| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 181 | Reversing sensor without a control box | US11282199 | 2005-11-17 | US07362216B2 | 2008-04-22 | Shih-Hsiung Li |
| A reversing sensor device applies a master-slave type of sensor architecture. The reversing sensor device includes at least one master-sensor and more than one slave-sensor. The master-sensor includes a microprocessor, an ultrasonic emission circuit, a reflective wave detection circuit and an alarm circuit. The master-sensor not only takes charge of detecting the obstacle but can also coordinate the operation timing for each of the slave-sensors. In this way, the master-sensor replaces the functionality of a conventional control box. The master-sensor is connected to the slave-sensors and also uses a time-sharing principle and a polling method to control the timing of each slave-sensor to collect a detection result. In addition, the slave-sensor includes a microprocessor, an ultrasonic emission circuit and a reflective wave detection circuit. | ||||||
| 182 | Acoustic fence | US10967953 | 2004-10-18 | US07245559B2 | 2007-07-17 | Larry R. McDonald; Gary W. Hicks |
| Methods and apparatus determine if an underwater intruder passes under a protective boundary. A sonar sensor system comprises a plurality of sonar sensor modules that are spaced on a protective boundary. A sonar sensor module comprises a sonar transducer (sonar array) that is characterized by an omni-directional radiation pattern that may overlap an omni-directional radiation pattern of an adjacent sonar sensor module transducer. The sonar sensor module collects sonar data such as range information of the target in relation to time. A central processor obtains the sonar data from each sonar module through a telemetry link. The central processor processes the sonar data from the plurality of sonar sensor modules in order to determine an estimated path of the target and may determine if the target should be considered as a threatening underwater intruder from a calculated threat level estimate based on this data. | ||||||
| 183 | Obstacle detection system | US11169580 | 2005-06-30 | US20060016262A1 | 2006-01-26 | Yoshihisa Sato; Masakazu Takeichi; Hiroyuki Kani |
| A plurality of ultrasonic sensors is provided in both front and rear bumpers of a vehicle to detect obstacles around the vehicle. Each sensor sets up a transmission frequency of an ultrasonic pulse signal that should be set up in a frequency adjustment circuit and a center frequency in filter processing in a filter circuit in response to a frequency setting frame transmitted from an ECU. The ECU stores a combination of the transmission frequency and the center frequency for each ultrasonic sensor. | ||||||
| 184 | Vehicle-surroundings monitor apparatus | US11153369 | 2005-06-16 | US20060009883A1 | 2006-01-12 | Masakazu Takeichi; Yoshihisa Sato |
| A vehicle-surroundings monitor apparatus according is provided with a sensor having a transmission/reception means for transmitting an ultrasonic wave to surroundings of a vehicle and receiving a reflected ultrasonic wave from the surroundings, a transmission circuit for generating an ultrasonic wave to be transmitted from the transmission/reception means, and a reception-processing means for processing an ultrasonic wave received by the transmission/reception means, and a control means for supplying a power-supply voltage to the sensor. A power-supply voltage supplied by the control means to the sensor is split into a power-supply voltage to be supplied to the transmission circuit and a power-supply voltage to be supplied to the reception-processing means. | ||||||
| 185 | Acoustic fence | US10346414 | 2003-01-17 | US06813220B2 | 2004-11-02 | Gary W. Hicks; Larry R. McDonald |
| Methods and apparatus determine if an underwater intruder passes under a protective boundary. A sonar sensor system comprises a plurality of sonar sensor modules that are spaced on a protective boundary. A sonar sensor module comprises a sonar transducer (sonar array) that is characterized by an omni-directional radiation pattern that may overlap an omni-directional radiation pattern of an adjacent sonar sensor module transducer. The sonar sensor module collects sonar data such as range information of the target in relation to time. A central processor obtains the sonar data from each sonar module through a telemetry link. The central processor processes the sonar data from the plurality of sonar sensor modules in order to determine an estimated path of the target and may determine if the target should be considered as a threatening underwater intruder from a calculated threat level estimate based on this data. | ||||||
| 186 | Acoustic fence | US10346414 | 2003-01-17 | US20040141419A1 | 2004-07-22 | Gary W. Hicks; Larry R. McDonald |
