Entries |
Document | Title | Date |
20080232197 | Ultrasonic sensor and obstacle detection device - An ultrasonic sensor includes: a first vibrator for transmitting an ultrasonic wave; multiple second vibrators for outputting a reception signal of a reflection wave; a casing having a bottom for accommodating the vibrators, an outer surface of the bottom providing a vibrating surface; and multiple tubes for guiding the ultrasonic wave. Each tube has a first opening coupled with an outside of a mobile body. An area of the first opening is smaller than an area of the vibrating surface. A distance between two adjacent first openings is smaller than a distance between two adjacent vibrating surfaces. The length of the tubes is determined to equalize a phase difference of the reflection waves at the first openings is equal to that at the vibrating surfaces. | 09-25-2008 |
20080232198 | Object Detection Apparatus and Method - A reflection-point estimation section constituting an object detection apparatus first calculates a rotational correction angle for each estimated reflection point P | 09-25-2008 |
20080279044 | Ultrasonic Ranging in the Near Zone - An ultrasonic ranging device for ultrasonic ranging in the near zone. The device may include a transducer for generating an ultrasonic signal and for detecting an echo signal. The device may also include a processor for calculating the distance to a target object based on a first time period defined by a first set of ultrasonic signals when the target object is located outside the near zone and a second time period defined by a second set of ultrasonic signals when the target object is located within the near zone. The processor may also adjust the amplitude of the generated ultrasonic signal until the first set of ultrasonic signals is detected at the transducer. | 11-13-2008 |
20080279045 | APPARATUS, SYSTEMS AND METHODS FOR DETERMINING POSITION OF MARINE SEISMIC ACOUSTIC RECEIVERS - Apparatus, systems and methods for calculating position of marine seismic acoustic receivers, and for estimating sound velocity profile of a fluid, are disclosed. One position calculation system includes a vessel, two or more vessel hull-mounted transmitters, a plurality of acoustic receivers on a cable being deployed from the vessel into the fluid, and a calculation unit. The calculation unit may be adapted to calculate position of the receivers, and may be used in calculating the sound velocity profile in the fluid and correcting raw seismic data. It is emphasized that this abstract is provided to comply with the rules requiring an abstract, which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims. 37 CFR 1.72(b). | 11-13-2008 |
20080291784 | Acoustic Wave Sensor - In an acoustic wave sensor for detecting a distance to an object and an orientation where the object is located with using acoustic waves, an acoustic wave generating device generating an acoustic wave by applying thermal impact to the air with no mechanical vibration is used as a wave transmitting device, and an electric capacitance microphone converting variation of pressure due to acoustic wave to variation of an electric signal is used as each wave receiving device. Therefore, dead zone caused by reverberation component included in the acoustic wave transmitted from the wave transmitting device and dead zone caused by reverberation component included in wave receiving signals outputted from the wave receiving devices can be shortened and angular sensitivity of the acoustic wave sensor can be increased, in comparison with a conventional acoustic wave sensor using piezoelectric devices as the wave transmitting device and the wave receiving devices. | 11-27-2008 |
20090016162 | Moving object detection apparatus - A moving object detection apparatus comprises a transmitter, a receiver, a detection portion, a binary conversion portion and a judgment portion. The transmitter emits energy waves with a first frequency to a detection area. When receiving incoming energy waves from the detection area, the receiver generates an electric signal corresponding to the incoming energy waves. The detection portion obtains a detection signal from a reference signal with the first frequency and the electric signal. The binary conversion portion compares the detection signal with a conversion threshold signal to obtain a binary signal. The judgment portion judges whether or not a moving object approaching or leaving the receiver exists in the detection area based on the binary signal. | 01-15-2009 |
20090028002 | Ultrasonic sensor - An ultrasonic sensor includes a sending device and a receiving device. The sending device has a sending surface for sending an ultrasonic wave into a sending area. The receiving device has a receiving surface for receiving the ultrasonic wave reflected by an external object from a receiving area. The sending area has an overlapping area with the receiving area. The overlapping area is offset to one of the sending area and the receiving area. | 01-29-2009 |
20090213695 | Volumetric Passive Sonobuoy Array of Polyvinylidene Fluoride (PVDF) Wires - A sonar system for detecting underwater acoustic signals includes a plurality of hydrophone units capable of converting acoustic impulses to electrical signals, the hydrophone units being substantially vertically oriented when deployed in a body of water, and the hydrophone units occupying at least some of the positions of an M×N horizontal array. Two-dimensional Chebyshev mathematical weighting is applied to the electrical signals from the individual hydrophone units such that each individual signal from each hydrophone unit is assigned a respective weighting number and a numerical value is assigned to each individual signal corresponding to the strength of the electrical signal as adjusted by the respective weighting number. | 08-27-2009 |
20090257310 | Method of processing echo profile, and pulse-echo system for use with the method - An echo profile in a pulse-echo ranging system is processed by determining the relative slope at points on the profile, determining the relative area of each region of positive slope on the profile, identifying within the region having the largest relative area a point of greatest relative slope as a leading edge reference point, and using either said leading edge reference point or a peak within the echo profile as an echo timing measurement point. | 10-15-2009 |
20090257311 | Method of processing echo pulses, and pulse-echo ranging system using the method - Error correction in an echo pulse is performed by periodically (for example, every 100th pulse) generating a parabola derived from a selected part of the pulse leading edge. An error value is generated from the distance from a leading edge reference point to the peak of the generated parabola or to the echo peak, whichever is less. In this way an error correction is dynamically re-learned. | 10-15-2009 |
20090290452 | Method of operating an acoustic pulse echo ranging system - A method of operating an acoustic pulse echo ranging system is provided. A series of acoustic energy pulses of successively increasing or decreasing burst frequencies are transmitted through a transducer assembly. For each transmitted energy pulse associated echoes are received and converted into an echo function over time. The obtained echo function is stored in a two-dimensional pattern whose first dimension is the burst frequency and whose second dimension is the time. Based upon the two-dimensional pattern a frequency response function is evaluated as a function of echo function values over burst frequency at a selected point of time. | 11-26-2009 |
20090296526 | ACOUSTIC TREATMENT APPARATUS AND METHOD THEREOF - An acoustic treatment apparatus obtains a first output signal by performing filtering for forming a directivity in a first direction for received sound signals of sound receivers, obtains a second output signal by performing filtering for forming a directivity in a second direction different from the first direction for received sound signals of sound receivers, obtains a strength ratio between a strength of the first output signal and a strength of the second output signal, and estimates a sound source direction on the basis of the strength ratio. | 12-03-2009 |
20100039899 | SYSTEM AND METHOD OF RANGE ESTIMATION - A system and method of range estimation are disclosed. In one embodiment, the method comprises transmitting beams through a medium towards a surface, receiving reflected signals from the surface, and estimating range to the surfaced based on the reflected signals and an estimate of sidelobe coupling of the beams. | 02-18-2010 |
20100097892 | Ultrasonic Level Detection Device With Flared Section for Reduced Distortion - The invention provides a level detection device ( | 04-22-2010 |
