University of California

Pai Chou

Donald Patterson

Daniel M Cooper

Bruce J Tromberg

Albert E Cerussi

Eunbae Yoon

Dana Gravem

Keun-sik No

Dana McQueen

Brian Hill

A diffuse optical spectroscopic imaging (DOSI) apparatus for tissue spectroscopy measures absorption and scattering properties of tissue using multi-frequency frequency domain photon migration in a modular or networkable platform to provide full broadband information content. The apparatus includes: a broadband signal generator; a driver having an input coupled to the signal generator; a light source coupled to the driver, the light source for exposing the tissue to broadband modulated light at a plurality of wavelengths; an optical detector for receiving returned light from the tissue; an amplitude detection circuit communicated to the optical detector; a phase detection circuit communicated to the optical detector; and a plurality of filters and amplifiers, wherein the optical detector, amplitude detection circuit and phase detection circuit are interconnected with each other by corresponding ones of the plurality of filters and amplifiers to isolate signals and increase signal-to-noise ratio.

Portable broadband diffuse optical spectroscopic imaging (DOSI) device for noninvasive tissue characterization

A new serial bus interface module that enables constrained sensor systems to better match flash-based storage devices' (SD card) read and write performance. The serial bus interface module augments existing flash-based storage with non-volatile random-access memory to form a hybrid storage system using the most popularly used master-slave bus architecture. Together with PSC-like features, the serial bus interface module not only enables slave-to-slave transfer (therefore eliminating the double-transaction problem) but also reads caching (one source to multi-sink) and buffering while flushing. These transaction types enable multi-sector write for significantly faster speed and lower energy overhead, while the use of non-volatile memory for metadata caching means low risk of file-system corruption in the event of power failure. The serial bus interface also enables the direct data transfer from sensors to storage or communication modules without requiring the microprocessor's intervention.

Serial bus interface to enable high-performance and energy-efficient data logging

A system and method for measuring the movement of one or more limbs of an infant using a video system for the purpose of determining whether the infant suffers from or is at risk of suffering from a medical condition such as cerebral palsy.

System for evaluating infant movement using gesture recognition

A system and method for measuring movements, utilizing one or more wireless accelerometers attached to one or more limbs of a human subject for the purpose of determining certain temporal and spatial gestures of the subject.

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Irvine, CA, United States of America

Pai Chou