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V-by-One HS


V-by-One HS is an electrical digital signaling standard that can run at faster speeds over inexpensive twisted-pair copper cables than Low-voltage differential signaling, or LVDS. It was originally developed by THine Electronics, Inc. in 2007 for high-definition televisions but since 2010 V-by-One HS has been widely adopted in various markets such as document processing, automotive infotainment systems, industrial cameras and machine vision, robotics and amusement equipments.

While high-definition televisions had generally used LVDS to transmit pixel data, timing-skew problems among conductors appeared by increasing data rate based on requirements of higher-resolution and more color-depth. V-by-One HS, by its SerDes and CDR(Clock recovery) technology, achieves the high speed of 3.75 Gbit/s for each pair of conductors, decreasing the number of conductors, therefore reducing the total costs including cables and connectors. This solves skew problems and reduces electromagnetic interference (or EMI) and power consumption.

Historically flat panel televisions used LVDS as its internal interface to transmit pixel data but, in accordance with televisions’ higher resolution and expansion in color depth, televisions had to face problems such as increasing numbers of twisted-pair cables and tangible skews problems among cables. V-by-One HS is a standard of a high-speed SerDes, introducing CDR specification and equalizer, that achieves 3.75 Gbit/s (giga bits per second), solves skew problems, and reduces the power consumption and EMI. On behalf of such features, V-by-One HS enables to reduce total costs of interface systems, including costs of cables and connectors. V-by-One HS standard is an open standard and its specification has been delivered by THine Electronics.

Equalizer of V-by-One HS improves data transmitting quality compared with LVDS interface. Because of this specification, it enables to expand data transmission between longer distances.

In addition, clock data recovery or CDR solves the skew problems that were more tangible in LVDS interface than ever. CDR technology eliminates any clock cables that LVDS requires with particular fixed frequency clock, resulted in lowering EMI noises. V-by-One HS supports wide range speed from 600 Mbit/s up to 3.75 Gbit/s, enabling lower energy consumption than interface with fixed rate.


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