20100097893 | Method and Apparatus for Locating the Surface of Solid Growth Culture Media in a Plate - A method for locating the surface of a solid growth culture medium in a plate in a plate work position, the plate work position including a sensor and having a datum level fixed in one dimension (z), the method including: ˜placing the plate in the plate work position; ˜using the sensor to sense the medium surface for the positioned plate and measuring the distance to the medium surface; and ˜referencing the measured distance to the datum level to determine a surface positional reference, relative to the datum level, in one dimension (z) for the surface of the medium in the positioned plate. | 04-22-2010 |
20100128568 | Method and apparatus of location tracking - Disclosed are an apparatus and a method of location tracking. The location tracking apparatus may calculate a location of an object using an ultrasound. In this instance, an intensity of the used ultrasound may be determined based on a distance to the object, thereby reducing unnecessary power consumption. | 05-27-2010 |
20100128569 | DISTANCE MEASUREMENT APPARATUS AND RELATED METHODS - A distance measurement apparatus arranged to measure the distance to an object ( | 05-27-2010 |
20100214873 | SYSTEM AND METHOD FOR AUTOMATIC DETERMINATION OF THE PHYSICAL LOCATION OF DATA CENTER EQUIPMENT - The invention is directed to a system and method for automatic discovery of the physical location of at least one device in a data center, the device having an associated ultrasonic emitter. The system generally includes a plurality of ultrasonic detectors having known locations in the data center. A controller initiates the generation of an ultrasonic signal from an ultrasonic emitter associated with a device under test. Time of arrival circuitry generates time of arrival information associated with each ultrasonic detector based on the time of receipt of the ultrasonic signal. The controller determines the location of the device under test based on the known location of the ultrasonic detectors within the data center and the time of arrival information associated with each ultrasonic detector. | 08-26-2010 |
20100214874 | MULTIBEAM, MULTIFREQUENCY SONAR METHOD AND APPARATUS - The present invention relates to a sonar method and apparatus of tracking objects underwater. Specifically, the method and apparatus can be used to acoustically track a multitude of objects in a hemi-spherical volume 360° azimuth and 180° elevation relative to the location of the apparatus. The method and apparatus of the present invention provide four-dimensional, real-time tracking of underwater objects. | 08-26-2010 |
20100220551 | Physical object detection system - In an obstacle detection system, a wave transmitted by a transmitting element and received by receiving elements as a receiving wave includes extraneous waves, which are reflection waves from other than an obstacle, and obstacle reflection waves from an obstacle. It is determined that, an obstacle is present, if the reflection waves are detected as having an amplitude (voltage) greater than a threshold level and a reception time difference between time points at which the amplitude exceeds threshold level at the receiving elements is less than a predetermined time. | 09-02-2010 |
20100309751 | SONAR SYSTEM AND PROCESS - A sonar system and method of use capable of discriminating a direct acoustic signal present at 60 dB or more above the acoustic echo signal. | 12-09-2010 |
20100309752 | Method and device of measuring location, and moving object - Disclosed is a moving object and a location measuring device and method thereof that may transmit an ultrasound signal to the moving object through a plurality of ultrasound transmitting units, and may estimate a location of the moving object at a current time based on distance information of distances between the moving object and the plurality of ultrasound transmitting units measured based on the transmitted ultrasound, inertia information, and location information of the moving object at a time prior to the current time. | 12-09-2010 |
20100315904 | DIRECTION-FINDING METHOD AND INSTALLATION FOR DETECTION AND TRACKING OF SUCCESSIVE BEARING ANGLES - A direction-finding method and apparatus for detection and tracking of successive bearing angles of sound-emitting targets, wherein intensity plots of successive clock cycles in a waterfall plot show bearing traces of successive bearing angles, and preferred bearing traces are marked by a tracker. In order to automate the setting and deletion of trackers, starting from trace state vectors, which are determined at the time t=k−1, are each associated with one bearing trace and each have a bearing angle as well as its time derivative, which is referred to as the bearing rate, and possibly an intensity and its time derivative, which is referred to as the intensity rate, and trace errors associated with the trace state vectors for the time t=k, predicted state vectors are predicted together with predicted estimation errors. Bearing traces are displayed as a function of a trace quality | 12-16-2010 |
20100329080 | SENSOR FUNCTION FOR CONTROLLING AT A VARIABLE TRANSMISSION FREQUENCY FOR THE PURPOSE OF DETECTING CONTAMINATION - In a method for functional testing of a mechanical vibration sensor, a vibration signal is generated on the vibration component of the vibration sensor with the aid of a periodic excitation signal, the frequency of which excitation signal is varied, and a post-vibration process of the vibration component of the vibration sensor is analyzed once the excitation signal has been switched off. | 12-30-2010 |
20110051555 | System and Method for Determining Location of Submerged Submersible Vehicle - An aspect of the present invention is drawn to method of determining a location of a submersible vehicle. The method includes obtaining first bearing information based on a location of a ship at a first time relative to the submersible vehicle and receiving broadcast information from the ship, wherein the broadcast information includes location information related to a second location of the ship at a second time, a velocity of the ship at the second time and a course of the ship at the second time. The method further includes obtaining second bearing information based on the second location of the ship at the second time relative to the submersible vehicle, obtaining a velocity of the submersible vehicle at the second time and obtaining a course of the submersible vehicle at the second time. The method still further includes determining the location of the submersible vehicle based on the first bearing information, the second location of the ship at the second time, the velocity of the ship at the second time, the course of the ship at the second time, the second bearing information, the velocity of the submersible vehicle at the second time and the course of the submersible vehicle at the second time. | 03-03-2011 |
20110069584 | METHOD OF LOCATING A RECEIVER IN A WELL - A microseismic method of determining the position of a downhole receiver ( | 03-24-2011 |
20110096630 | METHOD FOR ESTIMATING TARGET RANGE ERROR AND SONAR SYSTEM THEREOF - Disclosed is an active sonar system capable of estimating a direction and a range of a target by using a sound pulse. A target range error can be estimated by the active sonar system, by applying a principle that a sound pulse used to detect an underwater target with consideration of a vertical structure of a sound velocity in water is reflected and refracted through a multipath not a linear path. | 04-28-2011 |
20110128819 | ACTIVE SONAR SYSTEM AND ACTIVE SONAR METHOD USING FUZZY LOGIC - A computer-implemented method of sonar processing includes identifying, with a processor, a detection having a detection probability value, the detection in a selected beam, wherein the detection is associated with a detection range cell having detection range cell data. The method also includes comparing, with the processor, the detection range cell data with range cell data from a corresponding range cell from at least one overlapping beam overlapping the selected beam. The method also includes updating, with the processor, the detection probability value based upon the comparing. A sonar system uses the above-described method. A computer readable storage medium has instructions thereon to achieve the above-described method. | 06-02-2011 |
20110134723 | Acoustic Fluid Height Monitoring Using Dynamic Surface Perturbations - A method of determining the volume or height of fluid in a reservoir is provided. A first burst of focused acoustic energy is used to raise temporarily a protuberance on a free surface of the fluid. A second burst of acoustic energy is directed to the free surface of the fluid. Echoes from the second burst of acoustic energy are detected. The detected echoes are employed to compute the height of the fluid. | 06-09-2011 |
