Subcarrier in a sentence

Although, in response to changing U and V values, the chroma sinewave changes phase with respect to the subcarrier, it's not correct to say that the subcarrier is simply "phase modulated".

A subcarrier oscillator in the receiver locks onto this signal (see phase-locked loop) to achieve a phase reference, resulting in the oscillator producing the reconstituted subcarrier.

But a spectrum analyzer instrument shows that, for transmitted chrominance, the frequency component at the subcarrier frequency is actually zero energy, verifying that the subcarrier was indeed removed before transmission.

The Miller encoding transitions are indicated by 180° phase shifts in the subcarrier, i.e. the subcarrier pauses for 1/2 of a cycle at each transition.

The original black-and-white standard, with its 15,750 Hz line frequency and 4.5 MHz audio subcarrier, does not meet these requirements, so designers had either to raise the audio subcarrier frequency or lower the line frequency.

As it turns out, the chroma amplitude (when considered together with the Y signal) represents the approximate saturation of a color, and the chroma phase against the subcarrier as reference, approximately represents the hue of the color.

Before transmission, the subcarrier itself, is removed from the active (visible) portion of the video, and moved, in the form of a burst, to the horizontal blanking portion, which is not directly visible on screen.

Color was added on later by adding a 3.58-MHz subcarrier signal that was partially ignored by black-and-white TV sets.

Color was tacked on later by adding a 3.58-MHz subcarrier signal that was partially ignored by B&W TV sets.

Designers chose to make the chrominance subcarrier frequency an n + 0.5 multiple of the line frequency to minimize interference between the luminance signal and the chrominance signal.

Due to limitations of frequency divider circuits at the time the color standard was promulgated, the color subcarrier frequency was constructed as composite frequency assembled from small integers, in this case 5×7×9/(8×11) MHz.

For a color TV to recover hue information from the color subcarrier, it must have a zero phase reference to replace the previously suppressed carrier.

For this purpose, a short burst of subcarrier, known as the color burst, is transmitted during the back porch (re-trace blanking period) of each scan line.

Raising the audio subcarrier frequency would prevent existing (black and white) receivers from properly tuning in the audio signal.

The above process uses the subcarrier.

The high-resolution display offered more colors simply by compressing more, narrower pixels into each subcarrier cycle.

The high-resolution display offers more colors by compressing more (and narrower) pixels into each subcarrier cycle.

The PAL-M system has a different sound carrier and a different colour subcarrier, and does not use 625 lines or 50 frames/second.

The resulting subcarrier sidebands is also known as "chroma" or "chrominance".

The Telefunken license covered any decoding method that relied on the alternating subcarrier phase to reduce phase errors.