Cecilia Cheng Comeaux

US Patent:

7693483, Apr 6, 2010

Filed:

Sep 29, 2006

Appl. No.:

11/529840

Inventors:

John L. Norin - Redondo Beach CA, US
Cecilia C. Comeaux - Redondo Beach CA, US
Benjamin Mui - Redondo Beach CA, US

Assignee:

The DIRECTV Group, Inc. - El Segundo CA

International Classification:

H04Q 7/20

US Classification:

455 121, 455 301, 455 302, 455 304, 455 306, 455427, 725 62, 725 63, 725 64, 725 65, 725 66

Abstract:

A method and system for operating a satellite communication system with regional redundant sites and a central site includes a satellite and a regional site uplinking regional uplink signals to the satellite and condition signals to a terrestrial communication link. The satellite generates regional downlink signals from the regional uplink signal. A central site receives the regional downlink signals from the satellite and terrestrially receives the condition signals and generates control signals for the regional site through the terrestrial communication link.

US Patent:

7706747, Apr 27, 2010

Filed:

Sep 29, 2006

Appl. No.:

11/529915

Inventors:

Paul Christenson - New Braunfels TX, US
Cecilia C. Comeaux - Redondo Beach CA, US
Salvador A. Lozano - Downey CA, US
Wayne Ladrach - Playa del Rey CA, US

Assignee:

The DIRECTV Group, Inc. - El Segundo CA

International Classification:

H04Q 7/20

US Classification:

455 121, 455 301, 455 302, 455 131, 455 305, 455 304, 370315, 370322, 370321, 370326, 370310, 725 63, 725 64, 725 65, 725105, 725118

Abstract:

A method and apparatus for broadcasting in a satellite communication system includes uplinking first uplink signals using a primary site, determining a switchover event and determining a primary site switch time. The primary site switch timer is determined along with a diverse site switch timer that is after the primary switch time. The uplink signal is discontinued from the primary site and the uplinking second uplink signals from the diverse site.

US Patent:

7783248, Aug 24, 2010

Filed:

Sep 29, 2006

Appl. No.:

11/529950

Inventors:

Cecilia C. Comeaux - Redondo Beach CA, US
Wayne Ladrach - Playa del Rey CA, US
Benjamin Mui - Redondo Beach CA, US
Hanno Basse - Santa Monica CA, US

Assignee:

The DIRECTV Group, Inc. - El Segundo CA

International Classification:

H04H 20/74

US Classification:

455 302, 455 301, 455 303, 455 304, 455 305, 455427, 455428, 455429, 455517, 455520, 370315, 370321, 370326, 370328, 370310, 725 63, 725 64, 725 65, 725 73, 725105

Abstract:

A method and apparatus for connecting a primary uplink site and a diverse uplink site includes a satellite and a communication line that couples the primary uplink site and the diverse uplink site. The primary uplink site receives television signals and communicates the signals over the communication line using a video-over-internet protocol. The primary site forms primary uplink signals and selectively communicates the primary uplink signals to the satellite. The diverse uplink site receives the television signals from the primary uplink site through the communication line and forms the diverse uplink signals and selectively communicates the diverse uplink signals to the satellite.

US Patent:

7859330, Dec 28, 2010

Filed:

Apr 9, 2009

Appl. No.:

12/421485

Inventors:

Guangcai Zhou - Agoura Hills CA, US
Tung-Sheng Lin - Claremont CA, US
Dennis Lai - Cerritos CA, US
Joseph Santoru - Agoura Hills CA, US
Ernest C. Chen - San Pedro CA, US
Shamik Maitra - Redondo Beach CA, US
Cecilia Comeaux - Redondo Beach CA, US

Assignee:

The DIRECTV Group, Inc. - El Segundo CA

International Classification:

G01R 19/00

US Classification:

330 2, 330 98

Abstract:

Systems and methods for characterizing amplifiers. A system for characterizing an amplifier in accordance with the present invention comprises a Gaussian signal source for generating a signal in the frequency domain, a notch filter, coupled to the Gaussian Noise source, wherein the notch filter has a notch at a specified frequency and a frequency bandwidth, the frequency bandwidth encompassing the specified frequency, an Inverse Fast Fourier Transform device, coupled to an output of the notch filter, a normalization device, coupled to the Inverse Fast Fourier Transform device, an amplifier under test, coupled to the normalization device, for amplifying the signal generated by the Gaussian signal source, and a measurement device, coupled to an output of the amplifier, for measuring a power output of the amplifier in the frequency bandwidth and a noise output at the specified notch frequency, and for calculating the ratio between the power output and the noise output.

US Patent:

20080129374, Jun 5, 2008

Filed:

Oct 11, 2007

Appl. No.:

11/870955

Inventors:

Guangcai Zhou - Agoura Hills CA, US
Tung-Sheng Lin - Claremont CA, US
Dennis Lai - Cerritos CA, US
Joseph Santoru - Agoura Hills CA, US
Ernest C. Chen - San Pedro CA, US
Shamik Maitra - Redondo Beach CA, US
Cecilia Comeaux - Redondo Beach CA, US

Assignee:

THE DIRECTV GROUP, INC. - El Segundo CA

International Classification:

G01R 19/00

US Classification:

330 2

Abstract:

Systems and methods for characterizing amplifiers. A system for characterizing an amplifier in accordance with the present invention comprises a Gaussian signal source for generating a signal in the frequency domain, a notch filter, coupled to the Gaussian Noise source, wherein the notch filter has a notch at a specified frequency and a frequency bandwidth, the frequency bandwidth encompassing the specified frequency, an Inverse Fast Fourier Transform device, coupled to an output of the notch filter, a normalization device, coupled to the Inverse Fast Fourier Transform device, an amplifier under test, coupled to the normalization device, for amplifying the signal generated by the Gaussian signal source, and a measurement device, coupled to an output of the amplifier, for measuring a power output of the amplifier in the frequency bandwidth and a noise output at the specified notch frequency, and for calculating the ratio between the power output and the noise output.