Abstract: A control unit activates a touch sensor according to a predetermined state, for example, an open or closed state of a casing or a side key depressed state and changes, after the elapse of time for performing calibration (about 500 ms), the touch sensor to a state in which contact operation by the touch sensor can be performed. On the other hand, the control unit causes a sub-display unit to display a predetermined rendered image, for example, a character string “touch sensor is operable.” after the elapse of the time for performing calibration.

Abstract: A communication apparatus includes: a communication unit COM that performs operation control of a function involving transmission or reception of an electromagnetic wave by an antenna; a touch sensor module TSM having an oscillation circuit and an electrode connected to the oscillation circuit; a power supply PS that supplies power to the oscillation circuit; and a power supply controller PSCON that controls supply of power by the power supply PS. The touch sensor module TSM detects a contact operation based on an oscillation state of the oscillation circuit which varies in accordance with a contact operation. As a result, a state where the power supply PS is supplying power to the oscillation circuit under the control of the power supply controller PSCON and a state where the communication unit COM is performing operation control of the function involving transmission or reception of an electromagnetic wave do not exist concurrently.

Abstract: Portable electronic apparatus includes a display unit (ELD); a first sensor element group (G1) having a plurality of sensor elements (L1-L4) for detecting a contact and arranged continuously around the display unit side by side; a switch element formed where the first sensor element group is arranged; and a control unit for controlling the portable electronic apparatus to display a plurality of selection candidate items which can be displayed as an operation target region on the display unit, to monitor a change in a detection state of the first sensor element group and a state of the switch element, to change a selection state of a selection candidate item by changing the selection candidate items and/or the operation target region based on the change in the detection state of the first sensor element group, and to execute a selection candidate item in the selection state when the switch element is pressed.

Abstract: A touch sensor becomes an operation enable state in which an operation state can be detected, when predetermined voltage is applied. A touch sensor control unit switches the touch sensor to an operation detection enable state by raising the voltage to a predetermined voltage level gradually and performing predetermined calibration when detecting an activation permission request of the touch sensor in a no-voltage applied state of the touch sensor, and switches the touch sensor to an operation detection disable state in which an operation state of the touch sensor cannot be detected by lowering voltage gradually to the no-voltage applied state. And, when detecting the activation permission request of the touch sensor during switching to the operation detection disable state, the touch sensor control unit switches the touch sensor to the operation detection enable state, after the switching operation to the operation detection disable state is completed.

Abstract: A portable electronic apparatus 100 includes a plurality of sensor elements continuously and adjacently arranged, and a control unit 110 monitoring an operation state of a plurality of sensors. The control unit 110 is capable of detecting a single element detection state detecting an operation state in one sensor element out of a plurality of sensor elements, and an adjacent elements detection state detecting an operation state of two adjacent sensor elements out of the plurality of sensor elements, and determines an operation state by combination of the single element detection state and the adjacent elements detection state.

Abstract: Suitable processing is performed considering a case where a confirmation notification of participation in group communication or other data communication was sent, but the notification is delayed and data communication has already ended when the notification arrives at the other party.