WO2008062933A1 - Display apparatus and control method thereof - Google Patents

Display apparatus and control method thereof Download PDF

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Publication number
WO2008062933A1
WO2008062933A1 PCT/KR2007/001999 KR2007001999W WO2008062933A1 WO 2008062933 A1 WO2008062933 A1 WO 2008062933A1 KR 2007001999 W KR2007001999 W KR 2007001999W WO 2008062933 A1 WO2008062933 A1 WO 2008062933A1
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WO
WIPO (PCT)
Prior art keywords
broadcast
signal
unit
received
methods
Prior art date
Application number
PCT/KR2007/001999
Other languages
French (fr)
Inventor
Jong-Pill Park
Original Assignee
Samsung Electronics Co., Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Samsung Electronics Co., Ltd. filed Critical Samsung Electronics Co., Ltd.
Priority to BRPI0719136-7A priority Critical patent/BRPI0719136A2/en
Priority to MX2009005296A priority patent/MX2009005296A/en
Publication of WO2008062933A1 publication Critical patent/WO2008062933A1/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H04N5/46—Receiver circuitry for the reception of television signals according to analogue transmission standards for receiving on more than one standard at will
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/438—Interfacing the downstream path of the transmission network originating from a server, e.g. retrieving encoded video stream packets from an IP network
    • H04N21/4383—Accessing a communication channel
    • H04N21/4384—Accessing a communication channel involving operations to reduce the access time, e.g. fast-tuning for reducing channel switching latency
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/47—End-user applications
    • H04N21/482—End-user interface for program selection

