Feng Chen

US Patent:

D634248, Mar 15, 2011

Filed:

Feb 12, 2010

Appl. No.:

29/355777

Inventors:

Feng Li Chen - Alhambra CA, US

International Classification:

1216

US Classification:

D12177

US Patent:

20130043119, Feb 21, 2013

Filed:

Aug 17, 2012

Appl. No.:

13/588941

Inventors:

Yashen Xia - Newton MA, US
Feng Chen - Belmont MA, US

International Classification:

B01J 19/08

US Classification:

204165, 42218604, 42218603

Abstract:

Provided are electronegative-ion-aided methods and apparatus to achieve reduction of carbon dioxide gas into useful products. In one embodiment, using different methods of discharge, the electronegative gases forms non-equilibrium electronegative ions, so that carbon dioxide reduction occurs for the production of organic compounds. When carbon dioxide is introduced into the container containing at least one electronegative gas, such as water, ammonia, bromine or iodine vapor, it reacts to form organic compounds, such as ethanol, methanol, and oxalic acid in the case of water, urea in the case of ammonia, and tetraiodomethane in the case of iodine.

US Patent:

20130294377, Nov 7, 2013

Filed:

Jul 2, 2013

Appl. No.:

13/933510

Inventors:

Jonathan S. Min - Fullerton CA, US
Lisa V. Denney - Suwanee GA, US
Henry Samueli - Corona del Mar CA, US
Sean F. Nazareth - Irvine CA, US
Feng Chen - Irvine CA, US
Fang Lu - Rowland Heights CA, US
Christopher R. Jones - Newport Beach CA, US

International Classification:

H04W 72/08

US Classification:

370329

Abstract:

A number of features for enhancing the performance of a communication system, in which data is transmitted between a base station and a plurality of subscriber stations located different distances from the base station, are presented. The power transmission level, slot timing, and equalization of the subscriber stations are set by a ranging process. Data is transmitted by the subscriber stations in fragmented form. Various measures are taken to make transmission from the subscriber stations robust. The uplink data transmission is controlled to permit multiple access from the subscriber stations.

US Patent:

58259309, Oct 20, 1998

Filed:

Mar 5, 1997

Appl. No.:

8/811189

Inventors:

Dong-seek Park - Daegu, KR
John Villasenor - Los Angeles CA
Feng Chen - Los Angeles CA

Assignee:

Samsung Electronics Co., Ltd. - Kyungki-Do
The Regents of the University of California - Oakland CA

International Classification:

G06K 936

US Classification:

382236

Abstract:

A motion estimating method for determining a motion vector, using a bit rate-distortion technique in image compression. The motion estimating method includes the steps of obtaining a motion vector (x. sub. o, y. sub. o) which minimizes a predetermined error function, assuming a preferred motion vector (x, y), calculating the difference (x-diff, y-diff) between (x. sub. o, y. sub. o) and (x, y), obtaining the number of bits needed to encode the x-diff and y-diff, determining a bias based on a bias model according to the bit number, obtaining a final cost function value based on the difference between a cost function value and a bias, comparing the final cost function value with a predetermined allowance limit, determining the assumed motion vector (x, y) as a motion vector for a current macroblock and updating the allowance limit by using the cost function value, if the cost function value is smaller than the predetermined allowance limit and discarding the assumed motion vector (x, y) if the cost function value is not smaller than the predetermined allowance limit. The disclosed method is successful in increasing the compression rate.

US Patent:

51149052, May 19, 1992

Filed:

Mar 8, 1990

Appl. No.:

7/490752

Inventors:

Bill C. Giessen - Cambridge MA
Robert S. Markiewicz - Lexington MA
Feng Chen - Boston MA

Assignee:

Northeastern University - Boston MA

International Classification:

H01L 3912
B06B 102

US Classification:

505 1

Abstract:

A method of processing polycrystalline material by performing multi-axis crystal alignment utilizing anisotropies in the crystalline structure including the step of providing a polycrystalline material in a fluid suspension or malleable form having a magnetic moment. An external force to which the material is reactive is applied to align the individual crystals along a first axis. A magnetic field is applied to orient the magnetic moment of the crystals along a second axis, transverse to the first axis. The crystalline material may have a magnetic moment associated with a rare earth element of the material.

US Patent:

20160164745, Jun 9, 2016

Filed:

Jan 29, 2016

Appl. No.:

15/011193

Inventors:

- Irvine CA, US
Jonathan S. Min - Newport Coast CA, US
Lisa V. Denney - Suwanee GA, US
Henry Samueli - Corona Del Mar CA, US
Sean F. Nazareth - Irvine CA, US
Feng Chen - Irvine CA, US
Fang Lu - Rowland Heights CA, US
Christopher R. Jones - Los Angeles CA, US

Assignee:

Broadcom Corporation - Irvine CA

International Classification:

H04L 12/24
H04L 25/03
H04L 5/00
H04L 12/28
H04L 1/00
H04B 1/10

Abstract:

A number of features for enhancing the performance of a communication system, in which data is transmitted between a base station and a plurality of subscriber stations located different distances from the base station, are presented. The power transmission level, slot timing, and equalization of the subscriber stations are set by a ranging process. Data is transmitted by the subscriber stations in fragmented form. Various measures are taken to make transmission from the subscriber stations robust. The uplink data transmission is controlled to permit multiple access from the subscriber stations.