Abstract: A living body sensor includes a flexible substrate including a body section; a first pad section, at one longitudinal directional end of the body section via a first constricted section, including a first electrode to be attached to a living body; a second pad section, at another longitudinal directional end of the body section via a second constricted section, including a second electrode to be attached to the living body; an obtaining section for obtaining biological information through the first second electrodes; a wireless communication section for transmitting the biological information; a component mounting section at the first constricted section side of the body section; and a battery setting section at the second constricted section side of the body section for setting a battery supplying power to the component mounting section. These sections are formed integrally with the flexible substrate.

Abstract: A biosensor includes an electrode configured to be attached to a living body; a memory configured to store the biological information; and a processing circuit configured to operate either in an operation checking mode and a biological information recording mode. The processing circuit, during the operation checking mode, wirelessly transmits the obtained biological information, and transitions to the biological information recording mode upon receiving a recording start command from an outside, and during the biological information recording mode, writes the obtained biological information to the memory.

Abstract: A data acquisition device includes an integrated circuit and an information processor. The integrated circuit has a first terminal for receiving a master/slave switching signal upon start of data acquisition, an ADC for converting analog input data to digital data, and an output terminal for outputting the digital data. The information processor generates the master/slave switching signal, and has a second terminal connected to the first terminal and for outputting the master/slave switching signal, and an input terminal connected to the output terminal and for receiving the digital data. The information processor operates in the master mode when the integrated circuit operates in the slave mode. The information processor operates in the slave when the integrated circuit operates in the master mode. The integrated circuit outputs the digital data when operating in the master mode according to the master/slave switching signal.

Abstract: A transmitter includes: an output driver that outputs differential signals to differential signal lines; first termination resistors and a first switch which are provided in series between a first reference voltage input terminal to which a reference voltage is inputted and the differential signal lines; a pulse generator that outputs a common-mode pulse to the differential signal lines during a period during which a pulse output instruction signal is at a significant level; and a detector that outputs a detection result signal indicating a magnitude relationship between a voltage level of the common-mode pulse and a threshold, during a period during which the pulse output instruction signal is at a significant level, and outputs a detection result signal indicating that the voltage level of the common-mode pulse does not exceed the threshold, during a period during which the pulse output instruction signal is at a non-significant level.

Abstract: A transmitter includes: an output driver that outputs differential signals to differential signal lines; first termination resistors and a first switch which are provided in series between a first reference voltage input terminal to which a reference voltage is inputted and the differential signal lines; a pulse generator that outputs a common-mode pulse to the differential signal lines; a second switch provided between the differential signal lines and the pulse generator; a detector that detects, after generation of the common-mode pulse starts, timing at which a voltage level of the common-mode pulse exceeds a threshold; and a controller that places the second switch in an on state to connect the pulse generator to the differential signal lines, and powers down the output driver and then places the first switch in an off state to allow the pulse generator to output the common-mode pulse to the differential signal lines.

Abstract: A transmitter includes: an output driver that outputs differential signals to differential signal lines; first termination resistors and a first switch which are provided in series between a first reference voltage input terminal to which a reference voltage is inputted and the differential signal lines; a pulse generator that outputs a common-mode pulse to the differential signal lines; a second switch provided between the differential signal lines and the pulse generator; a detector that detects, after generation of the common-mode pulse starts, timing at which a voltage level of the common-mode pulse exceeds a threshold; and a controller that places the second switch in an on state to connect the pulse generator to the differential signal lines, and powers down the output driver and then places the first switch in an off state to allow the pulse generator to output the common-mode pulse to the differential signal lines.

Abstract: A transmitter includes: an output driver that outputs differential signals to differential signal lines; first termination resistors and a first switch which are provided in series between a first reference voltage input terminal to which a reference voltage is inputted and the differential signal lines; a pulse generator that outputs a common-mode pulse to the differential signal lines during a period during which a pulse output instruction signal is at a significant level; and a detector that outputs a detection result signal indicating a magnitude relationship between a voltage level of the common-mode pulse and a threshold, during a period during which the pulse output instruction signal is at a significant level, and outputs a detection result signal indicating that the voltage level of the common-mode pulse does not exceed the threshold, during a period during which the pulse output instruction signal is at a non-significant level.