UNITED STATES PATENT AND TRADEMARK OFFICE
`
`BEFORE THE PATENT TRIAL AND APPEAL BOARD
`
`
`
`
`
`DISH Network L.L.C.
`Petitioner
`
`v.
`
`TQ Delta LLC,
`Patent Owner
`
`U.S. Patent No. 9,094,268
`Filing Date: June 4, 2014
`Issue Date: July 28, 2015
`
`Title: Multicarrier Transmission System with Low Power Sleep Mode and Rapid-On
`Capability
`
`
`
`PETITION FOR INTER PARTES REVIEW
`OF U.S. PATENT NO. 9,094,268
`
`
`
`Inter Partes Review No. 2016-___
`
`
`
`
`  
`
`

`
`Table of Contents
`
`
`Page
`
`
`INTRODUCTION .......................................................................................... 1
`I.
`II. MANDATORY NOTICES UNDER 37 C.F.R .............................................. 1
`A.
`Real Party-In-Interest under 37 C.F.R ................................................. 1
`B.
`Related Matters under 37 C.F.R ........................................................... 1
`C.
`Lead and Back-Up Counsel under 37 C.F.R ........................................ 2
`D.
`Service Information .............................................................................. 3
`E.
`Power of Attorney ................................................................................ 3
`III. PAYMENT OF FEES - 37 C.F.R .................................................................. 3
`IV. REQUIREMENTS FOR INTER PARTES REVIEW UNDER 37
`C.F.R ............................................................................................................... 3
`A. Grounds for Standing under 37 C.F.R ................................................. 3
`B.
`Identification of Challenge Under 37 C.F.R ........................................ 4
`C.
`Requirements for Inter Partes Review 37 C.F.R .................................. 5
`BRIEF BACKGROUND OF THE UNDERLYING TECHNOLOGY ......... 5
`V.
`VI. SUMMARY OF THE ’268 PATENT ............................................................ 5
`A.
`Brief Description of the ‘268 Patent .................................................... 5
`B.
`Petitioned Claims of the ‘268 Patent .................................................... 6
`C.
`Priority Claim of the ‘268 Patent ......................................................... 8
`VII. CLAIM CONSTRUCTION UNDER 37 C.F.R ............................................. 9
`A.
`Legal Overview .................................................................................... 9
`B.
`Proposed Claim Constructions ............................................................. 9
`1.
`“Low Power Mode” (all Petitioned Claims) .............................. 9
`2.
`“Transceiver” (all Petitioned Claims) ...................................... 10
`3.
` “Data” (Claims 1, 4, 11, 16) .................................................. 10
`VIII. PERSON HAVING ORDINARY SKILL IN THE ART & STATE
`OF THE ART ............................................................................................... 11
`
` 
`
` 
`
`-i-
`
`

`
`Table of Contents
`(continued)
`
`Page
`
`
`IX. CLAIMS 14 AND 16 ARE ANTICIPATED BY BOWIE
`(GROUND 1) ................................................................................................ 11
`A. Overview of Bowie ............................................................................ 11
`B.
`Independent claim 14 is anticipated by Bowie (Ground 1) ............... 13
`1.
`Preamble 14[a] ......................................................................... 13
`2.
`Claim element 14[b] ................................................................ 15
`3.
`Claim element 14[c] ................................................................. 19
`4.
`Claim element 14[d] ................................................................ 19
`Independent claim 16 (Ground 1) ...................................................... 21
`1.
`Preamble 16[a] ......................................................................... 21
`2.
`Claim element 16[b] ................................................................ 21
`3.
`Claim element 16[c] ................................................................. 22
`4.
`Claim element 16[d] ................................................................ 22
`CLAIMS 1, 2, 4, 11, 12 AND 18 ARE OBVIOUS OVER BOWIE IN
`VIEW OF THE CITED REFERENCES (GROUNDS 2, 3 AND 4) ........... 23
`A. Overview of the Prior Art ................................................................... 23
`1.
`Overview of Morelli ................................................................ 23
`2.
`Overview of 1995 ADSL Standard .......................................... 24
`Bowie, Morelli and 1995 ADSL Standard Are Analogous Art ......... 26
`Claims 1, 2, 11 and 12 are obvious over Bowie in view of
`Morelli and the 1995 ADSL Standard under 35 U.S.C ..................... 26
`1.
`Independent claim 1 – Grounds 2 & 3 ..................................... 26
`a.
`Preamble 1[a] ................................................................. 26
`b.
`Claim element 1[b] ........................................................ 27
`c.
`Claim element 1[c] ........................................................ 28
`
`X.
`
`C.
`
`B.
`C.
`
`
`
` 
`
`-ii-
`
`
`
`

