BIO-SIGNAL MEASUREMENT APPARATUS, DOCKING APPARATUS AND METHODS OF THEIR COUPLING

A bio-signal measurement apparatus (10) comprises tool-less connectors (100A, 100B, 100C), coupling targets (102), a controllable coupling selection arrangement (104), and a control arrangement (106). The tool-less connectors (100A, 100B, 100C) contact with a separate docking apparatus (20) or an electrode arrangement (30). The coupling targets (102) include a battery (102A) and a data communication unit that performs a plug-and-play data transfer with the separate docking apparatus (20). The tool-less connectors (100A, 100B, 100C), the number of which is three, are electrically coupled with the controllable coupling selection arrangement (104), which electrically couples all the tool-less connectors (100A, 100B, 100C) with only one of the coupling targets (102) at a time in response to control from the control arrangement (106). The battery (102A) receives electricity from the tool-less connectors (100A, 100B, 100C) for charging the battery (102A) through the electric coupling caused by the coupling selection arrangement (104) under control of the control arrangement (106) during a first time window when the bio-signal measurement apparatus (10) is connected with the docking apparatus (20). The data communication unit sends and/or receives data through the tool-less connectors (100A, 100B, 100C) using the plug-and-play data transfer based on the electric coupling caused by the coupling selection arrangement (104) under control of the control arrangement (106) during a second time window when the bio-signal measurement apparatus is connected with the docking apparatus (20).