Definitions

  • Apparatuses and methods consistent with the present invention relate to a display device and a controlling method thereof, and more particularly, to a display device for processing a broadcast signal according to a broadcast method for receiving the broadcast signal and a controlling method thereof.
  • display devices such as a TV, receive a video signal including an image from a broadcasting station or an external device connected thereto, and processes the signal to display the image.
  • the broadcast signal may be transmitted by using one broadcast method among a national television systems committee (NTSC) method, a phase alternation by line (PAL) method, and a sequentiel line memoire (SECAM) method.
  • NTSC national television systems committee
  • PAL phase alternation by line
  • SECAM sequentiel line
  • standards for the number of scan lines, a field frequency, a color signal modulation method are different.
  • the above methods are divided into an NTSC-M, a PAL-B, a PAL-D, a PAL-M, a PAL-N, a SECAM-L, and a SECAM-K.
  • the NTSC-M broadcast method is used in Korea.
  • the display device When receiving the broadcast signal by changing a channel or an input mode, the display device checks the standards of the received broadcast signal to determine the broadcast method. That is, the display device firstly checks the number of lines of the broadcast signal, and determines the broadcast method as the PAL broadcast method when the number of scan lines is 625 lines (50Hz). In addition, the display device determines which PAL broadcast method is used among the PAL broadcast methods including a PAL-B, a PAL-G, a PAL-I, a PAL-D, a PAL-K, a PAL-M, a PAL-N, and a PAL-Nc, and processes the broadcast signal according to the determined method to display the broadcast signal.
  • the display device is required to precisely determine the broadcast method of the received broadcast signal among the plurality of broadcast methods. Accordingly, there is a problem in that it takes a considerable time to determine the broadcast method of the broadcast signal and process the signal.
  • an algorithm for determining the broadcast method is used in a worldwide display device. That is, in an area in which only 2 or 3 broadcast methods are supported, there is a problem in that it takes a relatively long time to process the broadcast signal to display the image.
  • a display apparatus comprising: a signal receiving unit which receives a broadcast signal; a signal processing unit which processes the broadcast signal; a user input unit which receives a selection signal of at least one broadcast method among a plurality of broadcast methods; and a controlling unit which determines whether a received broadcast method of the received broadcast signal is one of selected broadcast methods to which the selection signal is input by the user input unit if the broadcast signal is received from the signal receiving unit, and controls the signal processing unit to process the received broadcast signal based on the selected broadcast method if the received broadcast method is one of the selected broadcast methods.
  • the display device further comprises a display unit; and a user interface (UI) generating unit; wherein the controlling unit controls the UI generating unit to generate a broadcast method selecting menu which selects the broadcast method for receiving the selection signal of at least one broadcast method among the plurality of broadcast methods to display the broadcast method selecting menu on the display unit.
  • UI user interface
  • the controlling unit controls the signal processing unit to process the broadcast signal by a default broadcast method if the received broadcast method is not one of the selected broadcast methods to which the selection signal is input by the user input unit.
  • the broadcast method of the broadcast signal that is received by the signal receiving unit comprises at least one method among a national television systems committee (NTSC) method, a phase alternation by line (PAL) method, and a sequentiel line memoire (SECAM) method.
  • NSC national television systems committee
  • PAL phase alternation by line
  • SECAM sequentiel
  • the display device further comprises a storage unit, wherein the controlling unit stores the selected broadcast method corresponding to the selection signal input from the user input unit in the storage unit.
  • a controlling method of a display device comprising: generating and displaying a broadcast method selecting menu for a selection signal input of at least one broadcast method among a plurality of broadcast methods possible to receive a broadcast signal; receiving the selection signal of the broadcast method through the broadcast method selecting menu; if the broadcast signal is received, determining whether a received broadcast method of the received broadcast signal is one of selected broadcast methods; and if the received broadcast method is one of the selected broadcast methods, processing the broadcast signal based on the selected broadcast method.
