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.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7355570 | Method of expressing gray level of high load image and plasma display panel driving apparatus using the method In a method of expressing a gray level of a high load image and an apparatus for driving a Plasma Display Panel (PDP) using the method, a load ratio of the input image signal is calculated, and an error diffusion of a lower bit of gray level data corresponding to th... | 04/08/2008 |
| 7221112 | Cathode ray tube display apparatus A cathode ray tube display apparatus having a fly back transformer (FBT) to induce and output high voltage, the CRT apparatus including: a power controller controlling source power input into the FBT; a DC power detector to output a shut-off signal to shut off an op... | 05/22/2007 |
| 6947060 | Image forming apparatus, electron beam apparatus, modulation circuit, and image-forming apparatus driving method An image forming apparatus which performs pulsewidth modulation with a pulsewidth set by counting a clock. Especially, for grayscale level correction by setting the frequency of the clock, the periodic clock is counted, and an output pattern is changed in accordance... | 09/20/2005 |
| 6433829 | Signal processing apparatus for setting up vertical blanking signal of television set The signal processing apparatus for setting a vertical blanking signal of the television set that allows to set the beginning position and end position of a horizontal blanking signal irrespective of the numbers of lines in the vertical synchronous signal... | 08/13/2002 |
| 6169581 | Phase-locked sync stripper A method and circuit to strip the composite synchronization (sync) from a composite video signal is disclosed. This invention utilizes a phase-locked loop and a switchable input operational amplifier to remove the sync portion of the video signal without ... | 01/02/2001 |
| 5969486 | Detecting horizontal blanking time in cathode ray tube devices An apparatus and method are disclosed for generating timing pulses to control various functions in a video monitor including the switching of video amplifiers in cathode ray tube (CRT) devices, the control of the phase and frequency of phase locked loops,... | 10/19/1999 |
| 5932977 | Blanking circuit having a pulse width extension part A blanking circuit generates a blanking signal by using a vertical fly-back pulse and/or an output signal of a vertical IC. The blanking signal is superimposed on a grid control signal obtained from a fly-back transformer and then provided to a grid contr... | 08/03/1999 |
| 5917292 | Controller for applications pertaining to the display of images on cathode-ray tube screens Disclosed is an image display screen controller for the control of a cathode-ray tube. There is produced a blanking logic signal that begins on a leading edge of the frame synchronization square-wave pulse and ends only on the trailing edge of the VFBACK ... | 06/29/1999 |
| 5777685 | Deflection signal pulse shaper circuit An arrangement for reproducing a composite blanking or sync signal includes a vertical deflection circuit having a supply boost stage. A first pulse voltage at a vertical rate is derived from an output signal of the boost stage. The vertical rate, first p... | 07/07/1998 |
| 5493340 | Circuit for displaying screen control states of a monitor A circuit for displaying on the screen a mode frequency and screen control states of a monitor by using OSD letters is disclosed. The circuit delays the R, G, B signals of the OSD IC for a predetermined time until the output signals from the pre-amplifier... | 02/20/1996 |
| 5471251 | Video displaying apparatus capable of displaying a video while forming a blanking region A television receiver has a video muting processing function wherein a blanking added video signal is produced by superimposing on a video signal a blanking signal gradually varying in the width in the time direction and consists of a composite signal in ... | 11/28/1995 |
| 5455634 | Dark level restoring circuit for television receiver A dark level restoring circuit for a television receiver which receives a video signal, clamps a pedestal portion of the video signal to a reference pedestal level by a pedestal clamper, compares the output of the pedestal clamper with a reference dark le... | 10/03/1995 |
| 5382981 | Video muting apparatus The video muting apparatus is provided with a controlling apparatus which calculates the video muting time TM from the correlation between the power feeding time T1 counted by the first counter and the power feed stopping time T2 counted by the second cou... | 01/17/1995 |
| 4814880 | Blanking circuit for use in a display apparatus which has a cathode-ray tube The screen grid of a CRT is connected to a blanking pulse amplifier by means of a resistor and a capacitor. This screen grid is also connected to the anode of a diode. The cathode of the diode is coupled to the ground by means of a ripple-removing capacit... | 03/21/1989 |
| 4716461 | Video signal blanking interval signal conditioning circuit A wideband video signal processing system includes a blanking interval signal conditioning circuit with reduced parasitic capacitance. The circuit has an AC coupling capacitor connected between an input buffer amplifier and an output buffer amplifier. A f... | 12/29/1987 |
| 4668974 | Digital scan converter A digital scan converter having an oscillator providing a clock signal used to scan-convert an input video signal to thereby produce a scan-converted output video signal, an automatic frequency control for controlling the oscillator in synchronism with a ... | 05/26/1987 |
| 4652920 | Video image blanking signal generator A video monitor includes apparatus for generating a horizontal blanking pulse accurately timed with respect to a horizontal image retrace interval. The leading edge of the blanking pulse is derived from a differentiated horizontal oscillator signal which ... | 03/24/1987 |
| 4555722 | Tri-level sandcastle pulse decoder Trilevel sandcastle pulse decoder includes a trio of voltage comparators for comparing incoming sandcastle pulses with reference potentials of respectively different levels. One of the voltage comparators, which is subject to change in operating state in ... | 11/26/1985 |
| 4549202 | Trilevel sandcastle pulse encoding/decoding system A color TV receiver is provided with an encoding/decoding system for a trilevel sandcastle pulse train, exhibiting a middle pulse level during recurring kinescope bias control intervals, and comprising excursions between a base level, a low pulse level, a... | 10/22/1985 |
| 4509079 | Interlace detector The application relates to an interlace detector for a raster beam control circuit, such as in a television or computer display. Under 1:1 interlace conditions, depending on the condition of the logic at the time that the 1:1 interlace is selected, an odd... | 04/02/1985 |
| 4291336 | Composite keying signal generator for a television receiver A circuit for generating a composite keying signal includes a burst gate circuit, a clipping circuit, and a voltage divider, in a color television receiver also including means for deriving horizontal and vertical blanking signals and a horizontal sync pu... | 09/22/1981 |
| 4228464 | Picture display device comprising a field deflection circuit and a field blanking circuit A picture display device is disclosed having a field deflection circuit and a field blanking circuit. A pulse generator is also included in said device and comprises a gate circuit with OR-function to which is supplied a signal originating from the deflec... | 10/14/1980 |
| 4081835 | Blanking circuitry for a television receiver video system A blanking circuit for providing blanking pulses to a video system for a television receiver is disclosed. The blanking circuit is particularly adapted for fabrication in integrated circuit form and can advantageously be incorporated in an integrated circ... | 03/28/1978 |
| 4038687 | Video blanking circuit A video blanking circuit is provided which inserts a system blanking interval signal having controlled leading and trailing edges into a video signal. The blanking signal is combined with a clamped video signal in a first non-additive mixer which also pro... | 07/26/1977 |
| 4028726 | TV receiver raster expansion system A system for enlarging the image on the screen of a cathode ray picture tube by increasing the deflection of the electron beam. Accompanying deterioration in contrast and brightness is reduced by blanking the overscan portions of the raster. In addition, ... | 06/07/1977 |
| 4001502 | Straylight compensation circuit and blanking circuit for same A straylight compensation circuit which corrects for excessive dark current features a blanking circuit to ensure a stable black level without spikes and blanking noise. The video is integrated to provide a measure of the average picture level and is adde... | 01/04/1977 |
