Patent Application
20080010662
The above and/or other aspects and advantages of embodiments of the present invention will become apparent and more readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:
Throughout the drawings, like reference numerals will be understood to refer to like parts, components and structures.
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout.
As noted above,
The receiving part 100 receives a broadcast signal from an outside source. Herein, the receiving part 100 can include a tuner and the like, for receiving the broadcast signal from the outside source. At this time, the tuner selects a frequency corresponding to a channel selected by a user and receives a broadcast signal having the selected frequency.
The broadcast signal according to embodiments of the present invention can include a broadcast video signal, a broadcast audio signal, and a data signal having content information, but is not limited thereto. Further, the broadcast signal can be encoded. For example, the broadcast signal can be encoded into an MPEG2 (Moving Picture Experts Group) transport stream.
The following description will use as an example, a data signal that can be transmitted based on an ACAP (Advanced Common Application Platform), which is a data broadcast standard of an ATSC (Advanced Television System Committee).
The signal processing part 200 processes and outputs a broadcast signal received from the receiving part 100 according to the control of the controller 300, described in greater detail below. Herein, the signal processing part 200 can comprise a demultiplexer 210, an audio processing part 220, and a video processing part 230. The audio processing part 220 can comprise a main audio processing part 221 and a content audio processing part 222.
The demultiplexer 210, according to the control of the controller 300, divides the broadcast signal received from the receiving part 100 into a main broadcast signal and the data signal including content information having various data. Further, the demultiplexer 210 divides the main broadcast signal into a main video broadcast signal and a main audio broadcast signal, and divides the data signal into a data video signal and a data audio signal. Herein, the demultiplexer 210 can comprise a section filter (not shown) to search and filter a packet having a corresponding type of a PMT (Program Map Table) of the transport stream, thereby dividing the main broadcast signal and the data signal partitioned by section into the main video and audio broadcast signals, and the data video and audio signals, respectively.
The audio processing part 220 processes the main audio broadcast signal and the data audio signal divided through the demultiplexer 210, and outputs them in an appropriate format according to the control of the controller 300, described in greater detail below. Herein, the audio processing part 220 includes the main audio processing part 221 and the content audio processing part 222.
That is, the main audio processing part 221 processes and outputs the main broadcast audio signal divided through the demultiplexer 210. In particular, the main audio processing part 221 decodes the divided main broadcast audio signal, and outputs the decoded main broadcast audio signal in a desired format.
The content audio processing part 222 processes and outputs the data audio signal divided through the demultiplexer 210. Particularly, the content audio processing part 222 decodes the divided data audio signal, and outputs the decoded data audio signal in a desired format.
The video processing part 230 processes the main broadcast video signal and the data video signal divided through the demultiplexer 210, and outputs them in a desired format according to the control of the controller 300.
The controller 300 controls the signal processing part 200 to process and output the broadcast signal received from the receiving part 100. In particular, the controller 300 controls the demultiplexer 210 to divide the broadcast signal received from the receiving part 100 into the main broadcast video and audio signals, and the data video and audio signals including content information having various data.
Further, the controller 300 controls the audio processing part 220 to process the main broadcast audio signal and the data audio signal divided through the demultiplexer 210 to output them in a desired format.
The controller 300 also controls the video processing part 230 to process the main broadcast video signal and the data video signal divided through the demultiplexer 210 to output them in a desired format.
Hereinafter, the broadcast receiving apparatus according to the second embodiment of the present invention will be described with reference to a digital TV by way of example. Here, the digital TV receives and processes a digital broadcast signal, and outputs the processed digital broadcast signal on a display part 400 such as an LCD (Liquid Crystal Display) panel or a PDP (Plasma Display Panel).
As illustrated, in the second embodiment of the present invention, the broadcast receiving apparatus has substantially the same configuration and functions of each part thereof as that in the first embodiment of
The video processing part 230 processes a video signal divided through the multiplexer 210, and outputs the processed video signal in a desired format depending on the control of the controller 300, described in greater detail below. Herein, the video processing part 230 further comprises a main video processing part 231 and a content video processing part 232.
The main video processing part 231 processes a broadcast video signal divided through the demultiplexer 210 and provides the processed broadcast video signal for display on the display part 400. Herein, the main video processing part 231 can perform various additional functions corresponding to a format of the received broadcast video signal. For example, the additional functions can include an A/D converting function to convert received video signals in various formats into digital video signal in a specific format, a digital decoding function, a scaling function to adjust a vertical frequency, resolution, an aspect ratio, and so forth, of the received digital video and/or analog signal according to an output standard of the display part 400, and a predetermined format converting function.
The content video processing part 232 processes the data video signal divided through the demultiplexer 210, and provides the processed data video signal for display on the display part 400. In particular, the content video processing part 232 processes the data video signal according to location information included in the data video signal, and provides the processed data video signal for display on the display part 400.
For example, the data video signal can be displayed as a partial screen, such as an OSD and/or a PIP, on the display part 400.
The controller 300 controls the signal processing part 200 to process the broadcast signal received from the receiving part 100. Particularly, the controller 300 controls the signal processing part 200 to process and output the data audio signal according to a user's selection.
The controller 300 controls the demultiplexer 210 to divide the broadcast signal received from the receiving part 100 into the main broadcast video and audio signals, and the data video and audio signals, respectively. Further, the controller 300 controls the video processing part 220 and the audio processing part 230 to decode main broadcast video and audio signals and data video and audio signals, respectively, and to output them each in a desired format.
