Abstract: Systems and methods for optical data interconnection are described. One aspect includes a first signal converter that converts first high-speed HDMI electrical signals into high-speed HDMI optical signals, and transmits the optical signals over a first optical communication channel. A second signal converter encodes first low-speed HDMI electrical signals, converts these encoded signals into low-speed HDMI optical signals, and transmits these optical signals over a second optical communication channel. A third signal converter receives the high-speed HDMI optical signals, and converts these optical signals to second high-speed HDMI electrical signals. A fourth signal converter receives the low-speed HDMI optical signals, converts these optical signals to second low-speed HDMI electrical signals, and decodes the second low-speed HDMI electrical signals.

Abstract: Systems and methods for optical data interconnection are described. One aspect includes detecting a first HDMI connection of a first terminal of an optical connector. A second HDMI connection of a second terminal of the optical connector may be detected. One aspect includes determining that the first HDMI connection is associated with an HDMI source, and determining that the second HDMI connection is associated with an HDMI sink. Responsive to determining that the first HDMI connection is associated with the HDMI source, an HDMI transmission mode is selected for the first terminal. Responsive to determining that the second HDMI connection is associated with the HDMI sink, an HDMI reception mode is selected for the second terminal. The first terminal and the second terminal may perform HDMI optical communication via an optical communication channel.

Abstract: Optical fiber interconnection systems and methods are described. One aspect includes receiving a pulse-amplitude modulated (PAM4) electrical signal at a transmitter for transmission to a receiver. The PAM4 electrical signal is decoded into a pair of non-return-to-zero (NRZ) electrical signals. The pair of NRZ electrical signals is converted into a corresponding pair of NRZ optical signals including a first NRZ optical signal and a second NRZ optical signal. The first NRZ optical signal is transmitted to a receiver over an communication channel. The second NRZ optical signal is transmitted to the receiver over the optical communication channel.

Abstract: Systems and methods to implement a USB and Thunderbolt optical signal transceiver are described. One method includes detecting presence of a USB sideband signal received over an optical communication channel and associated with a USB communication request. Responsive to the detecting, the method may determine that the USB communication request corresponds to a USB communication mode and perform a sideband negotiation. The USB communication mode may be enabled. A specified number of channels associated with the USB communication request may be determined. USB communication may be performed using the specified number of channels over the optical communication channel in the USB communication mode.

Abstract: Systems and methods to implement a USB and Thunderbolt optical signal transceiver are described. One method includes detecting presence of a USB sideband signal received over an optical communication channel and associated with a USB communication request. Responsive to the detecting, the method may determine that the USB communication request corresponds to a USB communication mode and perform a sideband negotiation. The USB communication mode may be enabled. A specified number of channels associated with the USB communication request may be determined. USB communication may be performed using the specified number of channels over the optical communication channel in the USB communication mode.

Abstract: Systems and methods for signal communication over an optical link are described. One aspect includes receiving a source CONFIG1 signal from a DP master device and a sink CONFIG1 signal from a sink terminal. The source and sink CONFIG1 signals are analyzed. It is determined whether a signal transmission mode is a DP protocol. For a DP protocol, a pair of source AUX signals is received from the DP master device. A pair of sink AUX signals is received from the sink terminal. Communication resource contention between the source and sink AUX signals is identified. A communication direction of the communication resources is transitioned to give the source AUX signals precedence over the sink AUX signals. The source AUX signals are transferred to the sink terminal via the communication resources. The direction of the communication resources is again transitioned. The sink AUX signals are transferred to the DP master device.

Abstract: Systems and methods for HDMI signal communication over an optical communication link are described. One aspect includes receiving an HDMI control signal from an HDMI master device, and another HDMI control signal from an HDMI sink terminal via a communication resources. The method identifies half-duplex communication resource contention between the HDMI control signal and the other HDMI control signal, and transitions a communication direction of the half-duplex communication resources to give the HDMI control signal precedence over the other HDMI control signal. Subsequent to transitioning the communication direction, the method transfers the HDMI control signal to the HDMI sink terminal via the communication resources. Subsequent to transferring the HDMI control signal, the method again transitions the direction of the half-duplex communication resources, and transfers the other HMDI control signal to the HDMI master device.

