• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    In the present invention, in the display of an OSD menu screen displayed to provide various additional information and additional functions in a satellite broadcasting receiver, a fade in / out function is added to make the OSD screen more natural than on / off. The present invention relates to an OSD control method of a satellite broadcast receiver capable of providing a menu screen. To this end, the present invention provides a method for generating an OSD control signal and an OSS driving control signal for an OSD driver; Displaying a black image based on the OSD driving control signal, and configuring the menu screen data into an OSD screen of a predetermined type; Gradually increasing a mixing level for displaying the configured OSD screen from a default value, and gradually displaying the OSD screen corresponding to the increased mixing level; Gradually reducing the mixing level to the default value when a predetermined time elapses without a key signal for performing a specific command being input while the OSD screen is displayed; Gradually turning off the displayed OSD screen in response to the reduced mixing level to display a black image; When the OSD screen is turned off, turning off the OSD to turn off the black image and switching to the normal viewing mode.
    公开号:KR19990071107A
    申请号:KR1019980006364
    申请日:1998-02-27
    公开日:1999-09-15
    发明作者:이재범
    申请人:전주범；대우전자 주식회사；
    IPC主号:
    专利说明:

    OSD control method of satellite broadcasting receiver
    The present invention relates to a satellite broadcast receiver, and more particularly, to control an OSD of a satellite broadcast receiver suitable for efficiently controlling an on-screen display (OSD) screen used for displaying various additional information and a menu screen of a satellite broadcast receiver. It is about a method.
    Satellite broadcasting is a broadcasting system that can receive broadcast signals from ground stations (broadcasting earth stations) using broadcast satellites and receive them directly with satellite receiving antennas in each home, and compares the information with existing terrestrial or cable broadcasting systems. It is a broadcasting method in which the selection range is greatly expanded.
    The satellite broadcast receiver used for the satellite broadcast receives the bit stream provided from the satellite, processes the broadcast signal of the selected channel, and then provides it to a display device (for example, a TV). In this case, the bit stream provided from the satellite includes various information such as broadcast signals (video data and audio data), event information table (EIT), and time data table (TDT) for each channel.
    Accordingly, a general satellite broadcast receiver is provided with various OSD menu screens to display such various information. The OSD menu screen provided by a general satellite broadcast receiver includes detailed information (eg, channel name, program, etc.) about a broadcast channel selected by a user. Title, program rating, broadcast time, etc.). The various OSD menu screens display detailed information about the corresponding channel on the whole or a part of the screen according to the user's channel selection or switching, and then automatically turn off when a predetermined time elapses.
    In the OSD menu screens provided by the satellite broadcasting receiver, a fade-in or fade-out function, i.e., an OSD menu screen, is not used in an on / off mode. If the various OSD menu screens are provided in the fade in / out mode, more various user's needs will be satisfied.
    Accordingly, the present invention provides an OSD control method of a satellite broadcast receiver capable of displaying various menu screens provided by a satellite broadcast receiver by fading in or out based on a predetermined time. The purpose is.
    In order to achieve the above object, the present invention provides a menu of various types of additional information inserted in the satellite broadcast signal in a satellite broadcast receiver that receives a satellite broadcast signal provided from the outside and displays the same on a screen through a predetermined signal processing process. An OSD control method for displaying and configuring a screen, comprising: a first step of, when a key signal for displaying the various menu screens is input, generating data on the menu screen and an OSD driving control signal to an OSD driver; A second step of displaying a black image based on the OSD driving control signal and configuring the menu screen data into an OSD screen of a predetermined type; A third step of gradually increasing a mixing level for displaying the configured OSD screen from a default value and gradually displaying the OSD screen in response to the increased mixing level; A fourth step of gradually reducing the mixing level to the default value when a predetermined time elapses without a key signal for executing a specific command while the OS screen is displayed; A fifth step of gradually turning off the displayed OSD screen in response to the decreased mixing level to display a black image; When the OSD screen is turned off, the OSS control method of the satellite broadcasting receiver includes a sixth step of turning off the black image, switching off the black image, and switching to the normal viewing mode.
