Weitbruch
Sebastian Weitbruch, Kappel DE
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20080310824 | Method and device for encoding video levels into subfield code words - The invention relates to a method and a device for encoding the video level of a pixel of a picture into a subfield code word in a display device. It can be applied to every display device using a PWM (Pulse Width Modulation) technology and subfields for displaying video picture. The bits of the subfield code word are computed recursively one after the other from the bit having the most significant weight to the bit having the least significant weight. According to the invention, for determining the state of a bit of the subfield code word, a first threshold and a second threshold is associated with said bit, said second threshold being greater than said first threshold, and the video level to be encoded by this bit and its following bits in the subfield code word are compared to the first and second thresholds. If the video level is lower than the first threshold, a state “OFF” is allocated to the bit. If the video level is greater than the second threshold, a state “ON” is allocated to the bit and if the video level is lying between the first and second thresholds, a state “ON” is allocated to the bit according to a predetermined criteria. | 12-18-2008 |
Sébastien Weitbruch, Niedereschach / Kappel DE
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20100157152 | Display device with feedback elements and method for monitoring - A display system including a plurality of display units shall be supervised as to its proper functioning as well as the right content to be displayed. Therefore, there is provided a display device and a corresponding method for monitoring the presentation of a video signal on a display screen having a plurality of screen drivers. A mark signal is added to the video signal and a mark ( | 06-24-2010 |
Sébastien Weitbruch, Nidereschach/kappel DE
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20100321582 | METHOD OF ESTIMATING MOTION BETWEEN TWO VIDEO FRAMES - The invention relates to a method of estimating motion between two video frames. According to the invention, the motion estimation is done by using first one motion estimation in the horizontal direction and then one motion estimation in the vertical direction. Preferably, a plurality of motion estimations in the horizontal direction are used alternately with motion estimations in the vertical direction. It allows reducing the complexity of the estimation. | 12-23-2010 |
Sébastien Weitbruch, Niedereschach / Kappel DE
Patent application number | Description | Published |
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20100157152 | Display device with feedback elements and method for monitoring - A display system including a plurality of display units shall be supervised as to its proper functioning as well as the right content to be displayed. Therefore, there is provided a display device and a corresponding method for monitoring the presentation of a video signal on a display screen having a plurality of screen drivers. A mark signal is added to the video signal and a mark ( | 06-24-2010 |
Sébastien Weitbruch, Niedereschach/kappel DE
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20110206298 | Method for evaluating video quality - A method for evaluating video quality of a video stream comprising the steps of | 08-25-2011 |
Sébastien Weitbruch, Niedereschac/keppel DE
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20110242067 | MULTII-SCAN ANALOG SUB-FIELDS FOR SAMPLE AND HOLD DISPLAYS - An addressing method for sample and hold displays suitable for multi-scan applications (supporting several frame rates) shall be provided. Thus, there is disclosed a method for displaying a picture on a display screen including the steps of providing an input signal including a sequence of plural frames, each corresponding to a single picture, temporally dividing each frame having a frame duration into sub-fields and controlling a display element of the display screen on the basis of the sub-fields. The number and/or duration of sub-fields of each frame is automatically adapted to the frame duration of the frame. Furthermore, the amplitude of a sub-field controlling signal corresponding to the last subfield of each frame may be automatically adapted to the frame duration of the frame. Such display methods provide for a high grayscale quality and linearity even if the frame rate is not stable nor well-defined. | 10-06-2011 |
Sébastien Weitbruch, Nidereschach/kappel DE
Patent application number | Description | Published |
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20100321582 | METHOD OF ESTIMATING MOTION BETWEEN TWO VIDEO FRAMES - The invention relates to a method of estimating motion between two video frames. According to the invention, the motion estimation is done by using first one motion estimation in the horizontal direction and then one motion estimation in the vertical direction. Preferably, a plurality of motion estimations in the horizontal direction are used alternately with motion estimations in the vertical direction. It allows reducing the complexity of the estimation. | 12-23-2010 |