Did You Know...
...that several people are credited with the invention of the flush toilet? Most people have heard of Thomas Crapper (1837-1910), the sanitary engineer who invented the valve-and-siphon arrangement that made the modern toilet possible. Another claimant to "the throne" was British inventor Alexander Cumming who patented a toilet in 1775. Then there's a nameless Minoan (a native of ancient Crete) who lived 4,000 years ago who supposedly was ahead of his time and created the first flush toilet!
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| Number | Title | Issue Date |
| 8147412 | Ultrasound doppler dealiasing without zero insertion The present application provides a method for generating dealiased Doppler signals in a spectral Doppler system. The method comprises the steps of: filtering each of two quadrature components of obtained quadrature Doppler signals by using at least four filters in a... | 04/03/2012 |
| 8142361 | Method and apparatus for automatic optimization of doppler imaging parameters A method and apparatus are disclosed for automatic optimization of Doppler imaging parameters. The method includes obtaining and storing at least two characteristic spectral lines at a predetermined pulse repetition frequency. The method further includes optimizing ... | 03/27/2012 |
| 7946992 | Velocity measuring method and velocity measuring device using the same The present invention is to provide a velocity measuring method and a velocity measuring device for carrying out the method. The velocity measuring method includes: a step (S4) for expanding N time series signals by using 0-th to (N−1)-th degree discrete Le... | 05/24/2011 |
| 7946991 | Ultrasonic doppler blood flow measuring device A technology for performing the filter processing of blood flow velocity data having aliasing by only common filter processing means and common addition and subtraction means and actualizing image display of smooth blood flow velocity is disclosed. According to this... | 05/24/2011 |
| 7942821 | Doppler velocity detection device and ultrasonographic device using the same The present invention realizes a Doppler velocity detecting technique capable of performing velocity detection and analysis with a suppressed error while excellently distinguishing a clutter signal, and provides an ultrasonographic device using the technique. In a D... | 05/17/2011 |
| 7887487 | Ultrasound diagnostic flow imaging with coded excitation Diagnostic ultrasound flow imaging is performed with coded excitation pulses. Due to the use of frequency coded excitation pulses, flow information may suffer from spatial misregistration and estimate errors. Spatial position shift in flow data is offset for alignme... | 02/15/2011 |
| 7798968 | Automatic detection system and method of spectral Doppler blood flow velocity A method and system for detecting spectral Doppler blood flow velocity are disclosed. The method comprises the steps of: obtaining Doppler signals of the flow by demodulating, filtering, and analog-to-digital converting RF ultrasonic echoes; analyzing the spectrum o... | 09/21/2010 |
| 7749166 | System and method for filtering in imaging systems Systems and methods for signal filtering are provided. A signal filter includes a linear regression filter component and a finite impulse response filter component. A received signal is first filtered by the linear regression filter component and then filtered by th... | 07/06/2010 |
| 7744538 | Minimum arc velocity interpolation for three-dimensional ultrasound imaging Minimum arc interpolation is performed on velocity information distributed in three dimensions. By using complex representations of the velocity information, the interpolation may more accurately represent the angle or velocity for spatial conversion. Tri-linearly i... | 06/29/2010 |
| 7513872 | Ultrasonic doppler measuring apparatus and control method therefor A Doppler sensitivity measuring unit measures the Doppler sensitivity of Doppler spectrum data obtained by ultrasonic wave transmission/reception with respect to a predetermined region of an object to be examined. A spectrum shape model generating unit generates a s... | 04/07/2009 |
| 7371219 | Ultrasound diagnosis apparatus operable in doppler mode An ultrasound diagnosis apparatus includes a probe, a controller, a processor, and an output unit. The probe is configured to perform an interleaving scan in Doppler groups of ultrasound beam directions so as to acquire first and second Doppler-mode image frames. Th... | 05/13/2008 |
| 7364549 | Pulse wave measuring apparatus A pulse wave measuring apparatus is disclosed which is capable of measuring the pulse wave accurately in stable fashion and which can be reduced in size and integrated for an improved convenience. The pulse wave measuring apparatus comprises a sensor unit having a p... | 04/29/2008 |
