UNITED STATES DISTRICT COURT
`FOR THE EASTERN DISTRICT OF TEXAS
`TYLER DIVISION
`
`
`
`
`
`Case No.: 6:11-CV-492-LED
`
`JURY TRIAL DEMANDED
`
`NETWORK-1 SECURITY SOLUTIONS, INC.,
`
`Plaintiff,
`
`v.
`
`Alcatel-Lucent USA Inc., Alcatel-Lucent Holdings
`Inc., Allied Telesis, Inc., Avaya Inc., AXIS
`Communications AB, AXIS Communications, Inc.,
`Dell Inc., GarrettCom, Inc., Hewlett-Packard
`Company, Huawei Technologies Co., Ltd., Huawei
`Technologies USA Inc., Juniper Networks, Inc.,
`NEC Corporation, NEC Corporation of America,
`Polycom, Inc., Samsung Electronics Co., Ltd.,
`Samsung Electronics America, Inc., Samsung
`Telecommunications America, LLC, ShoreTel, Inc.,
`Sony Corporation, Sony Corporation of America,
`Sony Electronics Inc.,
`
`
`
`
`
`
`
`Defendants.
`
`
`
`
`DEFENDANTS’ INVALIDITY CONTENTIONS PURSUANT TO PATENT RULE 3-3
`
`Pursuant to Patent Rule 3-3 and the September 7, 2012 Docket Control Order,
`
`Defendants Alcatel-Lucent USA Inc., Alcatel-Lucent Holdings Inc., Avaya Inc., AXIS
`
`Communications AB, AXIS Communications, Inc., Dell Inc., Hewlett-Packard Company,
`
`Juniper Networks, Inc., Polycom, Inc., Samsung Electronics Co., Ltd., Samsung Electronics
`
`America, Inc., Samsung Telecommunications America, LLC, ShoreTel, Inc., Sony Corporation,
`
`Sony Corporation of America, Sony Electronics Inc. (collectively, “Defendants”) jointly hereby
`
`serve their Invalidity Contentions on Network-1 Security Solutions, Inc. (“Plaintiff” or
`
`“Network-1”).
`
`
`
`DM_US 39973979-1.080340.0507
`
`

`

`PRELIMINARY STATEMENT
`
`On September 24, 2012, Network-1 served its Disclosure of Asserted Claims and
`
`Infringement Contentions under Patent Local Rule 3-1 (“Infringement Contentions”). Network-
`
`1 identified claims 6 and 9 of U.S. Patent No. 6,218,930 (“the ‘930 patent”) as being asserted
`
`against Defendants’ power sourcing equipment, powered devices, and related equipment such as
`
`power supplies (collectively, “the Asserted Claims”).
`
`Depending on the Court’s construction of the claims of the patent-in-suit, and/or
`
`positions that the plaintiff or its expert witness(es) may take concerning claim interpretation,
`
`infringement, and/or invalidity issues, different charted prior art references may be of greater or
`
`lesser relevance and different combinations of these references may be implicated. Given this
`
`uncertainty, the charts may reflect alternative applications of the prior art against the asserted
`
`claims. Nothing stated herein shall be construed as an admission or a waiver of any particular
`
`construction of any claim term. Nor shall anything in these Invalidity Contentions be treated as
`
`an admission that any defendant’s accused products meet any limitations of the claims.
`
`Defendants’ investigation and discovery are ongoing and may, therefore, uncover
`
`additional prior art and additional bases of invalidity not presently known. Defendants reserve
`
`all rights to supplement and/or modify these Invalidity Contentions based upon further discovery
`
`and/or investigations, including rulings by the Court, fact discovery, expert discovery, and/or
`
`third-party discovery. Defendants also reserve the right to revise and/or supplement these
`
`Invalidity Contentions in response to any revision and/or supplementation by Plaintiff of its
`
`Infringement Contentions.
`
`In addition to the invalidity contentions and prior art identified herein, Defendants hereby
`
`incorporate and expressly reserve the right to rely on the invalidity contentions served pursuant
`
`DM_US 39973979-1.080340.0507
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`- 2 -
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`

