Abstract: The disclosure is inputting a first image obtained by capturing an object of authentication moving in a specific direction; inputting a second image at least for one eye obtained by capturing a right eye or a left eye of the object; determining whether the second image is of the left eye or the right eye of the object, based on information including the first image, and outputting a determination result associated with the second image as left/right information; comparing characteristic information relevant to the left/right information, the characteristic information being acquired from a memory that stores the characteristic information of a right eye and a left eye pertaining to object to be authenticated, with characteristic information associated with the left/right information, and calculating a verification score; and authenticating the object captured in the first image and the second image, based on the verification score, and outputting an authentication result.

Abstract: A first-aid information provision system of the example embodiments includes: an information display device that includes first capture means for capturing an iris image, code acquisition means for acquiring a code associated with the captured iris image, and code display means for displaying the acquired code; and an information output device that includes second capture means for imaging the code displayed by the information display device, first-aid information acquisition means for acquiring first-aid information about an individual associated with the iris image by using the imaged code, and first-aid information output means for outputting the first-aid information.

Abstract: An assignment section 101 determines communication resource assignment to communication terminals based on a transmission rate at which communication is possible for each subcarrier of each communication terminal, and instructs a buffer section 102 to output forward transmission data. In addition, the assignment section 101 instructs a frame creation section 103 to perform forward transmission data symbolization, and also outputs a signal indicating communication resource assignment to each communication terminal. The buffer section 102 holds forward transmission data, and outputs forward transmission data to the frame creation section 103 in accordance with instructions from the assignment section 101. The frame creation section 103 symbolizes a resource assignment signal and transmission data to create a frame, which it outputs to a spreading section 104.

Abstract: A reception apparatus and reception method for converting symbol data to a reception bit string efficiently with a small amount of calculation. A despreading section (110) despreads a received signal. A coherent detection section (120) carries out coherent detection of a despread signal obtained by despreading the received signal using a corrected channel estimate value output from an estimate value correction section (170). A RAKE combining section (130) RAKE-combines the signal subjected to coherent detection. A phase rotation section (140) adds phase rotation corresponding to a channelization code to the RAKE-combined signal. A QPSK demapping section (150) demodulates the signal output from the phase rotation section (140) and outputs a reception bit string. A channel estimation section (160) carries out channel estimation using the received signal. The estimate value correction section (170) adds (?/4) phase rotation to each channel estimate value output from the channel estimation section (160).

Abstract: Channel fluctuation estimating section 101 estimates fluctuation amount of the channel between transmitting apparatus 100 and receiving apparatus 200, and carrier number determining section 102 determines the number of subcarriers used in transmission of signal based on channel fluctuation amount. That is to say, in the case of a remarkably rapid channel fluctuation caused by fast fading, etc., carrier number determining section 102 deduces relatively the channel fluctuation between symbols or within a burst, by decreasing the subcarriers number and increasing symbol rate per one subcarrier.

Abstract: A sliding correlation between a received signal and a basic midamble is detected, and a delay profile is generated from a correlation value as a detection result of the sliding correlation, and thereafter averaging processing of the delay profiles is executed. Moreover, the path position of the received signal is detected from the averaged delay profile. In a CDMA communication system where the phase shift amount of a common midamble included in a transmitting signal changes according to the number of codes multiplexed, averaging processing with correlation value output from a correlator is surely executed either before or after correlation detection processing using the common midamble in order to improve the accuracy of path position estimation before the common midamble is identified.

Abstract: Synchronization code identification and synchronization timing detection are divided into two stages, with narrowing down of synchronization codes or synchronization timing being performed, or one or other being found precisely, based on rough correlation values between a received signal and candidate synchronization codes in the first stage processing (ST1 through ST7), and precise synchronization code identification and synchronization timing detection being performed in the second stage processing (ST8 through ST12).

Abstract: A CDMA radio transmission apparatus includes a spreader, a chip interleaver, and a transmitter. The spreader divides one symbol to a plurality of N chips equal to a number of a plurality of N slots contained in a frame, by spreading the one symbol by a spreading factor N equal to the number of the plurality of N slots contained in the frame. The chip interleaver performs a chip interleaving processing, whereby each of the plurality of N chips is equally assigned to each of the plurality of N slots. The transmitter operates to transmit the plurality of N slots in sequence.

Abstract: In a CDMA transmission, a quality of each symbol of a frame is held constant by interleaving spread chip, while overhead and interference amounts in other cells are reduced by easing a rate of transmission power control. Further, transmission power is decreased by discontinuing transmission at the time the quality is satisfied, thereby increasing the system capacity. Furthermore, it is possible to achieve more remarkable effect by performing inverse transmission power control.

