Ling Zheng

US Patent:

7660395, Feb 9, 2010

Filed:

Feb 11, 2005

Appl. No.:

10/596889

Inventors:

Ling Zheng - Billerica MA, US
Michael A. Lund - W. Newton MA, US

Assignee:

Aware, Inc. - Bedford MA

International Classification:

H04M 1/24
H04M 3/08
H04M 3/22

US Classification:

379 104

Abstract:

Prediction of a channel capacity is accomplished based on a TDR echo without explicitly estimating the topology of the line. The prediction is based on obtaining a measured TDR echo, determining a theoretical TDR echo for a plurality of loop lengths, estimating the equivalent TDR length based on an optimization, updating the equivalent TDR length and utilizing the updated TDR length to predict one or more of the upstream and downstream data rates.

US Patent:

20100135469, Jun 3, 2010

Filed:

Dec 23, 2009

Appl. No.:

12/646005

Inventors:

Ling Zheng - Billerica MA, US
Michael A. Lund - W. Newton MA, US

Assignee:

AWARE, INC. - Bedford MA

International Classification:

H04M 1/24
H04M 3/22

US Classification:

379 104

Abstract:

Prediction of a channel capacity is accomplished based on a TDR echo without explicitly estimating the topology of the line. The prediction is based on obtaining a measured TDR echo, determining a theoretical TDR echo for a plurality of loop lengths, estimating the equivalent TDR length based on an optimization, updating the equivalent TDR length and utilizing the updated TDR length to predict one or more of the upstream and downstream data rates.

US Patent:

20140039824, Feb 6, 2014

Filed:

Apr 20, 2012

Appl. No.:

14/112154

Inventors:

Ling Zheng - Acton MA, US
Yu Chen - Andover MA, US

International Classification:

A61B 5/00

US Classification:

702106, 600509

Abstract:

A patient monitoring device and method that determines and monitors at least one patient parameter is provided. A configuration processor generates configuration information in response to a first input signal and an adaptive notch filter receives a second input signal. The second input signal includes a signal of interest and an interference signal in a predetermined frequency range. The adaptive notch filter automatically estimates the interference signal within the second input signal based on a filter parameter and removes the estimated interference signal from the second input signal to generate a target signal. A step processor is electrically coupled between the configuration processor and the adaptive notch filter and sets a value of the filter parameter based on the configuration information, wherein the adaptive notch filter uses the filter parameter to reduce a ringing artifact on the target signal below a threshold level.

US Patent:

20220273871, Sep 1, 2022

Filed:

Jul 7, 2020

Appl. No.:

17/626414

Inventors:

- Osaka-shi, Osaka, JP
Ling Zheng - Acton MA, US

Assignee:

Takeda Pharmaceutical Company Limited - Osaka-shi, Osaka

International Classification:

A61M 5/172
A61M 5/142
A61M 5/14

Abstract:

An infusion system includes a pump unit and a motor unit. The pump unit may be configured to receive and/or retain at least one container of medicinal fluid, and may include a fluid distribution system at least partially engaged with a peristaltic pump head disposed in the pump unit. The motor unit may be removably received in the pump unit and coupled to the peristaltic pump head to drive fluid from the container to a fluid outlet that is couplable to an infusion set.

US Patent:

20190317104, Oct 17, 2019

Filed:

Jun 27, 2019

Appl. No.:

16/455307

Inventors:

- Franklin Lakes NJ, US
Ling Zheng - Acton MA, US
James Petisce - Westford MA, US

Assignee:

Becton, Dickinson and Company - Franklin Lakes NJ

International Classification:

G01N 33/66
A61B 5/1455
A61B 5/145
A61B 5/1459
A61M 5/172
A61B 5/1495
A61B 5/00

Abstract:

An optical analyte sensor and diabetes management system is provided. The sensor preferably includes a hydrogel matrix for receiving a sample containing an analyte at unknown concentration, a light emitter for emitting light at a stimulation frequency, a light receiver for receiving a fluorescence signal at a first isosbestic frequency, and at a second frequency, for measuring an intensity of the fluorescence signal and the first and second frequencies. A processor determines a concentration of the analyte based on the respective intensities.

US Patent:

20150185225, Jul 2, 2015

Filed:

Jul 31, 2014

Appl. No.:

14/448867

Inventors:

- Franklin Lakes NJ, US
Ling Zheng - Acton MA, US
James Petisce - Westford MA, US

Assignee:

BECTON, DICKINSON AND COMPANY - Franklin Lakes NJ

International Classification:

G01N 33/66
A61B 5/00
A61M 5/172
A61B 5/145
A61B 5/1459

Abstract:

An optical analyte sensor and diabetes management system is provided. The sensor preferably includes a hydrogel matrix for receiving a sample containing an analyte at unknown concentration, a light emitter for emitting light at a stimulation frequency, a light receiver for receiving a fluorescence signal at a first isosbestic frequency, and at a second frequency, for measuring an intensity of the fluorescence signal and the first and second frequencies. A processor determines a concentration of the analyte based on the respective intensities.

US Patent:

20140222350, Aug 7, 2014

Filed:

Jun 7, 2012

Appl. No.:

14/343359

Inventors:

Ling Zheng - Andover MA, US
Yu Chen - Andover MA, US

Assignee:

Draeger Medical Systems, Inc. - Andover MA

International Classification:

A61B 5/04
A61B 5/00

US Classification:

702 19

Abstract:

A system includes a low pass-filter and a Savitzky-Golay filter. The low-pass filter receives and processes a first electrocardiogram signal. The filter removes at least the high frequency components of the first electrocardiogram signal. The Savitzky-Golay filter estimates a baseline variation of the first electrocardiogram signal from the filtered first electrocardiogram signal. Related apparatus, systems, techniques and articles are also described.