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Ronald H Chang

from Las Vegas, NV
Deceased
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Related to:
Victor W Cheng, 67Maria K Cheng, 60Stefanie Yu, 58Edward Yu, 58Chin K Chung, 84Conrad Chang, 54
Connected to:
Aeron Chang, 45Alma L Chang, 58Andrew H Chang, 52Anna Chang, 64Ariene J Chang, 47Arleta Chang, 60Barbie S Chang, 39Belinda Chang, 49Benny C Chang, 76Bing T Chang, 74

Ronald Chang Phones & Addresses

  • Las Vegas, NV
  • Parsippany, NJ
  • Millbrae, CA
  • New York, NY
  • Panorama City, CA
  • Madison, WI

Work

Company: Nyc department of information technology and telecommunications - New York, NY Jun 2013 Position: Infrastructure management intern

Education

School / High School: Carnegie Mellon University- Pittsburgh, PA 2013 Specialities: M.S. in Information Security Policy and Management

Skills

Wireshark • OSSEC via Splunk • Snort/BASE • Nagios • NTOP • Palantir; Python • HTML5; Linux • Windows PowerShell; Excel • Access • PowerPoint • Word; Cantonese and Mandarin Chinese

Resumes

Resumes

Ronald Chang Photo 1

Ronald Chang

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Ronald Chang Photo 2

Ronald Chang

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Ronald Chang Photo 3

Ronald Chang

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Location:
United States
Ronald Chang Photo 4

Ronald Chang Pittsburgh, PA

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Work:
NYC Department of Information Technology and Telecommunications
New York, NY
Jun 2013 to Aug 2013
Infrastructure Management Intern
Office of U.S. Senator Charles E. Schumer
New York, NY
Jan 2013 to May 2013
Press Aide
Council on Foreign Relations
Washington, DC
Sep 2011 to Dec 2011
Research Intern
U.S. Department of State, Beijing Embassy

Jun 2011 to Aug 2011
Information Office Intern
Business Environment Council
Hong Kong
Sep 2010 to Dec 2010
Corporate Sustainability Intern
Education:
Carnegie Mellon University
Pittsburgh, PA
2013 to 2015
M.S. in Information Security Policy and Management
Syracuse University
Syracuse, NY
2008 to 2012
B.A. in International Relations and Policy Studies
Skills:
Wireshark, OSSEC via Splunk, Snort/BASE, Nagios, NTOP, Palantir; Python, HTML5; Linux, Windows PowerShell; Excel, Access, PowerPoint, Word; Cantonese and Mandarin Chinese

Business Records

Name / Title
Company / Classification
Phones & Addresses
Ronald M. Chang
Owner
Sports Traders
Host Ventures Inc
Sporting Goods-Retail. Sporting Goods-Rental
22580 Lougheed Hwy, Maple Ridge, BC V2X 2V1
(604) 467-6818, (604) 467-1278
Ronald Chang
President
Acer Technology Ventures
Investors
5201 Great America Pkwy # 270, Santa Clara, CA 95054
Website: acervc.com,
Ronald M. Chang
Owner
Sports Traders
Sporting Goods-Retail · Sporting Goods-Rental
(604) 467-6818, (604) 467-1278
Ronald Chang
President
Acer Technology Ventures
Misc Intermediation · Venture Capital Companies
5201 Great America Pkwy STE 270, Santa Clara, CA 95054
(408) 654-9971, (408) 894-7939, (408) 894-7900
Ronald Chang
Owner
Chang & Associates Architectural
Architectural Services
10343 Caribou Ln, Los Angeles, CA 90077
(310) 475-5288
Ronald Chang
Principal
R C Construction Ltd
General Contractor
98 Burnham Dr, Perth Amboy, NJ 08863
Ronald Chang
Ronald Chang Architecture
Architect
1116 N Beverly Gln Blvd, Los Angeles, CA 90077
(310) 709-3805
Ronald Chang
President
NUTRAPOWER, INC
104 Clipper Dr, Belmont, CA 94002
Ronald Chang
President
Acer Technology Ventures
Investors
5201 Great America Pkwy # 270, Santa Clara, CA 95054
Website: acervc.com,

