Abstract: A radio-frequency module including a module substrate, a plurality of electronic components, a plurality of external connection terminals, a resin member, and a plurality of electrodes. The module substrate has first and second major surfaces that are opposite to each other. The plurality of electronic components are disposed at the major surface and at the major surface. The external connection terminals are disposed at the major surface and include a first external connection terminal. The resin member is disposed at the major surface. The plurality of electrodes are disposed at the major surface and coupled to the plurality of external connection terminals. The plurality of electronic components include a passive component disposed at the major surface. At least a portion of the first external connection terminal overlaps at least a portion of the passive component in plan view of the module substrate.

Abstract: A surface inspection apparatus includes an imaging device configured to image a surface of an object to be inspected, and a processor configured to: calculate a numerical value representing a quality of the surface by processing an image captured by the imaging device, and receive a change in a range used to calculate the numerical value indicated by an index in the image.

Abstract: A disk unit, such as a magnetic disk unit, has a temperature sensor, a humidity sensor, a heater, a Peltier element, etc. The disk unit heats and cools in accordance with temperature and humidity. The disk unit has a double-structure of outline comprising a first outline and a second outline surrounding said first outline, so that an internal environment is isolated from an external environment.

Abstract: A disk unit, such as a magnetic disk unit, has a temperature sensor, a humidity sensor, a heater, a Peltier element, etc. The disk unit heats and cools in accordance with temperature and humidity. The disk unit has a double-structure of outline comprising a first outline and a second outline surrounding said first outline, so that an internal environment is isolated from an external environment.

Abstract: A maximum-likelihood decoding method for decoding an input signal subject to intersymbol interference. An assumption is made of a measure of an interference caused by a future signal that is later in a sequence than an assumed data sequence, on the basis of a predetermined bits of sample values of said input signal that are earlier in a sequence than an assumed data sequence stored in an assumed path memory (104). An assumed sample value of said input signal by referring to this measure of interference. Maximum-likelihood decoding is conducted on said input signal, on the basis of this assumed sample value and a sample value of said input signal; a plurality of survivor paths are generated and stored in a path memory (102); data for the most likely one of survivor paths is output as a decoded data sequence.