US5283789A — Communication system providing data and televisio…

Claim 1

Independent Claim 143 words

A communication system for transmitting and receiving both broadband and baseband electrical signals representative of broadband and baseband information, respectively, said system comprising, in combination: (a) a backbone communication network including: (1) a first subassembly network for presenting said broadband signals in an unbalanced mode; and (2) a second subassembly network for presenting said baseband signals; (b) a distribution communication network for simultaneously transmitting said broadband signals and said baseband signals to at least one user work station via a twisted pair wire; and (c) circuit means, coupling said first and second subassembly networks with said distribution communication network, for converting the unbalanced broadband signals received from said first subassembly network to balanced broadband signals and transmitting said balanced broadband signals on said twisted pair wire, and for transmitting said baseband signals received from said second subassembly network on said twisted pair wire.

Claim 2

Dependent Claim 143 words

A communication system for transmitting and receiving both broadband and baseband electrical signals representative of broadband and baseband information, respectively, said system comprising, in combination: (a) a backbone communication network including: (1) a first subassembly network for presenting said broadband signals in an unbalanced mode; and (2) a second subassembly network for presenting said baseband signals; (b) a distribution communication network for simultaneously transmitting said broadband signals and said baseband signals to at least one user work station via a twisted pair wire; and (c) circuit means, coupling said first and second subassembly networks with said distribution communication network, for converting the unbalanced broadband signals received from said first subassembly network to balanced broadband signals and transmitting said balanced broadband signals on said twisted pair wire, and for transmitting said baseband signals received from said second subassembly network on said twisted pair wire.

Claim 3

Dependent Claim 31 words

The communication system defined in claim 1, wherein said circuit means pass said baseband signals from said second subassembly network to said twisted pair wire while having substantially no effect thereon.

Claim 4

Dependent Claim 35 words

The communication system defined in claim 2, wherein said second subassembly network presents said baseband signals in a balanced mode and said baseband signals are transmitted on said twisted pair wire in a balanced mode.

Claim 5

Dependent Claim 34 words

The communication system defined in claim 1, wherein said distribution communication network transmits said broadband signals and said baseband signals to a plurality of user work stations via a plurality of twisted pair wires.

Claim 6

Dependent Claim 29 words

The communication system defined in claim 4, further comprising RF splitter means, associated with said first subassembly, for partitioning and distributing said broadband signals to said distribution communication network.

Claim 7

Dependent Claim 53 words

The communication system defined in claim 1, wherein said distribution communication network is further operative to receive said broadband signals and said baseband signals from said at least one work station, and wherein said circuit means is bi-directional and is operative to transmit said broadband signals and said baseband signals in either direction.

Claim 8

Dependent Claim 45 words

The communication system defined in claim 1, wherein said circuit means includes an RF signal port coupled to said first subassembly network and a balun transformer connected to said RF signal port for converting said broadband signals from an unbalanced mode to a balanced mode.

Claim 9

Dependent Claim 44 words

The communication system defined in claim 6, wherein said circuit means includes an RF signal port coupled to said first subassembly network and a balun transformer connected to said RF signal port for converting said broadband signals between unbalanced mode and a balanced mode.

Claim 10

Dependent Claim 26 words

The communication system defined in claim 7, wherein said balun transformer includes at least two windings, wound on a spool which is electrically and magnetically transparent.

Claim 11

Dependent Claim 26 words

The communication system defined in claim 8, wherein said balun transformer includes at least two windings, wound on a spool which is electrically and magnetically transparent.

Claim 12

Dependent Claim 14 words

The communication system defined in claim 9, wherein said spool is made of plastic.

Claim 13

Dependent Claim 14 words

The communication system defined in claim 10, wherein said spool is made of plastic.

Claim 14

Dependent Claim 46 words

The communication system defined in claim 7, wherein said circuit means further include high-pass coupling means, connected between said balun transformer and said twisted pair wire, for passing said broadband signals to said wire and inhibiting the transmission of said baseband signals to said balun transformer.

Claim 15

Dependent Claim 74 words

The communication system defined in claim 8, wherein said distribution network comprises two twisted pair wires between said backbone communication network and each user work station for bi-directional transmission, wherein said circuit means further include high-pass coupling means, connected between said balun transformer and each of said twisted pair wires, for passing said broadband signals between said wires and said balun transformer and inhibiting the transmission of said baseband signals to said balun transformer.

Claim 16

Dependent Claim 55 words

The communication system defined in claim 13, wherein said circuit means further include a data signal port coupled to said second assembly network and low-pass coupling means, connected between said data signal port and said twisted pair wire, for passing said baseband signals and inhibiting the transmission of broadband signals to said data signal port.

Claim 17

Dependent Claim 57 words

The communication system defined in claim 14, wherein said circuit means further include a data signal port coupled to said second assembly network and low-pass coupling means, connected between said data signal port and said two twisted pair wires, for passing said baseband signals and inhibiting the transmission of said broadband signals to said data signal port.

