We will achieve remote coexistence "tele-session" by connecting two distant points with optical fiber, enabling bidirectional optical transmission of 4K video in an uncompressed and zero-latency manner.
This unit serves as the engine for remote coexistence "tele-session," which transmits 4K video in an uncompressed, zero-latency, bidirectional manner via optical transmission. It converts the HDMI output signal from a 4K video camera into a continuous optical signal for uncompressed transmission over fiber optics, and converts a similar optical signal received from the other party's 4K video camera back into HDMI output, allowing for the output of 4K/60p ultra-high-definition video (plus audio) to a 4K monitor with zero latency. The system connects two distant locations via fiber optics, with a 4K video camera, a 4K display, and a set-top box installed at each location. This unit converts the HDMI electrical interface signal, which is suitable for general-purpose devices, into serial optical signals at wavelengths of 1310 nm/1550 nm for long-distance transmission, and can also convert received optical signals back into HDMI. The signals propagate through the fiber optics at the speed of light in quartz glass (approximately 20 km in 1 millisecond) and are transmitted continuously and uncompressed, rather than in packets with different paths, enabling the sharing of 4K video in real-time with zero latency at both locations.
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basic information
Video signal input: HDMI 1.4 From Camera Optical signal output: 1550 nm band single-mode fiber (SC connector) (-1.5 dBm or higher, +1 dBm or lower) Optical signal input: 1550 nm band single-mode fiber (SC connector) (-14 dBm or higher, +1 dBm or lower) Video signal output: HDMI 1.4 To Display Video signal: Maximum resolution 3,840×2,160P, maximum frame rate 60FPS (at 3,840×2,160P), color depth 4:2:0 (at 3,840×2,160P, 60FPS) Audio signal: HDMI embedded (up to 8 Channel LPCM 192-kHz 24-bit) Power supply: AC 85 to 264 V, 50 to 60 Hz, 1Φ, 15 W (MAX) Size: 330W × 70H × 231D (excluding protrusions) Weight: 2.7 kg ■ The optical fiber used for optical transmission is based on single-mode fiber. ■ Upon request, optical signals can be tuned to specific DWDM channels, and support for the 1310 nm band is also possible. Additionally, functions such as multiplexing Ethernet signals can be added.
Price information
The following are the price ranges for individual units. Prices may vary depending on specifications such as wavelength range and connector type. Please contact us through our website.
Price range
P4
Delivery Time
※Typically, it takes three months, but the delivery time may vary depending on the product's stock status, so please feel free to contact us.
Applications/Examples of results
■ Connecting ultra-high-definition images from examination rooms and operating rooms in the medical field interactively and with zero latency to remote locations, applicable to medical education and telemedicine, etc. ■ Remote ensemble and choir performances between distant concert halls and theaters, as well as integrated operations between the stage and the audience seats. ■ Sharing emotional experiences through zero-latency interactive viewing of scenes via large monitors at satellite venues in the sports and entertainment fields.
Detailed information
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Conceptual diagram for connecting two remote locations with optical fiber using a Dynamic Optical Path Network (DOPN) as a platform, and conducting remote ensemble performances in 4K tele-session using the set-top box DPN9001A.
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Company information
Koh Pass Communications Inc. is a venture established by volunteers from the National Institute of Advanced Industrial Science and Technology (AIST). Utilizing the new optical communication technology called Dynamic Optical Path Network (DOPN), developed through the VICTORIES project at AIST, we are advancing the commercialization of this new optical communication technology and its derived technologies, which enable the bidirectional, zero-delay transmission of uncompressed optical signals between distant locations with ultra-low power consumption. "TeleSession" leverages DOPN as a platform to transmit 4K/8K ultra-high-definition video and high-quality audio in an uncompressed, zero-delay manner, allowing for real-time sharing as if through a "connecting window," aiming for applications in telemedicine and spatial sharing in distant music and theater halls. Additionally, the dark fiber network for DOPN can be used as a transmission path for high-capacity Ethernet. Our company focuses on three main pillars of business: building optical fiber network platforms, manufacturing and selling uncompressed optical transmission equipment for TeleSession, and producing and selling delay measurement units that can accurately measure the delay in video transmission.
