Alexander Perumal Jr.

Follow

Person

Poway, CA, US

People

Patents Grantslast 30 patents

Information Patent Grant
Color digital halftoning using black and secondary color replacement
- Patent number 5,917,994
- Issue date Jun 29, 1999
- Hewlett-Packard Company
- Alexander Perumal
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Halftone dither cell with integrated preferred color matching
- Patent number 5,710,827
- Issue date Jan 20, 1998
- Hewlett-Packard Company
- Alexander Perumal
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Color digital halftoning using black and secondary color replacement
- Patent number 5,657,137
- Issue date Aug 12, 1997
- Hewlett-Packard Company
- Alexander Perumal
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Color digital halftoning using black and secondary color replacemen...
- Patent number 5,473,446
- Issue date Dec 5, 1995
- Hewlett-Packard Company
- Alexander Perumal
- H04 - ELECTRIC COMMUNICATION TECHNIQUE