Source: http://www.google.com/patents/US7830858?ie=ISO-8859-1&dq=7810729
Timestamp: 2015-01-28 00:04:37
Document Index: 31221781

Matched Legal Cases: ['art.\n22', 'art.\n80', 'art.\n109', 'art 6', 'art 1', 'art 1', 'art 2', 'art 2']

Patent US7830858 - Local area network of serial intelligent cells - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More »Sign inAdvanced Patent SearchPatentsA serial intelligent cell (SIC) and a connection topology for local area networks using Electrically-conducting media. A local area network can be configured from a plurality of SIC's interconnected so that all communications between two adjacent SIC's is both point-to-point and bidirectional. Each SIC...http://www.google.com/patents/US7830858?utm_source=gb-gplus-sharePatent US7830858 - Local area network of serial intelligent cellsAdvanced Patent SearchPublication numberUS7830858 B2Publication typeGrantApplication numberUS 11/264,011Publication dateNov 9, 2010Filing dateNov 2, 2005Priority dateJul 28, 1998Fee statusPaidAlso published asCA2338663A1, CA2338663C, CN1391747A, CN100389573C, CN101242283A, CN101242283B, DE69923721D1, DE69923721T2, DE69938111D1, DE69938111T2, EP1221228A2, EP1221228A4, EP1221228B1, EP1519517A2, EP1519517A3, EP1519517A8, EP1519517B1, EP1976190A2, EP1976190A3, EP2214347A1, EP2334014A1, US6480510, US7006523, US7016368, US7035280, US7095756, US7187695, US7221679, US7292600, US7424031, US7653015, US7852874, US7965735, US7969917, US7978726, US7986708, US8270430, US8325636, US20020159402, US20040170189, US20040174897, US20050013320, US20050163152, US20060018338, US20060018339, US20060056444, US20060062241, US20060077970, US20060092962, US20060251110, US20060291497, US20070147413, US20070183447, US20070195719, US20070263652, US20080219288, US20100154022, US20130215798, US20130215799, WO2000007322A2, WO2000007322A3Publication number11264011, 264011, US 7830858 B2, US 7830858B2, US-B2-7830858, US7830858 B2, US7830858B2InventorsYehuda BinderOriginal AssigneeMosaid Technologies IncorporatedExport CitationBiBTeX, EndNote, RefManPatent Citations (101), Non-Patent Citations (144), Referenced by (5), Classifications (30), Legal Events (9) External Links: USPTO, USPTO Assignment, EspacenetLocal area network of serial intelligent cellsUS 7830858 B2Abstract A serial intelligent cell (SIC) and a connection topology for local area networks using Electrically-conducting media. A local area network can be configured from a plurality of SIC's interconnected so that all communications between two adjacent SIC's is both point-to-point and bidirectional. Each SIC can be connected to one or more other SIC's to allow redundant communication paths. Communications in different areas of a SIC network are independent of one another, so that, unlike current bus topology and star topology, there is no fundamental limit on the size or extent of a SIC network. Each SIC can optionally be connected to one or more data terminals, computers, telephones, sensors, actuators, etc., to facilitate interconnectivity among such devices. Networks according to the present invention can be configured for a variety of applications, including a local telephone system, remote computer bus extender, multiplexers, PABX/PBX functionality, security systems, and local broadcasting services. The network can use dedicated wiring, as well as existing wiring as the in-house telephone or electrical wiring.
Images(10) Claims(149)
1. A local area network in a building for carrying power and digital data, said network comprising:
a first node including a first data port for coupling to a first data unit, a second node including a second data port for coupling to a second data unit and a third node including a third data port for coupling to a third data unit;
a first wiring segment having two ends and comprising at least one first twisted wire pair at least in part in walls of a building, wherein each end of said first wiring segment is terminated in a respective first terminating connector, at least one of the first terminating connectors is part of an outlet, said first wiring segment connects only said first and second nodes in a point-to-point connection for a first full-duplex data communication of serial digital data over said first wiring segment between the first and second nodes, and said first wiring segment concurrently carries a first DC power signal substantially without interfering with the first communication of serial digital data; and
a second wiring segment having two ends and comprising at least one second twisted wire pair at least in part in walls of a building, wherein each end of said second wiring segment is terminated in a respective second terminating connector, at least one of the second terminating connectors is part of an outlet, said second wiring segment connects only said first and third nodes in a point-to-point connection for a second full-duplex communication of serial digital data over said second wiring segment between the first and third nodes, and said second wiring segment concurrently carries a second DC power signal substantially without interfering with the second communication of serial digital data;
said network is operative to effect the second communication independently from the first communication,
said first node is connectable to a power source to be powered from the power source, and the first and second DC power signals are provided by the power source,
said second node is at least in part powered by the first DC power signal,
said third node is at least in part powered by the second DC power signal,
each node is operative to couple serial digital data to a connected data unit via a respective data port for coupling to the connected data unit digital data carried over said first or second wiring segment, and
the first and second DC power signals are current limited.
2. The network according to claim 1, wherein the first and second full-duplex communications of serial digital data are packet-based communications and said network comprises first and second fuses for respectively effecting the current limiting of the first and second DC signals.
3. The network according to claim 1 wherein each of said nodes is addressable.
4. The network according to claim 3, wherein at least one of said nodes has a manually assigned address.
5. The network according to claim 3, wherein at least one of said nodes has an automatically assigned address.
6. The network according to claim 3, wherein at least one of said nodes has an address assigned by a data unit coupled to said at least one of said nodes.
7. The network according to claim 1, wherein at least one of said nodes is either pluggable into an outlet or attachable to an outlet.
8. The network according to claim 1 configured to function as a multiplexer, wherein said first data port of said first node is coupled to the first data unit to conduct a serial digital data stream containing time multiplexed first and second data streams, the first data stream is routed via said network and coupled only to said data port of said second node for coupling to the second data unit, and the second data stream is routed via the network and coupled only to said data port of said third node for coupling to the said third data unit.
9. The network according to claim 8 configured to function as a voice multiplexer, wherein the first and said second data streams are digitized telephony signals.
10. The network according to claim 9, wherein the serial digital data stream is a PCM highway.
11. The network according to claim 1, further comprising a third wiring segment connecting said second and third nodes to impart a ring topology to said network.
12. The network according to claim 11, further operative to reroute a digital data in the event of failure of one of said wiring segments.
13. The network according to claim 1, wherein at least one of said nodes further comprises: a telephone connector connectable to a telephone set; and a converter for converting between analog telephony and digitized telephony coupled between said data port of said at least one of said nodes and said telephone connector.
14. The network according to claim 13 configured to function as an intercom, wherein two of said nodes are connectable to respective telephone sets, and said network is operative to allow said two telephone sets to communicate with each other.
15. The network according to claim 1 further operative for coupling to a computer plug-in device, wherein at least one of said nodes further comprises a standard computer bus slot coupled to said data port of said at least one of said nodes.
16. The network according to claim 1, wherein at least one of said data ports is Ethernet based.
17. The network according to claim 1, wherein at least one of said nodes is housed within a single enclosure structured to at least in part replace an existing standard outlet.
18. The network according to claim 1, wherein at least one of said nodes is attachable to a wall of a building or is at least in part housed within an outlet.
19. The network according to claim 1 further operative to power an apparatus, wherein said second node further comprises a power connector connectable to the apparatus for coupling the first DC power signal to the apparatus.
20. The network according to claim 19, wherein information carried by a data signal in said network is used to control or monitor the powering of the apparatus.
21. The network according to claim 20, wherein the control is one of: an on/off operation; timing of operations; and a delayed start.
22. The network according to claim 20, wherein the monitoring is power consumption metering.
23. The network according to claim 1, wherein at least one of the wiring segments carries digitized video or digitized voice data.
24. The network according to claim 1, wherein at least one of said wiring segments comprises dedicated DC power conductors carrying the respective DC power signal and data conductors carrying distinct from the DC power conductors and carrying the respective serial digital data.
25. The network according to claim 1, wherein at least one of said wiring segments carries the respective DC power signal and data over the same conductors.
26. The network according to claim 25, wherein the respective DC power signal and data are carried over distinct frequency bands.
27. The network according to claim 1, wherein the network is further operative to accommodate line reversal and provide power protection.
28. The network according to claim 27, wherein the line reversal function uses a diode-based bridge.
29. The network according to claim 1 further operative to function as a repeater, wherein said second and third nodes communicate with each other while said first node repeats data between said first and second wiring segments.
