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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	Method and system for real-time information analysis of textual material	US462129	1995-06-05	US5559940A	1996-09-24	William H. Hutson
A multi-dimensional processing and display system that is used with equal data to provide a system by which large volumes of such textual data may be efficiently sorted and searched. Textual data that is input to the multi-dimensional processing and display system is from one or more documents that are reformatted and translated into one or more numeric matrices. The matrices are modified to enhance and/or suppress certain words, phrases, subjects, etc. Thereafter, a single two-dimensional data is formed by concatenating the numeric matrices. The multi-dimensional processing and display system creates and maintains a historical database which is also concatenated in the two-dimensional matrix. Once the textual data is in the form of a two-dimensional matrix, the data can be analyzed efficiently, for example, using singular value decomposition (SVD). In doing so, the two-dimensional concatenated matrix is decomposed to obtain a compressed form of the numeric matrix. Certain data elements in the two-dimensional matrix may be enhanced, while certain other data elements may be suppressed. After data enhancement and/or suppression, the two-dimensional matrix is partitioned and rearranged to form enhanced multi-dimensional matrix. All or portions of the enhanced multi-dimensional matrix are then visually displayed. Lexical, semantic, and/or textual constructs of interest may be displayed as opaque objects within a three-dimensional transparent cube, enabling a user to review many documents quickly and easily.
182	Passive acoustic aquatic animal finder apparatus and method	US545954	1990-07-02	US5099455A	1992-03-24	Jorge M. Parra
Aquatic animal finder apparatus and method include one or more passive transducers for converting sounds, including bio-soundwaves from a living aquatic animal source traveling in a body of water, to electrical signals, the transducer is caused to scan about a selected axis, the electrical signals are filtered to eliminate all man-made signals of a periodic character and pass bio-sound electrical signals. A discriminator is connected to the filter and programmed to pass a predetermined pattern of the bio-soundwave electrical signals constituting a sonic profile, signature or imprint of a selected aquatic animal. The direction of a selected aquatic animal is detected and presented to the user and range, depth and direction of movement of the selected aquatic animal are determined solely from the biosound signals received from the aquatic animal.
183	Passive active underwater sound detection apparatus	US326508	1989-03-20	US4974213A	1990-11-27	Thomas L. Siwecki
A three-dimensional large scale rectilinear array of hydrophones comprising a plurality of equally spaced, fixed position, omni-directional, electro-acoustic transducers, utilizes aperture steering circuits to create a polar coordinate map indicating the bearing and elevation of incoming sound signals. The attitude and depth of the array is controlled by an array maneuvering system to position the array for maximum signal strength and to rotate the array to a horizontal position for maneuvering in shallow water. The geometric configuration combined with digital signal processing circuits provide improved sound detection threshold over linear and single planar arrays. An acoustically transparent housing is used to enclose the array. The shape of the housing and supporting structural frame are adapted to limit self-induced background noise.The hydrophones are also alternately connected to circuits for activating the hydrophone array to produce a low frequency (100 to 1000 Hz) frequency sound pulse defining a beam having a predetermined vertical and horizontal solid angle and predetermined bearing and azimuth.
184	Method for estimating signal source locations and signal parameters using an array of signal sensor pairs	US795623	1985-11-06	US4750147A	1988-06-07	Richard H. Roy, III; Arogyaswami J. Paulraj; Thomas Kailath
The invention relates generally to the field of signal processing for signal reception and parameter estimation. The invention has many applications such as frequency estimation and filtering, and array data processing, etc. For convenience, only applications of this invention to sensor array processing are described herein. The array processing problem addressed is that of signal parameter and waveform estimation utilizing data collected by an array of sensors. Unique to this invention is that the sensor array geometry and individual sensor characteristics need not be known. Also, the invention provides substantial advantages in computations and storage over prior methods. However, the sensors must occur in pairs such that the paired elements are identical except for a displacement which is the same for all pairs. These element pairs define two subarrays which are identical except for a fixed known displacement. The signals must also have a particular structure which in direction-of-arrival estimation applications manifests itself in the requirement that the wavefronts impinging on the sensor array be planar. Once the number of signals and their parameters are estimated, the array configuration can be determined and the signals individually extracted. The invention is applicable in the context of array data processing to a number of areas including cellular mobile communications, space antennas, sonobuoys, towed arrays of acoustic sensors, and structural analysis.
