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Cory S Modlin

from Redwood City, CA
Age ~58
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Also known as:
Cory Samuel Modlin, Cory Modin
Phone and address:
536 Iris St, Redwood City, CA 94062
(240) 274-7688
Related to:
Nicholas K UngerJason Michael Unger, 50Amanda N Modlin, 84Joseph D Brown, 83Clara E Modlin, 29Sheryl M Modlin, 54Barry Amanda Modlin, 87Jessie G Modlin, 29Rebecca F Brown, 81Stephanie A Brown, 57
Connected to:
Barbara A Modlin, 58Brad A Modlin, 42Clifford A Modlin, 67Cole D Modlin, 38Danny R Modlin, 48Dmitriy Modlin, 46Edward T Modlin, 62James E Modlin, 47Jessica N Modlin, 46John A Modlin, 46

Cory Modlin Phones & Addresses

  • 536 Iris St, Redwood City, CA 94062 (240) 274-7688
  • Washington, DC
  • 4129 Woodbine St, Chevy Chase, MD 20815 (301) 652-6789
  • Palo Alto, CA
  • 11123 Arroyo Dr, Rockville, MD 20852 (202) 285-8674
  • Tampa, FL
  • Saint Louis, MO

Work

Company: Facebook Sep 2016 Position: Wireless systems and software engineer

Education

Degree: Doctorates, Doctor of Philosophy School / High School: Stanford University

Skills

Digital Signal Processors • Lte • Wireless • Asic • Embedded Software • Soc • Embedded Systems • Debugging • Wimax • Digital Signal Processing • Dsl • System Architecture • Systems Engineering • Software Development • Device Drivers • Mobile Devices • Fpga • Signal Processing • Dsp Software • Digital Communications • Data Transfer • Asic Design • C • Matlab • Algorithms

Industries

Telecommunications

Resumes

Resumes

Cory Modlin Photo 1

Wireless Systems And Software Engineer

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Location:
San Francisco, CA
Industry:
Telecommunications
Work:
Facebook
Wireless Systems and Software Engineer
Santa Clara University Mar 2016 - Jun 2016
Adjunct Professor
Assia, Inc. Jul 2014 - May 2016
Dsp Engineering Manager
Headwater Partners Sep 2013 - Jul 2014
Technical Advisor
Texas Instruments Dec 1999 - Sep 2013
Software and Systems Manager and Senior Member Technical Staff
Education:
Stanford University
Doctorates, Doctor of Philosophy Washington University In St. Louis
Bachelors, Bachelor of Science In Electrical Engineering, Electrical Engineering
Skills:
Digital Signal Processors
Lte
Wireless
Asic
Embedded Software
Soc
Embedded Systems
Debugging
Wimax
Digital Signal Processing
Dsl
System Architecture
Systems Engineering
Software Development
Device Drivers
Mobile Devices
Fpga
Signal Processing
Dsp Software
Digital Communications
Data Transfer
Asic Design
C
Matlab
Algorithms

Publications

Us Patents

Generalized Precoder For The Upstream Voiceband Modem Channel

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US Patent:
6434190, Aug 13, 2002
Filed:
May 19, 2000
Appl. No.:
09/574206
Inventors:
Cory Samuel Modlin - Chevy Chase MD
Assignee:
Texas Instruments Incorporated - Dallas TX
International Classification:
H04L 2500
US Classification:
375222, 372242
Abstract:
For PCM upstream, the analog modem must transmit a filtered sequence of symbols so that the samples of the signal at the input to the codec at the central office (CO) are at a predetermined set of levels. This requires that the analog modem use an 8 kHz symbol rate synchronized to the CO clock. Typical telephone channels have nulls at DC and at 4 kHz. Therefore, for best performance, the signal transmitted by the analog modem should be spectrally shaped to match the channel. The present invention utilizes a generalized Laroia-Tretter-Farvardin (LTF) precoder similar to the one used in V. 34. This precoder structure allows spectral shaping and could also allow for constellation shaping gains. Using this precoder structure with spectral shaping has the potential to improve data rates by 3-3. 5 kbps.

Method And System For Accomodating A Wide Range Of User Data Rates In A Multicarrier Data Transmission System

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US Patent:
6480475, Nov 12, 2002
Filed:
Sep 14, 1998
Appl. No.:
09/152917
Inventors:
Cory S. Modlin - Palo Alto CA
Eugene Yuk-Yin Tang - San Jose CA
Po Tong - Los Altos CA
Jacky S. Chow - Gilroy CA
Assignee:
Texas Instruments Incorporated - Dallas TX
International Classification:
H04L 514
US Classification:
370294, 370470, 370479, 370506, 370516, 375260, 375362, 375371, 714701, 714752, 714774, 714776
Abstract:
Improved approaches to provide flexibility in setting user data rates and managing delay in data transmission systems using a superframe structure and Time Division Duplexing (TDD) are disclosed. These improved approaches operate to provide intelligent insertion of dummy words (bits or bites) into a data stream to be transmitted. By inserting the dummy words, the invention is able to render codewords, symbols and superframes independent from user data rates. As a result, a wide range of user data rates are available in data transmission systems using a superframe and TDD.