    1 is a block diagram of a satellite broadcast receiver suitable for applying an OSD control method of a satellite broadcast receiver according to an embodiment of the present invention;
    2 is a view for explaining an OSD control method of a satellite broadcasting receiver according to an embodiment of the present invention;
    3 is a flowchart illustrating an OSD control process of a satellite broadcasting receiver according to an exemplary embodiment of the present invention.
    <Description of the code | symbol about the principal part of drawing>
    110: key input unit 120: microcomputer
    130: tuner and demodulator 140: MPEG decoder
    150: memory unit 160: video encoder
    170: OSD unit 180: image synthesizing unit
    Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.
    1 is a block diagram of a satellite broadcast receiver suitable for applying an OSD control method of a satellite broadcast receiver according to an exemplary embodiment of the present invention. The key input unit 110, the microcomputer 120, the tuner, and the demodulator 130 are shown in FIG. ), An MPEG decoder 140, a memory unit 150, a video encoder 160, an OSD unit 170, and an image synthesizer 180.
    The key input unit 110 is composed of key metrics on a remote controller or its own panel to provide a corresponding key signal to the microcomputer 120 based on a user's operation, and the microcomputer 120 receives a key from the key input unit 110. Based on the signal, various control signals for performing corresponding functions, a tuning control signal for tuning the broadcast channel selected by the user, and a control signal for driving the OSD unit 170 are generated. The tuner and demodulator 130 receives a bit stream received from a satellite, not shown, to tune a broadcast signal for a specific channel selected by a user through manipulation of the key input unit 110, and again, a predetermined type of signal. The video signal and audio signal and additional information according to each broadcast program are separately output from the demodulated broadcast signal.
    In this case, the MPEG decoder 140 decodes the video signal and the audio signal separated from the tuner and the demodulator 130 based on the decoding control signal provided from the microcomputer 120, and the video encoder 160 decodes the MPEG. The decoded video signal output from the decoder 150 is converted into an NTSC or PAL analog video signal and then provided to the image synthesizer 180. In addition, the OSD unit 180 configures various menu screen information provided from the microcomputer 120 into a predetermined OSD screen and displays the same on the screen through the image synthesizing unit 190 to be described later. Accordingly, the image synthesizing unit 190 transmits the analog satellite broadcasting signal output from the video encoder 170 to the display side, not shown, or mixes various menu screens displayed through the OSD unit 180 to the display side, not shown. Will be delivered.
    FIG. 2 is a diagram illustrating a detailed configuration of the above-described image synthesizing unit 180. As shown in the drawing, the satellite broadcasting provided from the video encoder 160 to the image synthesizing unit 180 through a line L181. The signal, the black signal and OSD data provided from the OSD unit 170, and the OSD mixing level value are transmitted through the lines L182, L186, and L187.
    When the user requests a specific menu screen by manipulating the key input unit 110 in the satellite broadcasting receiver configured as described above, the microcomputer 120 reads the menu screen information stored in the memory unit 150 together with the driving control signal. The OSD unit 170 is provided to the OSD unit 170. The OSD unit 170 configures the input menu screen data into an OSD screen of a predetermined type, and displays a black signal and an OSD screen through the lines L182, L186, and 187, respectively. The mixing level of the data and the OSD screen is transmitted to the image synthesizer 180. That is, when the driving control signal and the menu screen information for displaying the OSD screen are provided from the microcomputer 120, the OSD unit 170 generates a black image signal and outputs the black image signal through the line L182. Through the OSD screen data is transmitted to the image synthesizing unit 180.
    Accordingly, the signal output through the line L183 in the image synthesizing unit 180 is mixed with the black signal and the image signal input from the video encoder 160, and is output. The line L184 includes the black signal, the video signal, A signal mixed with the OSD screen data is output. At the same time, the OSD unit 170 adjusts a mixing level of the OSD screen data through the line L187. As a result, only the black image is displayed on the screen displayed through the image synthesizing unit 180 at the time when the OSD unit 170 is driven, and then the OSD screen is gradually displayed by increasing the mixing level.
