Martin L Williams

US Patent:

7949257, May 24, 2011

Filed:

Nov 12, 2007

Appl. No.:

11/938754

Inventors:

Christopher Lin - El Cerrito CA, US
Mark Summa - Painted Post NY, US
Martin Williams - Corning NY, US
Douglas Butler - Painted Post NY, US
Peter Wigley - Corning NY, US

Assignee:

Oclaro (North America), Inc. - San Jose CA

International Classification:

H04B 10/08
H04B 10/12
H04B 10/00
H04J 14/02

US Classification:

398 81, 398 33, 398147, 398159

Abstract:

One embodiment sets forth a technique for measuring chromatic dispersion using reference signals within the operational range of amplifiers used to refresh data signals. One red/blue laser pair in the transmission node is used for measuring dispersion and chromatic dispersion compensation is added at each line node in the system. Since reference and data signals propagate through each amplifier, the reference signals used to measure chromatic dispersion receive the same dispersion compensation (and will have the same residual dispersion) as the data signals. Therefore, any residual dispersion in the data signals will manifest itself in downstream dispersion measurements and, thus, can be corrected. The tunable dispersion compensator in each line node may be set to compensate for the measured dispersion, thereby compensating for both the chromatic dispersion of the link connecting the current node to the prior node and any uncorrected residual dispersion from prior nodes.

US Patent:

8294981, Oct 23, 2012

Filed:

Sep 15, 2009

Appl. No.:

12/584919

Inventors:

Christopher Lin - El Cerrito CA, US
Ming Cai - Fremont CA, US
Martin Williams - Big Flats NY, US

Assignee:

Oclaro Technology Limited - Northamptonshire

International Classification:

H04B 10/17
H04B 10/12

US Classification:

3593372, 3593371

Abstract:

Described are Gain Flattening Filters (GFFs) implemented using mechanical translating assemblies to move selected thin film Gain Attenuating Filters (GAFs), and combinations of selected GAFs, into or out of the output path from an optical amplifier. The GAFs may be used singly, or in combinations that synthesize many target filter characteristics. The GFF is primarily adapted for WDM systems operating with a wavelength range of approximately 1520 nm to 1620 nm. Several embodiments are shown for effectively combining different GAFs to provide multiple GFF curves.

US Patent:

20120232832, Sep 13, 2012

Filed:

Mar 9, 2011

Appl. No.:

13/044175

Inventors:

Ralph M. Kling - Sunnyvale CA, US
Michael A. Horton - Mountain View CA, US
Martin A. Williams - Danville CA, US
David J. Zaziski - San Mateo CA, US

Assignee:

CROSSBOW TECHNOLOGY, INC. - Milpitas CA

International Classification:

G01P 15/02
G06F 15/00

US Classification:

702141, 7351416

Abstract:

A spatially distributed MEMS inertial sensor array is designed to reduce or cancel measurement errors and to increase the signal detection accuracy. By combining the measurements from a pair of sensors having sensing axes in two different, non-orthogonal directions, the correlated error due to the environmental changes are cancelled or reduced and the uncorrelated random noise is also reduced by the square root of two. By sequentially sampling the sensor array in the time domain, the number of the ADC circuits can be largely reduced. A two dimensional signal processing method is used to process the sensor array output data, in order to further reduce the remaining errors. Namely, one dimension uses the outputs from multiple spatially distributed sensor sets and the other dimension is the time domain. The signal to noise ratio is increased by using the signal correlation in both the spatial domain and the time domain.

US Patent:

20210339043, Nov 4, 2021

Filed:

May 14, 2021

Appl. No.:

17/320632

Inventors:

- Cambridge MA, US
Martin Warren Williams - San Francisco CA, US

International Classification:

A61N 5/06
A61N 1/36
A61N 1/04
H05B 47/105
A61B 5/00
A61B 5/38
A61B 5/377
A61B 5/378
A61M 21/00
G02C 11/00
A61B 5/16

Abstract:

Systems and methods of the present disclosure are directed to systems and methods for treating cognitive dysfunction in a subject in need thereof. The system can include eyeglasses, a photodiode positioned to detect ambient light, light sources, and an input device. The system can include a neural stimulation system that retrieves a profile and selects a light pattern having a fixed parameter and a variable parameter. The neural stimulation system can set a value of the variable parameter of the light pattern, construct an output signal, and then provide the output signal to the light sources to direct light towards the fovea.

