Method and apparatus for storing content

• US 7,260,312 B2
• Filed: 06/28/2001
• Issued: 08/21/2007
• Est. Priority Date: 03/05/2001
• Status: Active Grant

• Current Assignee: Rovi Technologies Corporation (Adeia Inc.)
• Original Assignee: Microsoft Corporation
• Inventors: Gates, Matthijs A., Srinivasan, Jai, Chakrabarti, Alok, Sankarayan, Mukund
• Primary Examiner(s): Nguyen; Huy
• Application Number:
  US09/896,902
• Publication Number:
  US 20020124099A1
• Time in Patent Office: 2,245 Days
• Field of Search: 386/46, 386/83, 386/95, 386/68, 386/109, 386/111, 386/125
• US Class Current: 386/248
• CPC Class Codes: G11B 2220/20 Disc-shaped record carriers
• CPC Class Codes: G11B 2220/455 said record carriers being in one device and being used as primary and secondary/backup media, e.g. HDD-DVD combo device, or as source and target media, e.g. PC and portable player
• CPC Class Codes: G11B 27/034 on discs G11B27/036, G11B27/038 take precedence
• CPC Class Codes: G11B 27/036 Insert-editing
• CPC Class Codes: G11B 27/105 of operating discs
• CPC Class Codes: G11B 27/28 by using information signals recorded by the same method as the main recording G11B27/22 takes precedence
• CPC Class Codes: H04H 60/27 Arrangements for recording or accumulating broadcast information or broadcast-related information
• CPC Class Codes: H04H 60/73 using meta-information
• CPC Class Codes: H04N 5/76 Television signal recording

Abstract

A system receives a broadcast program and temporarily stores the program data. A request is received to permanently record the broadcast program. This request is received after a portion of the broadcast program has been received and temporarily stored. The broadcast program is then permanently recorded, including the temporarily stored program data. A metafile identifies portions of the broadcast program and is accessible by a reader to continuously retrieve the stored portions of the broadcast program.

Claims

1. A method comprising:

storing a first portion of a broadcast data stream as a time shifted data file, wherein the time shifted data file allows a user to pause a live broadcast data stream of data without loss of data and also allows a user to seek forward and backward through the data stream;

storing a second portion of the broadcast data stream as a recorded data file, wherein the time shifted data file has a different data storage format than the recorded data file; and

creating a metafile that identifies the first portion of the broadcast data stream and the second portion of the broadcast data stream, wherein the metafile is accessible by a reader to continuously retrieve the first portion of the broadcast data stream and the second portion of the broadcast data stream.

2. A method as recited in claim 1 wherein the first portion of the broadcast data stream and the second portion of the broadcast data stream are stored on a hard disk drive.

3. A method as recited in claim 1 wherein the first portion of the broadcast data stream and the second portion of the broadcast data stream are portions of a television broadcast.

4. A method as recited in claim 1 wherein the first portion of the broadcast data stream and the second portion of the broadcast data stream are portions of an Internet Protocol multicast.

5. A method as recited in claim 1 further comprising retrieving a continuous stream of data by accessing the metafile, wherein the continuous stream of data includes the first portion of the broadcast data stream and the second portion of the broadcast data stream.

6. A method as recited in claim 1 wherein the first portion of the broadcast data stream and the second portion of the broadcast data stream are contiguous portions of a broadcast.

7. A method as recited in claim 1 further comprising deleting the first portion of the broadcast data stream after a predetermined time period.

8. A method as recited in claim 1 wherein storing the second portion of the broadcast data stream as a recorded data file is performed in response to a record operation.

9. A method comprising:

storing a broadcast data stream in a data file, wherein at least part of the broadcast data stream is stored as time shifted data and at least part of the broadcast data stream is stored as recorded data, wherein the time shifted data allows a user to pause a live broadcast data stream of data without loss of data and also allows a user to seek forward and backward through the data stream, and wherein the time shifted data is stored using a different storage format than the recorded data;

creating a first metafile associated with a first portion of the data file; and

creating a second metafile associated with a second portion of the data file, wherein the first metafile and the second metafile include a common portion of the data file.

10. A method as recited in claim 9 wherein part of the broadcast data stream is stored as permanently recorded data.

11. A method as recited in claim 9 wherein part of the broadcast data stream is stored as permanently recorded data and the first portion of the data file is associated with both time shifted data and permanently recorded data.