185	Space monitoring gradient system	US38673273	1973-08-08	US3838389A	1974-09-24	TRIEBOLD K; BUDDRUSS C; CRONJAEGER A
A space monitoring gradient system including at least a plurality of transducers arranged to produce at least two pairs of transducers with the spacing of the transducer of each pair being less than one wavelength of the received signals produced by a noise source at the highest receivable frequency. The axes of the two pairs of transducers are perpendicular to one another with the axis of one pair being parallel to the ground and the axis of the other pair being perpendicular to the ground. A separate automatic gain control (AGC) amplifier is connected in series with the output of each of the transducers, and first and second difference circuits are provided for forming respective gradient voltage signals from the outputs from the respective AGC amplifiers of each pair of transducers. A first comparator compares the gradient voltage signal at the output of the first difference circuit, which is associated with a pair of transducers parallel to the ground, with a first settable comparison voltage and produces an ''''L'''' signal at its output whenever the output of the first difference circuit is equal to or less than the first comparison voltage. A second comparator compares the gradient voltage signal at the output of the second difference circuit with a second settable difference voltage and produces an ''''L'''' signal output whenever the output of the second difference circuit is greater than the second comparison voltage. The outputs of the first and second comparators are fed to an AND gate which produces an ''''L'''' signal at its output when an ''''L'''' signal is present at each of its inputs.
186	Acoustic goniometer	US3453626D	1967-12-21	US3453626A	1969-07-01	WILSON DENNIS L; KNIGHT GORDON R

187	Direction indicator	US19927550	1950-12-05	US3302204A	1967-01-31	MATHES ROBERT H

188	PASSIVE MICROPHONE ARRAY LOCALIZER	US15754914	2015-08-31	US20180249267A1	2018-08-30	Daniel C. Klingler; Jay S. Coggin
A relative location and orientation of microphone arrays relative to each other is estimated without actively producing test sounds. In one instance, the relative location and orientation of a second microphone array relative to a first microphone array is estimated based on the direction-of-arrival (DOA) of an ambient sound at the first microphone array, the DOA of the ambient sound at the second microphone array, and the time-difference-of-arrival (TDOA) of the ambient sound between the first microphone array and the second microphone array. Other embodiments are also described and claimed.
189	VOICE DIRECTION SEARCHING SYSTEM AND METHOD THEREOF	US15527168	2017-02-20	US20180188347A1	2018-07-05	PENG GAO; Lichun FAN; Lei ZHU
The present invention relates to a technical field of voice interaction, especially to a voice direction searching system and the method thereof. The present invention utilizes a microphone array to collect voice signals made by an acoustic source, and utilizes multiple MEMS microphones to identify an MEMS microphone closest to the acoustic source, so that the voice direction searching system can accurately identify voice direction signals.
190	Planar sensor array	US15328369	2015-07-16	US09949033B2	2018-04-17	Hanchi Chen; Pallage Thushara Abhayapala; Wen Zhang
A method (500) for constructing a three-dimensional (3D) wave field representation of a 3D wave field using a two-dimensional (2D) sensor array (110), said method comprising: acquiring 3D wave field signals using a 2D array (110) of sensors (340, 350), said 2D array (110) of sensors (340, 350) comprising omnidirectional sensors (340) and first order sensors (350) arranged in a 2D plane; digitizing said acquired 3D wave field signals; computing even coefficients of spherical harmonics dependent upon said digitized 3D wave field signals acquired by said omnidirectional sensors (340); computing odd coefficients of said spherical harmonics dependent upon said digitized 3D wave field signals acquired by said first order sensors (350); and constructing a 3D wave field representation dependent upon said computed even and odd coefficients for said acquired 3D wave field signals.
191	Monitoring device, monitoring method and monitoring program	US14786742	2014-01-28	US09946921B2	2018-04-17	Masahiro Tani; Osamu Houshuyama; Takafumi Koshinaka; Ryoma Oami; Hiroyoshi Miyano
A monitoring device includes a crowd behavior analysis unit 21 and an abnormality degree calculation unit 24. The crowd behavior analysis unit 21 specifies a behavior pattern of a crowd from input video. The abnormality degree calculation unit 24 calculates an abnormality degree from a change of the behavior pattern.
192	System and method to assist in vehicle positioning	US14671163	2015-03-27	US09776520B2	2017-10-03	Keyur M Shah
A method for aligning a vehicle at a charging station may include determining the distance between each sensor of the plurality of sensors and a target surface of the charging station. The method may further include aligning the vehicle at the charging station using the determined distance data, and charging the electric vehicle at the charging station. The method may further include using the determined distances to align the side of the vehicle substantially parallel to the target surface.
193	Planar Sensor Array	US15328369	2015-07-16	US20170180861A1	2017-06-22	Hanchi Chen; Pallage Thushara Abhayapala; Wen Zhang
A method (500) for constructing a three-dimensional (3D) wave field representation of a 3D wave field using a two-dimensional (2D) sensor array (110), said method comprising: acquiring 3D wave field signals using a 2D array (110) of sensors (340, 350), said 2D array (110) of sensors (340, 350) comprising omnidirectional sensors (340) and first order sensors (350) arranged in a 2D plane; digitizing said acquired 3D wave field signals; computing even coefficients of spherical harmonics dependent upon said digitized 3D wave field signals acquired by said omnidirectional sensors (340); computing odd coefficients of said spherical harmonics dependent upon said digitized 3D wave field signals acquired by said first order sensors (350); and constructing a 3D wave field representation dependent upon said computed even and odd coefficients for said acquired 3D wave field signals.
