Multi-screen display apparatus and method for digital broadcast receiver

摘要

A multiplexed display apparatus and method for a digital broadcast receiver are provided. A multi-screen display apparatus for a digital broadcast receiver of the present invention includes a broadcast reception unit for receiving broadcast data of a primary service channel and at least one secondary service channel; a decoding unit comprising a video decoder for decoding video data of all types of video frame of the primary service channel and a predetermined type of video frame of the secondary service channel and an audio decoder for decoding audio data of a predetermined service channel, by time frame; a multiplexed screen processing unit for multiplexing the video data of the primary service channel and the at least one secondary service channel output by the decoding unit; a display unit for displaying the multiplexed video data in the form of multiplexed screen image; and a speaker unit for outputting the decoded audio data in the form of an audible sound wave.

主权项

1. A multi-screen display apparatus for a digital broadcast receiver, comprising:
a broadcast reception unit for receiving broadcast data of a primary and at least one secondary service channels; a decoding unit for output of decoded video and audio data, the decoding unit comprising a video decoder for decoding video data of all types of video frames of the primary service channel and only at least one predetermined type of video frame of the at least one secondary service channel and an audio decoder for decoding audio data of a predetermined service channel, by time frame, wherein the at least one predetermined type of video frame is selected from the group of: i) only I-frames and ii) only I- and P-frames; a multiplexing screen processing unit for multiplexing the decoded video data of the primary service channel and the at least one secondary service channels output by the decoding unit; a display unit for displaying the multiplexed decoded video data in the form of a multiplexed screen image; and a speaker unit for outputting the decoded audio data in the form of audible sound wave; wherein the display unit displays a frame selection option for the at least one secondary service channel enabling user selection of a first frame option in which only I-frames are displayed, a second frame option in which only I- and P-frames are displayed, and an option enabling user selection of a specific temporally positioned frame in a frames per second sequence to be displayed.