Jeffrey A Parker

US Patent:

6785436, Aug 31, 2004

Filed:

Dec 28, 2001

Appl. No.:

10/034020

Inventors:

Rayadurgam Ravikanth - Acton MA
Kenneth J. Schroder - Waltham MA
Mukesh Chatter - Hopkinton MA
Peter Marconi - Hopkinton MA
Jeffrey Parker - Newton MA
Dimitry Haskin - Andover MA
Zbigniew Opalka - Harvard MA

Assignee:

Axiowave Networks, Inc. - Marlborough MA

International Classification:

G02B 625

US Classification:

385 16, 385 17, 398 45, 398 58, 398 79, 709223

Abstract:

A method of and operating architectural enhancement for combining photonic and data packet-based networks to be unified or integrated as a single device and with a common software control plane, enabling increased utilization of such combined networks and in particular of optical path data flow capacity.

US Patent:

7265588, Sep 4, 2007

Filed:

Aug 17, 2005

Appl. No.:

11/205668

Inventors:

Christopher Chang - Medfield MA, US
Jeffrey Lewis Parker - Arlington MA, US

Assignee:

Digi International, Inc. - Minnetonka MN

International Classification:

H03K 19/00

US Classification:

326 93, 326 38

Abstract:

A clock change circuit includes enabling a clock change frequency to be accepted while a system is active and clock frequencies are at a low period. The circuit includes generating an enabling signal representing a window of time in which a frequency change is accomplished.

US Patent:

8629932, Jan 14, 2014

Filed:

Aug 17, 2009

Appl. No.:

12/542458

Inventors:

Tigran Galstian - Quebec, CA
Peter P. Clark - Boxborough MA, US
Thomas Charles Antognini - Lexington MA, US
Jeffrey James Parker - Millis MA, US
Derek Alexandre Proudian - Palo Alto CA, US
Thomas Edwin Killick - Danville CA, US
Armen Zohrabyan - Quebec, CA

Assignee:

Lensvector, Inc. - Mountain View CA

International Classification:

G03B 13/00
H04N 5/232
G02F 1/13
G03B 3/00
G03B 13/18
G03B 13/32

US Classification:

348349, 349200, 396 89

Abstract:

A camera module and method for focusing a tunable lens configured to continuously vary its optical power in response to a drive signal. A drive circuit generates the drive signal so that the tunable lens performs a continuous scan of its optical power. An image sensor is configured to acquire light images passing through the tunable lens, and to convert the light images to image signals during the continuous scan. A processor is configured to generate focus scores of the acquired light images using the image signals during the continuous scan. The processor is configured to determine from the focus scores a peak focus score achieved or achievable, and to instruct the drive circuit to adjust the drive signal so that the tunable lens settles at a value of the optical power that corresponds to the peak focus score.

US Patent:

20130014395, Jan 17, 2013

Filed:

Mar 14, 2012

Appl. No.:

13/419788

Inventors:

Ashok Bakul Patel - Needham MA, US
Jeffrey Stuart Parker - Quincy MA, US
Bin Shen - Brighton MA, US
Kenneth James Skrobis - Maynard MA, US
Matthew Robet Stone - Oxford MA, US
John Joseph Nisby - Hanson MA, US
Jason Scott Slattery - Malden MA, US
Yongqing Nu - Medfield MA, US

International Classification:

B26B 21/60
B26B 21/58
B26B 21/56

US Classification:

3034654, 3034655, 3034653

Abstract:

A razor blade including a substrate with a coating joined to the substrate defining a coated blade. The coated blade including a cutting edge being defined by a blade tip having a tip radius of from 500 to 1500 angstroms. The coated blade having a thickness of between 0.3 and 0.5 micrometers measured at a distance of 0.25 micrometers from the blade tip, a thickness of between 0.4 and 0.65 micrometers measured at a distance of 0.5 micrometers from the blade tip, a thickness of between 0.61 and 0.71 micrometers measured at a distance of 1 micrometer from the blade tip, a thickness of between 0.96 and 1.16 micrometers measured at a distance of 2 micrometers from the blade tip, and a thickness of between 1.56 and 1.91 micrometers measured at a distance of 4 micrometers from the blade tip.

