ELECTRONIC DEVICE HAVING A TUNED RESONANCE HAPTIC ACTUATION SYSTEM

• Main Authors: Au, Chung Yin, Zhao, Qingguo, Chen, Yu, Wang, Hong Feng, Fu, Weiqiang, Tsang, Lok Pui Calvin
• Format: Patent
• Language: English
• Published: 21.03.2019
• Subjects: CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; FOR PERFORMING MECHANICAL WORK IN GENERAL; GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS; METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICALVIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY; PERFORMING OPERATIONS; PRINTED CIRCUITS; TRANSPORTING

An electronic device includes an enclosure, a display positioned with the enclosure and defining a front face of the electronic device, and a haptic actuator positioned within the enclosure. The haptic actuator includes a housing comprising a wall and a movable mass positioned within the housing and configured to move within the housing to cause the haptic actuator to produce a vibrational response. The vibrational response includes a first component within a frequency range and a second component outside of the frequency range and providing a haptic output portion of the vibrational response. The haptic actuator also includes a tuning feature incorporated with the wall and configured to reduce the first component of the vibrational response while substantially maintaining the haptic output portion of the vibrational response.