DUAL PROCESSOR BASED DIGITAL MEDIA PLAYER ARCHITECTURE WITH NETWORK SUPPORT

• US 20080005257A1
• Filed: 06/29/2006
• Published: 01/03/2008
• Est. Priority Date: 06/29/2006
• Status: Abandoned Application

• Current Assignee: Kestrelink Corp.
• Original Assignee: Kestrelink Corp.
• Inventors: Kendall, Benjamin A., Carnahan, Jason D., Baker, Steven T.
• Application Number:
  US11/427,496
• Publication Number:
  US 20080005257A1
• Time in Patent Office: Days
• US Class Current: 709/212
• CPC Class Codes: H04L 12/2838 Distribution of signals within a home automation network, e.g. involving splitting/multiplexing signals to/from different paths adaptations of television systems for transmission by electric cable for domestic distribution H04N7/106; hybrid transport H04L12/6418; home network arrangements specially adapted for distribution of digital video signals H04N7/24
• CPC Class Codes: H04L 65/75 Media network packet handling
• CPC Class Codes: H04L 69/12 Protocol engines
• CPC Class Codes: H04N 21/4184 providing storage capabilities, e.g. memory stick
• CPC Class Codes: H04N 21/42646 for reading from or writing on a non-volatile solid state storage medium, e.g. DVD, CD-ROM
• CPC Class Codes: H04N 21/43615 Interfacing a Home Network, e.g. for connecting the client to a plurality of peripherals home Audio Video Interoperability [HAVI] data switching networks H04L12/2805
• CPC Class Codes: H04N 21/43637 involving a wireless protocol, e.g. Bluetooth, RF or wireless LAN [IEEE 802.11] arrangements for wireless networking or broadcasting of information in indoor or near-field type systems H04B10/114

Abstract

A system for accessing data across a network. The system includes a first processor configured to consume data. A second processor is connected to the first processor via a physical media storage interface. As such, the first processor interfaces with the second processor as if the second processor were a physical media storage device. The second processor is connectable via a network interface to a physical media storage device so as to be able to provide data from the physical media storage device to the first processor. The system includes a computer readable medium including computer executable instructions configured to compensate for at least one of time latencies or network connection problems caused by the network interface between the second processor and the physical media storage device.

Claims

1. In a computing environment, a system for accessing data across a network, the system comprising:

a first processor configured to consume data;

a second processor coupled to the first processor via a physical media storage interface such that the first processor interfaces with the second processor as if the second processor were a physical media storage device, and wherein the second processor is connectable via a network interface to a physical media storage device so as to be able to provide data from the physical media storage device to the first processor; and

a computer readable medium comprising computer executable instructions configured to compensate for at least one of time latencies or network connection problems caused by the network interface between the second processor and the physical media storage device.

2. The system of claim 1 wherein the first processor comprises a media decoder processor for decoding compressed video files.

3. The system of claim 1 wherein the computer executable instructions are configured to correlate DMA requests to prevent multiple DMAs from being requested at a given time.

4. The system of claim 1 wherein the computer executable instructions implement a wait corresponding to a number of IDE sectors left to read as dictated by an IDE sectors to read count variable.

5. The system of claim 4 wherein the wait implements a mutex to lock DMA resources from being used while a first DMA is active to prevent a simultaneous second DMA.

6. The system of claim 1 wherein the computer executable instructions implement a time-out and cancellation of a first DMA request to allow a subsequent DMA request to be issued without conflicting with the first DMA request.

7. The system of claim 1 further wherein the computer executable instructions are configured to reset a file position when DMA requests, associated with a trick mode, time-out.

8. The system of claim 1 further wherein the second processor is coupled to the first processor with a hardware line to indicate to the first processor that the second processor has diagnostic data to pass to the first processor.

9. The system of claim 1 further wherein the network interface comprises a wireless network interface.

10. The system of claim 1 further wherein the network interface comprises a wired network interface.

11. The system of claim 1 wherein the physical media storage interface comprises an IDE bus.

12. The system of claim 1 wherein the computer executable instructions are configured to issue a pause or stop trick mode command to a trick mode state machine.

13. The system of claim 1 wherein the computer executable instructions are configured to reset DMA interrupts.

14. The system of claim 1 wherein the computer executable instructions are configured to disable DMA interrupts.

15. The system of claim 1 wherein the computer executable instructions comprises computer executable instructions for performing a file type and bitrate check that accounts for IDE bus delays.

16. In a computing environment, a method for accessing data across a network, the method comprising:

receiving at a first processor, data from a second processor, wherein the data is received from the second processor across a physical media storage interface, further wherein the second processor retrieves the data across a network interface from a physical media storage device; and

compensating for at least one of time latencies or network connection problems caused by the network interface between the second processor and the physical media storage device.

17. The method of claim 16, wherein compensating for at least one of time latencies or network connection problems caused by the network interface between the second processor and the physical media storage device multiple DMAs from being requested at a given time comprises implementing a wait corresponding to a number of sectors left to read as dictated by a sectors to read count variable.

18. The method of claim 16, wherein compensating for at least one of time latencies or network connection problems caused by the network interface between the second processor and the physical media storage device comprises preventing multiple DMAs from being requested at a given time

19. The method of claim 16, wherein compensating for at least one of time latencies or network connection problems caused by the network interface between the second processor and the physical media storage device comprises implementing a time-out and cancellation of a first DMA request to allow a subsequent DMA request to be issued without conflicting with the first DMA request.

20. In a computing environment, a method for providing data from a network connected physical media storage device, the method comprising:

at a first processor, receiving data from the physical media storage device across the network;

providing the data received from the physical media storage device to a second processor across a physical media storage interface; and

compensating for at least one of time latencies or network connection problems caused by a network interface between the first processor and the physical media storage device.