Electronic circuit system, electronic circuit device, and wireless communication device

An electronic circuit system comprising a first electronic circuit device and a second electronic circuit device, the first electronic circuit device including a first antenna and a first electronic circuit connected to the first antenna, the second electronic circuit device including a plurality of second antennas and a second electronic circuit connected to one or more of the plurality of second antennas, the first and second electronic circuit devices establishing close-coupled wireless communication with each other in such a state that a part of the first electronic circuit device in which the first antenna is positioned and a part of the second electronic circuit device in which the plurality of second antennas are positioned face each other, wherein

• the second electronic circuit device further includes:
• a connection information generation unit configured to, when one or more of the plurality of second antennas each receive a communication connection update processing command transmitted from the first antenna, select one of the plurality of second antennas to be paired with the first antenna for use in close-coupled wireless communication, and generate connection information indicating that the selected second antenna is to be connected to the second electronic circuit;
• and
• a connection switching unit configured to switch the one or more second antennas connected to the second electronic circuit in accordance with the connection information.

An electronic circuit system comprising a first electronic circuit device and a second electronic circuit device, the first electronic circuit device including a plurality of first antennas and a first electronic circuit connected to one or more of the plurality of first antennas, the second electronic circuit device including a plurality of second antennas and a second electronic circuit connected to one or more of the plurality of second antennas, the first and second electronic circuit devices establishing wireless communication with each other in such a state that a part of the first electronic circuit device in which the plurality of first antennas are arranged and a part of the second electronic circuit device in which the plurality of second antennas are arranged face each other, wherein

• the first electronic circuit device further includes:
• a first connection information generation unit configured to select one or more of the plurality of first antennas to be paired with respective one or more of the plurality of second antennas for use in wireless communication, and generate first connection information indicating that the selected one or more first antennas are to be connected to the first electronic circuit;
• and
• a first connection switching unit configured to switch the one or more first antennas connected to the first electronic circuit in accordance with the first connection information, and
• the second electronic circuit device further includes:
• a second connection information generation unit configured to select one or more of the plurality of second antennas to be paired with respective one or more of the plurality of first antennas for use in wireless communication, and generate second connection information indicating that the selected one or more second antennas are to be connected to the second electronic circuit;
• and
• a second connection switching unit configured to switch the one or more second antennas connected to the second electronic circuit in accordance with the second connection information,
• the first connection information generation unit is connected to the plurality of first antennas via the first connection switching unit,
• the second connection information generation unit is connected to the plurality of second antennas via the second connection switching unit,
• the first and second connection information generation units perform test communication processing of experimentally transmitting signals either from the plurality of first antennas or from the plurality of second antennas to the other plurality of antennas and receiving, through the plurality of antennas from which the signals have been transmitted, signals transmitted from two or more of the other plurality of antennas, and respectively generate the first connection information and the second connection information based on results of the test communication processing.