KR20090083519A - Device and method for software upgrade - Google Patents

Abstract

A device and a method for upgrading software are provided to shorten a search time and a download time of software to be upgraded, thereby efficiently upgrading software. A broadcast receiver receives a broadcast signal inputted from the outside during a stand by state(S110). A controller determines whether OAD(on air download) data exist in the broadcast signal(S130). An OAD processing unit extracts only specific data necessary for upgrading from the entire OAD data(S140). A storage unit stores the extracted data(S150).

Description

Device and method for software upgrade

The present invention relates to a digital broadcast receiver, and more particularly, to a software upgrade apparatus and an upgrade method capable of upgrading software efficiently.

The digital broadcast receiver stores software for controlling the operation of the digital broadcast receiver in a flash memory included therein and controls the overall operation of the digital broadcast receiver by the software.

Software of such a digital broadcast receiver has a method of upgrading by a data stream transmitted through a broadcast wave.

That is, if you want to upgrade the software stored in the flash memory to improve the performance of any digital television, the manufacturer of the digital television generates the upgrade software and transmits it to the digital television through the broadcast wave.

The software upgrade process implemented to date consists of downloading the software automatically when a new software is found and a method of actively searching for the software.

That is, when there is software to be upgraded in the currently received broadcast signal, there is a method of forcibly upgrading the corresponding software and a method of selectively upgrading the corresponding software according to user selection after notifying the user of the existence of the software.

As described above, a method of upgrading the software of the digital broadcasting receiver by extracting upgraded software included in the broadcast signal is called on air download (OAD).

However, the first method has a problem causing user dissatisfaction because the software is upgraded regardless of the user's intention, and the second method is that the user may turn on the television later without turning on the television for a long time. If the software does not exist in the broadcast signal received at this time, there is a problem in that there is no way to upgrade the software.

In addition, in the conventional method as described above, when the software is upgraded, the software is searched for, but the search time is long, and there is a disadvantage in that the user is bored because the downloaded software is downloaded to upgrade the software.

The present invention has been made to solve the above problems, the object of the present invention is to reduce the search time and download time of the software to be upgraded to more efficiently perform the software upgrade.

Another goal is to periodically detect the presence of software even when the TV set is off for a long time so that the software can be downloaded for upgrade.

In addition, another purpose is to selectively store only necessary data among the software to be upgraded so that the capacity of the storage medium can be efficiently used.

Software upgrade apparatus according to the present invention includes a broadcast receiving unit for receiving a broadcast signal input from the outside; An OAD processing unit for extracting corresponding OAD data from the broadcast signal received through the broadcast receiving unit; A storage unit for storing the OAD data extracted through the OAD processing unit; And a controller for checking whether there is OAD data according to the set from the received broadcast signal in a standby state, and outputting a control signal so that the detected data is stored in the storage unit according to the presence or absence of the OAD data. It is configured by.

In addition, the upgrade method of the software upgrade apparatus according to the present invention comprises the steps of: receiving a broadcast signal input from the outside in a standby state (Standby); Checking the presence or absence of OAD data from the received broadcast signal; Extracting OAD data from the received broadcast signal according to the presence or absence of the OAD data; And storing the extracted OAD data.

The apparatus and method for upgrading software according to the present invention automatically detects and stores the presence of software included in a broadcast signal even in a standby state, thereby reducing a time for upgrading the software later and a period of loading software on the broadcast signal. If there is a problem in storing the entire broadcast signal, only the necessary data can be detected and stored, thereby effectively reducing the storage capacity of the storage medium.

Hereinafter, specific embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the spirit of the present invention is not limited to the embodiments presented, and other embodiments included within the scope of other inventive inventions or the scope of the present invention can be easily made by adding, changing, or deleting other elements. I can suggest.

1 is a view showing the configuration of a software upgrade apparatus according to the present invention, Figure 2 is a view for explaining a message displayed in accordance with the present invention, Figure 3 is a step-by-step software download method in the software upgrade apparatus according to the present invention 4 is a flowchart illustrating a software upgrade method step by step in the software upgrade apparatus according to the present invention.

