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| Number | Title | Issue Date |
| 7411629 | Method and apparatus for correcting frequency characteristics of carrier chrominance signal A method and an apparatus are provided for correcting the frequency characteristics of a carrier chrominance signal, which, by use of the correcting signal for the frequency characteristic involved in a vertical blanking interval, determine whether the frequency cha... | 08/12/2008 |
| 7277136 | Adaptive bandwidth control in a kinescope amplifier A method for controlling dissipation in a video amplifier for a display signal. The method comprises the steps of setting a first current for establishing a first gain bandwidth product in the video amplifier. Generating a control signal in accordance with a slew ra... | 10/02/2007 |
| 7184099 | Controllable signal baseline and frequency emphasis circuit A circuit for selectively controlling signal baseline and frequency emphasis. An amplifier with selectively controllable feedback circuitry allows higher frequency components of a signal to be emphasized over lower frequency components while also allowing control ov... | 02/27/2007 |
| 7158191 | Video signal processing apparatus Example burst signal sampling circuitry including synchronous separator circuit(s), waveshaping circuit(s), bandpass amplifier circuit(s), and burst separator circuit(s) is provided in order to extract burst signal(s) from video signal(s) output from video amplifier... | 01/02/2007 |
| 7113206 | Image signal processor According to the present invention, it is possible to display an image signal with as a high picture quality as would have been obtained with a solid image pick-up device having color filters arrayed in a mosaic pattern. The image signal obtained from the solid imag... | 09/26/2006 |
| 7051063 | Integrated low power channel select filter having high dynamic range and bandwidth A channel select filter circuit is disclosed using a current-mode transconductance-capacitor (gm-C) architecture, which is tuned by digitally controlled capacitor arrays. The main filter includes at least one transconductor-capacitor (gm-C) filter and a transresista... | 05/23/2006 |
| 7038708 | Film scanner system with an automatic focusing device In a film scanner with an automatic focusing device in which the film images are shown line by line by means of an objective on at least one line sensor, with a still film the adjusting range of the objective is passed through according to a predefined program. The ... | 05/02/2006 |
| 7019792 | Image display apparatus An image display apparatus responding to diverse video signals having different display conditions includes: a frequency characteristic adjustment module that adjusts a frequency component of an analog video signal included in a supplied video signal; an A/D convers... | 03/28/2006 |
| 6980197 | Integrated driver for use in display systems having micromirrors An integrated driver for controlling operations of display systems having spatial light modulators that are operated in binary states is provided. ... | 12/27/2005 |
| 6927801 | Video signal processing apparatus and video displaying apparatus A video signal processing apparatus processes input video signals. A video signal source supplies the input video signals carrying at least a first video signal that is an interlaced signal having 480 effective scanning lines and a second video signal that is an int... | 08/09/2005 |
| 6288756 | Luminance correction circuit and video display monitor thereof A luminance correction circuit to correct areas of unevenness in luminance or color of a video image and smoothes gaps between correction blocks. The luminance correction circuit comprises a memory for storing correction data for correcting unevenness in ... | 09/11/2001 |
| 5933197 | Display device having a video bandwidth controller A synchronizing frequency of red (R), green (G) and blue (B) video signals is detected by a frequency detector. The resolution of the RGB video signals is calculated by a calculator. When the resolution of the RGB video signals is close to the resolution ... | 08/03/1999 |
| 5675832 | Delay generator for reducing electromagnetic interference having plurality of delay paths and selecting one of the delay paths in consonance with a register value It is an object of the present invention to restrict EMI radiation at a specific frequency by inserting a delay time that is effective for that frequency. The feature of the present invention is to provide a delay generator that can selectively alter dela... | 10/07/1997 |
| 5598225 | Method and apparatus for improving transmitted video signal structure A video processor, having an input and an output, for compensating for accumulated phase and amplitude errors encountered during transmission of a video signal over a communications channel. The video processor includes a high-pass filter and amplifier, c... | 01/28/1997 |
| 5420633 | Apparatus for suppressing pseudo-contours in video signals An image signal processing device includes a luminance information detecting circuit which detects luminance information on an object and a filter circuit to which an image signal is supplied from an image sensing system. The filtering characteristic of t... | 05/30/1995 |
| 5400084 | Method and apparatus for NTSC signal interference cancellation using recursive digital notch filters A complex NTSC interference canceler for eliminating NTSC signal interference from in-phase and quadrature phase received television signals including both a desired HDTV signal and NTSC interference signal. The complex NTSC interference canceler uses a b... | 03/21/1995 |
| 5396293 | Filter circuit with bandwidth varied as a function of bit error rate and luminance level An arrangement for enhancing an image corresponding to a television signal including a digital component includes a variable bandwidth filter and a control unit for controlling the bandwidth of the filter in response to the bit error rate (BER) of the dig... | 03/07/1995 |
| 5369448 | Video signal processing system removing redundant information from chroma/motion separation output A video signal processing system including a reproducing or receiving circuit which is responsive to a recorded or transmitted video signal having a motion signal modulated at a first frequency mixed with a chroma signal modulated at a second frequency, w... | 11/29/1994 |
| 5349444 | Video signal output circuit with adaptive equalizer A video signal output circuit used in a TV set to sample the frequency level of an input video signal so that monitored pictures are automatically optimized in quality. A luminance signal is separated from the input video signal by a Y/C separator. A plur... | 09/20/1994 |
| 5339115 | Variable bandwidth luminance filter with commonly tuned delay and amplitude controlling filters providing frequency independent and bandwidth independent delay characteristic A luminance signal filter for use in a multi-source television receiver, includes a tunable filter responsive to a bandwidth control input signal for determining the bandwidth of luminance signals applied to said filter and a variable delay circuit invers... | 08/16/1994 |
