Satellite receiver/router, system, and method of use

• US 7,792,068 B2
• Filed: 03/31/2003
• Issued: 09/07/2010
• Est. Priority Date: 04/03/1998
• Status: Active Grant

• Current Assignee: Rateze Remote Mgmt. L.L.C. (Intellectual Ventures LLC)
• Original Assignee: Megawave Audio LLC (Intellectual Ventures LLC)
• Inventors: Peabody, C. Brian, Fish, Laurence A., Robert, Roswell III, Lerner, Ian
• Primary Examiner(s): Phunkulh; Bob A
• Application Number:
  US10/403,855
• Publication Number:
  US 20050099969A1
• Time in Patent Office: 2,717 Days
• Field of Search: None
• US Class Current: 370/316
• CPC Class Codes: H04B 7/18584 Arrangements for data networking, i.e. for data packet routing, for congestion control data switching networks H04L12/00
• CPC Class Codes: H04L 12/1836 with heterogeneous network architecture
• CPC Class Codes: H04L 12/185 with management of multicast group membership
• CPC Class Codes: H04L 12/189 in combination with wireless systems selective distribution or broadcast in wireless communication networks H04W4/06
• CPC Class Codes: H04L 12/4612 LAN interconnection over narrowband networks, e.g. N-ISDN, PSTN, X.25

Abstract

This specification discloses a satellite transmission system for transmission of TCP/IP compatible packets from a head end computer through a satellite uplink, an extraterrestrial satellite, a satellite downlink, and an integrated satellite receiver/router for outputting of the TCP/IP compatible packets through a port on the receiver/router onto a computer LAN or WAN. The system may include an Internet or telecommunications backchannel. The receiver becomes router enabled by means of a removable insertion Ethernet/Router insertion card inserted into a slot in the receiver, although the transmission system may be used to simultaneously transmit a variety of other services through the receiver by use of other service slots in the receiver. The Ethernet/Receiver supports the IGMPv2 Multicasting (querier and non querier modes), standard TCP/IP (including UDP and Telnet), and SNMP protocols.

Claims

1. A method for processing a signal in a satellite based IP communication system, said method including:

receiving a signal from a satellite at a receiver, said signal including IP packets and said receiver including an Ethernet/router card;

routing a first portion of said signal to a first processor;

extracting at least a portion of said IP packets from said first portion of said signal using said first processor;

routing a second portion of said signal to a second processor; and

extracting additional digital data from said second portion of said signal using said second processor;

wherein said Ethernet/router card is removably inserted into a slot of the receiver and comprises a receiver backplane interface that provides the card with a clock and a packetized TCP/IP data stream, and a depacketizer that receives as input the packetized TCP/IP data stream and outputs TCP/IP packets and data.

2. The method of claim 1 wherein said additional digital data includes IP packets.

3. The method of claim 1 wherein said additional digital data includes audio data.

4. The method of claim 1 wherein said additional digital data includes video data.

5. The method of claim 1 wherein said additional digital data includes at least one of IP packets, audio data, and video data.

6. The method of claim 1 including outputting Ethernet frames through a first output port.

7. The method of claim 6 including outputting said additional digital data through a second output port.

8. A method as recited in claim 1, wherein said Ethernet/router card further comprises a TCP/IP address filter that receives as input the TCP/IP packets and data from the depacketizer, and (i) outputs the TCP/IP packets and data and (ii) routes selected TCP/IP packets as in-band signaling data.

9. A method as recited in claim 8, wherein said Ethernet/router card further comprises an Ethernet transmitter that receives the TCP/IP packets and data as input from the TCP/IP address filter.

10. A method as recited in claim 9, wherein said Ethernet/router card further comprises an in-band signaling address filter that receives as input the in-band signaling data from the TCP/IP address filter and routes selected packets as commands.

11. A method as recited in claim 10, wherein said Ethernet/router card further comprises a command processor that receives as input the commands routed by the in-band signaling address filter.

12. A method as recited in claim 11, wherein the command processor outputs commands to, and receives as input responses from, an RS-232 monitoring and control port on the card.

13. A method as recited in claim 11, wherein the command processor (i) exchanges commands and responses with at least one auxiliary RS-232 port on the card;

and (ii) provides command output, and receives input responses from, a modem communication processor on the card.

14. A method as recited in claim 10, wherein the in-band signaling address filter routes selected user datagram protocol (UDP) packets to said command processor.

15. A method as recited in claim 14, further comprising operating the card in an Internet Group Management Protocol (IGMP) mode in which the card only allows multicast UDP packets to pass to an Ethernet connector if a user has requested the multicast packet stream and the UDP packets are destined for a multicast address for the stream.

