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1. Chris Heegard, “High Performance Wireless Local Area Networks (WLAN) in the ISM, 2.4GHz, Band,” Wireless Symposium/Portable by Design, Chicago Il, September 26-29, 2000.

2. Mehul Motani and Chris Heegard, “Computing Weight Distributions of Convolutional Codes via Shift Register Synthesis,” 13th AAECC Symposium On Applied Algebra, Algebraic Algorithms, and Error-Correcting Codes,Hawaii (USA), November 15-19, 1999.

3. Matthew Shoemake, Chris Heegard and Eric Rossin, “Turbo Codes for High Order Constellations,” IEEE Information Theory Workshop, Killarney, Kerry, Ireland, June 22–26, 1998.

4. Chris Heegard, “Turbo Coding for Magnetic Recording,” IEEE Information Theory Workshop, San Diego, CA, February 8 – 11, 1998.

5. David Rowe and Chris Heegard, “Balanced Concatenated Trellis Coded Modulation and Reed-Solomon Codes,” 1996 Internation Symposium on Information Theory and it's Applications, Victoria, British Colombia, CANADA, September, 1996.

6. Nagabhushana T. Sindhushay and Chris Heegard, “A Source Coding Theorem for Stationary Sources Parsed with Trees,” 1994 Conference on Information Sciences and Systems, Princeton University, March, 1994.

7. Talal Shamoon and Chris Heegard, “A Rapidly Adaptive Lossless Compression Algorithm for High Fidelity Audio Coding,” 1994 DCC, Snowbird Utah, March, 1994.

8. Chris Heegard and Eric J. Rossin, “Trellis Codes, Symbolic Dynamics, and Isometries,” DIMACS Series in Discrete Mathematics and Theoretical Computer Science, Coding and Quantization, Robert Calderbank, G. David Forney Jr., Nader Moayeri, Editors, Volume 14, 1993.

9. Keith Saints and Chris Heegard, “On Hyperbolic Cascaded Reed–Solomon Codes,” Tenth International Symposium on Applied Algebra, Algebraic Algorithms, and Error Correcting Codes (AAECC-10), San Juan de Puerto Rico, May 10-14, 1993.

10. Eric Rossin, Mitchell D. Trott and Chris Heegard, “Geometrically Uniform, Rotationally Invariant 4-Dimensional Trellis Codes,” 1993 Conference on Information Sciences and Systems, Johns Hopkins University, March, 1993.

11. Nagabhushana T. Sindhushay and Chris Heegard, “Finding the Minimal Graph for a Shift of Finite Type from a Forbidden Word List,” 1993 Conference on Information Sciences and Systems, Johns Hopkins University, March, 1993.

12. Eric Rossin and Chris Heegard, “Rotationally Invariant Trellis Codes with a Linear Structure,” 1992 Conference on Information Sciences and Systems, Princeton University, March, 1992.

13. Talal Shamoon and Chris Heegard, “High-Fidelity Audio Compression: Fractional-Octave Wavelets and Adaptive Quantization,” 1992 International Conference on Acoustics, Speech and Signal Processing, San Francisco, California, March, 1992.

14. Mignon Belongie and Chris Heegard, “Pairwise Charge Constrained Run Length Codes,” 1991 Conference on Information Sciences and Systems, Johns Hopkins University, March, 1991.

15. Alexandra Duel-Hallen and Chris Heegard, “Spectra of Cyclostationary Run-length Limited Codes,” 1991 Conference on Information Sciences and Systems, Johns Hopkins University, March, 1991.

16. Rajeev Krishnamoorthy and Chris Heegard, “Structure and Decoding of Reed-Solomon Based Cascade Codes,” 1991 Conference on Information Sciences and Systems, Johns Hopkins University, March, 1991.

17. Talal Shamoon and Chris Heegard, “Audio Compression via Wavelets and Multiresolution Filtering,” 1991 Conference on Information Sciences and Systems, Johns Hopkins University, March, 1991.

18. Chris Heegard, “Trellis Codes for Recording,” 1988 IEEE Military Communications Conference, San Diego, October 23–26, 1988.

