Class / Patent application number | Description | Number of patent applications / Date published |
348443000 | Involving both line number and field rate conversion (e.g., PAL to NTSC) | 8 |
20090079866 | Video Signal Oblique Interpolating Apparatus and Method - A data interpolation apparatus at intermediate pixels between upper and lower pixels. An upper oblique correlation is calculated between data of an immediate upper pixel and a corresponding lower pixel positioned downward in a maximum correlation direction with respect to the immediate upper pixel. A lower oblique correlation is similarly calculated between data of an immediate lower pixel and a corresponding upper pixel. An interpolation signal is obtained by mixing an oblique pixel sum and a vertical pixel sum, while changing mixing ratio based on a comparison of a vertical correlation, and the upper and lower oblique correlation. When the interpolation signal is constituted without the vertical pixel sum, an interpolation signal with respect to intermediate pixels immediate upward/downward of the corresponding lower/upper pixel is generated by excluding a vertical sum that includes data of the corresponding upper and/or lower pixels. | 03-26-2009 |
20090174813 | WIDE-BAND MULTI-FORMAT AUDIO/VIDEO PRODUCTION SYSTEM WITH FRAME-RATE CONVERSION - A multi-format digital video production system enables a user to process an input video program to produce an output version of the program in a final format which may have a different frame rate, pixel dimensions, or both. An internal production format of 24 fps is preferably chosen to provide the greatest compatibility with existing and planned formats associated with HDTV standard 4:3 or widescreen 16:9 high-definition television, and film. Images are re-sized horizontally and vertically by pixel interpolation, thereby producing larger or smaller image dimensions so as to fill the particular needs of individual applications. Frame rates are adapted by inter-frame interpolation or by traditional schemes, including “3:2 pull-down” for 24-to-30 fps conversions. Simple speed-up (for 24-to-25 conversions) or slow-down (for 25-to-24 conversions) for playback, or by manipulating the frame rate itself using a program storage facility with asynchronous reading and writing capabilities. The step of converting the signal to a HDTV format is preferably performed using a modified upconversion process for wideband signals (utilizing a higher sampling clock frequency) and a resizing to HDTV format frame dimensions in pixels. | 07-09-2009 |
20100079667 | METHOD AND APPARATUS FOR INCREASING THE FRAME RATE OF A VIDEO SIGNAL - A method and an apparatus are disclosed for increasing the frame rate of an input video signal by interpolating video frames between original video frames of the input video signal and inserting interpolated video frames between original video frames of the input video signal to produce an output video signal having a higher frame rate than the input signal. | 04-01-2010 |
20100149412 | SIGNAL TRANSMITTING DEVICE, SIGNAL TRANSMITTING METHOD, SIGNAL RECEIVING DEVICE, AND SIGNAL RECEIVING METHOD - For example, samples included in a frame constituted by a 3840×2160/24P,25P,30P/4:4:4,4:2:2,4:2:0/10,12-bit signal are mapped into first to fourth sub-images specified in the HD-SDI format, in units of two adjoining samples. Thus, it is possible to transmit through a transmission constitution for the HD-SDI format. The signal can be converted into serial digital data permitting a bit rate of 10.692 Gbps or the like and transmitted, and the receiving side can accurately reproduce original data. | 06-17-2010 |
20110069225 | METHOD AND SYSTEM FOR TRANSMITTING AND PROCESSING HIGH DEFINITION DIGITAL VIDEO SIGNALS - A method of transmitting a digital video stream having a plurality of image frames and being characterized by a vertical resolution and a frame rate. A temporal multiplexing operation is applied to the image frames of the video stream in order to generate a compressed video stream having the same vertical resolution and half the frame rate of the video stream. This compressed video stream is then transmitted in lieu of the original video stream. At the receiving end, temporal de-multiplexing and pixel interpolation operations are applied to the frames of the compressed video stream in order to reconstruct the original video stream. | 03-24-2011 |
20110205428 | TRANSMISSION APPARATUS, TRANSMISSION METHOD, RECEPTION APPARATUS, RECEPTION METHOD AND SIGNAL TRANSMISSION SYSTEM - Disclosed herein is a signal transmission apparatus, including: a two-pixel sampling out control section adapted to sample out, from among pixel samples extracted from a class image defined by a 3840×2160/100P, 119.88P, 120P/4:4:4, 4:2:2, 4:2:0/10-bit, 12-bit signal of the UHDTV1 wherein the pixel number of one frame exceeds a pixel number prescribed by the HD-SDI format, two pixel samples adjacent each other on the same line such that the pixel samples on each odd-numbered line of each frame are sampled out to a first sub image and a second sub image from among first to fourth sub images and the pixel samples on each even-numbered line of each frame are sampled out to the third sub image and the fourth sub image; a line sampling out control section; a field sampling out control section; a word sampling out control section; and a readout control section. | 08-25-2011 |
20110234895 | System and Method for Video Downscaling - A system and method for downscaling signal data, where the system includes an antenna receiving video signal data; an analog-to-digital converter coupled to the antenna and converting the received analog signal data to digital signal data; a memory storing video downscaling instructions; and a video downscaling processor, coupled to the memory and the analog-to-digital converter, wherein the video downscaling processor, upon reading the video downscaling instructions from the memory and executing the downscaling instructions: divides the digital video signal data into a plurality of blocks, wherein each block comprises a plurality of pixel elements; and cycles through the plurality of blocks, and for every block in the plurality of blocks, generates a new block, wherein the new block comprises a plurality of new pixels evenly spaced within the new block. | 09-29-2011 |
348444000 | Specified chrominance signal | 1 |
20100026889 | Apparatus, Process and Computer Program for Limiting the Vector Length of Colour Vectors - RGB to NTSC/PAL encoders—as an example—commonly convert red, green and blue colour component signals (RGB) into their corresponding luminance (luma) and chrominance (chroma) signals in the respective standards in order to generate a composite video signal which can be used in connection with television sets and the like. Thereby, roughly spoken, the luminance signal represents the monochrome or black-and-white portion of the composite video signal and the chrominance signal represents the colour portion of the composite video signal. An apparatus | 02-04-2010 |