30. The network according to claim 1 further operative as a control network, wherein a first one of said nodes is connectable to a sensor and a second one of said nodes is connectable to an actuator, and wherein operation of the actuator is dependent upon the sensor output.
31. The network according to claim 1 further operative for remote metering, and further comprising a power meter for measuring the first DC power signal.
32. The network according to claim 31 wherein a representation of the measured value of said first DC signal is carried in one of the serial digital data.
33. The network according to claim 1 wherein at least one of said nodes is housed with a connected data unit.
34. A device for coupling power and digital data in a local area network, for use with first and second point-to-point local area network wiring segments each comprising at least one twisted-wire pair and carrying DC power and full-duplex serial digital data signals, said device comprising:
a first connector for connecting to said first wiring segment, for coupling a first DC power signal and first full-duplex serial digital data to said first wiring segment;
a first transceiver coupled to said first connector for communication of the first full duplex serial digital data with a transceiver of the same type as said first transceiver over said first wiring segment;
a second connector for connecting to said second wiring segment for coupling a second DC power signal and second full-duplex serial digital data to said second wiring segment;
a second transceiver coupled to said second connector for communication of the second full-duplex serial digital data with a transceiver of the same type as said second transceiver over said second wiring segment;
a third transceiver coupled to said first and second transceivers for full-duplex digital data communication with a data unit,
a data connector coupled to said third transceiver for connecting to the data unit for coupling between the first and second full-duplex serial digital data and the data unit;
a power connector for coupling to a power source that supplies the first and second DC power signals; and
first and second current limiting circuits respectively coupled between said power connector and the first and second connectors for respectively current limiting of the first and second DC power signals,
wherein the first and second full-duplex serial digital data are independent and distinct from each other.
35. The device according to claim 34, wherein the full-duplex communication of serial digital data is packet-based communication, and said device is addressable.
36. The device according to claim 35, wherein said device has a manually assigned address.
37. The device according to claim 35, wherein said device has an automatically assigned address.
38. The device according to claim 35, wherein said device has an address assigned by the data unit or a further data unit coupled to said device.
39. The device according to claim 34 further functioning as a multiplexer, wherein the communication with the data unit includes communication of a serial digital data stream carrying time multiplexed first and second data streams, and wherein the first data stream is coupled only to said first transceiver, and the second data stream is coupled only to said second transceiver.
40. The device according to claim 39 functioning as a voice multiplexer, wherein the first and said second data streams are digitized telephony signals.
41. The device according to claim 40, wherein the serial digital data stream is a PCM highway.
42. The device according to claim 34 further operative for coupling to a computer plug-in member, wherein said device further comprises a standard computer bus slot coupled to said first transceiver.
43. The device according to claim 34, wherein the third transceiver and said data connector form an interface to the data unit which conforms to an Ethernet standard.
44. The device according to claim 34, further housed within a single enclosure, structured to at least in part replace an existing outlet or to be pluggable into an outlet.
45. The device according to claim 34, wherein at least one of the wiring segments carries digitized video data or digitized voice data.
46. The device according to claim 34, wherein at least one of the wiring segments carries the respective DC power signal over dedicated conductors distinct from the at least one twisted pair carrying the respective serial digital data.
47. The device according to claim 34, wherein at least one of the wiring segments carries the respective power signal and serial digital data over the same conductors, and said device further comprises a power/data combiner/splitter coupled to said first connector for combining and separating the DC power signal and serial digital data.
48. The device according to claim 47, wherein said power/data combiner/splitter is based on passive components.
49. The device according to claim 48, wherein said power/data combiner/splitter is based on a center-tapped transformer or a set including a high pass filter and a low pass filter, wherein said high pass filter passes only the serial digital data and said low pass filter pass only the DC power signal.
50. The device according to claim 34 further operative to function as a repeater, wherein said first and second transceivers are coupled to each other to transparently pass data between said first and second connectors.
51. The device according to claim 34 wherein first and second current limiting circuits are each based on a respective fuse.
52. The device according to claim 34 further operative for remote metering and further comprising a power meter for measuring or sensing the first DC power signal.
53. The device according to claim 52 wherein data representing the measured value of the first DC power signal is carried as part of one of the first and second serial digital data.
54. The device according to claim 34 wherein said device is housed with the data unit.
55. The device according to claim 34 in combination with first and second point-to-point local area network wiring segments.
56. A local area network in a building for wired coupling of a plurality of nodes, the network comprising:
first, second, third and fourth nodes; and
first, second and third point-to-point wiring segments, each wiring segment comprising at least two conductors, wherein:
said first wiring segment is connected only between said first and second nodes for carrying out half-duplex or full-duplex point-to-point digital data communication of first serial digital data and for simultaneously carrying a first power signal, said first node couples the first power signal to said first wiring segment, and said second node is operative to be at least in part powered by the first power signal,
said second wiring segment is connected only between said second and third nodes for carrying out half-duplex or full-duplex point-to-point digital data communication of second serial digital data and for simultaneously carrying a second power signal, said second node couples the second power signal to said second wiring segment, and said third node is operative to be at least in part powered by the second power signal,
said third wiring segment is connected only between said second and fourth nodes for carrying out half-duplex or full-duplex point-to-point digital data communication of third serial digital data and for simultaneously carrying a third power signal, said second node couples the third power signal to said third wiring segment, and said fourth node is operative to be at least in part powered by the third power signal, and
said second node is operative for passing therethrough:
at least part of the first serial digital data and the second serial digital data;
at least part of the first serial digital data and the third serial digital data, and
at least part of the power from the first power signal to the second and third power signals.
57. The network according to claim 56, wherein at least one of said wiring segments comprises one of: a twisted-wire pair; a coaxial cable; telephone wiring; and powerline wiring.
58. The network according to claim 56, wherein at least one of said nodes is addressable in the network.
59. The network according to claim 58, wherein said at least one node has a manually assigned address.
60. The network according to claim 58, wherein said at least one node has an automatically assigned address.
61. The network according to claim 58, wherein said at least one node has an address assigned by a data unit connected to the node.
62. The network according to claim 56, wherein the first, second and third serial digital data are packet-based.
63. The network according to claim 56, wherein at least one of said nodes is wall mounted and at least one of said wiring segments is inside a wall.
64. The network according to claim 56, wherein at least one of said nodes is housed within an outlet.
65. The network according to claim 56, wherein the first, second and third power signals are direct current (DC) power signals.
66. The network according to claim 56, wherein at least one of said third and fourth nodes is operative to power a device connected thereto.
67. The network according to claim 66, further operative for connecting and disconnecting power from a connected device in response to a data element of serial digital data carried over one of said wiring segments connected to said one of said third and fourth nodes.
68. The network according to claim 66, further operative for measuring the power supplied to the connected device and transmitting data representing the measured power as part of the serial digital data carried over a wiring segment connected to said one of said third and fourth nodes.
69. The network according to claim 56, wherein one of said nodes is connectable to a sensor, a distinct other one of said nodes is connectable to an actuator, and the actuator operates in response to the sensor output.
70. The network according to claim 56, wherein at least one of said wiring segments is at least in part in a wall of a house and is connected to a respective one of said nodes via at least one outlet.
71. The network according to claim 56, wherein all of said wiring segments carries the respective power signals over dedicated conductors.
72. The network according to claim 56, wherein at least one of said wiring segments carries a respective power signal and digital data over the same wires.
73. The network according to claim 72, wherein said at least one of said wiring segments carries the respective power signal and digital data using frequency division multiplexing, wherein the power signal is carried over a frequency band distinct from the frequency band carrying the digital data.
74. The network according to claim 56, wherein at least one of said wiring segments comprises a twisted-wire pair, and the power signal is a DC power signal.
75. The network according to claim 56, wherein at least one of said wiring segments is AC power wiring, and the power signal is an AC power signal.
76. The network according to claim 56, wherein at least one of said nodes further comprises a visual indicator for indicating a communication status.
77. The network according to claim 56, wherein the same protocol is used for the data carried over said first, second and third wiring segments.
78. The network according to claim 56, wherein information carried by at least one out of the first, second and third serial digital data is used to control at least one of the first, second and third power signals.
79. The network according to claim 78, wherein the control is one of: on/off operation; timing of operations; and delayed start.
80. The network according to claim 78, wherein at least one of the first, second and third serial digital data signals is used to monitor or sense the power consumption from at least one out of said first, second and third power signals.
81. The network according to claim 56, wherein at least one of the first, second and third power signals is current limited.
