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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 |
| 5028999 | Source encoder for video pictures having a quantizer whose stepsize is controlled in an incremental manner The source encoder for video pictures described includes a preprocessing unit (PP) which supplies block-sequentially the data of a video picture. The video picture is then transferred to an encoding unit (C) via a controllable switch (S). The encoding uni... | 07/02/1991 |
| 5025497 | Facsimile apparatus connected to data communication network having time-saving capability A data transmitting apapratus has: a plurality of terminals such as image readers, each for reading original image data and transmitting the image data; a memory for storing the image data from the terminals; a frame processor for producing the frame data... | 06/18/1991 |
| 5001560 | Method and apparatus employing adaptive filtering for efficiently communicating image sequences A method and apparatus for decoding and receiving a sequence of image frames employ selectively a measure of motion displacement for generating a motion compensated image and filter selection data. The motion compensated image, together with an error sign... | 03/19/1991 |
| 4989085 | Apparatus for remote verification and control of close circuit television cameras A closed circuit television apparatus comprises a plurality of transmitters each including a remote-controlled television camera for generating video signals to a central supervisory station and a circuit for generating first code signals corresponding to... | 01/29/1991 |
| 4989086 | Ultra wide field-of-regard multispectral imaging radiometer An imaging radiometer for scanning an area of interest from a platform moving in an orbital trajectory comprises at least one moving scanning mirror directed toward the area of interest. The mirror produces a changing scan area image representing a portio... | 01/29/1991 |
| 4979033 | Stereoscopic video system and method with field synchronization and intensity control Stereoscopic video system and method in which left and right images are displayed during alternate fields of a video picture frame. The equalization pulses occurring during the vertical blanking interval at the outset of each field are counted to identify... | 12/18/1990 |
| 4974084 | Method and apparatus for picture motion measurement Television pictures are divided up into a number of regions and corresponding regions for two pictures are correlated to produce motion vectors at an output connectrion (2) of a motion vector generator (1) which also at an output connection (4) produces s... | 11/27/1990 |
| 4967270 | Lidar system incorporating multiple cameras for obtaining a plurality of subimages An improved imaging light detection and ranging (lidar) system is presented which provides variable time delay range gating across a selected image. Variable time delay range gating across an image is accomplished using a plurality of imaging cameras whic... | 10/30/1990 |
| 4963962 | Optical surveillance assembly and camera A covert surveillance camera assembly comprises a dummy sprinkler head for camouflaging a camera. The sprinkler head has a pair of parallel arms and a mirror is mounted in a predetermined position relative to the camera and between the arms of the sprinkl... | 10/16/1990 |
| 4963960 | Electronic endoscope apparatus employing automatic light source control In an electronic endoscope apparatus, a light source such as a xenon lamp is automatically turned off when the endoscope examination is accomplished, under the control of a video signal processing unit. The electronic endoscope apparatus includes a light ... | 10/16/1990 |
| 4962424 | Video airdrop sight apparatus A video airdrop sight apparatus having a video camera which is mounted on a gyro-stabilizes gimbal structure for correction about the pitch and roll axis. The video camera which is positioned in the bottom of a cargo plane provides video signals to a moni... | 10/09/1990 |
| 4962423 | Mark detecting method and apparatus Mark detecting method and apparatus usable, for example, in a semiconductor exposure apparatus such as a stepper for printing a pattern of a reticle upon a semiconductor wafer, for detecting, by using an image sensor, an alignment mark provided on a retic... | 10/09/1990 |
| 4958226 | Conditional motion compensated interpolation of digital motion video Motion digital video is encoded and decoded by a motion compensated interpolation method and apparatus. In accordance with the method, selected frames of the video are interpolated in the decoder with the aid of interpolation correction codes that are gen... | 09/18/1990 |
| 4958225 | Full-search-equivalent method for matching data and a vector quantizer utilizing such method A method for compressing data employing vector quantization is achieved by calculating the norm of an input vector and identifying a reference codebook vector which has a norm which is closest to the norm of the input vector. The distance between the inpu... | 09/18/1990 |
| 4957688 | System for the transmission of video signals with adaptive code word allocation, and also a transmitter and a receiver suitable for the system In a system for the transmission of video signals digitized by means of differential pulse code modulation, the constituent signal words are submitted to a variable-length coding operation. A further bit rate reduction is then realized in that the allocat... | 09/18/1990 |
| 4958224 | Forced correlation/mixed mode tracking system A tracking system 10 utilizes both a correlation processor 18 and centroid processor 20 to generate track error signals. The operator is given the option to initially select track error signals exclusively from the correlation processor 18 at track initia... | 09/18/1990 |
| 4954892 | Buffer controlled picture signal encoding and decoding system A picture signal encoding and decoding apparatus which transmits a digital picture signal by encoding, and receives and decodes an incoming encoded signal comprises a configuration in which a condition not to make a receiving buffer overflow can be contro... | 09/04/1990 |
| 4954891 | Light guided illuminating/sectioning device for sheet inspection system A light source module for use with a multi-camera array in a video surface inspection system includes a first light emitter which extends lengthwise across the entire width of a sheet to be inspected. Light from the first light emitter, which preferably c... | 09/04/1990 |
| 4954886 | Closed circuit television apparatus with a remote control television camera A closed circuit television apparatus comprises a remote-controllable television camera including an image pick-up device for generating a video signal, a plurality of controlling devices each having an operating circuit for generating a plurality of cont... | 09/04/1990 |
| 4953024 | A predictive picture encoding circuit which selectively suppresses and replaces prediction error valves, and a corresponding predictive decoding circuit In a predictive encoding circuit the transmission of prediction errors to the predictive decoding circuit is selectively suppressed and prediction errors having a predetermined value are applied to the prediction circuit in both the encoding circuit and i... | 08/28/1990 |