    On the other hand, the above-described mixing level is gradually increased on the basis of when the initial OSD screen is on (on) to gradually increase the ratio of the OSD screen data input through the line (L186), for example, When the output is gradually increased from the 0 level to the 8 level at the time of being turned on, the change of the signal output through the line L188 is output only the initial black signal, and the fade in shape of the OSD screen is gradually displayed. Is output.
    If the user inputs a key signal to turn off the menu screen displayed on the screen by operating the key input unit 110 while the OSD menu screen is displayed through the above-described process, the microcomputer 120 displays the OSD unit ( 170, the driving of the OSD is turned off. In addition, the OSD unit 170 restores the mixing level to an initial value.
    That is, the mixing level value in the state in which the OSD menu screen is displayed becomes '8', which is the maximum value. When driving is blocked by the control of the microcomputer 120, the OSD unit 170 displays the line L182 and the line ( The output of the black signal and the OSD data provided to the image synthesizing unit 180 is blocked through L186, and the mixing level value output through the line L187 is restored to '0'. Therefore, the image synthesizing unit 180 outputs only the image signal for the satellite broadcast signal input from the video encoder 160 through the line L181.
    On the other hand, various OSD menu screens provided by general satellite broadcasting receivers automatically display the menu screen displayed on the screen when a key signal for turning off the menu screen or a key signal for performing another specific command is not input for a predetermined time. If the user does not input the menu screen off key signal while the OSD menu screen is displayed through the above-described process, and the predetermined time elapses, the microcomputer 120 displays the OSD menu screen. A control signal for fading out is generated and provided to the OSD unit 170.
    At this time, the OSD unit 170 gradually reduces the mixing level of the OSD data provided to the image synthesizing unit 180 through the line L187 based on the control signal provided from the microcomputer 120. That is, when the OSD menu screen is displayed, the mixing level value input to the image synthesizing unit 180 through the line L187 becomes '8'. When the fade-out control signal is generated from the microcomputer 120, the OSD is displayed. The unit 170 gradually decreases the mixing level value and converts it to '0' which is the lowest mixing level value.
    In addition, the OSD unit 170 blocks the black signal and the OSD data provided to the image synthesizing unit 180 through the lines L182 and L186, respectively, and thus inputs from the video encoder 160 through the line L181. The video signal of the satellite broadcast channel is displayed on the screen through the image synthesizer 180. As a result, in displaying the OSD menu screen provided by the satellite broadcasting receiver on the screen, it is possible to display by applying a fade in / fade out method rather than a simple on / off method.
    3 is a flowchart illustrating an OSD control process of a satellite broadcasting receiver according to an exemplary embodiment of the present invention. A series of processes described above with reference to the accompanying drawings will be described in detail.
    In the satellite broadcasting receiver having a structure as shown in FIG. 1, during a normal viewing mode in which a broadcast signal for a specific channel selected by a user is received and displayed on a screen through a predetermined signal processing process (step 301), a key input unit is performed. If a key signal for displaying the OSD menu screen is input through 110 (step 303), the microcomputer 120 provides the OSD screen control information and the menu screen information stored in the memory unit 150 to the OSD unit 170. Done. In this case, the OSD unit 170 may adjust the mixing level of the black signal, the OSD screen data, and the OSD screen through the lines L182, L186, and L187 based on the driving control signal provided from the microcomputer 120. 180) (step 305). In this case, since the mixing level input to the image synthesizing unit 180 through the line L187 has a minimum value (for example, 0) in the entire mixing level range, only the black image is displayed on the screen.
    On the other hand, the OSD unit 170 gradually increases the above-described mixing level (step 307) so that the OSD screen is output through the image synthesizing unit 180 so that the OSD screen corresponding to the user's menu screen key signal is displayed. It fades in and is displayed on the screen (step 309).
