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Ban; Koichiro
Kawasaki, JP
No. of patents:

Patent Number Title Of Patent Date Issued
8577946 Signal receiving apparatus and communication system November 5, 2013
There is provided a signal receiving apparatus including first to pth stage computers configured to apply, in a step-by-step manner, butterfly operations to 2.sup.N input values; and 2.sup.N registers configured to store values obtained by a p-1th stage computer wherein the pth stage
8571150 Frequency offset compensation apparatus October 29, 2013
According to one embodiment, a frequency offset compensation apparatus includes a first estimation unit, a second estimation unit, a setting unit, a synthesis unit and a compensation unit. The first estimation unit estimates a first rotation. The second estimation unit estimates a second
8201063 Transmitter and receiver June 12, 2012
There is provided with a transmitter including: an input unit configured to input a data symbol sequence; a block generator configured to sequentially generate data blocks each including a plurality of data symbols by using the data symbol sequence; an addition unit configured to add
8094553 Base station, radio terminal and radio communication method January 10, 2012
According to an aspect of the present invention, there is provided with a radio communication method using an OFDMA scheme for uplink communication from a plurality of radio terminals to a base station, including: detecting communication states of the radio terminals; and arranging null
8036310 Transmitter and receiver October 11, 2011
There is provided with a transmitter including: a pilot generation unit configured to generate a plurality of pilot symbols; a bit sequence generation unit configured to invert each bit in a first bit sequence to generate a second bit sequence; a transmission block generation unit co
7557752 Apparatus and method for communication July 7, 2009
There is provided a communication method including: generating a channel estimated value for each antenna by performing channel estimation using a received signal by each antenna; calculating reception weights by which subcarriers assigned the received signal of each antenna are to be

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