Abstract: Methods for USB signal communication over an optical link are described. One aspect includes detecting connection of a device circuit to a USB device. The detecting may further include transmitting an electrical pulse through a reactive network, and detecting a change in a delay associated with the electrical pulse responsive to connecting the device circuit to the USB device. An optical signal associated with the detected connection may be transmitted to a host circuit via an optical communication channel.

Abstract: Voltage converter systems and methods are described. One aspect includes extracting energy from one or more data lines. A feedback voltage is derived from the extracted energy. Responsive to the value of the feedback voltage being less than a reference voltage value, a waveform modulation controller is switched to a pulse-frequency modulation (PFM) mode. Subsequent to switching the waveform modulation controller to the PFM mode, additional energy is extracted from the one or more digital data lines. Another feedback voltage is derived from the additional extracted energy. Responsive to the value of other feedback voltage being greater than the reference voltage value, the waveform modulation controller is further switched from the PFM mode to a pulse-skipping modulation (PSM) mode.

Abstract: Systems and methods for HDMI signal communication over an optical communication link are described. One aspect includes receiving an HDMI control signal from an HDMI master device, and another HDMI control signal from an HDMI sink terminal via a communication resources. The method identifies half-duplex communication resource contention between the HDMI control signal and the other HDMI control signal, and transitions a communication direction of the half-duplex communication resources to give the HDMI control signal precedence over the other HDMI control signal. Subsequent to transitioning the communication direction, the method transfers the HDMI control signal to the HDMI sink terminal via the communication resources. Subsequent to transferring the HDMI control signal, the method again transitions the direction of the half-duplex communication resources, and transfers the other HDMI control signal to the HDMI master device.

Abstract: Systems and methods for signal communication over an optical link are described. One aspect includes receiving a source CONFIG1 signal from a DP master device and a sink CONFIG1 signal from a sink terminal. The source and sink CONFIG1 signals are analyzed. It is determined whether a signal transmission mode is a DP protocol. For a DP protocol, a pair of source AUX signals is received from the DP master device. A pair of sink AUX signals is received from the sink terminal. Communication resource contention between the source and sink AUX signals is identified. A communication direction of the communication resources is transitioned to give the source AUX signals precedence over the sink AUX signals. The source AUX signals are transferred to the sink terminal via the communication resources. The direction of the communication resources is again transitioned. The sink AUX signals are transferred to the DP master device.

Abstract: Systems and methods for HDMI signal communication over an optical communication link are described. One aspect includes receiving an HDMI control signal from an HDMI master device, and another HDMI control signal from an HDMI sink terminal via a communication resources. The method identifies half-duplex communication resource contention between the HDMI control signal and the other HDMI control signal, and transitions a communication direction of the half-duplex communication resources to give the HDMI control signal precedence over the other HDMI control signal. Subsequent to transitioning the communication direction, the method transfers the HDMI control signal to the HDMI sink terminal via the communication resources. Subsequent to transferring the HDMI control signal, the method again transitions the direction of the half-duplex communication resources, and transfers the other HMDI control signal to the HDMI master device.

Abstract: A method for separating diastereomers of pristane. A pristane sample is prepared, and then injected into a chromatographic instrument equipped with a chiral chromatographic column, where a stationary phase of the chiral chromatographic column has a preset pore size. The pristane diastereomers in the pristane sample are separated by the chiral chromatographic column, and the components produced by the separation of the pristane diastereomers sequentially enter a mass spectrometer for detection and analysis.

Abstract: Systems and methods related to battery triggering for activation of an optical data interconnect system are described. One aspect includes signal conversion electronics configured to convert received optical signals to an electrical signal. A battery triggering circuit may trigger a sink responsive to detecting connection of the electronics to the sink. An amplifier may convert the electrical signal to differential electrical signals and transmit the signals to the sink. A first and a second conductor may interface the amplifier with a sink side resistor network powered responsive to the triggering the sink, and conduct a composite signal including the differential electrical signals and a power signal from the sink side resistor network. A filter connected to the conductors may receive the composite signal, filter a second power signal from the composite signal, and connect the second power signal to the amplifier and the battery triggering circuit via power distribution circuitry.

