Abstract: There is provided a radio apparatus including: a radio transceiver configured to transmit and receive a signal via a plurality of antennas; and a processor configured to control the radio transceiver so that a signal transmitted by a first antenna among the plurality of antennas is received by second and third antennas neighboring the first antenna and detect at least difference between amplitudes of the signals received by the respective second and third antennas or difference between phases of the signals received by the respective second and third antennas.

Abstract: A communications apparatus includes a first computing circuit and a second computing circuit communicable with the first computing circuit and performing control of wireless communication with a second communications apparatus. The communications apparatus further includes a first storage device that can be written to by the first computing circuit and to which an operation log of the second computing circuit and generated by the second computing circuit is writable via the first computing circuit; a detecting circuit configured to detect a failure in communication between the first computing circuit and the second computing circuit; and a control circuit configured to change a writing destination of the operation log to a second storage device that can be written to by the first computing circuit, when the failure is detected by the detecting circuit.

Abstract: A suspend control apparatus, disposed in an electronic device having a SIM card, includes a control unit that switches the state of the SIM card between a suspended state and a resumed state. The control unit determines, based on the state of SIM card access for data communication and the state of the SIM card when the data communication occurs, whether to give priority to SIM card access or switching to the suspended state, and sets the state of the SIM card accordingly.

Abstract: A suspend control apparatus, disposed in an electronic device having a SIM card, includes a control unit that switches the state of the SIM card between a suspended state and a resumed state. The control unit determines, based on the state of SIM card access for data communication and the state of the SIM card when the data communication occurs, whether to give priority to SIM card access or switching to the suspended state, and sets the state of the SIM card accordingly.