公开(公告)号：US20240041341A1

公开(公告)日：2024-02-08

申请号：US17881251

申请日：2022-08-04

Applicant: Qatar Foundation for Education, Science and Community Development

Inventor： Bo Wang ,  Muhammad Asfandyar Awan

IPC: A61B5/026 ,  A61B5/00

CPC classification number: A61B5/0261 ,  A61B5/6831 ,  A61B5/6832 ,  A61B5/7225 ,  A61B2562/0233

Abstract: Provided are methods and devices for blood flow measurement.

公开(公告)号：US11423275B2

公开(公告)日：2022-08-23

申请号：US17114362

申请日：2020-12-07

Applicant: Qatar Foundation for Education, Science and Community Development

Inventor： Bo Wang

IPC: G06K19/07 ,  G06K19/073

Abstract: A CMOS analog sensor interface circuit embedded in a passive RFID platform can provide accurate data conversion from analog signals to their digital representations. This interface can also utilize the RFID platform to achieve wireless data transmission. The disclosed sensor interface circuit includes signal filtering, signal amplification, as well as signal digitization. These circuits are all designed under the constraints of low-power operation on a noisy silicon substrate. By using the disclosed circuit design, fully passive wireless sensing network that can integrate with heterogeneous sensors (resistance, voltage, current types) can be designed. The advantages of low-cost, small feature size, and the ability to interface with analog sensors can enable large-scale deployment of such kind of RFIDs, both for consumer electronics like in-door monitoring and industrial sensing applications like the grid, electric vehicle, motor, and other critical infrastructures.

公开(公告)号：US20230392991A1

公开(公告)日：2023-12-07

申请号：US18204611

申请日：2023-06-01

Applicant: Qatar Foundation for Education, Science and Community Development

Inventor： Bo Wang

IPC: G01K7/01 ,  H03M1/10 ,  H03M1/12

CPC classification number: G01K7/015 ,  H03M1/1245 ,  H03M1/1014

Abstract: A complementary metal-oxide-semiconductor (CMOS) temperature sensor with wide-range sensing capability and high energy-efficiency is provided by a device, having: a bipolar junction transistor (BJT) core; an Analog to Digital Converter (ADC); a digital controller; and an amplifier configured to receive a selection signal from the digital controller to provide a voltage differential from the BJT core to the ADC at one of a first gain or a second gain, different from the first gain based on a temperature sensed by the BJT core. Additionally, a method of operation thereof is provided that includes: calibrating first and second gains associated with respective first and second temperature ranges for a temperature sensor at a shared temperature; determining whether a reading temperature for the temperature sensor is within the first or second temperature range; and applying one gain based on which temperature range the reading temperature is within.

公开(公告)号：US20240178819A1

公开(公告)日：2024-05-30

申请号：US18509481

申请日：2023-11-15

Applicant: Qatar Foundation for Education, Science and Community Development

Inventor： Bo Wang ,  Jens Schneider

IPC: H03H17/02 ,  H03K19/20

CPC classification number: H03H17/02 ,  H03K19/20

Abstract: Linear decimation filters for incremental delta-sigma analog to digital converters are provided with a data rate signal input; a digital signal input; a weight generator connected to the signal input to generate a weight signal via a weight signal output; an adder having a digital signal output, a first addition input connected to the weight signal output, and a second addition input connected to the digital signal output; and an AND-gate having a first input connected to the input data rate signal input and a second input connected to the digital signal input to produce a logical output that gates output from the digital signal output of the adder.