| Methods and apparatus determine if an underwater intruder passes under a protective boundary. A sonar sensor system comprises a plurality of sonar sensor modules that are spaced on a protective boundary. A sonar sensor module comprises a sonar transducer (sonar array) that is characterized by an omni-directional radiation pattern that may overlap an omni-directional radiation pattern of an adjacent sonar sensor module transducer. The sonar sensor module collects sonar data such as range information of the target in relation to time. A central processor obtains the sonar data from each sonar module through a telemetry link. The central processor processes the sonar data from the plurality of sonar sensor modules in order to determine an estimated path of the target and may determine if the target should be considered as a threatening underwater intruder from a calculated threat level estimate based on this data. | ||||||
| 187 | System for detecting distances using chaotic signals | US10325620 | 2002-12-20 | US20030133362A1 | 2003-07-17 | Luigi Fortuna; Alessandro Rizzo; Mattia Frasca; Marco Branciforte; Marco Bartolone |
| A system for detecting distances for vehicle and robotic applications includes a transducer for generating a transmission signal to be sent in the direction of an obstacle, and for obtaining a receiving signal corresponding to an echo produced by the reflection of the transmission signal off the obstacle. The transducer is driven by a chaos generator, such as a Chua's circuit. The system also includes a correlator for correlating the transmission signal and the receiving signal so that the distance between the obstacle and the transducer is identified by an instant at which the correlation assumes a high value. The transmission signal may be a square-wave signal selectively generated with one first frequency and one second frequency, and jumps between the two frequencies are determined by the instants of emission of the pulses generated by an analog type pulse generator driven by the chaos generator. | ||||||
| 188 | Orthogonally reconfigurable integrated matrix acoustically array | US10308246 | 2002-12-02 | US20030120153A1 | 2003-06-26 | Kenneth R. Erikson |
| A transducer probe has a fully populated, integrated, matrix array of acoustical transducers for ultrasound imaging. The transducer arrays include tiled subarrays of transducers which may be switched (e.g., in real-time) between vertical and horizontal modes, and may further be configured to perform a first level of transmit and receive beam forming functionality with either horizontal or vertical scanning. Example applications include medical imaging, materials testing, and sonar systems. | ||||||
| 189 | Transmit-receive switch apparatus and method | US09989651 | 2001-11-21 | US20030095474A1 | 2003-05-22 | Michael T. McCord |
| A transmit-receive (T-R) switch for achieving fast T-R switching times while ensuring that the signal strength of a received signal is not fully coupled. A differential amplifier and an inverting amplifier, both having a coupling resistor as an input is used so that nearly all of the input signal is sensed by an operational amplifier. This technique improves transducer voltage transfer (coupling) ratio from 15-24% to about 100%. The T-R switch architecture is preferably to short-range, single-transducer acoustic ranging systems. | ||||||
| 190 | ORTHOGONALLY RECONFIGURABLE INTEGRATED MATRIX ACOUSTICAL ARRAY | US09969438 | 2001-10-02 | US20030018260A1 | 2003-01-23 | Kenneth R. Erikson |
| A transducer probe has a fully populated, integrated, matrix array of acoustical transducers for ultrasound imaging, switchable in real time between two orthogonal 1.5D or 1.75D transducers arrays, consisting of tiled subarrays of transducers which may be switched in real time between vertical and horizontal strip arrays by integrated circuits directly attached to the subarrays, for performing a first level of transmit and receive beam forming functionality with either horizontal or vertical scanning. The integrated circuits include a summer circuit for reducing the output signals of each subarray to a single line, reducing the number of lines required in the cable or connection medium. An interface box mates to a host system and facilitates the switching and control function. Impedance matching in the integrated circuits between transducers and cable lines improves signal transmission in cables. Applications include medical imaging, materials testing and sonar systems. | ||||||
| 191 | Range measuring system | US09173967 | 1998-10-16 | US06314055B1 | 2001-11-06 | Eric Foxlin; Russell L. Moore |