`
`Table of Contents
`(continued)
`
`Page
`
`i.
`
`ii.
`
`“entering the low power mode, wherein a
`transmitter portion of the transceiver does
`not transmit data during the low power
`mode” .................................................................. 28
`“entering the low power mode, wherein … a
`receiver portion of the transceiver receives
`data during the low power mode” ....................... 28
`iii. Motivation to combine Bowie and Morelli
`under Ground 3 .................................................... 30
`Claim element 1[d] ........................................................ 33
`d.
`Dependent claim 2 – Ground 3 ................................................ 38
`Independent claim 11 – Grounds 2 & 3 ................................... 40
`a.
`Preamble 11[a] ............................................................... 40
`b.
`Claim element 11[b] ...................................................... 40
`c.
`Claim element 11[c] ...................................................... 42
`d.
`Claim element 11[d] ...................................................... 42
`Dependent claim 12 – Ground 3 .............................................. 43
`4.
`Claims 4, 14, 16 and 18 are obvious over Bowie in view of
`Morelli under 35 U.S.C ...................................................................... 43
`1.
`Independent claim 4 ................................................................. 43
`a.
`Preamble 4[a] ................................................................. 43
`b.
`Claim element 4[b] ........................................................ 43
`c.
`Claim element 4[c] ........................................................ 44
`d.
`Claim element 4[d] ........................................................ 44
`Independent claim 14 ............................................................... 44
`a.
`Claim element 14[b] ...................................................... 45
`b.
`Claim element 14[c] ...................................................... 45
`
`2.
`3.
`
`2.
`
`-iii-
`
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` 
`
`D.
`
`

`
`Table of Contents
`(continued)
`
`Page
`
`3.
`
`4.
`
`
`
`Independent claim 16 ............................................................... 46
`a.
`Claim element 16[b] ...................................................... 46
`b.
`Claim element 16[c] ...................................................... 46
`Independent claim 18 ............................................................... 47
`a.
`Preamble 18[a] ............................................................... 47
`b.
`Claim element 18[b] ...................................................... 47
`c.
`Claim element 18[c] ...................................................... 47
`d.
`Claim element 18[d] ...................................................... 48
`XI. NO SECONDARY CONSIDERATIONS OF NON-OBVIOUSNESS
`EXIST ........................................................................................................... 48
`XII. CONCLUSION ............................................................................................. 49
`
`
`
` 
`
`-iv-
`
`
`
`

`
`
`
`Ex. No.
`
`
`List of Exhibits
`
`Description of Document
`
`1001
`
`1002
`
`1003
`
`1004
`
`1005
`
`1006
`
`1007
`
`1008
`
`1009
`
`1010
`
`1011
`
`1012
`
`1013
`
`1014
`
`U.S. Patent No. 9,094,268 to Tzannes (“the ’268 patent”)
`
`Declaration of Leo Hoarty (“Hoarty Decl.”)
`
`File History for U.S. Patent No. 9,094,268
`
`U.S. Patent No. 5,956,323 to Bowie (“Bowie”)
`
`U.S. Patent No. 6,236,674 to Morelli, et al. (“Morelli”)
`
`ANSI T1.413-1995 – Network and Customer Installation Interfaces –
`Asymmetric Digital Subscriber Line (ADSL) Metallic Interface (Aug.
`18, 1995) (“1995 ADSL Standard”)
`
`American National Standards Institute, “Procedures for the
`Development and Coordination of American National Standards”
`(March 22, 1995)
`
`Library of Congress, Excerpts from “Network and Customer
`Installation Interfaces – Asymmetric Digital Subscriber Line (ADSL)
`Metallic Interface” (Stamped Feb. 2, 1996)
`
`Linda Hall Library, Excerpts from “Network and Customer Installation
`Interfaces – Asymmetric Digital Subscriber Line (ADSL) Metallic
`Interface” (Stamped Apr. 15, 1996)
`
`Zogakis and Cioffi, “The Effect of Timing Jitter on the Performance of
`a Discrete Multitone System” (Jul. 1996)
`
`U.S. Patent No. 6,144,695 to Helms et al.
`
`U.S. Patent No. 5,815,505 to Mills
`
`U.S. Patent No. 5,974,139 to McNamara et al.
`
`U.S. Patent No. 6,091,722 to Russell et al.
`
` 1015 U.S. Patent No. 6,134,274 to Sankaranarayanan et al.
`
`1016
`
`Curriculum Vitae of W. Leo Hoarty
`
`-v-
`
`
`
`
`
` 
`
`