`

`to Patent L.R. 3-3 in Civil Case Nos. 6:08-cv-030-LED and 6:05-cv-00291-LED, including any
`
`prior art produced and/or cited therein. Defendants also hereby expressly reserve the right to rely
`
`on the prosecution history, reexamination history and/or review history for the ‘930 patent.
`
`I.
`
`P.R. 3-3(A) – THE IDENTITY OF EACH ITEM OF PRIOR ART THAT
`ALLEGEDLY ANTICIPATES EACH ASSERTED CLAIM OR RENDERS IT
`OBVIOUS
`
`A.
`
`Prior Art Patent and Patent Application References
`
`The following prior art patent references, and the patent references listed in Ex. A,
`
`anticipate and/or render obvious the Asserted Claims of the ‘930 patent.
`
`
`
`1
`
`2
`
`3
`
`4
`
`5
`
`6
`
`7
`
`8
`
`Number
`
`USPN 5,991,885
`(Chang ‘885 patent)
`DFNDTS-00001733-00001751
`
`USPN 4,254,305
`(Treiber or ‘305 patent)
`DFNDTS-00001525-00001536
`
`USPN 6,246,748
`(Yano or ‘748 patent)
`DFNDTS-00001835-00001844
`
`US Prov. No. 60/115,628
`PowerDsine provisional)
`DFNDTS-00001476-00001491
`
`USPN 6,473,608
`(PowerDsine patent or ‘608 patent)
`DFNDTS-00001915-00001997
`
`USPN 6,115,468
`(De Nicolo or ‘468 patent)
`DFNDTS-00001765-00001772
`
`USPN 5,994,998
`(Fisher or ‘998 patent)
`DFNDTS-00001752-00001764
`
`Country of Origin
`
`Date of Issue
`
`United States
`
`11/23/1999
`
`United States
`
`03/03/1981
`
`United States
`
`06/12/2001
`
`United States
`
`01/12/1999 (Filed)
`
`United States
`
`10/29/2002
`
`United States
`
`09/05/2000
`
`United States
`
`11/30/1999
`
`USPN 6,762,675
`
`United States
`
`07/13/2004
`
`DM_US 39973979-1.080340.0507
`
`- 3 -
`
`
`
`

`

`
`
`Number
`
`Country of Origin
`
`Date of Issue
`
`(Cafiero or ‘675 patent)
`DFNDTS-00002179-00002187
`
`USPN 6,480,510
`(Binder or ‘510 patent)
`DFNDTS-00001998-00002018
`
`USPN 6,571,181
`(Rakshani or ‘181 patent)
`DFNDTS-00002091-00002109
`
`USPN 5,396,555
`(Shibata ‘555 patent)
`DFNDTS-00001635-00001654
`
`USPN 6,640,308
`(Keyghobad or ‘308 patent)
`DFNDTS-00002110-00002131
`
`USPN 5,675,813
`(Holmdahl or ‘813 patent)
`DFNDTS-00001664-00001680
`
`USPN 4,862,158
`(Keller or ‘158 patent)
`DFNDTS-00001556-00001566
`
`USPN 5,368,041
`(Shambroom or ‘041 patent)
`DFNDTS-00001618-00001634
`
`USPN 5,884,086
`(Amoni or ‘086 patent)
`DFNDTS-00001709-00001724
`
`USPN 5,949,806
`(Ness or ‘806 patent)
`DFNDTS-00001725-00001732
`
`USPN 5,289,359
`(Ziermann or ‘359 patent)
`DFNDTS-00001595-00001604
`
`USPN 6,459,175
`(Potega or ‘175 patent)
`
`10
`
`11
`
`12
`
`13
`
`14
`
`15
`
`16
`
`17
`
`18
`
`19
`
`20
`
`United States
`
`11/12/2002
`
`United States
`
`05/27/2003
`
`United States
`
`03/07/1995
`
`United States
`
`10/28/2003
`
`United States
`
`10/07/1997
`
`United States
`
`08/29/1989
`
`United States
`
`11/29/1994
`
`United States
`
`03/16/1999
`
`United States
`
`09/07/1999
`
`United States
`
`02/22/1994
`
`United States
`
`10/01/2002
`
`DM_US 39973979-1.080340.0507
`
`- 4 -
`
`
`
`

`

`
`
`Number
`
`Country of Origin
`
`Date of Issue
`
`21
`
`22
`
`23
`
`24
`
`25
`
`26
`
`27
`
`28
`
`29
`
`30
`
`31
`
`DFNDTS-00001853-00001914
`
`USPN 6,526,516
`(Ishikawa or ‘516 patent)
`DFNDTS-00002019-00002071
`
`USPN 6,889,095
`(Eidson or ‘095 patent)
`DFNDTS-00002188-00002199
`
`USPN 4,961,222
`(Johansson or ‘222 patent)
`DFNDTS-00001567-00001570
`
`USPN 6,125,448
`(Schwan or ‘448 patent)
`DFNDTS-00001773-00001796
`
`USPN 4,535,401
`(Penn or ‘401 patent)
`DFNDTS-00001537-00001549
`
`USPN 5,216,704
`(Williams or ‘704 patent)
`DFNDTS-00001583-00001594
`
`USPN 6,650,622
`(Austermann or ‘622 patent)
`DFNDTS-00002145-00002170,
`DFNDTS-00004762-00004830
`
`USPN 5,345,592
`(Woodmas or ‘592 patent)
`DFNDTS-00001605-00001617
`
`USPN 6,643,566
`(Lehr ‘566 patent)
`DFNDTS-00002132-00002144
`
`USPN 7,466,819
`(Lehr ‘819 patent)
`DFNDTS-00002200-00002216
`
`USPN 7,612,470
`(Pincu or ‘470 patent)
`
`United States
`
`02/25/2003
`
`United States
`
`05/03/2005
`
`United States
`
`10/02/1990
`
`United States
`
`09/26/2000
`
`United States
`
`08/13/1985
`
`United States
`
`06/01/1993
`
`United States
`
`11/18/2003
`
`United States
`
`09/06/1994
`
`United States
`
`11/04/2003
`
`United States
`
`12/16/2008
`
`United States
`
`11/03/2009
`
`DM_US 39973979-1.080340.0507
`
`- 5 -
`
`
`
`