    When the OSD screen is displayed through the above-described process, the mixing level value output from the OSD unit 170 maintains the maximum value (for example, 8) of the entire level range. When the key signal for turning off the OSD menu screen displayed on the current screen is input through the key input unit 110 in the displayed state (step 311), the microcomputer 120 generates a driving control signal to the OSD unit 170. In operation 313, the OSD menu screen data inputted to the image synthesizing unit 180 is blocked. Accordingly, the menu screen displayed on the screen is turned off. At this time, the OSD unit 170 restores the mixing level value to a default value, that is, the lowest value '0' (step 315).
    On the contrary, if a predetermined time (for example, 7 seconds) is input without inputting a key signal for performing another specific command in the state in which the key signal for turning off the menu screen is not input in the above-described step 311. When the elapsed time (step 317), the microcomputer 120 generates a fade-out control signal to the OSD unit 170, and the OSD unit 170 inputs the image synthesizer 180 through the line L187. The mixing level is gradually reduced (step 319). Accordingly, the OSD menu screen output through the image synthesizing unit 180 gradually fades out so that only the black image input from the line L182 is displayed on the screen, thereby turning off the OSD menu screen (step 321).
    When the OSD menu screen is faded out and turned off through the above-described process, the microcomputer 120 blocks driving of the OSD unit 170 (step 323) and outputs the black image output through the respective lines L182 and L186. It cuts off the output of signal and OSD data. That is, even though the OSD menu screen fades out through the above-described process, since the actual OSD unit 170 continues to be driven, a black image is displayed on the screen. Therefore, when the menu level fades out when the mixing level reaches the minimum value, the microcomputer 120 blocks the driving of the OSD unit 170 to remove the black image, and then, in the initial step 301, which describes the overall operation of the satellite broadcasting receiver. In operation 325, the user enters the normal viewing mode.
    By displaying various menu screens provided by the satellite broadcasting receiver by fadeing in / out instead of on / off mode, the function of the menu screen of the satellite broadcasting receiver can be improved. There is an effect that can meet the needs.
    权利要求:
    Claims (2)
    [1" claim-type="Currently amended] The OSD control method of displaying and configuring various additional information inserted into the satellite broadcast signal into a menu screen in a satellite broadcast receiver that receives a satellite broadcast signal provided from the outside and displays it on a screen through a predetermined signal processing process. To
    A first step of generating data for the menu screen and an OSD driving control signal to an OSD driver if an input key signal for displaying the various menu screens is input;
    A second step of displaying a black image based on the OSD driving control signal and configuring the menu screen data into an OSD screen of a predetermined type;
    A third step of gradually increasing a mixing level for displaying the configured OSD screen from a default value and gradually displaying the OSD screen in response to the increased mixing level;
    A fourth step of gradually reducing the mixing level to the default value when a predetermined time elapses without a key signal for executing a specific command while the OS screen is displayed;
    A fifth step of displaying the black image by turning off the displayed OSD screen in response to the reduced mixing level;
    And controlling the OSD to be off when the OSD screen is turned off, thereby turning off the black image and switching to the normal viewing mode.
    [2" claim-type="Currently amended] The black image and the OSD screen of claim 1, wherein in the fourth step, when a key signal for turning off the OSD screen is input while the OSD screen is displayed, the driving of the OSD is blocked. Turning off the first process;
    And if the OSD screen is turned off, the second process of switching the mixing level to the default value.
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    同族专利:
    公开号 | 公开日
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    法律状态:
    1998-02-27|Application filed by 전주범, 대우전자 주식회사
    1998-02-27|Priority to KR1019980006364A
    1999-09-15|Publication of KR19990071107A
    优先权:
    申请号 | 申请日 | 专利标题
    KR1019980006364A|KR19990071107A|1998-02-27|1998-02-27|OSD control method of satellite broadcasting receiver|
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