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| Number | Title | Issue Date |
| 4694414 | Digital delay interpolation filter with amplitude and phase compensation A digital input signal to be delayed is applied to a two-point linear interpolation filter which imparts delay to the signal proportional to the value of a delay control signal. Errors in both the amplitude and the phase of the delayed signal are minimize... | 09/15/1987 |
| 4685002 | Slow motion television system having variable interlace A slow motion system includes a variable interlace constant line-rate video camera, a variable speed recorder and a line-rate converter connected in cascade. During slow motion shooting the camera interlace ratio is increased, the recorder playback speed ... | 08/04/1987 |
| 4683498 | Compatible wide-screen television system camera A solid-state imager for a television camera which generates a compatible wide-screen signal, i.e., a wide-screen signal with compressed left and right edge portions for each television line. The solid-state imager includes photosensitive picture elements... | 07/28/1987 |
| 4680632 | Television display system with flicker reduction processor having burst locked clock and skew correction A speed-up memory doubles the field rate of a video input signal by repeating each field to reduce flicker when the double field rate signal is displayed. Read/write clocks for controlling the memory are locked to the color subcarrier of the video input s... | 07/14/1987 |
| 4677484 | Stabilizing arrangement for on-screen display A television receiver includes apparatus for stabilizing an on-screen character display by which the deflection signal source is controlled for operating in a free-running mode, substantially unaffected by signal variations on the sync input line, rather ... | 06/30/1987 |
| 4677483 | Interpolation filter with motion compensation A progressive scan receiver includes a frame interpolation filter for generating added lines for display in a given field from a video input signal by interpolation from corresponding elements of immediately preceding and following fields. A second filter... | 06/30/1987 |
| 4677482 | Dual mode progressive scan system with automatic mode switching by image analysis The line rate of a video input signal is doubled for display in progressive scan fashion by dual mode processor which generates added lines for the display by interpolation when displaying normal television pictures and by replication (repeating lines) wh... | 06/30/1987 |
| 4673978 | Progressive scan processor with plural frequency band interpolation A speed-up circuit time compresses and interlaces field delayed and interpolated lines of a video input signal for display in progressive scan fashion. The interpolated lines are produced by adding low and high frequency components derived from the video ... | 06/16/1987 |
| 4672445 | Progressive scan processor employing interpolation in luminance channel controlled by a motion signal and a vertical detail representative signal A frame comb filter separates a luminance signal from a composite video input signal for display on every other line of a progressively scanned display. The filter includes a tap for providing a field delayed luma signal and an interpolator for providing ... | 06/09/1987 |
| 4672443 | Compatible wide screen television system with image compressor/expander A wide aspect ratio television system includes memories for storing and recovering a video input signal in response to read and write clock pulses, respectively. Write clock pulses are deleted to compress edge regions of a wide aspect ratio input signal a... | 06/09/1987 |
| 4663659 | Video signal scrambling system employing full line reversal and double burst coding A memory reverses the sequence of samples of selected lines of a composite video input signal without separating the color burst and chrominance components of the lines thereby preserving chroma-burst phase integrity of scrambled lines. A burst inserter a... | 05/05/1987 |
| 4661862 | Differential PCM video transmission system employing horizontally offset five pixel groups and delta signals having plural non-linear encoding functions A wide-aspect-ratio HDTV signal having 1600 luminance pixels/32 μS line and 980 lines/frame is data reduced by deleting odd pixels of each line of TV field #1 and even pixels of each line of TV field #2 to produce 800 pixels per line, and is further data... | 04/28/1987 |
| 4661850 | Progressive scan television system with interlaced inter-field sum and difference components A progressively scanned video signal is encoded into temporal sum and difference components for transmission. The sum signal is temporally filtered, decimated and time expended to be compatible with interlaced receivers. The difference signal, also tempor... | 04/28/1987 |
| 4641188 | Progressive scan display system employing line and frame memories A receiver includes a line store progressive scan processor and a frame store progressive scan processor for doubling the line rate of a video input signal for display. The video input signal includes an identifying signal signifying whether the fields th... | 02/03/1987 |
| 4641186 | Motion detector that extracts motion information from sidebands of a baseband television signal A motion detector for detecting motion in a picture contained in a television signal includes a filter that extracts a portion of the frequency spectrum of the television signal. The amplitude of the sidebands of the television signal in this portion of t... | 02/03/1987 |
| 4639763 | Interlace to non-interlace scan converter for RGB format video input signals A speed-up memory converts interlaced RGB input signals to double line-rate (progressive scan) form. A vertical detail signal is derived from the RGB input signals before or after speed-up and a vertical peaking signal is derived from the detail signal. D... | 01/27/1987 |
| 4631584 | Transmission of reduced resolution picture edge information using horizontal blanking period A television system for generating a composite video signal for an image having extended aspect ratio such as 5:3, and for displaying such composite video signal in a television image area having the same extended aspect ratio. The horizontal blanking int... | 12/23/1986 |
| 4630098 | Progressive scan display system with correction for non-standard signals A double scanning receiver includes a video speed-up memory with read and write clocks locked to multiples of burst. Visible artifacts tend to be produced when displaying non-standard video signals (e.g., from a VCR, game, computer, etc.) due to skew of t... | 12/16/1986 |
| 4623925 | Television receiver having character generator with non-line locked clock oscillator A character generator in a receiver provides a character signal in raster scan form for display with a received video signal. An oscillator, not synchronized with the horizontal synchronizing component of the video signal, supplies a clock signal to the g... | 11/18/1986 |
| 4623913 | Progressive scan video processor A digital video signal processing circuit generates interlaced luminance and chrominance signals from interlaced composite color video signals. The interlaced luminance signal contains vertical detail information without peaking. Each of two progressive s... | 11/18/1986 |
