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US 5,668,917 AGranted
Apparatus and method for detection of unwanted broadcast information
OwnerDonald A. Lewineinventor
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Abstract
Unwanted information, such as commercials, is typically transmitted from a transmission station many times each day. The repetitive nature of such unwanted information is used by the present apparatus/method to distinguish unwanted information from normal programming.
Claims10
In a system for detecting commercials or other repeated information, said system having:
- (1) an image memory for holding frames of information;
- (2) said image memory being addressable and having a first frame and additional sequential frames;
- (3) a pointer for addressing said image memory;
- a method for detecting commercials comprising:
- (a) placing frames of information into said image memory;
- (b) setting said pointer to address said first frame in said image memory;
- (c) scanning said image memory for a second frame which matches the frame pointed to by said pointer;
- (d) if no match is found, incrementing said pointer and repeating step (c).
5 more elements
A method for detecting repeated information in a television program comprising:
- (a) storing frames of information in an image memory;
- (b) setting a pointer to point to a first frame stored in said image memory;
- (c) finding a matching frame by comparing frames of information stored in said image memory with the frame pointed to by said pointer;
- (d) finding a matching sequence by comparing at least one frame subsequent to said matching frame with at least one frame subsequent the frame pointed to by said pointer.
1 more element
Dependencies are inferred from the claim text.