Wireless communication medium processing apparatus and wireless communication medium processing system

A wireless communication medium processing apparatus which carries out communication with a wireless communication medium, said apparatus comprising:

• a section that performs reading/writing processing as to information which is stored in the wireless communication medium, said section comprising:
• a plurality of antennas;
• a reception signal input selector, which is connected to the plurality of antennas and selects at least one antenna from the plurality of antennas, and
• a wave detector, which is installed between the at least one antenna and the reception signal input selector, and detects a wave detection signal from signals from the at least one antenna.

A wireless communication medium processing apparatus which carries out communication with a wireless communication medium, said apparatus comprising:

• a section that performs at least reading processing as to information which is stored in the wireless communication medium by generating induced voltage in the wireless communication medium, said section comprising:
• a plurality of antennas which respectively perform both transmission and reception;
• a transmission distributor, which is connected to the plurality of antennas;
• and
• a reception compositor, which is connected to the plurality of antennas, wherein:
• the transmission distributor distributes transmission signals to the plurality of antennas in parallel,
• said plurality of antennas, respectively, transmit the distributed transmission signals to space around said plurality of antennas where the wireless communication medium may be located,
• at least one of the plurality of antennas receives a reception signal from the wireless communication medium if the wireless communication medium is located around the plurality of antennas and outputs the reception signal to the reception compositor,
• at least two antennas of the plurality of antennas receive a reception signal from the wireless communication medium and output the reception signal to the reception compositor, and
• in a case that a first antenna and a second antenna of the plurality of antennas receive and output a first reception signal and a second reception signal, respectively, the reception compositor combines the first reception signal and the second reception signal and outputs a combined reception signal.

A wireless communication medium processing apparatus which carries out communication with a wireless communication medium, said apparatus comprising:

• a section that performs at least reading processing as to information which is stored in the wireless communication medium by generating induced voltage in the wireless communication medium, said section comprising:
• a plurality of antennas;
• a reception signal input selector, which is connected to the plurality of antennas and selects at least a first antenna of the plurality of antennas, and
• a plurality of wave detectors, which are connected to the reception signal input selector so that the wave detectors are respectively installed between the plurality of antennas and the reception signal input selector, wherein:
• the first antenna, which is selected by the reception signal input selector, receives a RF signal and outputs the RF signal to one of the plurality of wave detectors, and the one of the plurality of wave detectors detects a wave detection signal whose frequency is lower than the RF signal.

A wireless communication medium processing apparatus which carries out communication with a wireless communication medium, said apparatus comprising:

• a section that performs at least reading processing by generating induced voltage in the wireless communication medium, said section comprising:
• a plurality of antennas;
• a transmission distributor, which is connected to the plurality of antennas;
• and
• a reception compositor, which is connected to the plurality of antennas;
• wherein the transmission distributor distributes respective signals, that are based on an input signal, to the plurality of antennas;
• and
• the reception compositor combines signals from the plurality of antennas, and outputs a composite signal.

A wireless communication medium processing apparatus which carries out communication with a wireless communication medium, said apparatus comprising:

• a section that performs at least reading processing by generating induced voltage in the wireless communication medium, said section comprising:
• a plurality of antennas;
• a reception signal input selector, which is connected to the plurality of antennas and selects at least one antenna from the plurality of antennas, and
• a wave detector, which is installed between the at least one antenna and the reception signal input selector, and detects a wave detection signal from a signal from the at least one antenna.