`
`
`
`Ex. No.
`
`1017
`
`1018
`
`1019
`
`1020
`
`1021
`
`1022
`
`1023
`
`1024
`
`1025
`
`1026
`
`1027
`
`1028
`
`1029
`
`
`List of Exhibits
`
`Description of Document
`
`Edfors, et al., “An introduction to orthogonal frequency-division
`multiplexing” (Sept. 1996)
`
`Franks, “Carrier and Bit Synchronization in Data Communication – A
`Tutorial Review” (Aug. 1980)
`
`Hall, “Selecting an ADSL transceiver: ANSI standard offers two levels
`of modem performance” (Oct. 1, 1997)
`
`“Learning About Saving Energy” (Jan. 1995)
`
`“Technical Report TR-001: ADSL Forum System Reference Model”
`(May 1996)
`
`“Technical Report TR-005: ADSL Network Element Management”
`(Mar. 1998)
`
`“Technical Report TR-007: Interfaces and System Configurations for
`ADSL: Customer Premises” (Mar. 1998)
`
`“TR-013: Interfaces and System Configuration for ADSL Central
`Office” (Jan. 1999)
`
`“Technical Report TR-022: The Operation of ADSL-based Networks”
`(1999)
`
`“DSL Forum Technical Report TR-023: Overview of ADSL Testing”
`(May 26, 1999)
`
`“Technical Report TR-026: T1.413 Issue 2 ATM based ADSL ICS”
`(Sep. 9, 1999)
`
`“Technical Report TR-029: ADSL Dynamic Interoperability Testing”
`(Feb. 2000)
`
`“Technical Report, DSL Forum TR-031: ADSL ANSI T1.413-1998
`Conformance Testing” (Mar. 2000)
`
`1030
`
`“Technical Report, DSL Forum TR-033: ITU-T G.992.2 (G.lite) ICS”
`
`
`
` 
`
`-vi-
`
`
`
`

`
`
`
`Ex. No.
`
`(Mar. 2000)
`
`
`List of Exhibits
`
`Description of Document
`
`1031
`
`1032
`
`1033
`
`1034
`
`1035
`
`1035
`
`1036
`
`1037
`
`1038
`
`1039
`
`1040
`
`1041
`
`1042
`
`1043
`
`PowerPoint Presentation, “ADSL and flavors in a nutshell”
`
`Bingham, “ADSL, VDSL, and Multicarrier Modulation” (2000)
`
`Kitz, “ADSL Technology and DMT”
`
`Tretter, “Communication System Design using DSP Algorithms”
`(2008)
`
`EE Times, “ADSL Technology Explained, Part 1: The Physical Layer”
`(Mar. 2001)
`
`
`
`EE Times, “ADSL2: Taking the Next Step in Broadband Designs” (Jul.
`2002)
`
`Rorke, “Introduction to Copper Access Technologies and ADSL,”
`Rhodes University Computer Science Honours (1997)
`
`Tuijl, “Modem Techniques”
`
`Frenzel, “Network Timing Reference from Frequency Synchronization
`in xDSL based Access Networks” (Nov. 2010)
`
`Cordes and Johansson, “Synchronization in ADSL Modems” (Dec.
`1998)
`
`University of California, “Overview of Cell Phone Technology”
`
`Radio-Electronics, “GSM Power Control and Power Class”
`
`ETSI, “Speech and multimedia Transmission Quality (STQ); QoS
`aspects for popular services in mobile networks; Part 2: Definition of
`Quality of Service parameters and their computation” (2016)
`
`1044
`
`Pettit, “Video Dialtone: Reflections on Changing Perspectives in
`Telecommunications Regulation,” Harvard Journal of Law and
`
`
`
` 
`
`-vii-
`
`
`
`