82. A device for configuring a network for communication and power coupling communication data and power between a first wiring segment and second and third wiring segments, for use with first, second and third point-to-point wiring segments in a building each having two ends, each wiring segment having at least two conductors and simultaneously carrying serial digital data and power signals, said device comprising:
a first connector for connecting to one end of the first wiring segment that simultaneously carries a first serial bi-directional digital data signal and a first power signal;
a first transceiver coupled to said first connector for conducting point to point communication over the first wiring segment with a mating transceiver connected to the other end; a second connector for connecting to the second wiring segment that simultaneously carries a second serial bi-directional digital data signal and a second power signal;
a second transceiver coupled to said second connector for conducting point to point communication over the second wiring segment, wherein said second transceiver is coupled to said first transceiver for passing at least part of the first data between said first and second transceivers, and said second connector is coupled to said first connector for forming the second power signal from power contained in the first power signal;
a third connector for connecting to the third wiring segment that simultaneously carries a third serial bi-directional digital data signal and a third power signal;
a third transceiver coupled to said third connector for conducting point to point communication over the third wiring segment, wherein said third transceiver is coupled to said first transceiver for passing at least part of the first data between said first and third transceivers, wherein said third connector is coupled to said first connector for forming the third power signal from power contained in the first power signal; and
a single enclosure housing said first, second and third connectors and said first, second and third transceivers.
83. The device according to claim 82, wherein said first, second and third transceivers are operative for full duplex, packet-based communication over respectively connected wiring segments.
84. The device according to claim 82, wherein at least one of the wiring segments comprises one of: a twisted-wire pair; a coaxial cable; telephone wiring; and powerline wiring, and one of said transceivers connected to the at least one wiring segment is operative to conduct digital data over the at least one wiring segment.
85. The device according to claim 82, wherein said device is addressable in the network.
86. The device according to claim 85, wherein said device has a manually assigned address.
87. The device according to claim 85, wherein said device has an automatically assigned address.
88. The device according to claim 85, wherein said device has an address that is assigned by a data unit connected to said device.
89. The device according to claim 82, wherein said device is wall mounted and at least one of the wiring segments is inside a wall in a building.
90. The device according to claim 82, wherein said device is housed within an outlet.
91. The device according to claim 82, wherein the power signals carried in all of the wiring segments are DC power signals.
92. The device according to claim 82, wherein at least one of the wiring segments is at least in part in a wall of a building, and said device is constructed to be connectable to an outlet.
93. The device according to claim 82, wherein at least one of the wiring segments carries the respective power signal over dedicated conductors.
94. The device according to claim 82, wherein at least one of the wiring segments carries the respective digital data and power signals over the same wires.
95. The device according to claim 94, wherein the at least one wiring segment carries the respective digital data and power signals using frequency division multiplexing, wherein the power signal is carried over a frequency band distinct from the frequency band carrying the digital data signal.
96. The device according to claim 82, wherein at least one of the wiring segments is a twisted-wire pair, and the power signal carried by the at least one wiring segment is a DC power signal.
97. The device according to claim 82, wherein at least one of said wiring segment is AC power wiring, and said power signal is a AC power signal.
98. The device according to claim 82, further comprising a visual indicator for indicating a communication status.
99. The device according to claim 82, wherein all of the digital data signals are formatted according to the same protocol.
100. The device according to claim 82 further being wall-mountable.
101. The device according to claim 82 further comprising:
a data/power splitter for separating data and power signals carried over the same conductors and having first, second and third ports, said data/power splitter being operative to bi-directionally pass a digital data signal between said first and second ports, and to pass a DC power signal from said first port to said third port,
wherein said first port of said data/power splitter is coupled to said first connector, said second port of said data/power splitter is coupled to said first transceiver, and said third port of said data/power splitter is coupled to said second and third connectors.
102. The device according to claim 101 wherein said data/power splitter comprises a center-tapped transformer.
103. The device according to claim 101 wherein said data/power splitter comprises a low pass filter coupled between said first and third ports, and a high pass filter coupled between said first and second ports.
104. The device according to claim 82 further comprising:
a data/power combiner for combining data and power signals to be carried over the same conductors and having first, second and third ports, said data/power combiner being operative to bi-directionally pass a digital data signal between said first and second ports, and to pass a DC power signal from said third port to said first port,
wherein said first port of said data/power splitter is coupled to said second connector, said second port of said data/power splitter is coupled to said second transceiver, and said third port of said data/power splitter is coupled to said first connector.
105. The device according to claim 104 wherein said data/power splitter comprises a center-tapped transformer.
106. The device according to claim 104 wherein said data/power splitter comprises a low pass filter coupled between said first and third ports, and a high pass filter coupled between said first and second ports.
107. The device according to claim 82, wherein information carried in at least one out of the first, second and third serial digital data signals is used to control at least one of the first, second and third power signals.
108. The device according to claim 107, wherein the control is one of: an on/off operation, timing of operations; and delayed start.
109. The device according to claim 107, wherein the at least one of the data signals is used to monitor the power consumption of at least one of second and third power signals.
110. The device according to claim 82 further comprising a current limiter for limiting the current of at least one of the first, second and third power signals.
111. A device for coupling to a DC power signal and a packet-based full-duplex serial digital data signal simultaneously carried over an Ethernet-based local area network (LAN) wiring comprising at least one twisted-wire pair, said device comprising:
a LAN wiring connector for connecting to the wiring;
a power/data splitter having first, second and third ports, wherein only the DC power signal is passed from said first port to said second port, and only the digital data signal is passed between said first and third ports, and wherein said power/data splitter comprises at least one center tap transformer, and wherein said first port is coupled to said LAN wiring connector;
a LAN transceiver coupled to said third port of said power/data splitter for point-to-point communication of the packet-based full duplex serial digital data with a transceiver of the same type as said LAN transceiver over said LAN wiring;
a power supply for DC voltage converting coupled to and powered from said second port of said power/data splitter, said power supply having a power source port;
a diode bridge coupled between said LAN wiring connector and said power supply for ensuring proper voltage polarity feeding to said power supply in case of wires swapping, wherein said LAN transceiver is connected to said power source port for being powered from said power supply;
a data port coupled to said LAN transceiver and connectable to a data unit for coupling the packet-based full-duplex serial digital data signal to the data unit; and
a visual indicator powered by said power supply for indicating the device status,
wherein the device is addressable in the LAN.
112. The device according to claim 111, wherein said device has a manually assigned address.
113. The device according to claim 111, wherein said device has an automatically assigned address.
114. The device according to claim 111, wherein said device has an address assigned by the data unit.
115. The device according to claim 111 further operative for coupling to a computer plug-in device, wherein said device further comprises a standard computer bus slot coupled to said data port and coupled to power the computer plug-in device from said power supply.
116. The device according to claim 111 in combination with a single enclosure housing said device, said single enclosure being structured to at least in part substitute for an existing outlet or to be pluggable into an outlet.
117. The device according to claim 111, wherein said power/data splitter consists of only passive components.
118. The device according to claim 111 wherein: the data unit is a wired digital data unit; said data port comprises a digital data connector connectable to the wired digital data unit; and said device further comprises a further transceiver coupled between said LAN transceiver and said digital data connector for bi-directional digital data communication with said wired digital data unit.
119. The device according to claim 118 wherein the communication with said wired digital data unit is full duplex and based on a standard parallel interface.
120. The device according to claim 118 wherein the communication with said wired digital data unit is full duplex standard serial communication.
121. The device according to claim 120, wherein said data unit has an Ethernet based interface.
122. The device according to claim 111 further comprising firmware and a processor executing said firmware, and wherein said processor is coupled to said LAN transceiver for controlling said LAN transceiver.
123. The device according to claim 111 further operative to power the data unit, wherein said data port is coupled to said power supply for powering the connected data unit therefrom.
124. The device according to claim 111 further operative for sensing a physical phenomenon, wherein said data unit is an analog sensor for sensing a physical phenomenon, and wherein said device further comprises an analog to digital converter coupled between said data port and said LAN transceiver for converting analog signals to digital signals.
125. The device according to claims 124, wherein the digital data signal contains digitized audio or video data, and said sensor is an audio or video device.
126. The device according to claim 111 further operative for producing a physical phenomenon, wherein said data unit is an analog actuator for producing the physical phenomenon, and wherein said device further comprises a digital to analog converter coupled between said data port and said LAN transceiver for converting digital signals to analog signals.
127. The device according to claims 126, wherein the digital data signal contains digitized audio or video data, and said actuator is an audio or video device.
128. The device according to claim 111 further operative for telephony use wherein: the packet-based full-duplex serial digital data comprises digitized telephony data; the data unit is a telephony apparatus said device further comprises connected to constitute a termination of a telephone link; and a converter coupled between said LAN transceiver and said data port for coupling the digitized telephony data to the telephony apparatus.
