Video streams for closed caption testing and the like
AssigneeSarnoff Corporation
InventorCharles B. Dieterich
Life of this patent
Estimating the term…
Abstract
A data structure, such as a digital television signal, includes (a) a video stream representing a picture and (b) auxiliary information, such as a closed caption stream. In one embodiment, the picture has an inset window representative of a reduced version of the picture properly overlaid by the auxiliary information. In another embodiment, the data structure has two or more auxiliary information streams, and the picture is used to independently test the auxiliary information processing of each of the auxiliary information streams.
Claims14
A data structure (see, e.g., FIGS. 3A-3E and 5A-5C) for testing auxiliary information processing of a decoder, wherein the data structure comprises:
- (a) a video stream comprising a coded representation of a picture;
- and
- (b) an auxiliary information stream comprising a coded representation of auxiliary information for the picture, wherein the picture comprises an inset window representative of a reduced version of the picture properly overlaid by the auxiliary information.
A method for generating a data structure to be used for testing auxiliary information processing of a decoder, the method comprising the steps of:
- (1) receiving information for the data structure;
- and
- (2) generating the data structure from the information, wherein the data structure comprises:
- (a) a video stream comprising a coded representation of a picture;
- and
- (b) an auxiliary information stream comprising a coded representation of auxiliary information for the picture, wherein the picture comprises an inset window representative of a reduced version of the picture properly overlaid by the auxiliary information.
A data structure (see, e.g., FIGS. 5A-5C) for testing auxiliary information processing of a decoder, wherein the data structure comprises:
- (a) a video stream comprising a coded representation of a picture;
- and
- (b) two or more auxiliary information streams, each comprising a coded representation of auxiliary information for the picture, wherein the picture is used to independently test the auxiliary information processing of each of the auxiliary information streams.
A method for generating a data structure to be used for testing auxiliary information processing of a decoder, the method comprising the steps of:
- (1) receiving information for the data structure;
- and
- (2) generating the data structure from the information, wherein the data structure comprises:
- (a) a video stream comprising a coded representation of a picture;
- and
- (b) two or more auxiliary information streams, each comprising a coded representation of auxiliary information for the picture, wherein the picture is used to independently test the auxiliary information processing of each of the auxiliary information streams.
Dependencies are inferred from the claim text.