`
`
`
`Ex. No.
`
`
`List of Exhibits
`
`Description of Document
`Technology, Vol. 6 (1993)
`
`1045
`
`1046
`
`1047
`
`1048
`
`1049
`
`1050
`
`1051
`
`Fankhauser, et al. “The WaveVideo System and Network Architecture:
`Design and Implementation” (Jun. 1998)
`
`Hernandez, “April 20, 1964: Picturephone Dials Up First
`Transcontinental Video Call” (Apr. 2012)
`
`DSL Forum, “ADSL2 and ADSL2plus – The New ADSL Standards”
`(Mar. 2003)
`
`Abramson, “The Alohoa System – Another alternative for computer
`communications”, Fall Joint Computer Conference (1970)
`
`IEEE, “IEEE Standard for Ethernet” (Dec. 2012)
`
`Joint Claim Construction Chart, TQ Delta v. Dish Network Corp. et al.,
`15-cv-00614 (Jun. 30, 2016)
`
`European Patent Publication No. EP 0883269 to Vanzieleghem
`(“Vanzieleghem”)
`
`1052 Website, "Streaming Video: Internet Broadcasting for the Masses"
`(1998)
`
`1053
`
`EE Times, “ADSL Technology Explained, Part 2: Getting to the
`Application Layer” (Apr. 2001)
`
`1054
`
`U.S. Patent No. 6,181,711 to Zhang, et al.
`
`
`
` 
`
`-viii-
`
`
`
`

`
`Petition for Inter Partes Review of
`U.S. Patent No. 9,094,268
`
`I.
`
`INTRODUCTION
`
`Petitioner DISH Network L.L.C. ( “DISH” or the “Petitioner”) respectfully
`
`submits this Petition for Inter Partes Review of claims 1, 2, 4, 11, 12, 14, 16 and 18
`
`(“the Petitioned Claims”) of U.S. Patent No. 9,094,268 (“the ’268 patent”)(Ex.
`
`1001).
`
`As discussed in the following sections, Bowie (Ex. 1004) anticipates claims
`
`14 and 16, and renders obvious claims 1, 2, 4, 11, 12, 14, 16 and 18 when combined
`
`with one or more other cited references (Exs. 1005-1007).
`
`II. MANDATORY NOTICES UNDER 37 C.F.R. § 42.8(A)(1)
`A. Real Party-In-Interest under 37 C.F.R. § 42.8(b)(1)
`Petitioner DISH Network L.L.C., along with DISH DBS Corporation and
`
`DISH Network Corporation are the real parties-in-interest.
`
`B. Related Matters under 37 C.F.R. § 42.8(b)(2)
`The ’268 patent is asserted in the following pending litigations:
`
`Name
`TQ Delta LLC v. Comcast
`Cable Communications
`LLC
`TQ Delta LLC v. CoxCom,
`LLC et al.
`TQ Delta LLC v.
`DIRECTV et al.
`TQ Delta LLC v. DISH
`Network Corporation et
`al.
`
`
`
` 
`
`Number
`1-15-cv-00611
`
`Court
`DED
`
`Filed
`July 17, 2015
`
`1-15-cv-00612
`
`1-15-cv-00613
`
`1-15-cv-00614
`
`DED
`
`DED
`
`DED
`
`July 17, 2015
`
`July 17, 2015
`
`July 17, 2015
`
`-1-
`
`
`
`

`
`Petition for Inter Partes Review of
`U.S. Patent No. 9,094,268
`
`TQ Delta LLC v. Time
`Warner Cable Inc. et al.
`TQ Delta LLC v. Verizon
`Communications, Inc. et
`al.
`
`1-15-cv-00615
`
`1-15-cv-00616
`
`DED
`
`DED
`
`July 17, 2015
`
`July 17, 2015
`
`In addition, related U.S. Patent No. 8,611,404 is involved in IPR2016-
`
`01160, Petition for Inter Partes Review by ARRIS Group, filed on June 6, 2016 and
`
`in TQ Delta LLC v. ADTRAN Inc., No. 1-14-cv-00954 (D. Del. July 17, 2014).
`
`Petitioner is not aware of any other judicial or administrative matters that would
`
`affect, or be affected by, a decision in this proceeding.
`
`C. Lead and Back-Up Counsel under 37 C.F.R. § 42.8(b)(3)
`Petitioner provides the following designation of counsel.
`
`LEAD COUNSEL
`Heidi L. Keefe (Reg. No. 40,673) / hkeefe@cooley.com
`zpatdcdocketing@cooley.com
`COOLEY LLP
`ATTN: Patent Group
`1299 Pennsylvania Ave., NW, Suite 700
`Washington, DC 20004
`Tel: (650) 843-5001
`Fax: (650) 849-7400
`
`BACK-UP COUNSEL
`Stephen McBride (pro hac vice to be filed) / smcbride@cooley.com
`Jennifer Volk (Reg. No. 62,305) / jvolkfortier@cooley.com
`Dish-TQDelta@cooley.com
`zpatdcdocketing@cooley.com
`COOLEY LLP
`ATTN: Patent Group
`1299 Pennsylvania Ave., NW, Suite 700
`Washington, DC 20004
`
`
`
` 
`
`-2-
`
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`
`

