Filter module for a video decoding system

• US 8,085,346 B2
• Filed: 11/23/2009
• Issued: 12/27/2011
• Est. Priority Date: 10/22/2002
• Status: Active Grant

• Current Assignee: Avago Technologies International Sales Pte Limited (Broadcom, Inc.)
• Original Assignee: Broadcom Corporation (Broadcom, Inc.)
• Inventors: Law, Patrick, Neuman, Darren, Baer, David
• Primary Examiner(s): KOSTAK, VICTOR R
• Application Number:
  US12/623,534
• Publication Number:
  US 20100066902A1
• Time in Patent Office: 764 Days
• Field of Search: 348554-558, 348/445, 348/705, 348/706, 348/458, 345 32- 34
• US Class Current: 348/458
• CPC Class Codes: H04N 21/25808 Management of client data terminal profiles in network data switching protocols H04L67/303
• CPC Class Codes: H04N 21/2662 Controlling the complexity of the video stream, e.g. by scaling the resolution or bitrate of the video stream based on the client capabilities
• CPC Class Codes: H04N 21/426 Internal components of the client ; Characteristics thereof H04N5/44 takes precedence
• CPC Class Codes: H04N 5/14 Picture signal circuitry for video frequency region cameras or camera modules comprising electronic image sensors, or control thereof H04N23/00
• CPC Class Codes: H04N 7/012 Conversion between an interlaced and a progressive signal for graphics images G09G2310/0229
• CPC Class Codes: H04N 9/641 Multi-purpose receivers, e.g. for auxiliary information H04N9/642 takes precedence

Abstract

Systems and methods are disclosed for filter modules in a video display system or network. One embodiment relates to a method for operating a filter module in a video display network comprising determining a picture type, display type and operation of the display network. The method further comprises determining, in real time, a filter configuration from a plurality of possible filter configurations based on the determined picture type, display type and operation.

Claims

1. A video display system, said system comprising:

a plurality of filters for filtering a corresponding plurality of video streams; and

a register direct memory access controller for simultaneously configuring the plurality of filters, wherein each of the corresponding plurality of filters are configured for a particular one of the plurality of video streams, wherein each of the plurality of filters are configured based at least in part on a determination of the picture type of the particular one of the plurality of video streams and the display type of the at least one display device; and

at least one output for simultaneously outputting each of the plurality of video streams filtered by the plurality of filters.

2. The system of claim 1, wherein the determination of the picture type of the plurality of video streams further comprises determining if the picture type is frame based video, field based video, or graphics.

3. The system of claim 1, wherein the determination of a display type of the at least one display device comprises determining if said at least one display type is progressive or interlaced.

4. The system of claim 1, further comprising:

an interpolator operable to interpolate selected ones of the plurality of video streams;

a decimator operable to decimate other selected ones of the plurality of video streams; and

wherein the register direct memory access controller configures each of the plurality of filters based at least in part on whether the interpolation or decimation operations is to be performed on the particular one of the plurality of video streams.

5. The system of claim 1, wherein the register direct memory access controller configures the plurality of filters in accordance with at least one register write instruction.

6. The system of claim 1, wherein the at least one display further comprises a plurality of simultaneous displays, wherein each of the plurality of simultaneous displays are associated with a particular one of the video streams, and wherein the register direct memory access controller configures the filter based at least in part on the display type of the one of the plurality of simultaneous displays that is associated with the particular video stream.

7. An apparatus for providing displayable video, said apparatus comprising:

a plurality of filters operable to filter a corresponding plurality of video streams; and

a register direct memory access controller operably connected to the plurality of filters to simultaneously configure the plurality of filters, wherein each of the corresponding plurality of filters are configured for a particular one of the plurality of video streams, wherein each of the plurality of filters are configured based at least in part on a determination of the picture type of the particular one of the plurality of video streams and the display type of the at least one display device; and

at least one output operable to simultaneously output each of the plurality of video streams filtered by the plurality of filters.

8. The apparatus of claim 7, wherein the determination of the picture type of the plurality of video streams further comprises determining if the picture type is frame based video, field based video, or graphics.

9. The apparatus of claim 7, wherein the determination of a display type of the at least one display device comprises determining if said at least one display type is progressive or interlaced.

10. The apparatus of claim 7, further comprising:

an interpolator operable to interpolate selected ones of the plurality of video streams;

a decimator operable to decimate other selected ones of the plurality of video streams; and

wherein the register direct memory access controller is operably connected to the interpolator and the decimator and configures each of the plurality of filters based at least in part on whether the interpolation or decimation operations is to be performed on the particular one of the plurality of video streams.

11. The apparatus of claim 7, wherein the register direct memory access controller configures the plurality of filters in accordance with at least one register write instruction.

12. The apparatus of claim 7, wherein the at least one display further comprises a plurality of simultaneous displays, wherein each of the plurality of simultaneous displays are associated with a particular one of the video streams, and wherein the register direct memory access controller configures the filter based at least in part on the display type of the one of the plurality of simultaneous displays that is associated with the particular video stream.