David G Li

20130304389, Nov 14, 2013

Apr 24, 2013

13/869813

Abbott Diabetes Care Inc. - , US
David L. Li - Fullerton CA, US

A61B 5/145

702 19

In some aspects, methods of lag compensation of analyte measurements are provided. Methods of lag-compensation are provided for analyte point measurements and/or for analyte rate-of-change measurements. The methods include receiving a series of uncompensated analyte measurements and determining parameter values for analyte point and/or rate-of-change estimates based on reference analyte measurements. The analyte rate-of-change estimate is based on a sum of a plurality of scaled rates-of-changes. The analyte point estimate is based on a sum of an analyte point and a sum of a plurality of scaled rates-of-changes. Devices related to the methods are also provided.

20220276389, Sep 1, 2022

Apr 29, 2022

17/661487

- Moline IL, US
Richard G. Keegan - Irvine CA, US
Mark P. Kaplan - Culver City CA, US
Brian C. Goodrich - Torrance CA, US
David M. Li - Harbor City CA, US

G01S 19/21
G01S 19/37
G01S 19/29
G01S 19/30

A receiver comprises a mixer that is capable of mixing a selected, received GNSS signal and the local carrier frequency signal (e.g., adjusted with offset signal feedback) or local carrier IF signal to provide a baseband signal. A filter is configured to low-pass filter and to decimate the received samples of digital baseband signal that is encoded by a received pseudo random noise code (PN) sequence. A control module is configured to align temporally one or more received samples of the received PN sequence, or a portion thereof, in a buffer data storage device with a clock edge or symbol transition of the clock signal of a set of local samples of corresponding PN local sequence, or portion thereof, of a local signal or PN replica signal. A set of correlators or the data processing module is configured correlate the received samples of the received PN code sequence, or portion thereof, in a buffer data storage with the respective set of local samples of the local PN sequence, or portion thereof, to pursue identification of a temporally aligned, local PN code sample associated with the corresponding selected, received GNSS signal. Integrators can generate integrations of the correlations to identify clock edge or symbol transitions in the received PN code sequence. A data processing module is configured to evaluate the correlations with the greatest signal energy or magnitude with identifiable symbol transitions that are generally indicative of acquisition of or the identification of the proper temporally aligned carrier frequency offset of the GNSS signal.

20220209805, Jun 30, 2022

Sep 30, 2021

17/449596

- Moline IL, US
Mark P. Kaplan - Culver City CA, US
Richard G. Keegan - Palos Verdes Estates CA, US
David M. Li - Harbor City CA, US

H04B 1/10
H04B 1/12
H04B 1/00
H04B 1/04

A selective filtering module is arranged to filter or process the digital baseband signal consistent with a target receiving bandwidth, where the selective filtering module comprises a narrowband rejection filter and wide-band filter configured to reject an interference component that interferes with the received radio frequency signal. The narrowband rejection filter is configured to reject a first interference component, where the narrowband rejection filter comprises an adaptive notch filter (NF). The wide band rejection filter is configured to reject a second interference component in accordance with a pulse blanking technique. An electronic data processor is adapted to control one or more filter coefficients of narrowband rejection filter and the wide band rejection filter in accordance with one or more strategic filter control factors among ADC saturation, activation/deactivation of the notch filter, and a wide-band spectrum analysis.

20220182088, Jun 9, 2022

Sep 30, 2021

17/449589

- Moline IL, US
Mark P. Kaplan - Culver City CA, US
Richard G. Keegan - Palos Verdes Estates CA, US
David M. Li - Harbor City CA, US

H04B 1/10
H04B 1/7105
H04B 1/71

A controller is configured to control the adaptive notch filter and to execute a search technique (e.g., artificial intelligence (AI) search technique) to converge on filter coefficients and to recursively adjust the filter coefficients of the adaptive notch filter in real time to adaptively adjust one or more filter characteristics (e.g., maximum notch depth or attenuation, bandwidth of notch, or general magnitude versus frequency response of notch).

20200246113, Aug 6, 2020

Jul 30, 2019

16/526014

David Li - Arcadia CA, US

A61C 5/42

In aspect, a multi-directional endodontic file in the present invention may include a non-cutting portion, a shaft and a plurality of thin cutting blades branching from the shaft toward different directions. More specifically, the cutting blades are branched from an upper portion, a center portion and a lower portion of the shaft. Comparing with conventional endodontic files having a relatively rigid cutting portion, the endodontic file in the present invention has a hollow structure with a plurality of thin cutting blades extending from the shaft, which conducts the cutting in the root canal more conservatively, and since each cutting blade extends toward different directions, each blade operates independently at different levels.

20170095213, Apr 6, 2017

Oct 10, 2016

15/289776

- Alameda CA, US
David L. Li - Fullerton CA, US

A61B 5/00
A61B 5/145

In some aspects, methods of lag compensation of analyte measurements are provided. Methods of lag-compensation are provided for analyte point measurements and/or for analyte rate-of-change measurements. The methods include receiving a series of uncompensated analyte measurements and determining parameter values for analyte point and/or rate-of-change estimates based on reference analyte measurements. The analyte rate-of-change estimate is based on a sum of a plurality of scaled rates-of-changes. The analyte point estimate is based on a sum of an analyte point and a sum of a plurality of scaled rates-of-changes. Devices related to the methods are also provided.