  • the broadcast signal is processed by a default broadcast method if the received broadcast method is not one of the selected broadcast methods to which the selection signal is input.
  • the broadcast method for receiving the broadcast signal comprises at least one method among a national television systems committee (NTSC) method, a phase alternation by line (PAL) method, and a sequentiel line memoire (SECAM) method.
  • NSC national television systems committee
  • PAL phase alternation by line
  • SECAM sequentiel
  • the receiving of the selection signal of the broadcast method further comprises storing the selected broadcast method corresponding to the input selection signal.
  • FIG. 1 shows a control block diagram of a display device according to an exemplary embodiment of the present invention.
  • FIG. 2 shows a flowchart representing a controlling process of the display device according to the exemplary embodiment of the present invention.
  • FIG. 1 shows a control block diagram of a display device according to an exemplary embodiment of the present invention.
  • the display device includes a signal receiving unit 10, a signal processing unit 20, a display unit 30, a user input unit 40, a user interface (UI) generating unit 50, a storage unit 70, and a controlling unit 60.
  • a signal receiving unit 10 a signal processing unit 20
  • a display unit 30 a user input unit 40
  • UI user interface
  • the signal receiving unit 10 includes a tuning unit (not shown) for receiving a broadcast signal.
  • the tuning unit includes one or more tuners, a demodulator and a decoder for demodulating a tuned signal, a decoder, and a multiplexer (MUX).
  • MUX multiplexer
  • the tuning unit tunes the broadcast signal having a frequency band corresponding to a tuning control signal of the controlling unit 60.
  • the broadcast signal of a tuned channel is received in a transport stream type that is formed as a packet by time-division multiplexing a video signal, audio signal, and various data.
  • the demodulator when a digital broadcast signal is received, the demodulator performs a vestigial sideband (VSB) modulation process and an error correction process for the received broadcast signal and outputs the broadcast signal in a transport stream type.
  • the tuning unit (not shown) includes an analog tuner and a digital tuner, so that it may be used as a multi-tuning unit for receiving an analog broadcast signal and a digital broadcast signal.
  • the signal processing unit 20 processes the broadcast signal input from the signal receiving unit 10 according to a control operation of the controlling unit 60 and provides the broadcast signal to the display unit 30 to display the broadcast signal.
  • the signal processing unit 20 may include various functions corresponding to a format type of an input video signal.
  • an analog/digital (AJO) converting function for converting various input video signals into a digital video signal of a predetermined format
  • a digital decoding function for converting various input video signals into a digital video signal of a predetermined format
  • scaling and format converting functions for receiving the digital video signal and/or the analog video signal and adjusting a vertical frequency, a resolution, and a screen aspect ratio according to an output size of the display unit 30.
  • the display unit 30 displays the broadcast signal processed by the signal processing unit 20, and it may be formed as a digital light processor (DLP) device, a liquid crystal display (LCD), and a plasma display panel (PDP).
  • DLP digital light processor
  • LCD liquid crystal display
  • PDP plasma display panel
  • the user input unit 40 inputs a selection signal of at least one broadcast method among a plurality of broadcast methods for transmitting the broadcast signal, and it may include a menu key provided on a remote controller or a case so as to input the selection signal, and a key signal generating unit for generating a key signal in response to a key operation.
  • the user input unit 40 may further include number and direction keys for selecting a channel, and a function key for selecting a function of the display device.
  • the UI generating unit 50 generates a broadcast method selecting menu for selecting at least one broadcast method by the control of the controlling unit 60, and it may be realized as an on screen display (OSD) generator. In addition, the UI generating unit 50 may be included in the signal processing unit 20 for processing the received broadcast signal.
  • OSD on screen display
