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Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Inventor:
Chiang; Alice M.
Address:
Weston, MA
No. of patents:
38
Patents:












Patent Number Title Of Patent Date Issued
8241217 Portable ultrasound imaging data August 14, 2012
A portable ultrasound imaging system includes a scan head coupled by a cable to a portable battery-powered data processor and display unit. The scan head enclosure houses an array of ultrasonic transducers and the circuitry associated therewith, including pulse synchronizer circuitry
7874991 Ultrasound 3D imaging system January 25, 2011
The present invention relates to an ultrasound imaging system in which the scan head either includes a beamformer circuit that performs far field subarray beamforming or includes a sparse array selecting circuit that actuates selected elements. When used with second stage beamforming
7500952 Portable ultrasound imaging system March 10, 2009
A portable ultrasound imaging system includes a scan head coupled by a cable to a portable battery-powered data processor and display unit. The scan head enclosure houses an array of ultrasonic transducers and the circuitry associated therewith, including pulse synchronizer circuitry
7223242 Ultrasound imaging system May 29, 2007
The present invention is directed to an ultrasound imaging system and method for Doppler processing of data. The ultrasonic imaging system efficiently addresses the data computational and processing needs of Doppler processing. Software executable sequences in accordance with a prefe
6969352 Ultrasound probe with integrated electronics November 29, 2005
A hand-held ultrasound system includes integrated electronics within an ergonomic housing. The electronics includes control circuitry, beamforming and circuitry transducer drive circuitry. The electronics communicate with a host computer using an industry standard high speed serial bus.
6869401 Ultrasound probe with integrated electronics March 22, 2005
A hand-held ultrasound system includes integrated electronics within an ergonomic housing. The electronics includes control circuitry, beamforming and circuitry transducer drive circuitry. The electronics communicate with a host computer using an industry standard high speed serial bus.
6842401 Sonar beamforming system January 11, 2005
The present invention relates to sonar beamforming systems and methods, using a forward-looking sonar having transmit and receive transducer arrays with a beamforming device and at least one side-looking sonar having dynamically range-focused beams. The forward-looking sonar provides
6783493 Ultrasound probe with integrated electronics August 31, 2004
A hand-held ultrasound system includes integrated electronics within an ergonomic housing. The electronics includes control circuitry, beamforming and circuitry transducer drive circuitry. The electronics communicate with a host computer using an industry standard high speed serial bus.
6721235 Steerable beamforming system April 13, 2004
The present invention relates to a multiple beamforming processor formed with an integrated circuit in which a plurality of beams can be formed simultaneously.
6671227 Multidimensional beamforming device December 30, 2003
A multidimensional beamforming device that performs consecutive one-dimensional operations. For example, beamsteering for a two-dimensional array can be include a projection of a beam onto each of the respective axes of the array. In such a device, a first beamforming processing elem
6669633 Unitary operator control for ultrasonic imaging graphical user interface December 30, 2003
Conventional ultrasound imaging systems typically include a hand-held probe coupled to a processing and display unit. Typical controls in an ultrasound imaging system require that the operator continually focus on the controls, rather than the ultrasonic image of the area of interest,
6638226 Ultrasound imaging system October 28, 2003
The present invention is directed to an ultrasound imaging system and method for Doppler processing of data. The ultrasonic imaging system efficiently addresses the data computational and processing needs of Doppler processing. Software executable sequences in accordance with a prefe
6593880 Communication system using geographic position data July 15, 2003
A wireless communication system employs directive antenna arrays and knowledge of position of users to form narrow antenna beams to and from desired users and away from undesired users to reduce co-channel interference. By reducing co-channel interference coming from different direct
6552964 Steerable beamforming system April 22, 2003
The need for multiple, cost-effective deployment of an underwater camera has resulted in the development of a low-power high-resolution imaging system using a sparse array. The system can be used for undersea acoustic mine-field reconnaissance and mine-hunting systems for example, this
6530887 Ultrasound probe with integrated electronics March 11, 2003
A hand-held ultrasound probe system includes integrated electronics within an ergonomic housing. The electronics includes control circuitry, beamforming and circuitry transducer drive circuitry. The probe electronics communicates with a host computer using an industry standard high s
6379304 Ultrasound scan conversion with spatial dithering April 30, 2002
An ultrasound imaging system includes a scan conversion process for converting ultrasound data into a standard display format conversion and can be performed on a personal computer by programming the computer to convert data from polar coordinates to cartesian coordinates suitable for
6292433 Multi-dimensional beamforming device September 18, 2001
A multi-dimensional beamforming device that performs consecutive one-dimensional operations. For example, beamsteering for a two-dimensional array can be include a projection of a beam onto each of the respective axes of the array. In such a device, a first beamforming processing ele
6248073 Ultrasound scan conversion with spatial dithering June 19, 2001
An ultrasound imaging system includes a scan conversion process for converting ultrasound data into a standard display format conversion and can be performed on a personal computer by programming the computer to convert data from polar coordinates to cartesian coordinates suitable for
6111816 Multi-dimensional beamforming device August 29, 2000
