A processing module that produces as output the sum of its input and a delayed version of its input, used in the plucked string model to mimic the effect of pick position.
This is a filter built into televisions that is designed to improve resolution and picture quality by reducing objectionable color patterns. low to mid line televisions use a glass comb filter, while higher end televisions use a digital comb filter which greatly enhances resolution.
A circuit in NTSC sets that separates the color information from the brightness information.
It separates the black and white part from the color part of a video signal while preserving more detail than the older style "cut off" filters.
Provides a clear division between coloured and black/white signals.
Picture enhancement system to better distinguish vertical details. A Horizontal resolution of 400 lines and the elimination of possible disturbances in the picture can be achieved with a comb filter.
An electronic filter that is used to separate luminance and color information from an input composite video signal. (Color and luminance must subsequently be recombined in a different way, namely isolate red, green, and blue content,ÿto produce the picture.) Comb filters are used in the medium grade to more expensive TV sets to perform the necessary task of separating the two.ÿNotch and bandpass filters, common on lower priced TV sets as an alternative, produce acceptable pictures but with more discoloration and limited horizontal resolution.
Frequency response achieved by mixing a direct signal with a delayed signal of equal strength especially at short delays; used to also describe effects that can be achieved with comb filtering as part of the processing
Built into many TVs, this device removes residual chrominance and luminance. Comb filtering enhances detail, outlines and color. However, they are not needed or used when then signal arrives by S-Video, component video, DVI or HDMI cable because they deliver a signal that requires no filtering.
a delay so this controls the amount of filtering
a filter that has a series of deep notches in its frequency response which correspond to multiples of the frequency of the lowest notch
a filter that has a series of very deep notches in its frequency response with the spacing of all of the notches at multiples of the frequency of the lowest notch (they are all harmonically related)
a really short delay line with feedback
a series of delays, usually very short, that create phase cancellation and other effects
a simple, one tap, feed forward, Finite Impulse Response (FIR) Filter
a type of transversal filter that separates luminance and chrominance by using delayed video from the previous line
Component in all televisions that separates the color information in a signal from the brightness information.
AUDIO: A characteristic of a frequency response curve that appears when a sound is combined with a delayed version of itself. The name comes from the orderly, repeated, bump-dip-bump-dip visual appearance, looking like a comb. Comb filtering that occurs in a simple signal path can be annoying. However, rooms are very complicated comb filters, due to the many reflected sounds, and common experience tells us that this is usually perceived as a benefit e.g. concert halls. VIDEO: a filter that separates a composite video signal into luminance (black and white) and chrominance (color) components. See: Luminance, Chrominance, Frequency Response, Acoustical Interference.
Leading the innovation curve, Philips introduces unique R-Y, B-Y Bimos circuitry that offers above-average picture performance and superb clarity.
A circuit that splits a composite video into separate color and brightness signals.
An electrical filter circuit that passes a series of frequencies and rejects the frequencies in between, producing a frequency response similar to the teeth of a comb. Used on encoded video to select the chrominance signal and reject the luminance signal, thereby reducing cross-chrominance artifacts or conversely, to select the luminance signal and reject the chrominance signal, thereby reducing cross-luminance artifacts. Introduced in the S-VHS concept for a better luminance resolution.
This added circuitry helps produce clearer, more detail-perfect color pictures. Also provides sharper, high-resolution pictures while eliminating "dot crawl."Front Surround Sound An audio enhancement feature that improves the movie theatre-like sound and adds to the stereo effect with a wall of sound.
Separates chrominance (C) from luminance (Y) for maximum picture resolution and minimum picture distortion.
Comb Filter - This is a set of hardware or software filters that take a composite video source and separate the chroma and luma. This helps the composite video's color quality and stops the "rainbowing" issues in fine details or patterns. The end result is a signal that is effectively s-video. All modern TV sets have a form of comb filter. And most all TV capture cards include at least a basic comb filter. See also S-video.
Circuitry that electronically separates the color (chrominance) from the picture (luminance) signal, to enhance fine detail with minimal color spill or picture "noise" (distortion).
Used in conventional TV sets, this electronic device is used to remove undesirable signals whilst improving resolution and reducing colour-related distortion by separating the luminance (brightness) and chrominance (colour) information.
Video display device that separates the chrominance (color) and luminance (brightness) portions of a composite video signal.
In video equipment, a circuit that separates the chrominance from the luminance signals contained in a composite-video signal. Music producers use comb filters in the recording studio to generate â€œphasingâ€ and â€œflangingâ€ effects.
A comb filter's task is to remove residual chrominance (color) information from the luminance (brightness) signal. Comb filtering enhances fine detail, cleans up image outlines, and eliminates most extraneous colors. Comb filters are not required and not used with S-video or component video connections since those connections carry the chrominance and luminance information separately. There are 4 types of comb filters found in today's TVs: â€¢ Glass - may also be referred to as an "analog" comb filter. â€¢ 2-Line Digital - compares consecutive scanning lines within one field of video and makes adjustments to reduce cross-color interference. â€¢ 3-Line Digital - compares 3 scanning lines within a field of video. By comparing more picture information, a 3-line filter further reduces color bleeding and dot crawl. â€¢ 3D Digital - not only analyzes consecutive scanning lines within a field, but also analyzes the preceding and following fields. Results in improved color purity and a more stable video image, and nearly eliminates dot crawl and color bleeding. Also called 3D Y/C.
A comb filter is used to get the most resolution possible out of digital TV sources such as DVDs and HD signals. You will only benefit from a comb filter if you are using low quality transports such as composite video between the devices in your home theater. It is highly recommended that you use component, DVI or another higher quality type of cable for connecting the equipment in your home theater as the resulting picture will be much better
An electric filtering system designed to pass a certain set of frequencies but reject others.
Clear separation of the combined colour and black and white signals, preventing smudging, vibrating edges and ensuring precise details
Improves NTSC video signals by adjusting the horizontal scanning lines within a frame.
In signal processing, a comb filter adds a delayed version of a signal to itself, causing constructive and destructive interference. The frequency response of a comb filter consists of a series of regularly-spaced spikes, giving the appearance of a comb.