Fragmentation of a file for instant access
First Claim
1. A method for fragmenting a file pertaining to a title, the method comprising:
- dividing the file into a sequence of data blocks, the sequence of data blocks partitioned into a first portion and a second portion;
forming a header from the data blocks in the first portion, the data blocks in the header being consecutive; and
forming N segments, each of the N segments including some of the data blocks in the second portion, the data blocks in each of the N segments are nonconsecutive, wherein N is a finite integer greater than 1.
6 Assignments
0 Petitions
Accused Products
Abstract
Techniques for fragmenting a file or a collection of media data are disclosed. According one aspect of the techniques, a file pertaining to a title is fragmented into a header and several tails or segments. The header is a continuous portion of the file while the segments are respective parts of the remaining portion of the file. The header is seeded substantially in all boxes, and none, one or more of the segments are distributed in each of the boxes in service. When a title is ordered, the header is instantly played back while the segments, if not locally available, are continuously fetched respectively from other boxes that have the segments.
-
Citations
36 Claims
-
1. A method for fragmenting a file pertaining to a title, the method comprising:
-
dividing the file into a sequence of data blocks, the sequence of data blocks partitioned into a first portion and a second portion;
forming a header from the data blocks in the first portion, the data blocks in the header being consecutive; and
forming N segments, each of the N segments including some of the data blocks in the second portion, the data blocks in each of the N segments are nonconsecutive, wherein N is a finite integer greater than 1. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
-
-
16. A method for fragmenting a file pertaining to a title, the method comprising:
-
dividing the file into a sequence of data blocks, the sequence of data blocks partitioned into a first portion and a second portion;
forming a header from the data blocks in the first portion, the data blocks in the header being consecutive, wherein the header is to be cached locally in each of boxes in service;
decimating the second portion into a plurality of segments, wherein none or at least one of the segments are to be distributed in each of the boxes. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25)
-
-
26. A software product to be executable in a computing device for fragmenting a file pertaining to a title, the software product comprising:
-
program code for dividing the file into a sequence of data blocks, the sequence of data blocks partitioned into a first portion and a second portion;
program code for forming a header from the data blocks in the first portion, the data blocks in the header being consecutive; and
program code for forming N segments, each of the N segments including some of the data blocks in the second portion, the data blocks in each of the N segments are nonconsecutive, wherein N is a finite integer greater than 1. - View Dependent Claims (27, 28, 29, 30)
-
-
31. A software product to be executable in a computing device for fragmenting a file pertaining to a title, the software product comprising:
-
program code for dividing the file into a sequence of data blocks, the sequence of data blocks partitioned into a first portion and a second portion;
program code for forming a header from the data blocks in the first portion, the data blocks in the header being consecutive, wherein the header is to be cached locally in each of boxes in service; and
program code for decimating the second portion into a plurality of segments, wherein none or at least one of the segments are to be distributed in each of the boxes. - View Dependent Claims (32, 33, 34, 35, 36)
-
Specification