Publications

Us Patents

Programmable Power Consumption Pipeline Analog-To-Digital Converter With Variable Resolution

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US Patent:
6340944, Jan 22, 2002
Filed:
Aug 21, 2000
Appl. No.:
09/643385
Inventors:
Ronald Chang - Fremont CA
Jose A. Salcedo - Livermore CA
Raphael Horton - Pleasanton CA
Assignee:
Exar Corporation - Fremont CA
International Classification:
H03M 144
US Classification:
341161, 341163
Abstract:
An analog-to-digital converter which has a low resolution and high resolution mode. In response to the low resolution mode signal, a switching circuit selects only certain of the digital bit outputs. In one embodiment, the analog-to-digital converter is a pipelined circuit with a number of stages. In response to the low resolution mode, a number of the stages are bypassed, so that only the needed stages for the smaller number of bits are used. The stages that are bypassed are preferably powered down, but not completely. By maintaining a small amount of bias current to the bypassed stages, they can quickly respond when a switch is made back to full resolution mode.

Multi-Channel Optical Detection System

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US Patent:
6369893, Apr 9, 2002
Filed:
May 19, 1999
Appl. No.:
09/314605
Inventors:
Lee A. Christel - Palo Alto CA
M. Allen Northrup - Berkeley CA
Kurt E. Petersen - San Jose CA
William A. McMillan - Cupertino CA
Gregory T. A. Kovacs - Stanford CA
Steven J. Young - Los Gatos CA
Ronald Chang - Redwood City CA
Douglas B. Dority - Mill Valley CA
Raymond T. Hebert - Los Gatos CA
Gregory J. Kintz - Mountain View CA
Assignee:
Cepheid - Sunnyvale CA
International Classification:
G01N 2164
US Classification:
356417, 2504581, 422 8208, 436172
Abstract:
An apparatus for thermally controlling and optically interrogating a reaction mixture includes a vessel [ ] having a chamber [ ] for holding the mixture. The apparatus also includes a heat-exchanging module [ ] having a pair of opposing thermal plates [ A, B] for receiving the vessel [ ] between them and for heating/and or cooling the mixture contained in the vessel. The module [ ] also includes optical excitation and detection assemblies [ ] positioned to optically interrogate the mixture. The excitation assembly [ ] includes multiple light sources [ ] and a set of filters for sequentially illuminating labeled analytes in the mixture with excitation beams in multiple excitation wavelength ranges. The detection assembly [ ] includes multiple detectors [ ] and a second set of filters for detecting light emitted from the chamber [ ] in multiple emission wavelength ranges. The optics assemblies [ ] thus provide a multi-channel system for detecting a plurality of different target analytes in the mixture.

Apparatus For Analyzing A Fluid Sample

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US Patent:
6391541, May 21, 2002
Filed:
May 30, 2000
Appl. No.:
09/583807
Inventors:
Kurt E. Petersen - Santa Jose CA, 95054
Michael T. Taylor - Newark CA, 94560
Farzad Pourahmadi - Fremont CA, 94539
William A. McMillan - Cupertino CA, 95014
Ronald Chang - Redwood City CA, 94063
Stanley H. Sakai - Cupertino CA, 95014
Jesus Ching - Santa Clara CA, 95054
Douglas B. Dority - Mill Valley CA, 94941
Phillip Belgrader - Manteca CA, 94336
M. Allen Northrup - Berkeley CA, 94708
International Classification:
G01N 3353
US Classification:
435 5, 435 72, 435 721, 435259, 4352871, 4352872, 4352882, 435810, 436164, 436165, 436514, 436518, 436526, 436527, 436805, 436806, 436807, 436809, 436829, 422 58, 422 56, 241 2
Abstract:
A cartridge for separating a desired analyte from a fluid sample has a sample flow path and a lysing chamber in the sample flow path. The lysing chamber contains at least one filter for capturing cells or viruses from the sample as the sample flows through the lysing chamber. Beads are also disposed in the lysing chamber for rupturing the cells or viruses to release the analyte therefrom. An analyte flow path extends from the lysing chamber and diverges from the sample flow path. The analyte flow path preferably leads to a reaction chamber for chemically reacting and optically detecting the analyte. The cartridge also includes at least one flow controller (e. g. , valves) for directing the sample into the waste chamber after the sample flows through the lysing chamber and for directing the analyte separated from the sample into the analyte flow path.

