Abstract: A distance measurement system includes a pair of cameras and is arranged on a roof of a mobile object or an upper edge portion of a door of the mobile object. One of the cameras is arranged at a first portion on an upper surface of the roof or on the upper edge portion of the door, includes an optical axis oriented upward from the upper surface, and has a field of view in all directions around the optical axis. The other camera is arranged at a second portion different from the first portion on the upper surface of the roof or the upper edge portion of the door, includes an optical axis oriented upward from the upper surface, and has a field of view in all directions around the optical axis. Distance measurement in all directions from the mobile object is performed by using this pair of cameras.

Abstract: A distance measurement system includes a pair of cameras and is arranged on a roof of a mobile object or an upper edge portion of a door of the mobile object. One of the cameras is arranged at a first portion on an upper surface of the roof or on the upper edge portion of the door, includes an optical axis oriented upward from the upper surface, and has a field of view in all directions around the optical axis. The other camera is arranged at a second portion different from the first portion on the upper surface of the roof or the upper edge portion of the door, includes an optical axis oriented upward from the upper surface, and has a field of view in all directions around the optical axis. Distance measurement in all directions from the mobile object is performed by using this pair of cameras.

Abstract: A shared memory system provides an access monitoring mechanism 112 with a definition for taking clusters for motion picture attributes as pieces of cluster memory 1 and 2. When a DSP (2) 104 makes access to memory while adding attribute information about an image to the access, the access monitoring mechanism 112 outputs to a cluster memory space selector 119 control information 131 that permits making of access to the pieces of cluster memory 1 and 2. Based on the control information 131, the cluster memory space selector 119 sorts access from the DSP (2) 104 to the cluster memory 1 or 2. The same also applies to access from a GPU 105. A plurality of master processors share shared memory 110 divided into a plurality of clusters 111, thereby holding coherence of cache memory.

Abstract: The dynamic DC offset canceling apparatus includes: section 104 that detects dynamic DC offset in longest overlapping part sequences from the differences between the sampling values of a first longest overlapping part sequence and the sampling values of a second longest overlapping part sequence, the first longest overlapping part sequence and the second longest overlapping part sequence being overlapping part sequences in a training sequence of the received signal; section 105 that detects dynamic DC offset outside the longest overlapping part sequences from the difference between an average value of sampling values of a received signal which exists in a burst before the first longest overlapping part sequence, and an average value of sampling values of a received signal which exists in a burst after the second longest overlapping part sequence; and section 106 that adaptively subtracts a DC offset value from the received signal based on these results.

Abstract: The dynamic DC offset canceling apparatus includes: section 104 that detects dynamic DC offset in longest overlapping part sequences from the differences between the sampling values of a first longest overlapping part sequence and the sampling values of a second longest overlapping part sequence, the first longest overlapping part sequence and the second longest overlapping part sequence being overlapping part sequences in a training sequence of the received signal; section 105 that detects dynamic DC offset outside the longest overlapping part sequences from the difference between an average value of sampling values of a received signal which exists in a burst before the first longest overlapping part sequence, and an average value of sampling values of a received signal which exists in a burst after the second longest overlapping part sequence; and section 106 that adaptively subtracts a DC offset value from the received signal based on these results.

Abstract: A modulation scheme deciding apparatus, a receiving apparatus, a modulation scheme deciding method and modulation scheme deciding program can improve a performance of the frame modulation scheme decision without the influence of an error in the modulation scheme decision in each burst and improve throughput of the receiving apparatus. Receiver 100 has modulation scheme deciding apparatus 106, the modulation scheme deciding apparatus 106 including: received quality measuring apparatus 101 that measures received qualities of received data transmitted from a plurality of bursts separated from one frame; frame modulation scheme deciding apparatus 102 that decides a modulation scheme of frame based on received qualities of a plurality of modulation schemes measured in each burst; and burst modulation scheme deciding apparatus 103 that decides the modulation scheme of each burst based on the received quality of received data.

Abstract: A DC offset removal apparatus and a DC offset removal method that can highly accurately detect and remove a DC offset within a burst and that have a relatively small processing load. DC offset compensating processing section 101 includes maximum value searching section 104 that calculates maximum value estimation value MAX of received signals; minimum value searching section 105 that calculates minimum value estimation value MIN of the received signals; average value calculating section 106 that calculates average value AVE of the received signals; DC offset detecting section 107 that calculates a DC offset value based on the calculated maximum value estimation value MAX, minimum value estimation value MIN and average value AVE; and DC offset removal section 108 that removes the calculated DC offset value from the received signal. When |AVE?(MAX+MIN)/2|?K, AVE+{(MAX+MIN)/2?AVE}×W is used as the DC offset value, and, when |AVE?(MAX+MIN)/2|<K, AVE is used as the DC offset value.

Abstract: A decoding apparatus and communication system receiver are provided that enable reception performance to be improved in a packet communication system in which the HARQ method is used. In a receiver in a communication system and a decoding apparatus of this receiver there are provided a reception quality measuring apparatus 6, a weighting apparatus 700, and a data generation apparatus 7. Reception quality measuring apparatus 6 measures reception qualities Q1 and Q2 of a first receive data sequence Pr1 that failed to be decoded and a second receive data sequence Pr2 retransmitted based on a Hybrid Automatic Repeat Request (HARQ). Weighting apparatus 700 compares measured reception qualities Q1 and Q2, performs high weighting for the one with the higher reception quality, and performs low weighting for the one with the lower reception quality.