Single medium wiring scheme for multiple signal distribution in building and access port therefor

• US 6,108,331 A
• Filed: 07/10/1998
• Issued: 08/22/2000
• Est. Priority Date: 07/10/1998
• Status: Expired due to Term

• Current Assignee: WI3 Incorporated
• Original Assignee: Upstate Systems Tec, Inc.
• Inventors: Thompson, William H.
• Primary Examiner(s): Hsu, Alpus H.
• Assistant Examiner(s): Qureshi, Afsar M.
• Application Number:
  US09/114,021
• Time in Patent Office: 774 Days
• Field of Search: 370/395, 370/400, 370/401, 370/428, 370/389, 370/392, 370/465, 370/466, 370/471, 370/473, 370/474, 370/475, 370/486, 370/487, 370/490, 370/407, 370/406, 370/403, 370/352, 340/825.02, 340/825.03, 348/6, 348/7, 348/461, 348/467, 348/469, 455/3.1, 455/5.1, 359/115, 359/118, 359/120, 359/121, 709/201, 379/102.01
• US Class Current: 370/352
• CPC Class Codes: H01R 2201/06 for computer periphery
• CPC Class Codes: H01R 27/02 for simultaneous co-operation with two or more dissimilar counterparts
• CPC Class Codes: H04N 7/104 Switchers or splitters
• CPC Class Codes: H04N 7/106 for domestic distribution
• CPC Class Codes: H04N 7/108 the cable being constituted by a pair of wires

Abstract

Intended primarily for use within a residential or commercial structure, an access node or access port has physical connectors for a variety of signal-receiving and -transmitting devices and includes apparatus that allow all of the signals used by the devices to be carried by as few as one or two conduits. The conduits can be fiber optic cables, coaxial cables, twister pair wiring, radio frequency broadcasts, or any other signal-carrying medium. The signals are converted to and from addressed data packets carried in a packet stream over the conduits. If the conduits are fiber optic cables or other non-conductor media, a media converter is included. A central node or node zero receives signals from outside the structure and converts them to addressed data packets, then sends the data packets over the conduit(s) as the packet stream. The access nodes take packets addressed to them and convert the packets back into the original signals, then feed the signals to appropriate connectors on the access nodes. The central node can also take packets from the access nodes and convert them into signals for transmission externally of the structure to, for example, service providers. Additionally, the central node can send packets from one access node to other access nodes for internode communication, allowing computer networking, remote use of devices connected to the access nodes, and configuration of the central node from devices connected to the access nodes.

Claims

1. An in-house signal distribution system including:

a main input node mounted in a structure and taking at least one external signal and converting the at least one external signal to addressed data packets conveyed in a packet stream to at least one access node, each access node having a unique node address;

each access node being an access port including a main module mounted in a wall of the structure and further including;

a main module connector connected to the packet stream;

at least one physical medium connector connected to the main module and arranged for connection to at least one device that can receive respective ones of the at least one signal distributed by the in-house signal distribution network;

a packet handler that picks packets addressed to the access node from the packet stream; and

the packet handler converting the picked packets back to their respective ones of the at least one signal and sending the respective ones of the at least one signal to a respective physical medium connector of the access node; and

a packet stream distributor carrying the packet stream from the main input node output port to each access node main module connector.

2. The system of claim 1 wherein the packet stream distributor includes a fiber optic cable and the main input node and the at least one access node include media converters, the media converters converting the packet stream from an electrical packet stream to an optical packet stream and vice versa.

3. The system of claim 1 wherein the packet stream distributor includes a coaxial cable.

4. The system of claim 1 wherein the main input node further includes a frequency allocator that transmits data packets over the packet stream distributor at particular frequencies according to the respective types of signals represented by the data packets.

5. The system of claim 4 wherein the access node packet handlers use the frequency at which a data packet is transmitted to determine what type of signal the data packet represents and to which connector the data packet should be sent after it is converted.

6. The system of claim 4 wherein the packet stream distributor includes coaxial cable, the main input node receives a cable television signal as one of the external signals, and the frequency allocator passes the cable television signal through to the coaxial cable unchanged.

7. The system of claim 6 wherein the frequency allocator transmits signals of types other than cable television at frequencies outside a frequency range occupied by the cable television signal.

8. The system of claim 1 wherein each access node is directly connected to the main input node so that the system has a star topology.

9. The system of claim 1 wherein each access node is connected to other access nodes and the main input node in a ring topology.

10. The system of claim 1 wherein each access node is connected to the main input node and other access nodes in both a star and a ring topology.

11. The system of claim 1 wherein the packet handler includes:

an address filter that picks the packets addressed to the access node from the packet stream;

a receiver that receives the addressed packets; and

a first converter arranged to take extracted packets and convert them to the respective one of the at least one signal.

12. The system of claim 1 wherein the main node receives signals from one access node addressed to another access node on the network, thereby allowing communication between devices attached to the one and another access nodes.

13. The system of claim 1 wherein the main input node receives signals from the access nodes informing the main input node of types of devices handled by the access nodes.

