Audio buffer selective data processing

• US 20030195978A1
• Filed: 04/11/2002
• Published: 10/16/2003
• Est. Priority Date: 04/11/2002
• Status: Abandoned Application

• Current Assignee: International Business Machines Corporation
• Original Assignee: International Business Machines Corporation
• Inventors: Waters, Timothy Moffett, Gusler, Carl Phillip, Hamilton, Rick Allen II, Fellenstein, Craig
• Application Number:
  US10/122,008
• Publication Number:
  US 20030195978A1
• Time in Patent Office: Days
• US Class Current: 709/231
• CPC Class Codes: H04L 65/1101 Session protocols
• CPC Class Codes: H04L 65/611 for multicast or broadcast systems for broadcast or conference H04L12/18; arrangements for broadcast or distribution combined with broadcast H04H20/00; arrangements for broadcast applications with a direct linkage to broadcast information or to broadcast space-time H04H60/00; selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS], H04W4/06
• CPC Class Codes: H04L 65/70 Media network packetisation

Abstract

A method and system are provided in which broadcast signals are received and converted into data streams for processing. A user is enabled to select preferred broadcast stations for monitoring and signals from the selected stations are converted into digital data streams which are input to first-in first-out (FIFO) memory units to enable a local storage of a segment of predetermined duration of broadcast signals on different FIFO tracks in a user receiving device. The FIFO is dynamically allocated for the selected stations and as each FIFO memory for each selected station becomes full, old information or content is moved out of memory as new information or content is applied to the FIFO. The receiving device includes means for enabling a user to move forward or backward within the stored segment. Partitions or markers are provided to separate broadcast content items, such as sequentially played songs within the stored segment, to enable incremental movement to selected positions within the stored segment. Sections of stored segments which are selected for user processing are copied to separate memory locations for access to avoid interference with the continuing FIFO storage of received broadcast signals.

Claims

1. A method for processing digital data streams for playing on an audio output device, said method comprising:

applying a plurality of digital data streams to a corresponding plurality of memory channels, said memory channels including a number of first-in first-out (FIFO) memory units;

enabling a selection of one of said memory channels for playing a digital data stream applied to said selected memory channel on said audio output device;

copying at least a segment of said digital data stream applied to said selected memory channel from said selected one memory channel to a separate working memory location; and

accessing said segment of said digital data stream from said working memory location in response to selected audio output device playing options.

2. The method as set forth in claim 1 wherein said working memory location comprises a non-volatile memory separate from said FIFO memory units.

3. The method as set forth in claim 2 wherein said nonvolatile memory comprises a flash memory device.

4. The method as set forth in claim 1 wherein said digital data streams include markers separating segments of said digital data stream, said method further including enabling a user to select one of said markers as a start point for playing said selected digital data stream.

5. The method as set forth in claim 4 wherein said audio output device playing options include enabling a forward movement to a next sequential marker within said selected digital data stream.

6. The method as set forth in claim 4 wherein said audio output device playing options include enabling a forward movement to a real time position within said selected digital data stream.

7. The method as set forth in claim 4 wherein said audio output device playing options include enabling a reverse movement to a past sequential marker within said selected digital data stream.

8. The method as set forth in claim 4 wherein said audio output device playing options include enabling a reverse movement to a past starting point within said selected digital data stream.

9. The method as set forth in claim 4 wherein said audio output device playing options include enabling a repeat function by which a selected segment of said selected digital data stream is played repeatedly by said audio output device.

10. A storage medium, said storage medium being selectively coupled to processing circuitry, said storage medium containing indicia readable by said processing circuitry for providing program signals to control a processing of digital data streams for playing said digital data streams on an audio output device, said program signals being effective for enabling:

applying a plurality of digital data streams to a corresponding plurality of memory channels, said memory channels including a number of first-in first-out (FIFO) memory units;

enabling a selection of one of said memory channels for playing a digital data stream applied to said selected memory channel on said audio output device;

copying at least a segment of said digital data stream applied to said selected memory channel, from said selected one memory channel to a separate working memory location; and

accessing said segment of said digital data stream from said working memory location in response to selected audio output device playing options.

11. The medium as set forth in claim 10 wherein said working memory location comprises a non-volatile memory separate from said FIFO memory units.

12. The medium as set forth in claim 11 wherein said nonvolatile memory comprises a flash memory device.

13. The medium as set forth in claim 10 wherein said digital data streams include markers separating segments of said digital data streams, said program signals being further effective for enabling a user to select one of said markers as a start point for playing said selected digital data stream.

14. The medium as set forth in claim 13 wherein said audio output device playing options include enabling a forward movement to a next sequential marker within said selected digital data stream.

15. The medium as set forth in claim 13 wherein said audio output device playing options include enabling a forward movement to a real time position within said selected digital data stream.

16. The medium as set forth in claim 13 wherein said audio output device playing options include enabling a reverse movement to a past sequential marker within said selected digital data stream.

17. The medium as set forth in claim 13 wherein said audio output device playing options include enabling a reverse movement to a past starting point within said selected digital data stream.

18. The medium as set forth in claim 13 wherein said audio output device playing options include enabling a repeat function by which a selected segment of said selected digital data stream is enabled to be played repeatedly by said audio output device.

19. A system for processing a plurality of digital data streams for playing on an audio output device, said system comprising:

a system bus;

a CPU device connected to said system bus;

a plurality of memory channels connected to said system bus;

an input device connected to said system bus, said input device being arranged to enable user input to said system;

a user display device connected to said system bus;

an audio output device; and

means arranged for applying a plurality of digital data streams to a corresponding plurality of said memory channels, said memory channels including a number of first-in first-out (FIFO) memory units, said system being further operable for enabling a selection of one of said memory channels for playing a digital data stream applied to said selected memory channel on said audio output device, and copying at least a segment of said digital data stream applied to said selected memory channel, from said selected one memory channel to a separate working memory location, said system being operable for 3accessing said segment of said digital data stream from said working memory location in response to selected audio output device playing options.