20110134724 | SYSTEM AND METHOD FOR CONCURRENT BATHYMETRIC FIX - A system and method operate a Navigation Sonar System in an Alert Velocity Submode, receive sonar data during the operation of the Navigational Sonar System in the Alert Velocity Submode, and use the sonar data to compute depth data used to calculate a Bathymetric Fix. | 06-09-2011 |
20110176389 | DEVICE FOR MEASURING DISTANCE AND METHOD FOR OPERATING SAID TYPE OF DEVICE - A hand-held device ( | 07-21-2011 |
20110182147 | SYSTEM AND METHOD OF RANGE ESTIMATION - A system and method of range estimation are disclosed. In one embodiment, the method comprises transmitting beams through a medium towards a surface, receiving reflected signals from the surface, and estimating range to the surfaced based on the reflected signals and an estimate of sidelobe coupling of the beams. | 07-28-2011 |
20110228640 | Torsional Ultrasonic Wave Based Level Measurement System - A level measurement system suitable for use in a high temperature and pressure environment to measure the level of coolant fluid within the environment, the system including a volume of coolant fluid located in a coolant region of the high temperature and pressure environment and having a level therein; an ultrasonic waveguide blade that is positioned within the desired coolant region of the high temperature and pressure environment; a magnetostrictive electrical assembly located within the high temperature and pressure environment and configured to operate in the environment and cooperate with the waveguide blade to launch and receive ultrasonic waves; and an external signal processing system located outside of the high temperature and pressure environment and configured for communicating with the electrical assembly located within the high temperature and pressure environment. | 09-22-2011 |
20110228641 | Device for determining a filling level - A device for determining a filling level in a container, with a stillwell which has an entry opening and a vent opening, an ultrasonic transducer arranged in the base region of the stillwell and at least one pre-chamber. The pre-chamber has an inlet opening to the container and an outlet opening to the entry opening of the Stillwell. The pre-chamber of the device has a second outlet opening that opens out in a lead-off arrangement. By the lead-off arrangement, foamed medium flowing in quickly and suddenly into the pre-chamber of the device does not arrive into the measurement section of the ultrasonic transducer. | 09-22-2011 |
20110235465 | PRESSURE AND FREQUENCY MODULATED NON-LETHAL ACOUSTIC WEAPON - An acoustic weapon comprises a sonic pulse generator configured to generate discrete sonic pulses at a repetition rate. A sensor is configured to measure a range-to-target. A controller is configured to control the sonic pulse generator to generate a single shot including a burst of multiple pulses at a fixed repetition rate, to adjust the fixed repetition rate to shift the frequency content of the burst in accordance with a target coupling efficiency towards improving energy transfer to the target and to adjust the peak pressure of the burst in accordance with the range-to-target towards applying a specified peak pressure to the target. The controller may incorporate the target coupling efficiency as well as other parameters such as target apparent area and beam width when adjusting the weapon peak pressure. A pulse detonation engine (PDE) or pulse manifold (PM) may be modified and controlled to provide the large discrete peak pressures required at a periodic repetition rate. | 09-29-2011 |
20110255372 | COMPENSATION FOR DEPTH FINDERS - System and methods are disclosed for compensating a depth signal for a depth finder of a boat. In one embodiment, a compensation system is implemented between the depth finder and a transducer mounted on the boat. The compensation system receives a depth signal (i.e., a plurality of electrical impulses) from the transducer that directs sound waves toward the bottom of a body of water. The compensation system also monitors a change in elevation of the transducer, such as due to waves rocking the boat. The compensation system then compensates the depth signal based on the change in elevation, and provides the compensated depth signal to the depth finder. | 10-20-2011 |
20110255373 | Non Destructive Testing Device and Method for Detecting Possible Anomalies of a Wall Thickness - The invention relates to a nondestructive testing device for detecting possible thickness anomalies (Ve) of a wall (P), this device comprising a sensor ( | 10-20-2011 |
20110255374 | Method for Finding Range and Bearing to Underwater Object - A method for localizing the range and bearing of a distant underwater object includes firing a preselected number of supercavitating projectiles sequentially from a firing location such that each projectile tracks along substantially the same trajectory. Supercavitating pellets are dispersed from a projectile at a pre-selected range. Acoustic signals are sensed to detect acoustic signals caused by supercavitating pellet impact with an object. These signals can be processed to determine the range and bearing to the object. In further steps the range and bearing can be used to aim the projectiles. | 10-20-2011 |
20110267924 | ACOUSTIC DISTANCE MEASUREMENT SYSTEM HAVING CROSS TALK IMMUNITY - In one embodiment, an acoustic distance measurement system can use a modulation pattern to modulate a carrier wave. The modulated carrier wave may be transmitted to an acoustic transducer. An echo of the transmitted signal can be detected by correlating the received signal with the modulation pattern. Subsequent to detecting sufficient correlation between the received signal and modulation pattern, a distance determination can be made to determine the distance to the object that produced the received echo. | 11-03-2011 |
20110310703 | METHOD AND APPARATUS FOR PASSIVE DETERMINATION OF TARGET DATA - A method and apparatus for passive determination of target data (R, K, V) associated with a target from measured and estimated bearing angles. The measured bearing angles ( | 12-22-2011 |
20120002506 | DISPLACEMENT ESTIMATING METHOD, DISPLACEMENT ESTIMATING DEVICE - Disclosed is a displacement estimating method of iteratively estimating displacement using ultrasound signals, and the method includes: transmitting, to a medium, at least one of the ultrasound signals to scan the medium; receiving the ultrasound signal reflected from the scanned medium; calculating a size of a window; calculating a border of the window based on the calculated window size; estimating displacement for each depth of the ultrasound signal, using the window with the calculated border; warping the ultrasound signal based on the estimated displacement; and guiding convergence of the method using the warped ultrasound signal so that a correlation value of the ultrasound signal is larger. | 01-05-2012 |
20120020188 | Ultrasound sensor having blockage detection - An ultrasound sensor for distance detection includes a transducer external surface and a blockage sensor provided on the transducer external surface. The surface of the blockage sensor terminates flush with the transducer external surface and is sensitive to an electrical characteristic or is sensitive to a temperature present at the blockage sensor surface. In this way, the blockage sensor can determine whether the ultrasound transducer is blocked by a layer of ice or whether the sensor is free of blockage. | 01-26-2012 |
20120026836 | Proximity timer switch - A timer switch which is activated by the proximity of an object situated in a given distance range and is present there for a given time period. | 02-02-2012 |
20120033530 | SOUND IMAGE LOCALIZATION APPARATUS - According to one embodiment, a sound image localization apparatus includes following units. The first signal generating unit is configured to generate a first acoustic signal. The first speaker is configured to generate a first sound according to the first acoustic signal. The input unit is configured to input a localization magnification n. The first control filter unit is configured to adjust the first acoustic signal with a first control filter G | 02-09-2012 |
20120069713 | Imaging of Formation Structure Ahead of the Drill-Bit - The present disclosure is related to apparatuses and methods for downhole acoustic logging. The tool may be used for generating a guided borehole wave that propagates into the formation as a body wave, reflects from an interface, and is converted back into a a guided borehole wave. Guided borehole waves resulting from reflection of the body wave are used to image a reflector. Methods may include processing of acoustic logging signals including: wavefield separation, auto-correlation of wavefield components, filtering using a dip filter, and estimating a distance to the reflective interface. | 03-22-2012 |
