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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
121	Moving sound source identifying system	US893821	1978-04-05	US4208735A	1980-06-17	Fumiyoshi Suzuki; Fumiyoshi Sasaki; Guen Nishinomiya
A moving sound source identifying system wherein a correlation function signal between two sound signals derived respectively from two microphones arranged apart from each other on the ground for respectively receiving sounds which are simultaneously emitted by a sound source is used for identifying whether the sound source is moving or stationary and whether it is flying or moving on the ground, by means of discriminating the variation of respective times whereat maximum or minimum levels of the correlation function signal appear, which variation is caused in accordance with the angle of elevation of the sound source. Continuously obtained results of the identification are utilized for classifying sound sources, removing the noise disturbance and automatically pursuing the sound source.
122	Tilt compensation for acoustic transducing system	US930824	1978-08-03	US4179682A	1979-12-18	Robert L. Townsend
A tilt compensated transducer array is provided with omni-directional transducers, compensated bi-directional transducers, and a processor which forms omni and bi-directional beams that are combined to cancel image lobes to give the array a uni-directional characteristic in which but a single, steerable main lobe is formed over a board range of steering angles. When the elements are located along a flexible line about which they naturally twist, a pair of orthogonally oriented bi-directional transducers is tilt or twist compensated to make image lobe cancellation possible. This is done by a compensator at each pair of bi-directional transducers which modifies their outputs in accordance with the deflection angle from the local vertical so as to obtain an output signal substantially the same as would be obtained by a single, properly oriented bi-directional transducer. Additionally, the use of a tilt compensated element permits discrimination of long range targets from short range targets.
123	Apparatus for locating sources of sound in water	US609405	1975-09-02	US4056801A	1977-11-01	Reinhard Leisterer; Manfred Oelfke; Hans Woiczik; Hans-Joachim Meyer; Rolf Ostermeier
Apparatus for locating sources of sound in water, including a hydrophone system which is suspended from a buoy after being dropped into the water and whose one given reference axis is automatically aligned with the magnetic field of the earth by mechanically coupling the hydrophone system with a compass magnet (north reference). The hydrophones of the hydrophone system are electrically connected with a switching or control box by means of transmission wires which are insulated with an elastic plastic and pass freely through the water and the hydrophone system is mechanically fastened to the switching box to be rotatable in a recoilless manner about an axis which is perpendicular to the surface of the earth. The control box is in turn connected to the buoy by means of an elastic suspending cable and an electrical connecting cable.
124	Array transducer angular tracking system	US217406	1972-01-12	US3931607A	1976-01-06	Richard D. Ingram
A system for measuring the angular displacement of a signal source relativeo the center line of an array type transducer. The sum and difference signals of the array are applied to the system which phase shifts the incoming signals, provides a summation of selected phase shifted signals and applies the summed signals to a phase detector. A normalized signal is derived that is an amplitude measurement indicative of the angle between the signal source, and a line incident normal to the array, wherein the sum is a maximum and the difference is zero.
125	Divers navigation display	US51034774	1974-09-30	US3927388A	1975-12-16	MEDRANO ALFRED M
A digital circuit for computing unknown angle theta comprises first and second programmable read-only-memories (PROMS) each outputting an eight-bit representation of the logarithm of respective digital inputs representing Ksin theta and Kcos theta respectively. Second PROMS each output the two''s compliment of the logarithm respective digital inputs, a pair of adders connected to the PROMS produce an output corresponding to the logarithm of tangent theta , another pair of PROMS are connected to the adders and are programmed as look-up tables to produce outputs corresponding to theta . A latch circuit and a digitalto-analog convertor complete the novel circuit.
126	Passively acquired bearing to active sonar source	US38910873	1973-08-17	US3879701A	1975-04-22	STAGG GERALD W
A DIGITAL SONAR DETECTION DEVICE FOR PASSIVELY ACQUIRING FREQUENCY BEARINGS AND GENERAL AZIMUTH TO ECHO RANGING VESSELS A PLURALITY OF OMNIDIRECTIONAL HYDROPHONES ARE EQUALLY SPACED IN A CIRCULAR ARRAY. LOGIC GATING AND FREQUENCY SCRUTINIZATION IS USED FOR PROCESSING THE RECEIVED SIGNALS TO INSURE NO OTHER SIGNALS WILL INTERFERE.
127	Device for determining the direction of propagation of a plane wave	US3792479D	1972-04-21	US3792479A	1974-02-12	FAUGERAS A; LAMBERT A
A device for determining the direction of propagation of a plane wave in an isotropic medium, in which the detectors are uniformly distributed on a circle. These detectors are disposed in groups each corresponding to a predetermined direction. Each detector is connected to a chain consisting of the same number of adders as detectors in a group. The adders are interconnected by shift registers.
