ELECTRONIC APPARATUS, SIGNAL COMPENSATION DEVICE, AND SIGNAL COMPENSATION METHOD

• Main Authors: USUDA, HIROSHI, YAMACHIKA, SHINJI, MIYAZAKI, EIJI
• Format: Patent
• Language: English
• Published: 06.05.2005
• Edition: 7
• Subjects: ADVERTISING; ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICESUSING STATIC MEANS TO PRESENT VARIABLE INFORMATION; CALCULATING; COMPUTING; COUNTING; CRYPTOGRAPHY; DISPLAY; EDUCATION; ELECTRIC DIGITAL DATA PROCESSING; GYROSCOPIC INSTRUMENTS; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT; MEASURING; MEASURING DISTANCES, LEVELS OR BEARINGS; MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION,OR SHOCK; NAVIGATION; PHOTOGRAMMETRY OR VIDEOGRAMMETRY; PHYSICS; SEALS; SURVEYING; TESTING

An electronic apparatus that does not malfunction by temperature drift of an angular velocity sensor, and a signal compensation system and signal compensation method for compensating the temperature drift. The electronic apparatus has an angular velocity sensor for outputting a first signal in accordance with an angular velocity in a rotation direction, or, for example, voltage at a certain temperature in a graph alpha; means for memorizing in advance a graph beta that is data for a second signal to be primarily outputted by the angular velocity sensor in a stationary state; means for detecting a stationary state; means for extracting, when the stationary state is detected, a difference between the first signal and the second signal; means for compensating the first signal based on the difference; and a display section for displaying an image by scrolling it based on the compensated signal. This enables to prevent the angular velocity sensor from malfunctioning by temperature drift.