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"The wireless music box has no imaginable commercial value. Who would pay for a message sent to nobody in particular?"
David Sarnoff, American radio pioneer ; 1921
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| Number | Title | Issue Date |
| 5227863 | Programmable digital video processing system Programmable apparatus for digital processing of video signals from multiple sources converted to digital format to provide real-time multiple simultaneous special video effects and suitable for direct interface to a conventional microcomputer bus such as... | 07/13/1993 |
| 5225824 | Apparatus for generating video special effects In an apparatus for processing an input video signal and generating a special effects video image signal, mapping data representative of the destination upon conversion of each pixel of the input video data is stored in a memory, the mapping data is based... | 07/06/1993 |
| 5208875 | Digital picture signal processing apparatus A digital picture signal processing apparatus has memories each capable of storing digital words representing respective pixels which, when arranged in a two-dimensional array, make up a picture. A read address generator produces a digital read address id... | 05/04/1993 |
| 5206714 | Circuit for controlling the time interval between rotational movements of a plurality of subordinate pictures in a picture-in-picture-type television or VTR system and method therefor There is disclosed a circuit for controlling the time interval between rotational movements of a plurality of subordinate pictures in a picture-in-picture-type television. The inventive circuit includes a microcomputer, a memory for storing the PIP video ... | 04/27/1993 |
| 5198892 | Image input device for generating a video signal for an image reproduction apparatus An image input device for imaging an object includes a process circuit which has a negative/positive inversion function for forming a luminance signal and color difference signals to reproduce a negative image from pixel signals corresponding to the objec... | 03/30/1993 |
| 5196922 | Digital image generation A method of generating a representation of a subsidiary colored image initially contained within a color content of pixels of the image comprises defining a control data array. This control data array (9) defines, for at least those pixels in the image co... | 03/23/1993 |
| 5194952 | Video processing system having improved transition control and display A digital video processing system can generate a linear input signal which is representative of a linear transition between video signals. The system can also generate a non-linear signal representative of a non-linear transition and display the non-linea... | 03/16/1993 |
| 5165070 | Special effect generator with limited read address calculation region A special effect generator is arranged such that read address calculations for special effect processing of an original video image are limited only to the region within which the processed video image is located on the display screen, so that calculation... | 11/17/1992 |
| 5140414 | Video system for producing video images simulating images derived from motion picture film Digital signals are generated and stored for each pixel of a frame of high definition video originated material. A computer reads the digital signals and converts them to binary image data by employing a selected look-up-table program to reassign color an... | 08/18/1992 |
| 5132996 | X-ray imaging system with a sweeping linear detector A linear detector selectively detects successive line images from different angles while the linear detector and a radiation source are rotated about a patient. Radiation-transmission images are generated and detected and converted to computer-grabbed ima... | 07/21/1992 |
| 5126833 | NtSC signal scanning inverting circuit In a device for inverting the scanning direction of NTSC signals, signals for every line are converted into digital signals to be stored, which are read out inversely in time. The digital signals thus read out are transformed into a pulse train (sampling ... | 06/30/1992 |
| 5125041 | Still image processing method for blurring an image background and producing a visual flowing effect A still image processing method which can execute the effective flowing process is provided. In this method, when the flowing process is executed by shifting some or all of the pixels constituting a still image of one image plane in a predetermined direct... | 06/23/1992 |
| 5122866 | NTSC signal scanning inverting circuit In a device for inverting the scanning direction of NTSC signals, signals for every line are converted into digital signals to be stored, which are read out inversely in time. The digital signals thus read out are transformed into a pulse train (sampling ... | 06/16/1992 |
| 5119080 | Video-data processor A video-data processor is disclosed in which a video data produced from the laser disk or the like is processed in four stages of video memory. The video data is first A/D converted and written into a first video memory. Then, the video data in the first ... | 06/02/1992 |
| 5105313 | Method and apparatus for producing slow motion television pictures A system for processing video signals to produce slow motion television pictures is disclosed. A sequence is produced of output frames at broadcast rate by combining a decreasing proportion of pixel values of a first frame (i) stored in a first frame stor... | 04/14/1992 |
| 5063448 | Apparatus and method for transforming a digitized signal of an image The apparatus and method employ a variety of units, including Laplacian filters, rank value filters, edge detectors, gain units and summation units, to transform an input digitized signal of an image, the transformation being carried out for each pixel in... | 11/05/1991 |
| 5063437 | Method and apparatus for processing a color video signal This invention relates to a method and apparatus for processing a color video signal. The processing method separates an input composite color video signal into a luminance signal and chrominance signal, demodulates the separated chrominance signal into c... | 11/05/1991 |
| 5055918 | Pixel image enhancer A simple hardware module for insertion between a source of video signals such as a graphics computer or a VCR, and a video display device such as a TV monitor, for applying a shading effect to two-dimensional graphics for the purpose of simulating a depth... | 10/08/1991 |
| 5053762 | Page turn simulator An apparatus and method for simulating a partially turned page on a video screen using a combination of linear and nonlinear picture partitioning. Multiple variable boundary lines are defined for separating areas on the television screen in which differen... | 10/01/1991 |