128	Acoustic locator with array of microphones	US3736557D	1969-11-26	US3736557A	1973-05-29	BRYNK G
Acoustic locator comprising an array of microphones located on the outer ends of radial arms extending from a central support. The inner ends of the arms are pivotally connected to a housing rotatably mounted on a table of the support which also comprises a plurality of legs. A sighting device is applied to the arms for orienting the microphones, once the support is set up. After orientation, longitudinally adjustable posts are swung downwardly from the arms into engagement with the ground for supporting the arms and microphones.
129	Method and apparatus for determining the diretion of propagation of a plane wave	US3691514D	1970-06-16	US3691514A	1972-09-12	GOURSOLAS ANNE-MARIE JEANNE; LAMBERT ANDRE SIMON GEORGES
A method and apparatus for determining the direction of propagation of a plane wave, wherein the analog signals occuring at preselected time intervals from a plurality of detectors spaced along a predetermined direction are converted to digital signals. The difference between the aggregated value of the digital signals of the detected wave and a wave in the predetermined direction providing an indication of the deviation of the path of the wave from the predetermined direction.
130	Direction finder	US3490024D	1968-09-30	US3490024A	1970-01-13	SHERRILL WILLIAM M; LORENZ RICHARD

131	Underwater homing system	US14306369	2014-06-17	US10139469B1	2018-11-27	Darren Payne
The ultrasonic homing assembly includes a base unit that may be coupled to a boat anchor. A base processor is coupled to the base unit. A transmitter is coupled to the base unit. The transmitter is operationally coupled to the processor. The transmitter transmits a location signal. A remote unit may be worn by a diver. A remote processor is coupled to the remote unit. A receiver is coupled to the remote unit. The receiver is operationally coupled to the remote processor. The receiver receives the location signal from the transmitter. A display is coupled to the remote unit. The display is operationally coupled to the processor. The display directs the diver toward the base unit. The diver swims toward the boat anchor.
132	Determining threats based on information from road-based devices in a transportation-related context	US15177535	2016-06-09	US10079929B2	2018-09-18	Richard T. Lord; Robert W. Lord; Nathan P. Myhrvold; Clarence T. Tegreene; Roderick A. Hyde; Lowell L. Wood, Jr.; Muriel Y. Ishikawa; Victoria Y. H. Wood; Charles Whitmer; Paramvir Bahl; Douglas C. Burger; Ranveer Chandra; William H. Gates, III; Paul Holman; Jordin T. Kare; Craig J. Mundie; Tim Paek; Desney S. Tan; Lin Zhong; Matthew G. Dyor
Techniques for ability enhancement are described. Some embodiments provide an ability enhancement facilitator system (“AEFS”) configured to enhance a user's ability to operate or function in a transportation-related context as a pedestrian or a vehicle operator. In one embodiment, the AEFS is configured perform vehicular threat detection based on information received at a road-based device, such as a sensor or processor that is deployed at the side of a road. An example AEFS receives, at a road-based device, information about a first vehicle that is proximate to the road-based device. The AEFS analyzes the received information to determine threat information, such as that the vehicle may collide with the user. The AEFS then informs the user of the determined threat information, such as by transmitting a warning to a wearable device configured to present the warning to the user.
133	Visible-Light- and Time-of-Flight-Based Passive Tracking System	US15646984	2017-07-11	US20180143318A1	2018-05-24	Stanislaw K. Skowronek; Christopher M. Wade; Antonio A. Ricco
A passive-tracking system is described herein. The system can include a visible-light sensor, a sound transducer, a thermal sensor, a time-of-flight (ToF) sensor, and a processor. The processor can receive visible-light frames from the visible-light sensor, sound frames from the sound transducer, thermal frames from the thermal sensor, and modulated-light frames from the ToF sensor. The processor, based on data of the visible-light and temperature frames, can also determine that an object is a living being and can provide an X and Y position of the object. The processor, based on data of the sound and positioning frames, can determine a Z position of the object. The X, Y, and Z positions may combine to form a three-dimensional (3D) position of the object. The processor can also passively track the object over time by selectively updating the 3D position of the object.
134	Sound direction estimation device, sound direction estimation method, and sound direction estimation program	US14023622	2013-09-11	US09971012B2	2018-05-15	Keisuke Nakamura; Kazuhiro Nakadai
A sound direction estimation device includes a transfer function storage unit configured to store transfer functions of sound sources in correlation with directions of the sound sources, a calculation unit configured to calculate the number of classes to be searched and a search interval for each class based on a desired search range and a desired spatial resolution for searching for the directions of the sound sources, and a sound source localization unit configured to search the search range for every search interval using the transfer function, to estimate the direction of the sound source based on the search result, to update the search range and the search interval based on the estimated direction of the sound source until the number of classes calculated by the calculation unit is reached, and to estimate the direction of the sound source.