The upgrade system of the OAD software according to the present invention includes a manufacturer 10, a broadcasting station 20, and an image display device 30 as shown in FIG.

First, the manufacturer 10 encodes the upgraded software applied to the image display device to the broadcasting station 20 by encoding the upgraded software to the object carousel protocol (OC protocol).

The OC encoded stream of the OAD software thus provided is multiplexed and transmitted with an A / V stream of a broadcasting station and a data stream for data broadcasting and program index.

Then, the stream transmitted from the broadcasting station 20 is received by the broadcast receiver 30 of the user through a repeater, and the upgrade software included in the broadcast signal is extracted to perform the software upgrade.

That is, each of the video display device manufacturers 10 separately defines the standard and the upgrade method of the software of the products they manufacture and encodes it and provides it to the broadcasting station 20, and the broadcasting station 20 provides the A / V. The encoded OAD software is transmitted to the broadcast receiver 30 of the user as a stream.

A detailed configuration of the image display device will be described below.

First, the software upgrade apparatus according to the present invention, as shown in Figure 2, the broadcast receiving unit 100 for extracting and outputting the transport stream of a predetermined channel by selecting a desired channel from the broadcast stream transmitted through the transport channel (100) ), An image processor 110 for signal processing to display video data of the output transport stream, a display unit 120 for displaying the signal processed video data, and a key for receiving a request command from a user. An input unit 130, an OAD processing unit 140 which determines whether OAD data exists from the transport stream, extracts the OAD data, and a storage unit which stores the OAD data extracted by the OAD processing unit 140 ( 150 and check the presence of the OAD data by controlling the operation of the broadcast receiving unit 100 in the standby state. Accordingly, when the OAD data is detected, the controller 160 outputs a control signal so that the detected OAD data is stored in the storage unit 150, and when a power-on command is input from the outside, the OAD previously stored in the standby state. And an on-screen display processing unit 170 for displaying and displaying a message indicating whether data exists.

The broadcast receiver 100 includes a tuner 102, a demodulator 104, and a demultiplexer 106.

The operation of the software upgrade apparatus according to the present invention configured as described above is as follows.

In general, broadcast signals are transmitted in the form of a packetized transport stream by time division multiplexing a video signal, an audio signal, and additional data.

The broadcast receiver 100 receives a broadcast signal transmitted from the outside through an antenna (not shown), and tunes a broadcast signal having a frequency band corresponding thereto according to a tuning control signal of the controller 160 to be described later ( 102, a demodulator 104 for outputting a tuned broadcast signal of a specific channel in a transport stream form through a VSB (Vestigial Sideband) demodulation process and an error correction process, and the outputted transport stream with a video signal. And a demultiplexer 106 which is separated into various additional data defined by an audio signal and PSIP (Program and System Information Protocol) information and outputs it in the form of a bit stream.

The video data separated by the demultiplexer 106 is processed by the image processor 110 and displayed on the display 120.

In this case, the image processing unit 110 includes an MPEG-2 decoder and a scaler for converting video data to match the vertical frequency, resolution, aspect ratio, etc., of the output standard of the display 120.

The display unit 120 may be applied to various types of display modules, such as digital light processing (DLP), liquid crystal display (LCD), plasma display panel (PDP), and the like.

The audio signal is processed by an audio processor (not shown) and output to a speaker (not shown). The audio processor may include an AC-3 decoder.

In addition, a state in which a system operates in a power off is generally referred to as a standby state. The standby state is classified into two types.

That is, in the standby state, there is a cold standby and a warm standby. In the cold standby state, power is supplied only to the microcomputer for power control, and in the warm standby state, power is supplied to the CPU except the microcomputer. Is supplied.

In other words, the warm standby state is the same as the scheduled recording, and in the standby state, the warm standby state may receive and process a broadcast signal transmitted from the outside and store the same.

Although the present invention can be implemented in a general normal state, the operation in the standby state will be described for more efficient software upgrade.