129. The device according to claim 128 wherein the telephony apparatus is an analog telephone set, and wherein said data port comprises a standard analog telephone connector.
130. The device according to claim 128 in combination with an enclosure enclosing said device and the telephony apparatus enclosure.
131. The device according to claim 111 further enclosed with the data unit coupled to said device.
132. A device for coupling to a cable that simultaneously carries a DC power signal over two dedicated conductors and a half-duplex serial digital data signal over at least one twisted-wire pair, said device comprising:
a wiring connector for connecting to the cable;
a transceiver coupled to said wiring connector for being powered from the DC power signal and for point-to-point communication of the half duplex serial digital data with a transceiver of the same type as said LAN transceiver over said cable;
a data port coupled to said transceiver and couplable to a data unit for coupling the half-duplex serial digital data signal to the data unit; and
a visual indicator coupled to said wiring connector to be powered by the power signal for indicating a status of said device,
wherein: said device is addressable; the data unit is a wired digital data unit; said data port comprises a digital data connector connectable to the wired digital data unit; and said device further comprises a further second transceiver coupled between said transceiver and said digital data connector for bi-directional digital data communication with said wired digital data unit.
133. The device according to claim 132, wherein said device has a manually assigned address.
134. The device according to claim 132, wherein said device has an automatically assigned address.
135. The device according to claim 132, wherein said device has an address assigned by said data unit.
136. The device according to claim 132 further operative for coupling to a computer plug-in device, wherein said device further comprises a standard computer bus slot coupled to said data port and coupled to power the computer plug-in device from said DC power signal.
137. The device according to claim 132 in combination with a single enclosure housing said device, said single enclosure being structured to at least in part substitute for an existing outlet or to be pluggable into an outlet.
138. The device according to claim 132 wherein the communication with said wired digital data unit is full duplex and based on a standard parallel interface.
139. The device according to claim 132 wherein the communication with said wired digital data unit is full duplex standard serial communication.
140. The device according to claim 139, wherein said data unit has an Ethernet based interface.
141. The device according to claim 132 further operative to power the data unit, wherein said data port is coupled to said power supply for powering the connected data unit therefrom.
142. A device for coupling to a cable that simultaneously carries a DC power signal over two dedicated conductors and a half-duplex serial digital data signal over at least one twisted-wire pair, said device comprising:
a transceiver coupled to said wiring connector for being powered from the DC power signal and for point-to-point communication of the half duplex serial digital data with a transceiver of same type as said LAN transceiver over said cable;
wherein: said device is addressable; and said device further comprises firmware and a processor executing said firmware, and wherein said processor is coupled to said transceiver for controlling said transceiver.
143. A device for coupling to a cable that simultaneously carries a DC power signal over two dedicated conductors and a half-duplex serial digital data signal over at least one twisted-wire pair, said device comprising:
wherein: said device is addressable; said device is further operative for sensing a physical phenomenon; said data unit is an analog sensor for sensing a physical phenomenon; and said device further comprises an analog to digital converter coupled between said data port and said transceiver for converting analog signals to digital signals.
144. The device according to claims 143, wherein the digital data signal contains digitized audio or video data, and said sensor is an audio or video device.
145. A device for coupling to a cable that simultaneously carries a DC power signal over two dedicated conductors and a half-duplex serial digital data signal over at least one twisted-wire pair, said device comprising:
wherein: said device is addressable; said device is further operative for producing a physical phenomenon; said data unit is an analog actuator for producing the physical phenomenon; and said device further comprises a digital to analog converter coupled between said data port and said transceiver for converting digital signals to analog signals.
146. The device according to claims 145, wherein the digital data signal contains digitized audio or video data, and said actuator is an audio or video device.
147. A device for coupling to a cable that simultaneously carries a DC power signal over two dedicated conductors and a half-duplex serial digital data signal over at least one twisted-wire pair, said device comprising:
wherein: said device is addressable; said device is further operative for telephony use; the packet-based full-duplex serial digital data signal comprises digitized telephony data; the data unit is a telephony apparatus connected to constitute a termination of a telephone link; and said device further comprises a converter coupled between said transceiver and said data port for coupling the digitized telephony data to the telephony apparatus.
148. The device according to claim 147 wherein the telephony apparatus is an analog telephone set, and wherein said data port comprises a standard analog telephone connector.
149. The device according to claim 147 in combination with an enclosure enclosing said device and the telephony apparatus. Description
This is a continuation of patent application Ser. No. 10/178,223, filed Jun. 25, 2002, now U.S. Pat. No. 7,016,368 which itself is a continuation of U.S. patent application Ser. No. 09/123,486 filed Jul. 28, 1998, now U.S. Pat. No. 6,480,510, issued Nov. 12, 2002
Prior art in this field includes U.S. Pat. No. 5,684,826 to Ratner, U.S. Pat. No. 5,491,463 to Sargeant et al., U.S. Pat. No. 5,504,454 to Daggett et al., U.S. Pat. No. 5,351,272 to Abraham, U.S. Pat. No. 5,404,127 to Lee et al., U.S. Pat. No. 5,065,133 to Howard, U.S. Pat. No. 5,581,801 to Spriester et al., U.S. Pat. No. 4,772,870 to Reyes, and U.S. Pat. No. 4,782,322 to Lechner et al. Other patents can be found in U.S. Class 340/310 (sub-classes. A/R and others) and International Class H04M 11/04.
As noted above, SIC's in a communicating pair communicate bidirectionally. For example, SIC 704 can initiate communication (as a sender) to SIC 702 (as a receiver), but SIC 704 can just as well initiate simultaneous communication (as a sender) to SIC 700 (as a receiver). Bidirectional communication can take place simultaneously, and herein is taken to be equivalent to �full duplex� communication. In addition, as noted above, the communication between the SIC's of a communicating pair is independent of the communication between the SIC's of any other communicating-pair, in that these communications neither preclude nor affect one another in any way. Furthermore, every communication between SIC's is a �point-to-point communication�, which term herein denotes a communication that takes place between exactly one sender and exactly one receiver. This is in contrast to a bus-based communication, in which there are many (potential) receivers and many (potential) senders. Consequently, in the topology according to the present invention, there is automatically a termination in the physical layer at each end of a connection (a SIC), both simplifying the installation and insuring more reliable communication.
The SIC topology described above can be modified to allow for single failure correction. In such a case, the SIC's are connected in a network with redundant paths, such as a circular topology as shown in FIG. 8. In this example, a SIC 800 is connected to a SIC 802, which is in turn connected to a SIC 804, which is in turn connected to a SIC 806, which is in turn-connected to SIC 800. When connected in such configuration, any single failure in any conductor, such as in conductor pair 810, will not effect the system operation, as data routing from any SIC to any other SIC can be achieved via an alternate path. The term �circular topology� herein denotes the topology of any local area network of SIC's according to the present invention which contains at least two communication paths between two different SIC's. For example, in FIG. 8, there are two communication paths from SIC 800 to SIC 804: one communication path is from SIC 800 to SIC 802 to SIC 804, and the other path is from SIC 800 to SIC 806 to SIC 804. Circular topology provides redundant communication paths that increase the immunity of the local area network to communication faults. It should be noted that the circular topology according to the present invention, as shown in FIG. 8, differs significantly from the well-known �Token Ring topology� of the prior art, as discussed following.
2. Telephone as Payload. In this configuration, the telephone capability is retained, and telephony data may be integrated into the data communication of the local area network. One of the SIC's (usually the one closest to a public telephone network interface) or other dedicated module interconnects (via the communication interface for example) to the network interface (NI). This unit emulates a telephone interface to the NI, so that public network operation is transparent and continues to perform as normal. However, the signals associated with the telephone interface, either the voice itself and the control/signaling (on hook/off hook, ringing, etc.), are digitized and transmitted in the network as data stream, as part of the communication taking place in the network. In the SIC's interfaced to telephones, these signals are converted back to analog (or in any original form) and thus can be used with standard telephones. In this case, telephone functionality is fully retained. However, failure in the communication network may result in loss of the telephone service. This can be improved by means of a system which disconnects the SIC's circuitry and restores the original wiring routing (this can be easily implemented by relays, which bypass the SIC's upon failure detection, manual intervention, or other relevant occasion).
