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| Number | Title | Issue Date |
| 4864404 | Noise reduction circuit of a video signal A noise reduction circuit for use in a video signal recording and/or reproducing apparatus for eliminating noise components from an input luminance signal comprises a high pass filter circuit for extracting a high frequency signal component from the input... | 09/05/1989 |
| 4860112 | Teleradiology system having multiple compressor/expanders A teleradiology system capable of scanning X-ray images and the like and transmitting the scanned images to various locations is disclosed. The images may be compressed for storage or transmission. Compressed images can be transmitted much more quickly an... | 08/22/1989 |
| 4860105 | Noise Reducing circuit of a video signal A noise reduction circuit for a video signal recording and/or reproducing apparatus comprises a high pass filter for extracting high frequency signal component form the input luminance signal, a limiter circuit for limiting the high frequency signal compo... | 08/22/1989 |
| 4858005 | System for encoding broadcast quality television signals to enable transmission as an embedded code The invention provides a system of encoding broadcast-quality television signals to enable their transmission as a embedded code. A preferred embodiment provides a hybrid interpolative/predictive coding algorithm acting on all sampled sites of a television sig... | 08/15/1989 |
| 4858004 | Coder/decoder for time compressed integration system A coder/decoder for a time compressed integration system includes a coder for performing time compressed ingtegration of compressed wide- and narrow-width chrominance signals and a luminance signal having passed through a first phase compensation delay ci... | 08/15/1989 |
| 4858006 | Method and apparatus for establishing a servicing mode of an electronic apparatus In controlling an electronic apparatus, such as, a color television receiver, of the type having signal processing circuits which are individually adjustable in accordance with respective control signals provided by a microcomputer or central processing u... | 08/15/1989 |
| 4855819 | Endoscope imaging system for use with multiple color imaging systems A system comprising a frame sequential type color imaging device, a color imaging device provided with a color filter, an illuminating light outputting device which can output illuminating lights corresponding to these different color imaging devices, a s... | 08/08/1989 |
| 4855824 | Compatible television system with companding of auxiliary signal encoding information An NTSC compatible, single channel widescreen EDTV system encodes and decodes a television signal comprising (1) a main, standard format NTSC signal wth auxiliary low frequency side panel image information compressed into an overscan region thereof; (2) a... | 08/08/1989 |
| 4855833 | Television channel selection apparatus employing multi-picture display An apparatus for selecting one of a number of television channels is operable to be set in a mode whereby an array of miniature pictures corresponding to the respective channels is displayed, with each channel being sequentially selected for a predetermin... | 08/08/1989 |
| 4855820 | Down hole video tool apparatus and method for visual well bore recording An apparatus and method of visually examining the sidewalls of a bore hole include a down hole video tool lowered into the bore hole by means of a cable and winch on the surface. The apparatus includes a wide angle video camera at its lower section. An up... | 08/08/1989 |
| 4855826 | Zone plate signal generator A generator of circular zone plate signals for testing digital television signals, particularly those in circuits conforming with CCIR-Rec. 601, contains counters operating at horizontal and vertical sampling scan frequencies for producing an orthogonal p... | 08/08/1989 |
| 4855831 | Video signal processing apparatus A superimposing video signal represents a superimposing shape. The superimposing video signal and a background video signal are mixed at a varible mixing rate. During an interval where the superimposing video signal corresponds to an edge of the superimpo... | 08/08/1989 |
| 4855825 | Method and apparatus for detecting the most powerfully changed picture areas in a live video signal The invention relates to a conditional replenishment method and apparatus for detecting the most powerfully changed, and for the human eye most important, picture areas in a video image in order to compress the image into a transmission channel which func... | 08/08/1989 |
| 4853771 | Robotic vision system A Robotic Vision System for real time operation based on a luminous fiduciary code located upon a robot and an object the robot is to operate on. The luminescent code, when irradiated, locate the position of the object relative to the robot thus allowing ... | 08/01/1989 |
| 4853773 | Endoscope signal processing apparatus using sequential and synchronous imaging devices The endoscope signal processing apparatus is provided with a first signal processing device processing the signal for a field sequential type imaging device and a second signal processing device processing the signal for a synchronous type imaging device.... | 08/01/1989 |
| 4853784 | Video switcher with independent processing of selected video signals A video switcher comprises a source selector having a plurality of input terminals for connection to a plurality of video sources respectively, and at least two output terminals. At least two processing channels each have an input terminal connected to an... | 08/01/1989 |
| 4853772 | Electronic endoscope apparatus having isolated patient and secondary circuitry This electronic endoscope apparatus comprises an endoscope provided with an imaging apparatus converting a light information of an object to be imaged to an electric signal and a signal processing apparatus processing the output signal of the imaging appa... | 08/01/1989 |
| 4851901 | Stereoscopic television apparatus A stereoscopic television apparatus comprises two image sensors which alternately output image signals respectively corresponding to those of the right and left eyes, a monitor alternately displaying the image signals of the two image sensors as first and... | 07/25/1989 |
| 4851904 | Motion detecting circuit for digital video signal A frame memory stores one-frame data of an input digital video signal and outputs the stored data as a one-frame delayed digital video signal. A first motion data generator receives the input digital video signal and the one-frame delayed digital signal f... | 07/25/1989 |
| 4847686 | Radiological installation using a camera television with low-remanence pick-up element An imaging installation, especially for digital type radiology, comprises a pick-up tube television camera with no remanence or low remanence with a non-linear element producing a remanence of the image signal given by the camera. The remanence varies wit... | 07/11/1989 |
