Patent ID: 8878776

Claim:
An information processing system, comprising: a communication device operating to permit a user to provide inputs; and an information processing device that is communicatively connectable to the communication device in order to receive the inputs from the communication device, where the information processing device and communication device operate in: (i) a calibration mode in which a calibration routine is executed, and (ii) an application processing mode in which one or more application programs are executed after the calibration routine is completed, wherein: the communication device comprises a sensor that measures information regarding a posture thereof; the information processing device comprises: an acquisition section for acquiring a measurement result of the sensor from the communication device; a section for displaying on a display device, when in the calibration mode, a guide image for guiding the user in performing a rotational operation for rotating the communication device; and a calibration section for executing calibration of the sensor, when in the calibration mode, by using the measurement result acquired by the acquisition section while the guide image is displayed; wherein: the guide image comprises an image representing a reference axis to visually guide the user as to a desired rotation center for the rotational operation and an image representing the communication device, where the image representing the communication device has an appearance substantially matching an appearance of the communication device; and the image representing the communication device is located within the guide image so that the user is guided to place a portion of the communication device corresponding to a position of the sensor in overlapping orientation with the reference axis, and so that the guide image visually represents that the image representing the communication device rotates about the reference axis as the rotation center as the user is guided in rotating the communication device during the rotation operation.