Accordingly, the broadcast receiver 100 operates in the standby state to receive a broadcast signal input from the outside.

The OAD processor 140 determines whether OAD data exists from the received broadcast signal, and extracts the corresponding OAD data accordingly.

That is, the OAD processor 140 checks whether the broadcast signal includes a software code to be upgraded.

Here, the software code included in the broadcast signal includes a header part including basic index information about the software code and a payload part including the actual software code in the form of a packet.

The header unit records the manufacturer name and model name of the receiver so as to confirm the receiver that has performed the software upgrade, a receiver confirmation code, version information indicating the software version, payload length portion for recording the length of the payload, and current software. It consists of a version guide for recording guide information and the like for version information, upgrade period information indicating the upgrade period of the software.

Therefore, when the broadcast signal is received from the broadcast receiving unit 100, the OAD processing unit 140 analyzes the broadcast signal to determine whether a software code is inserted, and if the software code is inserted, the corresponding software code is a corresponding receiver. Determine if the downloadable code matches your model.

In addition, the version information of the header is used to determine whether a newer version is stored than previously stored software.

If the software is a newer version than the pre-stored software, the received software is determined to be upgraded software, and the corresponding software data is stored in the storage unit 150 according to a control signal of the controller 160.

At this time, the control unit 160 may store the entire software data in the storage unit 150, but extracts only the specific data necessary for upgrading among the software data in order to reduce the storage capacity, and accordingly only the extracted specific data Control to be stored in the storage unit 150.

That is, in general, software to be downloaded is converted into an MPEG standard and sent in a stream. When storing the entire transmitted stream in the storage unit 150, a large amount of capacity is used. Only the bay is extracted and stored in the storage unit 150.

For example, when there is a download software called '* .epk', it is encoded to meet the MPEG standard in order to send it to a broadcast signal. , Downloaded Data Block (DDB) information, which is included in the broadcast signal and transmitted. In this case, only the information is extracted and selectively stored in the storage unit 150.

In other words, several DDBs form a module, several modules form a group, and several groups form a super group. The DDB includes information such as data DATA, image, text, and the like, and the module provides a descriptor.

In the case of the group, the group information is transmitted through the DII, and the super group transmits the information of the super group through the DSI.

In other words, the image information to be downloaded first is made into DDB, the overall information about the DDB is made into DII, and the information gathered by the DII is stored in the DSI.

Accordingly, the data required for the actual upgrade among all the received software data are Download Server Initiate Message (DSI), Download Info Indication Message (DDI), and Download Data Block (DDB) information. Accordingly, only the information is selectively extracted and stored. Stored in the unit 150.

The controller 160 controls the presence of the software to be checked in the standby state. If the presence of the software is checked, the controller 160 detects the corresponding software and stores the software in the storage 150.

In addition, when a power-on command is input later, the controller 160 determines whether or not the pre-stored software exists in the storage unit 150 in the standby state, and if so, informs the user of the pre-stored software. Decide if you want to perform the upgrade.

The OSD processor 170 processes the message for notifying the existence of the pre-stored software, and the OSD processed message is signal-processed through the image processor 110 and displayed on the display 120.

That is, as shown in Figure 3, the message (200) is' a new version of the software exists. Do you want to upgrade? ' It can be displayed in the form.

In addition, the controller 160 outputs a control signal to perform a corresponding operation according to the execution key 210 or a later upgrade command key 220 input from the user on the displayed message 200.

That is, when the execution key 210 is input from the user, the controller 160 performs a software upgrade based on data previously stored in the storage 150, and when the upgrade command key 220 is input later, Do not perform the software upgrade.

In addition, when the software upgrade is not performed, the message is displayed periodically so that the user can recognize the existence of the software according to the new version.

Accordingly, by automatically detecting and storing the presence of the software included in the broadcast signal even in the standby state, it is possible to reduce the time for upgrading the software later and the period of loading the software on the broadcast signal. If it is difficult to store the data by detecting and storing only necessary data, the storage capacity of the storage medium can be efficiently reduced.