Claim 18

Dependent Claim 61 words

The communication system defined in claim 15, wherein said low-pass coupling means comprise a pair of first wires arranged in parallel and connected between said data signal port and said twisted pair wire, and wherein said high-pass coupling means include at least one second wire arranged in parallel with said first wires and connected at one end to said balun transformer.

Claim 19

Dependent Claim 68 words

The communication system defined in claim 16, wherein said low-pass coupling means comprise two pair of first wires arranged in parallel and connected between said data signal port and a respective set of said twisted pair wires, and wherein said high-pass coupling means include at least one second wire arranged in parallel with each pair of said first wires and connected at one end to said balun transformer.

Claim 20

Dependent Claim 56 words

The communication system defined in claim 17, wherein said pair of first wires are substantially λ/4 in length and said second wire is substantially λ/8 in length, where λ is the wavelength of propogation at a frequency of said broadband signals, said first and said second wires having a common point of termination at one end.

Claim 21

Dependent Claim 67 words

The communication system defined in claim 18, wherein said two pair of first wires are substantially λ/4 in length and said second wires are substantially λ/8 in length, where λ is the wavelength of propogation at a frequency of said broadband signals, each of said pair of first wires and the respective, associated one of said second wires having a common point of termination at one end.

Claim 22

Dependent Claim 25 words

The communication system defined in claim 19, wherein said first and second wires are wound together on a spool which is electrically and magnetically transparent.

Claim 23

Dependent Claim 32 words

The communication system defined in claim 20, wherein each pair of said first wires and their respective, associated second wires are wound together on a spool which is electrically and magnetically transparent.

Claim 24

Dependent Claim 14 words

The communication system defined in claim 21, wherein said spool is made of plastic.

Claim 25

Dependent Claim 14 words

The communication system defined in claim 22, wherein said spool is made of plastic.

Claim 26

Dependent Claim 121 words

A communication system for transmitting relatively high frequency broadband electrical signals representative of broadband information and for transmitting relatively low frequency baseband electrical signals representative of baseband information, said system comprising, in combination: (a) a length of communications media having at least one twisted pair of wires; and (b) a first multi-signal interface coupler connected to one end of said communications media, said interface coupler including an RF signal port for passing said broadband signals in unbalanced mode, a data signal port for passing said baseband signals and circuit means, connected to said RF signal port and said data signal port, for transmitting both said broadband signals and said baseband signals in a balanced mode on said length of communications media.

Claim 27

Dependent Claim 121 words

A communication system for transmitting relatively high frequency broadband electrical signals representative of broadband information and for transmitting relatively low frequency baseband electrical signals representative of baseband information, said system comprising, in combination: (a) a length of communications media having at least one twisted pair of wires; and (b) a first multi-signal interface coupler connected to one end of said communications media, said interface coupler including an RF signal port for passing said broadband signals in unbalanced mode, a data signal port for passing said baseband signals and circuit means, connected to said RF signal port and said data signal port, for transmitting both said broadband signals and said baseband signals in a balanced mode on said length of communications media.

Claim 28

Dependent Claim 30 words

The communication system defined in claim 25, wherein said circuit means pass said baseband signals from said data signal port to said communications media while having substantially no effect thereon.

Claim 29

Dependent Claim 22 words

The communication system defined in claim 26, wherein said baseband signals are presented to said data signal port in a balanced mode.

Claim 30

Dependent Claim 29 words

The communication system defined in claim 25, further comprising a second multi-signal interface coupler, identical to said first interface coupler, connected to the opposite end of said communications media.

Claim 31

Dependent Claim 33 words

The communication system defined in claim 25, wherein said circuit means includes balun transformer connected to said RF signal port for converting said broadband signals from an unbalanced mode to a balanced mode.

Claim 32

Dependent Claim 26 words

The communication system defined in claim 29, wherein said balun transformer includes at least two windings, wound on a spool which is electrically and magnetically transparent.

Claim 33

Dependent Claim 14 words

The communication system defined in claim 30, wherein said spool is made of plastic.

Claim 34

Dependent Claim 45 words

The communication system defined in claim 29, wherein said circuit means further includes high-pass coupling means, connected between said balun transformer and said communications media, for passing said broadband signals to said media and inhibiting the transmission of said baseband signals to said balun transformer.

Claim 35

Dependent Claim 64 words

The communication system defined in claim 29, wherein said communications media comprise two twisted pair wires for bi-directional transmission, wherein said circuit means further includes high-pass coupling means, connected between said balun transformer and each of said twisted pair wires, for passing said broadband signals between said wires and said balun transformer and inhibiting the transmission of said baseband signals to said balun transformer.

Claim 36

Dependent Claim 43 words

The communication system defined in claim 32, wherein said circuit means further includes low-pass coupling means, connected between said data signal port and said communication media, for passing said baseband signals and inhibiting the transmission of broadband signals to said data signal port.

