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`Office of the General Counsel
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`December 17, 2008
`
`VIA FEDERAL EXPRESS
`
`Mr. Lawrence A. Horn
`Manager and CEO
`MPEG LA, LLC
`6312 S. Fiddlers Green Circle, Suite 400E
`Greenwood Village, CO 80111
`USA
`
`360 McNamara Alumni Center
`200 Oak Street SE.
`Minneapolis, MN 55455
`Office: 612-624-4100
`Fax: 612-626-9624
`
`Wri -114
`
`RECEIVED
`JAN - 9 2009
`OTC
`IIONSOKI
`CORM
`11,E,110
`
`Re: Evaluation of U.S. Patent 5,859.601 for Blu-Ray Disc Patent Portf9lio License
`
`Dear Mr. Horn:
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`Applicable Technology
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`Driven to Discover"
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`Confidential Information
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`UMN_0001072
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`LSI Corp. Exhibit 1019
`Page 1
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`REDACTED
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`REDACTED
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`Mr. Lawrence A. [Torn
`December 17, 2008
`Page 2
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`In U.S. Patent Publication 2007/0257826, assigned to Koninklijke Philips Electronics, N.V., the
`following is said about the 17PP code:
`
`"Originally, the maximum transition-run (MTR) constraint as introduced by
`[Jaekyun] Moon and [Barret J.] Brickner, in "Maximum transition run codes for
`data storage systems", IEEE Transactions on Magnetics, Vol. 32, No. 5, pp. 3992-
`3994, 1996, (for a d4.I case) specifies the maximum number of consecutive "1"-
`bits in the NRZ bitstream (where a "1" indicates a transition in the related bi-polar
`channel bitstream). Equivalently, in the (bi-polar) NRZI bitstream, the MTR
`constraint limits the number of successive 1T runs. As argued above, the MTh
`constraint can also be combined with a d-constraint, in which case the MTR
`constraint limits the number of consecutive minimum runlengths, as is the case
`for the 17PP code which is used in the Blu-Ray disc (BD) format."
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`Claim 13 of the `601 Patent recites:
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`13. A method for encoding m-bit binary datawords into n-bit binary codewords in a recorded
`waveform, where m and n are preselected positive integers such that n is greater than m,
`comprising the steps of:
`receiving binary datawords; and
`producing sequences of n-bit codewords;
`imposing a pair of constraints (j;k) on the encoded waveform;
`generating no more than j consecutive transitions of said sequence in the recorded
`waveform such that j => 2; and
`generating no more than k consecutive sample periods of said sequences without a
`transition in the recorded waveform.
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`Confidential Information
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`UMN_0001073
`
`LSI Corp. Exhibit 1019
`Page 2
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`REDACTED
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`REDACTED
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`REDACTED
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`
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`Mr. Lawrence A. Horn
`December 17, 2008
`Page 3
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`Sincere! ,
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`
`J.
`1 and Senior Patent Counsel
`Associate General Co
`Office of the General Counsel — University of Minnesota
`
`cc: MPEG LA, LLC Contract Administration Department
`3 Commercialization
`Ja Schrankler, Executive Director, Office for Technolo
`flel..ta(t $
`
`Jae Moon, Ph.D.
`Barrett Brickner, Ph.D.
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`Confidential Information
`
`UMN_0001074
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`LSI Corp. Exhibit 1019
`Page 3
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`RE
`DA
`CT
`ED
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