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| Number | Title | Issue Date |
| 7075590 | Apparatus for providing television receiver alignment functions A method and apparatus within a television receiver for electronically aligning signals within the receiver by controlling support circuitry for an IF module. A control voltage source controls both video alignment and picture IF (PIF) mute functions. The DAC is coup... | 07/11/2006 |
| 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 |
| 6933969 | Image capturing apparatus An image capturing apparatus uses a plurality of recording media. The image capturing apparatus includes a detection unit for detecting the loading of a first recording medium, and a control unit for switching the operation mode of the image capturing apparatus in a... | 08/23/2005 |
| 6441868 | Image reproducing apparatus having a screen blanking function and a screen blanking method using the same An image reproducing apparatus having a screen blanking function for suspending image information displayed on a screen and a screen blanking method using the same are provided. The image reproducing apparatus includes a command applying circuit for apply... | 08/27/2002 |
| 5287172 | Automatic on-screen color converting circuit for a color television An automatic on-screen color signal converting circuit is disclosed, which includes a color signal level detecting part (30), an inverting part (40), and combining/switching part (70), wherein the color signal level detecting part (30) detects the level o... | 02/15/1994 |
| 5218433 | Real time scanning device signal processing circuit including color signal and blanking signal generating circuits A real-time signal processing circuit includes circuitry for receiving input signals generated by a scanning device, and circuitry for obtaining a synchronizing signal and a first blanking signal from the receiving circuitry. The signal-processing circuit... | 06/08/1993 |
| 5036387 | Color television receiver A color television receiver having an automatic white control circuit which includes a detection circuit for detecting whether or not a given magnitude of a cathode current of a CRT flows, and generating a detection signal when the cathode current exceeds... | 07/30/1991 |
| 4663654 | Blanking signal generator for a subcarrier locked digital PAL signal Non-orthogonality of the blanking region information caused by the 25 Hz offset in a digital PAL-encoded color television signal is corrected by a dynamic offset circuit. To this end, a plurality of waveforms describing the envelopes of the blanking, sync... | 05/05/1987 |
| 4630103 | Blanking signal mixing circuit A blanking signal mixing circuit for mixing blanking signals in each of a plurality of picture signals flowing in parallel includes individual inputs for receiving in parallel picture signals into the mixing circuit, a single switching transistor which co... | 12/16/1986 |
| 4525736 | Selective color modification An apparatus and method for the modification of the color of television pictures in arbitrarily selected regions of the color space and of the picture. A region within which color modification is to take place is defined by establishing the bounds, or lim... | 06/25/1985 |
| 4506291 | Television receiver with digital signal processing having a digital-to-analog converter control capability In a television receiver with digital signal processing circuitry, a composite video signal is sampled by an analog-to-digital converter. A luminance processor responsive to the digital samples of the composite video signal develops digital luminance sign... | 03/19/1985 |
| 4460918 | Automatic switching circuit for a dual mode television receiver A television signal receiving apparatus having a first input for receiving a composite video signal and a second input for receiving a direct-drive RGB signal includes an electronic switching circuit for automatically switching between composite video and... | 07/17/1984 |
| 4330792 | Video blanking circuit with controlled rate of unblanking A circuit is disclosed for automatically blanking the kinescope of a color television receiver during channel changing intervals. The receiver also includes an automatic kinescope beam current limiter, plural kinescope driver stages, and a source of refer... | 05/18/1982 |
| 4328514 | CRT Drive circuit comprising white and black level clamping circuitry A CRT drive circuit for amplifying a video signal applied through a video signal transmission cable to a level sufficient to drive a CRT wherein a circuit for clamping the video signal to a white level during the entire period when the cable is disconnect... | 05/04/1982 |
| 4277798 | Automatic kinescope biasing system with increased interference immunity Apparatus is disclosed in a video signal processing system for automatically monitoring and controlling the blanking (black) current level of an image reproducing kinescope having cathode and grid intensity control electrodes. When cathode blanking curren... | 07/07/1981 |
| 4237479 | Blanking voltage generator for a cathode ray tube Apparatus is disclosed for generating a blanking voltage for electron guns in cathode ray tubes, as used, for example, in color television displays. Apparatus utilizes circuitry including a video voltage amplifier having a control input. A feedback loop, ... | 12/02/1980 |
| 4219838 | Horizontal blanking corrector for television signals The disclosed system for correcting excessive horizontal blanking of color television signals, separates the luminance and chrominance components of the television signal, separately expands or stretches the luminance and chrominance components, corrects ... | 08/26/1980 |
| 4207592 | Automatic kinescope bias control circuit Apparatus for automatically controlling the bias of an image reproducing color kinescope in a system incuding a plurality of video driver stages for supplying image representative video signals to respective intensity control electrodes of the electron gu... | 06/10/1980 |
| 3984864 | Gating circuit for a video driver including a clamping circuit An amplifier for combining color difference signals with luminance signals and driving a color image reproducing device includes first and second transistors of opposite conductivity type. Color difference signals are capacitively coupled to the base of t... | 10/05/1976 |
| 3970895 | Circuit for maintaining operating point stability of an amplifier An amplifier for driving a color image reproducing device includes a first transistor the base of which is capacitively coupled to a source of color difference signals. The emitter of the first transistor is direct current coupled to the base of a second ... | 07/20/1976 |