Reaction Vessel And Temperature Control System

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US Patent:
6403037, Jun 11, 2002
Filed:
Feb 4, 2000
Appl. No.:
09/497848
Inventors:
Ronald Chang - Redwood City CA
Douglas B. Dority - Mill Valley CA
Lee A. Christel - Palo Alto CA
Kurt E. Petersen - San Jose CA
Assignee:
Cepheid - Sunnyvale CA
International Classification:
G01N 1506
US Classification:
422 681, 422 58, 422100, 422 63, 422102, 422 8205, 422 8212, 436180, 436172, 4352887, 4352885, 356340, 250238
Abstract:
The invention provides a reaction vessel and temperature control system for performing heat-exchanging chemical reactions, such as nucleic acid amplification. The vessel has a body defining a reaction chamber, and a loading structure extending from the body for loading a sample into the chamber. The loading structure has a loading reservoir, an aspiration port, and respective fluid channels connecting the loading reservoir and aspiration port to the chamber. To load the sample into the vessel, the sample is first dispensed into the loading reservoir and then drawn into the chamber by application of a vacuum to the aspiration port. The vessel also includes a seal aperture extending over the outer ends of the loading reservoir and aspiration port. A plug is inserted into the aperture after loading the sample into the chamber to simultaneously seal the chamber, loading reservoir, and aspiration port from the external environment. The temperature of the sample is controlled by opposing plates positioned to contact opposite sides of the vessel.

Apparatus And Method For Rapid Ultrasonic Disruption Of Cells Or Viruses

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US Patent:
6431476, Aug 13, 2002
Filed:
Dec 21, 1999
Appl. No.:
09/469724
Inventors:
Michael T. Taylor - Newark CA
Phillip Belgrader - Manteca CA
Farzad Pourahmadi - Fremont CA
William A. McMillan - Cupertino CA
Ronald Chang - Redwood City CA
Douglas B. Dority - Mill Valley CA
Assignee:
Cepheid - Sunnyvale CA
International Classification:
B02C 1900
US Classification:
241 1, 241 2, 241301
Abstract:
The present invention provides an apparatus and method for disrupting cells or viruses to release the nucleic acid therefrom. The apparatus includes a container having a chamber for holding the cells or viruses. The apparatus also includes an ultrasonic transducer for contacting a wall of the chamber and for transmitting ultrasonic energy into the chamber through the wall. A support structure holds the container and the transducer against each other such that the transducer contacts the wall of the chamber. The support structure includes an elastic body, such as a spring, for applying to the container or to the transducer a substantially constant force to press together the transducer and the wall. The chamber also preferably contains beads for enhancing the disruption of the cells or viruses. The apparatus performs rapid and consistent lysis of cells or viruses, often in as little time as 5 to 10 seconds.

