Edward Mark Fitzpatrick

US Patent:

6704544, Mar 9, 2004

Filed:

Jun 28, 2000

Appl. No.:

09/605775

Inventors:

Jamal Sarraf - Irvine CA
Edward J. Fitzpatrick - Rancho Palos Verdes CA
James E. Justiss - Rancho Palos Verdes CA
Remberto Martin - Walnut CA
Michelle J. Glaser-Weiner - Manhattan Beach CA

Assignee:

Hughes Electronics Corporation - El Segundo CA

International Classification:

H04B 7185

US Classification:

455 131, 455 17, 455 22, 455429

Abstract:

A payload design for a multi-spot-beam satellite communication system includes a plurality of uplink spot beam receivers and downlink spot beam transmitters, and a broadcast transmitting subsystem capable of transmitting a broadcast beam to an entire system geographical service area. An input filter-switch-matrix (IFSM) controllably selects input IF signal bands for routing to an on-board digital signal processor-router (DSPR). The DSPR subsequently routes all received point-to-point and broadcast data packets to the appropriate downlink spot or broadcast transmitting subsystems for transmission thereof. The broadcast downlink allows broadcast transmissions to occur at the highest efficiency possible, while also allowing for flexible provision of surge capacity for point-to-point transmissions on previously exhausted spot beams by selective use of the broadcast beam for such point-to-point transmissions.

US Patent:

7925208, Apr 12, 2011

Filed:

Oct 28, 2003

Appl. No.:

10/695723

Inventors:

Jamal Sarraf - Irvine CA, US
Edward J. Fitzpatrick - Rancho Palos Verdes CA, US
James E. Justiss - Rancho Palos Verdes CA, US
Remberto Martin - Walnut CA, US
Michelle J. Glaser-Weiner - Manhattan Beach CA, US

Assignee:

The DIRECTV Group, Inc. - El Segundo CA

International Classification:

H04B 7/185

US Classification:

455 121, 455 131, 455 17, 455 22, 370319, 370352, 370353

Abstract:

A payload design for a multi-spot-beam satellite communication system includes a plurality of uplink spot beam receivers and downlink spot beam transmitters, and a broadcast transmitting subsystem capable of transmitting a broadcast beam to an entire system geographical service area. An input filter-switch-matrix (IFSM) controllably selects input IF signal bands for routing to an on-board digital signal processor-router (DSPR). The DSPR subsequently routes all received point-to-point and broadcast data packets to the appropriate downlink spot or broadcast transmitting subsystems for transmission thereof. The broadcast downlink allows broadcast transmissions to occur at the highest efficiency possible, while also allowing for flexible provision of surge capacity for point-to-point transmissions on previously exhausted spot beams by selective use of the broadcast beam for such point-to-point transmissions.

US Patent:

61757195, Jan 16, 2001

Filed:

Jun 25, 1997

Appl. No.:

8/882119

Inventors:

Jamal Sarraf - Irvine CA
Edward J. Fitzpatrick - Rancho Palos Verdes CA
James E. Justiss - Rancho Palos Verdes CA
Remberto Martin - Walnut CA
Michelle J. Glaser-Weiner - Manhattan Beach CA

Assignee:

Hughes Electronics Corporation - El Segundo CA

International Classification:

H04B 7185

US Classification:

455 131

Abstract:

A payload design for a multi-spot-beam satellite communication system includes a plurality of uplink spot beam receivers and downlink spot beam transmitters, and a broadcast transmitting subsystem capable of transmitting a broadcast beam to an entire system geographical service area. An input filter-switch-matrix (IFSM) controllably selects input IF signal bands for routing to an on-board digital signal processor-router (DSPR). The DSPR subsequently routes all received point-to-point and broadcast data packets to the appropriate downlink spot or broadcast transmitting subsystems for transmission thereof. The broadcast downlink allows broadcast transmissions to occur at the highest efficiency possible, while also allowing for flexible provision of surge capacity for point-to-point transmissions on previously exhausted spot beams by selective use of the broadcast beam for such point-to-point transmissions.