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Broadcast signal outputting device and method

A technology for broadcasting signals and signals, which is applied in the field of broadcasting signal output devices and can solve problems such as difficulty in identifying states for viewers

Inactive Publication Date: 2004-04-14
SAMSUNG ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In such a case, since the broadcast output device of the related art does not transmit an information message such as "unauthorized display" to the display device, it is difficult for the viewer to recognize the current state

Method used

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  • Broadcast signal outputting device and method
  • Broadcast signal outputting device and method
  • Broadcast signal outputting device and method

Examples

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Embodiment Construction

[0023] Hereinafter, a broadcast signal output device according to a preferred embodiment of the present invention will be described in more detail with reference to the accompanying drawings.

[0024] figure 1 is a block diagram showing a broadcast signal output device according to an exemplary, non-limiting embodiment of the present invention. Input unit 110, signal receiver 120, signal decoder 130, digital output terminal 140, first digital / analog converter (DAC) 150, second DAC 155, analog output terminal 160, connection detector 165, OSD processing unit 170 , a storage unit 180 and a control unit 190.

[0025] The input unit 110 is provided to the body of the broadcast signal output device, and includes a plurality of function keys (not shown) for operating the broadcast signal output device. Generally, a user is provided with a remote control unit (not shown) having a plurality of function keys (not shown) in order to remotely input selection commands for controlling on...

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PUM

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Abstract

In a broadcasting signal output apparatus and a method, an OSD processing unit produces a display-lock message if a display of contents is not permitted. A control unit determines whether the decoded video signal includes a copy protection signal for preventing the video signal from being reproduced, and if so, the control unit requests and receives a certification signal from the display device to determine whether the video signal can be transmitted to the display device through the video output terminal. The control unit then determines whether the certification signal corresponds with the reproduction preventing signal, and if it does not, prevents the decoded video and audio signal from being outputted, and controls the OSD processing unit so that the display-lock message is output to the display device (e.g., screen), so that the user knows when the currently received broadcasting signal is not displayed due to copy protection signal.

Description

technical field [0001] The present invention relates to a broadcast signal output device and its method, in particular to such a broadcast signal output device and its method, when viewing of a received signal is locked according to a copy protection signal, the device displays a predetermined message informing that the received signal cannot be displayed broadcast signal. Background technique [0002] In the related art, a digital video signal output from a computer is converted into an analog signal in a graphics card and sent to a monitor. This occurs because a cathode ray tube (CRT) monitor, the most commonly used type of monitor, displays images in analog form. [0003] However, in the case of a liquid crystal display (LCD), the analog signal output from the graphics card should be digitized again before being sent to the LCD monitor because the LCD monitor displays images in digital form. In the related art, such two data conversions result in loss of video signal da...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F21/10G11B20/10H04N5/445H04N5/91H04N5/913H04N7/015H04N7/167
CPCH04N7/163H04N21/4882H04N21/8355H04N21/4627H04N5/913
Inventor 曹殷燮李周衍
Owner SAMSUNG ELECTRONICS CO LTD
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