At this time, in the case where the broadcast signal including content information is received, if a user selects a function to output a data audio signal corresponding to the content information, the controller 300 controls the content audio processing part 222 to process the data audio signal, and controls a first speaker 520 to output the processed data audio signal.
Here, if a user selects a function to adjust the volume of the data audio signal, the controller 300 controls the content audio processing part 222 to output the data audio signal having its volume adjusted depending on the user selection to the first speaker 520. Herein, the broadcast receiving apparatus can display a UI screen having a volume adjusting screen on the display part 400 or include a key, button, or the like, mounted thereon through which the user can adjust the volume of the data audio signal.
If the user selects a function to mute the data audio signal, the controller 300 controls the content audio processing part 222 to prevent output of the data audio signal to the first speaker 520.
However, if the user selects a function to output the data video signal of the content information, the controller 300 controls the content video processing part 232 to process the data video signal according to location information included in the data video signal so that the display part 400 can display it at a specific area thereon.
For example, if content information includes a service such as a two-way electronic commerce connected to a broadcast program received through a channel, the data video signal corresponding to the content information can include price information and so forth, related to specific merchandise used in the broadcast program. Here, when the specific merchandise used in the broadcast program is displayed at a specific area on the display part 400, the data video signal related to the specific merchandise can be displayed as an OSD and/or a PIP according to the specific area corresponding to the specific merchandise.
If the content information includes an independent service such as a video game, karaoke, and the like, when the user selects a function to mute a main broadcast audio signal, the controller 300 controls the main audio processing part 221 to prevent the output of the main broadcast audio signal from a second speaker 510.
As described above, the broadcast receiving apparatus according to the second embodiment of the present invention has been described with reference to the second speaker 510 and the first speaker 520 to output the main audio signal and the data audio signal, respectively, by way of example. However, the present invention is not limited to this embodiment. Further, embodiments of the present invention are not limited to the number of speakers and locations of speakers as shown in
First, if a user selects a channel, the broadcast receiving apparatus receives a broadcast signal corresponding to the selected channel at step (S1). The demultiplexer 210 then divides the broadcast signal into a main broadcast signal and a data signal at step (S3). In particular, the demultiplexer 210 divides an audio signal received in a transport stream format into a main broadcast audio signal and a data audio signal according to the control of the controller 300.
At this time, if the user selects a function to output content information of the data audio signal at step (S7), the controller 300 controls the content audio processing part 222 to process the data audio signal to output it through a speaker (not shown) at step (S9).
First, if a user selects a channel, the broadcast receiving apparatus receives a broadcast signal corresponding to the selected channel at step (S101). The demultiplexer 210 then divides the broadcast signal into a main broadcast signal and a data signal at step (S103). In particular, the demultiplexer 210 divides a video signal and an audio signal received in a transport stream format into main broadcast video and audio signals and data video and audio signals through a section filtering operation according to the control of the controller 300.
The main broadcast video signal and the main broadcast audio signal, which are divided in the operation (S103), are processed in the main video processing part 231 and the main audio processing part 221, respectively, according to the control of the controller 300. The processed main broadcast video and audio signals are then displayed on the display part 400 and output to the second speaker 510, respectively, at step (S105).
At this time, if the user selects a function to output content information at step (S107), the controller 300 controls the content video processing part 232 and the content audio processing part 222 to process the data video signal and the data audio signal, respectively. The processed data video and audio signals are then displayed on the display part 400 and output to the first speaker 520, respectively at step (S109).
If the user further inputs a user instruction to mute the main broadcast audio signal at step (S111), the controller 300 controls the main audio processing part 221 to prevent the output of the main broadcast audio signal to the second speaker 510 at step (S113).
Regardless of selecting the function to mute the main broadcast audio signal at the operation (S111), if the user selects a function to mute the data audio signal at step (S115), the controller 300 controls the content audio part 222 to prevent the output of the data audio signal through the first speaker 520 at step (S117).
The content information according to embodiments of the present invention, which is transmitted based on an ACAP (Advanced Common Application Platform), i.e. a ground wave data broadcast standard, has been described by way of example. However, embodiments of the present invention are not limited to these embodiments. Alternatively, in the case of data broadcast to employ a DSM-CC (Digital Storage Media Command and Control) system, the content information can be transmitted based on any type of platform, such as an OCAP (Open Cable Application Platform) for a cable broadcast standard and a MHP (Multimedia Home Platform) for a satellite broadcast standard.
Further, the broadcast receiving apparatus according to embodiments of the present invention has been described with reference to a digital TV by way of example, but is not limited thereto. Alternatively, the broadcast receiving apparatus can comprise any apparatus that is substantially capable of receiving and outputting a broadcast signal such as a set-top box, a computer, and the like.
As apparent from the above description, according to embodiments of the present invention, a broadcast receiving apparatus and a control method thereof are provided, which can output a data audio signal corresponding to content information to provide convenience and pleasure to a user when using the new integrated multi-media contents.
A broadcast receiving apparatus and the control method thereof are further provided which can suitably process and output content information provided from a broadcasting industry so that the user can use various kinds of contents.
A broadcast receiving apparatus and the control method thereof are still further provided which can separately control a broadcast audio signal and a data audio signal to independently use content information.
Although a number of exemplary embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes may be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
| Number | Date | Country | Kind |
|---|---|---|---|
| 10-2006-0063076 | Jul 2006 | KR | national |