| 7359521 | Aliasing cancellation in audio effects algorithms A method for effecting aliasing cancellation in an audio effects algorithm using a delay modulated signal, derived from interpolation of a delay modulator at an instantaneous sampling frequency, including: determining the instantaneous sampling frequency 1/Tisf... | 04/15/2008 |
| 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 |
| 7338451 | Ultrasonic scatterer, ultrasonic imaging method and ultrasonic imaging apparatus The ultrasonic scatterer of the invention comprises gas-containing particles having an average particle size of 0.01 μm to 10 μm, the ultrasonic imaging method of the invention comprises transmitting an ultrasonic wave continuing for ten cycles or more; transmitti... | 03/04/2008 |
| 7338450 | Method and apparatus for performing CW doppler ultrasound utilizing a 2D matrix array An ultrasound system is provided comprising an ultrasound probe having a 2D matrix of transducer elements transmitting a continuous wave (CW) Doppler transmit signal into an object of interest. The CW transmit signal includes a dither signal component and the probe ... | 03/04/2008 |
| 7333185 | Optical velocimeter, displacement information measurement device and conveying and processing device There is provided an optical velocimeter for achieving miniaturization and lower power consumption thereof and for accurately detecting two-dimensional travel velocity of a measured object. This optical velocimeter includes a light-emitting element, a diffraction gr... | 02/19/2008 |
| 7329265 | Uterine artery occlusion clamp The invention is directed to a uterine artery clamp and the relatively non-invasive treatment procedure utilizing this clamp. The uterine clamp includes a clamping member having a jaw with tissue-contacting surfaces for applying pressure to target tissue and a stabi... | 02/12/2008 |
| 7319639 | Acoustic concealed item detector The present invention is directed towards an acoustic concealed item detector and related methods for detection using acoustics. In an illustrative embodiment, a multi-frequency ultrasonic wave generator generates in a gaseous medium at least first and second ultras... | 01/15/2008 |
| 7316650 | Method and system for supporting an imaging transceiver A system and method for supporting an ultrasound transducer or other medical device from a position above a patient support surface using an arched overhead boom and a tool balancer or multi-directional articulating extendable mount. ... | 01/08/2008 |
| 7302850 | Ultrasonic diagnostic apparatus and image processing apparatus An ultrasonic diagnostic apparatus that performs high acoustic pressure and low acoustic pressure ultrasonic transmissions by switching at predetermined timing in the enhanced ultrasonography, and displays concurrently a replenishment image obtained through the low ... | 12/04/2007 |
| 7295148 | Radar system with RCS correction There is provided a radar system having an input amplitude correcting function in which even when a large reflection wave exceeding a dynamic range of an A/D converter is inputted, an RCS calculation without a time lag can be executed at high precision, high reliabi... | 11/13/2007 |
| 7288068 | Automatic optimization for ultrasound medical imaging Methods and systems are provided for automatic optimization for ultrasound medical imaging. In one approach, velocity values are unwrapped to avoid aliasing artifacts. Multi-dimensional phase unwrapping is applied to the velocity data. The unwrapped velocity informa... | 10/30/2007 |
| 7283461 | Detection of denial-of-service attacks using frequency domain analysis Methods and apparatus for detecting denial of service attacks on a system in a communications network are provided. A frequency analysis is performed on certain types of packets that arrive with a periodic nature. A frequency power spectrum obtained through Fourier ... | 10/16/2007 |
| 7270646 | Ultrasonic operation apparatus for performing follow-up control of resonance frequency drive of ultrasonic oscillator by digital PLL system using DDS (direct digital synthesizer) An ultrasonic driving apparatus consists mainly of a digital oscillatory circuit, an amplifier, a detection circuit, a phase difference detection circuit, a register, a data transfer circuit, and a switching circuit. The digital oscillatory circuit is used to drive ... | 09/18/2007 |
| 7267650 | Ultrasound directed guiding catheter system and method A guiding catheter system employs a flexible shaft having a preformed bend at a distal end. An ultrasound transducer is mounted proximal to the pre-formed bend. The ultrasound transducer has a field of view directed to a distal tip of the guiding catheter. The guidi... | 09/11/2007 |
