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Methods and apparatus for reducing the velocity of a rider in or on an open cockpit vehicle when the rider is thrown from the vehicle.
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| Number | Title | Issue Date |
| 8154955 | Obstacle detection apparatus and method of controlling obstacle detection apparatus An obstacle detection apparatus includes an ultrasonic sensor and a control part. The ultrasonic sensor detects a presence of an obstacle around a vehicle and a distance to the obstacle by transmitting an ultrasonic wave and receiving the ultrasonic wave reflected b... | 04/10/2012 |
| 8125851 | Apparatus and method for controlling acoustic radiation pattern output through array of speakers Provided are an apparatus and method for controlling an acoustic radiation pattern output through an array of speakers. The apparatus stores a plurality of filter values for forming a plurality of corresponding control patterns set in advance from an input signal. T... | 02/28/2012 |
| 8085621 | Ultrasonic transducer with improved method of beam angle control An ultrasonic transducer utilizes an acoustic transmission line to increase the sensitivity of both the transmitting response and the receiving response. The resonant element of the transducer could employ a ceramic disc operating in the radial resonance mode for it... | 12/27/2011 |
| 8031558 | Forced acoustic dipole and forced acoustic multipole array using the same Provided is a forced acoustic dipole capable of regulating phases and acoustic pressures of first and second acoustic signals output from first and second pole speakers to freely steer the direction of an acoustic lobe. In addition, a forced acoustic multipole array... | 10/04/2011 |
| 8000170 | Systems and methods for acoustic beamforming using discrete or continuous speaker arrays In various embodiments, the invention pertains to systems for acoustic beamforming that include one or more speaker membranes, such as, for example, a continuous ribbon membrane, and several independently addressable drivers. Moreover, certain embodiments relate to ... | 08/16/2011 |
| 7898905 | Reconfigurable array with locally determined switch configuration A method for dynamically reconfiguring elements in an ultrasound transducer array is provided. The method includes defining two or more groups of the elements in the array, wherein each element individually comprises a first switch, and a second switch; providing bo... | 03/01/2011 |
| 7821872 | Method for ultrasonic wave transmission and apparatus for ultrasonic wave transmission A method for transmitting an ultrasonic wave is disclosed. The method includes: selecting a first combination of transmission elements from among multiple transmission elements, wherein the first combination of transmission elements includes at least two transmissio... | 10/26/2010 |
| 7800979 | Beamforming method and apparatus used in ultrasonic imaging system The present invention relates to a beamforming method used in an ultrasonic imaging system, the method comprises: receiving the reflected echo signal from the reception my by the transducer elements of the probe; transmit the received reflected echo signal by the tr... | 09/21/2010 |
| 7649809 | Method for optimizing the power supply for a towed linear transmit antenna for transmitting in omnidirectional mode A method for achieving omnidirectional transmission using of a towed linear antenna of length L greater than the wavelength λ of the signal transmitted. The antenna has a plurality of P projectors. The spacing between projectors is substantially less than λ/2. The... | 01/19/2010 |
| 7602672 | Quasi-self focusing high intensity and large power ultrasonic transducer A quasi-self focusing high strength large power ultrasonic transducer including a backing and a plurality of piezo-electric crystal sheets is disclosed. The backing has a double layer structure with an air cavity between the layers. At least four piezoelectric cryst... | 10/13/2009 |
| 7593289 | Reflectors and reflector light and sound source systems A reflector employs materials and design features that can transfer both light and sound emission simultaneously, from sources to planes or volumes, in an efficient and controlled manner. Compound orthogonal parabolic reflectors employ an extension onto conventional... | 09/22/2009 |
| 7406001 | Underwater acoustic beacon and method of operating same for navigation An underwater acoustic beacon comprises a cylindrical transducer and at least one spiral wavefront transducer aligned along a common central axis. For use in underwater navigation, the cylindrical and spiral wavefront transducers are activated singly and in combinat... | 07/29/2008 |
