William F. Semple, a dentist, was awarded the first US Patent on chewing gum in 1869. His recipe contained powdered chalk.
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| Number | Title | Issue Date |
| 7142218 | Image display device and electronic apparatus using same, and image display method of same An image display device of the present invention is provided with a liquid crystal display panel for displaying an image in accordance with an input of a chrominance signal, a sensor for sensing light characteristics of external light, and a chrominance signal conve... | 11/28/2006 |
| 7039294 | Method and apparatus for modifying the effects of color burst modifications to a video signal In the known color stripe process for preventing recording of video signals, the color burst present on each line of active video is modified so that any subsequent video tape recording of the video signal shows variations in the color fidelity that appear as undesi... | 05/02/2006 |
| 7023993 | Signal reproducing/recording/transmitting method and apparatus and signal record medium for use with signals featuring a multiple-phase color burst A signal reproducing apparatus for prohibiting copying or unauthorized use. The apparatus includes a copying management information decision circuit 19 for discriminating the state of the copying management information read out from each header of a data sect... | 04/04/2006 |
| 6959046 | Resynchronization method for decoding video The present invention relates to a method of resynchronization that attempts to enable a resynchronization of a compressed video data signal received by a decoder, after a transmission error has been detected in said compressed video data signal. The method o... | 10/25/2005 |
| 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 |
| 6518961 | Adapter device for separating synchronizing signal from sync-on-green video signal and color display apparatus with the same An adapter device, which is connected between a host for outputting a sync-on-green (SOG) signal and a conventional display monitor, separates a sync signal from the SOG signal, and supplies red, blue, and SOG signals to a color display monitor together w... | 02/11/2003 |
| 6292231 | Color signal generation circuit A reference signal having either twice or four times the frequency of a color burst signal (2fsc or 4fsc) is divided into a plurality of divided signals, each having the same frequency as that of the color burst signal, or an fsc frequency. In addition, a... | 09/18/2001 |
| 6271879 | Controlling and detecting alignment of composite video color frames An apparatus and method for controlling and detecting the alignment of a color frame phase from a composite analog video signal decodes the composite analog video signal to produce a component digital video signal and to generate a color frame signal that... | 08/07/2001 |
| 6043845 | Video capture and compression system and method for composite video A system and method is disclosed for compressing and decompressing composite video signals. In one type of operation a composite video signal (e.g., an NTSC signal) is sampled and the samples compressed into 3 or 5 bit composite values, depending on the s... | 03/28/2000 |
| 6037989 | Still image transmitting device A still image transmitting device including a control unit, a demodulating unit for converting 25-bit data reproduced from a video tape into 24-bit data, an error correction unit that receives the 24-bit image data and corrects errors caused by the video ... | 03/14/2000 |
| 5982416 | Image processing method and apparatus An image processor which provides a color space conversion characteristic suitable for an image includes a transfer unit which transfers digital color image data representing a desired image input by an image input unit and having a color space depending ... | 11/09/1999 |
| 5812731 | Signal processing apparatus for adding synchronizing signal to horizontal and vertical blanking periods of a color difference signal A signal processing circuit for adding a synchronizing signal to a predetermined signal, wherein the synchronizing signal oscillates to one side from a reference level of the synchronizing signal, and wherein the predetermined signal oscillates to one sid... | 09/22/1998 |
| 5351093 | Phase alternating line video signal processing apparatus Signal processing apparatus comprises a chrominance subsampler (10) for sampling the U and V components of a PAL video signal in response to an enable signal. A counter (30) responsive to the horizontal synchronization component of the PAL video signal ge... | 09/27/1994 |
| 5168349 | Synchronization of color carriers of different color TV standards having the same line frequency When two color television standards prescribe the same horizontal scanning frequency but different color carrier frequencies, one of them, for example, requiring a frequency providing a one-half line offset to the horizontal scanning frequency (NTSC Stand... | 12/01/1992 |
| 5091774 | Method and apparatus for providing sync on R-G-B video signals A method and apparatus for detecting the presence of a synchronization signal in at least one of a red, green and blue video input signal is disclosed, that permits signal processing to occur on the red, green and blue video input signals after the synchr... | 02/25/1992 |
| 5006932 | Apparatus for processing a video signal A composite video signal each line of which comprises a line synchronizing pulse, a front and a back porch and a vision portion, the synchronizing pulse of which may contain a burst of pulsed additional information is applied to an input terminal (1) whic... | 04/09/1991 |
| 4719505 | Color burst regeneration A system for regenerating a standard-length color burst signal from a less-than-standard-length color burst information signal of a given frequency and phase. The system includes a phase-locked loop for generating a system clock signal from the color burs... | 01/12/1988 |
| 4709258 | Circuit and method for adding green synchronization pulse to red and blue video signals A synchronization separation circuit is used to separate the synchronization signal portion of a green video signal. This synchronization signal is used to enable first and second comparators which compare the synchronization portion of the green video si... | 11/24/1987 |
| 4626890 | Method and apparatus for removing phase modulation from the color burst A video signal of the type having phase modulation induced in the color burst component thereof to inhibit video tape recording, is modified to remove the phase modulation and permit acceptable video tape recording. The phase modulated color burst compone... | 12/02/1986 |
| 4562457 | Sync generator, video processor A single compact multi-function video processing unit of a color video system has a sync generator for driving a video source and a video processor for providing video functions. A bus system interconnects the sync generator and video processor.... | 12/31/1985 |
| 4468687 | Television synchronizing signal reproducing apparatus An apparatus for reproducing television synchronizing signals receives an input composite television video signal, separates synchronizing signals therefrom, and utilizes a separated horizontal synchronizing signal to separate a burst signal from the inpu... | 08/28/1984 |