Abstract: According to an embodiment, a semiconductor device includes an error corrector, a read controller, and a majority processor. The error corrector is configured to perform error correction on data read from a storage, and output the number of errors contained in the data when errors cannot be corrected by the error correction. The read controller is configured to read pieces of data from a first address in the storage according to respective read conditions, select, from the read conditions, a read condition corresponding to a smallest of the numbers of errors obtained by the error correction performed on the pieces of data corresponding to the respective read conditions, and perform reading from the first address multiple times according to the selected read condition. The majority processor is configured to perform a majority process between a plurality of pieces of data obtained by the multiple times of reading.

Abstract: According to an embodiment, a semiconductor device includes an error corrector, a read controller, and a majority processor. The error corrector is configured to perform error correction on data read from a storage, and output the number of errors contained in the data when errors cannot be corrected by the error correction. The read controller is configured to read pieces of data from a first address in the storage according to respective read conditions, select, from the read conditions, a read condition corresponding to a smallest of the numbers of errors obtained by the error correction performed on the pieces of data corresponding to the respective read conditions, and perform reading from the first address multiple times according to the selected read condition. The majority processor is configured to perform a majority process between a plurality of pieces of data obtained by the multiple times of reading.

Abstract: A superconductor filter is stored in a hermetic filter case so that electrical connection can be provided between the superconductor filter and the outside of the hermetic filter case. The hermetic filter case is stored in a hermetic outer case so that electrical connection can be provided between the superconductor filter and the outside of the hermetic outer case and so that air/gas flow through pipes can be implemented between the inside of the hermetic filter case and the outside of the hermetic outer case. The hermetic filter case and the hermetic outer case are evacuated into vacuum, and the superconductor filter is cooled below its critical temperature. After the superconducting state of the superconductor filter could be observed, gas that does not deteriorate or react with the superconductor filter is gradually packed in the hermetic filter case and thereby the dielectric constant around the superconductor filter is raised from the dielectric constant of vacuum.

Abstract: Disclosed is a surface mounting type isolator, which comprises: ferrite 1 having an internal magnetic field so as to render an external magnetic field unnecessary; ceramic substrate 5 into which ferrite 1 is inserted; full-surface grounding conductor 7 disposed on one surface of ceramic substrate 5; branch lines 2, 3 disposed on the other surface of ceramic substrate 5, branch lines 2,3 being connected to two input/output terminals 11, 12; connecting portion 4 disposed on ferrite 1 and connected to branch lines 2, 3; and terminating resistor 6 connected to connecting portion 4.

Abstract: A microstrip band elimination filter is disclosed, that comprises a microstrip main line 1 that is bend in a rectangular shape, and 1/4.lambda. stubs 2, 3, and 4 that are vertically connected to the microstrip main line 1 at intervals of 1/4.lambda., the edge of each of the 1/4.lambda. stubs 2, 3, and 4 being bent.