Method and system for synchronizing isochronous data on...

Details Method and system for synchronizing isochronous data on... Method and system for synchronizing isochronous data on...

2006-05-16

2006-05-16

Pham, Chi (Department: 2667)

Multiplex communications

Pathfinding or routing

Switching a message which includes an address header

C370S503000

Reexamination Certificate

active

07046670

ABSTRACT:
The present invention generally relates to synchronization of isochronous data. More specifically, the present invention relates to method and system for synchronizing isochronous data on transmit over IEEE 1394 bus from content unaware devices. In an exemplary embodiment, the system includes an isochronous data processor (IDP) which is controlled by a firmware control. The IDP receives data packets from a device and inserts a data marker at the beginning of each packet. Each data marker and the associated packet are then stored onto a hard disk. When data are retrieved from the hard disk, the IDP uses the data markers to synchronize data delivery to a requesting device so that data delivery is started on a packet which represents the start of a frame. In the event that a packet within the data stream is corrupted, the IDP also uses the data markers to re-synchronize data delivery so that data delivery is re-initiated on a packet which represents the start of the next frame.

REFERENCES:
patent: 6414971 (2002-07-01), James et al.
patent: 6434146 (2002-08-01), Movshovich et al.
patent: 6593937 (2003-07-01), Ludtke et al.
patent: 6687264 (2004-02-01), Yoon et al.
patent: 2004/0125825 (2004-07-01), Lym et al.
patent: 1087581 (2001-03-01), None

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