Abstract: Multiplexer (100) according to the present invention includes: an input unit (11) to which a plurality of image signals based on a first data communication standard are input, the image signals being acquired by respective imaging devices (2); an output unit (14) that outputs an image signal based on a second data communication standard having a data transfer rate lower than that of the first data communication standard; and a storage unit (12) that temporarily buffers the image signals input from the input unit (11). With such a multiplexer 100, it is possible to collectively convert the image data acquired by a plurality of imaging devices adopting a certain data communication standard into another data communication standard and suppress the data transfer delay caused by the conversion.

Abstract: A method for charging a rechargeable battery by using a charge power supply that charges the rechargeable battery at constant voltage is provided. A pulse charge operation is performed at a charge process start. The charge process is stopped when current in the pulse charge operation is not greater than a predetermined value and it is determined that the rechargeable battery is in a full-charge state. On the other hand, the rechargeable battery is charged at constant voltage when the current in the pulse charge operation is greater than the predetermined value.

Abstract: A method for charging a secondary battery with a constant current, in which a peak of output voltage is detected by utilizing a predetermined current value, and then the battery continues to be charged with a current value lower than the predetermined current value, so that the peak of output voltage or a voltage drop subsequent to the peak is detected, or alternatively a timer may be used, for termination of the charging operation.

Abstract: A method for charging a rechargeable battery by using a charge power supply that charges the rechargeable battery at constant voltage is provided. A pulse charge operation is performed at a charge process start. The charge process is stopped when current in the pulse charge operation is not greater than a predetermined value and it is determined that the rechargeable battery is in a full-charge state. On the other hand, the rechargeable battery is charged at constant voltage when the current in the pulse charge operation is greater than the predetermined value.

Abstract: A method is disclosed for charging a secondary battery with a constant current, in which method a peak of output voltage is detected by utilizing a predetermined current value, and then the battery continues to be charged with a current value lower than the predetermined current value, so that the peak of output voltage or a voltage drop subsequent to the peak is detected, or alternatively a timer may be used, for termination of the charging operation.

Abstract: The method of charging a plurality of batteries uses a charging power supply to pulse charge a plurality of batteries to full charge by time-division switching of the battery being charged. Further, this charging method moves timing intervals forward to begin charging the next battery when charging of a fully charged battery is stopped.

Abstract: The method of charging a plurality of batteries uses a charging power supply to pulse charge a plurality of batteries to full charge by time-division switching of the battery being charged. Further, this charging method moves timing intervals forward to begin charging the next battery when charging of a fully charged battery is stopped.