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| Number | Title | Issue Date |
| 7440033 | Vector based motion compensation at image borders The present invention relates to an improved interpolation based on motion compensation. In order to avoid interpolation artifacts in proximity to the image borders, in particular in letterbox type images, each motion compensated image data is subjected to a positio... | 10/21/2008 |
| 7262812 | Method for fine tuned automatic zoom A system and method for fine tuned automatic zooming “in” and “out” a video content stream to adjust for Ratio Mismatches and changes in Pillar Bar size is disclosed. The present invention is particularly applicable to 4:3 video content delivered in a 16:9 v... | 08/28/2007 |
| 7262811 | System and method for automatic zoom A system and method for automatically zooming “in” and “out” a video content stream to adjust for Ratio Mismatches is disclosed. The present invention is particularly applicable to 4:3 video content delivered in a 16:9 video content stream. The present inven... | 08/28/2007 |
| 7239354 | Digital image demodulating apparatus A ratio between an aspect ratio of a digital image signal and an aspect ratio of a display device is converted and a presence image part 2 of digital image data decoded by a digital image signal demodulating part is compressed laterally and is shifted to the ... | 07/03/2007 |
| 7224401 | System and method of dynamic interface placement based on aspect ratio A system for dynamically placing textual elements adjacent a video content, based on aspect ratios, includes means for detecting the aspect ratio of the media player content and the aspect ratio of the display device and determining if there are unused positions of ... | 05/29/2007 |
| 7129992 | Method and system for video display with automatic reframing A system and method are provided for displaying a video composed of images each comprising a predetermined number M of lines and, a predetermined number N of pixels in each line. Values of a predetermined number P of reference pixels for each line of a current image... | 10/31/2006 |
| 7084924 | Method, apparatus, and system for displaying widescreen video images on standard video displays A method, apparatus, and system for displaying widescreen video images on a stand video display is disclosed. Letterboxing, which occurs when a widescreen image is displayed in its entirety on a standard video display, is removed by enlarging the widescreen image an... | 08/01/2006 |
| 7079192 | Letter box line blackener for the HDTV/conventional-analog hybrid system A blackener for letter box lines associated with a HDTV/conventional-analog hybrid television transmission where the blackener counts horizontal sync pulses contained in the HDTV/conventional-analog hybrid television transmission and determines when the HDTV/convent... | 07/18/2006 |
| 7057640 | Method and apparatus for dynamic burnout imprinting protection with shift correction The present invention provides improved burnout imprinting prevention by slowly moving the position of screen content to ensure that no one area of the guns is unused for a long period of time. Optical and/or mechanical elements are provided to redirect the projecte... | 06/06/2006 |
| 6965415 | EPG-conditioned letterbox-to-anamorphic conversion Designed for use with widescreen TVs or high-end TVs with a mode for accommodating anamorphic programs, an EPG client is equipped with an electronic program guide (EPG) and a letterbox-to-anamorphic converter. The EPG client evaluates EPG data to determine whether p... | 11/15/2005 |
| 6956625 | Image processing apparatus and method for realizing panorama/waterglass functions An image processing apparatus and method for realizing panorama/waterglass functions, which are capable of reducing the size of a memory and simplifying memory control, are provided. In order to write a plurality of consecutive pixel data into memory devices, and si... | 10/18/2005 |
| 6947097 | Process for detecting black bars in a video image A process for detecting black bands in a video image within a luminance range corresponding to low luminance values comprises the steps of: calculating, for each line situated in a location in which a black band can be expected to be found if present in said video i... | 09/20/2005 |
| 6678009 | Adjustable video display window A method of generating an adjustable video display window from an on screen display (OSD) bitmap is provided. The adjustable video display window masks undesirable video artifacts from a video display. The method includes generating an image pattern, the ... | 01/13/2004 |
| 6593939 | Image display device and driver circuit therefor An image display device includes a display panel having predetermined numbers of pixels defined in horizontal and vertical directions, respectively, and an interpolated-data generation circuit whereby an expanded image data is produced in such a manner th... | 07/15/2003 |
| 6525778 | Image display unit for displaying undistorted images having different aspect ratios A display unit for displaying an image on a screen having aspect ratio different from a video signal without distorting the image utilizing an effective screen up to the maximum. In which the whole image information in a horizontal cycle of an input video... | 02/25/2003 |
| 6504706 | Presentation device The invention relates to a portable presentation device (1) comprising a container having a lid (3) and a base (4), a first display device (7) and a controller (10) for driving the first display device (7). The portable presentation device is in the form ... | 01/07/2003 |
| 6384864 | Letter-box filtering circuit and method using the same A letter-box filtering circuit and a method of using the same that includes a preprocessing filter circuit and a filtering circuit to reduce or correct the round-off errors generated when displaying an image of 16:9 on a screen of 4:3 in a digital image p... | 05/07/2002 |
| 6340992 | Automatic detection of letterbox and subtitles in video A method and system for processing video signal. The method and system provide for automatically detecting letterboxing in an input video signal, and scaling a desired portion of the video signal to match a given display device, as well as detecting subti... | 01/22/2002 |
| 6331862 | Image expansion display and driver An image display device includes a display panel having predetermined numbers of pixels defined in horizontal and vertical directions, respectively, and an interpolated-data generation circuit whereby an expanded image data is produced in such a manner th... | 12/18/2001 |
| 6330037 | Picture signal processing method for processing a picture signal containing information including main picture portion and non-picture portions A picture signal processing method is provided for processing a picture signal containing information including main picture portion and non-picture portions. This method comprises: detecting boundary portions existing between the main picture portion and... | 12/11/2001 |
