Siemens Medical Systems, Inc.

General Electric Company

Cellular Technical Services Company, Inc.

Scott D Otterson

Larry Y L Mo

Zoran B Banjanin

Jin H Kim

Dmitry Kaplan

Robert N Phelps

King-Yuen Wong

Jeffrey T Reeve

Ja-il Koo

A method of calibrating Doppler time-velocity waveforms obtained using a duplex ultrasound scanner. A spectral broadening error margin for the maximum velocity waveform is determined based on a unified theory of intrinsic spectral broadening for pulsed Doppler signals. The error margin is colorized or highlighted in the Doppler waveform display.

Method and apparatus for estimation and display of spectral broadening error margin for doppler time-velocity waveforms

A system and method for combining the results of different analysis portions to produce a single YES/NO decision regarding the validity of a present cellular telephone call. A soft data analysis portion of the system analyzes soft data, such as the results of a signature analyzer and a customer call profile and determines the likelihood that the particular call is a valid call from an authorized cellular telephone or an invalid call from a fraudulent cellular telephone. In addition, the system performs a deterministic analysis of the particular phone call to independently designate the particular phone call as valid or invalid. The outputs from the deterministic analyzer and the soft data analyzer portion are combined in a combinatorial logic circuit to produce a single binary output having one logic level for valid calls from the authorized cellular telephone and the opposite logic level for invalid calls from the fraudulent cellular telephone. In addition, the deterministic analyzer may include a control line to override the decision of the soft analyzer to permit calls to designated numbers, such as emergency numbers, even if the independent analysis indicates that the particular call is invalid. In one embodiment, the soft data analyzer portion is a fuzzy logic classifier receiving data inputs and confidence values from the various soft data portions of the system. The fuzzy logic classifier combines the various soft data inputs to produce a single binary output. A sensitivity input is used to vary the threshold of the binary output. The binary output of the fuzzy logic analyzer is combined with the outputs of the deterministic analyzer by the combinatorial logic circuit.

System and method for detection of fraud in a wireless telephone system

An ultrasound system produces composite color flow images of tissue samples. To reduce image flicker, the ultrasound system stores the data required to produce two sequential color flow images and computes a series of interpolated images that are displayed between the actual color flow images. A piece-wise interpolation function is used to create the interpolated images in order to prevent artificial smoothing of the image data. In addition, the ultrasound system quantizes the ultrasound data used to compute the interpolated images in order to reduce the amount of memory required to store the data for the sequential color flow images.

Method and apparatus for performing frame interpolation in an ultrasound

A Doppler audio dealiasing system has a zero inserter that inserts zeros between input samples of signal. The resultant signal is then processed in various ways. After the zeros are inserted and a new signal is formed, the newly formed signal is filtered with or without a modulator and otherwise processed to remove inappropriate parts to generate forward and reverse audio signals corresponding to the adjuster.

Method and system for doppler ultrasound audio dealiasing

A Doppler audio dealiasing system has a zero inserter that inserts zeros between input samples of signal. The resultant signal is then processed in various ways. After the zeros are inserted and a new signal is formed, the newly formed signal is filtered and otherwise processed to remove inappropriate parts.

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Seattle, WA, United States of America

Scott D Otterson