Douglas R. Holberg, Ph.D.
`820 Camino de Rancho, Wimberley, TX. 78676 (512) 970-4007 ip@holberg.org
`
`
`Education
`B.S.E.E. - 1977, Texas A&M University, College Station, TX.
`M.S.E. - 1989, The University of Texas, Austin, TX.
`Ph.D. - 1992, The University of Texas, Austin, TX.
`Experience
`
`Intellectual Property Technical Consultant –
`Apr 2013 – Present: Principal
`Patent analysis for licensing and litigation (offensive and defensive)
`Patent analysis and review for valuation
`Inter Partes Review
`Expert witness
`Jan 2008 – Mar 2013
`Patent analysis for licensing and litigation (offensive and defensive)
`Technical support for patent prosecution
`Patent analysis and review for valuation
`
`
`Silicon Laboratories –
`Jun 2005 – Jan 2008: V. P. of Technology
`Dec 2003 – Jun 2005: Director of Engineering, MCU Products
`
`Cygnal Integrated Products - Feb. 1999 to Dec 2003 (acquired by Silicon Labs Dec 2003)
`Vice President of Engineering, Chief Technical Officer, Co-founder
`Concurrent to the position at Cygnal, I served as Adjunct Assistant Professor at the University of Texas at
`Austin, and Technical Advisory Boards for Silicon Metrics and Celite Systems.
`
`Adjunct Assistant Professor, University of Texas as Austin – 1995-2001
`Taught “CMOS Analog Circuit Design” Graduate class: EE397K and Undergraduate class: EE338L
`
`Crystal Semiconductor Corp. (Cirrus Logic) - Sep. 1996 to Feb. 1999
`Director of Imaging and Video Products (CCD interface, CMOS imagers, TV encoders, etc.)
`
`Crystal Semiconductor Corp. (Cirrus Logic) - Oct. 1992 to Sep. 1996
`Design Manager for VLSI mixed-signal products including telecommunications and disk drive read channel
`devices.
`
`Independent Consultant - Aug. 1987 to Oct. 1992
`Taught a short-course entitled “CMOS Analog Integrated Circuit Design” in Berlin, Germany twice per year as
`a part of the “Berlin Continuing Engineering Education Program.” In addition, this course was taught at Analog
`Devices BV, Ireland, Aug. 1990.
`Lectured at Baylor University's Department of Engineering (Spring ‘89, Spring ‘91).
`Consultant for Advanced Micro Devices, Crystal Semiconductor, and other companies on projects relating to
`switched-capacitor filters, operational amplifiers, latchup, and the ISDN analog interface.
`
`Crystal Semiconductor Corp. - Oct. 1984 to Aug. 1987
`Project leader on the CS7008 Universal Filter--a universal programmable filter using novel switched-capacitor
`techniques. This design was completed in a 3m silicon-gate double-polysilicon CMOS process.
`
`AMD EX1004
`U.S. Patent No. 6,239,614
`
`0001
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`

`

`Texas Micro Engineering, Inc. - June 1980 to Oct. 1984
`Project leader on TME3030 Sense Amplifier/Filter--a dual-channel switched-capacitor filter circuit to be used
`in a medical electronic application. Co-designed a gate-array platform customized for medical and consumer
`products. Performed extensive device characterization of MOS transistors. This work included characterization
`of noise performance and characterization of transistors operating in weak inversion.
`
`Mostek, Inc., Carrollton, TX. - Jan. 1978 to June 1980
`Circuit designer. Served as project leader on MK5387 DTMF generator.
`Inventions
`1. 8,010,819
`2. 7,719,595
`3. 7,660,968
`4. 7,613,901
`
`Microcontroller unit (MCU) with power saving mode
`Preview mode low resolution output system and method
`Reconfigurable interface for coupling functional input/output blocks to limited number of I/O pins
`Comparators in IC with programmably controlled positive / negative hysteresis level and open-
`drain/push-pull output coupled to crossbar switch or rising/falling edge interrupt generation
`Digital pulse width modulated power supply with variable LSB
`Precision oscillator having linbus capabilities
`Integrated circuit package including programmable oscillators
`USB integrated module
`Analog-to-digital converter with low power track-and-hold mode
`MCU with power saving mode
`Precise frequency generation for low duty cycle transceivers using a single crystal oscillator
`Method and apparatus for tuning GMC filter
`Digital pulse width modulated power supply with variable LSB
`Gain control for delta sigma analog-to-digital converter
`Preview mode low resolution output system and method
`Correlated double sampling variable gain amplifier circuit for use in a digital camera
`CCD imager analog processor systems and methods
`Cross-bar matrix with LCD functionality
`Reconfigurable interface for coupling functional input/output blocks to limited number of i/o pins
`Method and apparatus for tuning GMC filter
`Flash ADC with variable LSB
`Method and apparatus for combining outputs of multiple DACs for increased bit resolution
`SAR analog-to-digital converter with abort function
`Capacitor calibration in SAR converter
`High voltage difference amplifier with spark gap ESD protection
`Segmented D/A converter with enhanced dynamic range
`CCD imager analog processor systems and methods
`Preview mode low resolution output system and method
`Phase locked loop circuits, systems, and methods
`DAC using current source driving main resistor string
`D/A converter street effect compensation
`Segemented D/A converter with enhanced dynamic range
`A/D converter with voltage/charge scaling
`High voltage input pad system
`Methods for mounting an imager to a support structure and circuitry and systems embodying the same
`High voltage input pad system
`Switched-capacitor filter having digitally-programmable capacitive element
`Offset voltage compensation circuit
`Tone generator circuit
`
`5. 7,511,465
`6. 7,504,902
`7. 7,504,900
`8. 7,502,883
`9. 7,498,962
`10. 7,441,131
`11. 7,421,251
`12. 7,382,181
`13. 7,323,855
`14. 7,315,200
`15. 7,304,679
`16. 7,289,145
`17. 7,286,176
`18. 7,256,611
`19. 7,171,542
`20. 7,164,311
`21. 7,061,421
`22. 6,950,047
`23. 6,922,164
`24. 6,891,487
`25. 6,879,004
`26. 6,724,336
`27. 6,720,999
`28. 6,686,957
`29. 6,617,934
`30. 6,448,917
`31. 6,400,300
`32. 6,384,763
`33. 6,288,661
`34. 6,285,536
`35. 6,172,361
`36. 6,038,116
`37. 4,849,662
`38. 4,492,927
`39. 4,390,754
`
`Currently have 1 pending application at the PTO.
`Publications
`Ka Y. Leung, Kafai Leung, Douglas R. Holberg, “A Dual Low Power ½ LSB INL 16b/1Msamples/s SAR A/D
`Converter with on-chip Microcontroller, Proc. 2006 Asian Solid State Circuits Conference, Nov 2006.
`
`Welland, D.; Phillip, S.; Tuttle, T.; Ka Leung; Dupuie, S.; Holberg, D, et al., “Implementation of a digital
`read/write channel with EEPR4 detection,” IEEE Transactions on Magnetics, Volume: 31 , Issue: 2, 1995.
`
`
`0002
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`

