Matches 1 - 50 out of 107 1 2 3 >


Match Document Document Title
8856857 Receiving device, receiving method, and program  
This technique relates to a receiving device, a receiving method, and a program that can demodulate transmitted signals with high accuracy. A receiving device of this disclosure includes: an...
8704952 Video decoder  
A video decoder that separates and analyzes analog video signals includes a hue and saturation separator and a video signal determiner. The hue and saturation separator demodulates from a...
8654873 Method to invoke channel decoder early to decrease the acquisition time in demodulators  
In one embodiment, a Television (TV) receiver to perform a method of synchronizing a demodulator at a Viterbi decode input in the TV receiver using one or more bit de-interleaved even and odd...
8648965 Image signal processor and method thereof  
An image signal processor and a method for processing an image signal thereof are disclosed. When the image signal processor executes an automatic chroma gain control (ACC), the image signal...
8279350 System and method for improved composite decoding  
A method of composite decoding in which the input signal is converted into the frequency domain, and the symmetry of frequency components with respect to the subcarrier frequency is compared. The...
7872689 System and method for improved composite decoding  
A method of composite decoding in which the input signal is converted into the frequency domain, and the symmetry of frequency components with respect to the subcarrier frequency is compared. The...
7671923 Digital processing system and method for tracking subcarrier included in video signal  
A digital processing system and method for tracking a subcarrier included in a video signal are provided, where a phase comparator tracks the phase of a color burst signal based on predetermined...
7545937 Chrominance processing arrangement having immunity to colorstripe encoding  
A video system (100) includes a chrominance processing arrangement (200). The chrominance processing arrangement (200) includes a burst accumulator (240) operative to detect a polarity inversion...
7508451 Phase-noise mitigation in an integrated analog video receiver  
Phase noise mitigation in an analog video receiver implemented in an integrated circuit device. A phase correction value that indicates a phase offset between a synthesized sinusoid and a...
7489338 Automatic color-sync polarity control  
A system and method for automatically controlling color synchronization polarity during video decoding. Various aspects of the present invention may comprise at least one module that is adapted to...
7224407 Color demodulation device, color demodulation method and image display device  
A color demodualation device having an AD converter, a phase signal generator, a burst data generator and a multiplier. The AD converter produces digital samples of chrominance signal at a...
6912258 Frequency-domain equalizer for terrestrial digital TV reception  
A single integrated circuit multi-standard demodulator includes an adaptive inverse channel estimator for frequency domain equalization which employs a recursive least square cost function in...
6839092 Feed forward error correction in video decoder  
In accordance with an embodiment of the present invention a microprocessor in the horizontal phased lock loop reads the horizontal timing with respect to the sync input and provides an increment...
6765621 Color system discriminator  
A color system discriminator is provided with a frequency detector, a vertical-synchronizing frequency detector, a plurality of color demodulators, a demodulating switch, and a controller. The...
6760076 System and method of synchronization recovery in the presence of pilot carrier phase rotation for an ATSC-HDTV receiver  
There is disclosed a system and method for recovering a recurring data segment synchronization pattern in the presence of an arbitrary phase rotation of a pilot carrier by detecting and...
6753924 Oscillation signal processing apparatus, television apparatus and oscillation signal processing control method  
In a conventional construction to obtain a reference signal for a tuner and a subcarrier for color difference signal demodulation by only one quartz oscillator, the reference signal is unstable...
6567129 Color demodulating device  
A color demodulation apparatus having color demodulation capabilities as the conventional ones, with its size reduced by sharing part of processing circuit therein is provided. An adder circuit 10...
6330034 Color phase-locked loop for video decoder  
A microprocessor controlled color phase locked loop is provided which provides flexibility and adaptability for different television standards and sampling rates. Color burst phase error and color...
6215528 Method and apparatus for digital multi-standard color signal demodulation  
The key component of a digital PAL or NTSC color decoder is a quadrature demodulator for these AM modulated signals. For a SECAM color decoder, however, an FM demodulation is required which is...
6172713 Color television system determination circuit  
A color system determination circuit for use with an input video signal having a frequency component is disclosed. The circuit includes a color trap filter for attenuating the frequency component...
6064442 Color video signal demodulating apparatus  
A color video signal demodulating apparatus is provided. The apparatus includes a color subcarrier signal generator for generating a color subcarrier signal synchronously with a color burst, an...
6038276 Digital phase lock loop for non-continuous reference signal  
A phase lock loop which locks a numerically controlled oscillator (NCO) to a non-continuous reference signal. The phase of the reference signal is ascertained by detecting the zero crossings of...
5995168 Digital video receiver  
A video receiver includes a tuner, a QAM demodulator including a selective gated PLL carrier recovery circuit, and a digital equalizer. The selective gated PLL carrier recovery circuit has a...
5831680 Color signal processing circuit capable of processing PAL/NTSC color television signals which prevents image deteriorization caused by chromatization  
In a color signal processing circuit capable of processing a PAL/NTSC color television signal, in order to prevent an image deterioration caused by chromatization when a PAL signal is received in...
5703660 System and method for decoding a quadrature ampliture modulated signal  
A video signal decoder using a sample clock tied to a frequency that is an integer multiple of four times the color subcarrier (4*Fsc). By using a 4*Fsc rate on a given input wave, the decoder...
5654767 Digital chrominance signal demodulating device  
In a digital chrominance signal demodulating device receiving a carrier chrominance signal obtained by digitizing an analog composite video signal, a frequency component near the horizontal...
