| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 81 | Logarithmic fast time constant sonar receiver | US3622959D | 1963-07-10 | US3622959A | 1971-11-23 | WATTERS EDWARD C |
| 1. A logarithmic fast time constant sonar receiver comprising: A PLURALITY OF CIRCUITS FOR PRODUCING SIMULTANEOUS SIGNALS FROM A PLURALITY OF AZIMUTH BEAMS, A PLURALITY OF DETECTORS, EACH OF SAID DETECTORS CONNECTED TO A DIFFERENT ONE OF SAID CIRCUITS, A LOGARITHMIC AMPLIFIER, FIRST SWITCHING MEANS SEQUENTIALLY CONNECTING SAID AMPLIFIER TO THE OUTPUTS OF SAID DETECTORS, A PLURALITY OF LOWPASS FILTERS, AND SECOND SWITCHING MEANS SEQUENTIALLY CONNECTING SAID PLURALITY OF LOWPASS FILTERS TO THE OUTPUT OF SAID AMPLIFIER, SO THAT SAID PLURALITY OF SIGNALS ARE SEQUENTIALLY PROCESSED.
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| 82 | Zoned array sonar system | US3588799D | 1969-09-15 | US3588799A | 1971-06-28 | GROSS KENNETH W |
| A SLOPE FILTERING ARRANGEMENT FOR A ZONED ARRAY SONAR SYSTEM USING RC NETWORKS AND APPROPRIATE INVERTERS. THE DIFFERENT ZONES ARE PROVIDED WITH DIFFERENT FREQUENCY RESPONSES WITHOUT SIGNIFICANT PHASE DISCREPANCIES BETWEEN THE VARIOUS SIGNAL PROCESSING CHANNELS PROVIDED FOR THE ZONES.
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| 83 | Sonic ray tracer | US3428795D | 1964-12-28 | US3428795A | 1969-02-18 | MORELAND WILLIAM R; PHILLIPS ALONZO W |
| 84 | Echo-sounding apparatus with stabilized narrow beam | US38198264 | 1964-07-13 | US3316530A | 1967-04-25 | ROY HOPKIN PETER; WILLIAM HALLIDAY |
| 85 | Signal monitoring instrument | US13405861 | 1961-08-25 | US3202968A | 1965-08-24 | EADY JR HERMAN R; STRAIT ROBERT D; ATKINSON PAUL I |
| 86 | Reverberation control of gain | US54279644 | 1944-06-29 | US2583531A | 1952-01-29 | LEWIS HATHAWAY JARRETT |
| 87 | Reverberation control of gain | US54279544 | 1944-06-29 | US2566858A | 1951-09-04 | SEBRING PAUL B |
| 88 | Sending and receiving signaling system | US57308545 | 1945-01-16 | US2475609A | 1949-07-12 | GAULD BROWNLEE B |
| 89 | Multimission and multispectral sonar | US15476137 | 2017-03-31 | US10132924B2 | 2018-11-20 | Jens Steenstrup; Christopher Tiemann; Mark Chun; Kirk Hobart |
| A survey system including a multibeam echo sounder having a single projector array and a single hydrophone array constructs a multi-signal message and deconstructs a corresponding multi-signal echo to substantially simultaneously perform multiple survey missions. | ||||||
| 90 | DETECTION APPARATUS, DETECTION METHOD, AND DETECTION PROGRAM | US15905899 | 2018-02-27 | US20180267167A1 | 2018-09-20 | TADASHI MORITA; MASAHIKO HASHIMOTO |
| A detection apparatus that includes correlation processing systems that each find a correlation between a predetermined code sequence and a wave detection signal obtained by detecting a phase-modulated input wave at a frequency different from a frequency used by a different one of the correlation processing systems, and thereby generate a correlation signal, level reduction processors that each receive the correlation signal from a corresponding one of the plurality of correlation processing systems and reduce a level of the received correlation signal when the correlation signal is not to be used for detection of the target or do not reduce the level of the received correlation signal when the correlation signal is to be used for detection of the target, and a detector that detects at least presence or absence of the target based on the correlation signal processed by each of the plurality of level reduction processors. | ||||||
| 91 | METHOD OF OPERATING A CONFOCAL WHITE LIGHT SENSOR ON A COORDINATE MEASURING MACHINE | US15922825 | 2018-03-15 | US20180203119A1 | 2018-07-19 | Rudolf Kern; Jochen Burger; Kurt Brenner |
| A method for operating a confocal white light sensor on a coordinate measuring machine including a sensor carrier configured to couple a coordinate measurement sensor that is movable in a straight movement direction relative to a base of the coordinate measuring machine is provided. A confocal white light sensor is coupled to the sensor carrier and oriented in the straight movement direction toward a reference body. The sensor carrier and the reference body are moved relative to one another in the straight movement direction, and a measurement signal representing a distance between the confocal white light sensor and the reference body is generated at different movement positions. Information relating to a relationship between measurement signals of the confocal white light sensor and an actual distance of the white light sensor to a measurement object is obtained and a measurement value of the object distance is generated. | ||||||
| 92 | CONTROLLING AN OUTPUT SIGNAL IDEPENDENTLY OF THE FIRST HARMONIC | US15092982 | 2016-04-07 | US20170115391A1 | 2017-04-27 | Johan Camiel Julia JANSSENS; Pavel HORSKY; Petr KAMENICKY |
| A method includes configuring a transmitter to provide at least three output levels used to form an output signal. The method further includes adjusting a duration of at least one of the output levels to control an average value of the output signal independently of an amplitude of a first harmonic of the output signal. | ||||||
| 93 | METHOD FOR IMPROVING PERFORMANCE OF A SODAR SYSTEM | US14432450 | 2013-10-02 | US20150241561A1 | 2015-08-27 | Andrew Louis Martin |
| A method is disclosed for improving performance of a Sodar system adapted to locate discontinuities in the atmosphere by transmitting pulse compression signals such as plural acoustic chirps. The method comprises transmitting the acoustic chirps, receiving acoustic echoes of the chirps, and processing the acoustic echoes to provide an indication of the discontinuities, wherein the processing includes correcting range or resolution error associated with the acoustic echoes. | ||||||
| 94 | Echolocation Systems and Methods | US13803731 | 2013-03-14 | US20140269189A1 | 2014-09-18 | Daniel Kish; Derik DeVecchio |
