INFORMATION DISPLAY DEVICE, INFORMATION DISPLAY METHOD, AND STORAGE MEDIUM

摘要

While an information display device is initially placed at a standstill, a CPU stores acceleration responsive to gravitational force acquired by an acceleration sensor into a RAM. The CPU acquires acceleration in compliance with fixed timing acquired by the acceleration sensor and resulting from motion on the information display device. The CPU accumulates the acceleration acquired in compliance with the fixed timing within each prescribed period. Then, the CPU makes the accumulated acceleration agree with acceleration responsive to gravitational force stored in the RAM, thereby correcting a posture parameter. Based on the corrected posture parameter, the CPU determines whether a temporal image is to be displayed on a display unit.

主权项

1. An information display device, comprising: a display unit on which predetermined information is displayed;
a case including the display unit; an acceleration sensor to detect acceleration generated in a direction of each of three axes of the case orthogonal to each other; an angular velocity sensor to detect angular velocity determined relative to each of the orthogonal three axes; a first acquiring unit to acquire the acceleration detected by the acceleration sensor and the angular velocity detected by the angular velocity sensor; a first storage control unit to store a posture parameter into a memory while the case is at a standstill, the posture parameter being determined in this standstill condition and including acceleration responsive to gravitational force detected by the acceleration sensor; an updating unit to update the posture parameter stored in the memory each time the angular velocity is detected, the posture parameter being updated in response to a value of the acquired angular velocity; a calculating unit to calculate acceleration responsive to gravitational force from the detected acceleration based on the updated posture parameter; a first accumulating unit to accumulate the calculated acceleration; a first correcting unit to correct the posture parameter such that the accumulated acceleration accumulated by the first accumulating unit agrees with the acceleration responsive to gravitational force stored in the memory; and a display control unit to determine whether the certain information is to be displayed on the display unit based on the posture parameter corrected by the first correcting unit.