Patent CitationsCited PatentFiling datePublication dateApplicantTitleUS404721Apr 25, 1889Jun 4, 1889 Louis messerUS405422Dec 18, 1888Jun 18, 1889F OneApparatus for the manufacture of steelUS2680162Feb 6, 1953Jun 1, 1954Bell Telephone Labor IncAutomatic line testing and switching circuitUS3370125May 26, 1964Feb 20, 1968Sound Craft Systems IncAuxiliary loud-speaker systemUS3539727Feb 10, 1969Nov 10, 1970Bell Telephone Labor IncBatteryless data receiver having power supply isolation between detection circuits and signal outputUS3659277Jun 18, 1970Apr 25, 1972Control Data CorpReceiver-transmitter apparatusUS3699523Apr 28, 1970Oct 17, 1972Schlumberger InstrumentationMethod and apparatus for addressing different data points from a central stationUS3702460Nov 30, 1971Nov 7, 1972John B BloseCommunications system for electric power utilityUS3717858Aug 12, 1970Feb 20, 1973D HaddenTwo conductor telemetering systemUS3806814Apr 26, 1972Apr 23, 1974Hughes Aircraft CoPhantom subscriberUS3835334Apr 13, 1972Sep 10, 1974Trt Telecom Radio ElectrRemote power supply for repeatersUS3836888May 22, 1972Sep 17, 1974Boenke CVariable message length data acquisition and retrieval system and method using two-way coaxial cableUS3870822Feb 14, 1972Mar 11, 1975Post OfficeSupplying a charging current by way of telephone lines or the likeUS3922490Jun 18, 1973Nov 25, 1975Pettis Charles DAlarm and utility meter reading system employing telephone linesUS3924077Jul 5, 1973Dec 2, 1975Blakeslee Thomas RPulse code modulation time division multiplex telephone systemUS3959772Jun 17, 1975May 25, 1976Yokogawa Electric Works, Ltd.Two-wire signal transmission systemUS3968333Sep 18, 1973Jul 6, 1976Superior Continental CorporationBattery charger control circuit for telephone transmission systemsUS3975594Feb 10, 1975Aug 17, 1976Siemens AktiengesellschaftApparatus utilizing a phantom circuit for connecting additional subscribers to a telecommunication systemUS4012734Feb 9, 1976Mar 15, 1977American Science & Engineering, Inc.Synchronous power communicatingUS4173714Jun 3, 1977Nov 6, 1979Tie/Communications, Inc.Communication circuit with combined power feed and data transmission over a phantom channelUS4197431Oct 2, 1978Apr 8, 1980Digital Telephone Systems, Inc.Subscriber loop feed apparatusUS4232200Oct 23, 1978Nov 4, 1980United Networks, Inc.Dialing systemUS4241243Dec 4, 1978Dec 23, 1980Gte Lenkurt Electric (Canada) Ltd.Power regulator for use with line signal repeaters which are remotely poweredUS4272759Jun 23, 1978Jun 9, 1981Xerox Corporation16 Bit analog to digital converterUS4303993Oct 10, 1979Dec 1, 1981Honeywell Information Systems Inc.Memory present apparatusUS4339750Aug 20, 1980Jul 13, 1982Rosemount Inc.Low power transmitterUS4339816May 29, 1980Jul 13, 1982International Telephone And Telegraph CorporationConferencing apparatus and methods for a frequency division multiplex communications systemUS4367557May 25, 1979Jan 4, 1983Stern Joseph LWired broadcasting systemsUS4373117Nov 3, 1980Feb 8, 1983Universal Data Systems, Inc.DC to DC converter for line powered modemUS4389694Oct 8, 1980Jun 21, 1983Pemco CorporationCable continuity monitoring systemUS4395590Nov 3, 1980Jul 26, 1983Universal Data Systems, Inc.Line powered modemUS4413229Jun 2, 1981Nov 1, 1983Grant William OMethod and apparatus for remote indication of faults in coaxial cable R-F transmission systemsUS4415774Nov 25, 1981Nov 15, 1983Universal Data Systems, Inc.Line powered modem automatic answer device powered from equipmentUS4417099Nov 3, 1980Nov 22, 1983Universal Data Systems, Inc.Electro-optical isolator circuit for line powered modemUS4431869Dec 3, 1980Feb 14, 1984Standard Telephones And Cables LimitedTelephone line feedUS4463341Jun 1, 1981Jul 31, 1984Aisin Seiki Kabushiki KaishaSingle conductor multi-frequency electric wiring system for vehiclesUS4467314Mar 29, 1982Aug 21, 1984Westinghouse Electric Corp.Electric utility communication system with field installation terminal and load management terminal with remotely assignable unique addressUS4477896Oct 2, 1981Oct 16, 1984Aker Eric MSingle-wire data transmission system having bidirectional data synchronization, and D.C. power for remote unitsUS4484185Aug 12, 1983Nov 20, 1984Graves James DSafety plug adapterUS4490683Sep 30, 1982Dec 25, 1984Ford Motor CompanyElectronic control switch for a power boost amplifierUS4507721Jul 21, 1983Mar 26, 1985Nippon Telegraph & Telephone Public CorporationDC-DC Converter for remote power feedingUS4509211May 16, 1983Apr 2, 1985Xantech CorporationInfrared extension systemUS4510493Nov 12, 1982Apr 9, 1985International Business Machines Corp.Method and arrangement for local address acquisition by a station in a communication systemUS4523307Nov 30, 1982Jun 11, 1985Astech, Inc.Power line carrier multi telephone extension system for full duplex conferencing and intercom between telephonesUS4534039Feb 16, 1983Aug 6, 1985Develcon Electronics Ltd.Dataset powered by control and data signals from data terminalUS4535401Jun 30, 1982Aug 13, 1985Texas Instruments IncorporatedApparatus and method for providing power from master controller to subcontrollers and data communication therebetweenUS4543450Jan 18, 1984Sep 24, 1985Randy BrandtIntegrated connector and modemUS4551721Oct 7, 1983Nov 5, 1985Honeywell Inc.Method for initializing a token-passing local-area networkUS4578533Feb 17, 1984Mar 25, 1986Universal Data Systems, Inc.Switchable line powered modemUS4583214Mar 16, 1984Apr 15, 1986Iwasaki Tsushinki Kabushiki KaishaKey telephone transmission systemUS4592069Feb 8, 1984May 27, 1986Redding Robert JamesLine powered modemUS4593389Jun 28, 1984Jun 3, 1986Henry WurzburgSimultaneous voice and asynchronous data telephoneUS4621170Dec 21, 1982Nov 4, 1986Jeumont-Schneider CorporationMeans of transmitting signals along a line while also providing a direct voltage sourceUS4633217May 22, 1985Dec 30, 1986Yamatake HoneywellCommunication apparatusUS4639714Dec 21, 1984Jan 27, 1987Ferranti Subsea Systems, Ltd.Combined power and control signal transmission systemUS4642607Aug 6, 1985Feb 10, 1987National Semiconductor CorporationPower line carrier communications system transformer bridgeUS4669916Mar 17, 1986Jun 2, 1987Conoco Inc.Unitized TLP anchor template with elevated well templateUS4670874Dec 13, 1984Jun 2, 1987Fujitsu LimitedCommunications system for transmitting and receiving data and voice signals simultaneously through 2-wire signal linesUS4672605Mar 20, 1984Jun 9, 1987Applied Spectrum Technologies, Inc.Data and voice communications systemUS4677646Aug 1, 1985Jun 30, 1987Develcon Electronics Ltd.Dataset powered by control and data signals from data terminalUS4691344Jan 21, 1986Sep 1, 1987Aquatrol CorporationLow-powered remote sensor and telephone line transmitterUS4714912Dec 31, 1986Dec 22, 1987General Electric CompanySingle-conductor power line communications systemUS4719616Jun 5, 1985Jan 12, 1988Yamatake HoneywellCommunication method and apparatusUS4724435Nov 6, 1985Feb 9, 1988Applied Spectrum Technologies, Inc.Bi-directional data telemetry systemUS4733380Dec 26, 1984Mar 22, 1988Schlumberger Technology CorporationApparatus and method for acoustically investigating a casing set in a boreholeUS4733389Jul 