  • the storage unit 70 stores the selected broadcast method input from the user input unit, and it may be realized by an internal ROM, a flash memory, or an S-RAM. In addition, the storage unit 70 may store a default broadcast method, and the broadcast method decoded by the signal processing unit. The default broadcast method may be differently stored for each area.
  • the controlling unit 60 receives the selected broadcast method, determines whether a received broadcast method is selected by a user, and processes the received broadcast signal.
  • the controlling unit 60 may be realized by a central processing unit or a controller of a microcomputer (Micom).
  • the controlling unit 60 controls the UI generating unit 50 to generate the broadcast method selecting menu for selecting at least one among the plurality of broadcast method.
  • the broadcast method includes a national television systems committee (NTSC) method, a phase alternation by line (PAL) method, a sequentiel line (SECAM), and further includes an NTSC-M, a PAL-B, a PAL-D, a PAL-M, a PAL-N, a SECAM-L, and a SECAM-K.
  • NTSC national television systems committee
  • PAL phase alternation by line
  • SECAM sequentiel line
  • the broadcast method selecting menu generated by the UI generating unit 50 includes the above broadcast methods.
  • the controlling unit 60 may store the broadcast method in the storage unit 70.
  • the broadcast methods that may be received in a corresponding area are included in the broadcast method selecting menu by the control of the controlling unit 60, and therefore the user may select a receivable broadcast method.
  • the controlling unit 60 determines the broadcast method of the received broadcast signal (hereinafter referred to as a received broadcast method ) by using the broadcast method to which the selection signal is input by the user input unit 40 (hereinafter referred to as a selected broadcast method ).
  • the controlling unit 60 may determine the broadcast method by using standard including the number of scan lines, a field frequency, and a color signal modulation method of the broadcast signal.
  • the controlling unit 60 compares the standard of the received broadcast signal and the standard of the selected broadcast method, and determines whether the received broadcast method is one of the selected broadcast methods. In addition, when the received broadcast method is one of the selected broadcast methods, the controlling unit 60 controls the signal processing unit 20 to process the broadcast signal by the selected broadcast method.
  • the controlling unit 60 may not determine the received broadcast method. Accordingly, the controlling unit 60 controls the signal processing unit 20 so as to process the broadcast signal by the default broadcast method stored in the storage unit 70.
  • the controlling unit 60 determines the number of scan lines of the received broadcast signal when receiving the broadcast signal.
  • the number of scan lines is 625 in the PAL-N method, and 525 in the NTSC-M method, respectively. Accordingly, when the number of scan lines of the received broadcast signal is 525, the controlling unit 60 determines the broadcast method to be NTSC-M method and processes the broadcast signal by the NTSC-M method.
  • the received broadcast signal is processed by the default broadcast method stored in the storage unit 70.
  • the controlling unit 60 controls the UI generating unit 50 to generate and display a broadcast method selecting menu for selecting at least one broadcast method among the plurality of broadcast methods at operation of Sl.
  • the controlling unit 60 determines whether a broadcast signal is received at operation of S5.
  • the controlling unit 60 determines at operation of S7 whether a received broadcast method for receiving the broadcast signal is one of the selected broadcast methods. In this case, the controlling unit 60 compares a standard of the received broadcast signal and the standard of the selected broadcast method corresponding to the selection signal input from the user input unit 40 so as to determine the received broadcast method.
  • the controlling unit 60 controls the signal processing unit 20 to process the received broadcast signal by the selected broadcast method at operation of S9.
  • the controlling unit 60 controls the signal processing unit 20 to process the received broadcast signal by the default broadcast method at operation of SIl.
  • the present invention has been made in an effort to provide a display device for reducing a time for determining the broadcast method since the user selects at least one broadcast method among the plurality of broadcast methods, and the broadcast method of the received broadcast signal is compared to the selected broa dcast method, and a controlling method thereof.
  • the present invention has been made in an effort to provide a display device for reducing an error caused during the process for determining the broadcast method, and a controlling method thereof.

