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US 2008/0168470 A1Published application
Time synchronization of media playback in multiple processes
AssigneeApple Inc.
InventorsJohn Samuel Bushell, Gregory R. Chapman, James D. Batson
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Abstract
Systems, methods, devices enable the efficient synchronization of timing information from first time-based process to a second time-based process using periodic or event-driven synchronization messages.
Claims40
A media processing system comprising:
- a first process for processing media based, at least in part, on first timing information derived from a first timing source, and
- a second process for processing the media based, at least in part, on second timing information,
- wherein the first process sends one or more timing synchronization messages to the second process to synchronize the second timing information with the first timing information.
A personal media device comprising:
- a processor including:
- a first process for processing media based, at least in part, on first timing information derived from a first timing source, and
- a second process for processing the media based, at least in part, on second timing information,
- wherein the first process sends one or more timing synchronization messages to the second process to synchronize the second timing information with the first timing information.
1 more element
A method for processing media comprising:
- processing the media based, at least in part, on first timing information derived from a first timing source, and
- processing the media based, at least in part, on second timing information,
- synchronizing the second timing information with the first timing information using one or more synchronization messages between a first and second process.
A computer readable medium having computer executable code embedded therein for processing media, the executable code performing the following functions:
- processing the media based, at least in part, on first timing information derived from a first timing source, and
- processing the media based, at least in part, on second timing information,
- synchronizing the second timing information with the first timing information using one or more timing synchronization messages between a first and second process.
Dependencies are inferred from the claim text.