Patent №
US 5,748,786
Granted
1998-05-05
Filed 1994
Owner
RICOH COMPANY, LTD., A CORPORATION OF JAPAN
+1 more
Lab
—
AI components
1
vision
Assignment
Recorded
Dataset
AIPD
2023_r1 edition
Application
08310146
A method and apparatus for encoding and decoding data is described. The present invention includes a method and apparatus for generating transformed signals in response to input data. In one embodiment, the transformed signals are generated using a reversible wavelet transform. The present invention also includes a method and apparatus for compressing the transformed signals into data representing a losslessly compressed version of the input data. In one embodiment, the present invention decomposes the input data using a non-minimal length reversible filter. The decomposition may be performed using multiple one-dimension filters.
AI classification
Ownership
RICOH COMPANY, LTD., A CORPORATION OF JAPAN
assignment · 72990132
RICOH CORPORATION
assignment · 72990132