DRIVING DEVICE, TACTILE SENSE PRESENTING DEVICE, AND METHOD FOR DRIVING

• Main Authors: SHIMIZU HIROYUKI, ISHII SHIGEO, NAMIKAWA YUICHI, KISHIMOTO SUMIAKI, GOTO TAKAYUKI
• Format: Patent
• Language: English; Japanese
• Published: 13.12.2021
• Subjects: ALARM SYSTEMS; CALCULATING; COMPUTING; COUNTING; ELECTRIC DIGITAL DATA PROCESSING; FOR PERFORMING MECHANICAL WORK IN GENERAL; GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL; METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICALVIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY; ORDER TELEGRAPHS; PERFORMING OPERATIONS; PHYSICS; SIGNALLING; SIGNALLING OR CALLING SYSTEMS; TRANSPORTING

To provide a driving device of a space vibration generator that can present a real sense of feeling, a tactile sense presenting device, and a method for driving.SOLUTION: The driving device according to the present technique generates a driving signal which has a first low frequency, which is at least 1 Hz and lower than 100 Hz, as a first modulation wave, has a wave obtained by amplitude-modulating a second low frequency, which is at least 100 Hz and 300 Hz at a maximum, by the first modulation wave as a second modulation wave, and has a wave obtained by modulating a high frequency, which is at least 20 kHz and 100 kHz at a maximum, by the second modulation wave. After that, the driving device outputs the driving signal to a piezoelectric element.SELECTED DRAWING: Figure 1 【課題】リアルな触感の提示が可能な空間振動発生装置の駆動装置、触覚提示装置及び駆動方法を提供すること。【解決手段】本技術に係る駆動装置は、周波数が１Ｈｚ以上１００Ｈｚ未満である第１低周波を第１変調波とし、周波数が１００Ｈｚ以上３００Ｈｚ以下である第２低周波を上記第１変調波によって振幅変調してなる波形を第２変調波とし、周波数が２０ｋＨｚ以上１００ｋＨｚ以下である高周波を上記第２変調波によって変調してなる波形を有する駆動信号を生成し、上記駆動信号を圧電素子に出力する。【選択図】図１