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Human Computer Interaction (AREA)
  • Circuits Of Receivers In General (AREA)
  • Controls And Circuits For Display Device (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)

Abstract

A display apparatus includes: a signal receiving unit which receives a broadcast signal; a signal processing unit which processes the broadcast signal; a user input unit which receives a selection signal of at least one broadcast method among a plurality of broadcast methods; and a controlling unit which determines whether a received broadcast method of the received broadcast signal is one of selected broadcast methods to which the selection signal is input by the user input unit if the broadcast signal is received from the signal receiving unit, and controls the signal processing unit to process the received broadcast signal based on the selected broadcast method if the received broadcast method is one of the selected broadcast methods.

Description

Description DISPLAY APPARATUS AND CONTROL METHOD THEREOF
Technical Field
[1] Apparatuses and methods consistent with the present invention relate to a display device and a controlling method thereof, and more particularly, to a display device for processing a broadcast signal according to a broadcast method for receiving the broadcast signal and a controlling method thereof.
[2]
Background Art
[3] Generally, display devices, such as a TV, receive a video signal including an image from a broadcasting station or an external device connected thereto, and processes the signal to display the image.
[4] Particularly, the broadcast signal may be transmitted by using one broadcast method among a national television systems committee (NTSC) method, a phase alternation by line (PAL) method, and a sequentiel couleur memoire (SECAM) method. In the respective broadcast methods, standards for the number of scan lines, a field frequency, a color signal modulation method are different. In further detail, the above methods are divided into an NTSC-M, a PAL-B, a PAL-D, a PAL-M, a PAL-N, a SECAM-L, and a SECAM-K. The NTSC-M broadcast method is used in Korea.
[5] When receiving the broadcast signal by changing a channel or an input mode, the display device checks the standards of the received broadcast signal to determine the broadcast method. That is, the display device firstly checks the number of lines of the broadcast signal, and determines the broadcast method as the PAL broadcast method when the number of scan lines is 625 lines (50Hz). In addition, the display device determines which PAL broadcast method is used among the PAL broadcast methods including a PAL-B, a PAL-G, a PAL-I, a PAL-D, a PAL-K, a PAL-M, a PAL-N, and a PAL-Nc, and processes the broadcast signal according to the determined method to display the broadcast signal.
[6] As described, the display device is required to precisely determine the broadcast method of the received broadcast signal among the plurality of broadcast methods. Accordingly, there is a problem in that it takes a considerable time to determine the broadcast method of the broadcast signal and process the signal.
[7] Particularly, in Central America in which the PAM-M and NTSC-M methods coexist, it takes 1200msec to 2000msec to determine the broadcast method.
[8] In addition, an algorithm for determining the broadcast method is used in a worldwide display device. That is, in an area in which only 2 or 3 broadcast methods are supported, there is a problem in that it takes a relatively long time to process the broadcast signal to display the image.
[9]
Disclosure of Invention Technical Solution
[10] Accordingly, it is an aspect of the present invention to provide a display device for reducing a time for determining a broadcast method by comparing the broadcast method of a received broadcast signal and the broadcast method selected by a user, and a controlling method thereof.
[11] The foregoing and/or other aspects of the present invention can be achieved by a display apparatus comprising: a signal receiving unit which receives a broadcast signal; a signal processing unit which processes the broadcast signal; a user input unit which receives a selection signal of at least one broadcast method among a plurality of broadcast methods; and a controlling unit which determines whether a received broadcast method of the received broadcast signal is one of selected broadcast methods to which the selection signal is input by the user input unit if the broadcast signal is received from the signal receiving unit, and controls the signal processing unit to process the received broadcast signal based on the selected broadcast method if the received broadcast method is one of the selected broadcast methods.
[12] According to the embodiment of the present invention, the display device further comprises a display unit; and a user interface (UI) generating unit; wherein the controlling unit controls the UI generating unit to generate a broadcast method selecting menu which selects the broadcast method for receiving the selection signal of at least one broadcast method among the plurality of broadcast methods to display the broadcast method selecting menu on the display unit.
[13] According to the embodiment of the present invention, the controlling unit controls the signal processing unit to process the broadcast signal by a default broadcast method if the received broadcast method is not one of the selected broadcast methods to which the selection signal is input by the user input unit.
[14] According to the embodiment of the present invention, the broadcast method of the broadcast signal that is received by the signal receiving unit comprises at least one method among a national television systems committee (NTSC) method, a phase alternation by line (PAL) method, and a sequentiel couleur memoire (SECAM) method.
[15] According to the embodiment of the present invention, the display device further comprises a storage unit, wherein the controlling unit stores the selected broadcast method corresponding to the selection signal input from the user input unit in the storage unit. [16] The foregoing and/or other aspects of the present invention can be achieved by a controlling method of a display device, the controlling method comprising: generating and displaying a broadcast method selecting menu for a selection signal input of at least one broadcast method among a plurality of broadcast methods possible to receive a broadcast signal; receiving the selection signal of the broadcast method through the broadcast method selecting menu; if the broadcast signal is received, determining whether a received broadcast method of the received broadcast signal is one of selected broadcast methods; and if the received broadcast method is one of the selected broadcast methods, processing the broadcast signal based on the selected broadcast method.