`

`
`
`Number
`
`Country of Origin
`
`Date of Issue
`
`32
`
`33
`
`34
`
`35
`
`36
`
`37
`
`38
`
`39
`
`40
`
`41
`
`42
`
`DFNDTS-00002217-00002240
`
`USPN 5,815,086
`(Ivie or ‘086 patent)
`DFNDTS-00001688-00001708
`
`USPN 6,728,372
`(Soree or ‘372 patent)
`DFNDTS-00002171-00002178
`
`USPN 5,396,636
`(Gallagher or ‘636 patent)
`DFNDTS-00001655-00001663
`
`USPN 4,685,129
`(Gavrilovich or ‘129 patent)
`DFNDTS-00001550-00001555
`
`WO 98/54843
`(Fisher or ‘843 patent)
`DFNDTS-00002316-00002344
`
`WO 98/57248
`(Chang ‘248 patent)
`DFNDTS-00002345-00002383
`
`USPN 4,992,774
`(McCullough or ‘774 patent)
`DFNDTS-00001571-00001582
`
`USPN 6,348,874
`(Cole or ‘874 patent)
`DFNDTS-00001845-00001852
`
`USPN 4,184,054
`(Shibata ‘054 patent)
`DFNDTS-00001492-00001524
`
`USPN 5,754,644
`(Akhteruzzaman or ‘644 patent)
`DFNDTS-00001681-00001687
`
`USPN 6,535,983
`(McCormack or ‘983 patent)
`DFNDTS-00002072-00002090
`
`United States
`
`11/29/1998
`
`United States
`
`04/27/2004
`
`United States
`
`03/07/1995
`
`United States
`
`08/04/1987
`
`WO
`
`WO
`
`12/03/1998
`
`12/17/1998
`
`United States
`
`02/12/1991
`
`United States
`
`02/19/2002
`
`United States
`
`01/15/1980
`
`United States
`
`May 19, 1998
`
`United States
`
`March 18, 2003
`
`DM_US 39973979-1.080340.0507
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`
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`

`

`
`
`43
`
`44
`
`45
`
`46
`
`47
`
`48
`
`49
`
`50
`
`Number
`
`JP H6-189535
`(Satou)
`DFNDTS-00000001-00000019;
`DFNDTS-00004865-00004865
`
`JP H09-261264
`(Nakahi)
`DFNDTS-00000106-00000128
`
`JP H10-13576
`(Matsuno)
`DFNDTS-00000129-00000151
`
`JP H9-034561
`(Yamada)
`DFNDTS-00000091-00000105
`
`JP H07-307793
`(Okamoto)
`DFNDTS-00000044-00000090
`
`JP H7-154513
`(Mori)
`DFNDTS-00000020-00000043
`
`U.S. Patent No. 6,178,514
`(Wood or ‘514 patent)
`DFNDTS-00001797-1834
`
`WO 1996/023377
`(Hunter)
`DFNDTS-00002241-00002315
`
`
`
`B.
`
`Prior Art Publications
`
`Country of Origin
`
`Date of Issue
`
`Japan
`
`July 8, 1994
`
`Japan
`
`Japan
`
`Japan
`
`Japan
`
`Japan
`
`Publication Date:
`October 3, 1997.
`Issued as JP3402913
`on May 6, 2003.
`
`Publication Date:
`January 16, 1998
`
`Publication Date:
`February 7, 1997
`
`Publication Date:
`November 21, 1995
`
`Publication Date:
`June 16, 1995. Issued
`as JP3459452 on
`October 20, 2003
`
`United States
`
`January 23, 2001
`
`WIPO
`
`January 8, 1996
`
`The following prior art publications, and the publications listed in Ex. A, anticipate
`
`and/or render obvious the Asserted Claims of the ‘930 patent.
`
`
`
`Title
`
`Date of Publication
`
`Author or Publisher
`
`DM_US 39973979-1.080340.0507
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`