| 7382684 | Method for selective bandlimited data acquisition in subsurface formations The method for exploring desired characteristics of a subsurface sector, having at least one resonant frequency, is based on selectively transmitting suitable narrowband energy waves into the subsurface sector, thereby producing narrowband signals reflected off the ... | 06/03/2008 |
| 7372775 | Ultrasonic transmitter, ultrasonic transceiver and sounding apparatus A driver circuit for generating a driving pulse signal to activate a vibrating element includes a half-bridge circuit formed essentially of first and second switching devices to which drive signals are supplied through a driver interface. A driving voltage is suppli... | 05/13/2008 |
| 7372776 | Modal acoustic array transduction apparatus A transduction apparatus, which employs an array of individual transducers that generates multiple acoustic radiation modes, is described. These modes are used together to yield directional steered beam patterns. In one embodiment separate transducers, clustered in ... | 05/13/2008 |
| 7369115 | Haptic devices having multiple operational modes including at least one resonant mode An apparatus comprises a signal source, a driver and an electro-mechanical transducer. The signal source is configured to output a haptic feedback signal. The driver is configured to receive the haptic feedback signal and output a drive signal. The electro-mechanica... | 05/06/2008 |
| 7362420 | Entangled-photons range finding system and method A method of determining a distance to an object is presented. A first photon and a second photon are simultaneously generated. The first photon is reflected off an object. The second photon is directed to an optical cavity. An arrival of the first photon is correlat... | 04/22/2008 |
| 7354400 | Ultrasonographic method and ultrasonographic device An ultrasonographic method includes: a first encoding transmission/reception step for transmitting an ultrasonic beam encoded by an encoding set consisting of a plurality of modulation codes in which at least two are in complementary relationship and demodulating re... | 04/08/2008 |
| 7351204 | Ultrasonic diagnostic apparatus For the purpose of reducing the size and power consumption of a power source in an ultrasonic diagnostic apparatus, charge pump circuits are connected to a transmitter power source. A regulator in the transmitter power source drives the charge pump circuit to genera... | 04/01/2008 |
| 7349858 | Method of dispensing and tracking the giving of medical items to patients A method of tracking and dispensing the dispense of medical items for use by patients associated with a health care institution, includes storing in a data store in connection with a computer, data representative of patients and medical items prescribed for the pati... | 03/25/2008 |
| 7347820 | Phased array acoustic system for 3D imaging of moving parts The invention relates to an ultrasound phased array imaging system comprising: probe (10) with a 2-D array of transducer elements (12) for acquiring 3-D ultrasound data of a volume of a body, including moving tissue and fluid flow; a beamforming system... | 03/25/2008 |
| 7340391 | Apparatus and method for processing a multi-channel signal An apparatus for processing a multi-channel signal includes a means for determining a similarity between a first one of two channels and a second one of the two channels. Furthermore, a means for performing a prediction filtering of the spectral coefficients is prov... | 03/04/2008 |
| 7321735 | Optical down-converter using universal frequency translation technology A method and system for converting an optical signal to electrical information signals, including demodulated baseband information signals and modulated baseband signals at multiple harmonics. In an embodiment, the optical information signal is amplitude modulated w... | 01/22/2008 |
| 7319641 | Signal processing device for acoustic transducer array The invention provides transducer arrays which are capable of outputting sound beams having a relatively constant width, and with minimal sidelobes, across a range of frequencies. This is achieved by utilising one or more digital signal modifiers within the signal p... | 01/15/2008 |
| 7313242 | Hypersonic transducer This invention provides methods and apparatus for focusing a hypersonic beam to control both a direction and depth of audible formation delivery. Signals that are delivered to each of a plurality of hypersonic transducer elements are adjusted in phase so that transm... | 12/25/2007 |
| 7295826 | Integrated frequency translation and selectivity with gain control functionality, and applications thereof Methods and apparatuses for frequency selectivity and frequency translation, and applications for such methods and apparatuses, are described herein. The method includes steps of filtering an input signal, and down-converting the filtered input signal. The filtering... | 11/13/2007 |