[17] According to the embodiment of the present invention, the broadcast signal is processed by a default broadcast method if the received broadcast method is not one of the selected broadcast methods to which the selection signal is input.
[ 18] According to the embodiment of the present invention, the broadcast method for receiving the broadcast signal comprises at least one method among a national television systems committee (NTSC) method, a phase alternation by line (PAL) method, and a sequentiel couleur memoire (SECAM) method.
[19] According to the embodiment of the present invention, the receiving of the selection signal of the broadcast method further comprises storing the selected broadcast method corresponding to the input selection signal.
[20]
Brief Description of the Drawings
[21] The above and/or other aspects of the present invention will become apparent and more readily appreciated from the following description of the exemplary embodiments, taken in conjunction with the accompanying drawings, in which:
[22] FIG. 1 shows a control block diagram of a display device according to an exemplary embodiment of the present invention; and
[23] FIG. 2 shows a flowchart representing a controlling process of the display device according to the exemplary embodiment of the present invention.
[24]
Best Mode for Carrying Out the Invention
[25] Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout. The embodiments are described below so as to explain the present invention by referring to the figures.
[26] FIG. 1 shows a control block diagram of a display device according to an exemplary embodiment of the present invention. As shown in FIG. 1, the display device includes a signal receiving unit 10, a signal processing unit 20, a display unit 30, a user input unit 40, a user interface (UI) generating unit 50, a storage unit 70, and a controlling unit 60.
[27] The signal receiving unit 10 according to the exemplary embodiment of the present invention includes a tuning unit (not shown) for receiving a broadcast signal. Here, the tuning unit (not shown) includes one or more tuners, a demodulator and a decoder for demodulating a tuned signal, a decoder, and a multiplexer (MUX).
[28] In addition, the tuning unit tunes the broadcast signal having a frequency band corresponding to a tuning control signal of the controlling unit 60. The broadcast signal of a tuned channel is received in a transport stream type that is formed as a packet by time-division multiplexing a video signal, audio signal, and various data.
[29] For example, when a digital broadcast signal is received, the demodulator performs a vestigial sideband (VSB) modulation process and an error correction process for the received broadcast signal and outputs the broadcast signal in a transport stream type. In this case, the tuning unit (not shown) includes an analog tuner and a digital tuner, so that it may be used as a multi-tuning unit for receiving an analog broadcast signal and a digital broadcast signal.
[30] The signal processing unit 20 processes the broadcast signal input from the signal receiving unit 10 according to a control operation of the controlling unit 60 and provides the broadcast signal to the display unit 30 to display the broadcast signal.
[31] In addition, the signal processing unit 20 may include various functions corresponding to a format type of an input video signal. For example, an analog/digital (AJO) converting function for converting various input video signals into a digital video signal of a predetermined format, a digital decoding function, and scaling and format converting functions for receiving the digital video signal and/or the analog video signal and adjusting a vertical frequency, a resolution, and a screen aspect ratio according to an output size of the display unit 30.
[32] The display unit 30 displays the broadcast signal processed by the signal processing unit 20, and it may be formed as a digital light processor (DLP) device, a liquid crystal display (LCD), and a plasma display panel (PDP).
[33] The user input unit 40 inputs a selection signal of at least one broadcast method among a plurality of broadcast methods for transmitting the broadcast signal, and it may include a menu key provided on a remote controller or a case so as to input the selection signal, and a key signal generating unit for generating a key signal in response to a key operation. In addition, the user input unit 40 may further include number and direction keys for selecting a channel, and a function key for selecting a function of the display device.
[34] The UI generating unit 50 generates a broadcast method selecting menu for selecting at least one broadcast method by the control of the controlling unit 60, and it may be realized as an on screen display (OSD) generator. In addition, the UI generating unit 50 may be included in the signal processing unit 20 for processing the received broadcast signal.
[35] The storage unit 70 stores the selected broadcast method input from the user input unit, and it may be realized by an internal ROM, a flash memory, or an S-RAM. In addition, the storage unit 70 may store a default broadcast method, and the broadcast method decoded by the signal processing unit. The default broadcast method may be differently stored for each area.
[36] The controlling unit 60 receives the selected broadcast method, determines whether a received broadcast method is selected by a user, and processes the received broadcast signal. The controlling unit 60 may be realized by a central processing unit or a controller of a microcomputer (Micom).
[37] In further detail, when user input unit 40 selects the broadcast method selecting function for selecting the broadcast method, the controlling unit 60 controls the UI generating unit 50 to generate the broadcast method selecting menu for selecting at least one among the plurality of broadcast method.
