Dual mode display-port connector for optical communication

摘要

A dual mode display-port connector including a host-side auxiliary interface, a display-side auxiliary interface, and a cable. Each of the host-side auxiliary interface and the display-side auxiliary interface includes a bi-directional converter and a direct-current (DC) balancing codec. The bi-directional converter converts differential auxiliary signals received via one side thereof into a single auxiliary signal and a single auxiliary signal received via another side thereof into differential auxiliary signals. The direct-current (DC) balancing codec performs DC balancing encoding on a single auxiliary signal received via one side thereof, and decodes an encoded single auxiliary signal obtained through an encoding process and received via another side thereof.

主权项

1. A dual mode display-port which connects a host device and a display device according to the display-port communication standards proposed by the Video Electronics Standards Association (VESA), the dual mode display-port connector comprising:
a host-side auxiliary interface connected to auxiliary signal terminals of the host device; a display-side auxiliary interface connected to auxiliary signal terminals of the display device; and a cable for connecting the host-side auxiliary interface and the display-side auxiliary interface, wherein the host-side auxiliary interface comprises: a bi-directional converter for converting differential auxiliary signals received via one side thereof into a single auxiliary signal and a single auxiliary signal received via another side thereof into differential auxiliary signals; a direct-current (DC) balancing codec for performing DC balancing encoding on a single auxiliary signal received via one side thereof, and decoding an encoded single auxiliary signal obtained through an encoding process and received via another side thereof; anda bus switch for connecting common signal lines to which differential auxiliary signals or inter-integrated circuit (I2C) signals are supplied to differential auxiliary signal lines or I2C signal lines,
wherein, in the host-side auxiliary interface, the common signal lines are drawn from the auxiliary signal terminals of the host device and connected to the bus switch, and wherein the host-side auxiliary interface further comprises: a first electrophotic converter; a photoelectric converter; and a second electrophotic converter, and wherein, when the I2C signals are selected according to a voltage of a configuration terminal of the host device, a clock signal is transmitted in the form of an optical signal to the display-side auxiliary interface from the first electrophotic converter, a serial data signal is transmitted in the form of an optical signal to the photoelectric converter from the display-side auxiliary interface, and a serial data signal is transmitted in the form of an optical signal to the display-side auxiliary interface from the second electrophotic converter.