UNIVERSAL MULTIMEDIA

• US 20080307128A1
• Filed: 05/30/2008
• Published: 12/11/2008
• Est. Priority Date: 01/26/2007
• Status: Active Grant

• Current Assignee: Digital Video Chip, LLC
• Original Assignee: Digital Video Chip, LLC
• Inventors: Amron, Alan, Brewer, Eric T.
• Granted Patent: US 8,010,711 B2
• Time in Patent Office: Days
• US Class Current: 710/65
• CPC Class Codes: G06F 16/1847 specifically adapted to static storage, e.g. adapted to flash memory or SSD
• CPC Class Codes: G08C 17/02 using a radio link
• CPC Class Codes: G08C 2201/33 Remote control using macros, scripts
• CPC Class Codes: G08C 2201/92 Universal remote control
• CPC Class Codes: G08C 2201/94 Smart cards
• CPC Class Codes: G08C 23/04 using light waves, e.g. infrared
• CPC Class Codes: H04N 19/156 Availability of hardware or computational resources, e.g. encoding based on power-saving criteria
• CPC Class Codes: H04N 19/40 using video transcoding, i.e. partial or full decoding of a coded input stream followed by re-encoding of the decoded output stream
• CPC Class Codes: H04N 21/440218 by transcoding between formats or standards, e.g. from MPEG-2 to MPEG-4 conversion of standards in analogue television systems H04N7/01

Abstract

A memory device removably insertable into or otherwise removably connected to a plurality of host devices includes a first memory storing multimedia data. A first circuit portion of the memory device determines the host device capabilities when the memory device is connected to a host device and a second circuit portion feeds the multimedia data to the host device in a format compatible with the determined capabilities of the host device.

Claims

1. A memory device removably connectable to a plurality of host devices, comprising:

a first memory storing multimedia data; and

a first circuit portion operable for determining host device capabilities when the memory device is connected to a host device; and

a second circuit portion providing the multimedia from the memory device to the connected host device in a format compatible with the host device capabilities determined by the first circuit.

2. The memory device of claim 1, wherein the multimedia data is stored in a first format and said second circuit portion transforms the multimedia data into the format compatible with the determined host device capabilities.

3. The memory device of claim 2, wherein said second circuit portion includes a transcoder.

4. The memory device of claim 2, wherein said second circuit portion includes a plurality of transcoders, each capable of transforming the multimedia data to a different format.

5. The memory device of claim 3, wherein the transcoder includes a scaling block which scales the multimedia data to fit onto a display screen of the host device.

6. The memory device of claim 3, wherein the transcoder includes a rate controller to adjust the data rate of the multimedia data provided to the host device.

7. The memory device of claim 1, wherein the second circuit portion comprises a very-long-instruction-word processor.

8. The memory device of claim 1, wherein said first circuit portion is configured to present a virtual file system to the host device, the virtual file system including at least two simulated directory structures each having a virtual file, each of the virtual files purporting to be the multimedia data in a different format.

9. The memory device of claim 8, wherein the first circuit portion is configured to determine the virtual file that the host device attempts to access, and determine the host device capabilities based on the determined virtual file.

10. The memory device of claim 8, wherein the second circuit portion is a reduced instruction set computing processor.

11. The memory device of claim 8, wherein the memory device is a flash memory card.

12. A memory device removably connectable to a plurality of host devices, comprising:

a first memory storing multimedia data;

a second memory storing a first program including processor executable steps for determining host device capabilities when the memory device is connected to the host device; and

a third memory storing a second program including processor executable steps for providing the multimedia data to the host device in a format compatible with the host device capabilities by the steps of the first program.

13. The memory device of claim 12, wherein the multimedia data is stored in a first format and said second program further comprises processor executable steps for transforming the multimedia data from the first format into the format compatible with the host device capabilities.

14. The memory device of claim 13, further comprising a transforming processor for executing said second program.

15. The memory device of claim 13, wherein said second program processor executable steps include scaling the multimedia data to fit onto a display screen of the host device.

16. The memory device of claim 13, wherein said second program processor executable steps include adjusting the data rate of the multimedia data fed to the host device.

17. The memory device of claim 12, wherein said first program processor executable steps include presenting a virtual file system to the host device, the virtual file system including at least two simulated directory structures each with a virtual file, each of the virtual files purporting to be the multimedia data in a different format.

18. The memory device of claim 17, wherein said first program processor executable steps include determining which of the virtual files the host device attempts to access, and determining the host device capabilities based on the determined virtual file.

19. The memory device of claim 12, wherein said first program processor executable steps include presenting a plurality of versions of the multimedia data in different directory structures, and determining which of the plurality of versions is accessed by the host device.

20. The memory device of claim 12, wherein said first program processor executable steps include successively presenting the multimedia data in different directory structures until the host device attempts to access the multimedia data.

