Patent ID: 9654186
Date: 2017-05-16
CPC Classifications: H03G,H04B

Claim:
1. A portable terminal comprising: an antenna; a communication unit; an N-bit counter, with N being a natural number; and a gain change unit, the communication unit having two modes of an active mode in which the communication unit itself outputs carrier waves and a passive mode in which carrier waves output from another device are used, the communication unit being configured to attempt communication through electromagnetic induction by using the antenna with alternately switching between the two modes and to communicate without switching between the modes while communication is established, the N-bit counter being configured to output a value that varies by a unit number each time switching to at least one of the two modes is made in the communication unit, and the gain change unit being configured to change a gain of a signal received at the antenna by the communication unit in accordance with the value output from the N-bit counter.