11/2007 |
| 7289637 | Method for automatically adjusting the filter parameters of a digital equalizer and reproduction device for audio signals for implementing such a method A method is proposed for automatically adjusting the filter parameters—center frequency, quality and amplification or attenuation—of at least one digital equalizer which is a component of a reproduction device for audio signals in a vehicle passenger compartment... | 10/30/2007 |
| 7270006 | Single button operating sound level meter and method therefor A sound level monitor device has a microphone. A sound level measurement circuit is coupled to the microphone. The sound level measurement circuit takes sound signals monitored by the microphone and converts the sound signals to digital signals. A display is coupled... | 09/18/2007 |
| 7199720 | Hearing protection warning device An apparatus for hearing protection comprising: a body having coupling means, said coupling means configured to attach to a body part; a sound sensor disposed in said body, said sound sensor configured to sense ambient sound; a sound processor coupled to said sound ... | 04/03/2007 |
| 7156201 | Ultrasonic rod waveguide-radiator The present invention comprises an ultrasonic resonant rod waveguide-radiator with at least three cylindrical sections, one of which is an entrance section having a planar entrance surface and another of which is an exit section having a planar exit surface, and at ... | 01/02/2007 |
| 7151835 | Personal noise monitoring apparatus and method The present invention relates to a method, system and device for monitoring noise received by individuals operating in noisy environments. The device comprises a substantially credit card size housing and can be worn as a “badge”. The device includes a mo... | 12/19/2006 |
| 7098844 | Acceleration detector with integral vehicle parameter display using a vehicle interface Calibration of an acceleration detector is initiated by a user depressable button such as a button indicating a vehicle is at rest and/or by the detector reading an OBDII vehicle communication protocol to determine the condition of the vehicle. Calibration permits m... | 08/29/2006 |
| 7058184 | Acoustic measurement method and apparatus Method and apparatus for simultaneous acoustic measurement at a point (M) in space of the three components of the sound intensity vector. A preferred omnidirectional vector probe (40) includes a central ring (42) with four small, microphones on tubes a... | 06/06/2006 |
| 6997057 | Sound pollution surveillance system and method A system for detecting a sound level of vehicles comprising sensor units for detecting vehicles on a road and for measuring a sound level of a detected vehicle. A data processing unit is connected to the sensor units and has an identification recorder for operating ... | 02/14/2006 |
| 6978677 | Apparatus for measuring ultrasonic power An ultrasonic power meter is provided for measuring ultrasonic power emitted by a device (18) under test. The meter includes a casing forming a chamber (16) within which an ultrasonic absorber (14) formed from polyurethane material is located. O... | 12/27/2005 |
| 6178820 | Sensor for measuring acceleration and sound pressure The invention relates to a sensor for measuring acceleration and sound pressure, the sensor comprising a first pressure sensitive film (2) for measuring pressure (P) and second pressure sensitive film (5) having a mass (6) disposed thereon for measuring a... | 01/30/2001 |
| 5072415 | Method and microprocessor-based apparatus for directly measuring a particular index for the evaluation of the environmental noise pollution This invention relates to a method and a microprocessor-based apparatus for directly measuring the noise using a nuisance index (LDI) bound to two physical parameters of the noise: the average energy level (LE) and the fluctuation le... | 12/10/1991 |
| 4920311 | User selection of meter ballistics User selection of meter ballistics is accomplished by separating the meter display from the meter drive circuitry. An input signal is input in parallel into appropriate level determining circuits, with the outputs being selected for processing by a microp... | 04/24/1990 |
| 4736130 | Multiparameter generator for ultrasonic transducers An ultrasonic frequency generator sets a plurality of parameters for a transducer to enable an ultrasonic operation to meet a plurality of criteria. The generator produces sets of power trains, each formed of a sequence of power bursts of an ultrasound si... | 04/05/1988 |
| 4675835 | Device for compensating reproduction errors in an electroacoustic transducer In order to compensate reproduction errors in electroacoustic transducers (W), for example electrodynamic loud-speakers, microphones and pickup systems, computer circuits are used. In a digital computer circuit, the electrical input signals (U1... | 06/23/1987 |
| 4620445 | Portable acoustic intensity measuring device A portable acoustic intensity measuring device comprising a pair of electroacoustic transducers at a positioned predetermined distance from one another. The measuring device utilizes analog summing, subtraction, integration and multiplier means for measur... | 11/04/1986 |
| 4554639 | Audio dosimeter An audio dosimeter for use by an individual for measuring exposure to sound which contains the following components: (a) an electronic microphonic sound sensor means, (b) an amplifier and weighting circuit, (c) an x-squared detector circuit, (d) a temperature compe... | 11/19/1985 |
