System and method for storage device emulation in a multimedia processing system

• US 8,949,920 B2
• Filed: 03/17/2005
• Issued: 02/03/2015
• Est. Priority Date: 03/17/2005
• Status: Active Grant

• Current Assignee: VIXS Systems Incorporated (Pixelworks Incorporated)
• Original Assignee: VIXS Systems Incorporated (Pixelworks Incorporated)
• Inventors: Laksono, Indra
• Primary Examiner(s): Zhong, Jun Fei
• Application Number:
  US11/082,591
• Publication Number:
  US 20060212922A1
• Time in Patent Office: 3,610 Days
• Field of Search: 725/131
• US Class Current: 725/131
• CPC Class Codes: H04N 21/4135 external recorder interface circuits between an apparatus for recording television signals and a television receiver H04N5/775
• CPC Class Codes: H04N 5/765 Interface circuits between an apparatus for recording and another apparatus
• CPC Class Codes: H04N 5/85 on discs or drums
• CPC Class Codes: H04N 5/91 Television signal processing therefor
• CPC Class Codes: H04N 9/8042 involving data reduction

Abstract

A device and method for storage device emulation in a multimedia processing system are provided. The device includes a processing module to process multimedia data, a first mass storage device interface operably coupled to the processing module, the first mast storage interface operable to couple to a mass storage device interface of a multimedia processing device and a second mass storage device interface operably coupled to the first mass storage device and the processing module, wherein the second mass storage device is operable to couple to one or more mass storage devices. A method is also provided. The method comprises receiving a first multimedia data at first mass storage device interface of a first multimedia processing device, processing the first multimedia data at the first multimedia processing device to generate a first processed multimedia data and providing the first processed multimedia data to a second mass storage device interface of the first multimedia processing device for output.

Claims

1. An integrated circuit (IC) device comprising:

a first host interface configured to couple to a first client interface of a mass storage device via a first bus, the first host interface, the first client interface, and the first bus compliant with at least one of an ATA specification, an SATA specification, an ATAPI specification, a USB specification, or an IEEE 1394 specification;

a second client interface configured to couple to a second host interface of a multimedia processing device via a second bus, the second client interface, the second host interface, and the second bus compliant with at least one of an ATA specification, an SATA specification, an ATAPI specification, a USB specification, or an IEEE 1394 specification; and

a processing module coupled to the first host interface and the second client interface, the processing module to receive a first multimedia data via the second client interface, perform a first processing operation on the first multimedia data to generate a first processed multimedia data, provide the first processed multimedia data to the first host interface for storage at the mass storage device, subsequently access the first processed multimedia data from the mass storage device via the first host interface, perform a second processing operation on the first processed multimedia data to generate a second processed multimedia data, and provide the second processed multimedia data to the multimedia processing device via the second client interface.

2. The IC device of claim 1, further comprising a storage device emulator to manipulate the second client interface so that the IC device appears as a conventional mass storage device to the second host interface of the multimedia processing device.

3. The IC device of claim 1, wherein the first processing operation comprises at least one of an encoding operation, a decoding operation, a transcoding operation, a ciphering operation, a deciphering operation, or a DVD authoring operation.

4. The IC device of claim 1, wherein the first processing operation comprises a decoding operation and the second processing operation comprises an encoding operation.

5. The IC device of claim 1, wherein the first processing operation comprises an encoding operation and the second processing operation comprises a decoding operation.

6. The IC device of claim 1, wherein the first processing operation comprises a ciphering operation and the second processing operation comprises a deciphering operation.

7. The IC device of claim 1, wherein the first processing operation comprises a deciphering operation and the second processing operation comprises a ciphering operation.

8. The IC device of claim 1, further comprising:

an output to control a switch, the switch operable to couple, in a first mode, the second bus and the second client interface in a first mode and to couple, in a second mode, the second bus and the first bus so as to bypass the IC device.

9. A system comprising:

a first bus compliant with at least one of an ATA specification, an SATA specification, an ATAPI specification, a USB specification, or an IEEE 1394 specification;

a second bus compliant with at least one of an ATA specification, an SATA specification, an ATAPI specification, a USB specification, or an IEEE 1394 specification;

a multimedia processing device comprising a first host interface coupled to the first bus;

a mass storage device comprising a first client interface coupled to the second bus; and

an integrated circuit (IC) device comprising;

a second client interface coupled to the first bus;

a second host interface coupled to the second bus;

a processing module coupled to the second client interface and the second host interface, the processing module to receive a first multimedia data via the second client interface, perform a first processing operation on the first multimedia data to generate a first processed multimedia data, provide the first processed multimedia data to the second host interface for storage at the mass storage device, subsequently access the first processed multimedia data from the mass storage device via the second host interface, perform a second processing operation on the first processed multimedia data to generate a second processed multimedia data, and provide the second processed multimedia data to the multimedia processing device via the second client interface; and

a storage device emulator to manipulate the second client interface so that the IC device appears as a conventional mass storage device to the first host interface of the multimedia processing device.

