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Gregory J Flewelling

from Presque Isle, ME
Age ~62
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Also known as:
Gregory F Flewelling, Greg Flewelling, Gregory J Flewlling, Gregory Flewell, Gregory I
Related to:
Greg Flewelling
Connected to:
Aaron D Flewellen, 40Akio J Flewelling, 42Annie Flewelling, 41Bryant Flewelling, 33Cassandra M Flewellen, 32Cathie L Flewellen, 71Craig A Flewell, 64Daniel T Flewelling, 44Harry J Flewelling, 107Ian D Flewelling, 55

Gregory Flewelling Phones & Addresses

  • Presque Isle, ME
  • 4618 Emory Ln, Charlotte, NC 28211 (704) 364-1720
  • 518 Clarice Ave, Charlotte, NC 28204 (704) 364-1720
  • 10213 Summer House Ct, Charlotte, NC 28210 (704) 544-8551
  • 518 Mcdowell St, Charlotte, NC 28204 (704) 544-8551
  • 7 Gristone Rd, Chelmsford, MA 01824
  • Arlington, MA
  • Boxborough, MA
  • 4618 Emory Ln, Charlotte, NC 28211

Education

Degree: High school graduate or higher

Emails

g***[email protected]

Industries

Marketing and Advertising

Resumes

Resumes

Gregory Flewelling Photo 1

Cheese Finder And Optimizer At Mouse And Man

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Location:
Charlotte, North Carolina Area
Industry:
Marketing and Advertising

Publications

Us Patents

Transimpedance Amplifier Input Stage Mixer

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US Patent:
8089309, Jan 3, 2012
Filed:
Jun 26, 2009
Appl. No.:
12/492682
Inventors:
Douglas S. Jansen - Pelham NH, US
Gregory M. Flewelling - Bedford NH, US
Assignee:
BAE Systems Information and Electronic Systems Integration Inc. - Nashua NH
International Classification:
G06G 7/12
US Classification:
327359, 327357, 455326
Abstract:
A Gilbert cell mixer design is disclosed. Instead of using a differential transconductance stage as typically done, the design employs a differential transimpedance amplifier input stage. By utilizing a transimpedance input stage to the Gilbert mixer, feedback is used to obtain higher linearity without sacrificing noise performance. The transimpedance input stage supplies a current signal to the cascode connected Gilbert switching quad, so the transimpedance amplifier output is taken from the collector of the transimpedance amplifier output transistor, instead of the emitter as normally done with transimpedance amplifiers.

Thermometer Coded Attenuator

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US Patent:
8130056, Mar 6, 2012
Filed:
Feb 14, 2011
Appl. No.:
13/026349
Inventors:
Douglas S. Jansen - Pelham NH, US
Gregory M. Flewelling - Merrimack NH, US
International Classification:
H03G 3/20
US Classification:
333 81R, 327308
Abstract:
Techniques are disclosed that allow for programmable attenuation using thermometer code steps. By thermometer coding the attenuator structure, monotonicity is guaranteed or otherwise greatly improved, which eliminates instability problems with automatic gain control loops and without the need for compensation or trimming. In addition, the thermometer coding technique also greatly reduces phase discontinuity between adjacent gain states.

Differential Switch With Off-State Isolation Enhancement

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US Patent:
8179186, May 15, 2012
Filed:
Aug 4, 2009
Appl. No.:
12/535596
Inventors:
Gregory M. Flewelling - Merrimack NH, US
Douglas S. Jansen - Pelham NH, US
Assignee:
BAE Systems Information and Electronic Systems Integration Inc. - Nashua NH
International Classification:
H03K 17/16
H03K 17/60
US Classification:
327379, 327365, 327478, 327482, 330252
Abstract:
Techniques are disclosed for reducing off-state leakage current in a differential switching device. The techniques can be embodied, for example, in a method that includes receiving a differential input signal at a differential input of each of a primary switch and a dummy switch. In an enabled-state of the device, the method further includes passing the differential input signal to a differential output of the primary switch. In a disabled-state of the device, the method further includes canceling off-state leakage current at the differential output of the primary switch, by virtue of the dummy switch having its differential output reverse-coupled to the differential output of the primary switch. The method may further include preventing the dummy switch from passing signals other than off-state leakage signals. The techniques can be embodied, for instance, in a switching device.