16. A method as recited in claim 1, wherein the packetized TCP/IP data stream provided by the backplane interface comprises a high level data link control (HDLC) packetized data stream, and wherein said depacketizer comprises an HDLC depacketizer that receives the HDLC packetized data stream and outputs the TCP/IP packets and data.

17. A method as recited in claim 1, further comprising providing an Ethernet output, including TCP/IP packets, and distributing the Ethernet output to a local area network (LAN).

18. A method as recited in claim 10, further comprising receiving an Ethernet input from the LAN and outputting TCP/IP packets and data based on said Ethernet input from the LAN.

19. A method as recited in claim 18, further comprising using an address filter to receive said TCP/IP packets and data from the LAN and providing commands addressed to the card to a command processor.

20. A method as recited in claim 19, further comprising providing data addressed for a head-end content server to a modem communication processor on the card.

21. A method as recited in claim 20, wherein the modem communication processor performs data transmission and data reception through an RS-232 communications port.

22. A method as recited in claim 1, further comprising operating the card in a static route mode in which the card only allows a packet to be output to an Ethernet port on the card if a destination address is contained in a static route table maintained on the card.

23. A method as recited in claim 22, further comprising permitting a user to configure the static route table to pass individual addresses or groups of addresses using a destination address and address mask, and wherein the card logically ANDs an incoming packet'"'"'s address with the route table entry'"'"'s mask and passes the packet to an Ethernet output port only if the result is equal to the route table entry'"'"'s destination address.

24. A method for processing a signal in a satellite based IP communication system, said method including:

receiving a signal from a satellite at a first processor, said signal including IP packets and said receiver including an Ethernet/router card;

extracting at least a portion of said IP packets from said signal with said first processor to form a first data stream;

outputting said first data stream from said receiver through a first output port;

receiving said signal from said satellite at a second processor;

extracting additional digital data from said signal with said second processor to form a second data stream; and

outputting said second data stream from said receiver through a second output port;

wherein said Ethernet/router card is removably inserted into a slot of the receiver and comprises a receiver backplane interface that provides the card with a clock and a packetized TCP/IP data stream, and a depacketizer that receives as input the packetized TCP/IP data stream and outputs TCP/IP packets and data.

25. The method of claim 24 wherein said additional digital data includes IP packets.

26. The method of claim 24 wherein said additional digital data includes audio data.

27. The method of claim 24 wherein said additional digital data includes video data.

28. The method of claim 24 wherein said additional digital data includes at least one of IP packets, audio data, and video data.

29. The method of claim 24 wherein said first data stream includes Ethernet frames.

30. A method for processing a signal in a satellite based IP communication system, said method including:

receiving a signal from a satellite at a first processor, said signal including IP packets destined for an end user and said receiver including an Ethernet/router card;

extracting at least a portion of said IP packets from said signal with said first processor to form a first data stream;

outputting said first data stream from said receiver through a first output port;

receiving said signal from said satellite at a second processor;

extracting additional digital data destined for an end user from said signal with said second processor to form a second data stream; and

outputting said second data stream from said receiver through a second output port;

wherein said Ethernet/router card is removably inserted into a slot of the receiver and comprises a receiver backplane interface that provides the card with a clock and a packetized TCP/IP data stream, and a depacketizer that receives as input the packetized TCP/IP data stream and outputs TCP/IP packets and data.

31. The method of claim 30 wherein said additional digital data includes IP packets.

32. The method of claim 30 wherein said additional digital data includes audio data.

33. The method of claim 30 wherein said additional digital data includes video data.

34. The method of claim 30 wherein said additional digital data includes at least one of IP packets, audio data, and video data.

35. The method of claim 30 wherein said first data stream includes Ethernet frames.

36. A method as recited in claim 30, wherein said Ethernet/router card further comprises a TCP/IP address filter that receives as input the TCP/IP packets and data from the depacketizer, and (i) outputs the TCP/IP packets and data and (ii) routes selected TCP/IP packets as in-band signaling data.

37. A method as recited in claim 36, wherein said Ethernet/router card further comprises an Ethernet transmitter that receives the TCP/IP packets and data as input from the TCP/IP address filter.

38. A method as recited in claim 37, wherein said Ethernet/router card further comprises an in-band signaling address filter that receives as input the in-band signaling data from the TCP/IP address filter and routes selected packets as commands.

39. A method as recited in claim 38, wherein said Ethernet/router card further comprises a command processor that receives as input the commands routed by the in-band signaling address filter.

40. A method as recited in claim 30, wherein said Ethernet/router card further comprises a TCP/IP address filter that receives as input the TCP/IP packets and data from the depacketizer, and (i) outputs the TCP/IP packets and data and (ii) routes selected TCP/IP packets as in-band signaling data.

