Abstract: The present invention is directed to a method for determining a force transmission contact point of an actuating element (6) of an electric clutch actuator which comprises a linear drive assembly configured to linearly move the actuating element (6) towards a preload plunger (10) which is linked by a pushrod (12) to a clutch lever (14) and to move the pushrod (12) to turn the clutch lever, characterized by including the steps: monitoring an oscillation of the pushrod (12) by monitoring the position of the pushrod (12) and determining in consecutive time periods at least one of a maximum, minimum and centre value of the pushrod position, deriving a measure of non-oscillatory movement of the pushrod (12) based on a difference between at least one of the respective maximum, minimum and centre values of the pushrod position in a current and at least one of the preceding time periods or based on a difference between a combination of the respective positions in the current and at least one of the preceding time per

Abstract: An optical wireless communications receiver includes a set of photodetectors and signal processing circuitry that receive and process optical communications signals to generate receive data. The receiver includes a spatial light modulator (SLM) and associated SLM controller. The SLM receives an incident optical communications signals from remote optical transmitters and selectively directs the received optical communications signals to the photodetectors to realize an SLM pattern according to SLM control signals from the SLM controller. A system controller establishes the SLM pattern and communicates a description of it to the SLM controller for use in generating the SLM control signals. The receiver may be used in a variety of applications, including so-called visible-light communications or VLC, in which data is transmitted over an optical link using light in the visible spectrum.

Abstract: An optical wireless communications receiver includes a set of photodetectors and signal processing circuitry that receive and process optical communications signals to generate receive data. The receiver includes a spatial light modulator (SLM) and associated SLM controller. The SLM receives an incident optical communications signals from remote optical transmitters and selectively directs the received optical communications signals to the photodetectors to realize an SLM pattern according to SLM control signals from the SLM controller. A system controller establishes the SLM pattern and communicates a description of it to the SLM controller for use in generating the SLM control signals. The receiver may be used in a variety of applications, including so-called visible-light communications or VLC, in which data is transmitted over an optical link using light in the visible spectrum.