Apparatus for digitally filtering a video signal, and related method
First Claim
Patent Images
1. An apparatus for digitally filtering a video signal, comprising:
- an analog-to-digital converter for converting the video signal into a plurality of sampled values; and
a correction circuit, coupled to the analog-to-digital converter, for determining whether distribution of at least one portion of the sampled values belongs to one of a plurality of specific types according to the sampled values, and compensating the at least one portion of the sampled values according to a correction operation corresponding to the one of the specific types to generate a digital output signal corresponding to the video signal;
wherein the specific types comprise at least one smear effect or at least one ringing effect, wherein the at least one smear effect comprises a pulse smear effect and an edge smear effect, and the at least one ringing effect comprises a rising edge ringing effect and a falling edge ringing effect.
1 Assignment
0 Petitions
Accused Products
Abstract
A method for digitally filtering a video signal comprises: converting the video signal into a plurality of sampled values; determining whether distribution of at least one portion of the sampled values belongs to one of a plurality of specific types according to the sampled values; and generating a plurality of output values according to a correction operation corresponding to the one of the specific types.
-
Citations
10 Claims
-
1. An apparatus for digitally filtering a video signal, comprising:
-
an analog-to-digital converter for converting the video signal into a plurality of sampled values; and a correction circuit, coupled to the analog-to-digital converter, for determining whether distribution of at least one portion of the sampled values belongs to one of a plurality of specific types according to the sampled values, and compensating the at least one portion of the sampled values according to a correction operation corresponding to the one of the specific types to generate a digital output signal corresponding to the video signal; wherein the specific types comprise at least one smear effect or at least one ringing effect, wherein the at least one smear effect comprises a pulse smear effect and an edge smear effect, and the at least one ringing effect comprises a rising edge ringing effect and a falling edge ringing effect. - View Dependent Claims (2, 3, 4, 5)
-
-
6. A method for digitally filtering a video signal comprising:
-
converting the video signal into a plurality of sampled values; determining whether distribution of at least one portion of the sampled values belongs to one of a plurality of specific types according to the sampled values; and generating a plurality of output values according to a correction operation corresponding to the one of the specific types; wherein the specific types comprise at least one smear effect or at least one ringing effect, wherein the at least one smear effect comprises a pulse smear effect and an edge smear effect, and the at least one ringing effect comprises a rising edge ringing effect and a falling edge ringing effect. - View Dependent Claims (7, 8, 9, 10)
-
Specification