The software download method in the software upgrade apparatus according to the present invention configured as described above first enters the standby state as shown in FIG. 4 (S100).

Subsequently, a broadcast signal input from the outside in the standby state is received (S110).

In operation S120, it is checked whether OAD data exists from the received broadcast signal.

Subsequently, it is determined whether OAD data exists in the broadcast signal as a result of the check (S130).

If the OAD data is present in the broadcast signal (S130), only specific data necessary for upgrading is extracted from the entire OAD data (S140). That is, only the download server initiate message (DSI), download info indication message (DDI), and download data block (DDB) information are selectively extracted.

Subsequently, the extracted data is stored (S150).

In addition, in the upgrade method of the software stored as described above, as shown in FIG.

Subsequently, when the power-on command is input (S200), it is determined whether or not newly stored software exists in the standby state (S210).

If the newly stored software exists, the determination result (S210) displays a message indicating the existence of the software (S220).

Subsequently, it is determined whether a software upgrade command is input from the outside (S230).

When the software upgrade command is input, the determination result (S230) performs a software upgrade on the basis of previously stored data in the standby state (S240).

In addition, if the newly stored software does not exist or if the software upgrade command is not input, the received image is displayed (S250).

As described above, the apparatus and method for upgrading a software according to the present invention automatically detects and stores the presence of software included in a broadcast signal even in a standby state, so that a time for later upgrading of the software and a period of loading software into the broadcast signal are provided. In this case, the storage capacity of the storage medium can be efficiently reduced by detecting and storing only necessary data when there is a problem in storing the entire broadcast signal.

That is, since the time for actually downloading the software is made at a time when the user does not watch TV, it is not necessary to download the software later when watching the TV, thereby effectively reducing the software upgrade time. Can be.

1 is a view showing the configuration of a software upgrade apparatus according to the present invention.

2 is a diagram for explaining a message displayed according to the present invention;

Figure 3 is a flow chart for explaining a step-by-step software download method in the software upgrade apparatus according to the present invention.

4 is a flowchart illustrating a step-by-step method of software upgrade in a software upgrade apparatus according to the present invention.

<< Explanation of symbols for main part of drawing >>

100: broadcast receiving unit 110: image processing unit

120: display unit 130: key input unit

140: OAD processing unit 150: storage unit

160: control unit 170: OSD processing unit

Claims (8)

A broadcast receiving unit which receives a broadcast signal input from the outside in a standby state; An OAD processing unit for extracting corresponding OAD data from the broadcast signal received through the broadcast receiving unit; A storage unit for storing the OAD data extracted through the OAD processing unit; And, And a controller for checking the presence or absence of OAD data according to the set from the received broadcast signal in a standby state, and outputting a control signal to store the detected data according to the presence or absence of the OAD data. Software upgrade apparatus characterized in that. The method of claim 1, And an on-screen display processing unit configured to display a message indicating whether or not the pre-stored OAD data is present in the standby state when a power-on command is input from an external device. The method of claim 2, And the controller controls the software upgrade to be performed based on the OAD data previously stored in the storage unit in a standby state according to a user request. The method of claim 1, The OAD processing unit selectively extracts only Download Server Initiate Message (DSI), Download Info Indication Message (DDI), and Download Data Block (DDB) information. Receiving a broadcast signal input from the outside in a standby state; Checking the presence or absence of OAD data from the received broadcast signal; Extracting OAD data from the received broadcast signal according to the presence or absence of the OAD data; And, And upgrading the extracted OAD data. The method of claim 5, And displaying a message indicating whether there is already stored OAD data in a standby state when a power-on command is input from an external device. The method of claim 6, And performing a software upgrade based on pre-stored OAD data in the standby state according to a command input from the outside. The method of claim 5, Extracting the OAD data is And selectively extracting only Download Server Initiate Message (DSI), Download Info Indication Message (DDI), and Download Data Block (DDB) information from all of the received OAD data.

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