US008902760C1
`
`(12) EX PARTE REEXAMINATION CERTIFICATE (11180th)
`United States Patent
`
`US 8,902,760 C1
`(45) Certificate Issued:
`Austermann, III et al.
`Sep. 18, 2017
`
`(10) Number:
`
`(54) NETWORK SYSTEM AND OPTIONAL
`TETHERS
`
`(75)
`
`Inventors: John F. Austermann, III, Huntington
`Woods, MI (US); Marshall B.
`Cummings, Troy, MI (US)
`
`(73) Assignee: ChriMar Systems, Inc.
`
`Reexamination Request:
`No. 90/013,802, Aug. 29, 2016
`
`Reexamination Certificate for:
`Patent No.:
`8,902,760
`Issued:
`Dec. 2, 2014
`Appl. No.:
`13/615,755
`Filed:
`Sep. 14, 2012
`
`Certificate of Correction issued Jul. 5, 2016
`
`Related U.S. Application Data
`
`(63) Continuation of application No. 13/370,918, filed on
`Feb. 10, 2012, now Pat. No. 8,942,107, which is a
`continuation of application No. 12/239,001, filed on
`Sep. 26, 2008, now Pat. No. 8,155,012, which is a
`continuation of application No. 10/668,708, filed on
`Sep. 23, 2003, now Pat. No. 7,457,250, which is a
`continuation of application No. 09/370,430, filed on
`Aug. 9, 1999, now Pat. No. 6,650,622, which is a
`continuation-in-part
`of
`application
`No.
`PCT/US99/07846, filed on Apr. 8, 1999.
`
`(60) Provisional application No. 60/081,279, filed on Apr.
`10, 1998.
`
`(51)
`
`Int. Cl.
`H04L 12/12
`G083 13/14
`3043 3/54
`3013 24/64
`
`(2006.01)
`(2006.01)
`(2006.01)
`(2011.01)
`
`(2006.01)
`(2006.01)
`
`H04L 1/24
`HOIR 107/00
`(52) U.S. Cl.
`CPC ............... H043 3/54 (2013.01); 3013 24/64
`(2013.01); H04L 1/24 (2013.01); H01R
`2107/00 (2013.01); H04B 2203/547 (2013.01);
`H04B 2203/5445 (2013.01); H04B 2203/5458
`(2013.01); H04B 2203/5466 (2013.01); H04B
`2203/5491 (2013.01); H04B 2203/5495
`(2013.01)
`
`(58) Field of Classification Search
`None
`
`See application file for complete search history.
`
`(56)
`
`References Cited
`
`To view the complete listing of prior art documents cited
`during the proceeding for Reexamination Control Number
`90/013,802, please refer to the USPTO’s public Patent
`Application Information Retrieval (PAIR) system under the
`Display References tab.
`
`Primary Examiner 7 Roland Foster
`
`(57)
`
`ABSTRACT
`
`A BaseT Ethernet system having a piece of central network
`equipment, a piece of BaseT Ethernet terminal equipment,
`and data signaling pairs of conductors having first and
`second pairs used to carry BaseT Ethernet communication
`signals between the piece of central network equipment and
`the piece of BaseT Ethernet terminal equipment. The first
`and second pairs physically connect between the piece of
`BaseT Ethernet terminal equipment and the piece of central
`network equipment. The piece of central network equipment
`having at least one DC supply. The piece of BaseT Ethernet
`terminal equipment having at least one path to draw different
`magnitudes of current flow from the DC supply through a
`loop formed over at least one of the conductors of the first
`pair and at least one of the conductors of the second pair. The
`piece of central network equipment to detect at least two
`different magnitudes of the current flow through the loop.
`
`
`
`Exhibit 2056
`
`Chrimar Page 1
`
`Exhibit 2056
`Chrimar Page 1
`
`

`

`1
`
`EX PARTE
`
`US 8,902,760 C1
`
`2
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`tors of the first pair of conductors and at least one of the
`conductors of the second pair of conductors, the piece
`of central network equipment to detect at least two
`different magnitudes of current flow through the loop.
`145. The BaseT Ethernet system according to any one of
`claim 73, 82-91, 94-100, 104-107, 108-121, 127-132, 134-
`139, or 140-144 wherein the piece of BaseT Ethernet
`terminal equipment is a powered-oif piece of BaseT Ethernet
`equipment.
`146. A BaseT Ethernet system comprising:
`Ethernet cabling having at least first and second pairs of
`conductors used to carry BaseT Ethernet communica-
`tion signals,
`the at
`least first and second pairs of
`conductors physically connect between a piece of
`BaseT Ethernet terminal equipment and a piece of
`central network equipment, the piece of central net-
`work equipment is a BaseT Ethernet hub, the piece of
`central network equipment having at
`least one DC
`supply to provide at least one DC condition across at
`least one of the conductors of the first pair of conduc-
`tors and at least one of the conductors of the second
`
`REEXAMINATION CERTIFICATE
`
`THE PATENT IS HEREBY AMENDED AS
`INDICATED BELOW.
`
`Matter enclosed in heavy brackets [ ] appeared in the
`patent, but has been deleted and is no longer a part of the
`patent; matter printed in italics indicates additions made
`to the patent.
`
`AS A RESULT OF REEXAMINATION, IT HAS BEEN
`DETERMINED THAT:
`
`The patentability of claims 1-72 is confirmed.
`Claims 101-103 and 170-172 are cancelled.
`
`Claims 73, 145, 146 and 219 are determined to be
`patentable as amended.
`173-218,
`and
`147-169
`Claims
`74-100,
`104-144,
`dependent on an amended claim, are determined to be
`patentable.
`
`73. A BaseT Ethernet system comprising:
`Ethernet cabling having at least first and second indi-
`vidual pairs of conductors used to carry BaseT Ethernet
`communication signals, the at least first and second
`individual pairs of conductors physically c01mect
`between a piece of BaseT Ethernet terminal equipment
`and a piece of central network equipment, the piece of
`central network equipment is a BaseTEthernet hub; the
`piece of central network equipment having at least one
`DC supply, the piece of BaseT Ethernet terminal equip-
`ment having at least one path to draw different mag-
`nitudes of current flow via the at least one DC supply
`through a loop formed over at least one of the conduc-
`
`10
`
`15
`
`20
`
`25
`
`30
`
`pairs of conductors, the piece of BaseT Ethernet ter-
`minal equipment having at least one path to change
`impedance within a loop formed over the at least one of
`the conductors of the first pair of conductors and the at
`least one of the conductors of the second pair of
`conductors by changing impedance within the at least
`one path in response to the at least one DC condition
`across the at least one path.
`219. The BaseT Ethernet system according to any one of
`claim 146, 150-152, 155-158, 161-165, 168-169, 173-176,
`179-190, 196-213, or 214-218 wherein the piece of BaseT
`Ethernet
`terminal equipment
`is a powered-oif piece of
`BaseT Ethernet equipment.
`*
`*
`
`*
`
`*
`
`*
`
`Exhibit 2056
`
`Chrimar Page 2
`
`Exhibit 2056
`Chrimar Page 2
`
`