`

`Pursuant to P.R.3-4, Defendants have served, concurrently with these Invalidity
`
`Contentions, the documents required by P.R. 3-4(b). The individual Defendants have served,
`
`concurrently with these Invalidity Contentions, the documents required by P.R. 3-4(a).
`
`VI. ADDITIONAL PRIOR ART
`
`In addition to the prior art references identified above, Defendants list in Exhibit A,
`
`which is incorporated herein in its entirety, additional prior art references that are pertinent to the
`
`invalidity of the ‘930 patent, copies of which are being produced with these Invalidity
`
`Contentions. At this time, Defendants are not providing claim charts for each of these additional
`
`references for various reasons, including because some of them have similar disclosures to the
`
`prior art references for which invalidity charts have been provided, because some were
`
`discovered recently and Defendants have not had a fair opportunity to analyze them, and because
`
`some are used as supporting references in an obviousness combination. However, Defendants
`
`reserve the right to revise their Invalidity Contentions to rely on these references to prove the
`
`invalidity of the asserted claims of the ‘930 patent in a manner consistent with the Federal Rules
`
`of Civil Procedure, the Court’s Local Rules, and the Patent Local Rules.
`
`
`
`
`
`Dated: December 19, 2012
`
`Respectfully submitted,
`
`
`
` _/s/_David H. Dolkas_________________
`David H. Dolkas (California Bar No. 11180)
`McDERMOTT WILL & EMERY LLP
`275 Middlefield Road, Suite 100
`Menlo Park, CA 94025
`Telephone: (650) 815-7400
`Facsimile: (650) 815-7401
`E-mail: ddolkas@mwe.com
`
`Robert J. Walters (N.C. Bar No. 13208)
`McDERMOTT WILL & EMERY LLP
`
`DM_US 39973979-1.080340.0507
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`

`500 North Capitol Street, NW
`Washington, DC 20001
`Telephone: (202) 756-8000
`Facsimile: (202) 756-8087
`E-mail: rwalters@mwe.com
`
`J. Thad Heartfield (Texas Bar No. 09346800)
`The Heartfield Law Firm
`2195 Dowlen Road
`Beaumont, Texas 77706
`Telephone: (409) 866-3318
`Facsimile: (409) 866-5789
`E-mail: thad@jth-law.com
`
`ATTORNEYS FOR DEFENDANT HEWLETT-
`PACKARD CO.
`
`
`
`
`__/s/_Kenneth R. Adamo________________
`Kenneth R. Adamo
`Texas Bar No. 00846960
`KIRKLAND & ELLIS LLP
`300 North LaSalle
`Chicago, IL 60654
`Telephone: (312) 862-2000
`Facsimile: (312) 862-2200
`Email: kradamo@kirkland.com
`
`ATTORNEY FOR DEFENDANTS SAMSUNG
`ELECTRONICS CO., LTD., SAMSUNG
`ELECTRONICS AMERICA, INC. AND
`SAMSUNG TELECOMMUNICATIONS
`AMERICA LLC
`
`
`
`
`
`
`
`
`
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`
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`DM_US 39973979-1.080340.0507
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`
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`
`
`__/s/_Thomas M. Dunham_______________
`Thomas M. Dunham
`D.C. Bar No. 448407
`Attorney-in-Charge
`J. Michael Woods
`VA Bar No. 73535
`Winston & Strawn LLP
`1700 K Street, NW
`Washington, DC 20006
`Telephone: (202) 282-5000
`Fax: (202) 282-5100
`tdunham@winston.com
`mwoods@winston.com
`
`Deron R. Dacus
`Texas Bar No. 00790553
`The Dacus Firm, P.C.
`821 ESE Loop 323, Suite 430
`Tyler, TX 75701
`903/705-1117 (phone & fax)
`ddacus@dacusfirm.com
`
`ATTORNEYS FOR DEFENDANT, DELL INC.
`
`
`
`__/s/_Lionel M. Lavenue________________
`Lionel M. Lavenue
`lionel.lavenue@finnegan.com
`Troy L. Gwartney
`troy.gwartney@finnegan.com
`Finnegan, Henderson, Farabow, Garrett &
`Dunner, LLP
`Two Freedom Square
`11955 Freedom Dr.
`Reston, VA 20105
`(571) 203-2700 (telephone)
`(202) 408-4400 (facsimile)
`
`ATTORNEYS FOR DEFENDANTS SONY
`CORPORATION, SONY CORPORATION OF
`AMERICA, AND SONY ELECTRONICS INC.
`
`
`
`
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`DM_US 39973979-1.080340.0507
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`
`EXHIBIT C
`
`EXHIBIT C
`
`