14. The system of claim 1 wherein the main input node receives signals from the access nodes informing the main input node that devices are plugged into the physical medium connectors.

15. A packet stream decoding access node being an access port of an in-house digital network and including apparatus that receives addressed data packets from a packet stream carried by a packet stream distributor and converts the addressed data packets into signals usable by devices connected to physical medium connectors of the access node, the apparatus of the access node further including:

a main module connector of the access node mounted on a main module of the access node and arranged to receive the packet stream from the packet stream distributor, an installed physical medium connector being connected to the main module and arranged for connection to a respective device that can receive a respective one of the signals distributed by the in-house digital network as a respective portion of the packet stream; and

a packet handling system connected to the main module connector that extracts from the packet stream data packets addressed to one of the access node and a device connected to the access node, the packet handling system including a decoder that decodes the extracted data packets into a signal and sends the signal to a physical medium connector connected to the main module.

16. The access node of claim 15 wherein:

the main module includes an expansion connector into which a submodule can be inserted, the expansion connector sending the packet stream to the submodule;

the packet handling system, the decoder, and the physical medium connector are on the submodule; and

the decoder decodes the extracted packets into a signal appropriate for a device connectable to the submodule via the physical medium connector.

17. The access node of claim 15 wherein:

the main module includes an expansion connector into which a submodule can be inserted, the expansion connector sending the extracted data packets to the submodule;

the decoder and the physical medium connector are on the submodule; and

the decoder decodes the extracted packets into a signal appropriate for a device connectable to the submodule via the physical medium connector.

18. The access node of claim 15 wherein:

the main module includes an expansion connector into which a submodule can be inserted;

the packet handling system is on the main module and extracts packets appropriate for a predetermined set of devices connectable to the access node via the submodule;

the decoder is on the main module and decodes the extracted data packets into signals appropriate for the predetermined set of devices; and

the submodule includes the physical medium connector so that the physical medium connector receives the signals when the submodule is plugged into the expansion connector.

19. The access node of claim 15 wherein the packet handling system sends an acknowledgment signal via the packet stream distributor when an addressed data packet has been successfully extracted from the packet stream.

20. The access node of claim 15 wherein the packet stream distributor is a single conduit to at least the access node.

21. The access node of claim 20 wherein the access node apparatus is arranged for two-way communication with the packet stream.

22. The access node of claim 15 wherein the packet stream distributor is a plurality of conduits to at least the access node and the main module connector of the access node is configured to receive all of the conduits.

23. The access node of claim 15 wherein the packet stream is generated by a central node, the central node being arranged to receive analog and digital signals and including:

an analog-to-digital converter arranged to convert received analog signals to digital versions of the analog signals; and

a router arranged to receive the digital signals and the digital versions of the analog signals, combine them into addressed data packets carried by a single digital signal, and send the single digital signal to the packet stream distributor via an output port.

24. The access node of claim 23 wherein the access node is one of a plurality of access nodes connected to the central node, each access node has a unique address, and the respective packet handling system of each access node extracts packets bearing the unique address of the access node.

25. The access node of claim 23 wherein the main module connector is configured to allow two-way communication between the access node and the packet stream, thereby allowing two-way communication between a device connected to the access node and one of the central node and a device connected to another access node connected to the packet stream.

26. In an in-house signal distribution system, an access node of the in-house signal distribution system that is an access port of the in-house signal distribution system and includes:

a main module mounted in a communications box of a structure in which the in-house signal distribution system is installed;

a main module connector mounted on the main module and connected to a packet stream of the in-house signal distribution system, the packet stream including addressed data packets that carry respective portions of at least one signal distributed by the in-house signal distribution network;

at least one physical medium connector connected to the main module and arranged for connection to at least one device that can receive respective ones of the at least one signal distributed by the in-house distribution network;

a packet handler that picks packets for the access node from the packet stream;

the packet handler converting the picked packets back to their respective ones of the at least one signal and sending the respective ones of the at least one signal to a respective physical medium connector of the access node; and

a packet stream distributor carrying the packet stream to the access node main module connector.

27. The access node of claim 26 wherein the packet stream is generated by a main input node that takes at least one external signal and converts the at least one external signal to addressed data packets carried by the packet stream to the access node, the at least one external signal being at least one signal for distribution.

28. The access node of claim 27 wherein the packet stream distributor includes a fiber optic cable and the main input node and the access node include media converters, the media converters converting the packet stream from an electrical packet stream to an optical packet stream and vice versa.

29. The access node of claim 27 wherein the main input node further includes a frequency allocator that transmits data packets over the packet stream distributor at particular frequencies according to the respective types of signals represented by the data packets.

30. The access node of claim 29 wherein the packet stream distributor includes coaxial cable, the main input node receives a cable television signal as one of the external signals, and the frequency allocator passes the cable television signal through to the coaxial cable unchanged.

31. The access node of claim 30 wherein the frequency allocator transmits signals of types other than cable television at frequencies outside a frequency range occupied by the cable television signal.

32. The access node of claim 27 wherein the main input node receives signals from the access node informing the main input node of types of devices handled by the access node.

