Use of a media cache for subsequent copying acceleration

• US 7,213,085 B2
• Filed: 11/15/2002
• Issued: 05/01/2007
• Est. Priority Date: 11/15/2002
• Status: Expired due to Fees

• Current Assignee: Microsoft Technology Licensing LLC (Microsoft Corporation)
• Original Assignee: Microsoft Corporation
• Inventors: Allard, James E., Henshaw, Jeffrey D.
• Primary Examiner(s): Sparks; Donald
• Assistant Examiner(s): MARTINEZ, DAVID E
• Application Number:
  US10/298,450
• Publication Number:
  US 20040098533A1
• Time in Patent Office: 1,628 Days
• Field of Search: 710/52, 710/56, 710/57, 711/118, 711/123, 711/126, 711/137, 707/1, 707/2, 707100-102
• US Class Current: 710/52
• CPC Class Codes: G06F 12/0866 for peripheral storage systems, e.g. disk cache
• CPC Class Codes: G11B 20/10527 Audio or video recording; Data buffering arrangements G11B20/12 - G11B20/18 take precedence
• CPC Class Codes: G11B 2020/1062 Data buffering arrangements, e.g. recording or playback buffers

Abstract

The apparent speed with which a media work is ripped to copy the work into a visible store is substantially reduced. When the media work is played, its content is cached onto a persistent, fast access storage media. If the user subsequently decides to rip the media work, the content of the cache is copied to a visible store in substantially less time than would be required to play the media work and convert it. The user thus perceives that the media work is ripped in a substantially shorter time, compared to that required for ripping the media work in a conventional manner. The ripping process may encode or transform the format of the content to a desired format for use within the visible store. Constraints may be imposed by the user to limit the cache, or the caching process may be hidden from the user.

Claims

1. A method for increasing a speed with which digital data stored on a digital medium are ripped so that the digital data are entered into a visible store in a form that is playable, comprising the steps of:

(a) enabling a user to play the digital medium at a speed appropriate to experience the content provided by the digital data stored on the digital medium;

(b) while thus playing the digital medium, storing the digital data in a cache maintained in a non-volatile memory, said cache being accessible at a higher data rate than the digital content stored on the digital medium;

(c) hiding the cache and the digital data stored therein so that they are not apparent to the user and cannot be played by the user; and

(d) at a subsequent time, copying the digital data that are stored in the cache into the visible store on the non-volatile memory if the user decides to rip the digital data and selectively initiates entry of the digital data into the visible store, said digital data in the cache appearing in the visible store faster than if transferred from the digital medium and being playable by the user after being transferred into the visible store.

2. The method of claim 1, further comprising the step of encoding the digital data into a format desired for use in the visible store.

3. The method of claim 1, wherein the step of storing the digital data in the cache comprises the step of storing the digital data on a hard drive.

4. The method of claim 1, further comprising the step of automatically determining if the digital data are already stored in the cache when the digital medium source is subsequently again played at the speed appropriate to experience the content provided by the digital data.

5. The method of claim 1, further comprising the step of storing the digital data in the cache only after the digital medium source has been played a predefined number of times at the speed appropriate to experience the content provided by the digital data.

6. The method of claim 1, further comprising the step of limiting the digital data stored in the cache in regard to at least one of:

(a) a lapse of a predefined time interval since the digital data were stored in the cache;

(b) a predefined limit for an amount of digital data stored in the cache;

(c) a predefined percentage of storage available in the non-volatile memory;

(d) a predefined number of discrete works of digital data stored in the cache; and

(e) a number of times that the digital medium has been played.

7. The method of claim 1, further comprising the step of padding and buffering the digital data being stored in the cache.

8. The method of claim 1, further comprising the step of creating a database entry associated with the digital data being stored in the cache, said entry indicating the content of the cache.

9. The method of claim 8, wherein the database comprises a catalog of digital data works included in the visible store.

10. The method of claim 1, wherein the cache and visible store comprise the non-volatile memory.

11. A memory medium storing machine instructions for implementing the steps of claim 1.

12. A system for increasing a speed with which digital data stored on a digital medium are ripped so that the digital data are entered into a visible store in a form that is playable, comprising:

(a) memory in which machine instructions are stored, said memory including a non-volatile portion;

(b) a digital medium player coupled to at least one of an audio output device and a display; and

(c) a processor coupled to the memory and the digital medium player, said processor executing the machine instructions stored in the memory, which cause the processor to carry out a plurality of functions, including;

(i) enabling a user to play the digital medium with the digital medium player at a speed appropriate to experience the content provided by the digital data stored on the digital medium on said at least one of the audio output device and the display;

(ii) while thus playing the digital medium, storing the digital data in a cache maintained in the non-volatile memory, said cache being accessible at a higher data rate than the digital content stored on the digital medium;

(iii) hiding the cache and the digital data stored therein so that they are not apparent to the user; and

(iv) at a subsequent time, copying the digital data that are stored in the cache into the visible store on the non-volatile memory if the user decides to rip the digital data and selectively initiates entry of the digital data into the visible store, said digital data in the cache appearing in the visible store faster than if transferred from the digital medium and being playable by the user after being transferred into the visible store.

13. The system of claim 12, wherein the machine instructions executing on the processor further cause it to encode the digital data into a format desired for use in the visible store.

14. The system of claim 12, wherein the non-volatile memory in which the cache is stored comprises a portion of a hard drive medium.

15. The system of claim 12, wherein the machine instructions executing on the processor further cause it to automatically determine if the digital data are already stored in the cache when the digital medium source is subsequently again played at the speed appropriate to experience the content provided by the digital data.

16. The system of claim 12, wherein the machine instructions executing on the processor further cause it to store the digital data in the cache only after the digital medium source has been played a predefined number of times at the speed appropriate to experience the content provided by the digital data.

17. The system of claim 12, wherein the machine instructions executing on the processor further cause it to limit the digital data stored in the cache in regard to at least one of:

(a) a lapse of a predefined time interval since the digital data were stored in the cache;

(b) a predefined limit for an amount of digital data stored in the cache;

(c) a predefined percentage of storage available in the non-volatile memory;

(d) a predefined number of discrete works of digital data stored in the cache; and

(e) a number of times that the digital medium has been played.

18. The system of claim 12, wherein the machine instructions executing on the processor further cause it to pad and buffer the digital data being stored in the cache.

19. The system of claim 12, wherein the machine instructions executing on the processor further cause it to create a database entry associated with the digital data being stored in the cache in a database included in the non-volatile memory, said entry indicating the content of the cache.

20. The system of claim 19, wherein the database comprises a catalog of digital data works included in the visible store.

21. The system of claim 13, wherein the cache and visible store comprise the non-volatile memory.