| 7261695 | Trigger extraction from ultrasound doppler signals A trigger extraction system for obtaining an event trigger for an event occurring in a region of interest includes a processor, a memory coupled to the processor, and a trigger extraction program stored in the memory for execution by the processor. The trigger extra... | 08/28/2007 |
| 7261693 | Soft tissue diagnostic apparatus and method A soft tissue diagnostic apparatus for diagnosis of stress and injury in anatomical soft tissue by detecting the response of the soft tissue to acoustic energy and a method of detecting soft tissue damage or stress and treating the tissue. An acoustic transmitter tr... | 08/28/2007 |
| 7257270 | Image processing device and method, and recording medium In an image processing device which carries out processing for detecting and correcting defective portions of an image, it is possible to pre-emptively prevent the defective portion detecting and correcting processing from causing a deterioration in image quality or... | 08/14/2007 |
| 7236616 | Biometric piezo scanner A piezoelectric thin film sensor array is used to scan and capture biometric data, for example, a fingerprint image. In one embodiment, a multi-layer structure includes a PVDF layer in between two conductor grids arranged orthogonally to one another. Urethane can be... | 06/26/2007 |
| 7229465 | Method and apparatus for the detection and ligation of uterine arteries The invention provides devices, systems and methods for occluding arteries without puncturing skin or vessel walls. The devices, systems and methods for occluding arteries are configured to be applied to arteries externally of the arteries. Occlusion may be temporar... | 06/12/2007 |
| 7223240 | Ultrasonic diagnostic apparatus In an ultrasonic diagnostic apparatus capable of forming a three-dimensional ultrasonic image, an entire cavity portion of an organ can be displayed without any part being invisible. Three-dimensional ultrasonic image data obtained based on an ultrasonic wave transm... | 05/29/2007 |
| 7198601 | Ultrasonic contrast medium imaging apparatus and method An ultrasonic enhanced-contrast imager includes an ultrasonic probe for transmitting an ultrasonic wave to an organism and receiving an ultrasonic wave from the organism, a transmitting section for transmitting an ultrasonic signal to the ultrasonic probe, a receivi... | 04/03/2007 |
| 7192400 | Device and method for vascular monitoring A vascular coupler adapted to be fixed into position upon a blood vessel and there retain and position a matable sensing device. In a preferred embodiment, the vascular coupler is an anastomotic coupler and the sensing device comprises an ultrasonic Doppler probe. | 03/20/2007 |
| 7174203 | Method and system relating to monitoring and characterizing heart condition A method and a system for monitoring and characterizing a person's heart condition for various medically related purposes. The method includes the steps of (a) acquiring a selected person's acoustic heart signature, (b) acquiring, substantially simultaneously, that ... | 02/06/2007 |
| 7166076 | Vascular testing system A vascular testing system includes a pressure applicator, a pressure source for generating fluid pressure at the pressure applicator; a variable orifice valve, and a valve control. The variable orifice valve is in fluid communication with the pressure applicator, an... | 01/23/2007 |
| 7153268 | Motion adaptive frame averaging for ultrasound doppler color flow imaging The present invention relates to a method and apparatus for performing motion adaptive frame averaging for ultrasound color flow images used to overcome lag and smearing alias of color due to motion. One embodiment of the present invention comprises an ultrasound ma... | 12/26/2006 |
| 7147602 | Blood rheology measuring apparatus A blood rheology measuring apparatus has a measuring portion for measuring blood circulation information inside of a living body from outside of the living body. The blood circulation information is a maximum blood flow velocity for one pulse. An information process... | 12/12/2006 |
| 7131947 | Volumetric ultrasonic image segment acquisition with ECG display A three dimensional ultrasonic imaging system acquires volume segments of a wide field of view volume image in coincidence with an ECG waveform. The ECG waveforms acquired during acquisition of the volume segments are displayed in a comparative display in which a di... | 11/07/2006 |
| 7128713 | Doppler ultrasound method and apparatus for monitoring blood flow and hemodynamics A pulse Doppler ultrasound system and associated methods are described for monitoring blood flow and hemodynamics. The Doppler ultrasound system includes an ultrasound probe to emit ultrasound signals and detect reflected signals therefrom and further includes a pro... | 10/31/2006 |