`
`Petition for Inter Partes Review of
`U.S. Patent No. 9,094,268
`
`Tel: (703) 456-8000
`Fax: (703) 456-8100
`D.
`As identified in the attached Certificate of Service, a copy of the present
`
`Service Information
`
`petition, in its entirety, including all Exhibits and a power of attorney, is being
`
`served by Federal Express, costs prepaid, to the address of the attorney or agent of
`
`record for the ’268 patent: Jason H. Vick and Sabrina Stavish of Sheridan Ross,
`
`PC. Petitioner may be served at the address provided immediately above in Part
`
`II.C for lead and back-up counsel, and consents to electronic service at those
`
`addresses.
`
`Power of Attorney
`
`E.
`Filed concurrently with this Petition in accordance with 37 C.F.R. § 42.10(b).
`
`III. PAYMENT OF FEES - 37 C.F.R. § 42.103
`This Petition requests review of claims 1, 2, 4, 11, 12, 14, 16 and 18 of the
`
`’268 patent. A payment of $23,000 is submitted herewith. See 37 C.F.R. § 42.15(a).
`
`This Petition meets the fee requirements of 35 U.S.C. § 312(a)(1).
`
`IV. REQUIREMENTS FOR INTER PARTES REVIEW UNDER 37 C.F.R. §§ 42.104
`AND 42.108
`A. Grounds for Standing under 37 C.F.R. § 42.104(a)
`The Petitioner certifies that the ’268 patent is available for inter partes
`
`review, and that the Petitioner is not barred or otherwise estopped from requesting
`
`
`
` 
`
`-3-
`
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`
`

`
`Petition for Inter Partes Review of
`U.S. Patent No. 9,094,268
`
`inter partes review on the grounds identified herein. The Petitioner is unaware of
`
`any previous petition for inter partes review with respect to the ’268 patent.
`
`B.
`
`Identification of Challenge Under 37 C.F.R. § 42.104(b) and
`Statement of Precise Relief Requested
`
`Petitioner respectfully requests that the Board initiate inter partes review of
`
`claims 1, 2, 4, 11, 12, 14, 16 and 18 of the ’268 patent and requests that each claim
`
`be found unpatentable as anticipated under 35 U.S.C. § 102(e) or obvious under 35
`
`U.S.C. § 103(a) on the following grounds:
`
`Ground
`1
`2
`
`3
`
`4
`
`Claims
`14, 16
`1, 11
`
`Basis for Challenge
`Anticipated by Bowie under 35 U.S.C. § 102(e)
`Obvious over Bowie in view of the 1995 ADSL Standard
`under 35 U.S.C. § 103(a)
`1, 2, 11, 12 Obvious over Bowie in view of Morelli and the 1995
`ADSL Standard under 35 U.S.C. § 103(a)
`4, 14, 16, 18 Obvious over Bowie in view of Morelli under 35 U.S.C. §
`103(a)
`
`Parts IX & X below explain in detail why the challenged claims are
`
`unpatentable based on these Grounds.
`
`This Petition also cites additional materials for purposes of providing a
`
`technology background and describing the state of the art at the time of the alleged
`
`invention. These materials are also cited in the accompanying Declaration of Leo
`
`Hoarty (Ex. 1002), an expert with over forty years of technical experience, including
`
`extensive experience in the area of communications and messaging.
`
`
`
` 
`
`-4-
`
`
`
`

`
`Petition for Inter Partes Review of
`U.S. Patent No. 9,094,268
`
`
`C. Requirements for Inter Partes Review 37 C.F.R. § 42.108(c)
`The Board should institute inter partes review of claims 1, 2, 4, 11, 12, 14, 16
`
`and 18 because this Petition establishes a reasonable likelihood of prevailing with
`
`respect to each challenged claim. See 35 U.S.C. § 314(a).
`
`V. BRIEF BACKGROUND OF THE UNDERLYING TECHNOLOGY
`Mr. Hoarty provides a technology tutorial in his declaration. (Ex. 1002, ¶¶
`
`39-104.)
`
`VI. SUMMARY OF THE ’268 PATENT
`A. Brief Description of the ‘268 Patent
`The ‘268 patent describes “a multicarrier transmission system having a low
`
`power sleep mode and a rapid-on capability.” (Ex. 1001 at 3:35-37.) The system
`
`includes a transceiver at the local central telephone office’s location (“CO
`
`transceiver”) and a transceiver at the customer’s premises (“CPE transceiver”).
`
`(Id., 3:66-4:9.) These transceivers communicate with each other over a telephone
`
`line. (Id.)
`
`Each transceiver includes a “transmitter section 12 for transmitting data over
`
`a digital subscriber line 14 and a receiver section 16 for receiving data from the
`
`line.” (Ex. 1001, 4:18-21, FIG. 1.) The ‘268 patent describes one embodiment
`
`where both of the transmitter and receiver sections 12, 16 enter a low power mode
`
`(or “sleep” mode) such that power supplied to those sections 12, 16 is reduced or
`
`
`
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`-5-
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`