[38] Here, the broadcast method includes a national television systems committee (NTSC) method, a phase alternation by line (PAL) method, a sequentiel couleur memoire (SECAM), and further includes an NTSC-M, a PAL-B, a PAL-D, a PAL-M, a PAL-N, a SECAM-L, and a SECAM-K. Accordingly, the broadcast method selecting menu generated by the UI generating unit 50 includes the above broadcast methods.
[39] When receiving the selection signal of at least one broadcast method in the broadcast method selecting menu from the user input unit 40, the controlling unit 60 may store the broadcast method in the storage unit 70.
[40] Here, the broadcast methods that may be received in a corresponding area are included in the broadcast method selecting menu by the control of the controlling unit 60, and therefore the user may select a receivable broadcast method.
[41] In addition, when receiving the broadcast signal, the controlling unit 60 determines the broadcast method of the received broadcast signal (hereinafter referred to as a received broadcast method ) by using the broadcast method to which the selection signal is input by the user input unit 40 (hereinafter referred to as a selected broadcast method ). Here, the controlling unit 60 may determine the broadcast method by using standard including the number of scan lines, a field frequency, and a color signal modulation method of the broadcast signal.
[42] That is, the controlling unit 60 compares the standard of the received broadcast signal and the standard of the selected broadcast method, and determines whether the received broadcast method is one of the selected broadcast methods. In addition, when the received broadcast method is one of the selected broadcast methods, the controlling unit 60 controls the signal processing unit 20 to process the broadcast signal by the selected broadcast method.
[43] When the received broadcast method is not one of the selected broadcast methods, the controlling unit 60 may not determine the received broadcast method. Accordingly, the controlling unit 60 controls the signal processing unit 20 so as to process the broadcast signal by the default broadcast method stored in the storage unit 70.
[44] For example, when it is assumed that the user input unit 40 selects the PAL-N, and
NTSC-M methods, the controlling unit 60 determines the number of scan lines of the received broadcast signal when receiving the broadcast signal. The number of scan lines is 625 in the PAL-N method, and 525 in the NTSC-M method, respectively. Accordingly, when the number of scan lines of the received broadcast signal is 525, the controlling unit 60 determines the broadcast method to be NTSC-M method and processes the broadcast signal by the NTSC-M method.
[45] After comparing the received broadcast method with the selected broadcast methods,
PAL-N and NTSC-M methods, and determined that the received broadcast method is not any one of the selected broadcast methods, the received broadcast signal is processed by the default broadcast method stored in the storage unit 70.
[46] Accordingly, since the user selects at least one broadcast method among the plurality of broadcast methods and the broadcast method of the received broadcast signal is compared to the selected broadcast methods, a time for determining the broadcast method is reduced. In addition, since a process for determining the broadcast method is simplified, a time for displaying the received broadcast signal may be reduced.
[47] In addition, an error caused during the process for determining the broadcast method may be reduced.
[48] The controlling method of the display device according to the exemplary embodiment of the present invention will be described with reference to FIG. 2.
[49] As shown in FIG. 2, the controlling unit 60 controls the UI generating unit 50 to generate and display a broadcast method selecting menu for selecting at least one broadcast method among the plurality of broadcast methods at operation of Sl.
[50] When the user input unit 40 selects the broadcast method at operation of S3, the controlling unit 60 determines whether a broadcast signal is received at operation of S5.
[51] When receiving the broadcast signal, the controlling unit 60 determines at operation of S7 whether a received broadcast method for receiving the broadcast signal is one of the selected broadcast methods. In this case, the controlling unit 60 compares a standard of the received broadcast signal and the standard of the selected broadcast method corresponding to the selection signal input from the user input unit 40 so as to determine the received broadcast method.
[52] When it is determined at operation of S7 that the received broadcast method is one of the selected broadcast methods, the controlling unit 60 controls the signal processing unit 20 to process the received broadcast signal by the selected broadcast method at operation of S9.
[53] When it is determined that the received broadcast method is not one of the selected broadcast methods, the controlling unit 60 controls the signal processing unit 20 to process the received broadcast signal by the default broadcast method at operation of SIl.
[54] Accordingly, since the user selects at least one broadcast method among the plurality of broadcast methods, and the broadcast method of the received broadcast signal is compared to the selected broadcast method, a time for determining the broadcast method is reduced. In addition, since a process for determining the broadcast method is simplified, a time for displaying the received broadcast signal may be reduced.
[55] In addition, an error caused during the process for determining the broadcast method may be reduced.
[56] As described above, the present invention has been made in an effort to provide a display device for reducing a time for determining the broadcast method since the user selects at least one broadcast method among the plurality of broadcast methods, and the broadcast method of the received broadcast signal is compared to the selected broa dcast method, and a controlling method thereof.
[57] In addition, the present invention has been made in an effort to provide a display device for reducing an error caused during the process for determining the broadcast method, and a controlling method thereof.
[58] Although a few 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.
[59]