10. The system of claim 9, wherein the first processing operation comprises at least one of an encoding operation, a decoding operation, a transcoding operation, a ciphering operation, a deciphering operation, or a DVD authoring operation.

11. The system of claim 10, wherein the processing module comprises at least one of an encoder, a decoder, a codec, a transcoder, a content protection module, a DVD authoring module, a deciphering module, or a ciphering module.

12. The system of claim 9, wherein the first processing operation comprises a decoding operation and the second processing operation comprises an encoding operation.

13. The system of claim 9, wherein the first processing operation comprises an encoding operation and the second processing operation comprises a decoding operation.

14. The system of claim 9, wherein the system comprises at least one of a cable set-top box, a personal video recorder (PVR), a DVD player, or a DVD recorder.

15. The system of claim 9, wherein the first processing operation comprises a ciphering operation and the second processing operation comprises a deciphering operation.

16. The system of claim 9, wherein the first processing operation comprises a deciphering operation and the second processing operation comprises a ciphering operation.

17. The system of claim 9, further comprising:

a switch operable to couple, in a first mode, the first bus and the second client interface in a first mode and to couple, in a second mode, the second bus and the first bus so as to bypass the IC device.

18. The system of claim 17, further comprising an output to control the switch.

19. A method comprising:

receiving, at a client interface of an integrated circuit (IC) device, a first multimedia data from a multimedia processing device via a first bus, the client interface and the first bus compliant with at least one of an ATA specification, an SATA specification, an ATAPI specification, a USB specification, or an IEEE 1394 specification;

processing the first multimedia data at a processing module of the IC device to generate a first processed multimedia data;

providing the first processed multimedia data to a host interface of the IC device for transmission from the host interface to a mass storage device via a second bus, the host interface and the second bus compliant with at least one of an ATA specification, an SATA specification, an ATAPI specification, a USB specification, or an IEEE 1394 specification;

accessing the first processed multimedia data from the mass storage device via the second bus;

processing the first processed multimedia data at the processing module to generate a second processed multimedia data; and

providing the second processed multimedia data to the client interface of the IC device for transmission to the multimedia processing device.

20. The method of claim 19, wherein:

processing the first multimedia data comprises encoding the first multimedia data; and

processing the first processed multimedia data comprises decoding the first processed multimedia data.

21. The method of claim 19, wherein:

processing the first multimedia data comprises decoding the first multimedia data; and

processing the first processed multimedia data comprises encoding the first processed multimedia data.

22. The method of claim 19, wherein processing the first multimedia data comprises performing at least one of an encoding operation, a decoding operation, a transcoding operation, a ciphering operation, a deciphering operation, or a DVD authoring operation.

23. The method of claim 19, further comprising:

operating the client interface of the IC device so that the IC device appears as a conventional mass storage device to the multimedia processing device.

24. The method of claim 19, wherein the multimedia processing device, the IC device, and the mass storage device together comprise at least one of a cable set-top box, a personal video recorder (PVR), a DVD player, and a DVD recorder.

25. The method of claim 19, wherein a switch alternatively couples the first bus and the second bus or the client interface of the IC device and the first bus, the method further comprising:

configuring the switch to couple the first bus to the second bus; and

bypassing the IC device for a transfer of a second multimedia data between the multimedia processing device and the mass storage device via the first bus and the second bus.

26. The method of claim 25, further comprising:

controlling the switch based on an output of the IC device.

27. A system comprising:

a switch; and

an integrated circuit (IC) device comprising;

a host interface coupleable to a mass storage device via the switch and a first bus, the host interface and the first bus compliant with at least one of an ATA specification, an SATA specification, an ATAPI specification, a USB specification, or an IEEE 1394 specification;

a client interface configured to couple to a multimedia processing device via a second bus, the client interface and the second bus compliant with at least one of an ATA specification, an SATA specification, an ATAPI specification, a USB specification, or an IEEE 1394 specification; and

a processing module coupled to the host interface and the client interface, the processing module to perform at least one processing operation on multimedia data transferred between the host interface and the client interface; and

wherein the switch is operable to, in a first mode, couple the host interface and the first bus and, in a second mode, couple the first bus and the second bus so as to bypass the IC device.

28. The system of claim 27, wherein the IC device further comprises an output to control the switch.

29. The system of claim 27 further comprising a storage device emulator to manipulate the client interface so that the IC device appears as a conventional mass storage device to the multimedia processing device.

30. The system of claim 27, wherein the at least one processing operation comprises at least one of an encoding operation, a decoding operation, a transcoding operation, a ciphering operation, a deciphering operation, or a DVD authoring operation.