KR20030058112A - Signal input port selection method for digital broadcasting receiver - Google Patents

Signal input port selection method for digital broadcasting receiver Download PDF

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KR20030058112A
KR20030058112A KR1020010088499A KR20010088499A KR20030058112A KR 20030058112 A KR20030058112 A KR 20030058112A KR 1020010088499 A KR1020010088499 A KR 1020010088499A KR 20010088499 A KR20010088499 A KR 20010088499A KR 20030058112 A KR20030058112 A KR 20030058112A
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input port
signal
input
detected
last
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KR1020010088499A
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Korean (ko)
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임주빈
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엘지전자 주식회사
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Publication of KR20030058112A publication Critical patent/KR20030058112A/en

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/47End-user applications
    • H04N21/485End-user interface for client configuration
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/47End-user applications

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Human Computer Interaction (AREA)
  • Circuits Of Receivers In General (AREA)

Abstract

PURPOSE: A method of selecting a signal input port of a digital broadcasting receiver is provided to select only input port through which an A/V signal is actually inputted among input ports of a video system supporting a plurality of A/V signal. CONSTITUTION: When a user pushes an external input select key(S1), it is judged whether or not an A/V signal is detected from an input port(S3). In the case that the A/V signal is detected, the input port is selected(S4). When the A/V signal is not detected from the input port, it is judged if the input port is the last input port(S5). When the input port is not the last one, it is judged whether or not the A/V signal is detected from the next input port. In the case that the input port is the last one, a message indicating that there is no effective A/V signal is displayed on the screen of a display(S6).

Description

디지털 방송수신기의 신호 입력포트 선택 방법{SIGNAL INPUT PORT SELECTION METHOD FOR DIGITAL BROADCASTING RECEIVER}Signal input port selection method of digital broadcasting receiver {SIGNAL INPUT PORT SELECTION METHOD FOR DIGITAL BROADCASTING RECEIVER}

본 발명은 디지털 방송수신기의 신호 입력포트 선택 방법에 관한 것으로, 특히 다수의 외부 입력 신호를 지원하는 A/V 시스템에서 사용자가 입력 신호 전환을 명령하면 신호가 있는 입력포트만을 선택하여 사용자에게 기기 조작의 편의를 제공하게 한 디지털 방송수신기의 신호 입력포트 선택 방법에 관한 것이다.The present invention relates to a method of selecting a signal input port of a digital broadcast receiver, and in particular, in an A / V system supporting a plurality of external input signals, when a user instructs to switch input signals, the user selects only an input port having a signal to operate the device. The present invention relates to a signal input port selection method of a digital broadcast receiver.

일반적으로 가정에서 사용하고 있는 텔레비전은 적게는 하나부터 많게는 5~6개의 외부 A/V 신호를 한꺼번에 연결할 수 있는 입력포트를 지원하고 있으며, 이를 첨부한 도면을 참조하여 설명한다.In general, televisions used in homes support input ports for connecting at least one to as many as five to six external A / V signals at once, which will be described with reference to the accompanying drawings.