| A system is provided for determining range to a wave energy source. The system includes a transmitter for transmitting a burst of pulses of wave energy in response to a trigger signal. A receiver is provided for determining a time of arrival of the burst and from such determined time of arrival, the range to the wave energy source. The receiver includes: an envelope detector for detecting an envelope of the burst; a network for producing an output in response to an early point on the detected envelope occurring prior to a peak in the detected envelope; a timer, responsive to the trigger signal and the network output for determining the time of arrival of the burst; and a processor, responsive to such determined time of arrival, for determining the range of the wave energy source from the transmitter. The receiver includes a differentiator network for producing an output in response to the nth derivative of the detected envelope, where n is an integer greater than one; and, the timer is responsive to the trigger signal and the differentiator output for determining the time of arrival of the burst. The receiver also includes a means for confirming detection of a valid burst after the detection of the early point and a means to transmit and wherein the previously recorded time of arrival point only if it is followed by a valid burst confirmation. | ||||||
| 192 | Obstacle detection system built-in test method and apparatus | US012785 | 1998-01-23 | US6040765A | 2000-03-21 | James R. Cherry; Abel Raynus |
| An obstacle detection system includes an acoustic piezoelectric transducer capable of radiating and receiving ultrasonic energy. During a BIT transmission period, a controller briefly enables a transmit circuit which provides an AC transmit signal that induces oscillatory motion in a piezoelectric element within the transducer. At the end of BIT transmission period the controller disables the transmit circuit and begins BIT receive period operation. Once the transmit circuit is disabled, the oscillatory motion of the piezoelectric element begins to dampen out causing the transducer to generate and provide a vibration generated signal which is input to a receive circuit which detects the presence of the vibration generated signal and provides received status signal indicative thereof. If the vibration generated signal is not present during this period, a system fault exists and the controller notifies the system user. | ||||||
| 193 | Measuring method of a wide range level and an apparatus thereof | US406151 | 1995-03-17 | US5842374A | 1998-12-01 | Hak Soo Chang |
| A method for measuring the water level of a reservoir, a larger river and an underground water and an apparatus thereof comprises a waveguide tube selected in a predetermined length, on the upper portion of which a sonic pulse generator is mounted, and a plurality of sonic receivers (first, second, third . . . nth), such as a microphone, arranged at an interval l from each another, in which the sonic pulse generator generates sonic impulses in a predetermined period, the receivers receive impulses divided into advancing waves and reflecting waves in turns, these impulses are amplified/wave-shaped to be applied to a microprocessor, and the microprocessor measures the time interval t.sub.1 between the advancing wave and the reflecting wave received by first sonic receiver and the time interval t.sub.n-1 between first sonic receiver and the n-1th sonic receiver located close to the water surface so as to calculate the water level L. Also, when the water level L is measured on the slope surface of a reservoir, a larger river, etc., a ball type float is inserted in the waveguide tube. In order to measure the water level of the underground water, a supporting rod, which has a plurality of sonic receivers (first, second, third . . . nth) are fixed at a predetermined interval l, is inserted into an underground water observing tube instead of the waveguide tube. | ||||||
| 194 | Duplexer including a variable capacitance diode for an ultrasound imaging system | US425631 | 1995-04-20 | US5609154A | 1997-03-11 | Ralph Oppelt; Markus Vester |
| A duplexer for an ultrasound imaging-system capable of selectively coupling a transducer element to either a transmitter or a receiver, depending on whether the imaging system is in the transmit mode or receive mode, contains a variable capacitance diode which is connected in a direction opposite that of transmit pulses emitted by the transmitter between the transducer element and the receiver. In this manner, one obtains an improved duplexer that operates with virtually no power loss, without drive circuits, without leakage currents, and with low noise. | ||||||
| 195 | Intrusion detection system | US443684 | 1989-11-30 | US4991146A | 1991-02-05 | Bill J. Ransdell; James J. Phelan |
| A microprocessor-based ultrasonic intrusion detection system includes an initialization mode wherein a plurality of echoes are cumulatively processed to produce a reference or signature data set representing the area to be monitored without intruding objects. Later received echoes are compared to this signature so that an intruding object will cause generation of an alarm signal. Time varying thresholds are utilized to compensate for attenuation caused by increased distance. | ||||||