`

`Section 103
`Combinations
`
`
`Claim
`6. (preamble)
`
`Method
`for remotely
`powering access
`equipment in a
`data network,
`comprising,
`
`6(a)(1)
`providing a data
`node adapted for
`data switching,
`
`WO 96/23377 to Hunter et. al.
`
`
`
`
`
`WO 96/23377 to Hunter et.al. (“Hunter”)
`
`“A power subsystem and method for providing phantom power and third pair power via a
`computer network bus, the bus including first and second conductors. The phantom power
`subsystem comprises: (1) a power supply having a positive output and a negative output, the
`power supply adapted to provide power via the positive and negative outputs and (2) first
`and second transformers, each of the first and second transformers having a winding, each
`of the windings having a pair of end taps and a center tap, the first conductor coupled to the
`end taps of the winding of the first transformer to allow data communication therebetween,
`the second conductor coupled to the end taps of the winding of the second transformer to
`allow data communication therebetween, the positive and negative outputs of the power
`supply coupled to the center taps of the windings of the first and second transformers,
`respectively, to allow the power supply to transmit the power, via the first and second
`transformers and the first and second conductors, to equipment couplable to the first and
`second conductors.” Abstract.
`“Referring initially to FIGURE 1, illustrated is a system diagram of an interactive
`multimedia system employing the power subsystem of the present invention.” p. 32:2-4.
`
`“A multimedia hub 120 forms a principal component of the system 100. In the illustrated
`embodiment, the multimedia hub 120 contains the following functions:
`10Base-T hub repeater, B-channel switch, isoEthernet 20 interfaces (allowing a multimedia
`PC 125, including an associated video camera 126 and telephone instrument 127, to be
`coupled thereto), encapsulated D channel over IP bridge, encapsulated IP over D-channel
`bridge, tone plant, digital signal processing ("DSPII) functions (such as a 25 conference
`bridge, tone detection, call progress detection, multimedia record/playback and a music
`interface) and a System Network Management Protocol ("SNMP") agent. Thus, it is readily
`apparent that most of the system 100 functions involving translation or bridging among
`standards is handled in the multimedia hub 120.” 32:16-33:2.
`
`“A 10Base-T hub 170 provides 24 SNMP-managed 10 Base-T ports. The 10Base-T hub 170
`further provides an Ethernet 20 AU interface and a single 10Base-F network interface.”
`34:18-20.
`
`
`
`1
`
`

`

`WO 96/23377 to Hunter et. al.
`
`Claim
`
`
`
`WO 96/23377 to Hunter et.al. (“Hunter”)
`
`
`Section 103
`Combinations
`
`
`
`Fig. 1.
`“Referring initially to FIGURE 1, illustrated is a system diagram of an interactive
`multimedia system employing the power subsystem of the present invention.” p. 32:2-4.
`
`“A multimedia hub 120 forms a principal component of the system 100. In the illustrated
`embodiment, the multimedia hub 120 contains the following functions:
`10Base-T hub repeater, B-channel switch, isoEthernet 20 interfaces (allowing a multimedia
`PC 125, including an associated video camera 126 and telephone instrument 127, to be
`coupled thereto), encapsulated D channel over IP bridge, encapsulated IP over D-channel
`bridge, tone plant, digital signal processing ("DSPII) functions (such as a 25 conference
`
`
`
`2
`
`6(a)(2)
`an access device
`adapted for data
`transmission,
`
`
`
`

`

`WO 96/23377 to Hunter et. al.
`
`Claim
`
`WO 96/23377 to Hunter et.al. (“Hunter”)
`
`bridge, tone detection, call progress detection, multimedia record/playback and a music
`interface) and a System Network Management Protocol ("SNMP") agent. Thus, it is readily
`apparent that most of the system 100 functions involving translation or bridging among
`standards is handled in the multimedia hub 120.” 32:16-33:2.
`
`“A 10Base-T hub 170 provides 24 SNMP-managed 10 Base-T ports. The 10Base-T hub 170
`further provides an Ethernet 20 AU interface and a single 10Base-F network interface.”
`34:18-20.
`
`
`Section 103
`Combinations
`
`Fig. 1.
`
`
`
`
`
`3
`
`

`

`WO 96/23377 to Hunter et. al.
`
`WO 96/23377 to Hunter et.al. (“Hunter”)
`
`
`Section 103
`Combinations
`
`
`
`at
`
`Claim
`6(a)(3)
`least one data
`signaling pair
`connected
`between the data
`node and the
`access device and
`arranged to
`transmit data
`therebetween,
`
`
`
`Fig. 2.
`
`“A first twisted-pair conductor 240 is coupled to the end taps 222, 223 of the winding 221 of
`the first transformer 220 to allow data communication therebetween. A second twisted-pair
`conductor 250 is coupled to the end taps 232, 233 of the winding 231 of the second
`transformer 230 to allow data communication therebetween.” p. 36:6-12.
`
`“Various connectors are interposed to allow the twisted-pair conductors 240, 250 to be
`rerouted as necessary. These connectors include AU, patch panel, wall and NE-side ISTE
`connectors 297 and instrument-side ISTE and instrument connectors 298. A voice
`instrument 299 is therefore couplable to the equipment 260 and receives both data and
`
`
`
`4
`
`

`

`WO 96/23377 to Hunter et. al.
`
`WO 96/23377 to Hunter et.al. (“Hunter”)
`
`
`power therefrom.” 38:21-27.
`
`Section 103
`Combinations
`
`
`
`Claim
`
`a
`
`6(a)(4)
`main power
`source connected
`to supply power
`to the data node,
`
`Fig. 2.
`
`“The phantom powering subsystem 200 comprises a power supply 210 having a positive
`output 211 and a negative output 212. The power supply 210 is adapted to provide power
`via the positive and negative outputs 211, 212.” p. 35:27-36:1. The data node is necessarily
`powered by a power source.
`
`
`
`
`
`5
`
`