5459524 Phase modulation demodulator apparatus and method  
This invention is for a reference generator and demodulator for recovering information which has been phase, modulated on (or encoded on) a carrier. The inventive concepts described herein include...
5450136 Decoder circuit for generating a system clock signal phase locked to a range tone signal  
A decoder circuit for receiving a video input signal which includes Manchester coded data bits and a range tone component having a frequency of about 102.6 kilohertz. A phase lock loop circuit...
5396294 Digital chrominance signal demodulation apparatus  
Different from typical signal processing which employs a feedback control, by adopting a demodulating circuit employing AFC, which is not affected by a comb filter, the response characteristic...
5355226 Recording-reproduction apparatus applying double reset to the phase of an FM carrier  
A magnetic recording-reproduction apparatus records and reproduces a wide-band video signal without a color burst signal. For this purpose, a two-step phase resetting operation is conducted on the...
5351089 Video signal processing device and method  
A video signal processing device comprises: a unit for extracting a first color burst signal from a first video signal; a unit for generating a first subcarrier in synchronism with the first color...
5325184 Method of and apparatus for regulating color in a received video signal  
A method of and apparatus for regulating color in a color broadcasting receiver is disclosed and is composed of a tuner, a demodulator, and a burst level detector for detecting the color burst...
5317410 I-axis detecting circuit provided in color demodulating circuit of TV receiver  
An I-axis phase pulse is allowed to be detected at the sampling point of a chrominance signal with a digitally-implemented circuit. A chrominance signal (sampling frequency f1) is subsampled by a...
5194938 SECAM decoder with phase-locked loop demodulators  
A SECAM decoder comprises an input receiving a chrominance subcarrier (SP); first and second outputs delivering respectively the decoded blue (B2) and red (R2) signals; a first PLL phase...
5083197 Apparatus for restoring the correct phase relation of the chroma and luminance signals passed through separate paths  
Apparatus is disclosed for processing the chroma and luminance signals reproduced from a magnetic recording medium. The chroma signal in passing through a separate path from the luminance signal...
4930003 Burst/continuous wave converting apparatus for converting continuous wave in response to bursts  
A color synchronizing circuit (120) of a color television receiver includes a PLL circuit having a phase detector circuit (12b), an LPF (12c), a VCO (12d) and a 1/4 frequency divider (12f). Color...
4864399 Television receiver having skew corrected clock  
A digital TV receiver includes an apparatus for generating a skew corrected clock. The apparatus consists of a fixed frequency, free running oscillator for producing a signal having a frequency...
4680621 Method and apparatus for variable phasing of periodic signals  
A periodic output signal is generated at a variable phase relative to a periodic input signal by comparing the input signal with a third periodic signal that has a frequency which is less than the...
4677463 Color television receiver comprising a chrominance signal processing circuit and an integrated circuit therefor  
By including a counting circuit, optionally followed by a sample-and-hold circuit coupled to an output of a quadrature-component demodulator in a chrominance signal processing section of a color...
4633187 AM synchronous detecting circuit  
A demodulating circuit for an amplitude-modulated signal comprises an input terminal to be supplied with an input signal comprising at least a modulated carrier signal amplitude-modulated by an...
4631487 Phase lock loop television signal demodulator  
A phase lock loop demodulator has its loop amplifier and filter designed such that the transfer function of the amplifier and filter is optimized for the presence of sound and color subcarriers....
4611240 Chrominance processor control system  
In a color TV receiver, a color AFPC loop, responsive to line rate synchronizing bursts of subcarrier frequency derived from the output of a first of a pair of cascaded chrominance signal...
4605904 Phase locked loop frequency demodulator having an adjustable bandwidth  
Video frequency demodulator having a phase-locked loop (P.L.L.) intended more specifically for receiving signals transmitted via satellites, in which the bandwidth of the loop is adjusted as a...
4561014 Method and circuit for frequency and phase locking a local oscillator for television  
A conventional phase locking loop for locking a local oscillator in phase and frequency to a color burst signal in a television system requires a highly stable (i.e. crystal controlled) oscillator...
4544943 Stabilized color television subcarrier regenerator circuit  
A subcarrier regenerator circuit for use in color television receiver demodulators. The regenerator includes a voltage-controlled oscillator and a fixed frequency oscillator set to the nominal...
4443769 Frequency search system for a phase locked loop  
A sampling PLL circuit features a frequency sweep caused by an offset voltage applied to an integrator to avoid false lock ups. At one end of the frequency range the polarity of the offset signal...
4413274 Color synchronizing circuit  
A color synchronizing circuit comprises a phase locked loop which includes a voltage controlled oscillator including a ceramic vibrator. Phase comparison is made of an intermittent color burst and...
4402005 Clock generator for a digital color television signal receiver  
An arrangement is provided for developing timed clock signals for a digital baseband television signal processing system. An AFPC loop circuit is responsive to the color burst signal component of...
4121243 Color subcarrier generator  
A color signal processing apparatus, particularly a circuit for generating a color sub-carrier wave for demodulation, used in a color television receiver set to demodulate a carrier color signal...
4110785 Clock generator for video signal processing  
A clock generator is provided which demodulates the burst subcarrier portion of a video signal containing time base errors. The demodulation is with respect to an external subcarrier reference...

Matches 1 - 50 out of 107 1 2 3 >