Sam O Chaisitti

US Patent:

7856207, Dec 21, 2010

Filed:

Dec 28, 2007

Appl. No.:

11/966738

Inventors:

Henry Gregg Martch - Parker CO, US
Kirk Lenzie - Aurora CO, US
Sam Chaisitti - Westminster CO, US
Paul Langer - Westminster CO, US

Assignee:

EchoStar Technologies L.L.C. - Englewood CO

International Classification:

H04B 1/06

US Classification:

455 411, 455 302

Abstract:

Various embodiments of apparatus and systems are provided for electrically isolating two devices while transferring power and RF signals therebetween. An electrical isolation apparatus includes an isolation transformer that operates to transfer electrical power between first and second devices. The electrical isolation apparatus also includes a decoupling device that transfers radio frequency (RF) signals between the first and second devices. The isolation transformer and the opto-isolator cooperatively operate to electrically isolate the first device from the second device.

US Patent:

7899395, Mar 1, 2011

Filed:

Feb 1, 2008

Appl. No.:

12/024745

Inventors:

Henry Gregg Martch - Parker CO, US
Kirk Lenzie - Aurora CO, US
Sam Chaisitti - Westminster CO, US
Paul Langer - Westminster CO, US

Assignee:

EchoStar Technologies L.L.C. - Englewood CO

International Classification:

H04B 1/06

US Classification:

455 411, 455 302, 333 24 R, 2191301, 363 2104

Abstract:

Various embodiments of apparatus and systems are provided for electrically isolating two devices while transferring power and RF signals therebetween. An electrical isolation apparatus includes an isolation transformer that operates to transfer electrical power between first and second devices. The electrical isolation apparatus also includes a decoupling device that transfers radio frequency (RF) signals between the first and second devices. The isolation transformer and the opto-isolator cooperatively operate to electrically isolate the first device from the second device.

US Patent:

7969154, Jun 28, 2011

Filed:

Nov 29, 2010

Appl. No.:

12/955571

Inventors:

Kirk Lenzie - Aurora CO, US
Casey Gold - Parker CO, US
Vincent Nguyen - Castle Rock CO, US
Sam Chaisitti - Westminster CO, US

Assignee:

Echostar Technologies L.L.C. - Englewood CO

International Classification:

G01R 31/14
H02H 3/00

US Classification:

324508, 324510, 361 46, 361 50

Abstract:

Various systems, methods and apparatus are described for detecting an excessive or faulty ground current in a conductive wire or electronic device. A ground current detector is coupled to a known earth ground to determine whether other ground lines are carrying excessive, faulty and/or leaking currents. If these types of unsafe conditions are detected, then a user can take appropriate action to locate and correct these problems.

US Patent:

20090085576, Apr 2, 2009

Filed:

Feb 18, 2008

Appl. No.:

12/032883

Inventors:

Kirk Lenzie - Aurora CO, US
Casey Gold - Parker CO, US
Vincent Nguyen - Castle Rock CO, US
Sam Chaisitti - Westminster CO, US

Assignee:

EchoStar Technologies Corporation - Englewood CO

International Classification:

G01R 31/02
H02H 3/16

US Classification:

324510, 340650, 361 45

Abstract:

Various systems, methods and apparatus are described for detecting an excessive or faulty ground current in a conductive wire or electronic device. A ground current detector is coupled to a known earth ground to determine whether other ground lines are carrying excessive, faulty and/or leaking currents. If these types of unsafe conditions are detected, then a user can take appropriate action to locate and correct these problems.

US Patent:

20110215811, Sep 8, 2011

Filed:

May 17, 2011

Appl. No.:

13/109099

Inventors:

Kirk Lenzie - Aurora CO, US
Casey Gold - Parker CO, US
Vincent Nguyen - Castle Rock CO, US
Sam Chaisitti - Westminster CO, US

Assignee:

EchoStar Technologies L.L.C. - Englewood CO

International Classification:

G01R 31/14

US Classification:

324508

Abstract:

Various systems, methods and apparatus are described for detecting an excessive or faulty ground current in a conductive wire or electronic device. A ground current detector is coupled to a known earth ground to determine whether other ground lines are carrying excessive, faulty and/or leaking currents. If these types of unsafe conditions are detected, then a user can take appropriate action to locate and correct these problems.

US Patent:

20120170322, Jul 5, 2012

Filed:

Dec 21, 2011

Appl. No.:

13/333488

Inventors:

Jose Palathra Thomas - Orange CA, US
Sam Chaisitti - Westminster CO, US
Priyanka Rajan Rele - San Jose CA, US
Jorge Enrique Lugo Nevarez - Denver CO, US

Assignee:

ECHOSTAR TECHNOLOGIES L.L.C. - Englewood CO

International Classification:

H02M 3/335

US Classification:

363 16

Abstract:

A method of supplying direct-current (DC) power is presented herein. In the method, a first electrical signal and a second electrical signal are received. The first electrical signal alternates between a high voltage and a low voltage according to a constant duty cycle. The second electrical signal is synchronized with the first electrical signal. The first electrical signal is gated using the second electrical signal to produce a gated electrical signal with a duty cycle less than the duty cycle of the first electrical signal. The gated electrical signal is filtered to generate a DC output voltage. A difference between the generated DC output voltage and a reference DC voltage is determined. The duty cycle of the gated electrical signal is controlled by controlling the gating of the first electrical signal based on the difference.