Provided are a repeater device for a DisplayPort side channel and an operating method thereof. The repeater device of a DisplayPort includes: a source device processor transmits or receives an electrical signal of a side channel data of the display port to or from a source device and processes repeater data; and a sink device processor transmits or receives an electrical signal of a side channel data of the display port to or from a sink device and processes repeater data, wherein the source device processor or the sink device processor comprising a controller processes repeating of the side channel data of the display port using the repeater data which is obtained by transforming the electrical signal to an optical signal.

In one embodiment, an apparatus comprises: a coherent optical receiver front-end circuit to receive an optical signal comprising information and further to receive a local oscillator optical signal, and output an orthogonal electrical signal based on the optical signal; a processing circuit coupled to the coherent optical receiver front-end circuit to receive the orthogonal electrical signal and process the orthogonal electrical signal to generate therefrom sum of squares information; and a non-coherent receiver coupled to the processing circuit to recover the information from the sum of squares information. Other embodiments are described and claimed.

At least one source of light mounted in a terrestrial vehicle optically couples to one or more light-bearing conduits. Various sizes of conduit can be utilized and the conduits can be grouped or physically separated. One, some, or all of these light-bearing conduits may carry any or all of visible light, data-bearing light, and power conveying light for use by any of a variety of illumination components, data-capable components, and light-to-electricity conversion components, respectively. A given component may itself constitute both an illumination component and a data-capable component, or both an illumination component and a light-to-electricity conversion component, or both a data-capable component and a light-to-electricity conversion component, or a component that constitutes each of an illumination component, a data-capable component, and a light-to-electricity conversion component as desired.

At least one source of light mounted in a terrestrial vehicle optically couples to one or more light-bearing conduits. Various sizes of conduit can be utilized and the conduits can be grouped or physically separated. One, some, or all of these light-bearing conduits may carry any or all of visible light, data-bearing light, and power conveying light for use by any of a variety of illumination components, data-capable components, and light-to-electricity conversion components, respectively. A given component may itself constitute both an illumination component and a data-capable component, or both an illumination component and a light-to-electricity conversion component, or both a data-capable component and a light-to-electricity conversion component, or a component that constitutes each of an illumination component, a data-capable component, and a light-to-electricity conversion component as desired.

A media converter has an electrical bus port for connecting a first electrical bus; and an optical bus port for connecting an optical bus. The media converter is configured to convert an electrical signal of the first electrical bus into an optical signal of the optical bus in such a way that, at a first value of an internal control signal of the media converter, the optical signal corresponds to the electrical signal and, at a second value of the internal control signal, the optical signal has an inverted shape corresponding to the electrical signal. In a transmission phase during which the internal control signal changes from the first value to the second value, the media converter is configured to emit the optical signal in such a way that the optical signal corresponds to the electrical signal until the end of the transmission phase.

A media converter has an electrical bus port for connecting a first electrical bus; and an optical bus port for connecting an optical bus. The media converter is configured to convert an electrical signal of the first electrical bus into an optical signal of the optical bus in such a way that, at a first value of an internal control signal of the media converter, the optical signal corresponds to the electrical signal and, at a second value of the internal control signal, the optical signal has an inverted shape corresponding to the electrical signal. In a transmission phase during which the internal control signal changes from the first value to the second value, the media converter is configured to emit the optical signal in such a way that the optical signal corresponds to the electrical signal until the end of the transmission phase.

A counter-directional optical network having multiple channels includes a source module connected with at least two network nodes by a fiber ribbon including an array of optical fibers. Each channel includes at least one optical fiber. The source module includes multiple signal sources, each signal source connected with one of the channels and operable to transmit a source signal in a direction in the channel. Each network node includes a modulator for processing the source signal with a data input signal forming a message signal, a switch for selecting one of the channels to transmit the message signal and a receiver connected with one of the channels for receiving a message signal from another node. The message signal is transmitted to the receiver of a receiving node in a direction opposite to the transmission direction of the source signal via the channel connected to the receiver of the receiving node.

A vehicle communication system includes a core module, a first terminal module, and a second terminal module. The core module is installed in a vehicle and includes a first switching hub, a second switching hub, and a core communication line bundle. The first and the second switching hubs relay the data. The core communication line bundle includes a core optical cable that propagates optical signals and a core electrical wire that conducts electrical signals. In the core communication line bundle, the core optical cable and the core electrical wire couple the first switching hub and the second switching hub for communication. In the core communication line bundle, the core optical cable has a larger communication traffic volume than that of the core electrical wire.

A method for communicating data between a vehicle and a ground system comprises receiving, by a vehicle bus multiplexer on the vehicle, the data via a plurality of vehicle data buses from an onboard system. The method further comprises multiplexing, by the vehicle bus multiplexer, the data into at least one data path of a multi-use power interface. Also, the method comprises transmitting, by the multi-use power interface via at least one data path, the data from the vehicle bus multiplexer to a ground bus multiplexer associated with the ground system. In addition, the method comprises demultiplexing, by the ground bus multiplexer, the data from at least one data path of the multi-use power interface into a plurality of ground data buses associated with the ground system. Further, the method comprises transmitting, by the ground bus multiplexer, the data via the plurality of ground data buses to the ground system.

A line replacement unit includes a terminal controller, and a plastic optical fiber serial interface module (POFSIM) coupled between the terminal controller and the data bus. The POFSIM is configured to transmit digital optical signals to the data bus based on electrical signals received from the terminal controller, and transmit electrical signals to the terminal controller based on digital optical signals received from the data bus.