20120082004 | Method and System for Sensing Objects in a Scene Using Transducers Arrays and in Coherent Wideband Ultrasound Pulses - Pulses are transmitted into a scene by an array of the transducers, wherein each pulse has wideband ultrasound frequency, wherein the pulses are transmitted simultaneously, and wherein a pattern of the wideband ultrasound frequencies in each pulse is unique with respect to the patterns of each other pulse. The pulses as received when the pulse are reflected by the scene and objects in the scene. Each received pulse is sampled and decomposed using a Fourier transform to produce frequency coefficients, which are stacked to produce a linear system modeling a reflectivity of the scene and the objects. Then, a recovery method is applied to the linear system to recover the reflectivity of the scene and the objects. | 04-05-2012 |
20120082005 | MINER ACOUSTIC COMMUNICATION AND LOCATION SYSTEM - A miner communication and locating system is disclosed. Two technologies used in the system include a communicator, and a locator array that may be used with a computer. The communicator portion allows trapped miners to continually signal without physical effort that they have survived a cave-in or explosion in a direct, mechanical, and reliable manner. The locator array receives the communicator signal for use to accurately identify where the survivors are underground, and facilitate their rescue; a computer can be used to calculate the position of the communicator from information provided by a plurality of locators: global positioning system receivers may be used with the locator array. | 04-05-2012 |
20120099400 | ESTIMATING POSITION AND ORIENTATION OF AN UNDERWATER VEHICLE RELATIVE TO UNDERWATER STRUCTURES - A method and system that can be used for scanning underwater structures. For example, the method and system estimate a position and orientation of an underwater vehicle relative to an underwater structure, such as by directing an acoustic sonar wave toward an underwater structure, and processing the acoustic sonar wave reflected by the underwater structure to produce a three dimensional image of the structure. The data points of this three dimensional image are compared to a pre-existing three dimensional model of the underwater structure. Based on the comparison, a position and orientation of an underwater vehicle relative to the underwater structure can be determined. | 04-26-2012 |
20120163125 | METHOD OF ULTRASOUND TELEMETRY FOR DRONES, WITH DISCRIMINATION OF SPURIOUS ECHOES EMANATING FROM ANOTHER DRONE - The method comprises: a) the emission of an ultrasound burst repeated at a predetermined recurrence frequency; and b) after each emission and for the duration of a time frame (n−1, n, n+1, . . . ) separating two consecutive emissions, the reception of a plurality of successive signal spikes appearing in the course of the same frame. These spikes include spurious spikes (E′ | 06-28-2012 |
20120170411 | OBSTACLE DETECTION DEVICE - An obstacle detection device includes one or more emitter ultrasonic sensors, each emitting an ultrasonic wave toward an obstacle, and one or more detection ultrasonic sensors for reception, each detecting a reflected wave from the obstacle. A control unit drives a specific one of the emitter ultrasonic sensors to cause it to emit an ultrasonic wave, stops the emission of the ultrasonic wave by the specific emitter ultrasonic sensor at the time that one of the detection ultrasonic sensors detects a reflected wave from the obstacle, and carries out detection of the obstacle and measurement of the distance to the obstacle from the time that the control unit stops the emission of the ultrasonic wave by the emitter ultrasonic sensor and the time that the reflected wave cannot be detected anymore. | 07-05-2012 |
20120188847 | POSITION DETECTION APPARATUS, POSITION DETECTION METHOD, MOBILE, AND RECEIVER - To detect the positions of the respective mobiles correctly without being affected by the ultrasonic waves from other mobile(s) in a case where plural mobiles are used simultaneously. | 07-26-2012 |
20120201100 | Method for Echo Processing in a Pulse-Echo Ranging System - In a pulse-echo ranging system an energy pulse is transmitted to a target, echo pulses are received and converted into an echo signal that is processed to identify an echo from the target and to determine the distance from the propagation time of the identified echo, where the advanced stage of the processing is performed digitally. Instead of storing and processing the echo signal, the first derivative of the whole echo signal is stored in digital form and then processed to allow for storing as large a number of samples possible in a limited memory without reducing the resolution and without complicating the processing. | 08-09-2012 |
20120218868 | APPARATUS AND METHOD OF DETECTING DEFECTS IN A RAIL JOINT BAR - An inspection apparatus for detecting defects in a rail joint bar includes an ultrasonic transducer mounted on an actuator for moving the transducer into and out of engagement with a vertical surface of the head of the joint bar. A laser profile system and an encoder output linear position data corresponding to the position of a joint bar relative to the position of the inspection apparatus. A system controller responsive to the identification of the presence of a joint bar or obstructions, outputs control information to the transducer actuator assembly to position the transducer assembly relative to the joint bar. | 08-30-2012 |
20120307594 | OBSTACLE DETECTION DEVICE - An obstacle detection device controls distance sensors to cause the distance sensors to transmit a transmission wave during a fixed time period, measures a first time which has elapsed from a time at which the transmission starts to a time at which a reflected wave is detected, and a second time which has elapsed a time at which the above-mentioned transmission is stopped to a time at which the reflected wave disappears, and determines that an obstacle exists when a time difference between the above-mentioned first time and the above-mentioned second time is equal to or shorter than a predetermined allowed time. Therefore, the obstacle detection device can reduce the time required for the determination to at least one-half that provided by a related art technique, and improves the accuracy of the detection of an object moving at a relatively high speed. | 12-06-2012 |
20120327744 | System for Illuminating an Object with a Wave or for Imaging an Object with a Wave - A system for illuminating an object with a wave or for imaging an object with a wave comprises a lens, a plurality of transducers and a control unit connected to the plurality of transducers. The lens comprises a plurality of resonator elements incorporated inside a medium and is able to convert a near field wave of the lens to a far field wave, or reciprocally. The resonator elements are at a sub wavelength distance from each others. The control unit provides signals to the transducers so that a plurality of points on the object are illuminated as desired, or obtains signals from the transducers to build an image of a plurality of points of the object. The points are at sub wavelength distance from each others. | 12-27-2012 |
20130033963 | POSITIONING APPARATUS FOR EXCAVATING AND SIMILAR EQUIPMENT - In the use of a backhoe digger an indication of the precise depth of the bucket is required. This may be done by measuring the angles and extensions of the elements of the backhoe and calculating the result. This is commonly done by means of angle resolvers and linear encoders. Retro-fitting and calibration of such equipment is very difficult, and according to the invention the same data may be obtained by means of an inclinometer and length measuring devices based on pulsed ultrasound. | 02-07-2013 |
20130039152 | HAND-VISION SENSING DEVICE AND HAND-VISION SENSING GLOVE - A hand-vision sensing device and a hand-vision sensing glove are provided. The hand-vision sensing device includes a prompting device, a controller, an ultrasonic sensor and a chromaticity sensor, in which the controller is connected to the ultrasonic sensor, the prompting device and the chromaticity sensor respectively, and two groups of ultrasonic sensors exist. The hand-vision sensing glove includes a glove main body and the hand-vision sensing device disposed on the glove main body. Through the hand-vision sensing glove, a position of an object is detected in a short distance, so that the blind person can be fast aware of a peripheral space formed by the object when using the hand-vision sensing glove, thereby assisting the blind person in manual operation and life. | 02-14-2013 |
20130058195 | DEVICE SYSTEM AND METHOD FOR GENERATING ADDITIVE RADIATION FORCES WITH SOUND WAVES - The present relates to a device, a system and a method for generating radiation forces in a region of interest. For doing so, a plurality of additive shear waves are generated in the region of interest. | 03-07-2013 |
20130058196 | ROBUST ULTRASONIC INDOOR POSITIONING SYSTEM WITH HIGH ACCURACY - The present invention relates ultrasound positioning systems ( | 03-07-2013 |