`
`Petition for Inter Partes Review of
`U.S. Patent No. 9,094,268
`
`cut off. (Id., 6:66-7:21.) The ‘268 patent also describes another embodiment where
`
`the transceiver is placed into a “partial” sleep mode “in which only part of the
`
`transceiver is powered down.” (Id., 8:52-60.) For example, in this particular
`
`embodiment, the transmitter section 12 can operate in a low power or sleep mode
`
`while the receiver section 16 operates in a full power mode. (Id.)
`
`The ‘268 patent describes that a transceiver entering a low power mode must
`
`first store a variety of line parameters comprising its “state memory”. (Ex. 1001,
`
`6:66-7:14.) Once the “controller receives an ‘Awaken’ indication…the transceiver
`
`retrieves its stored state from the state memory.” (Id., 7:64-8:6.) The stored state
`
`information “enables the rapid resumption of transmissions, whether from a power
`
`down or from an enforced idle condition due to temporary unavailability of
`
`processor resources in the case of an embedded transceiver.” (Id., 8:19-28.) To
`
`ensure that the two ends of the link can successfully communicate to restore
`
`normal operation, the ‘268 patent also discloses synchronization between the two
`
`transceivers connected by the ADSL link. (Id., 7:14-17.)
`
`B.
`
`Petitioned Claims of the ‘268 Patent
`
`
`
`1[a]
`1[b]
`1[c]
`
`
`
` 
`
`Claim Limitation
`
`A method, in a multicarrier transceiver, comprising:
`transmitting or receiving a message to enter a low power mode; and
`entering the low power mode, wherein a transmitter portion of the
`transceiver does not transmit data during the low power mode and a
`-6-
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`

`
`Petition for Inter Partes Review of
`U.S. Patent No. 9,094,268
`
`
`1[d]
`
`2
`
`4[a]
`4[b]
`4[c]
`
`4[d]
`
`11[c]
`
`12
`
`receiver portion of the transceiver receives data during the low power
`mode,
`wherein the transceiver is a device that is capable of transmitting or
`receiving internet and video data.
`The method of claim 1, further comprising maintaining
`synchronization with a second transceiver during the low power mode.
`A method, in a multicarrier transceiver, comprising:
`transmitting or receiving a message to enter a low power mode;
`entering the low power mode, wherein a transmitter portion of the
`transceiver does not transmit data during the low power mode and a
`receiver portion of the transceiver receives data during the low power
`mode; and
`storing, during the low power mode, at least one parameter associated
`with a full power mode.
`11[a] A method, in a multicarrier transceiver, comprising:
`11[b]
`transmitting or receiving a message to enter a low power mode for a
`transmitter portion while a receiver portion remains in a full power
`mode; and
`entering the low power mode for the transmitter portion while the
`receiver portion remains in the full power mode,
`11[d] wherein the transceiver is a device that is capable of transmitting or
`receiving internet and video data.
`The method of claim 11, further comprising maintaining
`synchronization with a second transceiver during the low power mode.
`14[a] A method, in a multicarrier transceiver, comprising:
`14[b]
`transmitting or receiving a message to enter a low power mode for a
`transmitter portion while a receiver portion remains in a full power
`mode;
`entering the low power mode for the transmitter portion while the
`receiver portion remains in the full power mode; and
`storing during the low power mode at least one parameter associated
`with the full power mode.
`
`14[c]
`
`14[d]
`
`
`
` 
`
`-7-
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`

