Method of processing transmit streams independently to display multiple broadcasts at the same time and a receiver for implementing the same

摘要

Disclosed are devices for receiving broadcast signal. More specifically, one of the devices includes at least two tuners (102, 103) configured to synchronize at least two transmit stream independently, at least two transmit stream processors (104, 105) each configured to convert the at least one transmit stream into a plurality of audio signals, a plurality of displayable video signals, and a plurality of displayable data signals, a controller (100) configured to provide switching control signal and display control signal based on channel selected by a user, a switching unit (135) configured to output a data broadcast associated with a first broadcast channel and the video and the audio associated with a second broadcast channel, a display module (138) configured to display a video of the first broadcast channel in a first display area and a data of the second broadcast channel in a second display area, and at least one speaker configured to audio output of at least two different broadcast channels. Method for using the device is also disclosed.

主权项

1. A device for processing transmit streams independently to display a video and a displayable data broadcast at the same time, comprising:
a plurality of tuners configured to tune a plurality of transmit streams independently and to output the plurality of tuned transmit streams: a plurality of signal output units, comprising:
a plurality of demultiplexers configured to demultiplex each of the plurality of tuned transmit streams into a plurality of respective demultiplexed streams including at least one audio stream, at least one video stream, and at least one displayable data stream,a plurality of decoders configured to decode the demultiplexed audio, video, and displayable data streams, anda plurality of transmit stream processors configured to convert the decoded audio, video, and displayable data streams into at least one processed audio stream, at least one processed video stream, and at least one processed displayable data stream; a switching unit including an audio switch, a video switch, and a data switch, the switching unit selectively switch the processed audio, video and displayable data stream as an output audio signal, an output video signal and an output displayable data to a display; a user interface configured to receive a user request signal; a controller configured to provide a switching control and a display control based on the user request signal; wherein the display configured to display a first data associated with a first broadcast channel from a first tuned transmit stream in a first portion of the display, and to display a first video associated with the first broadcast channel from the first tuned transmit stream in a second portion of the display, at the same time; and at least one speaker configured to output audio associated with the first broadcast channel, wherein the data switch is switched on by the controller when the user interface receives the user request signal, wherein the data switch is configured to selectively switch the processed displayable data stream associated with the first broadcast channel, wherein the audio switch and the video switch are configured to selectively switch the respective processed audio stream and processed video stream associated with a second broadcast channel, wherein, in response to a user request for the second broadcast channel while displaying the first video associated with the first broadcast channel and the displayable data, the display is further configured to display the first data associated with the first broadcast channel in the first portion of the display, and at the same time to display a second video associated with the second broadcast channel from a second tuned transmit stream in the second portion of the display, wherein the at least one speaker is configured to output audio associated with the second broadcast channel in response to the user request for the second broadcast channel, and wherein the controller is further configured to control a generation of an on-screen display (OSD) based on the channel selection by the user.