28, 1986Mar 22, 1988Xerox CorporationDrop cable for a local area networkUS4734919Feb 12, 1982Mar 29, 1988Gold Star Tele-Electric Co., Ltd. IncorporatedCircuit for serial data communication and power transmissionUS4736367Dec 22, 1986Apr 5, 1988Chrysler Motors CorporationSmart control and sensor devices single wire bus multiplex systemUS4742538Jan 29, 1987May 3, 1988Melita Electronic Labs, Inc.Current source and off-hook detectorUS4745391Feb 26, 1987May 17, 1988General Electric CompanyMethod of, and apparatus for, information communication via a power line conductorUS4755792Aug 24, 1987Jul 5, 1988Black & Decker Inc.Security control systemUS4761646May 20, 1986Aug 2, 1988International Business Machines CorporationMethod and system for addressing and controlling a network of modemsUS4766402Aug 6, 1987Aug 23, 19883Com CorporationApparatus for matching unbalanced R. F. baseband signals to balanced signals on a twisted two-wire lineUS4772870Nov 20, 1986Sep 20, 1988Reyes Ronald RPower line communication systemUS4780714Jul 21, 1986Oct 25, 1988Siemens AktiengesellschaftSelective voltage supply system for data network distributorUS4782322Mar 26, 1987Nov 1, 1988Transec Financiere S.A.Amplitude modulation of control signals over electrical power lines utilizing the response of tuning fork filtersUS4785448Feb 25, 1987Nov 15, 1988Reichert Andrew RSystem for communicating digital data on a standard office telephone systemUS4788527Sep 17, 1984Nov 29, 1988Johansson Fritz HApparatus and method for device control using a two conductor power lineUS4799211Jul 23, 1987Jan 17, 1989Digital Equipment CorporationApparatus and method for storing performance parameters of local area network system membersUS4803485Mar 23, 1987Feb 7, 1989Amp IncorporatedLan communication system and medium adapter for use therewithUS4803719Jun 4, 1987Feb 7, 1989Ulrich Thomas JMethod for powering telephone apparatus and telephone apparatus powered directly from the telephone line without external powerUS4806905Oct 1, 1986Feb 21, 1989Honeywell Inc.Transmitter for transmitting on a two-wire transmitting lineUS4807225Feb 2, 1987Feb 21, 1989American Telephone And Telegraph Company, At&T Technologies, Inc.Telephone line carrier systemUS4809296Feb 11, 1987Feb 28, 1989Bbc Brown, Boveri Ltd.Method for transmitting data via the lines of a power supply systemUS4809339Jan 27, 1987Feb 28, 1989Kelvin ShihSupplying power from a constantly available sourceUS4814941Oct 19, 1987Mar 21, 1989Steelcase Inc.Power receptacle and nested line conditioner arrangementUS4815106Apr 16, 1986Mar 21, 1989Adaptive Networks, Inc.Power line communication apparatusUS4821319May 5, 1987Apr 11, 1989Alcatel Usa Corp.Single line telephone communication systemUS4825349Apr 25, 1988Apr 25, 1989Alcatel CitEmergency D.C. power supply with the emergency state being indicated by polarity reversalUS4866602Nov 9, 1987Sep 12, 1989Microsoft CorporationPower supply for a computer peripheral device which positions a cursor on a computer displayUS4866757Dec 23, 1987Sep 12, 1989Nilssen Ole KCombined telephone and power distribution systemUS4890102May 26, 1987Dec 26, 1989Cabletron, Inc.Visual display for communication network monitoring and troubleshootingUS4896349Mar 25, 1988Jan 23, 1990Matsushita Electric Industrial Co., Ltd.Communication controller in a home bus systemUS4899131Apr 19, 1987Feb 6, 1990Aktiebologet ElectroluxLocal control system for domestic appliances and alarm devicesUS4901218Mar 4, 1988Feb 13, 1990Renishaw Controls LimitedCommunications adaptor for automated factory systemUS4918690Nov 10, 1987Apr 17, 1990Echelon Systems Corp.Network and intelligent cell for providing sensing, bidirectional communications and controlUS4924492Mar 22, 1988May 8, 1990American Telephone And Telegraph CompanyMethod and apparatus for wideband transmission of digital signals between, for example, a telephone central office and customer premisesUS4926158Feb 1, 1989May 15, 1990Zeigler John RPowered communication linkUS4937811Feb 24, 1989Jun 26, 1990General Instrument CorporationCommunication networkUS5471190 *Apr 15, 1992Nov 28, 1995Timothy D. SchoechleMethod and apparatus for resource allocation in a communication network systemUS6009479 *May 30, 1997Dec 28, 1999Dell Usa, L.P.System and method for assigning unique addresses to agents on a system management bus* Cited by examinerNon-Patent CitationsReference1"Integrated Services Digital Network (ISDN)", International Telecommunications Union, vol. III, Fascicle III .8, 9-pages, 1988.2�High-Speed Cable Modems�, pp. 1-246 by Albert A. Azzam, 1997, ISBN: 0-07-006417-2 (276 pages).3�High-Speed Cable Modems�, pp. 247-570 by Albert A. Azzam, 1997, ISBN: 0-07-006417-2 (321 pages).4�High-Speed Networking with LAN Switches�, by Gilbert Held, 1997, ISBN: 0-471-18444-6 (281 pages).5�Interconnections Bridges and Routers�, by Radia Perlman, 1992, ISBN: 0-201-56332-0 (393 pages).6�JVC Introduces Ethernet Compatible Wireless LAN System�; Business Wire Sep. 26, 1995 (1 page).7�JVC Introduces First Ethernet Compatible Wireless LAN System�; Business Wire Nov. 8, 1935 (1 page).8�Macworld Networking Bible�, Second Edition pp. 1-331, by Dave Kosiur and Joel M. Snyder, 1994, ISBN: 1-56884-194-9 (354 pages).9�Macworld Networking Bible�, Second Edition pp. 332-688, by Dave Kosiur and Joel M. Snyder, 1994, ISBN: 1-56884-194-9 (363 pages).10�Switching Hubs�Switching to the Fast Track�, by Gary Gunnerson, PC Magazine, Oct. 11, 1994 (24 pages).11�The Complete Modem Reference�, Third Edition, by Gilbert Held, 1997, ISBN: 0-471-15457-1 (488 pages).123Com Impact IQ External ISDN Modem User product brochure; Published Jun. 1996 (4 pages).133Com Product details 3COM NBX 2101PE Basic Phone discontinued undated (3 pages).143ComImpact IQ External ISDN Modem User Guide; Published Jul. 1997 (157 pages).1548-Volt DC Power Supply Connection Guide; 3Com Published Mar. 2000 (12 pages).16An Interoperable Solution for FDDI Signaling Over Shielded Twisted Pair; Advanced Micro Devices, Inc., 18-pages, 1991.17AN1000 Powerline Network Communications Chip Set, Adaptive Networks Inc., 1995 (56 pages).18AN1000EVK Evaluation Unit Manual, Draft 1.0; Adaptive Networks Inc., Document No. 04-3170-01-B Aug. 1996 (31 pages).19Ascend DSLPipe-S Features and specifications; Posted May 12, 1997 (4 pages).20Bearfield, J.M., "Control the Power Interface of USB's Voltage Bus", Electronic Design, U.S., Penton Publishing, Clev. Ohio, vol. 45, No. 15, Jul. 1997, p. 80-86. cited by other .21Building a Lon Talk-to-PLC Gateway, Lon Works Engineering Bulletin; Echelon Corporation, May 1994 (62 pages).22Canned Heat; Data Communications Feb. 1996 (10 pages).23Catalyst 5000 Series; (12 pages).24Catalyst 5000 Series; undated (12 pages).25Catalyst 5000 switching System; Cisco (4 pages).26Centralized Commerical Building Applications with the Lon Works PLT-21 Power Line Transceiver, Lon Works Engineering Bulletin; Echelon Corporation, Apr. 1997 (22 pages).27Cisco Catalyst 5000 ATM Dual PHY LAN Emulation Module; Posted Sep. 24, 1996 (4 pages).28Cisco Catalyst 5000 ATM LAN Emulation Module Data Sheets; 1995 (2 pages).29Cisco Catalyst 5000 Family Fast EtherChannel Switching Modules Data Sheets; 1999 (3 pages).30Cisco