`
`Petition for Inter Partes Review of
`U.S. Patent No. 9,094,268
`
`
`16[c]
`
`16[a] A method, in a multicarrier transceiver, comprising:
`16[b]
`transmitting or receiving a message to enter a low power mode for a
`transmitter portion while a receiver portion remains in a full power
`mode; and
`entering the low power mode for the transmitter portion while the
`receiver portion remains in the full power mode,
`16[d] wherein the transmitter portion of the transceiver does not transmit
`user data during the low power mode.
`18[a] A method, in a multicarrier transceiver, comprising:
`18[b]
`transmitting or receiving a message to enter a low power mode for a
`transmitter portion while a receiver portion remains in a full power
`mode; and
`entering the low power mode for the transmitter portion while the
`receiver portion remains in the full power mode,
`18[d] wherein the receiver portion of the transceiver receives data during the
`full power mode.
`
`18[c]
`
`Priority Claim of the ‘268 Patent
`
`C.
`The ‘268 patent was filed on June 4, 2014 as U.S. Patent Application No.
`
`14/295,981. It claims priority to numerous continuation applications and ultimately
`
`claims priority to U.S. Provisional Application No. 60/072,447, which was filed on
`
`January 26, 1998. Thus, the ‘268 patent’s earliest possible priority date is January
`
`26, 1998.1
`
`                                               
`
` 1
`
` Petitioners do not challenge the priority date of the ‘268 patent here; however,
`
`they reserve the right to do so in a later response or in another proceeding.
`
`
`
` 
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`
`Petition for Inter Partes Review of
`U.S. Patent No. 9,094,268
`
`VII. CLAIM CONSTRUCTION UNDER 37 C.F.R. § 42.104(B)(3)
`A. Legal Overview
`A claim subject to inter partes review is given its “broadest reasonable
`
`construction in light of the specification of the patent in which it appears.” 37
`
`C.F.R. § 42.100(b). As the Federal Circuit has recognized, the “broadest reasonable
`
`construction” standard is fundamentally different from the manner in which the
`
`scope of a claim is determined in litigation. See In re Swanson, 540 F.3d 1368,
`
`1377-78 (Fed. Cir. 2008). Accordingly, the constructions proposed in this Petition
`
`are not necessarily the construction that would be appropriate in litigation.
`
`Proposed Claim Constructions
`
`B.
`Petitioner’s proposed claim constructions for selected terms are provided
`
`below. Any claim terms not expressly construed herein should be given their plain
`
`and ordinary meaning as understood by a person of ordinary skill in the art
`
`(“POSITA”). (See Ex. 1002, ¶¶ 26-33.)
`
`“Low Power Mode” (all Petitioned Claims)
`
`1.
`The broadest reasonable interpretation for “low power mode” is “a state in
`
`which power to circuitry is reduced for the purpose of power conservation.”
`
`According to the specification, “it is an object of the invention to provide a
`
`multicarrier transmission system having a low power sleep mode and a rapid-on
`
`capability.” (Ex. 1001, 3:35-38.) The purpose of sleep mode is “power
`
`
`
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`Petition for Inter Partes Review of
`U.S. Patent No. 9,094,268
`
`conservation as well as to accommodate [the transceiver] to integration with, or
`
`incorporation into, computer systems having a power conservation mode.” (Ex.
`
`1001, 9:63-66.) “It is thus desirable that the transceiver be able to suspend
`
`operations and enter a ‘sleep’ mode in which it consumes reduced power when it is
`
`not needed for data transmission or reception.” (Ex. 1001, 6:6-11.)
`
`“Transceiver” (all Petitioned Claims)
`
`2.
`The broadest
`
`reasonable
`
`interpretation
`
`for
`
`“transceiver”
`
`is
`
`“a
`
`communications device capable of transmitting and receiving.” This is the
`
`construction proposed by Patent Owner in the corresponding litigation and is
`
`consistent with the plain and ordinary meaning for this term. (Ex. 1050, 8.)
`
` “Data” (Claims 1, 4, 11, 16)
`
`3.
`The broadest reasonable
`
`interpretation for “data”
`
`is “information.”
`
`The ‘268 patent uses data broadly to refer to any sort of information, for example,
`
`information conveyed over the Internet (Ex. 1001, 4:4-9), information conveyed
`
`over DSL lines (Ex. 1001, 4:18-22), idle data (Ex. 1001, 7:35), information in CPU
`
`buffers (Ex. 1001, 9:38-40) or even an idle indicator (Ex. 1001, 9:40-53).
`
`Accordingly, “data” would be understood, according to its plain and ordinary
`
`meaning as used in the patent, as “information.”
`
`
`
` 
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`