33. The access node of claim 27 wherein the main input node receives signals from the access node informing the main input node that devices are plugged into the physical medium connectors.

34. The access node of claim 27 wherein a plurality of access nodes are connected to the in-house signal distribution system and the main input node receives signals in the form of addressed data packets from one access node addressed to another access node on the in-house signal distribution system, thereby allowing communication between devices attached to the one and another access nodes.

35. The access node of claim 27 wherein the main input node is configurable by a computer connected to the access node.

36. The access node of claim 26 wherein the packet stream distributor includes a fiber optic cable and the access node includes a media converter, the media converter converting the packet stream from an electrical packet stream to an optical packet stream and vice versa.

37. The access node of claim 26 wherein the packet stream distributor includes a coaxial cable.

38. The access node of claim 26 wherein the access node packet handler uses a frequency at which a data packet is transmitted to determine what type of signal the data packet represents and to which physical medium connector the data packet should be sent after it is converted.

39. The access node of claim 26 wherein a plurality of access nodes are each directly connected to the in-house signal distribution system so that the system has a star topology.

40. The access node of claim 26 wherein a plurality of access nodes are each connected to other access nodes and the in-house signal distribution system so that the system has a ring topology.

41. The access node of claim 26 wherein a plurality of access nodes are each connected to other access nodes and the in-house signal distribution system so that the system has both a star and a ring topology.

42. The access node of claim 26 wherein the packet handler includes:

an address filter that picks packets addressed to one of the access node and a device connected to the access node from the packet stream;

a receiver that receives the addressed packets; and

a first converter arranged to take extracted packets and convert them to the respective one of the at least one signal.

43. The access node of claim 26 wherein the access node is arranged to send internal signal data packets addressed to another access node on the in-house signal distribution system, the internal signal data packets carrying portions of at least one internal signal sent by at least one device connected to the access node and usable by a device connected to the another access node, thereby allowing communication between devices attached to the access nodes.

44. In an access port mounted in a communications box recessed within a wall, the access port being an access node of an in-house signal distribution network and including:

an electronic device mounted on a main module and including a packet handler receiving a packet stream that includes addressed data packets, the packet handler taking from the packet stream data packets addressed to the access node;

a first converter of the electronic device in communication with the packet handler that discerns what type of signal each data packet represents, converts the data packet to its signal type, and sends the signal to a connector arranged to receive the signal; and

the connector being supported on the main module with one end being accessible from within the communications box for connection to the electronic device and another end being accessible from without the communications box for connection to an external device by a user.

45. The access port of claim 44 wherein the connector protrudes through a wall plate mounted across an open end of the communications box.

46. The access port of claim 44 wherein the first converter uses a frequency at which the data packet is received to determine what type of signal the data packet represents.

47. The access port of claim 44 wherein the first converter uses information in a packet header to determine what type of signal the data packet represents.

48. The access port of claim 44 further including:

a second converter in communication with the connector, the second connector receiving a signal from the connector and converting the signal to addressed data packets that are sent to the packet handler; and

the packet handler receiving addressed data packets from the second converter and sending the data packets into the packet stream.

49. The access port of claim 44 wherein the packet stream is carried over a fiber optic cable connected to a media converter of the access port, the media converter also being connected to the electronic device and taking the packet stream in photonic form and converting it to an electronic form usable by the electronic device.

50. The access port of claim 44 wherein the packet stream is carried over a coaxial cable connected to the electronic device.

51. The access port of claim 44 wherein the packet stream is carried over a plurality of conduits to the electronic device.

52. The access port of claim 44 wherein a plurality of access ports are connected to the packet stream, each access port having its unique network address, the packet stream being provided by a central node that receives external signals, converts them into addressed data packets, and sends them into the packet stream.

53. The access port of claim 52 wherein the central node also receives signals from the access ports.

54. The access port of claim 53 wherein the signals from the access ports inform the central node what types of signals each access port is arranged to receive.

55. The access port of claim 53 wherein the signals from the access ports inform the central node whether a device is plugged into the connector.

56. The access port of claim 44 wherein the connector is for an analog signal and the first converter further includes a digital-to-analog converter.

57. The access port of claim 56 wherein the analog signal is a telephone signal.

58. The access port of claim 44 wherein the access node has a unique network address and the packet handler takes packets bearing the unique network address from the packet stream.

59. A packet stream decoding access node being an access port of an in-house digital network and including apparatus that receives addressed data packets from a packet stream carried by a packet stream distributor and converts the addressed data packets into signals usable by devices connected to physical medium connectors of the access node, the apparatus of the access node further including:

a main module connector of the access node mounted on a main module of the access node and arranged to receive the packet stream from the packet stream distributor;

a packet handling system connected to the main module connector that extracts from the packet stream data packets addressed to one of the access node and a device connected to the access node, the packet handling system including a decoder that decodes the extracted data packets into a signal and sends the signal to a physical medium connector connected to the main module; and

wherein the packet handling system sends an acknowledgment signal via the packet stream distributor when an addressed data packet has been successfully extracted from the packet stream.