41. A method as recited in claim 40, wherein said Ethernet/router card further comprises an Ethernet transmitter that receives the TCP/IP packets and data as input from the TCP/IP address filter.

42. A method as recited in claim 41, wherein said Ethernet/router card further comprises an in-band signaling address filter that receives as input the in-band signaling data from the TCP/IP address filter and routes selected packets as commands.

43. A method as recited in claim 42, wherein said Ethernet/router card further comprises a command processor that receives as input the commands routed by the in-band signaling address filter.

44. A computer-readable storage medium having computer-readable instructions for processing a signal in a satellite based IP communication system, said computer-readable instructions comprising instructions for:

receiving a signal from a satellite at a receiver, said signal including IP packets and said receiver including an Ethernet/router card;

routing a first portion of said signal to a first processor;

extracting at least a portion of said IP packets from said first portion of said signal using said first processor;

routing a second portion of said signal to a second processor; and

extracting additional digital data from said second portion of said signal using said second processor,

wherein said Ethernet/router card is removably inserted into a slot of the receiver and comprises a receiver backplane interface that provides the card with a clock and a packetized TCP/IP data stream, and a depacketizer that receives as input the packetized TCP/IP data stream and outputs TCP/IP packets and data.

45. The computer-readable storage medium of claim 44, wherein said additional digital data includes IP packets.

46. The computer-readable storage medium of claim 44, wherein said additional digital data includes audio data.

47. The computer-readable storage medium of claim 44, wherein said additional digital data includes video data.

48. The computer-readable storage medium of claim 44, wherein said additional digital data includes at least one of IP packets, audio data, and video data.

49. The computer-readable storage medium of claim 44 further comprising computer-readable instructions for outputting Ethernet frames through a first output port.

50. The computer-readable storage medium of claim 49 further comprising computer-readable instructions for outputting said additional digital data through a second output port.

51. The computer-readable storage medium of claim 44, wherein the packetized TCP/IP data stream provided by the backplane interface comprises a high level data link control (HDLC) packetized data stream, and wherein said depacketizer comprises an HDLC depacketizer that receives the HDLC packetized data stream and outputs the TCP/IP packets and data.

52. The computer-readable storage medium of claim 44, wherein said Ethernet/router card further comprises a TCP/IP address filter that receives as input the TCP/IP packets and data from the depacketizer, and (i) outputs the TCP/IP packets and data and (ii) routes selected TCP/IP packets as in-band signaling data.

53. The computer-readable storage medium of claim 52, wherein said Ethernet/router card further comprises an Ethernet transmitter that receives the TCP/IP packets and data as input from the TPC/IP address filter.

54. The computer-readable storage medium of claim 53, wherein said Ethernet/router card further comprises an in-band signaling address filter that receives as input the in-band signaling data from the TCP/IP address filter and routes selected packets as commands.

55. The computer-readable storage medium of claim 54, wherein said Ethernet/router card further comprises a command processor that receives as input the commands routed by the in-band signaling address filter.

56. The computer-readable storage medium of claim 55, wherein the command processor outputs commands to, and receives as input responses from, an RS-232 monitoring and control port on the card.

57. The computer-readable storage medium of claim 55, wherein the command processor (i) exchanges commands and responses with at least one auxiliary RS-232 port on the card;

and (ii) provides command output, and receives input responses from, a modem communication processor on the card.

60. The computer-readable storage medium of claim 44, further comprising computer-readable instructions for providing an Ethernet output, including TCP/IP packets, and distributing the Ethernet output to a local area network (LAN).

61. The computer-readable storage medium of claim 60, further comprising computer-readable instructions for receiving an Ethernet input from the LAN and outputting TCP/IP packets and data based on said Ethernet input from the LAN.

62. The computer-readable storage medium of claim 61, further comprising computer-readable instructions for using an address filter to receive said TCP/IP packets and data from the LAN and providing commands addressed to the card to a command processor.

63. The computer-readable storage medium of claim 62, further comprising computer-readable instructions for providing data addressed for a head-end content server to a modem communication processor on the card.

64. The computer-readable storage medium of claim 63, wherein the modem communication processor performs data transmission and data reception through an RS-232 communications port.

65. The computer-readable storage medium of claim 44, further comprising computer-readable instructions for operating the card in a static route mode in which the card only allows a packet to be output to an Ethernet port on the card if a destination address is contained in a static route table maintained on the card.

66. The computer-readable storage medium of claim 65, further comprising computer-readable instructions for permitting a user to configure the static route table to pass individual addresses or groups of addresses using a destination address and address mask, and wherein the card logically ANDs an incoming packet'"'"'s address with the route table entry'"'"'s mask and passes the packet to an Ethernet output port only if the result is equal to the route table entry'"'"'s destination address.