21. A method of operating a host device having a display and a microprocessor and being configured to derive and at least one of audibly reproduce audio and visually display images from a media file having a recognized compression format, comprising the steps of:

providing a media file in a first compression format not recognized by the host device;

receiving, at a programmable module having a memory and being coupled to an interface port of the host device, an indication of a second compression format that is recognizable by the host device;

transforming data in the first compression format directly to the second compression format without first uncompressing the media file to thereby create a stream of at least one of audio and video which can be audibly reproduced and visually displayed by the host device.

22. The method of claim 21, wherein the programmable module is removable and includes an onboard microprocessor and wherein the step of providing is performed by inserting the programmable module into the host device.

23. The method of claim 22, wherein the memory of the programmable module contains code executable by the onboard microprocessor for processing the indication of a second compression format received during the step of receiving and for initiating the step of transforming.

24. The method of claim 23, further including a step of receiving, at the programmable module, an indication of a display screen size of the host device and wherein the memory of the programmable module further contains code executable by the onboard microprocessor for scaling a video output produced during the transforming step to fit a display screen of the host device.

25. The method of claim 21, wherein the memory of the programmable module contains executable code for processing the indication of a second compression format received during the step of receiving and for initiating the step of transforming.

26. The method of claim 25, further including a step of receiving an indication of a display screen size of the device and wherein the memory of the programmable module further contains executable code for scaling a video output produced during the transforming step to fit a display screen of the host device.

27. The method of claim 22, wherein the step of providing is performed by inserting the programmable module into one of a digital camera, a wireless terminal, a personal digital assistant, and a portable game console.

28. The method of claim 21, wherein the programmable module comprises at least one of a very long instruction word (VLIW) processor adapted to execute stored video and audio signal processing algorithms and a RISC processor core.

29. The method of claim 22, wherein the host device is a first host device, the method further including the steps of:

removing the programmable module from the first host device;

inserting the programmable module into a second host device, the second host device having a display and a microprocessor and being configured to derive and at least one of audibly reproduce audio and visually display images from a media file having a recognized compression format;

receiving, at the programmable module, an indication of a third compression format that is recognizable by the second host device; and

transforming data in the first compression format directly to the third compression format without first uncompressing the media file to thereby create a stream of at least one of audio and video which can be audibly reproduced and displayed by the second host device.

30. The method of claim 29, wherein the first compression format is a known compression format including annotations for facilitating transcoding in real time and the second compression format is one of MPEG-2 and MPEG-4.

31. A transcoding device connectable to an interface port of a host device having a display and a microprocessor, the host device being configured to derive and at least one of audibly reproduce audio and visually display images from a media file having a recognized compression format, the transcoding device comprising:

a memory for receiving and storing a media file in a first compression format not recognized by the host device; and

a processor adapted to receive a signal from the host device indicative of a second compression format that is recognizable by the host device and to transform data in the first compression format directly to the second compression format without first uncompressing the media file to thereby create a stream of at least one of audio and video which can be audibly reproduced and displayed by the host device.

32. The transcoding device of claim 31, wherein the memory and processor form a removable module, said memory containing a media file in the first compression format.

33. The transcoding device of claim 32, wherein the memory further contains code executable by the processor for processing the indication of the second compression format supplied by the host device.

34. The transcoding of claim 33, wherein the memory further contains code executable by the processor for scaling a video output, produced during transformation of the first compression format directly to the second compression, to fit a display screen of the host device.

35. The transcoding device of claim 31, wherein the processor comprises at least one of a very long instruction word (VLIW) processor adapted to execute stored video and audio signal processing algorithms and a RISC core.

36. A method of operating a device configured to derive and at least one of audibly reproduce audio and visually display images from a media file having a recognized compression format, the method comprising:

transferring a first media file to a memory disposed within the device, the first media file being in a first compression format not recognized by the device;

transforming data in the first compression format directly to the recognized compression format without first uncompressing the first media file to thereby create a stream of at least one of audio and video;

at least one of audibly reproducing the stream of audio and visually displaying the stream of video created during the transforming step.

37. The method of claim 36, further including a step of overwriting the first media file with a second media file, the second media file being in the first compression format.

38. The method of claim 37, wherein the step of overwriting comprises obtaining the second media file via an internet connection.

39. The method of claim 37, wherein the step of overwriting comprises transferring the second media file without first removing the memory from the device.

40. The method of claim 39, wherein the step of overwriting comprises transferring the second media file via a wireless transmission channel.

41. A method of operating a device having a display and a microprocessor and being configured to derive and at least one of audibly reproduce audio and visually display images from a media file having a recognized compression format, comprising the steps of:

providing a media file in a first compression format not recognized by the device;

within the device, transforming data in the first compression format directly to the second compression format without first uncompressing the media file to thereby create a stream of at least one of audio and video which can be audibly reproduced and visually displayed by the device.