| 5325204 | Narrowband interference cancellation through the use of digital recursive notch filters A digital notch filter apparatus for removing narrowband interference signals from a wideband communication signal. The apparatus includes a recursive digital passband interference acquisition filter, an acquisition mode center frequency control circuit, ... | 06/28/1994 |
| 5298982 | Television receiver with switchable chrominance signal filter A fixed filter determines a lower portion of the amplitude characteristic of a chrominance signal sideband correction filter. A variable filter determines the upper portion of the amplitude characteristic. A control signal tunes the variable filter for pr... | 03/29/1994 |
| 5296921 | Two port network with shared elements for combining and filtering luma and chroma components to form composite video signal A network combines luminance and chrominance signals to provide a composite video signal wherein the chrominance signal is subjected to band pass filtering to reject low frequency noise and the luminance signal is subjected to filtering by a predetermined... | 03/22/1994 |
| 5280346 | Equalizing amplifier Equalizing amplifying circuitry for compensating frequency dependent losses occurring in a signal transmitted over a network such as a cable. The circuitry includes an equalizing network responsive to the signal transmitted over the cable, the equalizing ... | 01/18/1994 |
| 5264936 | System for adjusting filters processing the composite video signal in a secam multistandard set A system for adjusting filters processing the composite video signal in a multistandard set by determining the tuning phases during the quiescent phases of the composite video signal. A reference signal (fref) is applied to the filter during th... | 11/23/1993 |
| 5253043 | Upsampled interpolative processing of digital video signals A digital processing system for providing spectral headroom to accommodate harmonic distortion components resulting from non-linear processing of digitized samples of video signals is shown. A standard set of video signal samples are all upsampled and fil... | 10/12/1993 |
| 5239367 | Signal discriminating circuit and active filter using same An NTSC/PAL signal discriminating circuit automatically adjusts the trap center frequency of an active filter in accordance with the frequency of an input signal. The discriminating circuit operates to generate a signal of an amplitude corresponding to th... | 08/24/1993 |
| 5179727 | Automatic adjusting circuit for an analog filter The center frequency of each of the analog filters with different selectivities each other installed in an automatic adjusting circuit is automatically adjusted in accordance with a bias input signal which is generated by the phases detectors respectively... | 01/12/1993 |
| 5124850 | Method and apparatus for equalizing FM video signals using variable equalizer An equalization apparatus in which a variable equalizer is used to equalize the frequency response of an FM video signal obtained by frequency-modulating a carrier signal with a video signal in which a reference signal of a constant frequency is inserted ... | 06/23/1992 |
| 5083213 | Chrominance signal processing circuit and video tape recorder having function of processing chrominance signal A chrominance signal processing circuit of VTR comprises a first frequency converting circuit (3) for converting a frequency of a chrominance signal in a video signal. The frequency converting circuit multiplies an inputted chrominance signal and a four-p... | 01/21/1992 |
| 5072298 | Auto-tuning circuit for an active filter used in video signal processing An auto-tuning circuit for automatically adjusting the transfer function of an active filter for processing video signals. A voltage-controlled filter is used as active filter, for imparting a predetermined transfer characteristic to a signal having a com... | 12/10/1991 |
| 4991003 | Receiver with correction for comb filter frequency response A video source is coupled to a display processor by a circuit path including a comb filter and a luminance signal delay line and including a comb filter amplitude correction circuit. Circuit means in the path prevents impedance variations of the correctio... | 02/05/1991 |
| 4939528 | Equipment requiring external cartridge to be assembled therein An equipment which requires an external unit to be assembled therein for starting inherent operation. The equipment includes a detection means for detecting an identification mark such as a trade mark affixed to the external unit. The equipment is only op... | 07/03/1990 |
| 4688082 | Multi-system television receiver A multi-system television receiver capable of receiving television signals of PAL system, NTSC system and SECAM system with a plurality of different subcarrier wave frequencies, includes a frequency detecting circuit for detecting the frequency of a subca... | 08/18/1987 |
| 4686561 | Vertical detail information restoration circuit In a composite color video signal, a portion of the signal spectrum is shared by high frequency vertical detail information, and high frequency modulated color difference (I) information. A circuit is described which determines whether the information in ... | 08/11/1987 |
| 4651196 | Adaptive control of the chrominance signal frequency response in a video signal processing system A digital television receiver, which uses a comb filter to separate the luminance and chrominance components of composite video signals, includes an adaptive band-pass filter for processing the comb filtered chrominance signals. Comb filtered chrominance ... | 03/17/1987 |
| 4649420 | Automatic frequency response correction using color burst A tilt correction circuit for a color television signal processor includes a differential amplifier having a first tuned circuit tuned near the color carrier frequency and a second tuned circuit tuned near the picture carrier frequency. An IF video input ... | 03/10/1987 |
| 4591899 | Color image pickup device Disclosed is a color image pickup device comprising an image pickup device for converting the image beam obtained through the color separating filter into an electrical signal, a detecting device for detecting the signal amount near the sampling frequency... | 05/27/1986 |
| 4536787 | Demodulated chrominance signal filter with peaked response A filter network suitable for processing a signal such as the demodulated "I" chrominance component of a composite color television signal is disclosed. The filter network comprises plural cascaded mutually interactive resonant LC sections for providing w... | 08/20/1985 |
| 4536788 | Demodulated chrominance signal filter using impedance mismatched sections A filter network suitable for translating a signal such as a demodulated "I" chrominance component of a composite color television signal is disclosed. The filter network comprises first and second cascaded sections with mutually grossly mismatched termin... | 08/20/1985 |
