Patent · US Active

Frame conversion for adaptive streaming alignment

US11770582B2 · kind B2 · utility

0Cited by

2References

2Claims

0Family size

Assignees

Dolby Laboratories Licensing Corporation · US
Dolby International AB · IE

Inventors

Michael Hoffmann · Pacifica, US
Christof Fersch · Dresden, DE
Marvin PRIBADI · Redwood City, US
Holger Hoerich · Bad Mergentheim, DE

Key dates

Filing date	May 26, 2022
Grant date	Sep 26, 2023
Priority date	—
Expiry date	May 26, 2042

Classification

Technology area (CPC H)Electricity
CPC primaryH04N21/6473
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

Methods for generating an AV bitstream (e.g., an MPEG-2 transport stream or bitstream segment having adaptive streaming format) such that the AV bitstream includes at least one video I-frame synchronized with at least one audio I-frame, e.g., including by re-authoring at least one video or audio frame (as a re-authored I-frame or a re-authored P-frame). Typically, a segment of content of the AV bitstream which includes the re-authored frame starts with an I-frame and includes at least one subsequent P-frame. Other aspects are methods for adapting such an AV bitstream, audio/video processing units configured to perform any embodiment of the inventive method, and audio/video processing units which include a buffer memory which stores at least one segment of an AV bitstream generated in accordance with any embodiment of the inventive method.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.