도 1은 종래 디지털 방송수신기의 내부 구성을 보인 블록도로서, 안테나(1)를 통해 수신된 디지털 티브이 신호 또는 아날로그 티브이 신호가 주튜너(2) 또는 부튜너(3)에 의해 복조된 신호와 외부입력1,2,3인 컴포지트 외부 신호를 입력받아 스위칭하여 출력하는 A/V 스위치(4)와; 상기 A/V 스위치(4)에서 출력된 복합영상 신호 또는 디지털 콤 필터(7, 8)를 거친 복합영상 신호를 복호하여 YUV 신호를 출력하는 NTSC 복호기(5, 9)와; 상기 NTSC 복호기(5, 9)에서 출력된 YUV 신호에서 동기 신호를 검출하여 출력하는 동기 검출기(6, 10)와; 상기 동기 검출기(6, 10)에서 출력되는 A/V 신호, 컴포넌트 입력1,2인 컴포넌트 외부 신호 및 VGA 입력인 RGB 외부 신호를 입력받아 신호 처리하여 편향신호와 RGB 신호를 출력하는 신호 처리기(11)로 구성된 것으로, 이와 같이 구성된 종래 디지털 방송수신기에서 입력포트를 선택하는 방법에 대해 설명하면 다음과 같다.1 is a block diagram illustrating an internal configuration of a conventional digital broadcast receiver, in which a digital TV signal or an analog TV signal received through an antenna 1 is demodulated by a main tuner 2 or a subtuner 3 and an external device. An A / V switch 4 for receiving and switching a composite external signal of inputs 1, 2, and 3; An NTSC decoder (5, 9) for outputting a YUV signal by decoding the composite video signal outputted from the A / V switch (4) or the composite video signal passed through the digital comb filters (7, 8); A synchronization detector (6, 10) for detecting and outputting a synchronization signal from the YUV signal output from the NTSC decoder (5, 9); A signal processor 11 for receiving an A / V signal output from the sync detectors 6 and 10, a component external signal of component inputs 1 and 2, and an RGB external signal of VGA input to process a signal to output a deflection signal and an RGB signal (11). The method of selecting an input port in the conventional digital broadcast receiver configured as described above is as follows.

현재 보편화되고 있는 디지털 방송수신기와 같은 영상기기에서는 디지털 티브이 신호, 아날로그 티브이 신호, 컴포지트 외부 신호, 컴포넌트 외부 신호 및 RGB 외부 신호 등 보통 7~8 개의 A/V 신호를 동시에 지원한다.Currently, video devices such as digital broadcast receivers generally support 7 to 8 A / V signals simultaneously such as digital TV signals, analog TV signals, composite external signals, component external signals, and RGB external signals.

상기 다수의 A/V 신호에서 한 개의 A/V 신호를 선택하기 위해 디지털 방송수신기는 한 개의 외부 입력 선택키를 구비하고 있다.In order to select one A / V signal from the plurality of A / V signals, the digital broadcast receiver is provided with one external input selection key.

사용자가 외부 입력 선택키를 누르면 디지털 티브이 신호, 아날로그 티브이 신호, 외부입력1, 외부입력2, 외부입력3, 컴포넌트입력1, 컴포넌터입력2 그리고 RGB입력 순으로 입력포트의 선택이 변환된다.When the user presses the external input selection key, the input port selection is switched in the order of digital TV signal, analog TV signal, external input 1, external input 2, external input 3, component input 1, component input 2 and RGB input.

사용자가 다수의 A/V 신호를 입력받는 입력포트에 임의의 A/V 신호를 입력하고 이 A/V 신호를 입력받는 입력포트를 선택하고자 상기 외부 입력 선택키를 순차적으로 눌러 선택하는데 적게는 한 번 누르거나 많게는 8 번 눌러야 원하는 입력포트를 선택할 수 있다.The user inputs an arbitrary A / V signal to an input port receiving a plurality of A / V signals and selects an input port to receive the A / V signal by sequentially pressing the external input selection keys to select the input port. Press once or as many as eight times to select the desired input port.

그러나, 상기와 같은 종래 기술에 있어서, 다수의 A/V 신호에서 원하는 하나의 A/V 신호를 선택하기 위해 외부 입력 선택키를 여러 번 눌러야 하므로 사용자가 실제 시청을 원하는 신호를 선택하고자 입력포트를 전환하는데 번거로움이 있는 문제점이 있다.However, in the prior art as described above, since the external input selection key needs to be pressed several times to select one A / V signal from a plurality of A / V signals, the user may select an input port to select a signal that the user actually wants to watch. There is a troublesome problem in switching.

