Edward H Chen

Author:

Edward S. Chen

ISBN #:

0471326224

Author:

Edward S. Chen

ISBN #:

0873391330

Author:

Edward S. Chen

ISBN #:

0873393309

Author:

Edward Chen

ISBN #:

0072230118

US Patent:

8537023, Sep 17, 2013

Filed:

May 26, 2011

Appl. No.:

13/116438

Inventors:

Joseph Christian Ernest - Woodstock IL, US
Sean Edward Callahan - Elmhurst IL, US
Edward Wayted Chen - Chicago IL, US
Thomas Martin Kopera - Villa Park IL, US
Timothy Edward Canzano - Glen Ellyn IL, US

Assignee:

iLight Technologies, Inc. - Chicago IL

International Classification:

G08B 21/00
G01R 31/14

US Classification:

340650, 340649, 340635

Abstract:

An automatic fault detector momentarily interrupts a provision of operating power to a load having a minimal forward-bias voltage requirement to thereby provide a testing window and then applies a test voltage during this window that is less than the minimal forward-bias voltage requirement to the load and monitors for a power-to-ground fault. By one approach the aforementioned momentarily interruption of power is neither frequent enough nor long enough in duration to substantially impair the provision of power to the load. Accordingly, load performance is not noticeably diminished. One can then responsively prohibit subsequent provision of the operating power to the load. One can then continue to monitor for the power-to-ground fault while continuing to prohibit provision of operating power to the load. If and when the fault disappears, these teachings will then accommodate automatically resuming an ordinary provision of power to the load.

US Patent:

20030115320, Jun 19, 2003

Filed:

Dec 19, 2001

Appl. No.:

10/024797

Inventors:

Lamonte Yarroll - Palatine IL, US
Edward Chen - Palatine IL, US

International Classification:

G06F015/173
H04Q007/20

US Classification:

709/224000, 455/423000

Abstract:

An apparatus and method for tuning voice playback ratio (pbr) to optimize call quality in a packet voice communications system, while taking into account network conditions. The pbr is the ratio of resampling rate to the original sampling rate. The invention also optimizes jitter buffer length (jb) for call quality. Between bursts of speech, the preferred embodiment of the invention optimizes call quality by varying the initial jband the pbr to achieve the best R-factor (R). R is an estimate of customer satisfaction with the quality of a voice call in real time. During bursts of speech, the value of jbis fixed at the beginning of the BOS and the pbr is varied to achieve the best R. The method can be implemented during a burst of speech and between bursts of speech whenever the network conditions change.

US Patent:

43607586, Nov 23, 1982

Filed:

Jan 23, 1981

Appl. No.:

6/228039

Inventors:

William A. Thornton - Cranford NJ
Daniel A. Larson - Cedar Groove NJ
Edward Chen - Glen Rock NJ

Assignee:

Westinghouse Electric Corp. - Pittsburgh PA

International Classification:

H01J 6118
H01J 6148

US Classification:

313227

Abstract:

High-intensity-discharge lamp of the mercury-metal halide type efficiently illuminates objects with excellent color appearance. The arc tube filling comprises the usual inert, ionizable starting gas and mercury in predetermined amount as required to provide a predetermined operating voltage drop between the lamp electrodes. The metal halide filling substantially comprises a predetermined limited amount of thallous iodide, a predetermined limited amount of stannous iodide and a predetermined limited amount of calcium iodide. The stannous iodide is used in such amount that it serves primarily to enhance the emission of the calcium iodiode and the amount of stannous iodide is sufficiently limited to curtail the generation of the characteristic continuous tin emission. The calcium iodide is present in greater gram amount than the tin iodide so that the effects of the calcium iodide emission are predominant. The resulting discharge has its emission concentrated in three selected wavelength portions of the visible spectrum, namely, blue violet which is due primarily to the calcium iodide emission, green which is due to the thallium iodide emission, and red which is due to the tin-iodide-enhanced calcium iodide emission.

US Patent:

43347827, Jun 15, 1982

Filed:

Aug 25, 1980

Appl. No.:

6/181338

Inventors:

William A. Thornton - Cranford NJ
Edward Chen - Glen Rock NJ
Edward W. Morton - Teaneck NJ
Dorothy Rachko - Passaic NJ

Assignee:

Westinghouse Electric Corp. - Pittsburgh PA

International Classification:

G01J 350

US Classification:

356406

Abstract:

Method and apparatus for expressing as a number the relative brightness of artificial illumination as it is perceived by the average observer. There is extracted (i. e. , detected) from the illumination to be measured, a blue-appearing narrow band, a green-appearing narrow band, a yellow-appearing narrow band and a red-orange-appearing narrow band. From these extracted bands are generated six different signals: a signal expressed as (aB) where (a) is about 0. 23 and (B) is the watts of energy in the blue band, a signal expressed as (bG) where (b) is about 0. 97 and (G) is the watts of energy in the green band, a signal expressed as (cR) where (c) is about 0. 33 and (R) is the watts of energy in the red-orange band, a signal expressed as (dY) where (d) is about 0. 19 and (Y) is the watts of energy in the yellow band, a signal expressed as (eG) where (e) is about 0. 25 and (G) is the watts of energy in the green band, and a signal expressed as (fR) where (f) is about 0.

