KR970058059A - Stereoscopic TV receiver using two screens - Google Patents

Abstract

The present invention relates to a technology for displaying a stereoscopic screen using a dual screen, and in the conventional stereoscopic television receiver, since a stereoscopic screen is displayed through a multiplexer / demultiplexer, the video signal photographed using two cameras is simply displayed. In order to solve this problem, the present invention has a problem in that a flickering phenomenon occurs that causes a difference in color and brightness of an image signal displayed on a right screen, which makes it difficult to see a stereoscopic screen. In 201, one image is taken as a video signal photographed from different angles and processed as a two-screen video signal, and the display preprocessor 203 receives the two-screen video signal transmitted from the transmitter 201 and transmits the original signal. Separated into two screen video signal and output.

Description

Stereoscopic TV receiver using two screens

Since this is an open matter, no full text was included.

2 is an overall block diagram of a stereoscopic television receiver using the two screens of the present invention;

3 is a detailed block diagram of an exemplary embodiment of a transmitter in FIG. 2;

4 is a detailed block diagram of an exemplary embodiment of a double window generator in FIG. 3;

FIG. 5 is a detailed block diagram of an exemplary embodiment of a display preprocessor of FIG. 2;

FIG. 6 is a block diagram illustrating an embodiment of a screen extension unit in FIG.

Claims (6)

Transmitter 201 for processing and transmitting two screen image signals as image signals photographed at different angles from one photographing object, and original two screen video signals by receiving the two screen image signals transmitted from the transmitter 201. And a display unit 205 for displaying the two-screen image signal output from the display preprocessor 203 through a lens to remove interference of left and right eyes. Stereoscopic television receiver using two screens. The baseband color signals R1 / R2, (G1 / G2), and (B1 / B2) of the baseband obtained by photographing the photographing targets at different angles, respectively, the luminance signals Y1 /. Y2) and the dematrix 303A and 303B for converting the color difference signals U1 / U2 and V1 / V2, the luminance signal Y1 / Y2 and the color difference signals U1 / U2, V1 / Modulators 304A and 304B for converting V2 to NTSC / PAL video formats, and digital luminance signals Y1 / Y2 and color difference signals U1 / outputted from the modulation 304A and 304B, respectively. U2), a double window generating unit 305 for converting (V1 / V2) into a video signal of a double screen, and a double window luminance signal DWY processed by the double window generating unit 305 into a double screen. D / A converter and encoder 306 for converting the window color difference signal (DWU / V) into an analog composite video signal, and main clock and subcarrier, horizontal synchronization signal (H_syne) and vertical synchronization signal according to NTSC / PAL mode. (V_sync), even / odd field discrimination Stereoscopic television receiver using a two screen as geoteu characterized by generating hodeung configured as a video timing generator 307 to be supplied to each part of the display the pre-processing unit 203. The digital signal generator 305 of claim 2, wherein the double window generator 305 is configured to output digital luminance signals Y1 / Y2, color difference signals U1 / U2, and V1 / V2 signals output from the modulators 304A and 304B, respectively. Field memories 401A and 401B, and digital luminance signals Y1 / Y2 and color difference signals U1 / U2 and V1 / V2 inputted from the field memories 401A and 401B. The aspect ratio converters 402A and 402B for interpolation / attenuation in the horizontal direction and the interpolation process for the vertical direction again, and the luminance signals Y1 / Y2 respectively output from the aspect ratio converters 402A and 402B. Multiplexer 403A which multiplexes to generate double window luminance signal DWY, and color difference signals U1 / U2 and V1 / V2 which are respectively output from the aspect ratio converters 402A and 402B and doubled. A stereoscopic television receiver using two screens, comprising a multiplexer 403B for generating window color difference signals (DWU / V). The A / D converter 501 of claim 1, wherein the pre-display unit 203 converts an analog composite video signal received from the transmitter 201 into a digital signal of a predetermined bit, and the A / D converter. A digital decoder 502 for receiving the output signal of 501 and restoring the luminance signal and the color difference signal (8-bit: Y, 16-bit: U / V), and the duplication output from the digital decoder 502 A screen expansion unit 503 for converting the video signal into a normal format, and red, green, and blue signals (R1 / R2), (G1 / G2), (for the baseband output from the screen expansion unit 503); The encoder 504 converts B1 / B2 into respective composite video signals CV1 and CV2 and outputs them to the television receiver 204, sampling clock signal and color subcarrier Fsc based on the composite video signal. , Clock generator 505 for generating horizontal and vertical synchronization signals H_sync and V_sync and supplying them to each part of the display preprocessor 203. Stereoscopic television receiver using two screens, characterized in that consisting of. The digital low pass filter 601A or 601B for low-pass filtering the digital luminance signal DY and the color gamut signal U / V supplied from the digital decoder 502, respectively. ), The luminance signal DY_F and the color difference signal DU / V_F filtered by the digital low pass filter 601A and 601B, respectively, to demultiplex the luminance signal Y1 / Y2 and the color difference signal U1 / U2. Demultiplexers 602A and 602B for separating (V1 / V2) and storing them in the field memory 603 and the output signals of the field memory 603 by interpolating the luminance signal with a size doubled in magnitude. Horizontal / vertical luminance signal interpolation unit 604A and horizontal / vertical color difference signal interpolation unit 604B for outputting (I_Y1 / Y2), color difference signals (I_U1 / U2), and (I_V1 / V2), respectively; The output signal of the luminance signal interpolation unit 604A and the horizontal / vertical color difference signal interpolation unit 604B is converted into color signals R1 / R2, G1 / G2, and B1 / B2 of the baseband to convert the display signals ( Exit to 205) In addition, it is composed of a D / A converter and a matrix 605 for generating the composite video signals CV1 and CV2 of the analog baseband and outputting them to the television receiver 204. TV receiver. The small Citi 701L of claim 1, wherein the display unit 205 displays the baseband color signals R1, G1, B1, and (R2, G2, B2) output from the display preprocessor 203. 701R and convex lenses 702L and 702R provided in front of the C701 and 701R in order to eliminate the interference of the image displayed in the small Citi and 701R. Stereoscopic television receiver using two screens, characterized in that consisting of). ※ Note: The disclosure is based on the initial application.