Abstract: Received quality detecting section 108 detects a received quality, bit determining section 111 determines whether a TPC bit is 0 or 1, amplitude reading section 112 reads a ratio of an amplitude of a signal other than the TPC bit and an amplitude of the TPC bit, accumulating section 113 determines an increase or decrease of transmit power and an amount of the increase and decrease of the transmit power using a symbol of the TPC bit for the increase or decrease, and an amplitude ratio for the amount of the increase and decrease to instruct to transmission amplifier 104, and multiplying section 114 multiplies the amplitude of the signal other than the TPC bit by a correction value corresponding to the received quality to determine the amplitude of the TPC bit.

Abstract: Channel fluctuation estimating section 101 estimates fluctuation amount of the channel between transmitting apparatus 100 and receiving apparatus 200, and carrier number determining section 102 determines the number of subcarriers used in transmission of signal based on channel fluctuation amount. That is to say, in the case of a remarkably rapid channel fluctuation caused by fast fading, etc., carrier number determining section 102 deduces relatively the channel fluctuation between symbols or within a burst, by decreasing the subcarriers number and increasing symbol rate per one subcarrier.

Abstract: A multi-carrier CDMA communication apparatus that suppresses peak power of a multi-carrier signal while suppressing reduction of the transmission efficiency. Serial/parallel conversion section 101 converts transmission data with a single sequence to transmission data with a plurality of sequences. Spreading sections 102-1 to 102-4 perform spreading processing on transmission data with the 1st to 4th sequence. IFFT section 103 multiplexes the transmission data with the 1st to 4th sequence on the 1st to 4th subcarriers respectively to generate a multi-carrier signal. Peak detection section 104 detects peak power of the generated multi-carrier signal. Chip transmission stopping section 105 outputs a multi-carrier signal whose peak power is not greater than a threshold to D/A conversion section 106 using the detection result of peak detection section 104.

Abstract: An assignment section 101 determines communication resource assignment to communication terminals based on a transmission rate at which communication is possible for each subcarrier of each communication terminal, and instructs a buffer section 102 to output forward transmission data. In addition, the assignment section 101 instructs a frame creation section 103 to perform forward transmission data symbolization, and also outputs a signal indicating communication resource assignment to each communication terminal. The buffer section 102 holds forward transmission data, and outputs forward transmission data to the frame creation section 103 in accordance with instructions from the assignment section 101. The frame creation section 103 symbolizes a resource assignment signal and transmission data to create a frame, which it outputs to a spreading section 104.

Abstract: A serial/parallel converter 101 converts a single stream of transmit data to a plurality of streams of transmit data, outputs first-stream transmit data and fourth-stream transmit data to error correction coding sections 102 and 103, respectively, and outputs second-stream transmit data and third-stream transmit data to an IFFT section 106. The IFFT section 106 generates an OFDM signal using the second-stream transmit data and third-stream transmit data, together with first-stream and fourth-stream transmit data that has undergone error correction coding processing. A peak detector 107 detects peak power of the generated OFDM signal. If the detected peak power exceeds a threshold value, the IFFT section 106 re-generates an OFDM signal using a peak suppression signal from a peak suppression signal generator 108 instead of first-stream and fourth-stream transmit data.

Abstract: An assignment section 101 determines communication resource assignment to communication terminals based on a transmission rate at which communication is possible for each subcarrier of each communication terminal, and instructs a buffer section 102 to output forward transmission data. In addition, the assignment section 101 instructs a frame creation section 103 to perform forward transmission data symbolization, and also outputs a signal indicating communication resource assignment to each communication terminal. The buffer section 102 holds forward transmission data, and outputs forward transmission data to the frame creation section 103 in accordance with instructions from the assignment section 101. The frame creation section 103 symbolizes a resource assignment signal and transmission data to create a frame, which it outputs to a spreading section 104.

Abstract: An assignment section 101 determines communication resource assignment to communication terminals based on a transmission rate at which communication is possible for each subcarrier of each communication terminal, and instructs a buffer section 102 to output forward transmission data. In addition, the assignment section 101 instructs a frame creation section 103 to perform forward transmission data symbolization, and also outputs a signal indicating communication resource assignment to each communication terminal. The buffer section 102 holds forward transmission data, and outputs forward transmission data to the frame creation section 103 in accordance with instructions from the assignment section 101. The frame creation section 103 symbolizes a resource assignment signal and transmission data to create a frame, which it outputs to a spreading section 104.