`
`Petition for Inter Partes Review of
`U.S. Patent No. 9,094,268
`
`VIII. PERSON HAVING ORDINARY SKILL IN THE ART & STATE OF THE ART
`The ‘268 patent is directed to a multicarrier transceiver with a low power
`
`mode setting. (Ex. 1002, ¶¶ 105-106.) At the time of the alleged invention, a
`
`person having ordinary skill in the art (“POSITA”) as of 1998 would hold a
`
`bachelor’s degree or the equivalent in electrical engineering (or related academic
`
`fields) and at least four years of additional work experience in the area of digital
`
`and/or telecommunication system design, as applicable to DSL systems, or,
`
`alternately, eight years of equivalent work experience.. (Id., ¶¶ 26-33.)
`
`IX. CLAIMS 14 AND 16 ARE ANTICIPATED BY BOWIE (GROUND 1)
`A. Overview of Bowie
`Bowie was filed on July 30, 1997 and issued on September 21, 1999. Because
`
`the earliest priority date of the ‘268 patent is January 26, 1998, Bowie qualifies as
`
`prior art under 35 U.S.C. § 102(e).
`
`Bowie describes “[m]ethods and apparatus for conserving power in terminal
`
`units
`
`that
`
`transmit
`
`and
`
`receive modulated data over
`
`a communications
`
`loop.”
`
`(Ex. 1004, Abstract.) The
`
`terminal unit can be an
`
`asymmetric
`
`digital
`
`
`
` 
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`-11-
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`
`Petition for Inter Partes Review of
`U.S. Patent No. 9,094,268
`
`subscriber line (ADSL) unit. (Id., 3:24-37.) In one of the disclosed embodiments,
`
`as shown in Figure 2 of Bowie (at right), an ADSL unit is located at each end of a
`
`wire loop 220. (Id., 3:51-52.) There is one ADSL unit located on the subscriber’s
`
`premise 240, which is referred to as a “customer premises equipment (CPE) ADSL
`
`unit 242.” (Id., 3:52-54.) And, a second ADSL unit located at the telephone
`
`company’s central office 230, which is referred to as the “central office terminal
`
`(COT) unit 232.” (Id., 3:54-57.)
`
`Each of the ADSL units 232, 242 have the internal components shown in
`
`Figure 1 of Bowie (at right). Both units 232, 242 also have a “low power mode” to
`
`reduce
`
`the
`
`power
`
`requirements
`
`for
`
`these
`
`components during operation.
`
`(Ex. Id., 5:6-16.) According
`
`to Bowie, “[e]ither unit may
`
`initiate the low power mode.”
`
`(Id.) For example, Bowie
`
`discloses that CPE unit 242
`
`can initiate the low power
`
`mode by “sending a shut-
`
`
`
` 
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`-12-
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`

`
`Petition for Inter Partes Review of
`U.S. Patent No. 9,094,268
`
`down signal” to the COT unit 232 in the form of a “series of signaling bits”. (Ex.
`
`1004, 5:6-16, 7:12-19, 2:25-27.)
`
`When a shut-down signal is received by one of the units 232, 242, Bowie
`
`explains that certain “handshaking” information is stored at that unit. (Id., 5:17-
`
`24.) Such handshaking information includes “loop loss characteristics, which are a
`
`function of loop length, wire gauge, wire composition, and other factors.” (Id.,
`
`4:64-5:5.) “Storing loop characteristics enables rapid resumption of user data
`
`transmission when the units are returned to full power mode” because it “reduc[es]
`
`the time needed to determine loop transmission characteristics” (i.e., handshaking).
`
`(Id., 5:23-25, 5:62-66.)
`
`During “low power mode”, the units 232, 242 in Bowie shut off the
`
`“unnecessary sections” of the transmitting and receiving circuitry. (Id., 5:25-28.)
`
`However, the resume signal detector 115 circuitry portion of the receiver “must
`
`remain capable of signal detection during low power operation.” (Id., 5:29-31,
`
`5:55-56.) In other words, this circuitry 115 in Bowie must remain in a full power
`
`mode while the other “unnecessary sections” of the unit 232, 242 are in a low
`
`power mode.
`
`B.
`
`Independent claim 14 is anticipated by Bowie (Ground 1)
`1.
`
`Preamble 14[a]
`
`14[a] A method, in a multicarrier transceiver, comprising:
`
`
`-13-
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` 
`
`

`
`Petition for Inter Partes Review of
`U.S. Patent No. 9,094,268
`
`
`To the extent this preamble is limiting, it is disclosed in Bowie. For
`
`example, Bowie discloses “a method of conserving power in a terminal unit having
`
`a transmitter and receiver for modulated data communications.” (Ex. 1004, 2:9-11,
`
`Abstract.) As discussed in § VII.B.2., the broadest reasonable interpretation for
`
`“transceiver” is “a communications device capable of transmitting and receiving.”
`
`Thus, the terminal unit in Bowie is the claimed “transceiver” because it is a
`
`communications device that both transmits and receives. (See also, Id., FIG. 1,
`
`3:34-50.