| 4845554 | Automatic light adjusting system for an endoscope using an externally fitter camera In an optical endoscope having an image guide transmitting to the exit end surface an optical image formed by an objective optical system, a video signal of an imaging circuit built in an externally fitted camera is displayed by a displaying device so tha... | 07/04/1989 |
| 4845556 | Video spot detector A non-contacting sensing system for measuring dimensions or determining the position of an object, such as a workpiece in an automated machining process. A small diameter light beam is projected and focused at a predetermined location. A television camera... | 07/04/1989 |
| 4845557 | Field motion suppression in interlaced video displays A field motion suppression technique in interlaced video displays produces a motion suppressed frame without the use of a fixed threshold for motion detection. One of two interlaced fields is selected to remain unchanged, and the other field is examined o... | 07/04/1989 |
| 4845561 | Field interleaving compatible high definition television transmission system In a system for transmitting and receiving a television signal via a transmission channel having at least a transmitting section and a receiving section, the transmitting section including a sampling circuit for sampling each field of the television signa... | 07/04/1989 |
| 4843461 | Over-door interphone system provided with a night-vision monitoring device An over-door interphone system for telephonic communication between a master station unit inside of a house and a remote station unit outside of an entrance door of the house is provided with a night-vision monitoring device. The night-vision monitoring d... | 06/27/1989 |
| 4843465 | Picture transmission system using secondary differential variable sampling rate coding A picture transmission system of the present invention is adapted to code picture data by a variable sampling rate coding system to transmit the same. Picture data are stored in a frame memory (16) of a transmission area so that differential values betwee... | 06/27/1989 |
| 4843468 | Scanning techniques using hierarchical set of curves Conventionally, transmission of television images is performed by Raster scanning. To avoid the problems associated with flyback, and the limiting of Raster scanning to image scanning standards it is proposed to transmit images by scanning along a locus d... | 06/27/1989 |
| 4843459 | Method and device for the display of targets and/or target positions using data acquisition means of a weapons system The invention pertains mainly to a method and a device for the display of targets and/or target positions using the data acquisition means of a weapons system. The device of the present invention can be used to display the target or the direction of the t... | 06/27/1989 |
| 4839727 | Video signal processing apparatus for separating luminance and chrominance signals by means of signal correlation A signal processing apparatus comprising a plurality of video signal correlation detecting devices for detecting the values of video signal correlations in a plurality of ways with respect to the displayed picture, and intermediate value selecting devices... | 06/13/1989 |
| 4839724 | Process for the digital transmission of information A process for the digital transmission of video signals, wherein the signals to be transmitted are coded according to a variable codeword length code, and this code is adapted at time intervals, preferably at regular time intervals, to a statistic of the ... | 06/13/1989 |
| 4837627 | Programmable operating-parameter control appatatus for a television receiver A programmable auxiliary control unit for a television receiver has switch selectable features which enable it the receiver to interface more easily to a variety of signal sources, by controlling the operating parameters of the television receiver. The co... | 06/06/1989 |
| 4835607 | Method and apparatus for expanding compressed video data A processor which expands a compressed video signal is disclosed. The compressed video signal applied to the processor is generated by partitioning a video image into segments and then describing how each segment is filled by using a bilinear equation, th... | 05/30/1989 |
| 4835613 | Transition status display for video switcher A transition status display for a video switcher inserts a single, readable synopsis of a next transition event into a video output signal from the video switcher for display on a monitor. The synopsis is in the form of a window having a line segment repr... | 05/30/1989 |
| 4831435 | Adaptive scanning line converting circuit for a television receiver A circuit and technique for using only a line memory that has small capacity and selecting a proper interpolation filter according to the correlationship of vertical and slanting directions between two scanning lines of input signals. This system performs... | 05/16/1989 |
| 4831447 | Method and apparatus for anti-aliasing an image boundary during video special effects A method of processing a foreground array of sample values, a background array of sample values and a crop array of sample values, which three arrays are coextensive and wherein the crop array represents a geometrical figure associated with a non-zero mul... | 05/16/1989 |
| 4831441 | Scan converter apparatus A scan converter apparatus, for converting an input video signal having a line frequency fH1 into an output video signal having a line frequency of substantially fH2, has means for generating a signal with a line frequency m/n times ... | 05/16/1989 |
| 4827336 | Symbol code generation processing from interframe DPCM of TDM'd spatial-frequency analyses of video signals At a sending station in a digital television transmission system embodying the invention, time-division multiplexing either of the spatial-frequency analyses of the video signals from a television camera or of their interframe DPCM responses, both of whic... | 05/02/1989 |
| 4827343 | Method and apparatus for reducing analog/digital converter requirements in picture-in-picture television circuits In the PIP circuit of a television receiver, the resolution of the analog-to-digital converter is improved by one bit. This is done by adding a dither signal, having an amplitude equal to one-half the least significant bit at the converter output to the a... | 05/02/1989 |
| 4825285 | Hybrid encoder In the hybrid encoder for video signals described the picture elements of a video picture are arranged into equally large data blocks and each newly entered data block, is compared with a data block of the previous video picture by means of a subtractor (... | 04/25/1989 |
| 4825289 | Noise reduction apparatus for video signal A noise reduction apparatus includes a vertical filter for extracting a component having a high vertical frequency from an input video signal, a two-dimensional filter for extracting a component having a low vertical frequency and a high horizontal freque... | 04/25/1989 |
