Abstract: A cleaning apparatus, including a handle, a holder fixed to the handle, a device for detecting an area to be cleaned covered by the cleaning apparatus, and a detector which detects a relative position and/or relative movement of the cleaning apparatus with respect to the area to be cleaned. A mop is replaceably fixable to the holder. The detector is configured to use the relative position and/or relative movement detected by the detector to detect that the mop is being sent for replacement or for a rinsing process and the detector thereupon automatically resets the area determined by the device.

Abstract: The invention relates to a measuring device and to a method for determining at least one respiratory parameter, wherein an electromagnetic field is irradiated into a body and is received on an opposite side of the body, then a phase of the received alternating field is compared in a time-dependent manner to a phase of the irradiated alternating field, and the at least one respiratory parameter is determined from a result of the comparison.

Abstract: There is provided an interface circuit, a network switch or network device coupler incorporating the interface circuit, and a network incorporating the network switch or network device. The interface circuit has a data bus interface (7) for connecting a data bus to either a first device (6) that communicates in a first signalling protocol or a second device (6) that communicates in a second signalling protocol. The data bus has two bus conductors that provide combined power and data. A voltage source (12) powers the data bus. The voltage source (12) is connected to the data bus via a reactance (10) and then a first resistance (4) connected in series. An output of a transmitter (13) is connected via a second resistance (3) to a point between the reactance (10) and the first resistance, to modulate the data bus.

Abstract: There is provided an interface circuit, a network switch or network device coupler incorporating the interface circuit, and a network incorporating the network switch or network device. The interface circuit has a data bus interface (7) for connecting a data bus to either a first device (6) that communicates in a first signalling protocol or a second device (6) that communicates in a second signalling protocol. The data bus has two bus conductors that provide combined power and data. A voltage source (12) powers the data bus. The voltage source (12) is connected to the data bus via a reactance (10) and then a first resistance (4) connected in series. An output of a transmitter (13) is connected via a second resistance (3) to a point between the reactance (10) and the first resistance, to modulate the data bus.