따라서, 본 발명은 상기와 같은 문제점을 감안하여 창안한 것으로, 다수의 A/V 신호를 지원하는 영상기기에서 A/V 신호가 실제 입력된 입력포트만을 선택할수 있게 하여 사용자의 편의를 증진시키게 한 디지털 방송수신기의 신호 입력포트 선택 방법을 제공함에 그 목적이 있다.Accordingly, the present invention has been made in view of the above problems, and it is possible to enhance the user's convenience by selecting only an input port where an A / V signal is actually input in a video device supporting a plurality of A / V signals. It is an object of the present invention to provide a method for selecting a signal input port of a digital broadcast receiver.

도 1은 종래 디지털 방송수신기의 내부 구성을 보인 블록도.1 is a block diagram showing the internal configuration of a conventional digital broadcast receiver.

도 2는 본 발명 디지털 방송수신기의 신호 입력포트 선택 방법의 동작 흐름을 보인 순서도.Figure 2 is a flow chart showing the operation of the signal input port selection method of the present invention digital broadcast receiver.

상기와 같은 목적을 달성하기 위한 본 발명은, 사용자가 외부 입력 선택키를 누르면 다음 입력포트로 전환하고 이 입력포트에 A/V 신호가 검출되는지를 판단하여 검출되면 상기 입력포트를 선택하는 제1단계와; 상기 제1단계에서 전환한 입력포트에 A/V 신호가 검출되지 않으면 이 입력포트가 마지막 입력포트인지를 판단하고 마지막 입력포트가 아니면 상기 입력포트의 다음 입력포트로 전환하는 제2단계와; 상기 입력포트가 마지막 입력포트이면 표시부의 화면에 유효한 A/V 신호가 없음을 표시하는 제3단계로 동작하는 것을 특징으로 한다.According to the present invention for achieving the above object, the first switch to switch to the next input port when the user presses the external input selection key, and determines whether the A / V signal is detected at the input port, and selects the input port if detected. Steps; A second step of determining whether the input port is the last input port if the A / V signal is not detected in the input port switched in the first step, and switching to the next input port of the input port if it is not the last input port; If the input port is the last input port, the display device operates in a third step of displaying that there is no valid A / V signal on the screen.

이하, 본 발명에 따른 일실시예를 첨부한 도면을 참조하여 상세히 설명하면 다음과 같다.Hereinafter, an embodiment according to the present invention will be described in detail with reference to the accompanying drawings.

도 1은 종래 디지털 방송수신기의 내부 구성을 보인 블록도로서, 이에 도시한 바와 같이 종래의 장치와 동일하게 구성된 장치에서 본 발명 디지털 방송수신기의 신호 입력포트 선택 방법을 설명한다.FIG. 1 is a block diagram showing an internal configuration of a conventional digital broadcast receiver. As shown in the drawing, a method of selecting a signal input port of a digital broadcast receiver according to the present invention will be described.

도 2는 본 발명 디지털 방송수신기의 신호 입력포트 선택 방법에 대한 동작 순서도로서, 이에 도시한 바와 같이 사용자가 외부 입력 선택키를 누르면 다음 입력포트로 전환하고 이 입력포트에 A/V 신호가 검출되는지를 판단하여 검출되면 상기 입력포트를 선택하는 제1단계(S1~S4)와; 상기 제1단계(S1~S4)에서 전환한 입력포트에 A/V 신호가 검출되지 않으면 이 입력포트가 마지막 입력포트인지를 판단하고 마지막 입력포트가 아니면 상기 입력포트의 다음 입력포트로 전환하는 제2단계(S5, S2)와; 상기 입력포트가 마지막 입력포트이면 표시부의 화면에 유효한 A/V 신호가 없음을 표시하는 제3단계(S6)로 이루어진 것으로 본 발명의 일실시예를 설명한다.FIG. 2 is a flowchart illustrating a method of selecting a signal input port of a digital broadcast receiver according to the present invention. As shown in FIG. 2, when a user presses an external input selection key, the user switches to the next input port and checks whether an A / V signal is detected at the input port. Determining and determining the input port (S1 to S4); If the A / V signal is not detected at the input ports switched in the first step (S1 to S4), it is determined whether the input port is the last input port, and if not the last input port, switching to the next input port of the input port. Two steps (S5, S2); When the input port is the last input port, an embodiment of the present invention will be described as having a third step S6 of indicating that there is no valid A / V signal on the screen of the display unit.