| 5047857 | Television system with zoom capability for at least one inset picture A television system including a memory for storing subsampled fields in different sectors corresponding to respective small pictures of a rectangular multi-picture array, includes apparatus for expanding the subsampled fields, preferably to full-screen si... | 09/10/1991 |
| 5031036 | Electronic endoscope apparatus simultaneously displaying an original picture image and special picture image on a single displaying picture surface For a picture image signal imaged by an imaging device, a first signal processing circuit displays an original picture image/contracted original picture image and a second signal processing circuit makes a special picture image processed as an outline enh... | 07/09/1991 |
| 5010407 | Video effects system with recirculation video combine and output combine A video effects system having a video channel with a recirculating loop for incoming video including means for processing or cutting the video signal during each recirculation, and separately processing video information from the recirculation loop to a c... | 04/23/1991 |
| 5008755 | Digital video special effect system A digital video special effect system for merging or replacing a first video image with a second video image. A first special effect means receives digital video information relating to a first picture sequence and transitions can be implemented in order ... | 04/16/1991 |
| 4994912 | Audio video interactive display A method and apparatus for synchronizing two independent rasters, such that a standard TV video and a high resolution computer generated graphics video may each be displayed on a high resolution graphics monitor. This is accomplished utilizing dual frame ... | 02/19/1991 |
| 4987489 | Apparatus for generating an interlaced slow motion video output signal by spatial and temporal interpolation In a slow motion video generation apparatus; successive fields of an input video signal are stored in field stores, a spatial interpolator spatially interpolates between lines of a field selected from those stored in the field stores to produce a spatiall... | 01/22/1991 |
| 4979021 | Optical chromakey field A method and apparatus for causing a video camera to produce a video signal to selectively cue special effects, comprising an optical chromakey field including a transparent assembly an illumination apparatus. The transparent assembly is placed in the fie... | 12/18/1990 |
| 4974083 | Recirculating special effects video framestore A video special effects mixer including an improved recirculating frame store is disclosed. The mixer receives several inputs one of which is from the recirculating frame store and provides several outputs one of which goes to the recirculating frame stor... | 11/27/1990 |
| 4965844 | Method and system for image transformation A method of transforming an input video image data onto a three-dimensional surface is disclosed which comprises the steps of defining the three-dimensional surface, providing mapping data for transforming the input video image data onto the surface, stor... | 10/23/1990 |
| 4963977 | Apparatus for generating a video signal representing a field of spatially varying color Video effects apparatus comprises a wipe generator for generating a wipe signal and a matte generator for generating a matte signal. The matte generator receives the wipe signal and the color represented by the matte signal is dependent on the wipe signal... | 10/16/1990 |
| 4956872 | Image processing apparatus capable of random mosaic and/or oil-painting-like processing An image processing apparatus in which a pixel of first image data is designated, a predetermined pattern is generated on first image data in accordance with the position of the designated pixel, the coordinates of each pixel in the predetermined pattern ... | 09/11/1990 |
| 4951144 | Recursive video blur effect A recursive video blur effect is obtained by inserting a lowpass filter into a recursive feedback loop. Each pass of an output video signal through the recursive feedback loop successively smears the image represented by the video signal so that, when com... | 08/21/1990 |
| 4947256 | Adaptive architecture for video effects An adaptive architecture for video effects allows a transformed image from a digital video effects (DVE) system to be inserted at any desired point along a video path through a production switcher while maintaining strict timing reqirements between the di... | 08/07/1990 |
| 4947253 | Brightness modulator for closed loop compensation of black level A contrast control circuit develops a video gain control signal for continuously varying the video gain of a video signal to adjust the contrast of the video signal and limit beam current. The contrast control circuit may comprise an auto contrast control... | 08/07/1990 |
| 4935816 | Method and apparatus for video image film simulation Video signals from pre-recorded video tape or a video camera are received by the present invention and processed to provide the appearance of a motion picture film recorded image. The output of the invention may be provided directly for television broadca... | 06/19/1990 |
| 4918530 | Processing of video image signals A video image processing system for generating so-called "multi-freeze" digital video effects comprises a frame store (14) within which an image signal can be stored for application to a combining circuit (4) together with a background image signal (1) pr... | 04/17/1990 |
| 4907072 | Mosaic picture generation circuit A mosaic picture generation circuit for reproducing a color television signal in a mosaic fashion on a television display comprises a circuit for writing an analog-to-digital converted signal of a composite video signal in a memory, a circuit for reading ... | 03/06/1990 |
| 4897726 | Method and apparatus for interacting with television images Apparatus for use with a standard television (TV) receiver for superimposing information or images over portions of the broadcast scene. Synchronization signals are generated by locking onto the horizontal sweep electromagnetic interference (EMI) generate... | 01/30/1990 |
| 4891715 | Digital video signal processing with cut editing feature A method of and apparatus for processing a digital video signal to effect cut editing is disclosed. The method comprises storing a segment of an input digital video signal in a random access memory, the digital video signal being repetitively written in t... | 01/02/1990 |
| 4888643 | Special effect apparatus A special effect apparatus for use in production of a television program or the like, including a latch circuit to obtain delayed video data by delaying input video data for a predetermined time. The input video data and such delayed video data are output... | 12/19/1989 |
| 4882622 | Silhouette cutting apparatus A silhouette cutting apparatus includes a two-dimensional image scanner for reading a color separation film, a frame memory for storing a read image signal, a CRT display for displaying an image of any color separation film selectively output from the fra... | 11/21/1989 |
