AAC Technologies has been granted a patent for a method to compensate a motor signal by adjusting for nonlinearity using acquired parameters. This innovation aims to enhance vibration effects in electronic devices, providing a more precise tactile experience. GlobalData’s report on AAC Technologies gives a 360-degree view of the company including its patenting strategy. Buy the report here.
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According to GlobalData’s company profile on AAC Technologies, V2V communication antennas was a key innovation area identified from patents. AAC Technologies's grant share as of February 2024 was 56%. Grant share is based on the ratio of number of grants to total number of patents.
Method for compensating motor signal nonlinearity using acquired parameters
A recently granted patent (Publication Number: US11914340B2) discloses a method for compensating a signal of a motor. The method involves acquiring an original signal and nonlinear parameters of the motor, calculating a compensation signal based on these parameters, and loading the calculated signal into the motor to induce vibrations. The nonlinear parameters include electromagnetic force coefficient, spring stiffness coefficient, and damping, with functions expressed in terms of vibrator displacement. The compensation signal is determined through a compensation equation involving first and second compensation coefficients, calculated based on the acquired nonlinear parameters.
Furthermore, the patent describes an electronic apparatus comprising at least one processor and memory storing a motor signal compensation program. This program executes the method for compensating a motor signal by acquiring the original signal and nonlinear parameters, calculating a compensation signal, and loading it into the motor to induce vibrations. The nonlinear parameters are determined through a least mean square algorithm based on voltage and current values of the motor. The apparatus also includes steps for acquiring vibration data, comparing it with expected data, and obtaining an effect detection result post-loading of the compensation signal into the motor. The method ensures precise compensation of motor signals for optimal performance.
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GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.