20130064041 | OSCILLATOR AND ELECTRONIC DEVICE - In an oscillator ( | 03-14-2013 |
20130064042 | DISTANCE ESTIMATION USING SOUND SIGNALS - An apparatus comprises a test signal generator ( | 03-14-2013 |
20130077442 | ULTRASONIC MOTION DETECTION - Movements of objects within a space are adaptively detected by emitting ultrasound waves into the space and detecting reflections of the ultrasound waves, determining locations of objects within the space based on the ultrasound reflections, and determining real-time movements of the objects based on, in certain embodiments, (i) amplitude differences between amplitudes of echoes in a current wave cycle and an average amplitude over a plurality of wave cycles and (ii) elapsed times of the ultrasound reflections associated with the amplitude differences. | 03-28-2013 |
20130077443 | OSCILLATION DEVICE AND ELECTRONIC APPARATUS - An oscillation device includes: a piezoelectric vibrator ( | 03-28-2013 |
20130083630 | OSCILLATOR AND ELECTRONIC DEVICE - An elastic vibration plate ( | 04-04-2013 |
20130088941 | SONIC SENSORS AND PACKAGES - Embodiments relate to integrated sonic sensors having a transmitter, a receiver and driver electronics integrated in a single, functional package. In one embodiment, a piezoelectric signal transmitter, a silicon microphone receiver and a controller/amplifier chip are concomitantly integrated in a semiconductor housing. The semiconductor housing, in embodiments, is functional in that at least a portion of the housing can comprise the piezoelectric element of the transmitter, with an inlet aperture opposite the silicon microphone receiver. | 04-11-2013 |
20130100774 | SYSTEM FOR DETERMINING THE DISTANCE FROM AND THE DIRECTION TO AN OBJECT - A system for determining the distance from and the direction to an object includes an emitter and at least two receiver elements for receiving a signal which is transmitted by the emitter and reflected by the object. The receiver elements are arranged as a linear array, as two linear arrays situated at an angle to one another, as an array which surrounds the emitter and forms a circle, or as a two-dimensional array. The diameter of the array may be greater than one-half the wavelength of the signal, and the receiver elements each have an individual surface area whose height or diameter corresponds at most to one-half the wavelength of the signal, and the emitter has a height or a diameter which is greater than one-half the wavelength of the signal. | 04-25-2013 |
20130107667 | Method and System for Reconstructing Scenes Using Virtual Arrays of Transducers and Joint Sparsity Models | 05-02-2013 |
20130128698 | Object Outline Measuring System - A plurality of sensors are utilized for continuously detecting a plurality of relative distances between a surface of an object and the plurality of sensors within a predetermined space, and are utilized for generating a plurality of distance data according to the plurality of relative distances. A data processing module is utilized for establishing an object outline model of the object according to the plurality of distance data. Therefore, resolution or accuracy of the object outline model generated by measuring an outline of the object can be significantly increased. | 05-23-2013 |
20130128699 | METHOD AND DEVICE FOR DETERMINING THE POSITION OF AN OBJECT IN RELATION TO A VEHICLE, IN PARTICULAR A MOTOR VEHICLE, FOR USE IN A DRIVER ASSISTANCE SYSTEM OF THE VEHICLE - In a method and a device for determining the position of an object in relation to a vehicle, for use in a driver assistance system of the vehicle, a first ultrasound pulse is transmitted by an ultrasound sensor situated on the vehicle, the ultrasound pulse including multiple predefined transmission frequencies which result in a variation of the directional characteristic of the ultrasound sensor. The transmitted first ultrasound pulse is reflected on the object and is received again as a first echo pulse. A frequency spectrum of the first echo pulse is subsequently determined, and a first absolute value of a relative offset angle of the object is determined as a function of the frequency spectrum of the first echo pulse and the directional characteristics. | 05-23-2013 |
20130155815 | METHOD AND APPARATUS FOR VERIFYING INFORMATION ASSOCIATED WITH ELECTRONIC LABELS - Embodiments are directed to methods and apparatuses for determining and verifying a location of an electronic label. A host system exchange information with the electronic label via ultrasonic data communication. The host system also identifies a location of the electronic label using an ultrasonic location technique. The host system also verifies that the electronic label is correctly located by comparing a calculated location of the electronic label with a known location of merchandise associated with the electronic label. | 06-20-2013 |
20130182539 | MULTIPATH REFLECTION PROCESSING IN ULTRASONIC GESTURE RECOGNITION SYSTEMS - A method includes identifying a position of a static reflector near an ultrasonic transmitter. The method also includes transmitting ultrasonic signals from the ultrasonic transmitter. The method further includes receiving reflected ultrasonic signals at an ultrasonic receiver, where the received ultrasonic signals include a direct reflection directly from a target and a multipath reflection indirectly from the target via the reflector. In addition, the method includes identifying a location of the target using the reflections and the identified position of the reflector. The identified position of the reflector can be used to determine which pulses in the received ultrasonic signals are from the direct reflection and which pulses in the received ultrasonic signals are from the multipath reflection. The pulses in the received ultrasonic signals from the multipath reflection could be discarded or combined with the pulses in the received ultrasonic signals from the direct reflection. | 07-18-2013 |
20130182540 | POSITION SENSOR - A position sensor system for use in sensing the position of a component located within a housing and disposed, at least in part, within a fluid, the system comprising a first acoustic position sensor operable to transmit a first acoustic signal through the fluid and to sense a reflection of the first acoustic signal from a first surface to derive a first position signal, a second acoustic position sensor operable to transmit a second acoustic signal through the fluid and to sense a reflection of the second acoustic signal from a second surface to derive a second position signal, and means operable, using the first and second position signals, to derive a position signal indicative of the position of the component within the housing. | 07-18-2013 |
20130201796 | ELECTRONIC APPARATUS - An electronic apparatus includes a substrate and an oscillation device ( | 08-08-2013 |
20130223189 | Handheld Forestry Device - A rugged hand-held mobile computing device for a forester to collect and use dendrometric data from trees and tree stands is claimed. The device includes a processor which operates in connection with a memory, a user interface, a GPS receiver, a sound sensor capable of emitting an ultra-sonic pulse and a computer readable code embodied on the memory. The device communicates with a transponder by way of the ultra-sonic pulse emitted by the sound sensor. The transponder also emits an ultra-sonic pulse back to device. The device calculates the distance traveled based on the knowledge of the speed of the pulses. The memory, which also includes basic mapping software, uses the data to update a map in real time with the location of the trees and other information collected. | 08-29-2013 |
20130235700 | SEMICONDUCTOR DEVICE AND METHOD OF FORMING SAME FOR ACOUSTIC SENSING OF CLOSE PROXIMITY OBJECTS - In embodiments a circuit provides a circuit for use in detecting close proximity objects in an acoustic distance sensing system. The circuit produces a close proximity zone flag when the time after transmitting an acoustic distance sensing pulse corresponds to the defined close proximity range. The circuit can also include a time of flight counter for determining the time of flight of a received echo. The circuit can further produce a close proximity time if flight valid flag indicating that echoes are being received in close proximity time frame. | 09-12-2013 |
20130242702 | OSCILLATOR DEVICE AND ELECTRONIC APPARATUS - In an electro-acoustic transducer | 09-19-2013 |
20130265854 | VISUAL INDICATION OF TARGET TRACKING - Awareness of a device, such as a robot, to proximate humans (or other moving object) is manifested by a visual signal aligned with—i.e., aimed at—the human. For example, an illumination system may take the form of a closed or partial ring around which lighting elements may be selectively activated. | 10-10-2013 |