Integrated Fluid Manipulation Cartridge

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US Patent:
6440725, Aug 27, 2002
Filed:
Jun 25, 1999
Appl. No.:
09/331911
Inventors:
Farzad Pourahmadi - Fremont CA
William A. McMillan - Cupertino CA
Jesus Ching - Santa Clara CA
Ronald Chang - Redwood City CA
Lee A. Christel - Palo Alto CA
Gregory T. A. Kovacs - Stanford CA
M. Allen Northrup - Berkeley CA
Kurt E. Petersen - San Jose CA
Assignee:
Cepheid - Sunnyvale CA
International Classification:
C12M 134
US Classification:
4352885, 4352872, 4352886, 4353061, 4352865, 422 681, 422100, 422101, 422102
Abstract:
A cartridge ( ) for separating a desired analyte from a fluid sample includes a sample port ( ) and a sample flow path extending from the port through the body of the cartridge. The sample flow path includes at least one flow-through component ( ), e. g. , filter paper or a microfabricated chip, for capturing the desired analyte from the sample as the sample flows through the cartridge. The cartridge also includes an elution flow path for carrying elution fluid through the component ( ) to release captured analyte from the component into the elution fluid. The elution flow path diverges from the sample flow path after passing through the component ( ). Flow controllers ( A) and ( B) direct the remaining fluid sample into a waste chamber ( ) after the sample flows through the component ( ) and direct the elution fluid and eluted analyte into a reagent chamber ( ) and reaction chamber ( ). The continuous-flow design of the cartridge permits the rapid processing of a fluid sample that is larger in volume than any interactive region within the cartridge, allowing increased sensitivity in the detection of low copy concentrations of analytes, such as nucleic acid.

Heat Exchanging, Optically Interrogated Chemical Reaction Assembly

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US Patent:
6565815, May 20, 2003
Filed:
Jul 25, 2000
Appl. No.:
09/194374
Inventors:
Ronald Chang - Redwood City CA
Lee A. Christel - Palo Alto CA
Gregory T. A. Kovacs - Stanford CA
William A. McMillan - Cupertino CA
M. Allen Northrup - Berkeley CA
Kurt E. Petersen - Santa Clara CA
Farzad Pourahmadi - Fremont CA
Steven J. Young - Los Gatos CA
Robert Yuan - Belmont CA
Douglas B. Dority - Mill Valley CA
Assignee:
Cepheid - Sunnyvale CA
International Classification:
F28D 700
US Classification:
422198, 422100, 422 58, 422 681, 422 8205, 422102, 4352887, 4353031, 356246, 356340, 356442, 250238
Abstract:
The present invention provides a reaction vessel and apparatus for performing heat-exchanging reactions. The vessel has a chamber for holding a sample, the chamber being defined by a plurality of walls, at least two of the walls being light transmissive to provide optical windows to the chamber. The apparatus comprises at least one heating surface for contacting at least one of the plurality of walls, a heat source for heating the surface, and optics positioned to optically interrogate the chamber while the heating surface is in contact with at least one of the plurality of walls. The optics include at least one light source for transmitting light to the chamber through a first one of the light transmissive walls and at least one detector for detecting light exiting the chamber through a second one of the light transmissive walls.

Apparatus For Performing Heat-Exchanging, Chemical Reactions

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US Patent:
6660228, Dec 9, 2003
Filed:
Dec 21, 1999
Appl. No.:
09/468690
Inventors:
Ronald Chang - Redwood City CA
Douglas B. Dority - Mill Valley CA
Lee A. Christel - Palo Alto CA
Robert Yuan - Belmont CA
Kurt E. Petersen - San Jose CA
Assignee:
Cepheid - Sunnyvale CA
International Classification:
B01L 300
US Classification:
422 681, 422 8205, 422102, 356246
Abstract:
The present invention provides an apparatus for performing heat-exchanging chemical reactions, such as nucleic acid amplification. The apparatus includes a reaction vessel having a chamber for holding a sample for chemical reaction and optical detection. The vessel has a rigid frame defining the side walls of the chamber, and flexible sheets attached to opposite sides of the frame to form opposing major walls of the chamber. The frame further includes a port and a channel connecting the port to the chamber. The temperature of the sample is controlled by opposing plates positioned to receive the chamber of the vessel between them. The apparatus also includes a plunger which is inserted into the channel of the vessel to seal the port and increase pressure in the chamber. The increased pressure forces the flexible major walls of the chamber to contact and conform to the surfaces of the plates, thus ensuring optimal thermal conductance between the plates and the chamber. The apparatus also includes thermal elements for heating or cooling the plates, as well as optics for detecting analytes in the sample.
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Ronald H Chang from Las Vegas, NVDeceased Get Report