KR100716951B1 - Apparatus and method for controlling software upgrade on broadcasting channel - Google Patents

Abstract

The present invention relates to a broadcast channel software upgrade apparatus and method for television, and more particularly, to a broadcast channel software upgrade control apparatus and method for efficiently upgrading regardless of a channel for viewing software of a multiplex channel of digital broadcasting. It is about.

According to the present invention, by adding a tuner for upgrading the software of the multiplex channel, and upgrading the software that changes in all the multiplex channels irrespective of the channel being watched, the channel is never selected and viewed or the MUX channel software Even if the channel is changed during the upgrade, the upgrade is executed without failure, and the new version of the software can be upgraded in a short time.

Description

Apparatus and method for controlling software upgrade on broadcasting channel}

1 is a block diagram of a conventional digital broadcast receiver.

2 is a block diagram of a digital broadcast reception apparatus to which a broadcast channel software upgrade control apparatus according to the present invention is applied.

3 is a flowchart of a broadcast channel software upgrade control method according to the present invention.

The present invention relates to a broadcast channel software upgrade processing apparatus and method for a television, and in particular, a broadcast channel software upgrade control apparatus for efficiently upgrading regardless of a change in a channel for viewing software of a multiplex channel of a digital broadcast; It is about a method.

As shown in FIG. 1, the conventional digital broadcasting receiver includes an antenna 101, a tuner 102, a demultiplexer 103, a video decoder 104, an audio decoder 105, a controller 106, It consists of a memory 107 and a key input unit 108.                         

When the user selects a channel to watch after the user turns on the TV by using the key input of the key input unit 108, that is, the remote controller (also called a remote controller) as an example, the tuner 102 in the control unit 106 is selected. After controlling to select and tune only the broadcast signal of the channel input by the user among the broadcast signals received through the antenna 101, the broadcast signal of the tuned channel is demodulated and output. Then, the demultiplexer 103 separates the demodulated broadcast signal into individual bit strings of video data, audio data and additional information, and the separated video data and audio data are separated by the video decoder 104 and the audio decoder 105. After each decoding, it is output through the cathode ray tube and the speaker. The additional information is applied to the controller 106 and stored in the channel information area of the memory 107.

However, in the conventional technology of using one tuner, only a single frequency band selected by a user can be processed, and thus, it is impossible to upgrade software for changing channels other than the frequency band of the tuned channel.

Therefore, according to the related art, when the software of a specific channel is changed, the user may not tune in and watch the channel at all, or if the channel is changed while upgrading the software that is changed by tuning the channel, the software may be upgraded normally. There was a problem that could not be.

The technical problem to be solved by the present invention is to solve the above problems by adding a tuner for upgrading the software of the multiplex channel, to upgrade the software that is changed in all the multiplex channel irrespective of the channel being viewed. A broadcast channel software upgrade control apparatus and method are provided.

In order to accomplish the above technical problem, the apparatus for upgrading broadcast channel software according to the present invention is a software upgrade apparatus for a broadcast channel, which includes broadcasting in a frequency band corresponding to a channel tuned by a first control signal among broadcast signals received from an antenna. A tuner 1 for selecting a signal and demodulating the broadcast signal of the selected frequency band and outputting the demodulated signal to a digital signal processor; and a broadcast signal of a frequency band corresponding to a channel tuned by a second control signal among the broadcast signals received from the antenna; A tuner 2 for demodulating and outputting a broadcast signal of the selected frequency band, a data extractor for extracting channel software from the demodulated broadcast signal output from the tuner 2, a memory for storing the channel software, and a user Channel selected by Generating a first control signal for tuning a channel corresponding to the second control signal, generating a second control signal for searching for a multiplexable channel which can be sequentially upgraded according to a predetermined condition, and extracting the channel software extracted from the data extraction unit. And a controller for updating the memory.

In accordance with another aspect of the present invention, a broadcast channel software upgrade control method according to the present invention includes the steps of: (a) determining whether an initial setting condition for executing a channel software upgrade mode is met; b) searching for a sequentially upgradeable multiplex channel when the determination result of the step (a) corresponds to the initial setting condition; and (c) storing the software of the multiplex channel searched in the step (b). And updating the data.

In general, digital satellite broadcasting may transmit a single program on one physical channel, but may also transmit a plurality of programs on one physical channel. Each physical channel is generally referred to as a multiplex (MUX) channel. The transport stream of each MUX channel includes data such as a program and program specific information (PSI), a service information (SI) for selecting a program in the transport stream, and event service information.

Here, the PSI, SI, and event service information are referred to as software of the MUX channel.

PSI includes information such as CAT (Conditional Access Table), PAT (Program Association Table), PMT (Program Map Table), NIT (Network Information Table), and SI includes BU (Bouquet Association Table) and EIT (Event Information). Table) is included.

