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`US009019838B2
`
`c12) United States Patent
`Austermann, III et al.
`
`(10) Patent No.:
`(45) Date of Patent:
`
`US 9,019,838 B2
`Apr. 28,2015
`
`(54) CENTRAL PIECE OF NETWORK
`EQUIPMENT
`
`(75)
`
`Inventors: John F. Austermann, III, Huntington
`Woods, MI (US); Marshall B.
`Cummings, Troy, MI (US)
`
`(73) Assignee: ChriMar Systems, Inc., Farmington
`Hills, MI (US)
`
`( *) Notice:
`
`Subject to any disclaimer, the term of this
`patent is extended or adjusted under 35
`U.S.C. 154(b) by 0 days.
`
`(21) Appl. No.: 13/615,734
`
`(22) Filed:
`
`Sep. 14, 2012
`
`(65)
`
`Prior Publication Data
`
`US 2013/0010846 Al
`
`Jan. 10, 2013
`
`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 12112
`G08B 13114
`H04L 1124
`H04B 3154
`(52) U.S. Cl.
`CPC .. H04L 1124 (2013.01); H04B 3154 (2013.01);
`
`(2006.01)
`(2006.01)
`(2006.01)
`(2006.01)
`
`H04B 2203/5445 (2013.01); H04B 2203/5458
`(2013.01); H04B 2203/5466 (2013.01); H04B
`2203/547 (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
`
`U.S. PATENT DOCUMENTS
`
`202,495 A
`244,426 A
`406,567 A
`
`4/1878 Watson
`7/1881 Bell
`7/1889 Edison
`(Continued)
`
`FOREIGN PATENT DOCUMENTS
`
`CA
`CN
`
`2/1998
`2183106 A1
`2050662 u
`111990
`(Continued)
`
`OTHER PUBLICATIONS
`
`"10BaseT Takes Off' (LAN Magazine, May 1991).
`(Continued)
`
`Primary Examiner- Chi H Pham
`Assistant Examiner- Soon-Dong D Hyun
`(74) Attorney, Agent, or Firm- Harness, Dickey & Pierce,
`P.L.C.
`
`ABSTRACT
`(57)
`A central piece of network equipment having at least one
`Ethernet connector having first and second pairs of contacts
`used to carry BaseT Ethernet communication signals and at
`least one electrical supply used by the central piece of net(cid:173)
`work equipment to change impedance between at least one of
`the contacts of the first pair of contacts and at least one of the
`contacts of the second pair of contacts.
`
`92 Claims, 13 Drawing Sheets
`
`Page 1
`
` Dell Inc.
` Exhibit 1001
`
`

`
`(56)
`
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`JP
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`JP
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`JP
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