Claim 37

Dependent Claim 54 words

The communication system defined in claim 33, wherein said circuit means further includes low-pass coupling means, connected between said data signal port and each of said twisted pair wires, for passing said baseband signals between data signal port and said wires and inhibiting the transmission of said broadband signals to said data signal port.

Claim 38

Dependent Claim 60 words

The communication system defined in claim 34, wherein said low-pass coupling means comprise a pair of first wires arranged in parallel and connected between said data signal port and said communications media, and wherein said high-pass coupling means include at least one second wire arranged in parallel with said first wires and connected at one end to said balun transformer.

Claim 39

Dependent Claim 68 words

The communication system defined in claim 35, wherein said low-pass coupling means comprise two pair of first wires arranged in parallel and connected between said data signal port and a respective set of said twisted pair wires, and wherein said high-pass coupling means include at least one second wire arranged in parallel with each pair of said first wires and connected at one end to said balun transformer.

Claim 40

Dependent Claim 56 words

The communication system defined in claim 36, wherein said pair of first wires are substantially λ/4 in length and said second wire is substantially λ/8 in length, where λ is the wavelength of propogation at a frequency of said broadband signals, said first and said second wires having a common point of termination at one end.

Claim 41

Dependent Claim 67 words

The communication system defined in claim 37, wherein said two pair of first wires are substantially λ/4 in length and said second wires are substantially λ/8 in length, where λ is the wavelength of propogation at a frequency of said broadband signals, each of said pair of first wires and the respective, associated one of said second wires having a common point of termination at one end.

Claim 42

Dependent Claim 25 words

The communication system defined in claim 38, wherein said first and second wires are wound together on a spool which is electrically and magnetically transparent.

Claim 43

Dependent Claim 31 words

The communication system defined in claim 39, wherein each pair of said first wires and their respective, associated second wires are wound together on a spool is electrically and magnetically transparent.

Claim 44

Dependent Claim 14 words

The communication system defined in claim 40, wherein said spool is made of plastic.

Claim 45

Dependent Claim 14 words

The communication system defined in claim 41, wherein said spool is made of plastic.

Claim 46

Dependent Claim 127 words

A three-port network for broadband and baseband signals, said network comprising: (a) a first port for passing both broadband and baseband signals; (b) a second port for passing broadband signals; (c) a third port for passing baseband signals; (d) first coupling means comprising a pair of first wires arranged in parallel and connected between said first port and said third port; and (e) second coupling means comprising at least one second wire arranged in parallel with said pair of first wires and connected at one end to said second port, wherein said first coupling means provides inductive, low pass coupling between said third port and said first port; and wherein said second coupling means provides capacitive, high pass coupling between said second port and said first port.

Claim 47

Dependent Claim 127 words

A three-port network for broadband and baseband signals, said network comprising: (a) a first port for passing both broadband and baseband signals; (b) a second port for passing broadband signals; (c) a third port for passing baseband signals; (d) first coupling means comprising a pair of first wires arranged in parallel and connected between said first port and said third port; and (e) second coupling means comprising at least one second wire arranged in parallel with said pair of first wires and connected at one end to said second port, wherein said first coupling means provides inductive, low pass coupling between said third port and said first port; and wherein said second coupling means provides capacitive, high pass coupling between said second port and said first port.

Claim 48

Dependent Claim 62 words

The communication system defined in claim 44, wherein said first coupling means comprise two pair of first wires arranged in parallel and connected between said first port and said third port, and wherein said second coupling means include at least one second wire arranged in parallel with each pair of said first wires and connected at one end to said second port.

Claim 49

Dependent Claim 56 words

The communication system defined in claim 44, wherein said pair of first wires are substantially λ/4 in length and said second wire is substantially λ/8 in length, where λ is the wavelength of propogation at a frequency of said broadband signals, said first and said second wires having a common point of termination at one end.

Claim 50

Dependent Claim 67 words

The communication system defined in claim 45, wherein said two pair of first wires are substantially λ/4 in length and said second wires are substantially λ/8 in length, where λ is the wavelength of propogation at a frequency of said broadband signals, each of said pair of first wires and the respective, associated one of said second wires having a common point of termination at one end.

Claim 51

Dependent Claim 25 words

The communication system defined in claim 44, wherein said first and second wires are wound together on a spool which is electrically and magnetically transparent.

Claim 52

Dependent Claim 32 words

The communication system defined in claim 45, wherein each pair of said first wires and their respective, associated second wires are wound together on a spool which is electrically and magnetically transparent.

Claim 53

Dependent Claim 14 words

The communication system defined in claim 48, wherein said spool is made of plastic.

Claim 54

Dependent Claim 14 words

The communication system defined in claim 49, wherein said spool is made of plastic.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1997-01-31	1997-08-02	1998-02-01	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	2001-01-31	2001-08-02	2002-02-01	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	2005-01-31	2005-08-02	2006-02-01	$7700.00	Window Closed / Lapsed

Communication system providing data and television signals to PC work stations

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