| 7292835 | Wireless and wired cable modem applications of universal frequency translation technology Frequency translation and applications of same are described herein, including cable modem applications. Such applications include, but are not limited to, frequency down-conversion, frequency up-conversion, enhanced signal reception, unified down-conversion and fil... | 11/06/2007 |
| 7292502 | Systems and methods for producing a sound pressure field The invention provides, in various embodiments, a transducer for generating hyper-directional sound beams, and a system and method employing a hyper-directional sound transducer for producing pressure gradients and forces across stationary and moving objects. ... | 11/06/2007 |
| 7289390 | Ultrasonic transmitting/receiving apparatus and scanning sonar employing same An ultrasonic apparatus is disclosed that includes a transducer having a plurality of transducer elements, a controller operatively connected to the transducer and driving the transducer elements to produce a first ultrasonic transmitting beam having a first frequen... | 10/30/2007 |
| 7274732 | Echo cancellation in communication systems with asymmetric data rates A communication device (e.g., a modem) is disclosed as including logic that processes a transmit signal before providing a signal to an echo canceler. The processing may include low pass filtering and decimation of the transmit signal. The low pass filter's cut-off ... | 09/25/2007 |
| 7264597 | Device and method for producing high-pressure ultrasonic pulses A device for producing high pressure ultrasound pulses. The device includes an ultrasound source having a piezoelectric transducer provided with electrodes and presenting polarization in a given direction (f1). An electrical voltage is applied to the elec... | 09/04/2007 |
| 7257167 | System and method for multi-access MIMO channels with feedback capacity constraint Systems and methods of MIMO wireless communication system with partial feedback are disclosed. In one embodiment, a base station estimates the channel matrices of the K mobile units and transmits an index value corresponding to each of the estimated channel matrix. ... | 08/14/2007 |
| 7254092 | Method and system for swimmer denial A method and system for swimmer denial transmits underwater sound associated with a time-reversed impulsive response, resulting in amplified sound at a predetermined location. The amplified sound has sufficient peak pressure and/or impulse area to form a barrier to ... | 08/07/2007 |
| 7245557 | Sonar A sonar emits an ultrasonic wave into the water from a transducer on the basis of a transmission signal outputted from a transmission circuit, receives an echo reflected in the water with the transducer and converts the echo into an electric signal, and displays und... | 07/17/2007 |
| 7239907 | Diagnostic apparatus, ultrasonic diagnostic apparatus, and operation controlling method thereof By using the input unit, a condition previously regarded necessary, for example, some parameter values of a plurality of frequencies are registered as a group. The registered parameter values are stored in a memory within the apparatus setting condition controlling ... | 07/03/2007 |
| 7238157 | Broad-beam imaging methods Methods of probing a material under investigation using an ultrasound beam. Echolocation data is generated using a multi-dimensional transform capable of using phase and magnitude information to distinguish echoes resulting from ultrasound beam components produced u... | 07/03/2007 |
| 7233364 | Apparatus and method for generating coefficient data, apparatus and method for processing information signal using the same, apparatus and method for obtaining coefficient data used therefor, and information providing medium A class code of a subject pixel of an HD signal is obtained from pixel data of a class tap extracted from an SD signal. In a memory bank, coefficient data for a generating equation, including parameters for adjusting image quality, for generating elements of a summa... | 06/19/2007 |
| 7215599 | Ultrasonic transmitter, ultrasonic transceiver and sonar apparatus An ultrasonic transmitter generates a reference signal based on a clock signal of a specific frequency and a control signal made up of binary values 0 and 1 for controlling how the level (High or Low) of a carrier drive signal should change, and generates an analog ... | 05/08/2007 |
| 7215598 | Imaging sonar and detection system using such a sonar The disclosure relates to an imaging sonar for detection of objects buried in a reflecting medium, comprising a “vertical” transmit antenna and a horizontal receive antenna forming a “Mills Cross”, said transmission means enabling a vertical radiation angle ... | 05/08/2007 |
| 7212467 | Sonar localization Described herein is sonar localization apparatus which comprises a plurality of acoustic transducers (6) arranged to define at least two end fire arrays (2, 4) each of which produces a sonar beam (10, 12) suitable for the detection of objects in... | 05/01/2007 |
