Method and apparatus for filtering SDTV channels of digital video broadcasting
AssigneeGenesys Logic, Inc.
InventorsChi-Wei Hsiao, Jin-Min Lin, Wen-Ming Huang
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Abstract
A method for filtering the SDTV channels in a DVB is provided, including the following steps: using the video frequency ID and center frequency of the SDTV channel of the user's choice to look up a table to obtain at least a remaining video frequency ID different from the video frequency ID of the SDTV channel, while the remaining video frequency ID having the same center frequency as the SDTV channel; configuring a plurality of registers in the controller; and the controller discarding a plurality of DVB packets according to the registers. The controller can be either a PCI_EXPRESS controller or a USB controller.
Claims12
A method for filtering digital video broadcast SDTV channels, comprising the steps of:
- using a selected SDTV channel of a user's choice to look up a table to obtain a result;
- using said result to configure a plurality of registers in a controller;
- and
- said controller discarding a plurality of DVB packets according to said registers.
A controller for filtering digital video broadcast SDTV channel, comprising:
- a media access control (MAC) circuit having a first register and a second register for receiving a plurality of packets;
- and
- a USB physical layer circuit coupling to said MAC for transmitting USB electrical signals;
- wherein said MAC selectively discards said packets in accordance with said first and said second registers.
Dependencies are inferred from the claim text.