`

`WO 96/23377 to Hunter et. al.
`
`WO 96/23377 to Hunter et.al. (“Hunter”)
`
`
`Claim
`6(a)(5)
`
`and a
`secondary power
`source arranged
`to supply power
`from the data
`node via said data
`signaling pair to
`the access device,
`
`Fig. 2.
`
`“The phantom powering subsystem 200 comprises a power supply 210 having a positive
`output 211 and a negative output 212. The power supply 210 is adapted to provide power
`via the positive and negative outputs 211, 212.” p. 35:27-36:1.
`
`
`
`
`
`6
`
`Section 103
`Combinations
`Moreover, this element
`would have been
`obvious to one of
`ordinary skill in the art
`in view of the teachings
`of Hunter when
`considered alone or in
`combination with the
`teachings as set forth in
`any one of the following
`references:
`US 4,184,054,
`US 4,254,305,
`US 4,535,401,
`US 4,862,158,
`US 4,961,222,
`US 5,289,359,
`US 5,345,592,
`US 5,368,041,
`US 5,675,813,
`US 5,754,644,
`US 5,949,806,
`US 5,991,885,
`US 6,178,514,
`US 6,246,748,
`US 6,473,608,
`US 6,480,510,
`US 6,535,983,
`US 6,571,181,
`US 6,643,566,
`US 6,728,372,
`
`

`

`Section 103
`Combinations
`US 7,466,819,
`US 7,612,470,
`JP H10-13576,
`US 60/115,628,
`JP H6-189535,
`WO 98/57248.
`
`The accompanying
`claim charts for these
`references, including the
`specific citation and
`information regarding
`their disclosure with
`respect to this element,
`are incorporated by
`reference as if fully set
`forth here.
`
` A
`
` person of ordinary
`skill in the art would
`have been motivated to
`combine features from
`one of the prior art
`references listed above
`with the network
`elements set forth in the
`Hunter reference to form
`the claimed combination
`of the ’930 patent. The
`references listed above
`disclose the use of
`
`WO 96/23377 to Hunter et. al.
`
`Claim
`
`WO 96/23377 to Hunter et.al. (“Hunter”)
`
`
`
`
`7
`
`

`

`WO 96/23377 to Hunter et. al.
`
`Claim
`
`WO 96/23377 to Hunter et.al. (“Hunter”)
`
`
`
`
`6(b) delivering
`a low level
`current from said
`main power
`source to the
`access device
`over said data
`
`
`
`8
`
`Section 103
`Combinations
`multiple power sources,
`whether explicit or
`implicit, and, therefore,
`a person of ordinary
`skill in the art would
`understand that the
`combination of the
`references listed above
`with the Hunter
`reference would have
`involved mere
`substitution of one
`known element for
`another. To the extent
`the reference is from a
`different field of
`endeavor, such a
`reference is reasonably
`pertinent to the problem
`of delivering power over
`a network, and would
`have been apparent to
`the ordinarily skilled
`artisan.
`Moreover, this element
`would have been
`obvious to one of
`ordinary skill in the art
`in view of the teachings
`of Hunter when
`considered alone or in
`
`

`

`Claim
`signaling pair,
`
`WO 96/23377 to Hunter et. al.
`
`WO 96/23377 to Hunter et.al. (“Hunter”)
`
`
`
`
`9
`
`Section 103
`Combinations
`combination with the
`teachings as set forth in
`any one of the following
`references:
`US 4,184,054,
`US 4,254,305,
`US 4,535,401,
`US 4,862,158,
`US 4,961,222,
`US 5,289,359,
`US 5,345,592,
`US 5,368,041,
`US 5,675,813,
`US 5,754,644,
`US 5,949,806,
`US 5,991,885,
`US 6,178,514,
`US 6,246,748,
`US 6,473,608,
`US 6,480,510,
`US 6,535,983,
`US 6,571,181,
`US 6,643,566,
`US 6,728,372,
`US 7,466,819,
`US 7,612,470,
`JP H10-13576,
`US 60/115,628,
`JP H6-189535,
`WO 98/57248.
`
`
`

`

`Section 103
`Combinations
`The accompanying
`claim charts for these
`references, including the
`specific citation and
`information regarding
`their disclosure with
`respect to this element,
`are incorporated by
`reference as if fully set
`forth here.
`
` A
`
` person of ordinary
`skill in the art would
`have been motivated to
`combine features from
`one of the prior art
`references listed above
`with the other network
`and/or power elements
`set forth in Hunter to
`form the claimed
`combination of the '930
`patent. The references
`listed above disclose
`electrical detection
`methods associated with
`power delivery, and
`therefore, a person of
`ordinary skill in the art
`would understand that
`the combination of the
`
`WO 96/23377 to Hunter et. al.
`
`Claim
`
`WO 96/23377 to Hunter et.al. (“Hunter”)
`
`
`
`
`10
`
`