Catalyst 5000 Group Switching Ethernet Modules Data Sheets; 1996 (2 pages).31Cisco Catalyst 5000 Group Switching Ethernet Modules; Posted May 6, 1996 (5 pages).32Cisco Catalyst 5000 Product Announcement, Published 1996 (22 pages).33Cisco Catalyst 5000 Series Configuration Worksheet, 1996 (11 pages).34Cisco Catalyst 5000 Switching System Data Sheets; 1996 (2 pages).35Cisco Catalyst 5000; Industry's First Modular, Multilayer-Capable switching System for the Wiring Closet; Posted May 16, 1996 (22 pages).36Cisco Catalyst 5002 Switching System; (4 pages).37CiscoPro EtherSwitch CPW2115; Dec. 1995 (4 pages).38Cisco's 2600 Series Routers, "Quick Start Guide: Cisco 2610 Router, Cabling and Setup," published in 1998.39Claim Chart presented in request for reexamination of U. S. Patent No. 5,841,360 request filed May 26, 2009.40Claim Chart presented in request for reexamination of U.S. Patent No. 6,480,510 request filed Jun. 10, 2009.41Compaq Deskpro 4000S Series of Personal Computers, published in Jul. 1997.42Continuation of IBM LAN Bridge and Switch Summary -undated (68 pages).43Continuation of IBM LAN Bridge and Switch Summary, IBM, published Jan. 1996 (70 pages).44Demand Side Management with Lon Works Power Line Transceivers, Lon Works Engineering Bulletin; Echelon Corporation, Dec. 1996 (36 pages).45Donnan, et al; "Token Ring Access Method and Physical Layer Specifications"; ANSI/IEEE Standard for Local Area Networks; ANSI/IEEE 802.5; 44-pages, 1985.46DSLPipe Reference Guide; by Ascend Communications, Jun. 2, 1997 (162 pages).47DSLPipe User's Guide; by Ascend Communications, Jun. 3, 1997 (245 pages).48Edward Cooper, Broadband Network Technology-An overview for the data and communications industries, Sytek Systems, Mountain View, CA, 1984 (4 pages).49Ethernet Wireless LAN Systems; BYTE Feb. 1996 (3 pages).50Fast Ethernet 100-Mbps Solutions; Posted Mar. 12, 1996 (10 pages).51Forget the Forklift; Data Communications Sep. 1996 (11 pages).52From the Ether�Bob Metcalfe, 'Cheap, reliable �net connections may be as close as an electrical socket�; by Bob Metcalfe Info World Feb. 10, 1997 vol. 19 Issue 6 (4 pages).53Gershon, E., "FDDI on Copper with AMD PHY Components"; Advanced Micro Devices, Inc.; 8-pages, 1991.54Gibson et al; Fiber Distributed Data Interface (FDDI)-Token Ring Physical Layer Protocol (PHY); American National Standard for Information Systems; ANSI X3.148-1988; 34 pages, 1988.55Gibson et al; Fiber Distributed Data Interface (FDDI)�Token Ring Physical Layer Protocol (PHY); American National Standard for Information Systems; ANSI X3.148-1988; 34 pages, 1988.56Gibson et al; Fibre Data Distributed Interface (FDDI)-Token Ring Physical Layer Medium Dependent (PMD); American National Standard for Information Systems; ANSI X3.166-1990; 56 pages, 1990.57Gibson et al; Fibre Data Distributed Interface (FDDI)�Token Ring Physical Layer Medium Dependent (PMD); American National Standard for Information Systems; ANSI X3.166-1990; 56 pages, 1990.58Grayson Evans, The Cebus Standard User'S Guide May 1996 (317 pages).59Hart Field Communication Protocol-An introduction for users and manufacturers' published by the HART Communication Foundation, Austin, Texas, Oct. 1995 (12 pages).60Hart Field Communication Protocol�An introduction for users and manufacturers' published by the HART Communication Foundation, Austin, Texas, Oct. 1995 (12 pages).61Heite C et al: "Powernet-Das Neue Eib-Medium", Elektrotechnik und Informationstechnik, Springer Verlag, Wein, AT, vol. 114, No. 5, 1997, pp. 254-257.62Heite C et al: "Powernet�Das Neue Eib-Medium", Elektrotechnik und Informationstechnik, Springer Verlag, Wein, AT, vol. 114, No. 5, 1997, pp. 254-257.63High Speed Networking with LAN Switches, by Gilbert Held; Copyright 1997 by John Wiley & Sons, Inc. (290 pages).64'High-Speed Cable Modems', pp. 1-246 by Albert A. Azzam, 1997, ISBN: 0-07-006417-2 (276 pages).65'High-Speed Cable Modems', pp. 247-570 by Albert A. Azzam, 1997, ISBN: 0-07-006417-2 (321 pages).66'High-Speed Networking with LAN Switches', by Gilbert Held, 1997, ISBN: 0-471-18444-6 (281 pages).67Hoffman, J.; "Cable, Television, and the Consumer Electronic Bus"; Panasonic Technologies. Inc., pp. 165-173.68IBM LAN Bridge and Switch Summary -undated (108 pages).69IBM LAN Bridge and Switch Summary, IBM, published Jan. 1996 (70 pages).70IEEE Standard for a High Performance serial Bus; IEEE Std 1394-1995 Published 1996 (392 pages).71Intelogis to Present on Stage at Internet Showcase 1998; PR Newswire Jan. 28, 1998 (1 page).72'Interconnections Bridges and Routers', by Radia Perlman, 1992, ISBN: 0-201-56332-0 (393 pages).73Introduction to Pyxos FT Platform; Echelon Corporation, 2007 (34 pages).74IS-60.04; Node Communications Protocol Part 6: Application Layer Specification; Revision Apr. 18, 1996 (129 pages).75ITU-T 1.430 Integrated Services Digital Network-Basic User-Network Interface-Layer 1 Specification. cited by other.76ITU-T 1.430 Integrated Services Digital Network�Basic User-Network Interface�Layer 1 Specification. cited by other.77Keller et al; "Performance Bottlenecks in Digital Movie Systems"; Proceedings of the 4th International Workshop on Network and Operating System Support for Digital Audio and Video, 1993, 9-pages.78Kevin Fogarty, "ZAP! NetWare users get really wired-over electric power lines," Network World, Jul. 3, 1995.79Kevin Fogarty, "ZAP! NetWare users get really wired�over electric power lines," Network World, Jul. 3, 1995.80LAN Emulation; Posted Nov. 15, 1995 (16 pages).81Lavoisard, J. L. et al; "ISDN Customer Equipments"; Communication and Transmission, No. 3, 17-pages, 1987.82Line carrier modems-1: Build a Pair of Line-Carrier Modems (Part 1); Radio Electronics, Jul. 1988, pp. 87-91 by Keith Nichols (7 pages).83Line carrier modems�1: Build a Pair of Line-Carrier Modems (Part 1); Radio Electronics, Jul. 1988, pp. 87-91 by Keith Nichols (7 pages).84Line carrier modems-2: Build a Pair of Line-Carrier Modems (Part 2); Radio Electronics, Aug. 1988, pp. 88-96 by Keith Nichols (5 pages).85Line carrier modems�2: Build a Pair of Line-Carrier Modems (Part 2); Radio Electronics, Aug. 1988, pp. 88-96 by Keith Nichols (5 pages).86Lohse, et al; Fiber Distributed Data Interface (FDDI)-Token Ring Media Access Control (MAC); American National Standard for Information Systems; ANSI X3.139-1987; 62 pages; 1987.87Lohse, et al; Fiber Distributed Data Interface (FDDI)�Token Ring Media Access Control (MAC); American National Standard for Information Systems; ANSI X3.139-1987; 62 pages; 1987.88Lon Works 78kbps Self-Healing Ring Architecture, Lon Works Marketing Bulletin; Echelon Corporation, Aug. 1993 (6 pages).89Lon Works Custom Node Development, Lon Works Engineeering Bulletin; Echelon Corporation, Jan. 1995 (16 pages).90Lon Works for Audio Computer Control Network Applications; Echelon Corporation, Jan. 1995 (30 pages).91Lon Works LPI-10 Link Power Interface Module User's Guide; Echelon Corporation, 1995 (37 pages).92Lon Works LPT-10 Link Power Transceiver User's Guide Version 2.1; Echelon Corporation, 1995 (60 pages).93Lon Works Router User's Guide Revision 3; Echelon Corporation, 1995 (68 pages).94Lon Works Twisted Pair Control Module, User's Guide