US Patent:

20160161429, Jun 9, 2016

Filed:

Mar 27, 2014

Appl. No.:

14/227076

Inventors:

- NEW YORK NY, US
Edward H. Chen - New York NY, US
Ophir Gaathon - New York NY, US

International Classification:

G01N 24/00
G01N 21/64

Abstract:

Techniques for deterministic switch microscopy include resolving at least one nitrogen vacancy center in a diamond structure. A magnetic field can be applied across the diamond structure and the nitrogen vacancy centers can be optically excited. The nitrogen vacancy centers can be switched from a dark state to a bright state or a bright state by a dark state by applying at least one microwave pulse. A fluorescent response of each nitrogen vacancy center can be detected and a nitrogen vacancy center can be resolved based on the fluorescent response of each nitrogen vacancy center as it corresponds to the orientation of the nitrogen vacancy center relative to the applied magnetic field.

US Patent:

20150317922, Nov 5, 2015

Filed:

May 22, 2015

Appl. No.:

14/720262

Inventors:

- Chicago IL, US
James Cuppini - West Chicago IL, US
Mark Joseph Cleaver - Chicago IL, US
Timothy Edward Canzano - Glen Ellyn IL, US
Edward Wayted Chen - Chicago IL, US
Elizabeth Marie Randgaard - Evanston IL, US
Chad Glenn Kirschner - West Dundee IL, US
Stephen Michael Oshgan - Des Plaines IL, US
Paresh Shroff - Palatine IL, US
Joseph Z. Wascow - Vernon Hills IL, US
Nicholas Patrick Jackson - Carol Stream IL, US
Brian Alan Retzke - Downers Grove IL, US
Daniel John Williams - Chciago IL, US

International Classification:

G09F 13/04
G09F 13/22

Abstract:

A physically-discrete sign component comprises an internally-electrically-illuminated alphabetic character having a front-facing profile and at least one connecting bar disposed at least substantially horizontally with respect to the front-facing profile of the alphabetic character and at least partially within the front-facing profile of that alphabetic character. By one approach the physically-discrete sign component includes two of the connecting bars. If desired, these two connecting bars are disposed at least substantially parallel to one another. By one approach, a first one of the connecting bars extends partially, but not wholly, above an upper periphery of the aforementioned front-facing profile while the second connecting bar extends partially, but not wholly, below a lower periphery of the front-facing profile. The connecting bars can include a connecting-bar interface configured to physically and electrically interconnect to an adjacent sign component.

US Patent:

20150040444, Feb 12, 2015

Filed:

Oct 29, 2014

Appl. No.:

14/527408

Inventors:

- Chicago IL, US
James Cuppini - West Chicago IL, US
Mark Joseph Cleaver - Chicago IL, US
Timothy Edward Canzano - Glen Ellyn IL, US
Edward Wayted Chen - Chicago IL, US
Elizabeth Marie Randgaard - Evanston IL, US
Chad Glenn Kirschner - West Dundee IL, US
Stephen Michael Oshgan - Des Plaines IL, US
Paresh Shroff - Palatine IL, US
Joseph Z. Wascow - Vernon Hills IL, US
Nicholas Patrick Jackson - Carol Stream IL, US
Brian Alan Retzke - Downers Grove IL, US
Daniel John Williams - Chciago IL, US

International Classification:

G09F 13/04

US Classification:

40541

Abstract:

A physically-discrete sign component comprises an internally-electrically-illuminated alphabetic character having a front-facing profile and at least one connecting bar disposed at least substantially horizontally with respect to the front-facing profile of the alphabetic character and at least partially within the front-facing profile of that alphabetic character. By one approach the physically-discrete sign component includes two of the connecting bars. If desired, these two connecting bars are disposed at least substantially parallel to one another. By one approach, a first one of the connecting bars extends partially, but not wholly, above an upper periphery of the aforementioned front-facing profile while the second connecting bar extends partially, but not wholly, below a lower periphery of the front-facing profile. The connecting bars can include a connecting-bar interface configured to physically and electrically interconnect to an adjacent sign component.

US Patent:

20140237871, Aug 28, 2014

Filed:

Aug 8, 2012

Appl. No.:

14/237243

Inventors:

Sean Edward Callahan - Elmhurst IL, US
Mark Joseph Cleaver - Chicago IL, US
James Cuppini - West Chicago IL, US
Timothy Edward Canzano - Glen Ellyn IL, US
Edward Wayted Chen - Chicago IL, US
Elizabeth Marie Randgaard - Evanston IL, US
Chad Glenn Kirschner - West Dundee IL, US
Stephen Michael Oshgan - Des Plaines IL, US
Paresh Shroff - Palatine IL, US
Joseph Z. Wascow - Vernon Hills IL, US
Nicholas Patrick Jackson - Carol Stream IL, US
Brian Alan Retzke - Downers Grove IL, US
Daniel John Williams - Chicago IL, US

International Classification:

G09F 13/04

US Classification:

40541

Abstract:

A physically-discrete sign component comprises an internally-electrically-illuminated alphabetic character having a front-facing profile and at least one connecting bar disposed at least substantially horizontally with respect to the front-facing profile of the alphabetic character and at least partially within the front-facing profile of that alphabetic character. By one approach the physically-discrete sign component includes two of the connecting bars. If desired, these two connecting bars are disposed at least substantially parallel to one another. By one approach, a first one of the connecting bars extends partially, but not wholly, above an upper periphery of the aforementioned front-facing profile while the second connecting bar extends partially, but not wholly, below a lower periphery of the front-facing profile. The connecting bars can include a connecting-bar interface configured to physically and electrically interconnect to an adjacent sign component.