| 4622577 | Decoder for extracting a 4:3 aspect ratio signal from a high definition television signal In a television receiver, a demultiplexer for a high definition multiplexed analog component television signal provides samples of each component signal. A group of samples for each component signal is selected according to the aspect ratio of the televis... | 11/11/1986 |
| 4616251 | Progressive scan television system employing a comb filter A flat-field television image having reduced visibility of horizontal scan lines is generated by receiving first and second fields of interlaced video and progressively generating a scanned image within a time for one incoming field. The progressive scann... | 10/07/1986 |
| 4612567 | Television receiver using non-interlaced scanning format with vertical detail enhancement and motion compensation The television receiver displays the picture information of an interlaced signal, such as a baseband NTSC signal, in a non-interlaced scanning format. The NTSC signal is comb filtered in a line comb filter to extract a luminance representative component s... | 09/16/1986 |
| 4611225 | Progressive scan HDTV system A timing signal generator applies timing signals to a wide aspect ratio (1.77:1) imager in a non-interlaced HDTV system for causing the imager video output signal to exhibit a line rate of 45,000 Hz and a field rate of 60 Hz such that at each step in post... | 09/09/1986 |
| 4608594 | Television receiver using non-interlaced scanning format with motion compensation A television apparatus for displaying the picture information of an interlaced signal, such as a baseband NTSC signal, in a non-interlaced scanning format is described. When no picture change occurs, the picture information of the first and the second fie... | 08/26/1986 |
| 4605963 | Reduction of control bits for adaptive sub-nyquist encoder A digital TV system reduces the data rate by transmitting or recording only bytes representing half of the sampled pixels. Steering bits are also transmitted that tell which of the transmitted bytes are the closest match to the untransmitted bytes so the ... | 08/12/1986 |
| 4605962 | Progressive scan television system with video compression exceeding display line rate A television receiver/monitor includes a progressive scan processor including memories for time compressing a video input signal and doubling the line rate to reduce visible line structure when the double line-rate signal is displayed. The memories are co... | 08/12/1986 |
| 4605952 | Compatible HDTV system employing nonlinear edge compression/expansion for aspect ratio control An HDTV television system is described for use in providing a compatible HDTV signal and an improved NTSC signal generated at a sample rate which conforms with the world studio standard. The system includes an HDTV camera and frame store. Two interlaced H... | 08/12/1986 |
| 4602273 | Interpolated progressive-scan television display with line-crawl artifact filtration A television arrangement produces a progressively-scanned display from signals representing an image scanned by a raster having lines of even fields separated vertically by a distance 2S interlaced with the lines of odd fields. For 2:1 interlace, the line... | 07/22/1986 |
| 4598309 | Television receiver that includes a frame store using non-interlaced scanning format with motion compensation A television apparatus for displaying the picture information of an interlaced signal, such as a baseband NTSC signal, in a non-interlaced scanning format is described. When no picture change occurs, the picture information of the first and the second fie... | 07/01/1986 |
| 4595953 | Television receiver having character generator with burst locked pixel clock and correction for non-standard video signals A television receiver includes a character generator for producing alphanumeric data or graphic symbols to be displayed along with a received video signal. An oscillator, locked to a multiple of the color subcarrier frequency of the video signal, supplies... | 06/17/1986 |
| 4593315 | Progressive scan television receiver for non-standard signals Plural phase detectors in a progressively scanned television receiver measure the phase of the receiver video speed-up memory read and write clocks with respect to the double line-rate horizontal sweep signal of the display. Delay means are provided for d... | 06/03/1986 |
| 4587570 | Stylus kicker having kick energy minimization means A video disc record system having a stylus for recovering information effects kicks which induce limited stylus translations across a disc record surface. Control circuitry responsive to a desired stylus translation are coupled to kicker means for inducin... | 05/06/1986 |
| 4583113 | Progressive scan television display system employing interpolation in the luminance channel A flat-field television image having reduced visibility of horizontal scan lines is generated by receiving first and second fields of interlaced video and progressively generating a scanned image within a time for one incoming field. The progressively sca... | 04/15/1986 |
| 4580163 | Progressive scan video processor having parallel organized memories and a single averaging circuit A processor, for providing a double line-rate video output signal comprising alternating received lines and interpolated lines, comprises three memories. As each line of incoming video signal is stored in one of the three memories, at a given clock rate t... | 04/01/1986 |
| 4577225 | Progressive scan video processor having common memories for video interpolation and speed-up A processor, for providing a double line-rate video signal comprising alternating received lines and interpolated lines, comprises a triad of memories. As each incoming video signal is stored in one of the three memories, the remaining two are read at dou... | 03/18/1986 |
| 4577130 | Pancake motor with insitu wound bobbinless stator coils The stator of a pancake motor comprises porcelianized steel with stator coils secured thereto by means of raised tabs which "entrap" a few turns of the coil between the tab and the surface of the stator. Thermoplastic insulation on the wire, when heated, ... | 03/18/1986 |
| 4575770 | Video disc data systems for interactive applications In a video disc mastering system, player control data is conveyed by a block code having framing and field number bits and data for use by a computer external to the player is conveyed by a convolutional code having no framing bits, having error check bit... | 03/11/1986 |
| 4575754 | Video scrambler system A video signal is scrambled by partitioning the signal into blocks of segments, reversing the sequence of segments in each block, randomly delaying the reversed segments and reversing the sequence of the randomly delayed segments. The double reversal of t... | 03/11/1986 |
| 4575749 | Component companding in a multiplexed component system A transmitter applies luminance and chroma components of a color television signal to a transmission path, such as a VTR or satellite, in amplitude compressed form. To obtain optimum improvement in S/N ratio, different compression laws for the luminance a... | 03/11/1986 |
