Extended parallel pulse code modulation of LEDs

Proceedings of SPIE - The International Society for Optical Engineering

Volumn 6337, Issue , 2006, Pages

  Ashdown, Ian ^a  

^a TIR Systems Limited   (Canada)

Author keywords

Critical fusion frequency; Ferry Porter law; Pulse code modulation; Temporal dithering; Visual flicker

Indexed keywords

FIELD PROGRAMMABLE GATE ARRAYS; FIRMWARE; FLICKERING; MICROCONTROLLERS; PULSE CODE MODULATION; PULSE WIDTH MODULATION;

CRITICAL FUSION FREQUENCY; FERRY PORTER LAW; MODULATION FREQUENCY; VISUAL FLICKERS;

LIGHT EMITTING DIODES;

EID: 33751116858     PISSN: 0277786X     EISSN: None     Source Type: Conference Proceeding    
DOI: 10.1117/12.679674     Document Type: Conference Paper

References (20)

1. D. G. Delay, Intensity Control for Light-Emitting Diode Display, US Patent 3,787,752, 1972.
2. A. Žukaukas, M. S. Schur, and R. Caska, Introduction to Solid-State Lighting, Wiley-Interscience, New York, NY, 2002.
3. S. Gage, M. Modapp, D. Evans, and H. Sorenson, Optoelectronics Applications Manual, McGraw-Hill Book Company, New York, NY, 1977.
4. W. A. Thomton, Jr., Method and Device for Efficiently Generating White Light with Good Rendition of Illuminated Objects, US Patent 4,176,294, 1979.
5. T. Motozono, K. Kishita, T. Kawabata, Y. Kawasaki, and S. Fujiwara, "LED Display Devices," National Technical Report 28(1):74-82 (Japan), 1982.
6. M. Hodapp, "LEDs as indicators, illuminators, and full-color displays," Photonics for Consumer Electronics, SPIE ITS Vol. 1, pp. 66-75, 1994.
7. M. W. Hodapp, "Applications for high-brightness light-emitting diodes," in G. B. Stringfellow and M. G. Crawford, Eds., High Brightness Light Emitting Diodes: Semiconductors and Semimetals Volume 48, pp. 228-356, Academic Press, San Francisco, CA, 1997.
8. ANSI, Entertainment Technology - USITT DMX512-A - Asynchronous Serial Digital Data Transmission Standard for Controlling Lighting Equipment and Accessories, ANSI E11.1-2004, American National Standards Institute, Washington, DC, 2004.
9. M. Rea, Ed., The IESNA Lighting Handbook, Ninth Edition, Illuminating Engineering Society of North America, New York, NY, 2000.
10. S. S. Stevens, "On the psychophysical law," Psychological Review 64(3):153-181, 1957.
11. C. W. Tyler and R. W. Hamer, "Analysis of visual modulation sensitivity. IV. Validity of the Ferry-Porter law," J Optical Society of America A 7(4):743-58, 1990.
12. C. W. Tyler and R. W. Hamer, "Eccentricity and the Ferry-Porter law," J. Optical Society of America A 10(9):2084-2087, 1993.
13. H. de Lange, "Research into the dynamic nature of the human fovea-cortex systems with intermittent and modulated light. II. Phase shift in brightness and delay in color perception," J. Optical Society of America 48: 784-789, 1958.
14. D. H. Kelley, "Visual responses to time-dependent stimuli. I. Amplitude sensitivity measurements," J. Optical Society of America 51:422-429.
15. th IEEE Semi-Therm Symposium, 2004.
16. System Logic Semiconductor, SL70D0948 48-output LED Driver / 9-bit PWM Controller, Technical Data Sheet SL70D0948, System Logic Semiconductor, Seoul, Korea, 2002.
17. W. Howell, Application Note Oil: An Overview of the Electronic Drive Technologies for Intensity Control and Colour Mixing of Low Voltage Light Sources Such As LEDs and LEPs, Artistic License Inc., Middlesex, UK, 2002.
18. I. Ashdown, "Parallel pulse code modulation system and method," US Patent Application 2005/0232132, 2005.
19. B. Katz, Mastering Audio: The Art and the Science, Focal Press, San Francisco, CA, 2002.
20. I. Ashdown, "Control apparatus and method for use with digitally controlled light sources," PCT Patent Application WO 2006039790, 2005.