Sotera Wireless, Inc.

Apple Inc.

Mellanox Technologies Silicon Photonics Inc.

Zhou Zhou

Matthew J Banet

Henk Visser, Ii

Michael James Thompson

Marshal Singh Dhillon

Andrew S Terry

Robert James Kopotic

Adam Michael Fleming

Sharad Deepak Sambhwani

Robert Kenneth Hunt

Dazeng Feng

Kenneth Robert Hunt

Shirong Liao

Roshanak Shafiiha

Zhi Li

C C Kung

Dhillon Singh Marshal

A wireless communication system may use forward-forward learning to for end-to-end learning. A transmitter may pass a positive dataset and a negative dataset through each of its layers for model training. Each layer may correspond to a goodness function. The transmitter may send the positive dataset to a receiver. The receiver may generate a second positive dataset and a second negative dataset based on the positive dataset sent from the receiver. The receiver may train each of its layers using the second positive dataset and the second negative dataset.

Forward-forward learning based wireless communications systems

A first device may transmit a first symbol for a second device and a second symbol for a third device. The first device may generate a first dictionary and a second dictionary that satisfy a complementary rule. The first device may modulate the first symbol onto an entry from the first dictionary to produce first modulated data and may modulate the second symbol onto an entry from the second dictionary to produce second modulated data. The first device may generate a third symbol as a joint modulation of the first and second modulated data and may transmit the third symbol using a resource element. The second device may decode the third symbol based on the first dictionary to recover the first symbol. The third device may decode the third symbol based on the second dictionary to recover the second symbol. Privacy may be maintained between the second and third devices.

Wireless devices with privacy modulation coding

The invention features a vital sign monitor that includes: 1) a hardware control component featuring a microprocessor that operates an interactive, icon-driven GUI on an LCD; and, 2) a sensor component that connects to the control component through a shielded coaxial cable. The sensor features: 1) an optical component that generates a first signal; 2) a plurality electrical components (e.g. electrodes) that generate a second signal; and, 3) an acoustic component that generates a third signal. The microprocessor runs compiled computer code that operates: 1) the touch panel LCD; 2) a graphical user interface that includes multiple icons corresponding to different software operations; 3) a file-management system for storing and retrieving vital sign information; and 4) USB and short-range wireless systems for transferring data to and from the device to a PC.

Hand-held vital signs monitor

The invention features a vital sign monitor that includes: 1) a hardware control component featuring a microprocessor that operates as interactive, icon-driven GUI on an LCD; and, 2) a sensor component that connects to the control component through a shielded coaxial cable. The sensor features: 1) an optical component that generates a first signal; 2) a plurality electrical components (e.g. electrodes) that generate a second signal; and, 3) an acoustic component that generates a third signal. The microprocessor runs compiled computer code that operates: 1) the touch panel LCD; 2) a graphical user interface that includes multiple icons corresponding to different software operations; 3) a file-management system for storing and retrieving vital sign information; and 4) USB and short-range wireless systems for transferring data to and from the device to a PC.

The invention provides a monitor for measuring blood pressure and other vital signs from a patient without using a cuff. The invention provides a hand-held device for measuring vital signs (e.g. blood pressure) from a patient that features: i) a housing that encloses a first sensor, that includes a first electrode and a first optical system configured to generate a first optical signal; ii) a second sensor that includes a second electrode and a second optical system configured to generate a second optical signal; iii) an amplifier system, in electrical contact with the first and second electrodes, configured to processes electrical signals from the first and second electrodes to generate an electrical waveform; and iv) a microprocessor, in electrical communication with the amplifier system, first optical system, and second optical system, the microprocessor configured to process the electrical waveform and first and second optical signals with an algorithm to determine at least one of the patient's vital signs.

System for measuring vital signs using bilateral pulse transit time

The light sensor and waveguide are positioned on a base such that a light signal guided by the waveguide is received at the light sensor. The waveguide includes a taper configured such that a ratio of a width of the waveguide at a first location in the taper:the width of the waveguide at a second location in the taper is greater than 1.2:1 where a length of the taper between the first location and the second location is less than 60 &#x3bc;m.