A multi-dimensional beamforming device that performs consecutive one-dimensional operations. For example, beamsteering for a two-dimensional array can be include a projection of a beam onto each of the respective axes of the array. In such a device, a first beamforming processing ele
6106472 Portable ultrasound imaging system August 22, 2000
A portable ultrasound imaging system includes a scan head coupled by a cable to a portable battery-powered data processor and display unit. The scan head enclosure houses an array of ultrasonic transducers and the circuitry associated therewith, including pulse synchronizer circuitry
5964709 Portable ultrasound imaging system October 12, 1999
A portable ultrasound imaging system (10) includes a scan head (12) coupled by a cable (16) to a portable battery-powered data processor (14) and display unit. The scan head enclosure (12) houses an array of ultrasonic transducers and the circuitry associated therewith, including pulse
5957846 Portable ultrasound imaging system September 28, 1999
A portable ultrasound imaging system includes a scan head coupled by a cable to a portable battery-powered data processor and display unit. The scan head enclosure houses an array of ultrasonic transducers and the circuitry associated therewith, including pulse synchronizer circuitry
5904652 Ultrasound scan conversion with spatial dithering May 18, 1999
An ultrasound imaging system includes a scan conversion process for converting ultrasound data into a standard display format conversion and can be performed on a personal computer by programming the computer to convert data from polar coordinates to Cartesian coordinates suitable for
5839442 Portable ultrasound imaging system November 24, 1998
A portable ultrasound imaging system includes a hand-held scan head coupled by a cable to a portable battery-powered data processor and display unit, preferably in the form of a lap-top computer. The scan head enclosure houses an array of ultrasonic transducers and the circuitry associat
5763785 Integrated beam forming and focusing processing circuit for use in an ultrasound imaging system June 9, 1998
A beam forming and focusing processing circuit for use in an ultrasound imaging system. The system incorporates a plurality of the processing circuits which differentially delay imaging signals in order to generate an output in which the imaging signals from each circuit implement the
5690114 Portable ultrasound imaging system November 25, 1997
A portable ultrasound imaging system includes a hand-held scan head coupled by a cable to a portable battery-powered data processor and display unit, preferably in the form of a lap-top computer. The scan head enclosure houses an array of ultrasonic transducers and the circuitry associat
5590658 Portable ultrasound imaging system January 7, 1997
A portable ultrasound imaging system includes a handheld scan head coupled by a cable to a portable battery-powered data processor and display unit, preferably in the form of a lap-top computer. The scan head enclosure houses an array of ultrasonic transducers and the circuitry associate
5555200 Charge domain bit-serial multiplying digital-analog converter September 10, 1996
A single chip adaptive filtering system including an FIR filter and circuitry for calculating updated weighting coefficients for use in associated multiplying digital-to-analog converters. The adaptive FIR filter performs the convolution of a delayed and sampled input sequence to pro
5535150 Single chip adaptive filter utilizing updatable weighting techniques July 9, 1996
A single chip adaptive filtering system including an finite impulse response (FIR) filter and circuitry for calculating updated weighting coefficients for use in associated multiplying digital-to-analog converters. The adaptive FIR filter performs the convolution of a delayed and sam
5126962 Discrete cosine transform processing system June 30, 1992
A three dimensional (3D) discrete cosine transform (DCT) uses one dimensional DCT networks for transforming and inverse-transforming blocks of data, such as image data. The 3D DCT configuration uses DCT transform coding to remove both the spatial and temporal redundancy of a sequence of
5089983 Charge domain vector-matrix product processing system February 18, 1992
A charge domain vector-matrix product processing system. The system includes a charge coupled device tapped delay line, an array of digital parallel shift register memory devices, and a signal processor. A sampled analog signal is stored within the tapped delay line, and multiple vectors
5030953 Charge domain block matching processor July 9, 1991
A full search block matching algorithm includes a charge-domain serial tapped delay line as an input buffer, and an array of charge domain signal processors. The delay line shifts and holds analog sampled data which are in the form of charge packets. At each stage of delay, the signals a
4464726 Charge domain parallel processing network August 7, 1984
A charge domain parallel processing network. The network includes a floating gate CCD tapped delay line and an array of CCD signal processors each including a charge domain digital-analog multiplier. The delay line holds and shifts analog sampled data in the form of charge packets. At
4458324 Charge domain multiplying device July 3, 1984
A charge domain digital-analog multiplier device. The device has one analog input, M-parallel digital inputs, and one analog output. An M-bit digital word signal is applied to the digital inputs and an analog signal is applied to the analog input. The output is a charge packet which is
4364077 P.sup.+ N Gallium phosphide photodiodes December 14, 1982
A photodiode detector apparatus having a Gallium Phosphide ion implantation junction thereon to provide high quantum efficiency at wavelengths equal to or less than 0.5 micron incident wavelength while utilizing a shallow junction.
4147562 Pyroelectric detector April 3, 1979
A pyroelectric detector as formed by parylene C polymer film.
4141756 Method of making a gap UV photodiode by multiple ion-implantations February 27, 1979
An ultraviolet sensitive photodiode is formed in a body of first conductivity type GaP. A region of second conductivity type with a graded impurity distribution is formed in the body, and a thin layer (preferably about 100A to 300A) is then removed from the front surface of the body.
4128843 GaP Directed field UV photodiode December 5, 1978
A GaP photodiode having a shallow PN junction and an internal directed surface electric field exhibits high quantum efficiency in detecting ultraviolet wavelengths.










 
 
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