20130272094 | ULTRASONIC MEASURING GAUGE - An ultrasonic measuring gauge includes a probe configured to be moved along a surface of a material to be measured, transmit ultrasonic waves to the material, and receive ultrasonic waves reflected from the material. The gauge also includes a processing unit and an input unit. The processing unit is configured to operate according to one of two different modes of operation based on an input received by the input unit. In a first mode of operation, the probe determines the thickness at portions between the first and second locations on the surface of the material at which the probe is coupled to the material regardless of whether the probe is continuously physically coupled between the two locations. In a second mode of operation, the processing unit determines a corresponding thickness of the material at each portion between two locations when the probe is continuously physically coupled between the two locations. | 10-17-2013 |
20130329523 | DRIVER ASSISTANCE SYSTEM FOR DETECTING AN OBJECT IN THE SURROUNDINGS OF A VEHICLE - A method in a driver assistance system of a vehicle for detecting an object in the surroundings of the vehicle. The method has the following steps: emission of at least one measuring pulse by a transmitter; reception of a reflection of the measuring pulse by at least one receiver; determination of a Doppler shift between the emitted measuring pulse and the received reflection in an analysis unit; and determination of a direction toward the object based on the determined Doppler shift. | 12-12-2013 |
20130336093 | ECHOLOCATION APPARATUS - An apparatus comprises an echolocation module configured to determine a distance to the object based on the received sound signal reflected from an object. The echolocation module determines surroundings based on the determined distance. A processor is configured to modify one or more attributes of the apparatus based on the determined surroundings. | 12-19-2013 |
20140029385 | Method for operating a surroundings detection system of a vehicle having at least two transceiver units and surroundings detection system - A method for operating a surroundings detection system of a vehicle having at least two transceiver units, at least one transceiver unit emitting signals, and the at least two transceiver units receiving echo signals of the emitted signals, the echo signals being reflected by reflection sources situated in a detection range of the transceiver units. It is provided that received wave pulses and corresponding amplitude information are ascertained from the received echo signals, and upon receipt of the received wave pulses originating from at least two different reflection sources, an assignment of different received wave pulses of a first transceiver unit to different received wave pulses of a second transceiver unit is performed, taking into account the amplitude information, so that a spatial position of the at least two different reflection sources is ascertainable. Also described is a surroundings detection system and a computer program configured for performing the method. | 01-30-2014 |
20140036632 | MOUNTING STRUCTURE FOR SONAR SENSOR - A mounting structure for a sonar sensor includes the sonar sensor provided with a detection plane for detecting a distance to an object by sending an ultrasound from the detection plane and receiving a reflective wave reflected by the object, a resin member in which a hole is formed and on which the sonar sensor is mounted, and a holder that has a cover for covering the detection plane and holds the sonar sensor. The sonar sensor is installed in the holder. The holder is attached to the resin member so that the cover is inserted into the hole from an inside of the resin member and an outer surface of the cover is made flush-surfaced with an outer surface of the resin member. At least the cover is made of resin in the holder. According to the mounting structure, painting cost can be reduced by commonalizing painting materials. | 02-06-2014 |
20140050052 | METHOD AND SYSTEM FOR DETECTING SPATIAL POSITION OF INDICATOR OBJECT BY USING SOUND WAVE - A method for detecting a spatial position of an indicator object by using sound waves. The method is adapted to be used with a sound wave transceiver device and a plurality of sound wave receiving devices. The method includes steps of: obtaining a relative position of the sound wave transceiver device to each one of the sound wave receiving devices; obtaining a plurality of reflection times respectively indicating time periods from the sound wave transceiver device emitting the sound wave to the sound wave transceiver device and the sound wave receiving devices receiving the reflected sound wave from the indicator object; and calculating a position of the indicator object according to the relative positions and the reflection times. A system for detecting a spatial position of an indicator object by using sound waves is also provided. | 02-20-2014 |
20140086015 | Object Detection Method Using Ultrasonic Waves and Object Detection Apparatus - An object detection method using ultrasonic waves includes: emitting a plurality of ultrasonic signals sequentially according to a time interval; sensing a sound wave formed by each of the ultrasonic signals to generate a reflected signal; and analyzing the reflected signal to detect at least one reflection object. It can be clearly known whether a reflection object is appearing, moving and the moving direction by the method. | 03-27-2014 |
20140140176 | LOCAL POSITIONING SYSTEM FOR REFRACTORY LINING MEASURING - A method and system for measuring wear in the lining of a vessel in which undirected radiation signals are transmitted by at least two transmitters at known positions to a receiver at the device for measuring wear. The distances between the transmitters and receiver are determined based on the time of flight of the radiation between the transmitters and receiver. The location of the receiver at the measuring device is determined to be at a point on an arc of points at the distance calculated based on the time of flight of the signal from each of the transmitters to the receiver. The receiver is determined to be at the intersection of the two arcs of points at the distance calculated based on the time of flight of the signal from the each of the transmitters. Also, the orientation of the measuring device relative to the known positions of the transmitters can be determined if a second receiver is present at or near the measuring device and receives signals from the transmitters based on the positions of the receivers relative to each other at the measuring device. | 05-22-2014 |
20140146641 | METHOD AND APPARATUS FOR AN ACOUSTIC-ELECTRIC CHANNEL MOUNTING - Method and apparatus for rotational alignment and attachment of ultrasonic transducers to a barrier with one submerged surface uses a temporary transducer assembly to position mounting rings on opposite surfaces of the barrier. Plural permanent transducers are then mounted to each mounting ring and are aligned with each other across the barrier by virtue of the alignment of their mounting rings. The submerged mounting ring is used like a cylinder in combination with a mounting plate for the transducers on the submerged side of the barrier or each submerged side transducer has a suction cup fitting for use to exclude water from between each transducer and the submerged barrier surface to facilitate bonding of the submerged side transducers to the barrier. | 05-29-2014 |
20140198618 | DETERMINING ROOM DIMENSIONS AND A RELATIVE LAYOUT USING AUDIO SIGNALS AND MOTION DETECTION - Methods and apparatus are provided for determining room dimensions and layout. A method includes receiving an audio signal from at least one other detection apparatus. The method includes determining a spatial orientation of a detection apparatus along a substantially planar surface. The method includes calculating at least one dimension along the planar surface based in part on the received audio signal and the determined spatial orientation of the detection apparatus. Methods and apparatus are provided for determining room layout. The method includes detecting a mobile object in a first room. The method includes receiving an indication of detection of the mobile object in a second room subsequent to the detection in the first room. The method includes providing an indication that the first and second rooms are adjacent rooms based on the detection of the mobile object in the second room subsequent to the detection in the first room. | 07-17-2014 |
20140198619 | ULTRASOUND MEASUREMENT ASSEMBLY FOR MULTIDIRECTIONAL MEASUREMENT - The present invention relates to an ultrasound measurement assembly ( | 07-17-2014 |
