IP Library › Granted Patent US 6,580,809
Granted Patent Utility
US 6,580,809 · Confirmation No. 7387

QUANTIZATION-BASED DATA HIDING EMPLOYING CALIBRATION AND LOCALLY ADAPTIVE QUANTIZATION

⬇ PDF
 Code Description Pages PDF
2011-03-11 N570 Communication - Re: Power of Attorney (PTOL-308) 1 View
2011-03-11 N570 Communication - Re: Power of Attorney (PTOL-308) 1 View
2011-03-03 PA.. Power of Attorney 1 View
2011-03-03 N417 Electronic Filing System Acknowledgment Receipt 2 View
2011-03-03 R3.73 Assignee showing of ownership per 37 CFR 3.73 2 View
2002-03-22 TRNA Transmittal of New Application 1 View
2002-03-22 ADS Application Data Sheet 2 View
2002-03-22 SPEC Specification 32 View
2002-03-22 CLM Claims 3 View
2002-03-22 ABST Abstract 1 View
2002-03-22 DRW Drawings-only black and white line drawings 9 View
2002-03-22 OATH Oath or Declaration filed 1 View
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this application's details
Quick Facts
Patent No.
US 6,580,809
App. No.
10/105,013
Filed
2002-03-22
Granted
2003-06-17
Pub. No.
US20020172396A1
Art Unit
2621
PTA
-68 days