Version 2; Echelon Corporation, 1992-1996 (50 pages).95LTM-10A User's Guide, Revision 4; Echelon Corporation, 1995-2001 (46 pages).96'Macworld Networking Bible', Second Edition pp. 1-331, by Dave Kosiur and Joel M. Snyder, 1994, ISBN: 1-56884-194-9 (354 pages).97'Macworld Networking Bible', Second Edition pp. 332-688, by Dave Kosiur and Joel M. Snyder, 1994, ISBN: 1-56884-194-9 (363 pages).98Mark Hachman, Compaq to Ride The CEBus; EBN Jan. 22, 1996 (1 page).99Markwalter E. Brian, et al,; CEBus Router Testing; IEEE Transactions on Consumer Electronics Nov. 1991, vol. 37 No. 4 (8 pages).100Motorola announces key new features to CyberSURFR Cable Modem System- undated (3 pages).101Motorola CableComm CyberSURFR Cable Modem Specifications; Apr. 1998 (4 pages).102NBX Corporation's NBX 100,"Network Based Exchange: The Complete Communications Solution," published in 1997.103NetSpeed, "SpeedRunner 202 Customer Premise ATM ADSL Router" published 1997.104PassPort PC Plug in Quick Setup Guide; Intelogis P/N 30030202, date unknown (8 pages).105PL DSK 2.1 Power Line Smart Transceiver Development Support Kit User's Guide; Echelon Corporation, 2005-2006 (18 pages).106PL3120/PL3150 Power Line Smart Transceiver Data Book, Version 2; Echelon Corporation, 1996-2005 (255 pages).107PowerDsine Product Catalogue 1999, pp. 56-79 and 95-105, Israel. cited by other .108RAD Data Comm. Ltd., "Token Ring Design Guide", 1994, #TR-20-01/94, Chapters 1 through 4-21. cited by other .109Serconet, Ltd., v. Netgear, Inc. Case No. CV-06-04646 PJH, Claim Comparison Chart for USP 6,480,510, Jan. 29, 2007.110Serconet, Ltd., v. Netgear, Inc. Case No. CV-06-04646 PJH, Claim Comparison Chart for USP 7,016,368, Jan. 29, 2007.111Serconet, Ltd., v. Netgear, Inc. Case No. CV-06-04646 PJH, Claim Comparison Chart for USP 7,035,280, Jan. 29, 2007.112Serconet, Ltd., v. Netgear, Inc. Case No. CV-06-04646 PJH, Defendant's Invalidity Contentions, Jan. 29, 2007.113Serconet, Ltd., v. Netgear, Inc. Case No. CV-06-04646 PJH, Order Construing Claims, Jul. 30, 2007.114Stallings, W., Local Networks, 2nd edition, 12-pages, 1987.115Stallings, W., Local Networks, 3nd edition, 14-pages, 1990.116Stallings, W., Local Networks, An Introduction, 51-pages, 1984.117Stallings, W., Local Networks, An Introduction, pp. ii, xii-xvi, pp. 373-381, 8-pages, 1984.118Strassberg, Dan; "Home Automation Buses: Protocols Really Hit Home"; EDN Design Feature, Apr. 13, 1995 (9 pages).119Strole, N.: "The IBM Token-Ring Network-A functional Overview"; IEEE Network Magazine, vol. 1, No. 1, 8-pages, 1987.120Strole, N.: "The IBM Token-Ring Network�A functional Overview"; IEEE Network Magazine, vol. 1, No. 1, 8-pages, 1987.121SuperStack II Baseline 10/100 switch; 3Com Published Apr. 1998 (8 pages).122SuperStack II Baseline Switch User Guide; 3Com Published Mar. 1998 (8 pages).123SuperStack II Desktop Switch User Guide; 3Com Published Jun. 1997 (148 pages).124SuperStack II Desktop Switch; 3Com Sep. 1996 (2 pages).125SuperStack II Entry Hub User Guide; 3Com Published Nov. 1996 (8 pages).126SuperStack II PS Hub User Guide; 3Com Published Jul. 1997 (188 pages).127SuperStack II Switch 610 User Guide; 3Com Published May 1999 (54 pages).128Technical Report TR-001 ADSL Forum System Reference Model May 1996 (6 pages).129'The Complete Modem Reference', Third Edition, by Gilbert Held, 1997, ISBN: 0-471-15457-1 (488 pages).130The Mac Reborn; Macworld Sep. 1996, p. 104-115 (16 pages).131The Mac reborn; Macworld vol. 13, Issue 9, Sep. 1996 (9 pages).132Universal Serial Bus Specification Revision 1.0; Jan. 15, 1996 (268 pages).133Universal Serial Bus Specification-Rev. 1.0, Jan. 15, 1996; Sec. 4.2.1 pp. 29-30. cited by other.134Universal Serial Bus Specification�Rev. 1.0, Jan. 15, 1996; Sec. 4.2.1 pp. 29-30. cited by other.135Universal Serial Bus Specification-Rev. 1.0, Jan. 15, 1996; Sec. 7.2.1-7.2.1.5 pp. 131-135. cited by other .136Universal Serial Bus Specification�Rev. 1.0, Jan. 15, 1996; Sec. 7.2.1-7.2.1.5 pp. 131-135. cited by other .137Universal Serial Bus Specification-Rev. 1.0, Jan. 15, 1996; Sec. 9.2.1-9.2.5.1 pp. 170-171. cited by other .138Universal Serial Bus Specification�Rev. 1.0, Jan. 15, 1996; Sec. 9.2.1-9.2.5.1 pp. 170-171. cited by other .139Universal Serial Bus Specification-Rev. 1.0, Jan. 15, 1996; Sec. 9.6.2 pp. 184-185. cited by other.140Universal Serial Bus Specification�Rev. 1.0, Jan. 15, 1996; Sec. 9.6.2 pp. 184-185. cited by other.141Using the Lon Works PLT-22 Power Line Transceiver in European Utility Application, Version 1; Echelon Corporation, 1996-1999 (118 pages).142VISPLAN-10 Infrared Wireless LAN system; JVC May 1996 (10 pages).143Willett, M., Token-ring Local Area Networks-An Introduction; IEEE Network Magazine, vol. 1, No. 1, 6-pages, 1987.144Willett, M., Token-ring Local Area Networks�An Introduction; IEEE Network Magazine, vol. 1, No. 1, 6-pages, 1987.Referenced byCiting PatentFiling datePublication dateApplicantTitleUS8165740 *Jul 1, 2004Apr 24, 2012Robert Bosch GmbHMethod and device for bidirectional single-wire data transmissionUS8325636 *Nov 16, 2005Dec 4, 2012Mosaid Technologies IncorporatedLocal area network of serial intelligent cellsUS8351582 *Aug 4, 2008Jan 8, 2013Mosaid Technologies IncorporatedNetwork for telephony and data communicationUS20060077970 *Nov 16, 2005Apr 13, 2006Serconet, LtdLocal area network of serial intelligent cellsUS20080217076 *Jul 1, 2004Sep 11, 2008Rolf KraemerMethod and Device for Bidirectional Single-Wire Data Transmission* Cited by examinerClassifications U.S. Classification370/351, 370/436, 370/502International ClassificationH04L12/28, H04B3/54, H04J99/00, H04L12/46, H04L29/06Cooperative ClassificationY10S370/908, H04M19/02, H04B2203/5458, H04L12/2838, H04L29/0602, H04B2203/5437, H04L2012/2843, H04L2012/2845, H04B3/54, H04B3/542, H04L12/2801, H04B2203/5445, H04L5/14, H04B2203/545, H04L12/2803European ClassificationH04L12/28H6, H04L12/28H, H04B3/54, H04B3/54A, H04L12/28B, H04M19/02, H04L29/06CLegal EventsDateCodeEventDescriptionSep 9, 2014ASAssignmentOwner name: CPPIB CREDIT INVESTMENTS INC., AS LENDER, CANADAFree format text: U.S. PATENT SECURITY AGREEMENT (FOR NON-U.S. GRANTORS);ASSIGNOR:CONVERSANT INTELLECTUAL PROPERTY MANAGEMENT INC.;REEL/FRAME:033706/0367Effective date: 20140611Owner name: ROYAL BANK OF CANADA, AS LENDER, CANADASep 3, 2014ASAssignmentEffective date: 20140820Free format text: CHANGE OF ADDRESS;ASSIGNOR:CONVERSANT INTELLECTUAL PROPERTY MANAGEMENT INC.;REEL/FRAME:033678/0096Owner name: CONVERSANT INTELLECTUAL PROPERTY MANAGEMENT INC.,Aug 7, 2014ASAssignmentEffective date: 20140611Owner name: CONVERSANT INTELLECTUAL PROPERTY MANAGEMENT INC.,Owner name: CONVERSANT IP N.B. 276 INC., CANADAFree format text: RELEASE OF SECURITY INTEREST;ASSIGNOR:ROYAL BANK OF CANADA;REEL/FRAME:033484/0344Owner name: CONVERSANT IP N.B. 868 INC., CANADAApr 9, 2014FPAYFee paymentYear of fee payment: 4Apr 7, 2014ASAssignmentOwner name: MOSAID TECHNOLOGIES INCORPORATED, CANADAEffective date: 20090224Free format text: CORRECTIVE ASSIGNMENT TO CORRECT THE INCORRECT PATENT NUMBER 7,480,709 AND SERIAL NUMBER 10/998,565PREVIOUSLY RECORDED ON REEL 022449 FRAME 0101. 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