| 4953023 | Coding apparatus for encoding and compressing video data A difference between an original digital value of a picture element to be encoded and an original digital value of a spatially adjacent picture element of the picture element is determined by a detecting circuit. The video data of the spatially adjacent p... | 08/28/1990 |
| 4951141 | Method of determining the transmission function of a video camera For determining the transmission function of a video camera, a bar pattern is taken in which the width of the bars is selected to be sufficiently small so that their influence on the amplitude and phase response of the electric pulse that is produced upon... | 08/21/1990 |
| 4951142 | Method and apparatus for transmission of synchronization signals between microprocessors in video system In order to couple together vertical-frequency synchronization signals generated by a computer connected to an data transmission system, the synchronization signals are generated by counting the clock pulses. A reference signal is transmitted to the compu... | 08/21/1990 |
| 4951134 | Color tone controller for endoscope A color tone controller for an endoscope which has a converting device, for example, a solid-state image sensor, for converting an observed image into an electric signal which is delivered to a monitor device where an observed image is reproduced. The col... | 08/21/1990 |
| 4951139 | Computer-based video compression system A computer-based video compression system for processing natural information signals, such as video signals or audio signals, for the purpose of forming a compact data file of compressed signals which can be expanded to produce the original information si... | 08/21/1990 |
| 4949174 | Zoom lens thermal imager incorporating a non-pixellated detector A thermal imaging device comprises a non-pixellated detector (3) which includes a component (12), such as a liquid crystal element, having optical properties which vary with temperature. An infra-red lens (1) forms a focused image of a thermal scene on th... | 08/14/1990 |
| 4949181 | Closed circuit television apparatus for remotely controlling television cameras A closed circuit television apparatus for a supervisory system comprises at least one imaging device which includes a remote-controllable television camera for generating video signals, a monitor receiving the video signals and displaying images correspon... | 08/14/1990 |
| 4949172 | Dual-mode TDI/raster-scan television camera system A mode selecting switch (74) selectively interconnects one of an external timing signal from a tachometer (32) and master timing signals from a raster-scan synchronization generator (70) with a sensor line shift timing generator (76). In a time delay and ... | 08/14/1990 |
| 4949169 | Audio-video data interface for a high speed communication link in a video-graphics display window environment An interface architecture for interconnecting a plurality of video display devices together over a high speed digital communication link having limited bandwidth provides at each node for transmitting during a "transmit mode"; (1) sequential pixels of dig... | 08/14/1990 |
| 4949189 | Two-sided document scanning apparatus A two-sided scanning apparatus for reading images which exist on both sides of a document to be read and supplying the read image data to a printer unit which prints front and back side images side-by-side. The apparatus comprises a first line sensor and ... | 08/14/1990 |
| 4949176 | Method and apparatus for DPCM video signal compression and transmission A differential pulse code modulation apparatus comprises an error signal generator for receiving an input video signal comprising successive words representing video samples, and being operative to produce therefrom an error signal of which successive wor... | 08/14/1990 |
| 4949168 | Decoding equalizer A decoding equalizer of high definition television signal transmission mode, such as MUSE, and a subrange-type A/D converter suitable for the equalizer. The decoding equalizer samples input data in equalization at a frequency twice the sampling frequency ... | 08/14/1990 |
| 4947249 | Apparatus in which subsampling and block coding are both employed for coding digital video data An apparatus for coding digital video data represented by respective picture element data determines at least one elementary picture element for each block and predicts values of respective picture element data, whereupon predictive errors are detected fr... | 08/07/1990 |
| 4947248 | Hybrid encoder for video signals comprising a motion estimator and an inter-intraframe encoding selector which comprise a common calculation module A hydrid encoder for video pictures comprising a motion estimator, and an inter-intraframe encoding selector which comprise a common calculation module. Known hybrid encoders for transmitting video pictures comprise a motion estimator and an inter-intrafr... | 08/07/1990 |
| 4947246 | Color endoscope apparatus including color lighting control In a frame sequentially scanning type color endoscope apparatus, a light chopper is employed in conjunction with a xenon lamp. The light chopper is constructed of a disk, three slots formed in a peripheral portion of the disk, and three different color fi... | 08/07/1990 |
| 4945410 | Satellite communications system for medical related images A satellite communications system for transmitting medical related images from one or more remote satellite locations to a central headquarters and then sending back diagnostic analysis from the central headquaters to the one or more remote satellite loca... | 07/31/1990 |
| 4945417 | Method and apparatus for remotely pre-setting closed circuit television camera In a closed circuit television apparatus, a television camera comprises an imaging device for generating video signals, a driver adapted to the imaging device to be rotated in order to change coordinates positions of the imaging device, a detector for det... | 07/31/1990 |
| 4945408 | Three dimensional stereoscopic video system with a single image sensor A three dimensional display system in which a beam of energy is admitted from a single source with the beam reciprocally scanning an object. The reflected energy from the beam is detected and the reflected energy is separated and segregated by the directi... | 07/31/1990 |
| 4943855 | Progressive sub-band image coding system A system for reducing image data redundancies through progressive sub-band coding. The image is separated into a selected plurality of sub-bands, and the sub-band with the largest non-redundant data content is chosen and used to predict the data in the ot... | 07/24/1990 |
| 4943860 | Three-dimensional photographing and three-dimensional playback device by spatial time-sharing method A three-dimensional photographing and three-dimensional playback device by spatial time-sharing method has a taking section having a convex lens, an image pickup screen spaced from the convex lens at a distance equal to the focal length of the convex lens... | 07/24/1990 |