135	High frequency acoustic spectrum imaging method and device	US14803174	2015-07-20	US09927521B2	2018-03-27	Bastiaan Brand
A method and a device for high frequency acoustic spectrum imaging for an object over a field of view. A camera captures an image of the object. A raster with grids is created as an overlay on the captured image. A directional microphone detects high frequency acoustic waves emanating from the object. An acoustic data signal corresponding to the high frequency acoustic waves is generated by a microphone data processing unit. The coordinates of the focal point of the directional microphone on the grid of the raster is recorded and sent as a real-time feedback position signal to a processor for each measurement of the acoustic signal data. The processor plots a visual representation of the acoustic signal data mapping it to the corresponding coordinates on the raster and creates a high frequency acoustic spectrum image for the object by superimposing the raster on the captured image.
136	WEARABLE AUDITORY FEEDBACK DEVICE	US15490560	2017-04-18	US20170303052A1	2017-10-19	Renee Kakareka; Adrien Courdavault
A wearable auditory feedback device includes a frame, a plurality of microphone arrays, a plurality of feedback motors, and a processor. The frame is wearable on a user's head or neck. The microphone arrays are embedded in the frame on a left side, a right side, and a rear side with respect to the user. The feedback motors are also embedded in the frame on the left side, the right side, and the rear side with respect to the user. The processor is configured to receive a plurality of sound waves collected with the microphone arrays from a sound wave source, determine an originating direction of the sound waves, and activate a feedback motor on a side the frame corresponding to the originating direction.
137	Automatic content transfer	US15285446	2016-10-04	US09774998B1	2017-09-26	Olusanya Temitope Soyannwo; Tina Yung-Ting Chen; Edward Dietz Crump; Kurt Wesley Piersol; Kavitha Velusamy
A computing system with multiple devices local to an environment facilitates active transfer among the multiple devices as a user moves about the environment. The devices may sense a presence or non-presence of the user and attempt to coordinate transfer to a device proximal to the user. In another implementation, the devices may communicate with a remote system that monitors a location of the user within the environment and causes content associated with the user to transfer between computing devices of the system based on the location and movement of the user.
138	Thermal- and modulated-light-based passive tracking system	US15359485	2016-11-22	US09720086B1	2017-08-01	Stanislaw K Skowronek; Christopher M. Wade; Antonio A Ricco
A passive-tracking system is described herein. In one example, the passive-tracking system includes a thermal sensor configured to generate a series of thermal frames based on an object in a monitoring area. In this example, the system also includes a processor and a time-of-flight (ToF) sensor configured to generate a series of modulated-light frames based on the object. The processor may be configured to receive the thermal and modulated-light frames and based at least in part on the data of the frames, generate a novelty representation of the object. Based on this data, the processor may also be configured to determine whether the object is human and if so, generate a three-dimensional (3D) position of the human object. The processor may also be configured to passively track the human object over time by, based on the novelty representation, selectively updating the 3D position of the human object.
139	Device positioning using acoustic and radio signals	US14201897	2014-03-09	US09689958B1	2017-06-27	Ben Wild; Robert A Barton
The present technology may be directed a system for determining an angle and distance between a positioning node and secondary device using a plurality of acoustic transmitters to transmit acoustic ranging signals that are modulated using ranging sequences, respectively. The system includes an acoustic receiver to detect the acoustic ranging signals, and a signal processor to calculate times of arrival and a plurality of aliased angles of arrival of the acoustic ranging signals. An anti-aliasing module may select an angle of arrival from the calculated plurality of aliased angles using the times of arrival of the acoustic ranging signals. A time of flight may be calculated from a comparison of times of arrival for radio signals and the acoustic signals. The time of flight may be used to calculate the distance between the positioning node and secondary device.
140	Methods and apparatus for detection system having fusion of radar and audio data	US14068318	2013-10-31	US09612326B2	2017-04-04	Richard S. Herbel; James W. Rakeman
Methods and apparatus for locating a weapon by fusing audio and radar data. An exemplary embodiment comprises detecting a weapon firing event with an audio sensor system, detecting a projectile fired from the weapon with a radar system, calculating a state vector associated with the projectile detection, identifying a location of the weapon by backtracking the state vector to the detected time of the weapon firing event time, and communicating the location of the weapon.

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