| 4552022 | Sound discriminator tester A device for selecting the proper sensitivity and acceptable background noise level for sound discrimination switches used for detection of selected sounds where the detection device includes peak signal detectors to receive audio voltage generated by the... | 11/12/1985 |
| 4307385 | Noise monitoring apparatus An apparatus for monitoring the noise which impinges a human ear and for generating a signal representing the noise level accumulated over a period of time. Typically, the apparatus can be located in a hearing protector worn by a worker in a noisy environ... | 12/22/1981 |
| 4287771 | Vehicle pass-by and community noise monitor The disclosure is related to a sound level meter including unique features for measuring, storing and displaying a maximum sound level generated by a passing motor vehicle or the like. The meter operates as an ordinary sound level meter until a predetermi... | 09/08/1981 |
| 4281551 | Apparatus for farfield directional pressure evaluation An apparatus for obtaining the farfield directional pressure intensity of a sonorous source placed in a fluid medium from pressure measurements taken in the nearfield of the source is disclosed. An acoustic antenna is placed in the nearfield of the source... | 08/04/1981 |
| 4277980 | Apparatus and method for indicating sound levels A sound level indicator apparatus includes a signal processing element which detects and processes sound pressure waves into quantifiable electrical signals. The indicator also includes an adjustment member which adjusts the quantifiable signals to compen... | 07/14/1981 |
| 4276781 | Method of and arrangement for adapting a hearing aid A method of and apparatus for accurately adjusting a hearing aid. First a wide-band reference signal of relatively low sound level, e.g. 40 to 50 dB, is reproduced via a loudspeaker. The gain of the hearing aid is adjusted so that the person wearing it ca... | 07/07/1981 |
| 4257273 | Sound pressure level meter A sound pressure level meter adapted for use in monitoring noise levels, particularly for use by law enforcement agencies wherein the device includes means for providing a logarithmic indication of the root mean square value of ambient sound pressure leve... | 03/24/1981 |
| 4238856 | Fiber-optic acoustic sensor An optical fiber acoustical sensor for detecting sound waves in a fluid mum. An optical fiber coil through which a light beam is transmitted is placed in a fluid medium. A sound wave propagating through the fluid medium and incident on the optical fiber ... | 12/09/1980 |
| 4149423 | High-temperature microphone system Apparatus for measuring pressure fluctuations in air or other gases in an area of elevated temperature. A condenser microphone is located in the area of elevated temperature and electronics for processing changes in the microphone capacitance is located o... | 04/17/1979 |
| 4133212 | Parabolic focussing thermal detector for low level ultrasonic power measurements A system and technique for determining the total radiated ultrasonic power output from a diagnostic ultrasound device having an output transducer includes a water chamber having a parabolic reflector. The transducer is mounted on the chamber at a location... | 01/09/1979 |
| 4130023 | Method and apparatus for testing and evaluating loudspeaker performance A method and apparatus for determining the directivity index (DI) and directivity factor (Q) of a loudspeaker is described. A microphone is placed in the throat of a horn-type loudspeaker to measure the acoustical pressure at this point. A second micropho... | 12/19/1978 |
| 4102208 | Sound level meter In a sound level meter the output voltage of the microphone is fed to a voltage-frequency converter by way of an exponentially operating circuit, such as a squarer, and the output of the converter operates a binary counter having an indicator unit associa... | 07/25/1978 |
| 4100810 | Light coupled read-out system for noise dosimeter A read-out system for a portable noise dosimeter uses light coupled signals to obtain a noise level read-out display. The light signals are coded to effectively prevent extraneous light signals from causing read-out.... | 07/18/1978 |
| 4061042 | Audio signal monitoring system with display of two signal characteristics An audio signal monitoring system is disclosed, which provides simultaneous visual indication of instantaneous peaks of a monitored audio signal and of peaks which are sustained for a predetermined period of time. A high impedance buffer combined with a p... | 12/06/1977 |
| 4036065 | Grain loss monitor A percentage of the grain lost is sampled constantly by sensors at locations across the rear of the sieve of a combine and the sound of the grain kernels striking the sensors is picked up by a microphone, amplified, filtered and fed to a ratio computing d... | 07/19/1977 |
| 4033180 | Ultrasonic microphone for operating with an accumulated layer of mud over its vibratile surface without change in sensitivity within its prescribed frequency range A microphone is described for operating in dirty environments where a layer of dirt or mud may accumulate over the vibratile surface of microphone. The microphone is designed with its vibratile diaphragm having a mass greater than 0.4 gm/sq cm of diaphrag... | 07/05/1977 |
| 4028947 | Film-recording noise dosimeter A noise dosimeter permanently records ambient noise levels over a period of ime on photographic film to provide an indication proportional to the overall sound exposure level. Impinging acoustic energy is converted to representative potentials which are tr... | 06/14/1977 |
