STMicroelectronics has been granted a patent for a microelectromechanical gyroscope with a unique gain control stage. The gyroscope includes a driving mass, sensing interface, and gain control stage to maintain loop gain at a unitary value. The design features a sampler and transconductance operational amplifier in an open-loop configuration. GlobalData’s report on STMicroelectronics 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 STMicroelectronics, Quantum dot devices was a key innovation area identified from patents. STMicroelectronics's grant share as of January 2024 was 67%. Grant share is based on the ratio of number of grants to total number of patents.
Microelectromechanical gyroscope with gain control for loop signal
A recently granted patent (Publication Number: US11885619B2) discloses a microelectromechanical gyroscope featuring a support structure, a driving mass, and an oscillating microelectromechanical loop. The gyroscope includes a gain control stage with a sampler and a transconductance operational amplifier in an open-loop configuration. The sampler acquires samples of a loop signal from a sensing interface and transfers them to the amplifier in separate operative conditions, ensuring decoupling between the two components. The acquisition stage of the sampler includes an acquisition storage component and an acquisition connection circuit with different connection states, while the output stage includes an output storage component and an output connection circuit with distinct transfer states.
Moreover, the patent also covers an electronic system incorporating the microelectromechanical gyroscope and processing circuitry. The system maintains the modulus of the loop gain at a unitary value by utilizing the gain control stage with the sampler and transconductance operational amplifier. The acquisition and amplification processes are temporally separate and not overlapped, ensuring efficient control of the gyroscope's oscillations. Additionally, the method of controlling the gyroscope involves setting the device in oscillation, sensing the driving mass's position, and maintaining the loop gain's modulus at a unitary value. The method includes rectifying loop signals through an acquisition connection circuit, further enhancing the gyroscope's functionality.
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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.