| An echolocation device assists visually impaired persons to navigate their environment. The echolocation device comprises a micro control unit, a power source operably connected to the micro control unit, a band pass preamplifier operably connected to the micro control unit, a power amplifier operably connected to the band pass preamplifier, a piezoelectric speaker operably connected to the power amplifier, and a user interface operably connected to the micro control unit. The device emits sound waves that echo off nearby surrounding objects. The visually impaired person listens to the echoes to determine the location or size of the surrounding objects. | ||||||
| 95 | System and method for a virtual reference interferometer | US13203186 | 2010-02-24 | US08797539B2 | 2014-08-05 | Michael Galle |
| An interferometer generates interference between two (or more) waves that have traveled separate paths so as to measure a quantity of difference between these paths. One of these paths, the reference path, is usually one with well known spatial and material properties (such as free 5 space). The other path(s) is(are) the test path(s). The main difficulties in interferometry stem from the production and operation of this physical reference path. The present invention solves this problem by replacing the physical reference path with a virtual one. This is done by suitable operation on the physically generated interference pattern of an unreferenced interferometer with a virtually generated sinusoid of frequency corresponding to the desired reference path length. The result is a new form of interferometer called a Virtual Reference Interferometer. | ||||||
| 96 | DISTANCE ESTIMATION USING SOUND SIGNALS | US13698401 | 2011-05-13 | US20130064042A1 | 2013-03-14 | Ronaldus Maria Aarts; William John Lamb |
| An apparatus comprises a test signal generator (401) which generates an ultrasonic test signal by modulating an audio band test signal on an ultrasonic signal. The ultrasonic test signal is radiated from a parametric loudspeaker (403) and is demodulated by non-linearities in the air. A reflected audio signal may arise from reflections of an object, such as a wall. An audio band sensor (405) generates an audio band captured signal which comprises the demodulated reflected audio band signal. A distance circuit (407) then generates a distance estimate for the distance from the parametric loudspeaker (403) to the object in response to a comparison of the audio band captured signal and the audio band test signal. Specifically two signals may be correlated to determine a delay corresponding to the full path length. Based on the distance estimates an audio environment may be estimated and a sound system may be adapted accordingly. | ||||||
| 97 | Moving object detecting apparatus | US13328086 | 2011-12-16 | US08218395B2 | 2012-07-10 | Fumihiro Kasano; Susumu Katayama; Toru Mugiuda; Kazushi Goto; Hidehiko Fujikawa; Motohiro Minamino |
| A moving object detecting apparatus includes: a transmitting/receiving unit for radiating an ultrasonic wave and receiving a reflective wave reflected from an object present in a monitoring space; a phase detection circuit for mixing reference signals with a reflective signal and obtaining a pair of Doppler signals each having an amplitude depending on a phase difference from the reference signal, each of the Doppler signals having a different phase from each other; a rotation angle calculation unit for calculating a rotation angle; a cumulative addition unit for accumulating the rotation angle; and a comparison unit for comparing the accumulated rotation angle with a threshold value. In the moving object detecting apparatus, a single ultrasonic vibrator is commonly used in the transmitting unit and the receiving unit. | ||||||
| 98 | Automatic flow-control device | US83474186 | 1986-02-28 | US4839039B2 | 1998-12-29 | PARSONS NATAN E; NOVAK JOEL S |
| 99 | Real-time superresolution signal processing | US689509 | 1996-08-06 | US5748507A | 1998-05-05 | Theagenis J. Abatzoglou; Lawrence K. Lam; Homayoun Malek; John T. Reagan |
| A signal processing system and method capable of real-time implementation for extracting signal parameter information with high accuracy and resolution. Signals (101) are passed through a filter bank (102), downconverted and decimated. The superresolution technique of constrained total least squares (CTLS) is used to process the resulting samples to obtain frequency components and their amplitudes (106). CTLS may also be used to obtain decaying coefficients associated with each frequency components. If desired, the results of CTLS may be used to extend original data for higher resolution spectral analysis and output (109). | ||||||
| 100 | Method of formation of channels for a sonar, in particular for a towed-array sonar | US582330 | 1990-09-14 | US5058081A | 1991-10-15 | Christian Gulli; Jean Le Gall; Georges Grall |
| In a method of formation of channels for a sonar, after having sampled at a frequency T=1/4f.sub.0 (where f.sub.0 is the receiving center frequency of the sonar) the signals from the hydrophones of the sonar and having translated them to baseband, the signals thus translated are subsampled with a period T.sub.SE =kT (wherein k is an integer) substantially equal to 1.25 B, where B is the reception bandwidth of the sonar. A first set of signals is subsampled at identical times to form a frontal sector. Two further sets of signals are subsampled with delays between the signals from two adjacent hydrophones equal to T, which determines two side sectors adjacent to the frontal sector. The subsampled signals are then transmitted serially by the towing cable of the sonar device towed array and are processed in FFT circuits which allow to form in each sector a set of channels covering the sector. This allows to considerably reduce the data transmission rate between the towed portion of the sonar and the portion located in the towing ship. | ||||||
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