194	Sound processing device, sound processing method, and sound processing program	US14454095	2014-08-07	US09664772B2	2017-05-30	Kazuhiro Nakadai; Keisuke Nakamura; Lana Sinapayen; Michita Imai
A sound processing device includes a sound collection unit configured to record a sound signal, a tilt information acquisition unit configured to acquire tilt information on a tilt of the sound processing device, an azimuth estimation unit configured to estimate azimuths of a sound source in a plane in which the sound collection unit is arranged based on the sound signals which are recorded by the sound collection unit at least at two times; and an elevation angle estimation unit configured to estimate an elevation angle of the sound source with respect to the plane in which the sound collection unit is arranged based on the tilt information acquired by the tilt information acquisition unit and the azimuths estimated by the azimuth estimation unit at least at two times.
195	PASSIVE ACOUSTIC DETECTION, TRACKING AND CLASSIFICATION SYSTEM AND METHOD	US14209548	2014-03-13	US20170139031A1	2017-05-18	Hady Salloum; Alexander Sedunov; Nikolay Sedunov; Alexander Sutin
An acoustic sensing system and method includes at least one cluster of acoustic sensors in communication with a computing device. The computing device is configured to process received acoustic signals, and provide at least one of detection of the acoustic source presence; determination of direction of arrival of an acoustic wave emitted by an acoustic source; and classification of the acoustic source as to its nature. The cluster may include at least two sensors and the computing device may be configured to process the received acoustic signals and provide localization of the acoustic source in three dimensions. The cluster of acoustic sensors may comprise at least one seismic wave sensor.
196	METHOD FOR CALCULATING ANGULAR POSITION OF PERIPHERAL DEVICE WITH RESPECT TO ELECTRONIC APPARATUS, AND PERIPHERAL DEVICE WITH FUNCTION OF THE SAME	US15338887	2016-10-31	US20170123037A1	2017-05-04	Sun-woo KIM; Hyun-koo KANG; Jin LEE
A method of calculating an angular position of a peripheral device with respect to an electronic apparatus, a peripheral device, and an electronic apparatus are provided. The method includes receiving sounds, by the peripheral device, from each of a pair of loudspeakers provided in the electronic apparatus; and calculating, by the peripheral device, an angular position of the peripheral device with respect to a predetermined direction, based on a time difference between respective points of time in receiving the sounds from each loudspeaker.
197	ULTRA-SOUND COMMUNICATION SYSTEM	US14324203	2014-07-06	US20170032367A1	2017-02-02	Joost van Beek; Radu Surdeanu; Franciscus Widdershoven; Patrice Gamand; Rik Jos; Gerardo Daalderop; Hans Rijns
A device is disclosed. The device includes a plurality of microphones to receive ultra-sound signals, wherein the ultra-sound signals include an encoded data. The device also includes a microcontroller coupled to the plurality of microphones. The microcontroller is configured to detect the ultra-sound signals through the plurality of microphones. The detection of the ultra-sound signals includes calculating an angle of arrival of the ultra-sound signals at a microphone in the plurality of microphones. The microcontroller is configured to perform a transaction based on the encoded data received via a microphone in the plurality of microphones.
198	Methods and systems for use in tracking targets for use in direction finding systems	US13473963	2012-05-17	US09523758B2	2016-12-20	Benjamin Alan Stensland; Kevin Luke Mace; David Mark McClelland
A first user device transmits a first signal, and a second user device transmits a second signal. A processing unit receives the first signal and the second signal. The processing unit identifies the first user device as an active target and the second user device as an active tracking device based on a predefined rule set including a plurality of selection criteria.
199	SOUND SOURCE LOCALIZATION USING SENSOR FUSION	US14628806	2015-02-23	US20160249132A1	2016-08-25	Omid Oliaei
Sound source localization using sensor fusion is presented herein. A device can include a sensor component that is configured to receive, from microphone(s), acoustic information corresponding to a sound source, and receive, from a set of sensors, motion information corresponding to the device. Further, the device can include a sensor fusion component that is configured to determine, based on the acoustic information and the motion information, coordinate information representing a location of the device with respect to the sound source, and send the coordinate information directed to a computing device. In an example, the sensor fusion component can determine an orientation of the device based on the motion information, and determine the coordinate information based on the orientation. In another example, the sensor fusion component can determine an angle of arrival of an acoustic wave from the sound source, and determine the coordinate information based on the angle of arrival.
200	PRODUCING A HYDROCARBON FLUID WHEREIN USING A FIBER OPTICAL DISTRIBUTED ACOUSTIC SENSING (DAS) ASSEMBLY	US15064316	2016-03-08	US20160223695A1	2016-08-04	Paul Gerard Edmond LUMENS
A method of producing a hydrocarbon fluid from a subsurface formation, wherein use is made of a directionally sensitive Distributed Acoustic Sensing (DAS) fiber optical assembly having adjacent lengths of optical fiber (A,B) with different directional acoustic sensitivities, which are used to detect the direction (α) of acoustic signals relative to the lengths of optical fiber (A,B).

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