Constellation Design For Pcm Upstream Modulation

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US Patent:
7023927, Apr 4, 2006
Filed:
Apr 12, 2002
Appl. No.:
10/120507
Inventors:
Cory Samuel Modlin - Chevy Chase MD, US
Assignee:
Texas Instruments Incorporated - Dallas TX
International Classification:
H04B 14/04
US Classification:
375242, 375222, 375254, 341138
Abstract:
A method for constellation design in a telecommunications network using pulse code modulation to transmit data signals upstream between client and server voice-band modems. The invention selects a constellation for transmission over an analog channel of an equivalence class of data points using pulse code modulation based on the presence or absence of robbed bit signaling and interference from echo levels. The constellation is designed by determining noise in a PCM channel using a cumulative distribution function for echo, determining the extent of said noise for an array of possible constellation points, and selecting constellation points such that the largest negative noise of a first point remains above the largest positive noise level of a neighboring second point. Constellations are created off-line and stored for retrieval during modulation depending on the level of the echo.

Method For Selecting The Data Rate For Pcm Upstream Transmission

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US Patent:
7239664, Jul 3, 2007
Filed:
Dec 7, 2005
Appl. No.:
11/296789
Inventors:
Cory Samuel Modlin - Chevy Chase MD, US
Assignee:
Texas Instruments Incorporated - Dallas TX
International Classification:
H04B 14/04
US Classification:
375242, 375295
Abstract:
A method selects the data rate for pulse code modulation upstream transmission by determining an approximate transmit power before the upstream transmission reaches a transmit equalizer based on a recorder power output and a distance halfway between an outermost constellation point and a point following the outermost point. The determined approximate transmit power is multiplied by the power of the transmit equalizer to determine a post-equalizer transmit value. A data rate is selected which is less than a predetermined regulatory limit.

Pcm Upstream Data Transmission Server

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US Patent:
7321618, Jan 22, 2008
Filed:
Apr 9, 2002
Appl. No.:
10/118377
Inventors:
Cory Samuel Modlin - Chevy Chase MD, US
Assignee:
Texas Instruments Incorporated - Dallas TX
International Classification:
H03H 7/40
H03K 5/159
US Classification:
375229, 37524002, 37524029, 37524003, 37524004
Abstract:
A method for designing an equalizer and tracking performance for upstream PCM in a digital communications network is described. The invention optimizes upstream data rate rates for data transmissions in a network between a client modem a server modem. During training, the upstream channel impulse response is identified compensating for any robbed bit signalling. The upstream transmit equalizer is computed in closed form based on the identified channel. An equalizer in the receiver is also used to track timing and channel variations. The invention approximates bit error rate performance by looking for code violations in the trellis code decoder and tracking their frequency. The bit error rate is used to determine if the current modem parameters need to be re-designed.

Error Free Dynamic Rate Change In A Digital Subscriber Line Dsl With Constant Delay

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US Patent:
7457993, Nov 25, 2008
Filed:
Nov 16, 2005
Appl. No.:
11/274283
Inventors:
Cory S. Modlin - Chevy Chase MD, US
Assignee:
Texas Instruments Incorporated - Dallas TX
International Classification:
G06F 11/00
H03M 13/00
US Classification:
714701, 714755
Abstract:
A method for changing the data rate over an interleaved latency path overcomes shortfalls of the ADSL2 seamless rate adaptation (SRA) and dynamic rate repartitioning (DRR). The interleaver depth is allowed to change during either a rate charge or rate repartioning so that the interleaver delay is constant before and after the change. The transmitter pauses its transmission for a time approximately equal to the delay of the interleaver so that there are approximately no errors introduced at the receiver.

System And Method For Improving Bit-Loading In Discrete Multitone-Based Digital Subscriber Line Modems

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US Patent:
7646804, Jan 12, 2010
Filed:
Jan 3, 2005
Appl. No.:
11/028177
Inventors:
Cory S. Modlin - Chevy Chase MD, US
Assignee:
Texas Instruments Incorporated - Dallas TX
International Classification:
H04B 1/38
US Classification:
375222, 375260, 375219
Abstract:
A system and method for improving bit-loading in discrete multitone (DMT)-based digital subscriber line (DSL) modems. In one embodiment, the system includes: (1) a model generator configured to generate a model containing a calculated total bit loading for an assumed gross coding gain and estimated total bit loadings for a other plurality of assumed gross coding gains and (2) a bit loader associated with the model generator and configured to load bits in accordance with the model.

Orthogonal Frequency Division Multiplexing Access (Ofdma) Ranging

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US Patent:
7675888, Mar 9, 2010
Filed:
Sep 13, 2006
Appl. No.:
11/531586
Inventors:
Cory S. Modlin - Chevy Chase MD, US
Tarik Muharemovic - Dallas TX, US
Assignee:
Texas Instruments Incorporated - Dallas TX
International Classification:
H04B 7/216
H04W 4/00
H04B 7/208
H04J 11/00
US Classification:
370335, 370332, 370344, 370210
Abstract:
A method for Orthogonal Frequency Division Multiplexing Access (OFDMA) ranging is provided. The method includes receiving a signal having OFDMA symbols. An FFT is performed on this signal. Matching ranging codes are found. The power for a given hypothesized ranging code is determined and compared to a power threshold to determine if the code was transmitted. The timing offset and power are reported as the result of ranging.
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Cory S Modlin from Redwood City, CA, age ~58 Get Report