Enhancing the performance of light sensors that receive light signals from an integrated waveguide

A method and apparatus for measuring a patient's blood pressure featuring the following steps: 1) measuring a time-dependent optical waveform with an optical sensor; 2) measuring a time-dependent electrical signal with an electrical sensor; 3) estimating the patient's arterial properties using the optical waveform; 4) determining a pulse transit time (PTT) from the time-dependent electrical signal and the time-dependent optical waveform; and 5) calculating a blood pressure value using a mathematical model that includes the PTT and the patient's arterial properties.

Vital sign monitor for cufflessly measuring blood pressure using a pulse transit time corrected for vascular index

A body-worn sensor that measures respiratory rate and other vital signs using an acoustic sensor (e.g., a small-scale sensor). The body-worn sensor features a chest-worn patch sensor that combines both the acoustic sensor and an ECG electrode into a single adhesive patch. To measure blood pressure, the device additionally performs a 'composite' PTT-based measurement that features both pressure-dependent and pressure-free measurements. The acoustic sensor measures respiration rate by recording sounds related to the patient's inspiration and expiration. The acoustic sensor is typically placed near the patient's trachea, but can also be placed on the middle right and left side of the chest, and the middle right and left side of the back.

Device for determining respiratory rate and other vital signs

A two-component monitoring device and system for monitoring blood pressure from a patient is disclosed herein. The two-component monitoring device includes a disposable component and a main component. The disposable component features: i) a backing structure having a first aperture; and ii) first and second electrodes, each electrode connected to the backing structure and including an electrical lead and a conductive electrode material, and configured to generate an electrical signal that passes through the electrical lead when the conductive electrode material contacts the patient. The main component includes: i) first and second connectors configured to connect to the first and second electrical leads to receive the first and second electrical signals; and ii) an optical component comprising a light source that generates optical radiation and a photodetector that detects the optical radiation. The optical component inserts into the first aperture of the disposable component. The main component optionally includes an acoustic sensor. The system utilizes a processing device, connected to the monitoring device by a cable which receives and processes a plurality of signals to determine real-time blood-pressure values for the patient.

Two-part patch sensor for monitoring vital signs

A method and apparatus for continuous measurement of blood pressure, based on pulse transit time, which does not require any external calibration. This technique, referred to herein as the 'composite technique', is carried out with a body-won sensor that measures blood pressure and other vital signs, and wirelessly transmits them to a remote monitor. A network of disposable sensors, typically placed on the patient's right arm and chest, connect to the body sensor and measure a time-dependent electrical waveform, optical waveform, and pressure waveform. The disposable sensors typically include an armband that features an inflatable bladder coupled to a pressure sensor, at least 3 electrical sensors (e.g. electrodes), and an optical sensor (e.g., a light source and photodiode) attached to a wrist-worn band.

Vital sign monitor for measuring blood pressure using optical, electrical and pressure waveforms

The invention features a monitoring device that measures a patient's vital signs (e.g. blood pressure). The device features a first sensor configured to attach to a first portion of the patient's body that includes: i) a first electrode configured to generate a first electrical signal from the first portion of the patient's body; ii) a first light-emitting component; and iii) a first photodetector configured to receive radiation from the first portion of the patient's body after the radiation is emitted by the first light-emitting component and in response generate a first optical waveform. The device also features a second sensor that includes essentially the same components. An amplifier system, in electrical contact with the first and second electrodes, receives first and second electrical signals from the two sensors to generate an electrical waveform. A processor, in electrical contact with the amplifier system, receives the electrical waveform, the first optical waveform, and the second optical waveform. The processor runs computer code that processes the input waveforms with an algorithm to determine at least one of the patient's vital signs.

Bilateral device, system and method for monitoring vital signs

The invention features a monitoring device that measures a patient's vital signs (e.g.). The device features a first sensor configured to attach to a first portion of the patient's body that includes: i)a first electrode configured to generate a first electrical signal fron the first portion of the patient's body; ii)a first light-emitting component; and iii)a first photodetector configured to receive radiation from the first portion of the patient's body after the radiation is emitted by the first light-emiting component and in response generate a first optical waveform. The device also features a second sensor that includes essentially the same components. An amplifier system, in electrical contact with the first and second electrodes, receives first and second electrical signal from the two sensors to generate an electrical waveform. A processor, in electrical contact with the amplifier system, receives the electrical waveform, the first optical waveform, and the second optical waveform. The processor runs computer code that processes the input waveforms with an algorithm to determine at least one of the patient's vital signs.

Growing community of inventors

La Jolla, CA, United States of America

Zhou Zhou