Patent №
US 4,516,167
Granted
1985-05-07
Filed 1982
Owner
RCA CORPORATION
Lab
—
AI components
2
vision · planning
Assignment
Recorded
Dataset
AIPD
2023_r1 edition
Application
06445479
Video signals are subjected to two-dimensional high-pass spatial filtering as a first step in reducing their dynamic range. Then, in a second step of the compression process, differentiation spikes generated in response to edges of large objects in the original video signals are suppressed. This is done in real time using an adaptive non-linear amplifier, the gains of which in a number of amplitude zones are controlled by a histogram of the high-pass-filtered video signals.
AI classification
Ownership
RCA CORPORATION
assignment · 40730442
Assignors
DION, DONALD F., CANTELLA, MICHAEL J.
On an employer assignment, the assignors are typically the inventors.