20140204713 | DEVICE AND METHOD FOR DETERMINATION OF A POSITION OF AN OBJECT BY MEANS OF ULTRASONIC WAVES - The invention refers to a device for determination of a position of an object by means ultrasonic waves, comprising at least one ultrasonic sensor for receiving ultrasonic signals from the object and computing means for computing the position of the object based on the received ultrasonic signals. At least one laser unit for generating a pulsed laser beam is provided, wherein said pulsed laser beam being directed to the object and adapted to cause at a surface of the object vibrations, by which the object is excited to generate ultrasonic signals. The invention also relates to a method for determination of a position of an object by means of ultrasonic waves, wherein by at least one ultrasonic sensor ultrasonic signals are received from the object, and based on the received ultrasonic signals, the position of the object is computed. A pulsed laser beam is generated by at least one laser unit, said laser beam is directed to the object and by means of the pulsed laser beam vibrations are caused at a surface of the object, wherein the object is excited to generate the ultrasonic signals. | 07-24-2014 |
20140269193 | SONIC-ASSISTED LOCALIZATION OF WIRELESS DEVICES - Wireless location identification systems, methods, and devices include a wireless device configured to transmit at least one sonic signal operating on at least one acoustic frequency and to receive at least one echo signal indicative of the at least one sonic signal being reflected by objects in a current location, an audio module configured to measure the received at least one echo signal and process the at least one echo signal to extract attributes of the echo signal and generate at least one echo profile characteristic; and logic configured to compare the at least one profile characteristic with previously-stored sonic characteristics that are correlated with pre-identified locations. The current location is then identified as a pre-identified location correlated to the previously-stored sonic characteristics that match the at least one profile characteristic. | 09-18-2014 |
20140328142 | VEHICLE OBSTACLE DETECTION DEVICE - A vehicle obstacle detection device includes a sensor that transmits and receives ultrasonic waves, and a controller that instructs the sensor to transmit the ultrasonic waves. The controller compares amplitude of reflected waves received by the sensor with a threshold to determine presence or absence of an obstacle. The controller includes a voltage monitoring unit that detects a power supply voltage. The controller more reduces the threshold as the power supply voltage detected by the voltage monitoring unit is lower. | 11-06-2014 |
20140340993 | POSITION MEASUREMENT DEVICE - A position measurement device that measures three-dimensional coordinates of an object using ultrasound. The position measurement device includes a transmitter that emits an ultrasonic wave; three receivers that receive an ultrasonic wave; a time determination unit that determines an arrival time candidate for each of the receivers wherein the arrival time candidate is a time period from emission to arrival of the ultrasonic wave after being reflected from an object, and determines a plurality of the arrival time candidates for at least one of the receivers; a coordinate calculation unit that calculates a plurality of candidates of three-dimensional coordinates indicative of positions of the object based on the arrival time candidates determined by the time determination unit and relative positions of the transmitter and the receivers; and a coordinate determination unit that determines the three-dimensional coordinates of the object based on the plurality of candidates of three-dimensional coordinates. | 11-20-2014 |
20140355385 | OBJECT DETECTING APPARATUS - An object detecting apparatus includes a first transmission and reception unit having a first transmitter and a first receiver, a second transmission and reception unit having a second transmitter and a second receiver, and a failure judging section. The first receiver produces a first output signal corresponding to a transmission wave, which is transmitted directly from the second transmitter to the first receiver. The second receiver produces a second output signal corresponding to a transmission wave, which is transmitted directly from the first transmitter to the second receiver. Using at least one of the first output signal and the second output signal, the failure judging section judges whether a failure of the first transmitter or the second receiver has occurred, or judges whether a failure of the first transmission and reception unit or the second transmission and reception unit has occurred. | 12-04-2014 |
20140376333 | SYSTEMS AND METHODS FOR REDUCING FALSE TARGETS IN ULTRASONIC RANGE SENSING APPLICATIONS - An ultrasonic range sensor comprises at least one transducer adapted to generate an ultrasonic pulse having a first axis of transmission and detect a reflected signal that is associated with the ultrasonic pulse and propagates along the first axis of transmission. The ultrasonic range sensor also comprises a deflecting region adapted to reflect the reflected signal along a second axis different from the first axis of transmission. In one embodiment, the second axis is deflected from the first axis by a non-zero angle determined by a characteristic of the deflecting region. | 12-25-2014 |
20150016225 | System and Method for Target Detection - A sonar based sensor for localization of a target in air is described. The sensor comprises a wide or ultra-wide band emitter for emitting a wide or ultra-wide band signal, and a set of spatially randomly or irregularly positioned receivers for receiving the wide or ultra-wide band signal after reflection at the target. A corresponding processor and method for localizing also is disclosed. | 01-15-2015 |
20150063068 | SENSING DEVICE AND POSITIONING METHOD - A sensing device and a positioning method are disclosed. The sensing device is mounted around a display module to detect an object. The display module includes a display screen for displaying an image. The sensing device includes a first sonic wave transceiver, a second sonic wave transceiver, and a control module. The first and second sonic wave transceivers are respectively configured for transmitting a first sonic wave and a second sonic wave, and receiving a first reflected sonic wave and a second reflected sonic wave generated based on the first and second sonic waves, respectively. A frequency of the first and second sonic waves is between 50 KHz and 70 KHz. The control module is configured for controlling the first and second sonic wave transceivers, and for calculating a position of the object relative to the display module based on the first and second reflected sonic waves. | 03-05-2015 |
20150078132 | Sonar Type Object Detection System and its Implementing Method - A sonar type object detection system and its implementing method are provided, whereby a physical object within a certain range can be detected after implementing by an operator. The present invention is mainly formed by a sonar application program unit, a voiceprint data base, and a mobile electronic device combined therewith. The present invention employs the principle of active sonar, in which a sonar module is used to transmit detective soundwaves and simultaneously to collect the reflective soundwaves of the detective soundwaves bouncing from physical object. Then, the reflective soundwaves are compared with the voiceprint data stored in the voiceprint data base, and the relative position of the object to be found is displayed directly on the screen of the mobile electronic device. | 03-19-2015 |
20150078133 | METHOD AND DEVICE FOR DETERMINING THE POSITION AND/OR THE MOVEMENT OF AN OBJECT - In a method for determining the position and/or the movement of at least one object in the surroundings of a vehicle with the aid of at least one transmitted acoustic signal, the time behavior of at least one electrical signal of an electroacoustic transducer during the transmission of the acoustic signal and/or during a decay of the electroacoustic transducer following the transmission and/or during the reception of the acoustic signal reflected on the object is analyzed at least during a suitable fraction of a signal period in such a way that changes of the electrical signal of the electroacoustic transducer is detected. | 03-19-2015 |
20150085613 | SYSTEM FOR POSITION MEASURING AND INTEGRITY MEASURING - A system for measuring the position of a rod element as, for example, a hydraulically or pneumatically operated piston rod. Unlike the prior art, the system according to the present invention employs a measuring principle that does not require preparatory treatment of the rod element as is required in the known solutions. The system employs direct time of flight measurements with the aid of acoustic surface waves that are introduced into the rod element. The instrument is retrofittable on existing cylinders without any modification/ reconstruction thereof An EMAT principle is employed to introduce the surface waves into the measurement in a non-contact manner. | 03-26-2015 |
