Patent ID: 8542091
Filing Date: 2013-09-24
Classification: G06K

Abstract:
1. A wireless system comprising: a base station and a terminal station, wherein the base station comprises wherein both data transmission and power transmission between the base station and the terminal station are performed using a same carrier waveform, wherein the controller controls the peak value of the transmission output received by the terminal station to constantly exceed a threshold value of a rectifying element of the terminal station, wherein the wireless system employs an electromagnetic wave propagating space as a communication medium, and performs a waveform-equalized intermittent transmission between the base station and the terminal station, wherein the controller controls the peak value and the duty ratio using a frequency spectrum of an electromagnetic wave which is reradiated from the terminal station, and of which the reradiated frequency spectrum possesses a frequency component not included in a frequency spectrum of the transmission power of the base station, wherein the base station further comprises a detector configured to detect the reradiated frequency spectrum of the electromagnetic wave from the terminal station, and of which the reradiated frequency spectrum possesses a frequency component not included in the frequency spectrum of transmission power of the base station, wherein the controller increases the peak value of the transmission power and decreases the duty ratio of the intermittent transmission, when the frequency spectrum is not detected, if an average power value of the transmission power remains within a predetermined value range, wherein the wireless system further comprises an equalizing base station antenna and a terminal station antenna, and wherein a transmitted wave from the base station to the terminal station is transmitted by the equalizing base station antenna which produces, in advance, a distortion of an inverse characteristic to a distortion that the terminal station antenna produces.