`

`WO 96/23377 to Hunter et. al.
`
`Claim
`
`WO 96/23377 to Hunter et.al. (“Hunter”)
`
`
`6(c)
`
`sensing a
`
`
`
`
`
`11
`
`Section 103
`Combinations
`references listed above
`with Hunter would have
`involved mere
`substitution of one
`known element for
`another. To the extent
`the references disclose
`sending power over
`separate lines, it would
`have been apparent to an
`ordinarily skilled artisan
`under an obvious to try
`rationale since phantom
`circuits were well
`known in the state of the
`art at the time of the
`’930 invention, and
`there were a finite
`number of options for
`solving such a problem.
`Likewise, to the extent
`the references disclose
`the use of voltage
`instead of current, an
`person of ordinary skill
`in the art would have
`recognized those as
`interchangeable and
`obvious to try.
`
`Moreover, this element
`
`

`

`WO 96/23377 to Hunter et. al.
`
`WO 96/23377 to Hunter et.al. (“Hunter”)
`
`
`Claim
`voltage level on
`the data signaling
`pair in response
`to the low level
`current, and
`
`
`
`
`12
`
`Section 103
`Combinations
`would have been
`obvious to one of
`ordinary skill in the art
`in view of the teachings
`of Hunter when
`considered alone or in
`combination with the
`teachings as set forth in
`any one of the following
`references:
`US 4,184,054,
`US 4,254,305,
`US 4,535,401,
`US 4,862,158,
`US 4,961,222,
`US 5,289,359,
`US 5,345,592,
`US 5,368,041,
`US 5,675,813,
`US 5,754,644,
`US 5,949,806,
`US 5,991,885,
`US 6,246,748,
`US 6,178,514,
`US 6,473,608,
`US 6,480,510,
`US 6,535,983,
`US 6,571,181,
`US 6,643,566,
`US 6,728,372,
`US 7,466,819,
`
`

`

`Section 103
`Combinations
`US 7,612,470,
`JP H10-13576,
`US 60/115,628,
`JP H6-189535,
`WO 98/57248.
`
` The accompanying
`claim charts for these
`references, including the
`specific citation and
`information regarding
`their disclosure with
`respect to this element,
`are incorporated by
`reference as if fully set
`forth here.
`
` A
`
` person of ordinary
`skill in the art would
`have been motivated to
`combine features from
`one of the prior art
`references listed above
`with the other network
`and/or power elements
`set forth in the Hunter
`reference to form the
`claimed combination of
`the ’930 patent. The
`references listed above
`disclose electrical
`
`WO 96/23377 to Hunter et. al.
`
`Claim
`
`WO 96/23377 to Hunter et.al. (“Hunter”)
`
`
`
`
`13
`
`

`

`WO 96/23377 to Hunter et. al.
`
`Claim
`
`WO 96/23377 to Hunter et.al. (“Hunter”)
`
`
`Section 103
`Combinations
`detection methods
`associated with power
`delivery, and therefore, a
`person of ordinary skill
`in the art would
`understand that the
`combination of the
`references listed above
`with the Hunter
`reference would have
`involved mere
`substitution of one
`known element for
`another.
`
`
`
`
`14
`
`

`

`WO 96/23377 to Hunter et. al.
`
`WO 96/23377 to Hunter et.al. (“Hunter”)
`
`
`Claim
`
`6(d)
`controllin
`
`g power supplied
`by said secondary
`power source to
`said access
`device in
`response to a
`preselected
`condition of said
`voltage level.
`
`
`
`Fig. 2.
`
`“The positive and negative outputs 211, 212 of the power supply 210 are coupled to the
`center taps 224, 234 of the windings 221, 231 of the first and second transformers 220, 230,
`respectively, to allow the power supply 210 to transmit the power, via the first and second
`transformers 220, 230 and the first and second twisted-pair conductors 240, 250, to
`equipment 260 couplable to the first and second twisted-pair conductors 240, 250.” 36:12-
`20.
`
`“The subsystem 200 further comprises third and fourth transformers 270, 280. Each of the
`third and fourth transformers 270, 280 has a winding 271, 281 (respectively). Each of the
`
`
`
`15
`
`Section 103
`Combinations
`Moreover, this element
`would have been
`obvious to one of
`ordinary skill in the art
`in view of the teachings
`of Hunter when
`considered alone or in
`combination with the
`teachings as set forth in
`any one of the following
`references:
`US 4,184,054,
`US 4,254,305,
`US 4,535,401,
`US 4,862,158,
`US 4,961,222,
`US 5,289,359,
`US 5,345,592,
`US 5,368,041,
`US 5,675,813,
`US 5,754,644,
`US 5,949,806,
`US 5,991,885,
`US 6,178,514,
`US 6,246,748,
`US 6,473,608,
`US 6,480,510,
`US 6,535,983,
`US 6,571,181,
`US 6,643,566,
`US 6,728,372,
`
`