20150085614 | SYSTEM AND METHOD FOR FISH FINDING USING A SONAR DEVICE AND A REMOTE COMPUTING DEVICE - The present invention generally relates to a fish finding sonar system. Specifically, this invention relates to a sonar device pairing with a remote computing device to provide information to an angler about what is under the surface of the water. Embodiments of the present invention include a sonar device and a remote computing device configured to allow the sonar device to wirelessly communicate with the remote computing device and the remote computing device to connect to a database to register and receive information about real-time fishing hotspots. | 03-26-2015 |
20150103630 | INCREASING SIGNAL TO NOISE RATIO OF ACOUSTIC ECHOES BY A GROUP OF SPACED APART ACOUSTIC TRANSCIVER ARRAYS - A method and a system for evaluating a content of a bin, the method may include: transmitting by multiple acoustic transceiver arrays, a plurality of acoustics pulses in an at least partially overlapping manner towards an expected location of the content to generate an acoustic interference pattern that comprises multiple fringes; detecting by an acoustic transceiver array a first fringe of the acoustic interference pattern and providing a fringe detection signal; and processing the first fringe detection signal to assist in a provision of a first estimate related to the content. A distance between a pair of acoustic transceiver arrays is at least ten times a distance between transducers of a same acoustic transceiver array. | 04-16-2015 |
20150103631 | TRAWL HEIGHT INDICATOR - A trawl sensor device for monitoring trawl doors and the distance of the trawl to the boom during trawling operations comprises at least one acoustic transmitter and receiver, the transmitter being adapted to be positioned such that an acoustic signal is transmitted towards the seabed at a forward-pointing angle, and means for communication between the sensor device and a vessel. The transmitted acoustic signal is reflected from the seabed and is received at this position and the distance between the acoustic transmitter and the seabed is calculated based on the difference in time between transmission and reception of the acoustic signal and the forward-pointing angle. | 04-16-2015 |
20150124564 | Ultrasonic Sensor And Device And Method For Measuring A Distance Between A Vehicle And An Obstacle - An ultrasonic sensor includes a housing having a peripheral side wall and a base surface, i.e., it is configured as essentially pot-shaped. The base surface is configured as a diaphragm. A transducer element, which is configured as a piezoelectric element, for example, and is used for generating and detecting ultrasonic oscillations, is situated on the base surface. At least one mass element is situated on the base surface so that the resistance of the mass element against an oscillation of the diaphragm increases with rising oscillation frequency. | 05-07-2015 |
20150301166 | SENSOR DEVICE FOR A COMPUTER SYSTEM, COMPUTER SYSTEM WITH A SENSOR DEVICE AND OPERATING METHOD FOR A SENSOR DEVICE - A sensor device for a computer system has a transceiver unit and a data processing device connected to the transceiver unit, wherein the data processing device is configured to predefine emission of signals at measuring intervals for the transceiver unit; detect, on the basis of received, reflected signals, signal ranges assignable to objects; define a deviation in intensities of the received signal ranges over a plurality of measuring intervals for associated, detected signal ranges; and decide, on the basis of the defined deviation, whether a change has taken place in the object assigned to the respectively detected signal range. | 10-22-2015 |
20160097855 | ACOUSTIC APPARATUS WITH ULTRASONIC DETECTOR - In accordance with one aspect of the disclosure, an acoustic apparatus is provided included a transducer, a signal generator, a buffering module, and a proximity detection module. A switching module is coupled to the transducer, signal generator, the buffering module, and the proximity detection module. | 04-07-2016 |
20160097856 | ACOUSTIC APPARATUS WITH DUAL MEMS DEVICES - In accordance with one aspect of the disclosure, an acoustic apparatus is provided including a first transducer, a second transducer, a signal generator coupled to the first transducer, and a proximity detection module coupled to the second transducer. A buffering module is coupled to the first and second transducers and is configured to process analog signals received from the second transducer. | 04-07-2016 |
20160103219 | SONIC SENSORS AND PACKAGES - Embodiments relate to integrated sonic sensors having a transmitter, a receiver and driver electronics integrated in a single, functional package. In one embodiment, a piezoelectric signal transmitter, a silicon microphone receiver and a controller/amplifier chip are concomitantly integrated in a semiconductor housing. The semiconductor housing, in embodiments, is functional in that at least a portion of the housing can comprise the piezoelectric element of the transmitter, with an inlet aperture opposite the silicon microphone receiver. | 04-14-2016 |
20160116585 | OBJECT DETECTION APPARATUS - An object detection apparatus includes a first acquisition unit that acquires, as a first direct wave group, reflected versions of first probing waves transmitted from and received at a first position, and acquires, as a first indirect wave group reflected versions of the first probing waves received at a second position, a second acquisition unit that acquires, as a second indirect wave group, reflected versions of second probing waves transmitted from the second position and received at the first position, and acquires, as a second direct wave group, reflected versions of the second probing wave received at the second position, and a determination unit that determines whether the object is a real object or a ghost in accordance with the receptions times of the first and second direct wave groups and the first and second indirect wave groups. | 04-28-2016 |
20160116586 | OBJECT DETECTION APPARATUS - An object detection apparatus includes a first detection unit that detects an object based on a reflected version of probing waves transmitted by a first distance sensor and received as direct waves by the first distance sensor, a second detection unit that detects the object based on a reflected version of the probing waves received as indirect waves by a second distance sensor, a position calculation unit that calculates position data of the object using a triangulation method, a counter update unit that updates a counter value of a reliability level determination counter by an update amount, and an update amount setting unit that variably sets the value of the update amount depending on which position within detection areas of the first and second distance sensors the position data calculated in the current detection cycle shows the object to be in. | 04-28-2016 |
20160124079 | ULTRASONIC PULSE-ECHO RANGING DEVICE - An ultrasonic pulse-echo ranging device includes a piezo-electric transducer, a transmitter, a receiver, a first transformer having a primary winding coupled to an output of the transmitter and a secondary winding connected to the transducer, and a second transformer having a primary winding coupled to an input of the receiver and a secondary winding connected to the transducer, where the secondary windings of the first and second transformers are in series with the transducer, a first switching element is parallel with the primary winding of the first transformer and controlled to short-circuit this primary winding when the receiver receives the signals from the transducer, and where a second switching element is parallel with the primary winding of the second transformer and controlled to short-circuit this primary winding of when the transmitter drives the transducer to optimize the signal transfer to and from the piezo-electric transducer. | 05-05-2016 |
20160146936 | Sonar Data Collection - Various implementations described herein are directed to a non-transitory computer readable medium having stored thereon computer-executable instructions which, when executed by a computer, may cause the computer to receive sonar data recorded by a sonar device on a marine vessel. The sonar data is recorded during a plurality of fishing trips. The computer may analyze the sonar data to detect sonar data corresponding to one or more fish. The computer may receive locations corresponding to the fish. The computer may also use the locations to display the detected fish on a map. | 05-26-2016 |
20160178748 | Active Indoor Location Sensing For Mobile Devices | 06-23-2016 |
20160252615 | ULTRA SOUND RANGING SYSTEM AND METHOD FOR MEASURING THE DISTANCE BETWEEN OBLIQUE SURFACES | 09-01-2016 |
20190146085 | SYSTEM AND METHOD FOR ULTRASOUND DISTANCE DETECTION | 05-16-2019 |