Making live broadcasting in 8K a reality
This FPU can transmit an uncompressed 8K signal with low-latency by using 120-GHz-band radio waves. Its use of both horizontal and vertical polarizations enables large-capacity transmissions over a distance of about 1 km in fine weather and 250 m in the rain.
We prototyped an FPU that can transmit an 8K signal over long distances. It uses the 42-GHz band and an OFDM scheme with a 109 MHz or 54 MHz bandwidth. We are aiming at making it able to transmit an 8K signal about 40 km in fine weather and 5 km in the rain.
To enable 8K program contribution signals to be transmitted over an Ethernet network between and within broadcast stations, we have developed a device to transform an uncompressed 8K signal into 100 Gigabit Ethernet format. By using a technology to recover data errors occurring during transmission, large-volume uncompressed 8K signals can be stably transmitted over an Ethernet network.
We are continuing with experimental verifications that put the technologies into practical use.
*1 FPU (Field Pick-up Unit): A portable, wireless transmission device for program contribution transmissions that involve outdoor relays.
*2 The transmission scheme of the millimeter-wave band FPU follows the ARIB STD-B65 standard.
*3 Signal interface for UHDTV production systems: Optical signal interface to transmit 8K video and sound signals over a single cable in compliance with the
ARIB STD-B58 standard.