Circuit Seed, LLC

Innurvation Inc.

Nanopower Technologies, Inc.

American Hospital Supply Corporation

Other

University of Southern California

Manopower Technologies, Inc.

Robert Charles Schober

William Robert Bandy

Michael R Arneson

Anders Grunnet-Jepsen

Susan Marya Schober

Kevin James Powell

Kenneth Edward Salsman

Brian Jamieson

Herbert M Shapiro

John Weitzner

Yuri Okunev

Roger Allen Davenport

Son Truong Ngo

J Daniel Likins

Susan M Schober

Brian Glenn Jamieson

The present invention relates to a novel and inventive compound device structure, enabling a charge-based approach that takes advantage of sub-threshold operation, for designing analog CMOS circuits. In particular, the present invention relates to a solid state device based on a complementary pair of n-type and p-type current field-effect transistors, each of which has two control ports, namely a low impedance port and gate control port, while a conventional solid state device has one control port, namely gate control port. This novel solid state device provides various improvement over the conventional devices.

Complementary current field-effect transistor devices and amplifiers

Existing proportional to absolute temperature (PTAT)/complementary-to-absolute-temperature (CTAT) reference voltage circuit requires a large components count and foot print, precise device matching for accuracy and unsatisfactory sensitivity error or variation to temperature and humidity. The present invention relates to a novel approach for such reference voltage circuit based on a self-biased complementary pair of n-type and p-type current field-effect transistors, which provides rail PTAT, rail CTAT and analog reference voltages.

Reference generator and current source transistor based on complementary current field-effect transistor devices

The present invention relates to a multi-stage and feed forward compensated complimentary current field effect transistor amplifiers, enabling a charge-based approach that takes advantage of the exponential properties incurred in sub-threshold operation. A plurality of complimentary pairs of novel current field effect transistors are connected in series to form a multi-stage amplifier.

Multi-stage and feed forward compensated complementary current field effect transistor amplifiers

The present invention relates to a novel and inventive compound device structure for a low noise current amplifier or trans-impedance amplifier. The trans-impedance amplifier includes an amplifier portion, which converts current input into voltage using a complimentary pair of novel n-type and p-type current field-effect transistors (NiFET and PiFET) and a bias generation portion using another complimentary pair of NiFET and PiFET. Trans-impedance of NiFET and PiFET and its gain may be configured and programmed by a ratio of width (W) over length (L) of source channel over the width (W) over length (L) of drain channel (W/L of source channel/W/L of drain channel).

Low noise trans-impedance amplifiers based on complementary current field-effect transistor devices

The present invention relates to an improvement to a current field effect transistor and trans-impedance MOS devices based on a novel and inventive compound device structure, enabling a charge-based approach that takes advantage of sub-threshold operation, for designing analog CMOS circuits. The present invention further relates to a super-saturation current field effect transistor (xiFET), having a source, a drain, a diffusion, a first gate, and a second gate terminals, in which a source channel is defined between the source and diffusion terminals, a drain channel is defined between the drain and diffusion terminals. The first gate terminal is capacitively coupled to the source channel; and the second gate terminal is capacitively coupled to said drain channel. The diffusion terminal receives a current causing change in diffused charge density throughout said source and drain channel. The xiFET provides a fundamental building block for designing various analog circuites.

Super-saturation current field effect transistor and trans-impedance MOS device

A novel phase locked loop design utilizing novel phase-frequency detector, charge pump, loop filter and voltage controlled oscillator is disclosed. The phase-frequency detector includes a dual reset D-flip flop for use in multi-GHz phase locked loops. Traditional dead zone issues associated with phase frequency detector are improved/addressed by use with a charge transfer-based PLL charge pump.

Phase frequency detector and accurate low jitter high frequency wide-band phase lock loop

The present invention relates to passive phased injection locked circuit and ring-based voltage controlled oscillators. A passive phased injection locked circuit comprises first and second transmission lines, each has a plurality of discrete elements, that are operative to delay the phase of AC signal. Between the first and second transmission lines, a capacitor network is formed to advance the phases of the AC signal in concert along the transmission lines. For the ring-based voltage controlled oscillators, each of the first and second transmission lines has an odd number of discrete elements.

Passive phased injection locked circuit

The present invention relates to an improvement to a current field effect transistor and trans-impedance MOS devices based on a novel and inventive compound device structure, enabling a charge-based approach that takes advantage of sub-threshold operation, for designing analog CMOS circuits. The present invention further relates to a super-saturation current field effect transistor (xiFET), having a source, a drain, a diffusion, a first gate, and a second gate terminals, in which a source channel is defined between the source and diffusion terminals, a drain channel is defined between the drain and diffusion terminals. The first gate terminal is capacitively coupled to the source channel; and the second gate terminal is capacitively coupled to said drain channel. The diffusion terminal receives a current causing change in diffused charge density throughout said source and drain channel. The xiFET provides a fundamental building block for designing various analog circuits.

An ingestible scanning device includes, in an embodiment, a capsule housing having a transparent window and sized so as to be ingestible, a photo-sensing array located within the capsule housing, a mirror located within the housing and oriented to direct an image from a surface outside the transparent window to the photo-sensing array, and a light source for illuminating the surface outside the transparent window.

Ingestible endoscopic optical scanning device

An innovative analog circuit design using digital components is disclosed. Embodiments of the present invention includes, but not limited to analog amplifiers and comparators. An amplifier of an embodiment of the present invention includes an inverter, a plurality of switches, offset capacitor and flying capacitor. The one terminal of the offset capacitor is connected to the input of the inverter. During setup phase of clock signals, the switches are configured to connect input and output of the inverter and to connect the flying capacitor to input terminals of the amplifier, respectively, for storing a differential input voltage. Then, during the enable phase of the clock signals, the switches are configured to connect the first terminal of the second capacitor and the first terminal of the first capacitor, and to connect the second terminal of the second capacitor to the output of the inverter.

Analog amplifiers and comparators

A method of communicating with an ingestible capsule includes detecting the location of the ingestible capsule, focusing a multi-sensor acoustic array on the ingestible capsule, and communicating an acoustic information exchange with the ingestible capsule via the multi-sensor acoustic array. The ingestible capsule includes a sensor that receives a stimulus inside the gastrointestinal tract of an animal, a bidirectional acoustic information communications module that transmits an acoustic information signal containing information from the sensor, and an acoustically transmissive encapsulation that substantially encloses the sensor and communications module, wherein the acoustically transmissive encapsulation is of ingestible size. The multi-sensor array includes a plurality of acoustic transducers that receive an acoustic signal from a movable device, and a plurality of delays, wherein each delay is coupled to a corresponding acoustic transducer. Each delay may be adjusted according to a phase of a signal received by the corresponding acoustic transducer.

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Huntington Beach, CA, United States of America

Robert Charles Schober