Abstract: A high frequency switch configured to switch paths of differential signals arranged in an integrated circuit. The high frequency switch includes a pair of pole terminals and a plurality of pairs of throw terminals. The pair of pole terminals constitutes one port. Each pair of throw terminals constitutes another port.

Abstract: A semiconductor integrated circuit includes an input terminal, an output terminal, and a multi-stage connection unit including multiple MOS transistors connected in multiple stages between the input terminal and the output terminal. The MOS transistors include an input stage transistor connected to the input terminal and an output stage transistor connected to the output terminal. A thickness of a gate dielectric of the output stage transistor is equal to a thickness of a gate dielectric of the input stage transistor, and a gate length of the output stage transistor is longer than a gate length of the input stage transistor.

Abstract: A high frequency switch configured to switch paths of differential signals arranged in an integrated circuit. The high frequency switch includes a pair of pole terminals and a plurality of pairs of throw terminals. The pair of pole terminals constitutes one port. Each pair of throw terminals constitutes another port.

Abstract: An information storage device includes a storage that stores transfer data from an information processing device, the information storage device being removably connected to the information processing device, a switch unit that switches a data transfer mode of the information processing device in accordance with manipulation by a user, and a controller that controls the information processing device to transfer data in a mode in which data temporarily stored in a data storing area is transferred to the storage or in a mode in which data is transferred to the storage without being temporarily stored in the data storing area in accordance with the selection of the data transfer mode by the switch unit.

Abstract: A signal processing device includes a detecting part that detects intensity of an input signal, a timer part that includes a time constant circuit and measures time based on a time constant of the time constant circuit, and a determination circuit that counts the number of times of switching of the input signal detected by the detecting part within the time measured by the time constant circuit.

Abstract: A signal processing device includes a detecting part that detects intensity of an input signal, a timer part that includes a time constant circuit and measures time based on a time constant of the time constant circuit, and a determination circuit that counts the number of times of switching of the input signal detected by the detecting part within the time measured by the time constant circuit.

Abstract: An information storage device includes a storage that stores transfer data from an information processing device, the information storage device being removably connected to the information processing device, a switch unit that switches a data transfer mode of the information processing device in accordance with manipulation by a user, and a controller that controls the information processing device to transfer data in a mode in which data temporarily stored in a data storing area is transferred to the storage or in a mode in which data is transferred to the storage without being temporarily stored in the data storing area in accordance with the selection of the data transfer mode by the switch unit.