Claims

Claims
[1] A display apparatus comprising: a signal receiving unit which receives a broadcast signal; a signal processing unit which processes the broadcast signal; a user input unit which receives a selection signal of at least one broadcast method among a plurality of broadcast methods; and a controlling unit which determines whether a received broadcast method of the received broadcast signal is one of selected broadcast methods to which the selection signal is input by the user input unit if the broadcast signal is received from the signal receiving unit, and controls the signal processing unit to process the received broadcast signal based on the selected broadcast method if the received broadcast method is one of the selected broadcast methods.
[2] The display device of claim 1, further comprising: a display unit; and a user interface (UI) generating unit; wherein the controlling unit controls the UI generating unit to generate a broadcast method selecting menu which selects the broadcast method for receiving the selection signal of at least one broadcast method among the plurality of broadcast methods to display the broadcast method selecting menu on the display unit.
[3] The display device of claim 2, wherein the controlling unit controls the signal processing unit to process the broadcast signal by a default broadcast method if the received broadcast method is not one of the selected broadcast methods to which the selection signal is input by the user input unit.
[4] The display device of claim 3, wherein the broadcast method of the broadcast signal that is received by the signal receiving unit comprises at least one method among a national television systems committee (NTSC) method, a phase alternation by line (PAL) method, and a sequentiel couleur memoire (SECAM) method.
[5] The display device of claim 1, further comprising a storage unit, wherein the controlling unit stores the selected broadcast method corresponding to the selection signal input from the user input unit in the storage unit.
[6] A controlling method of a display device, the controlling method comprising: generating and displaying a broadcast method selecting menu for a selection signal input of at least one broadcast method among a plurality of broadcast methods possible to receive a broadcast signal; receiving the selection signal of the broadcast method through the broadcast method selecting menu; if the broadcast signal is received, determining whether a received broadcast method of the received broadcast signal is one of selected broadcast methods; and if the received broadcast method is one of the selected broadcast methods, processing the broadcast signal based on the selected broadcast method. [7] The controlling method of claim 6, wherein the broadcast signal is processed by a default broadcast method if the received broadcast method is not one of the selected broadcast methods to which the selection signal is input. [8] The controlling method of claim 7, wherein the broadcast method for receiving the broadcast signal comprises at least one method among a national television systems committee (NTSC) method, a phase alternation by line (PAL) method, and a sequentiel couleur memoire (SECAM) method. [9] The controlling method of claim 6, wherein the receiving of the selection signal of the broadcast method further comprises storing the selected broadcast method corresponding to the input selection signal.
PCT/KR2007/001999 2006-11-20 2007-04-24 Display apparatus and control method thereof WO2008062933A1 (en)

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BRPI0719136-7A BRPI0719136A2 (en) 2006-11-20 2007-04-24 display apparatus and control method thereof
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KR10-2006-0114835 2006-11-20
KR1020060114835A KR20080045581A (en) 2006-11-20 2006-11-20 Display apparatus and control method thereof

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0453937A2 (en) * 1990-04-21 1991-10-30 Samsung Electronics Co. Ltd. Channel selection method and system thereof for receiving a video signal in multi TV broadcasting system
KR980011209A (en) * 1996-07-30 1998-04-30 배순훈 How to handle Vishal's broadcast selection
KR19980031211A (en) * 1996-10-31 1998-07-25 배순훈 How to select the Autoset setting for the Pal / Secam video cassette recorder
KR20000038364A (en) * 1998-12-03 2000-07-05 구자홍 Method for switching broadcasting method
KR20050006990A (en) * 2003-07-10 2005-01-17 삼성전자주식회사 Multi-system television capable of controlling conversion of video mute time mode, and control method thereof

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0453937A2 (en) * 1990-04-21 1991-10-30 Samsung Electronics Co. Ltd. Channel selection method and system thereof for receiving a video signal in multi TV broadcasting system
KR980011209A (en) * 1996-07-30 1998-04-30 배순훈 How to handle Vishal's broadcast selection
KR19980031211A (en) * 1996-10-31 1998-07-25 배순훈 How to select the Autoset setting for the Pal / Secam video cassette recorder
KR20000038364A (en) * 1998-12-03 2000-07-05 구자홍 Method for switching broadcasting method
KR20050006990A (en) * 2003-07-10 2005-01-17 삼성전자주식회사 Multi-system television capable of controlling conversion of video mute time mode, and control method thereof

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