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`Welland, D.; Phillip, S.; Ka Leung; Anderson, K.; Armstrong, A.; Tuttle, T.; Dupuie, S.; Holberg, D.; et al. ,
`“An EEPR4 Read/Write Channel,” Digest of the Magnetic Recording Conference 1994.
`
`D. Welland, S. Phillip, K. Leung, G. Tuttle, S. Dupuie, D. Holberg, et al., “A Digital Read/Write Channel with
`EEPR4 Detection,” Proc. IEEE International Solid-State Circuits Conference, Feb. 1994.
`
`Welland, D.; Phillip, S.; Tuttle, T.; Ka Leung; Dupuie, S.; Holberg, D.; Jack, R.; Sooch, N.; Behrens, R.;
`Anderson, K.; Armstrong, A.; Bliss, W.; Dudley, T.; Foland, B.; Glover, N.; King, L., "Implementation of a
`digital read/write channel with EEPR4 detection," IEEE Transactions on Magnetics, Vol 31, No. 2, Mar. 1995.
`
`
`
`Ronn B. Brashear, Douglas R. Holberg, M. Ray Mercer, and Lawrence Pillage, “ETA: Electrical-Level Timing
`Analysis,” Proc. IEEE International Conference on Computer-Aided Design, Nov. 1992.
`
`Ashok Balivada, Douglas R. Holberg, Lawrence T. Pillage, “Calculation and Application of Time-Domain
`Waveform Sensitivities in Asymptotic Waveform Evaluation,” Custom Integrated Circuits Conference, May
`1991.
`
`Douglas R. Holberg, Santanu Dutta, Lawrence Pillage, “DC Parameterized Piecewise-Function Transistor
`Models for Bipolar and MOS Logic Stage Delay Evaluation,” Proc. IEEE International Conference on
`Computer-Aided Design, Nov. 1990.
`
`Douglas R. Holberg, “Digitally Programmable Filter Based on Standard Cell Design,” IEEE Analog/Digital
`VLSI Workshop, Sept. 1986.
`
`Tom Dille, Douglas Holberg, and Roger Taylor, “Programmable Filter Chip and its PC-Based Tools Offer New
`Analog Solutions,” Electronic Design, May 29, 1986.
`Books
`Phillip E. Allen and Douglas R. Holberg, CMOS Analog Circuit Design, New York: Holt Rinehart, and
`Winston, ©1987.
`Phillip E. Allen and Douglas R. Holberg, CMOS Analog Circuit Design, 2nd Ed, Oxford University Press,
`©2002.
`Phillip E. Allen and Douglas R. Holberg, CMOS Analog Circuit Design, 3rd Ed, Oxford University Press,
`©2011.
`
`Other Professional Activities
`Served on the “Industrial Electronics Advisory Committee” for the University of Texas Instruction and
`Materials Center, University of Texas, Austin, 1988-1989.
`Baylor University Board of Advocates, 2001 to 2003.
`Member of IEEE
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`0003
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