Did You Know...
...that to encourage use of his new invention, the shopping cart, market owner Sylvan Goldman hired fake shoppers to push the carts around his store in Oklahoma City? Seems his customers were reluctant to give up their hand-carried baskets.
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| Number | Title | Issue Date |
| 5565923 | Apparatus for formatting a digital signal to include multiple time stamps for system synchronization Apparatus for developing synchronization of an intermediate layer of signal such as the transport or multiplex layer of a multi-layered compressed video signal, includes at the encoding end of the system apparatus for including a time stamp reference, suc... | 10/15/1996 |
| 5216671 | High speed bit serial systems A limiting factor in the operating speed of a bit-serial integrated circuit is the stray capacitance associated with interconnections of functional elements on the integrated circuit, which stray capacitance tends to be significantly larger than capacitan... | 06/01/1993 |
| 5196941 | Beam scan velocity modulation apparatus In beam scan velocity modulation (SVM) system for a television receiver, a video signal is applied to a differentiator followed by a limiting differential amplifier. A driver amplifier coupled to the limiting amplifier drives an output stage that supplies... | 03/23/1993 |
| 5177611 | Method and apparatus for canceling quadrature distortion as for video signals having in-phase and quadrature phase components High definition or enhanced television signals include supplementary information which is double-sideband modulated in quadrature with the picture carrier, and passed through an inverse Nyquist filter before being combined with a conventional vestigial si... | 01/05/1993 |
| 5121209 | Sharpness control for a television image A video signal processing system includes a signal interpolator associated with time compression/expansion apparatus. The interpolator is preceded by a high frequency peaking network which responds to a variable control signal representative of a desired ... | 06/09/1992 |
| 5115171 | Raster distortion correction circuit An East-West switching transistor is coupled between a flyback transformer primary winding and a horizontal deflection output transistor circuit to control retrace energy to obtain an East-West modulation of the deflection current amplitude as required fo... | 05/19/1992 |
| 5111120 | Raster corrected vertical deflection circuit Two windings of a flyback transformer in a horizontal deflection circuit are inductively coupled with opposite polarity to a source of horizontal rate retrace pulses. The windings have a common junction coupled to ground. A circuit energized by the retrac... | 05/05/1992 |
| 5060057 | Intraframe processor and luminance-chrominance adaptive separator apparatus A television-type video signal containing main information, and auxiliary information modulating an auxiliary subcarrier having a controlled phase, is applied to a field storage network. First and second adaptive luminance-chrominance separators of the li... | 10/22/1991 |
| 5046164 | Interstitial line generator for an interlace to non-interlace scan converter An interstitial line generator for an interlaced scan to non-interlaced scan video signal converter includes circuitry for examining a plurality of lines spatially and temporally disposed about an interstitial line location and excludes signals having amp... | 09/03/1991 |
| 5045010 | Method of assemblying a tensioned shadow mask and support frame The present invention provides an improved method of assemblying a rectangular tensioned shadow mask wherein the two long sides are welded to two curved frame members paralleling the major axis. The improvement comprises forming two subassemblies of said ... | 09/03/1991 |
| 5041756 | Color picture tube having a tensioned shadow mask and support frame assembly The present invention provides an improvement in a color picture tube having a tensioned shadow mask and support frame assembly. The mask is rectangular, having two long sides paralleling a central major axis thereof and two short sides paralleling a cent... | 08/20/1991 |
| 5038078 | Degaussing coil attachment arrangement A cathode ray tube has a funnel provided with an outer conductive coating that is electrically isolated from an AC mains supply. An insulated degaussing coil is fitted to the funnel against the outer conductive coating and energized by the AC mains supply... | 08/06/1991 |
| 5036293 | Oscillator for use with video signal time scaling apparatus Video signal time scaling apparatus includes a gated oscillator enabled and disabled in synchronism with a line scanning rate and capable of generating an oscillatory signal which is other than a multiple of a line scanning rate. The phase of an oscillato... | 07/30/1991 |
| 5034994 | Single balanced mixer with output filter A balanced mixer and output filter for television receivers and the like is presented. The mixer is followed by a fairly selective bandpass filter to protect the IF amplifiers from first and second adjacent channel signals.... | 07/23/1991 |
| 5033802 | Television enclosure An enclosure for a television receiver is composed of a base member, a cover member and a bezel member which are joined into a stiff triangular enclosure which supports the receiver tube and protects the tube from implosion because of impacts.... | 07/23/1991 |
| 5032917 | Video signal blending apparatus A first video signal component and a second video signal component represent constituent portions of an image to be displayed. An analog signal blending network blends these components together along a boundary region several pixels wide to reconstitute a... | 07/16/1991 |
| 5030881 | Color picture tube with shadow mask having improved aperture border An improved color picture tube includes a mask that has an aperture array including slit-shaped apertures aligned in columns that essentially parallel the minor axis and end at a border of the aperture array. Adjacent apertures in each column are separate... | 07/09/1991 |
| 5031044 | Inset picture centering in a pix-in-pix system A PIP system stores data indicative of the location of the center point of an inset picture with respect to a display screen center point in a memory area of a first size. The inset image data is read out of the memory area beginning with the data stored ... | 07/09/1991 |
| 5028850 | Deflection system with a controlled beam spot A deflection apparatus produces a field gradient that reduces a tendency of a major axis of a beam spot to become elongated at each corner, at each end of a horizontal axis and at each end of a vertical axis of a display screen relative to the beam spot a... | 07/02/1991 |
| 5029005 | Apparatus for the muting of an audio power amplifier in a standby mode In a television receiver apparatus is provided for muting an audio power amplifier having continuous operating supply voltage applied thereto from a standby power supply even when the receiver is in an "off" condition so that spurious noise and hum couple... | 07/02/1991 |