US Patent:

20130014396, Jan 17, 2013

Filed:

Mar 14, 2012

Appl. No.:

13/419929

Inventors:

Kenneth James Skrobis - Maynard MA, US
Jeffrey Stuart Parker - Quincy MA, US
Bin Shen - Brighton MA, US
Matthew Robert Stone - Oxford MA, US
John Joseph Nisby - Hanson MA, US
Jason Scott Slattery - Malden MA, US
Yongqing Ju - Medfield MA, US

International Classification:

B26B 21/60
B26B 21/58
B26B 21/56

US Classification:

3034654, 3034655, 3034653

Abstract:

A razor blade including a substrate with a coating joined to the substrate defining a coated blade. The coated blade including a cutting edge being defined by a blade tip having a tip radius of from 50 to 350 angstroms. The coated blade having a pair of first facets extending from the blade tip and a pair of second facets extending from the respective first facets, a facet angle from 90 to 135, a facet width from 0.38 micrometers to 0.65 micrometers a wedge angle from 5 to 30, and a thickness of between 0.8 and 1.5 micrometers measured at a distance of 1 micrometer from the blade tip.

US Patent:

20130031794, Feb 7, 2013

Filed:

Jul 30, 2012

Appl. No.:

13/561904

Inventors:

Jeffrey Stuart Parker - Quincy MA, US
Yongqing Ju - Medfield MA, US
Xiandong Wang - Acton MA, US

International Classification:

B26B 21/00
C23C 14/35
B26B 21/40
C23C 16/06
B26B 21/60
B26B 21/52

US Classification:

30526, 3034653, 30345, 30 32, 42725538, 20419215

Abstract:

This invention relates to a novel application of hard, low friction aluminum magnesium boride (AlMgB, also known as BAM) based ceramic coatings to surfaces of razor components and in particular to blade edges of razor blades. On razor blade edges, these coatings may elevate blade performance, while also simplifying the manufacturing process.

US Patent:

59565365, Sep 21, 1999

Filed:

Aug 21, 1996

Appl. No.:

8/700820

Inventors:

Joseph J. Dow - Belmont MA
Jeffrey J. Parker - Millis MA
Duncan C. Sorli - Chelmsford MA

Assignee:

Polaroid Corporation - Cambridge MA

International Classification:

G03B 1320

US Classification:

396164

Abstract:

A close-up camera having a plurality of selectable exposure parameters such as variations in magnification, exposure trim and flash illumination includes a lookup table programmed to define follow focus flash illumination in accordance with the parameters selected. Preferably, the camera includes a plurality of exposure lenses, a pair of strobes, an exposure trim selector and a look-up table programmed to define a quench time for the strobes in accordance with the parameters selected. Filter accessories, configured to extend across the camera face, are also provided to modify both the scene light passing to the exposure lens and the illumination from the flash strobes, and the camera includes both additional look-up table capacity for selecting a proper quench time to account for the filter accessory, and means for interfacing with the accessory to automatically modify camera operation in accordance therewith. To facilitate mounting on and removal from the camera, the filter accessory includes a moveable side operable to open and close the facing sides of the accessory.

US Patent:

20180162000, Jun 14, 2018

Filed:

Feb 12, 2018

Appl. No.:

15/894297

Inventors:

- Boston MA, US
Jeffrey Stuart Parker - Quincy MA, US
Yongqing Ju - Kronberg, DE
Xiandong Wang - Acton MA, US

International Classification:

B26B 21/60

Abstract:

This invention relates to a novel application of hard, low friction aluminum magnesium boride (AlMgB, also known as BAM) based ceramic coatings to surfaces of razor components and in particular to blade edges of razor blades. On razor blade edges, these coatings may elevate blade performance, while also simplifying the manufacturing process.