Filter module for a video decoding system

• US 7,636,125 B2
• Filed: 03/11/2003
• Issued: 12/22/2009
• Est. Priority Date: 10/22/2002
• Status: Expired due to Fees

• Current Assignee: Avago Technologies General IP 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:
  US10/386,312
• Publication Number:
  US 20040075768A1
• Time in Patent Office: 2,478 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 method of operating a filter module a in a video display system, said method comprising:

determining a picture type of a plurality of video streams;

determining a display type of at least one display device; and

determining in real time, a plurality of simultaneous filter configurations, wherein each of the corresponding plurality of filter configurations are for a particular one of the plurality of video streams, wherein each of the plurality of filter configurations are based at least in part on the picture type of the particular one of the plurality of video streams and the at least one display device; and

simultaneously outputting each of the plurality of video streams filtered by the plurality of filter configurations.

2. The method of claim 1, wherein determining 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 method of claim 1, wherein determining 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 method of claim 1, further comprising:

determining whether an interpolation or a decimation, operation are to be performed on each of the plurality of video streams; and

wherein determining in real time, a plurality of filter configurations is also 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 method of claim 1, wherein each of the plurality of filter configurations are determined in accordance with at least one register write instruction.

6. The method 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 plurality of filter configurations are also determined 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.