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For the Inventor, By the Inventor

Hong Kong, China

Ho Ming (Karen) Wan

USPTO Granted Patents = 9

Average Co-Inventor Count = 3.7

ph-index = 5

Forward Citations = 76(Granted Patents)


Company Filing History:

goldMedal9 out of 583 
 
Hong Kong Applied Science and Technology Research Institute Company, Limited
 patents

Years Active: 2012-2017

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9 patents (USPTO):Explore Patents
1. 9706269 - Self-powered and battery-assisted CMOS wireless bio-sensing IC platform (2017-07-11),
2. 9661695 - Low-headroom constant current source for high-current applications (2017-05-23),
3. 9484945 - Asynchronous successive-approximation-register analog-to-digital converter (SAR ADC) in synchronized system (2016-11-01),
4. 9190961 - Digitally-programmable gain amplifier with direct-charge transfer and offset cancellation (2015-11-17),
5. 8797776 - Diode-less full-wave rectifier for low-power on-chip AC-DC conversion (2014-08-05),
6. 8471744 - Reduced residual offset sigma delta analog-to-digital converter (ADC) with chopper timing at end of integrating phase before trailing edge (2013-06-25),
7. 8421660 - Configurable cascading sigma delta analog-to digital converter (ADC) for adjusting power and performance (2013-04-16),
8. 8416107 - Charge compensation calibration for high resolution data converter (2013-04-09),
9. 8258864 - Ultra low voltage multi-stage high-speed CMOS comparator with autozeroing (2012-09-04),

Title: Innovations of Ho Ming (Karen) Wan

Introduction

Ho Ming (Karen) Wan is a prominent inventor based in Hong Kong, CN. He has made significant contributions to the field of bio-sensing technology, holding a total of 9 patents. His work focuses on developing advanced integrated circuits that enhance the capabilities of bio-sensors.

Latest Patents

One of his latest patents is the "Self-powered and battery-assisted CMOS wireless bio-sensing IC platform." This innovative bio-sensing processor chip serves as an auto-configurable platform to support a wide variety of bio-sensors. It utilizes nano-wires with attached bio-receptors for specific bio-molecules, including ECG and SPO2 bio-sensors, which drive analog voltages or currents to the chip's analog inputs. The inputs are divided into three sections, with a detector/decoder identifying active inputs and configuring an analog-to-digital converter (ADC) to convert them into digital bits of varying resolutions. The system also incorporates a Universal Asynchronous Receiver Transmitter (UART) for transmitting digital values to external devices via NFC or WiFi. In cases where no battery is detected, energy is harvested from NFC signals, allowing for one-shot measurements.

Another notable patent is the "Low-headroom constant current source for high-current applications." This invention features a low-headroom current driver that operates without an op amp or resistor. It employs a sensing transistor to monitor variations in output current, with the gate, source, and drain voltages mirrored to control a sense current. The system generates a negative-feedback compensation current to adjust the gate voltage of the output transistor, ensuring stability in high-current applications.

Career Highlights

Ho Ming (Karen) Wan is currently affiliated with the Hong Kong Applied Science and Technology Research Institute Company, Limited. His work at this institution has allowed him to push the boundaries of bio-sensing technology and contribute to advancements in the field.

Collaborations

He collaborates with notable colleagues, including Kwai Chi Chan and Yat To (William) Wong, who share his passion for innovation and research in technology.

Conclusion

Ho Ming (Karen) Wan's contributions to bio-sensing technology through his patents and collaborations highlight his role as a leading inventor in the field. His innovative approaches continue to pave the way for advancements in bio-sensing applications.

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