`

`Section 103
`Combinations
`US 7,466,819,
`US 7,612,470,
`JP H10-13576,
`US 60/115,628,
`JP H6-189535,
`WO 98/57248.
`
`The accompanying
`claim charts for these
`references, including the
`specific citation and
`information regarding
`their disclosure with
`respect to this element,
`are incorporated by
`reference as if fully set
`forth here.
`
` A
`
` person of ordinary
`skill in the art would
`have been motivated to
`combine features from
`one of the prior art
`references listed above
`with the other network
`and/or power elements
`set forth in the Hunter
`reference to form the
`claimed combination of
`the ’930 patent. The
`references listed above
`
`Claim
`
`WO 96/23377 to Hunter et. al.
`
`WO 96/23377 to Hunter et.al. (“Hunter”)
`
`windings has a pair of end taps 272, 273, 282, 283 and a center tap 274, 284. The first
`twisted-pair conductor 240 is coupled to the end taps 272, 273 of the winding 271 of the
`third transformer 270 to allow data communication therebetween. The second twisted-pair
`conductor 250 is coupled to the end taps 282, 283 of the winding 281 of the fourth
`transformer 280 to allow data communication therebetween. positive and negative inputs
`261, 262 of the equipment 260 are coupled to the center taps 274, 284 of the windings 270,
`280 of the third and fourth transformers 270, 280, respectively, to allow the power supply
`210 to transmit the power, via the first and second transformers 220, 230, the first and
`second twisted-pair conductors 240, 250 and the third and fourth transformers 270, 280, to
`the equipment 260.” 36:21-37:9.
`
`"The third and fourth transformers 270, 280 allow the equipment 260 to draw power from
`the twisted-pair conductors 240, 250, thereby enabling phantom powering. In an overall
`LAN, many pieces of equipment, each with its own third and fourth transformers 270, 280,
`can take power as well as data from the bus. Thus, telephone instruments coupled to the
`equipment can remain powered even when associated devices are not or in the event of a
`power failure." 37:10-18.
`
`
`
`16
`
`

`

`WO 96/23377 to Hunter et. al.
`
`Claim
`
`WO 96/23377 to Hunter et.al. (“Hunter”)
`
`
`
`
`9. Method
`according to
`claim 6,
`including the step
`
`
`
`17
`
`Section 103
`Combinations
`disclose mechanisms to
`control power delivery
`in response to
`predetermined
`conditions, and
`therefore, a person of
`ordinary skill in the art
`would understand that
`the combination of the
`references listed above
`with the Hunter
`reference would have
`involved mere
`substitution of one
`known element for
`another. To the extent a
`reference is from a
`different field of
`endeavor, such a
`reference is reasonably
`pertinent to the problem
`of delivering power over
`a network, and would
`have been apparent to
`the ordinarily skilled
`artisan.
`
`Moreover, this element
`would have been
`obvious to one of
`ordinary skill in the art
`
`

`

`WO 96/23377 to Hunter et. al.
`
`WO 96/23377 to Hunter et.al. (“Hunter”)
`
`
`Claim
`of continuing to
`sense voltage
`level and to
`decrease power
`from the
`secondary power
`source if voltage
`level drops on the
`data signaling
`pair, indicating
`removal of the
`access device.
`
`
`
`18
`
`Section 103
`Combinations
`in view of the teachings
`of Hunter when
`considered alone or in
`combination with the
`teachings as set forth in
`any one of the following
`references:
`US 4,184,054
`US 4,254,305
`US 4,535,401
`US 4,862,158
`US 5,345,592
`US 5,368,041
`US 5,754,644
`US 5,949,806
`US 5,991,885
`US 6,178,514,
`US 6,246,748
`US 6,473,608
`US 6,535,983
`US 6,643,566
`US 7,466,819
`US 7,612,470
`JP H10-13576
`US 60/115,628
`JP 6-189535
`WO 98/57248.
`
`The accompanying
`claim charts for these
`references, including the
`
`

`

`Section 103
`Combinations
`specific citation and
`information regarding
`their disclosure with
`respect to this element,
`are incorporated by
`reference as if fully set
`forth here.
`
` A
`
` person of ordinary
`skill in the art would
`have been motivated to
`combine features from
`one of the prior art
`references listed above
`with the other network
`and/or power elements
`set forth in the Hunter
`reference to form the
`claimed combination of
`the ’930 patent. The
`references listed above
`disclose methods of
`detecting changes in
`voltage and/or current
`associated with short
`circuits, disconnects, or
`other abnormalities, and
`therefore, a person of
`ordinary skill in the art
`would understand that
`the combination of the
`
`WO 96/23377 to Hunter et. al.
`
`Claim
`
`WO 96/23377 to Hunter et.al. (“Hunter”)
`
`
`
`
`19
`
`

`

`Section 103
`Combinations
`references listed above
`with the Hunter
`reference would have
`involved mere
`substitution of one
`known element for
`another. To the extent
`the reference is from a
`different field of
`endeavor, such a
`reference is reasonably
`pertinent to the problem
`of delivering power over
`a network, and would
`have been apparent to
`the ordinarily skilled
`artisan.
`
`
`WO 96/23377 to Hunter et. al.
`
`Claim
`
`WO 96/23377 to Hunter et.al. (“Hunter”)
`
`
`
`
`
`
`20
`
`

`

`
`
`Claim
`6. (p