Noncontact communication device, magnetic tape drive, noncontact communication system, method for operating noncontact communication device, and program

A method for operating a noncontact communication device that applies a magnetic field to a noncontact storage medium to induce power in the noncontact storage medium and is coupled to the noncontact storage medium by electromagnetic induction to perform transmission and reception of information with the noncontact storage medium,

• the noncontact storage medium having a measurement circuit that measures the power, and transmitting power information regarding the power measured by the measurement circuit to the noncontact communication device,
• the method comprising:
• receiving the power information;
• and
• executing support processing of supporting the transmission and reception based on the received power information,
• wherein the power information is information indicating a tendency of fluctuation of the power within a predetermined period.

A non-transitory computer-readable storage medium storing a program executable by a computer, which is applied to a noncontact communication device that applies a magnetic field to a noncontact storage medium to induce power in the noncontact storage medium and is coupled to the noncontact storage medium by electromagnetic induction to perform transmission and reception of information with the noncontact storage medium, to perform specific processing,

• the noncontact storage medium having a measurement circuit that measures the power, and transmitting power information regarding the power measured by the measurement circuit to the noncontact communication device,
• the specific processing comprising:
• receiving the power information;
• and
• executing support processing of supporting the transmission and reception based on the received power informationm,
• wherein the power information is information indicating a tendency of fluctuation of the power within a predetermined period.

A noncontact communication device comprising:

• a processor;
• and
• a transmission and reception device that applies a magnetic field to a noncontact storage medium to induce power in the noncontact storage medium and is coupled to the noncontact storage medium by electromagnetic induction to perform transmission and reception of information with the noncontact storage medium,
• wherein the noncontact storage medium has a measurement circuit that measures the power, and transmits power information regarding the power measured by the measurement circuit to the noncontact communication device,
• the transmission and reception device receives the power information,
• the processor is configured to execute support processing of supporting the transmission and reception based on the power information received by the transmission and reception device, and
• the power information is information defined by dissimilarity from a relative value of the power or a reference value of the power.

A noncontact communication device comprising:

• a processor;
• and
• a transmission and reception device that applies a magnetic field to a noncontact storage medium to induce power in the noncontact storage medium and is coupled to the noncontact storage medium by electromagnetic induction to perform transmission and reception of information with the noncontact storage medium,
• wherein the noncontact storage medium has a measurement circuit that measures the power, and transmits power information regarding the power measured by the measurement circuit to the noncontact communication device,
• the transmission and reception device receives the power information,
• the processor is configured to execute support processing of supporting the transmission and reception based on the power information received by the transmission and reception device,
• the noncontact storage medium intermittently transmits the power information to the noncontact communication device, and
• the processor is configured to execute the support processing each time the power information is received by the transmission and reception device.