19. Tom Fuja and Chris Heegard, “Asymptotic Bounds for Focused Error Control Codes,” 26'th Annual Allerton Conference on Communication, Control and Computing, September 28–30, 1988.

20. Chris Heegard and Alexandra Duel-Hallen, “On the Capacity of the Noisy Run-Length Channel,” 1988 IEEE International Workshop on Information Theory, Bejing China, July, 1988.

21. Tom Fuja and Chris Heegard, “Focused Error Control Codes,” 1988 Conference on Information Sciences and Systems, Princeton University, March 16–18, 1988.

22. Chris Heegard, Rasmik Karabed and David Neuhoff, “Transmission of Sources over Noiseless Channels,” 1988 Conference on Information Sciences and Systems, Princeton University, March 16–18, 1988.

23. Chris Heegard, “A Pair Of Information Theoretic Lemmas With Application To Run-Length Coding,” 25'th Annual Allerton Conference on Communication, Control and Computing, September 30–October 2, 1987.

24. Chris Heegard and Mignon Belongie, “Combined Algebraic and Run-Length Limited Codes,” 5th International Conference on Applied Algebra, Algebraic Algorithms and Error Correcting Codes, Menorca, SPAIN, June 15–19, 1987.

25. Alexandra Duel and Chris Heegard, “Signal Processing in Digital Recording: The Delayed Decision-Feedback Sequence Estimation Algorithm,” SPIE Conference, San Diego, August 18–22, 1986.

26. Alexandra Duel and Chris Heegard, “Delayed Decision Feedback Sequence Estimation for QAM and Trellis Coded Systems,” 1986 Conference on Information Sciences and Systems, Princeton University, March 19–21, 1986.

27. Chris Heegard, “Filtered Trellis Codes — A Study of Distance Properties of Magnetic Recording Codes,” 2'cd IASTED International Conference — TELECON'85, Rio de Janeiro, Brazil, December 10–13, 1985.

28. Alexandra Duel and Chris Heegard, “Delayed Decision-Feedback Sequence Estimation,” 23'rd Annual Allerton Conference on Communication, Control and Computing, October 2–4, 1985.

29. Thomas Fuja, Chris Heegard and Rodney Goodman, “The Structure and Complexity of Linear Sum Codes,” 23'rd Annual Allerton Conference on Communication, Control and Computing, October 2–4, 1985.

30. Ting-Ann Lee and Chris Heegard, “An Inversion Technique for the Design of Binary Convolutional Codes for the $1 - D^N$ Channel,” 1985 Conference on Information Sciences and Systems, Johns Hopkins University, March 27–29, 1985.

31. Chris Heegard and Ting-Ann Lee, “New Modulation Codes for Magnetic Recording,” 22'cd Annual Allerton Conference on Communication, Control and Computing, October 3–5, 1984.

32. Chris Heegard, “An Efficient Encoder for Algebraic Optical Disk Codes,” 1984 Conference on Information Sciences and Systems, Princeton University, March 14–16, 1984.

33. Chris Heegard, C. Richard Johnson and James P. Lyons, “Quantizer Effects in RML-Based ADPCM,” Conference on Decision and Control, San Antonio, Texas, December 14–16 1983.

34. Chris Heegard and Toby Berger, “The Binary and Gaussian Rate-Distortion Functions for a Degraded Source Network,” 21'st Annual Allerton Conference on Communication, Control and Computing, October 5–7, 1983.

35. Chris Heegard, “On the Capacity of Permanent Memory,” 1983 Conference on Information Sciences and Systems, Johns Hopkins University, March 23–25, 1983.

36. C. Richard Johnson, Jim P. Lyons and Chris Heegard, “A New Parameter Estimation Structure Applicable to ADPCM,” 1983 International Conference on Acoustics, Speech and Signal Processing, Boston, Massachusetts, April 14–16, 1983.

37. Chris Heegard, “Codes for Optical Data Storage,” SPIE Topical Meeting on Optical Data Storage, Lake Tahoe Nevada, January 19–22, 1983.

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