Electronic apparatus, signal compensation device, and signal compensation method

• Main Authors: YAMACHIKA SHINJI, USUDA HIROSHI, MIYAZAKI EIJI
• Format: Patent
• Language: English
• Published: 31.03.2005
• 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 device that prevents a failure caused by a temperature drift of an angular velocity sensor, and a signal compensation system and a signal compensation method for compensating for the temperature drift are provided. The present invention provides a mechanism including an angular velocity sensor that outputs a first signal in accordance with a rotational angular velocity, for example, a voltage in a graph alpha at a given temperature; means for storing in advance a graph beta, which is data of a second signal normally output by the angular velocity sensor that is in a stationary state; means for detecting a stationary state; means for extracting the difference between the first signal and the second signal when the stationary state is detected; means for compensating for the first signal based on the extracted difference signal; and a display unit that scrolls and displays an image based on the compensated signal. This prevents a failure caused by the temperature drift of the angular velocity sensor.