1. The difference between ordinary HDMI transmission and HDBASET transmission

We all know that there is an attenuation coefficient in any electron transport, and it is even more pronounced at high resolution (frequency). Therefore, the HDBaseT HDMI Ethernet cable transmitter reorganizes the HDMI signal to reduce the attenuation coefficient and most of the interference. GEFFEN HDBaseT HDMI cable transmitter provides a longer transmission distance at 1080p resolution than ordinary HDMI network cable transmitters, and is also compatible with 4K HDR resolution up to 40 meters, which is enough to meet most home audio-visual entertainment needs. Importantly, stable transmission means better enjoyment. No one likes to watch choppy flickering or strange color screens, especially in exciting moments.

1. The transmission distance of HDMI cable is only about 5 meters, which greatly limits the use range of high-definition equipment, while the transmission distance of HDBaseT can reach 100 meters.
2. HDMI cables are expensive, and HDBaseT uses cheap and readily available CAT5/6 Ethernet cables as the transmission medium.
3. HDMI is a closed standard, and manufacturers need to pay a certain license fee to use the HDMI interface, while HDBaseT is an open standard and does not need to pay additional fees.
4. The HDBaseT standard currently supports a maximum transmission rate of 20Gb/s, which is 4 times the maximum transmission rate of 5Gb/s for HDMI, and can fully meet all uncompressed 1080p or clearer 4K x 2K video transmission.

2. The difference between ordinary HDMI network transmission and HDBASET network transmission

1. HDBASET supports 4K@60HZ transmission, HDMI network transmission supports 1080P transmission;

2. HDBASET transmission supports uncompressed transmitted images, and HDMI network transmission transmitted images are compressed;

3. HDBASET transmission supports POE unilateral power supply, HDMI network transmission does not support.

3. The new HDBASET technology

1. Video

    HDBaseT technology delivers full HD or stereoscopic 4K*2K ultra-high-resolution, uncompressed video data to a single or multiple devices. HDBaseT supports all the features of the HDMI 1.4 HD audio and video interface, including Electronic Program Menu (EPG), Consumer Control Channel (CEC), Extended Display Identification Data (EDID), and High Bandwidth Digital Content Protection (HDCP). The unique video transmission scheme ensures the high-definition image quality of the video with zero latency.

2. Audio

   HDBaseT also supports all HD audio formats, including Dolby Digital, DTS, Dolby TrueHD, and DTS HD-Master Audio.

3. Ethernet

   The HDBaseT standard enables televisions, audio systems, computers, and other consumer electronic devices to converge any stored multimedia content (such as audio or video streams) over a 100Mb Ethernet environment. HDBaseT technology also supports Ethernet backup mode, which integrates HDBaseT devices with Ethernet-only infrastructure configurations, allowing devices to transmit in environments that only require Ethernet connectivity.

4. Control signals

   HDBaseT can simultaneously transmit a variety of control signals for different commands, such as consumer control channel (CEC), RS-232 communication interface, Universal Serial Bus (USB), infrared, and network association (IP) control signals. The wide range of applications for HDBaseT offers endless business opportunities for manufacturers.

5. Power supply

   In the application of HDBaseT technology, 100W DC power supply can also be provided through Ethernet CAT5e/6 ordinary network cable. The main advantage of 5Play's overall transmission is that it provides convenience for users to use the device at any time, and reduces the use restrictions caused by power supply problems.

HDBaseT architecture

HDBaseT uses an asymmetric approach to send video, audio, Ethernet, and control information from the source to the receiver, but only 100Mb (Ethernet and control information) is sent back. While traditional data communication is symmetrical and requires a bit error rate (BER) of at least 10 to -12, HDBaseT's asymmetry is based on an innovative DSP engine and AFE (Application Front End) architecture.
A specialized line coding scheme has been developed to provide better transmission quality for certain types of data (audio, control information, and Ethernet) without the burden of protection that consumes most of the bandwidth "paid" in video content.

HDBaseT uses a proprietary Pulse Amplitude Modulation (PAM) technique, where digital data is represented as an encoding scheme with different DC voltage voltages. This makes it possible to achieve the 5Play feature set over a 100-meter CAT cable without compromising performance due to the electrical characteristics of the cable. While HDBaseT uses the same encoding technology as Ethernet and even has Ethernet channels, its packet-based technology differs from traditional Ethernet packets. HDBaseT relies only on the same physical cabling, providing the benefits inherent in a cost-effective CAT architecture.

General:

For the above HDBaseT technologies, GEFFEN can provide HDBaseT transceiver, HDBaseT HD matrix input board, HDBaseT HD matrix output board, HDBaseT HD digital matrix, HDBaseT HD hybrid matrix, HDBaseT seamless HD matrix, HDBaseT to DVI/HDMI HD converter box, HDBaseT to VGA/ YPBPR high-definition conversion box and other HDBaseT series products.