Temperature Compensated Feedforward Linearizer

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US Patent:
8514020, Aug 20, 2013
Filed:
Aug 29, 2011
Appl. No.:
13/220339
Inventors:
Gregory M. Flewelling - Merrimack NH, US
Assignee:
BAE Systems Information and Electronic Systems Integration Inc. - Nashua NH
International Classification:
H03F 1/00
H03F 3/04
US Classification:
330151, 330289
Abstract:
A feedforward linearizer device is disclosed. The device includes a main amplifier, and a linearizing amplifier operatively coupled to the main amplifier. A first reference generator is operatively coupled to the main amplifier by a first reference node. A second reference generator is operatively coupled to the linearizing amplifier by a second reference node, and is configured to cause an optimal linearizing amplifier output current for each of a plurality of temperatures. In one such case, the second reference generator is configured to cause an optimal linearizing amplifier output current for each of a plurality of temperatures based on a corresponding optimal ratio of main amplifier output current and linearizing amplifier output current. The linearizing amplifier may be configured with a tunable current source that is controlled by the second reference generator, or a current source having a fixed total transistor area (not tunable).

Thermometer Coded Attenuator

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US Patent:
20100327998, Dec 30, 2010
Filed:
Jun 26, 2009
Appl. No.:
12/492689
Inventors:
Douglas S. Jansen - Pelham NH, US
Gregory M. Flewelling - Bedford NH, US
Assignee:
BAE SYSTEMS Information and Electronic Systems Intergration Inc. - Nashua NH
International Classification:
H01P 1/22
US Classification:
333 81 R
Abstract:
Techniques are disclosed that allow for programmable attenuation using thermometer code steps. By thermometer coding the attenuator structure, monotonicity is guaranteed or otherwise greatly improved, which eliminates instability problems with automatic gain control loops and without the need for compensation or trimming. In addition, the thermometer coding technique also greatly reduces phase discontinuity between adjacent gain states.

Dynamic Range On-Demand For Receiver Applications

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US Patent:
20110053541, Mar 3, 2011
Filed:
Aug 26, 2009
Appl. No.:
12/548249
Inventors:
Douglas S. Jansen - Pelham NH, US
Gregory M. Flewelling - Merrimack NH, US
Assignee:
BAE SYSTEMS Informantion and Electronic Systems Integration Inc. - Nashua NH
International Classification:
H04B 1/06
US Classification:
4552341
Abstract:
Receiver power techniques are disclosed that allow for real-time adjustment of receiver dynamic range by virtue of supplied DC power, based on signal strengths currently received by the receiver. The disclosed techniques use real-time monitoring of receiver output to detect the presence of large signals, and to then adjust bias points in the receiver to reduce DC power consumption in the absence of large signals. By adapting the power to the current signal environment by autonomously adjusting the bias points, the mean power consumption of the receiver can be greatly reduced. This in turn has a number of benefits, such as increased battery life, decreased heat, increased circuit lifetime, and decreased noise figure.

Built-In Self-Test For Radio Frequency Systems

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US Patent:
20130049780, Feb 28, 2013
Filed:
Aug 29, 2011
Appl. No.:
13/220154
Inventors:
Gregory M. Flewelling - Merrimack NH, US
Assignee:
BAE SYSTEMS Information and Electonic Systems Integration Inc. - Nashua NH
International Classification:
G01R 31/28
US Classification:
3247503
Abstract:
Techniques for performing built-in self-test (BIST) of performance of an RF system are disclosed. The techniques may be used, for example, for measuring distortion generated by the RF system under test, detecting faults in the system, determining calibration of the system, and/or assisting in compensating analog circuitry that is sensitive to temperature, supply voltage, and/or process variations. Also, a BIST architecture for determining RF performance of an RF systems is disclosed.
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Gregory J Flewelling from Presque Isle, ME, age ~62 Get Report