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| Number | Title | Issue Date |
| 7184096 | Method and circuit for providing a horizontal scan signal for a television set A method for providing a horizontal scan control signal for a TV set from a horizontal synchronization signal contained in a composite video signal, the horizontal synchronization signal containing horizontal synchronization pulses and parasitic pulses, the scan con... | 02/27/2007 |
| 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 |
| 5189515 | Television synchronization signal separator A television synchronization signal separator for a composite synchronizating signal, in which the horizontal synchronizing signal and the vertical synchronizing signals are derived and free from the interference of the equalization signals and noise duri... | 02/23/1993 |
| 4377823 | Noise processing system for a television receiver A noise processing system is described for use in protecting a television receiver's sync processing path and its video processing path from impulse noise. To protect the video processing path, a first noise canceller receives a composite video signal, de... | 03/22/1983 |
| 4254436 | Noise cancellation circuit A noise cancellation circuit is provided for cancelling impulse noise in a composite video signal. A composite video signal which may be contaminated with impulse noise is coupled to a noise inverter and an active filter. The noise inverter generates an i... | 03/03/1981 |
| 4212032 | Synchronization and gain control circuit A circuit is provided for developing a television synchronization signal and an automatic gain control (AGC) signal. A composite video signal is coupled to the input of a D.C. threshold noise inverter which inverts impulse noise above a predetermined thre... | 07/08/1980 |
| 4204219 | Noise cancellation circuit The peak value of an input signal is detected for comparison with the instantaneous value of the input signal to control the detected peak value at a constant level in a feedback loop. When the instantaneous value of the input signal exceeds a certain lim... | 05/20/1980 |
| 4042959 | Noise suppression circuit A noise suppression circuit for suppressing or cancelling noise pulses in a composite video signal coupled to television receiver synchronizing pulse separator and automatic gain control circuits is shown. Noise pulses in the video signal exceeding the am... | 08/16/1977 |