| 196 | Method for operating a transmitting/receiving circuit and a circuit utilizing the method | US87008 | 1987-08-19 | US4860266A | 1989-08-22 | Dieter Drefahl |
| A transmitting/receiving circuit for an acoustic transducer (W1, W2) wherein the transmitting transducer (W1) is sequentially controlled by different modulated carrier frequencies (f1, f2), where the control is first matched to the inherent frequency (f1) of the transducer (W1) and afterwards the control of the transducer (W1) is by a frequency (f2) outside of the inherent frequency. During a signal reception by the receiving transducer (W2), a lock-out of a phase-locking circuit (PLL) is detected, where with an object to be measured is in a near range an active lock-out due to the frequency shift of the reception signal outside a frequency bandwidth of the phase-locking circuit is detected, and where with an object to be measured is in a far range, a passive lock-out is detected due to the fact that the reception signal amplitude falls below a noise level. | ||||||
| 197 | Detecting apparatus using ultrasonic waves | US63402 | 1987-06-18 | US4835519A | 1989-05-30 | Hideyuki Suzaki; Yukio Yamaguchi |
| A detecting apparatus using ultrasonic waves comprises a sensor unit and a signal processing unit for processing a reception signal sent from the sensor unit to output a detection signal. These units are connected by a cable having three core wires. A power supply signal, an ultrasonic transmission signal and operation indication signal are multiplexed to the first core wire and transmitted from the signal processing unit to the sensor unit. An ultrasonic reception signal and a temperature detection signal are multiplexed to the second core wire and transmitted from the sensor unit to the signal processing unit. The third core wire is used to connect the grounding levels of both units. | ||||||
| 198 | A DIGITAL TRANSCEIVER | EP17159224.9 | 2017-03-03 | EP3370081A1 | 2018-09-05 | The designation of the inventor has not yet been filed |
Disclosed is a transceiver for use in a SONAR system, wherein the transceiver comprises a transmitter portion and a receiver portion, the transceiver comprising a common digital signal processing, DSP, platform, operable to perform signal processing for both transmit and receive operations.
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| 199 | PROGRAMMABLE ULTRASONIC TRANSCEIVER | EP16847378.3 | 2016-09-16 | EP3350589A1 | 2018-07-25 | PRZBYLA, Richard J.; KLINE, Mitchell; HORSLEY, David |
| An ultrasonic transceiver system includes a transmitter block, a receiver block, a state machine, a computer unit. The transmitter block contains circuitry configured to drive an ultrasound transducer. The receiver block contains circuitry configured to receive signals from the ultrasound transducer and convert the signals into digital data. The state machine is coupled to the transmitter and receiver blocks and contains circuitry configured to act as a controller for those blocks. The computing unit is coupled to the transmitter block, the receiver block, and the state machine and is configured to drive the transmitter block and process data received from the receiver block by executing instructions of a program. The program memory is coupled to the computing unit and is configured to store the program. The computing unit is configured to be reprogrammed with one or more additional programs stored in the program memory. | ||||||
| 200 | A METHOD OF DETECTING OBJECTS AND CORRESPONDING APPARATUS | EP17175103.5 | 2017-06-08 | EP3336581A1 | 2018-06-20 | CORONA, Stefano; ALBERTINI, Matteo; D'ANGELO, Francesco |
A method of detecting objects, e.g. by means of piezoelectric transducers, includes transmitting acoustic signals (TW) including sets of pulses towards an object (0) to induce echo signals (EW) resulting from reflection of the acoustic signals at the object, wherein the time delay of the echo signals is indicative of the distance (D) to the object. The method includes transmitting a first acoustic signal including a first set of pulses including a first number of pulses, and checking if a first echo signal resulting from reflection of the first acoustic signal is received with an intensity reaching an echo detection threshold. If the intensity of the first echo signal reaches the echo detection threshold, the distance to the object is calculated as a function of the time delay of the first echo signal. If the intensity of the first echo signal fails to reach the echo detection threshold, one or more further acoustic signals are transmitted including a set of pulses wherein the number of pulses is increased with respect to the number of pulses in said first acoustic signal.
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