color subcarrier lock

简明释义

彩色副载波锁相

英英释义

例句

1.Without a stable color subcarrier lock 色彩子载波锁定, the broadcast signal can suffer from color distortion.

没有稳定的色彩子载波锁定 色彩子载波锁定，广播信号可能会出现色彩失真。

2.The video editor noticed that the color subcarrier lock 色彩子载波锁定 was off, causing issues in post-production.

视频编辑注意到色彩子载波锁定 色彩子载波锁定 不正确，导致后期制作出现问题。

3.During the live transmission, the team monitored the color subcarrier lock 色彩子载波锁定 to prevent any interruptions.

在直播期间，团队监控色彩子载波锁定 色彩子载波锁定 以防止任何中断。

4.To ensure accurate color reproduction, the camera settings include an option for color subcarrier lock 色彩子载波锁定.

为了确保准确的色彩再现，相机设置中包括了色彩子载波锁定 色彩子载波锁定 的选项。

5.The technician adjusted the settings to ensure the color subcarrier lock 色彩子载波锁定 was properly configured for optimal video quality.

技术员调整设置以确保色彩子载波锁定 色彩子载波锁定 正确配置，以获得最佳视频质量。

作文

In the realm of television broadcasting, the term color subcarrier lock holds significant importance. This concept is primarily related to the synchronization of color information in analog television signals. When a television signal is transmitted, it contains both brightness and color information. The color subcarrier lock ensures that the color information is accurately received and displayed on the screen, allowing viewers to enjoy vibrant and true-to-life colors.The color subcarrier lock works by locking the frequency of the color subcarrier to a specific reference frequency. In the NTSC (National Television System Committee) format, which was widely used in North America, the color subcarrier operates at a frequency of 3.579545 MHz. This precise frequency is crucial because any deviation can lead to color distortion or misalignment, resulting in an unpleasant viewing experience.When a television receiver is tuned to a broadcast signal, it must achieve a color subcarrier lock to properly decode the color information. If the receiver fails to lock onto the correct frequency, the colors may appear washed out or exhibit strange artifacts. This phenomenon can be particularly noticeable in scenes with rich color palettes, where the lack of proper synchronization can detract from the overall quality of the broadcast.The process of achieving a color subcarrier lock involves various electronic components within the television set, including phase-locked loops (PLLs) and demodulators. These components work together to detect the incoming signal's frequency and adjust themselves accordingly. Once the television locks onto the color subcarrier lock, it can efficiently process the color data and present it accurately on the screen.In the transition from analog to digital broadcasting, the concept of color subcarrier lock has evolved. Digital television uses different methods for encoding color information, such as the YCbCr color space. However, the underlying principle of maintaining synchronization between the brightness and color components remains essential. Even in digital formats, ensuring that the color data is correctly aligned is critical for delivering high-quality images to viewers.Moreover, advancements in technology have led to the development of new broadcasting standards, such as ATSC (Advanced Television Systems Committee) in the United States. These standards incorporate sophisticated techniques to manage color information, yet the fundamental idea of a color subcarrier lock still exists in some form. The ability to maintain color fidelity and prevent distortion continues to be a priority for broadcasters and manufacturers alike.In conclusion, the term color subcarrier lock is not just a technical jargon; it represents a crucial aspect of television broadcasting that directly impacts the viewer's experience. Understanding how the color subcarrier lock functions helps us appreciate the complexity behind the scenes that allows us to enjoy our favorite shows in full color. As technology continues to evolve, the principles of synchronization and color accuracy will remain at the forefront of broadcasting innovations, ensuring that audiences receive the best possible visual experience.

在电视广播领域，术语色彩副载波锁定具有重要意义。这个概念主要与模拟电视信号中色彩信息的同步有关。当电视信号被传输时，它包含亮度和颜色信息。色彩副载波锁定确保颜色信息被准确接收并在屏幕上显示，使观众能够享受生动且真实的色彩。色彩副载波锁定通过将颜色副载波的频率锁定到特定的参考频率来工作。在NTSC（国家电视系统委员会）格式中，该格式在北美广泛使用，颜色副载波的工作频率为3.579545 MHz。这个精确的频率至关重要，因为任何偏差都可能导致颜色失真或错位，从而导致不愉快的观看体验。当电视接收器调谐到广播信号时，它必须实现色彩副载波锁定，以正确解码颜色信息。如果接收器未能锁定到正确的频率，颜色可能会显得褪色或出现奇怪的伪影。这种现象在色彩丰富的场景中特别明显，缺乏适当的同步会削弱广播的整体质量。实现色彩副载波锁定的过程涉及电视机内的各种电子元件，包括相位锁定环（PLL）和解调器。这些组件共同工作，以检测输入信号的频率并进行相应调整。一旦电视锁定到色彩副载波锁定，它就可以有效处理颜色数据，并准确地在屏幕上呈现。在从模拟广播过渡到数字广播的过程中，色彩副载波锁定的概念也发生了变化。数字电视使用不同的方法来编码颜色信息，例如YCbCr色彩空间。然而，保持亮度和颜色分量之间同步的基本原理仍然至关重要。即使在数字格式中，确保颜色数据正确对齐对于向观众提供高质量图像仍然至关重要。此外，技术的进步导致了新广播标准的发展，例如美国的ATSC（先进电视系统委员会）。这些标准采用复杂的技术来管理颜色信息，但色彩副载波锁定的基本思想在某种形式上仍然存在。保持色彩保真度和防止失真的能力仍然是广播商和制造商的优先考虑。总之，术语色彩副载波锁定不仅仅是技术术语；它代表了电视广播的一个关键方面，直接影响观众的体验。理解色彩副载波锁定的功能帮助我们欣赏幕后复杂的工作，使我们能够以全色彩享受最喜欢的节目。随着技术的不断发展，同步和色彩准确性的原则将继续处于广播创新的前沿，确保观众获得最佳的视觉体验。