The software of the MUX channel is stored in the memory at the time of channel selection and then program selection and data processing are performed using the software stored in the memory. However, the software of the MUX channel must be upgraded whenever it is changed to data that can be changed.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

As shown in FIG. 2, the apparatus for upgrading broadcast channel software according to the present invention includes an antenna 201, tuner 1 202, a demultiplexer 203, a video decoder 204, an audio decoder 205, and a controller 206. ), Tuner 2 (207), data extracting unit 208, memory 209 and key input unit 210 are provided.

Tuner 1 202 tunes and demodulates the signal of the channel selected by the user, and tuner 2 207 performs channel tuning and demodulation for upgrading the software of the MUX channel.

That is, when the user selects a channel to watch after the user turns on the power of the TV using the key button of the key input unit 210, the control unit 206 generates the first control signal and the tuner generates the tuner. 1 (202) is controlled to select and tune only the broadcast signal of the frequency band of the channel input by the user among the broadcast signals received through the antenna 201, and then demodulate and output the broadcast signal of the tuned channel. The demultiplexer 203 then separates the demodulated broadcast signal into separate bit strings of video data, audio data and additional information, and the separated video data and audio data are separated by the video decoder 204 and the audio decoder 205. After each decoding, it is output through the cathode ray tube and the speaker. The additional information is applied to the controller 206 and stored in the channel information area of the memory 209.

In addition, the controller 206 controls the tuner 2 297 and the peripheral components to upgrade the channel software, which will be described with reference to the flowchart of FIG. 3.

First, while the power is supplied to the TV, the controller 206 may be programmed to search for a continuously upgradeable MUX channel to upgrade the changed channel software, but in this case, the controller 206 is heavily loaded. In addition to the power consumption, there is a drawback that the power consumption is increased. Therefore, after setting the initial setting condition for executing the channel software upgrade mode, it is effective to program the upgraded channel software by searching for the upgradeable MUX channel only when the initial setting condition is met.

Accordingly, in an exemplary embodiment of the present invention, for convenience of description, only the case where the initial setting condition is changed from the power off mode to the power on mode will be described.

The controller 206 determines whether the execution mode is switched from the power off mode to the power on mode. That is, the controller 206 determines whether the power on key of the key input unit 210 is input in the standby mode by the user's key selection (step 301).

When the determination result of step 301 is changed from the power off mode to the power on mode, the control unit 206 generates a second control signal for searching for the MUX channel upgradeable to tuner 2 (207). Accordingly, the tuning frequency of tuner 2 207 is controlled by the second control signal to search for the MUX channel having the lowest frequency band (step 302). Then, if the software of the searched MUX channel is not stored in the memory 209 or has been changed from the already stored software, the software is updated to upgrade to the new channel software (step 303).

After upgrading the software of the searched MUX channel, it is determined whether the current searched MUX channel corresponds to the last MUX channel, that is, the MUX channel having the highest frequency band (step 304). End the software upgrade of the MUX channel, otherwise search for the next higher frequency MUX channel and feed back to step 303 to repeat the above steps.

Through this process, all upgradeable MUX channels can be searched to quickly upgrade the changed channel software.

According to an embodiment of the present invention, the control unit upgrades the software by searching for the upgradeable MUX channel only when the power-off mode is converted to the power-on mode. However, even when the condition for upgrading the software of the MUX channel is changed and applied. It is a matter of course that they fall within the technical scope of the invention.

As described above, according to the present invention, by adding a tuner for upgrading the software of the multiplex channel and upgrading the software that is changed in all the multiplex channels regardless of the channel being watched, the channel is not selected and viewed at all. If you change the channel during the MUX channel software upgrade, the upgrade can be executed without failure, as well as the ability to upgrade a new version of the software in a short time.

Claims (4)

delete In the software upgrade apparatus of a broadcast channel, A tuner 1 for selecting a broadcast signal of a frequency band corresponding to a channel tuned by a first control signal from a broadcast signal received from an antenna, demodulating the broadcast signal of the selected frequency band, and outputting the demodulated signal to a digital signal processing processor; A tuner 2 for selecting a broadcast signal of a frequency band corresponding to a channel tuned by a second control signal among the broadcast signals received from the antenna, and demodulating and outputting a broadcast signal of the selected frequency band; A data extraction unit for extracting channel software from the demodulated broadcast signal output from the tuner 2; A memory for storing the channel software; And Generating a first control signal for tuning a channel corresponding to a user's channel selection command, and a second control signal for searching for a multiplexable channel which can be sequentially upgraded when the mode is switched from a power-off mode to a power-on mode. And a control unit for generating and updating the channel software extracted by the data extracting unit to the memory. delete In the broadcast channel software upgrade method, (a) determining whether to switch from a power off mode to a power on mode; (b) searching for a sequentially upgradeable multiplex channel when the determination result of the step (a) is changed from the power off mode to the power on mode; And and (c) updating software of the multiplex channel searched in step (b) to a memory.

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