SCOTT RICHARD VELAZQUEZ
Pilots at El Presidio Trl, San Diego, CA
License number
California A4993204
Issued Date
Feb 2016
Expiration Date
Feb 2018
Category
Airmen
Type
Authorized Aircraft Instructor
Address
Address
13460 El Presidio Trl, San Diego, CA 92130
Personal information
See more information about SCOTT RICHARD VELAZQUEZ at radaris.comName
Address
Phone
13460 El Presidio Trl, San Diego, CA 92130
6095 Wooddale Row, La Jolla, CA 92037
8953 Newcastle Ave, Hesperia, CA 92344
6095 Wooddale Row, La Jolla, CA 92037
7447 Capstan Dr, Carlsbad, CA 92011
Professional information
See more information about SCOTT RICHARD VELAZQUEZ at trustoria.com
President At V Corp Technologies, Inc.
President At V Corp Technologies, Inc.
Position:
President at V Corp Technologies, Inc.
Location:
Greater San Diego Area
Industry:
Telecommunications
Work:
V Corp Technologies, Inc.
since Jun 1997
-
President
Education:
Massachusetts Institute of Technology 1994 - 1997
Ph.D., Electrical Engineering and Computer Science Massachusetts Institute of Technology 1994 - 1996
EE, Electrical Engineering and Computer Science Massachusetts Institute of Technology 1993 - 1994
MS, Electrical Engineering and Computer Science Massachusetts Institute of Technology 1989 - 1993
BS, Electrical Engineering and Computer Science
Ph.D., Electrical Engineering and Computer Science Massachusetts Institute of Technology 1994 - 1996
EE, Electrical Engineering and Computer Science Massachusetts Institute of Technology 1993 - 1994
MS, Electrical Engineering and Computer Science Massachusetts Institute of Technology 1989 - 1993
BS, Electrical Engineering and Computer Science
Amplifier Linearizer
Amplifier Linearizer
US Patent:
7940198, May 10, 2011
Filed:
Jun 16, 2010
Appl. No.:
12/817075
Inventors:
Scott R. Velazquez - San Diego CA, US
Assignee:
V Corp Technologies, Inc. - San Diego CA
International Classification:
H03M 1/10
US Classification:
341118, 381 59, 455126, 330149, 375257
Abstract:
The present invention provides an advanced adaptive predistortion linearization technique to dramatically reduce nonlinear distortion in power amplifiers over a very wide instantaneous bandwidth (up to 2 GHz) and over a wide range of amplifier types, input frequencies, signal types, amplitudes, temperature, and other environmental and signal conditions. In an embodiment of the invention, the predistortion linearization circuitry comprises (1) a higher-order polynomial model of an amplifier's gain and phase characteristics—higher than a third-order polynomial model; (2) an adaptive calibration technique; and (3) a heuristic calibration technique. The higher-order polynomial model is generated by introducing, for example, a plurality of multi-tone test signals with varying center frequency and spacing into the power amplifier. From the power amplifier's corresponding output, the nonlinearities are modeled by employing a higher-order curve fit to capture the irregularities in the nonlinear transfer function. Different distortion transfer functions can be implemented for different operating conditions.
Adaptive Digital Receiver
Adaptive Digital Receiver
US Patent:
8582694, Nov 12, 2013
Filed:
Apr 24, 2012
Appl. No.:
13/455071
Inventors:
Scott R. Velazquez - San Diego CA, US
Rich J. Velazquez - La Jolla CA, US
Rich J. Velazquez - La Jolla CA, US
International Classification:
H04L 27/06
US Classification:
375340, 375260, 375240, 375146, 375346, 375 E1002, 342377, 342383, 455 59, 455296, 330151
Abstract:
The present invention provides a high-performance adaptive digital receiver with adaptive background control that optimizes the performance in rapidly changing signal environments and provides 3. 6 GH; instantaneous bandwidth, SFDR>90 dB, SNR=66 dB, with dynamic digital channelization. The receiver takes advantage of several levels of adaptivity that conventional approaches do not offer. In addition to a dynamic digital channelizer that is adaptively tuned based on detected signals, the present invention employs a powerful software reconfigurable digitizer that is adaptively optimized for the current signal environment to control important receiver parameters such as bandwidth, dynamic range, resolution, and sensitivity.
Mismatch Compensators And Methods For Mismatch Compensation
Mismatch Compensators And Methods For Mismatch Compensation
US Patent:
8164496, Apr 24, 2012
Filed:
Oct 20, 2010
Appl. No.:
12/908783
Inventors:
Scott R. Velazquez - San Diego CA, US
International Classification:
H03M 1/06
US Classification:
341118, 455295, 455303, 324603, 375346, 375226
Abstract:
In a compensator for compensating mismatches, and in methods for such compensation, the compensator compensates for mismatches in output signals of a system with mismatches during normal operation of the system with mismatches. The compensator comprises: a mismatch estimator that monitors at least two mismatched signals output by the system with mismatches during normal operation and that generates matching parameters indicating an amount of mismatch between the at least two mismatched signals, the mismatch estimator updating the matching parameters during normal operation of the system with mismatches, and a mismatch equalizer that compensates mismatches in the mismatched signals output by the system with mismatches during normal operation of the system with mismatches in response to the matching parameters.
Linearizer
Linearizer
US Patent:
8085175, Dec 27, 2011
Filed:
Apr 4, 2011
Appl. No.:
13/079293
Inventors:
Scott R. Velazquez - San Diego CA, US
Assignee:
V Corp Technologies, Inc. - San Diego CA
International Classification:
H03M 1/06
US Classification:
341118, 381 59, 375233, 330110, 455126
Abstract:
The present invention provides an advanced adaptive predistortion linearization technique to dramatically reduce nonlinear distortion in power amplifiers over a very wide instantaneous bandwidth (up to 2 GHz) and over a wide range of amplifier types, input frequencies, signal types, amplitudes, temperature, and other environmental and signal conditions. In an embodiment of the invention, the predistortion linearization circuitry comprises (1) a higher-order polynomial model of an amplifier's gain and phase characteristics—higher than a third-order polynomial model; (2) an adaptive calibration technique; and (3) a heuristic calibration technique. The higher-order polynomial model is generated by introducing, for example, a plurality of multi-tone test signals with varying center frequency and spacing into the power amplifier. From the power amplifier's corresponding output, the nonlinearities are modeled by employing a higher-order curve fit to capture the irregularities in the nonlinear transfer function. Different distortion transfer functions can be implemented for different operating conditions.