| 6262772 | Method and apparatus for preventing display screen burn-in When viewing a 4:3 aspect ratio image on a widescreen display, disturbing black bands appear to the left and right of the displayed image. Similarly, when viewing a letterbox image on a 4:3 aspect ratio display, disturbing black bands appear above and bel... | 07/17/2001 |
| 6262779 | Display apparatus with circuit expanding horizontal retrace interval of horizontal deflection current A display apparatus for a television or computer terminal having a cathode ray tube with a deflection coil. The display apparatus includes a signal processing circuit which compresses a display period in a horizontal scanning period of an input video sign... | 07/17/2001 |
| 6259479 | Letterbox filter apparatus and method A method and apparatus for changing the number of scan lines in a frame of video data to produce an image represented by the video data that corresponds to a desired aspect ratio. The apparatus includes a pair of finite impulse response filters for proces... | 07/10/2001 |
| 6226046 | Video signal discriminating circuit and television receiver A discrimination about a standard screen or a wide screen is performed by a discriminating circuit in accordance with the presence or absence of upper and lower black stripes of a wide screen video signal. A video signal transmitted through a low pass fil... | 05/01/2001 |
| 6208385 | Letterbox image detection apparatus A letterbox image detection apparatus for detecting a letterbox image by detecting a boundary of an image area and a non-image area, so as to display the image area on a full screen according to the detection result but not to display the non-image area. ... | 03/27/2001 |
| 6188449 | Semiwide-screen television receiver A semiwide-screen television receiver which can provide a horizontally extended picture on a screen. The receiver receives and displays on a cathode ray tube (CRT) an image signal having a 12:9 screen aspect ratio (AR), and includes a cathode ray tube hav... | 02/13/2001 |
| 6157414 | Image display apparatus for enlargement or reduction of an image using an interpolation process An image display obtains a high quality enlarged or reduced image, by making the output image almost the same level of the inputted image. An inputted image signal is transmitted to a discrete cosine transformer and transformed to frequency band informati... | 12/05/2000 |
| 6157410 | Processing and display of images retrieved from digital still image files generated from digital moving images To display an image based on image file data generated from moving images, the number of pixels is changed in the horizontal or vertical direction of a display screen by a signal processing operation. Various television broadcast standards and display mod... | 12/05/2000 |
| 6115072 | 16:9 aspect ratio conversion by letterbox method for an MPEG image A method and apparatus for converting a digital video image to a higher aspect ratio format at a decoder by line dropping. For example, conversion from a 4:3 to a 16:9 letterbox format may be achieved. Line dropping for non-anchor pictures (e.g., B-pictur... | 09/05/2000 |
| 6084637 | Decoding and displaying device for coded picture data In a decoding/displaying device, the memory capacity or mapping to B pictures is set in consideration of a decoding waiting period, thereby avoiding the competition between a write-in operation and a read-out operation for a memory. Therefore, the decodin... | 07/04/2000 |
| 6064444 | Picture processing apparatus and processing method A picture processing apparatus and method for enlarging and reducing a picture wherein when a picture is reduced, horizontally adjacent pixel data is supplied from a delaying device to a horizontally interpolating circuit. With the pixel data, a coefficie... | 05/16/2000 |
| 5973749 | Letter-box screen detection apparatus The DC level of the low-frequency component of a horizontal frequency is detected from a video signal by a horizontal low pass filter (LPF) 16d and a DC value detection circuit. In addition, the high-frequency component of the horizontal frequency is dete... | 10/26/1999 |
| 5949494 | Aspect ratio discrimination apparatus and image display apparatus including the same An aspect ratio discrimination apparatus and an image display apparatus which prevent a malfunction in discrimination of a first video signal for exhibition of a normal image and a second video signal for exhibition of a horizontally elongated image. An u... | 09/07/1999 |
| 5881205 | Video image processing to product recorded media A method and apparatus are provided for video signal processing of sequences of digitized images originating from video (10) or film. A field grabber (12) receives the digitized images from the input and identifies the separate fields thereof. An image ma... | 03/09/1999 |
| 5844624 | Television receiver A television receiver includes a picture-display-region discriminating means for discriminating whether or not any picture is displayed on a specific region on a screen of the television receiver, by utilizing a luminance signal of a composite video signa... | 12/01/1998 |
| 5825427 | Image display system The present invention addresses problems of dealing with video formats in both 4:3 and 16:9 aspect ratios by providing an image display system having an aspect ratio between the 4:3 aspect ratio of the standard National Television System Committee (NTSC) ... | 10/20/1998 |
| 5805234 | Television receiver A wide display scream television receiver having a plurality of video display modes, the optimum display mode is automatically selected depending on a kind of material of an input video signal includes a display control for displaying a picture correspond... | 09/08/1998 |
| 5760837 | Video signal compression apparatus for horizontal compression of a video signal A video signal compression apparatus extracts a specific value written in a read only memory at every system clock pulse. The specific value can be varied at every clock pulse. Therefore, for example, only the center cart of a picture can be horizontally ... | 06/02/1998 |
| 5754243 | Letter-box transformation device A read control circuit reads image data, which are stored in a decoding image memory, at a read speed m/n times a display speed. These image data are written to line memories by a write control circuit. A read-address control circuit reads the image data ... | 05/19/1998 |
| 5734434 | Non-linear aspect ratio adaptation An adaptation of an aspect ratio of a picture signal is effected by providing (1) a second derivative (D2) of an expansion factor (EF) in response to at least one constant value (C1, C2), by providing (3-13) a first derivative (D1) of the expansion factor... | 03/31/1998 |
