Marcus D Weber

US Patent:

20220265157, Aug 25, 2022

Filed:

Oct 7, 2021

Appl. No.:

17/496216

Inventors:

- San Mateo CA, US
Marcus WEBER - San Francisco CA, US

International Classification:

A61B 5/0285
A61B 5/00
G16H 40/67
G16H 50/30

Abstract:

Described here are wireless monitoring devices, systems, and methods for estimating one or more physiological parameters of a patient. These devices and systems may measure or receive a signal waveform transmitted through one or more of fluid and a physiological structure of a patient. This measured signal waveform may be processed to generate waveform parameter data used to estimate a physiological parameter such as blood velocity, heart wall thickness, and the like.

US Patent:

20170125892, May 4, 2017

Filed:

Dec 7, 2016

Appl. No.:

15/371648

Inventors:

- Palo Alto CA, US
Marcus J. Weber - Palo Alto CA, US

International Classification:

H01Q 1/27
H04B 5/00
H01Q 1/22

Abstract:

A wireless powering and communication system is provided that includes a base unit, and an external unit that is separate from the base unit, where the base unit includes a single transducer circuit configured for uplink data communication to the external unit, where the transducer circuit is configured for power recovery from the external unit, a multiplexer circuit, a power recovery and conditioning circuit, a controller circuit, and a communication circuit, where the multiplexer circuit is configured to decouple power and data paths to enable operation with the single transducer circuit, the power recovery and conditioning circuit is configured to recover and optionally store power from power received by the single transducer circuit, the power recovery and conditioning circuit is configured to power the controller circuit and the communication circuit, the controller circuit is configured to control the multiplexer circuit, the communication circuit is configured to provide data to the multiplexer circuit.

US Patent:

20170117753, Apr 27, 2017

Filed:

Sep 30, 2016

Appl. No.:

15/282417

Inventors:

- Palo Alto CA, US
Marcus J. Weber - Palo Alto CA, US
Mohammad Amin Arbabian - San Francisco CA, US
Ting Chia Chang - Stanford CA, US

International Classification:

H02J 50/15
A61B 5/01
A61B 5/07
A61N 1/372
A61B 5/03
A61B 5/145
A61B 5/00
A61H 21/00
H02J 7/02
A61B 5/04

Abstract:

Efficient power transmission from an acoustic transmitter to an electrical load on an implanted device is provided using a control system that at least varies the transmitted acoustic frequency. Varying the transmitted frequency can change the electrical impedance of the acoustic transducer in the receiver that receives power from the transmitter. This ability to vary the transducer impedance can be used to optimize power delivery to the load.

US Patent:

20140336474, Nov 13, 2014

Filed:

May 13, 2014

Appl. No.:

14/276827

Inventors:

- Palo Alto CA, US
Marcus Weber - Palo Alto CA, US

International Classification:

H02J 7/00
A61B 5/01
H04B 11/00
A61B 5/053
A61B 5/145
A61B 5/00
A61B 5/11

US Classification:

600301, 600300

Abstract:

Aspects of the present disclosure are directed toward apparatuses, systems, and methods that include a base unit and a communication circuit that communicate, while implanted in a patient, signals between the patient and at least one device located external to the patient. The base unit also includes a transducer that communicates ultrasound (US) signals between the base unit and the at least one device located external to the patient, and harvests energy carried by the US signals.