US Patent:

20210121713, Apr 29, 2021

Filed:

Jul 2, 2020

Appl. No.:

16/919975

Inventors:

- Newton MA, US
Martin Warren Williams - San Francisco CA, US

International Classification:

A61N 5/06
A61B 5/00
A61N 1/36
A61N 1/04
H05B 47/105
A61B 5/38
A61B 5/377
A61B 5/378
A61M 21/00
G02C 11/00
A61B 5/16

Abstract:

Systems and methods of the present disclosure are directed to systems and methods for treating cognitive dysfunction in a subject in need thereof. The system can include a light source and a speaker. A visual neural stimulation system provides, via the light source, visual stimulation having a first value of a first parameter. An auditory neural stimulation system provides, via the speaker, audio stimulation having a second value of the second parameter. A stimuli orchestration component selects, for a first time interval, one of the visual stimulation or the audio stimulation to vary based on a policy, selects, for the first time interval, the other of the visual stimulation or the audio stimulation to keep constant based on the policy, and provides causes the one of the visual neural stimulation system or the auditory neural stimulation system to vary the one of the visual stimulation or the audio stimulation.

US Patent:

20190321588, Oct 24, 2019

Filed:

Jun 3, 2019

Appl. No.:

16/429848

Inventors:

- Hayward CA, US
Rich KEENAN - Livermore CA, US
Dimitri SOKOLOV - Castro Valley CA, US
Stephen BOYD - San Francisco CA, US
Martin WILLIAMS - San Francisco CA, US
Michelle ARNEY - San Francisco CA, US

Assignee:

Potrero Medical, Inc. - Hayward CA

International Classification:

A61M 25/00
A61M 27/00
A61M 1/00
A61B 5/00
A61B 5/20

Abstract:

Systems, devices and methods for draining and analyzing bodily fluids are disclosed in which a drainage assembly is configured to prevent negative pressure build-up. The drainage assembly generally includes a catheter which may include a drainage lumen, a reservoir, a venting mechanism in fluid communication with the drainage lumen and a positive pressure lumen, and a controller. The venting mechanism may further include a valve which is configured to maintain a closed position, as well as a vent in fluid communication with the valve, where the venting mechanism is configured to inhibit wetting of the vent from fluid within the drainage lumen

US Patent:

20190314641, Oct 17, 2019

Filed:

May 30, 2019

Appl. No.:

16/427276

Inventors:

- Newton MA, US
Martin Warren Williams - San Francisco CA, US

Assignee:

Cognito Therapeutics, Inc. - Newton MA

International Classification:

A61N 5/06
A61B 5/00
G02C 11/00
A61B 5/0484
A61N 1/36
A61N 1/04
A61M 21/00
H05B 37/02
A61B 5/16

Abstract:

Systems and methods of the present disclosure are directed to systems and methods for treating cognitive dysfunction in a subject in need thereof. The system can include a light source and a speaker. A visual neural stimulation system provides, via the light source, visual stimulation having a first value of a first parameter. An auditory neural stimulation system provides, via the speaker, audio stimulation having a second value of the second parameter. A stimuli orchestration component selects, for a first time interval, one of the visual stimulation or the audio stimulation to vary based on a policy, selects, for the first time interval, the other of the visual stimulation or the audio stimulation to keep constant based on the policy, and provides causes the one of the visual neural stimulation system or the auditory neural stimulation system to vary the one of the visual stimulation or the audio stimulation.

US Patent:

20190269936, Sep 5, 2019

Filed:

May 17, 2019

Appl. No.:

16/415825

Inventors:

- Newton MA, US
Martin Warren Williams - San Francisco CA, US

International Classification:

A61N 5/06
A61N 1/36
A61N 1/04
A61B 5/0484
A61M 21/00
G02C 11/00
A61B 5/00
A61B 5/16
H05B 37/02

Abstract:

Systems and methods of the present disclosure are directed to systems and methods for treating cognitive dysfunction in a subject in need thereof. The system can include a neural stimulation system that receives an indication of an ambient audio signal detected by a microphone. The system selects, from a profile, an audio signal including a fixed parameter and a variable parameter. The system sets the variable parameter to a first value. The system generates an output signal based on the fixed parameter and the first value, and provides the output signal to the speaker. The system measures a physiological condition of the subject, adjusts the variable parameter to a second value, generates a second output signal based on the fixed parameter and the second value of the variable parameter, and provides the output signal to the speaker to cause the speaker to provide modified sound to the subject.