| 5027201 | Motion detection apparatus as for an interlace to non-interlace scan converter A detector for detecting motion in an image represented by a video signal includes delay elements for providing lines of signal from five consecutive fields. Sums of signals from first and second fields are subtracted from sums of signals from third and f... | 06/25/1991 |
| 5027017 | Sync tip clamp circuitry A clamp circuit includes a coupling capacitor connected between signal input and signal output terminals. A constant current sink and a controlled current source are connected to the output terminal. A comparator, coupled to the output terminal via a lowp... | 06/25/1991 |
| 5025496 | Odd/even field detector for video signals In a video signal processing system apparatus for differentiating between video field types includes circuitry for measuring an interval between a vertical signal component and a predetermined transition of a horizontal signal component. Measured values f... | 06/18/1991 |
| 5025309 | Extended definition widescreen television signal processing system An NTSC compatible, single broadcast channel, widescreen EDTV system encodes and decodes a television signal comprising four components: (1) a main, standard format NTSC signal with low frequency side panel image information compressed into the overscan r... | 06/18/1991 |
| 5021872 | Phase locked subcarrier regenerator Apparatus for generating a signal having a predetermined frequency relationship with a subcarrier includes a counter for counting cycles of said subcarrier. Count values from the counter are coupled as address values to a memory circuit. The memory circui... | 06/04/1991 |
| 5021707 | Color picture tube having shadow mask with improved support An improved color picture tube includes a rectangular faceplate panel having two long sides and two short sides. A rectangular shadow mask is suspended at its four corners by support means within the panel adjacent to a cathodoluminescent screen located o... | 06/04/1991 |
| 5020146 | Lossy constant bandwidth tuned circuit An amplifier loaded with a constant bandwidth tuned circuit is provided with an output series coil, and with a resistance in series with the output coil and a subsequent load to provide attenuation at high frequencies for maintaining the total overall gai... | 05/28/1991 |
| 5020139 | Three digit channel entry by use of an extended keypress A channel number data entry system for a television receiver employing a numeric keyboard allows the selection of cable channels having channel numbers greater than 99, without the use of a separate ENTER or 100s key. Specifically, if the leading digit of... | 05/28/1991 |
| 5020140 | Three digit channel entry system A channel number data entry system for a television receiver employing a numeric keyboard allows the selection of cable channels having channel numbers greater than 99, without the use of a separate ENTER or 100s key. Specifically, if a predetermined unus... | 05/28/1991 |
| 5017844 | Disabling arrangement for a circuit operating at a deflection rate Active turn-off or disabling circuits respond to control signals from a control unit which defines the mode of operation of a receiver. In response to a designation of a standby mode of operation the active disabling unit actively disables a pulse width m... | 05/21/1991 |
| 5018090 | Digital interpolation circuitry A sampled data interpolator includes a linear interpolator coupled in parallel with a nonlinear compensation signal path. The nonlinearly processed signals and the linearly interpolated signals are summed to produce interpolated samples. The nonlinear com... | 05/21/1991 |
| 5016092 | Control circuitry for an adaptive multistandard video comb filter A multimode comb filter for comb filtering, e.g., NTSC and/or PAL video signals includes delay means for concurrently providing video signals representing first, second and third adjacent horizontal lines. First and second combining means coupled to the d... | 05/14/1991 |
| 5012154 | Color picture tube having improved shadow mask-frame assembly support An improved color picture tube includes an evacuated glass envelope having a rectangular faceplate panel. The panel includes a shadow mask assembly mounted therein by support means located at peripherally spaced positions within the panel. The support mea... | 04/30/1991 |
| 5010281 | High voltage stabilization circuit for video display apparatus A horizontal deflection circuit output stage generates a retrace pulse in a tertiary winding of a flyback transformer. A flyback pulse that is substantially wider than the retrace pulse is produced in a winding of a second transformer that is coupled in s... | 04/23/1991 |
| 5010271 | Color picture tube having an electron gun with reduced convergence drift A color picture tube includes a screen and an improved inline gun for generating and directing three inline electron beams along separate paths toward the screen. The gun includes a plurality of cathodes and at least six electrodes longitudinally spaced f... | 04/23/1991 |
| 5005201 | Apparatus and method thereof for improvement of stereophonic sound An apparatus and method for improvement of stereophonic sound. A source of stereophonic sound is provided with two internal loudspeakers and external access to the stereophonic signal. A "wall of sound" effect is achieved by coupling of the sterophonic si... | 04/02/1991 |
| 5005074 | Adaptive multistandard video comb filter A multimode comb filter for comb filtering, e.g., NTSC and/or PAL video signals includes delay means for concurrently providing video signals representing three adjacent horizontal lines. First and second combining means coupled to the delay means provide... | 04/02/1991 |
| 5003564 | Digital signal clamp circuitry A digital signal clamp circuit is realized using an adder and an up/down counter. The digital signal is coupled to one input of the adder and the counter output is coupled to a second input of the adder. The up/down counter is enabled to count only during... | 03/26/1991 |
| 5003394 | Dynamic video system including automatic contrast and "white-stretch" processing sections A television system is disclosed including sections for limiting peak white drive to a display device (e.g., of the direct view of projection type) while maintaining relatively high subjective image contrast and brightness. Specifically, the system includ... | 03/26/1991 |
| 5000711 | Method of making color picture tube shadow mask having improved tie bar locations An improved method of making a color picture tube shadow mask includes first constructing an apertured flat mask which is formed into a domed contoured mask. The mask has a rectangular periphery with two long sides and two short sides. The mask has a majo... | 03/19/1991 |