사용자가 외부 입력 선택키를 누르면 디지털 방송수신기는 A/V 스위치를 조작하거나 신호처리기에 입력되는 A/V 신호를 순차적으로 전환할 때 전환되는 입력포트에 입력되는 A/V 신호가 검출되는지를 판단하여 있으면 이 입력포트를 선택한다. (A/V 신호가 입력포트에 입력되는지를 검출하기 위해 동기 검출기에서 동기 신호가 출력되는지를 판단하는 방법이 사용될 수 있다.)When the user presses the external input selection key, the digital broadcast receiver determines whether the A / V signal input to the switched input port is detected when the A / V switch is operated or the A / V signal sequentially input to the signal processor is detected. Select this input port. (A method of determining whether a sync signal is output from a sync detector may be used to detect whether an A / V signal is input to an input port.)

이때, 상기 입력포트에 A/V 신호가 검출되지 않으면 디지털 방송수신기는 이 입력포트가 마지막 입력포트인지를 판단하고 마지막 입력포트가 아니면 다음 입력포트로 전환하고 이 입력포트에 A/V 신호가 검출되는지를 판단하여 이 입력포트를 선택할지를 결정한다.At this time, if the A / V signal is not detected at the input port, the digital broadcast receiver determines whether the input port is the last input port, and if it is not the last input port, switches to the next input port and detects the A / V signal at this input port. Determine whether to select this input port.

여기서, 상기 입력포트를 마지막 입력포트로 판단하면 디지털 방송수신기는 표시부의 화면에 유효한 A/V 신호가 없음을 표시한다.In this case, when the input port is determined as the last input port, the digital broadcast receiver displays that there is no valid A / V signal on the screen of the display unit.

따라서, 디지털 방송수신기는 A/V 신호가 입력되는 입력포트에 대해서만 순차적으로 입력포트를 전환한다.Therefore, the digital broadcast receiver sequentially switches input ports only for the input ports to which the A / V signals are input.

이상에서 상세히 설명한 바와 같이, 본 발명은 외부 신호 선택키가 눌릴 때 A/V 신호가 검출되는 입력포트에 대해서만 순차적으로 전환하므로 사용자는 원하는입력포트를 빠르고 쉽게 선택하는 효과가 있다.As described in detail above, the present invention has an effect of quickly and easily selecting a desired input port because the user sequentially switches only to the input port where the A / V signal is detected when the external signal selection key is pressed.

Claims (1)

사용자가 외부 입력 선택키를 누르면 다음 입력포트로 전환하고 이 입력포트에 A/V 신호가 검출되는지를 판단하여 검출되면 상기 입력포트를 선택하는 제1단계와; 상기 제1단계에서 전환한 입력포트에 A/V 신호가 검출되지 않으면 이 입력포트가 마지막 입력포트인지를 판단하고 마지막 입력포트가 아니면 상기 입력포트의 다음 입력포트로 전환하는 제2단계와; 상기 입력포트가 마지막 입력포트이면 표시부의 화면에 유효한 A/V 신호가 없음을 표시하는 제3단계로 이루어진 것을 특징으로 하는 디지털 방송수신기의 신호 입력포트 선택 방법.A first step of switching to a next input port when the user presses an external input selection key and determining whether an A / V signal is detected at the input port and selecting the input port if detected; A second step of determining whether the input port is the last input port if the A / V signal is not detected in the input port switched in the first step, and switching to the next input port of the input port if it is not the last input port; And a third step of displaying that there is no valid A / V signal on the screen of the display unit when the input port is the last input port.
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