58. The computer-readable storage medium of 54, wherein the in-band signaling address filter routes selected user datagram protocol (UDP) packets to said command processor.

59. The computer-readable storage medium of claim 58, further comprising computer-readable instructions for operating the card in an Internet Group Management Protocol (IGMP) mode in which the card only allows multicast UDP packets to pass to an Ethernet connector if a user has requested the multicast packet stream and the UDP packets are destined for a multicast address for the stream.

67. A computer-readable storage medium having computer-readable instructions for processing a signal in a satellite based IP communication system, said computer-readable instructions comprising instructions for:

receiving a signal from a satellite at a first processor, said signal including IP packets and said receiver including an Ethernet/router card;

extracting at least a portion of said IP packets from said signal with said first processor to form a first data stream;

outputting said first data stream from said receiver through a first output port;

receiving said signal from said satellite at a second processor;

extracting additional digital data from said signal with said second processor to form a second data stream; and

outputting said second data stream from said receiver through a second output port,

wherein said Ethernet/router card is removably inserted into a slot of the receiver and comprises a receiver backplane interface that provides the card with a clock and a packetized TCP/IP data stream, and a depacketizer that receives as input the packetized TCP/IP data stream and outputs TCP/IP packets and data.

68. The computer-readable storage medium of claim 67, wherein said additional digital data includes IP packets.

69. The computer-readable storage medium of claim 67, wherein said additional digital data includes audio data.

70. The computer-readable storage medium of claim 67, wherein said additional digital data includes video data.

71. The computer-readable storage medium of claim 67, wherein said additional digital data includes at least one of IP packets, audio data, and video data.

72. The computer-readable storage medium of claim 67, wherein said first data stream includes Ethernet frames.

73. The computer-readable storage medium of claim 67, wherein said Ethernet/router card further comprises a TCP/IP address filter that receives as input the TCP/IP packets and data from the depacketizer, and (i) outputs the TCP/IP packets and data and (ii) routes selected TCP/IP packets as in-band signaling data.

74. The computer-readable storage medium of claim 73, wherein said Ethernet/router card further comprises an Ethernet transmitter that receives the TCP/IP packets and data as input from the TPC/IP address filter.

75. The computer-readable storage medium of claim 74, wherein said Ethernet/router card further comprises an in-band signaling address filter that receives as input the in-band signaling data from the TCP/IP address filter and routes selected packets as commands.

76. The computer-readable storage medium of claim 75, wherein said Ethernet/router card further comprises a command processor that receives as input the commands routed by the in-band signaling address filter.

77. A computer-readable storage medium having computer-readable instructions for processing a signal in a satellite based IP communication system, said computer-readable instructions comprising instructions for:

receiving a signal from a satellite at a first processor, said signal including IP packets destined for an end user and said receiver including an Ethernet/router card;

extracting at least a portion of said IP packets from said signal with said first processor to form a first data stream;

outputting said first data stream from said receiver through a first output port;

receiving said signal from said satellite at a second processor;

extracting additional digital data destined for an end user from said signal with said second processor to form a second data stream; and

outputting said second data stream from said receiver through a second output port,

wherein said Ethernet/router card is removably inserted into a slot of the receiver and comprises a receiver backplane interface that provides the card with a clock and a packetized TCP/IP data stream, and a depacketizer that receives as input the packetized TCP/IP data stream and outputs TCP/IP packets and data.

78. The computer-readable storage medium of claim 77, wherein said additional digital data includes IP packets.

79. The computer-readable storage medium of claim 77, wherein said additional digital data includes audio data.

80. The computer-readable storage medium of claim 77, wherein said additional digital data includes video data.

81. The computer-readable storage medium of claim 77, wherein said additional digital data includes at least one of IP packets, audio data, and video data.

82. The computer-readable storage medium of claim 77, wherein said first data stream includes Ethernet frames.

83. The computer-readable storage medium of claim 77, wherein said Ethernet/router card further comprises a TCP/IP address filter that receives as input the TCP/IP packets and data from the depacketizer, and (i) outputs the TCP/IP packets and data and (ii) routes selected TCP/IP packets as in-band signaling data.

84. The computer-readable storage medium of claim 83, wherein said Ethernet/router card further comprises an Ethernet transmitter that receives the TCP/IP packets and data as input from the TPC/IP address filter.

85. The computer-readable storage medium of claim 84, wherein said Ethernet/router card further comprises an in-band signaling address filter that receives as input the in-band signaling data from the TCP/IP address filter and routes selected packets as commands.

86. The computer-readable storage medium of claim 85, wherein said Ethernet/router card further comprises a command processor that receives as input the commands routed by the in-band signaling address filter.