Answer: HDMI network cable many-to-many extender: This product has a variety of HDMI transmission extension functions. It can not only be used as an ordinary single network cable 100-meter extender, but also can convert HDMI signals into network signals and transmit them through the local network and router. Through the cascading network extension of multi-level routers, this product can also support point-to-multipoint transmission, so as to realize the function of high-capacity HDMI splitter.

Answer: HDMI wireless extender is a wireless transmission device that transmits audio and video signals from the signal source (computer and high-definition playback device) to the remote HDTV or high-definition projector. It can realize lossless and delay-free transmission of 1080P/60 and 3D. No need to install software, plug and play, unobstructed extension distance up to 100 meters.

A: The HDMI cable extender converts the HDMI signal into a 10G signal, transmits and receives it through the network cable, and realizes long-distance transmission of HDMI high-definition signals. Each extender includes a transmitter and a receiver, the transmitter is connected to the HDMI Source, the receiver is connected to the HDMI Sink, and the transmitter and receiver are connected through a network cable.

Answer: The video bit rate is the number of bits of data transmitted per unit of time during data transmission. Generally, the unit we use is kbps, that is, kilobits per second. A simple understanding is the sampling rate. The larger the sampling rate per unit time, the higher the accuracy, and the closer the processed file is to the original file. However, the file size is proportional to the sampling rate, so almost all encoding formats focus on how to use the lowest bit rate to achieve the least distortion. The cbr (fixed bit rate) and vbr (variable bit rate) derived from this core rate), are all articles made in this regard, but things are not always absolute. For example, for an audio, the higher the bit rate, the smaller the compressed ratio, the smaller the loss of sound quality, and the better the sound quality of the audio source. near.

Answer: Variable bit rate encoding: From the perspective of ensuring video transmission quality and making full use of information, variable bit rate video encoding is the most reasonable. The reason is: the peak information volume of the video source itself is changing. If the bit rate of the output stream is to be fixed, the transmission system needs to be designed according to the peak information volume of the source, but most of the time it is not. When a peak amount of information occurs, in order to ensure a fixed bit rate, some padding codes are usually inserted, which wastes video resources. Using variable code rate coding, it can be allocated according to the amount of information of the source itself, thereby effectively utilizing information resources.

Answer: Fixed rate coding: Usually fixed rate video coding algorithms are implemented by changing the quantizer step size using the buffer state. When the image details are rich, in order to ensure that the buffer does not overflow, it is necessary to increase the quantization step size and reduce the number of encoded bits, so as to ensure the constant bit rate of the output code stream. This comes at the expense of video quality. Because increasing the quantization step size will damage the high-frequency details and low-frequency background of the image, and even produce "block effect" and blurring of image details.

Answer: Bandwidth, also known as bandwidth, is the transmission capacity of data, which refers to the number of bits that can be transmitted per unit time. High bandwidth means high capacity. Bandwidth in digital equipment is expressed in bps (b/s), which is the highest number of bits that can be transmitted per second. Bandwidth in analog devices is expressed in Hz, the number of signal cycles transmitted per second. Usually, the unit is omitted when describing the bandwidth. For example, 10M is essentially 10M b/s. The bandwidth calculation formula is: bandwidth=clock frequency*bus bits/8. Bandwidth in electronics refers to the frequency range over which a circuit can maintain stable operation.

Answer: The data transmission rate, also known as the bit rate, refers to the actual number of bits transmitted per second, and is a measure of the information transmission rate (signal rate). The unit is "bits per second (bps)". Its calculation formula is S=1/T. T is the time it takes to transmit 1 bit of data.

Answer: Resolution, also known as resolution and resolution, can be classified from two directions: display resolution and image resolution. Display resolution (screen resolution) is the precision of the screen image and refers to how many pixels a monitor can display.