Abstract: A wireless communication system includes: a dividing unit to divide data into a plurality of first code blocks; a generation unit to generate first error detection information for each of the plurality of code blocks; a transmission unit to wirelessly transmit at least one of the plurality of first code blocks using a first channel and the first error detection information using a second channel; a reception unit to receive a plurality of second code blocks and second error detection information transmitted wirelessly; and a detection unit to execute error detection on each of the plurality of second code blocks using the second error detection information and to control a continuation of the error detection for the code blocks based on a result of the error detection.

Abstract: A wireless communication system includes: a dividing unit to divide data into a plurality of first code blocks; a generation unit to generate first error detection information for each of the plurality of code blocks; a transmission unit to wirelessly transmit at least one of the plurality of first code blocks using a first channel and the first error detection information using a second channel; a reception unit to receive a plurality of second code blocks and second error detection information transmitted wirelessly; and a detection unit to execute error detection on each of the plurality of second code blocks using the second error detection information and to control a continuation of the error detection for the code blocks based on a result of the error detection.

Abstract: Truncated quadrangular pyramids 402 to be ABSs 15b, a quadrangular pyramid 401 to be a near field optical element 16, and metal films 303 and 304 formed on the quadrangular pyramid 401 are formed on the under surface of a substrate to be a near field optical head 15, the metal films 303 and 304 are electrically connected to an ohmmeter 405 through a conductive interconnect 18. A flat polishing material 404 arranged so as to face to the under surface of the substrate is used to polish the truncated quadrangular pyramid 402, the quadrangular pyramid 401, and the metal films 303 and 304 so that a top face 301e of the near field optical element 16 is in a predetermined size and the top face 301e and the ABSs 15b are in the same plane. At this time, the electrical resistance of the metal films 303 and 304 is changed by being polished, and the ohmmeter 405 detects the end point in the polishing step.

Abstract: When an information length N is divided by a division length L, if the number of divisions including the remainder is 2n, then backward probabilities are calculated from the Nth backward probability in the reverse direction to the (n+1)th section and backward probabilities at division points are stored as discrete values, and in parallel with these backward probability calculations, forward probabilities are calculated from the first forward probability in the forward direction to the nth section and the forward probabilities at division points are stored as discrete values. Subsequently, the backward probabilities and forward probabilities stored as discrete values are used to calculate backward probabilities and forward probabilities for each section, and using these probabilities, decoding results are calculated in sequence for all sections.