A transmitting apparatus and method for adjusting a gain of a signal to be transmitted and a receiving apparatus and method for adjusting a gain of a received signal and a receiving apparatus and method for adjusting a gain of a received signal are disclosed in Japanese Unexamined Patent Appl. )

摘要

To a transmission apparatus capable of suppressing unnecessary power consumption. The plurality of signal lines 53-56 having different gain values are amplified by the signal amplifying means so that the power consumption of each signal amplifying means is optimized according to the gain value and the operation of the signal amplifying means of the unselected signal lines is stopped, And performs gain adjustment on the signal to be transmitted, which is applied to the input terminal 58. Therefore, unnecessary power consumption is suppressed.