Abstract: Systems and methods related to battery triggering for activation of an optical data interconnect system are described. One aspect includes signal conversion electronics configured to convert received optical signals to an electrical signal. An amplifier may convert the electrical signal to differential electrical signals and transmit the differential electrical signals to a sink. A first conductor and a second conductor may interface the amplifier with a sink side resistor network. The first conductor and the second conductor may conduct a composite signal including the differential electrical signals and a first power signal from the sink side resistor network. A filter connected to the first conductor and the second conductor may be configured to receive the composite signal, and filter a second power signal from the composite signal that is at least a portion of the first power signal. A voltage regulator may connect the second power signal to the amplifier.

Abstract: Systems and methods related to battery triggering for activation of an optical data interconnect system are described. One aspect includes signal conversion electronics configured to convert received optical signals to an electrical signal. An amplifier may convert the electrical signal to differential electrical signals and transmit the differential electrical signals to a sink. A first conductor and a second conductor may interface the amplifier with a sink side resistor network. The first conductor and the second conductor may conduct a composite signal including the differential electrical signals and a first power signal from the sink side resistor network. A filter connected to the first conductor and the second conductor may be configured to receive the composite signal, filter a second power signal from the composite signal that is at least a portion of the first power signal, and connect the second power signal to the amplifier via power distribution circuitry.

Abstract: A system for optical data interconnect of a source and a sink includes a first HDMI compatible electrical connector able to receive electrical signals from the source. A first signal converter is connected to the first HDMI compatible electrical connector and includes electronics for conversion of TMDS or FRL electrical signals to optical signals, with the electronics including an optical conversion device connectable to source ground to reduce noise. At least one optical fiber is connected to the first signal converter. A second signal converter is connected to the at least one optical fiber and includes electronics for conversion of optical signals to TMDS or FRL electrical signals. A power module for the second signal converter provides power to an electrical signal amplifier connectable to sink ground. A second HDMI compatible electrical connector is connected to the second signal converter and able to send signals to the sink.

Abstract: A system for optical data interconnect of a source and a sink includes a first HDMI compatible electrical connector able to receive electrical signals from the source. A first signal converter is connected to the first HDMI compatible electrical connector and includes electronics for conversion of differential (including but not limited to TMDS and FRL) electrical signals to optical signals, with the electronics including an optical conversion device. At least one optical fiber is connected to the first signal converter. A second signal converter is connected to the at least one optical fiber and includes electronics for conversion of optical signals to HDMI standard TMDS or FRL electrical signals. A power module for the second signal converter includes a power tap connected to HDMI standard TMDS or FRL circuitry and a voltage regulator connected to the power tap to provide power to an electrical signal amplifier.

Abstract: A system for optical data interconnect of a source and a sink includes a first HDMI compatible electrical connector able to receive electrical signals from the source. A first signal converter is connected to the first HDMI compatible electrical connector and includes electronics for conversion of TMDS or FRL electrical signals to optical signals, with the electronics including an optical conversion device. At least one optical fiber is connected to the first signal converter. A second signal converter is connected to the at least one optical fiber and includes electronics for conversion of optical signals to differential electrical signals. A power module for the second signal converter includes a power tap connected to TMDS or FRL circuitry and a first voltage regulator connected to the power tap to provide power to an electrical signal amplifier. A rechargeable battery module is used to trigger power activation of connected ports, with the battery module being connected to the power tap.

Abstract: A method for separating diastereomers of pristane. A pristane sample is prepared, and then injected into a chromatographic instrument equipped with a chiral chromatographic column, where a stationary phase of the chiral chromatographic column has a preset pore size. The pristane diastereomers in the pristane sample are separated by the chiral chromatographic column, and the components produced by the separation of the pristane diastereomers sequentially enter a mass spectrometer for detection and analysis.