Company Filing History:
Years Active: 2021-2025
Title: Innovator Spotlight: Liang Chai
Introduction
Liang Chai is an accomplished inventor located in Acton, MA, with a total of six patents to his name. His innovations primarily focus on enhancing the functionality and efficiency of portable playback devices through advanced power management techniques.
Latest Patents
One of Liang Chai's notable patents involves innovative methods related to portable playback device power management. This patent includes an example implementation featuring a main System on Chip (SoC) composed of main processors, an auxiliary processor, and a kernel that operates on the processor cores. When the kernel enters a suspended state, a power management microcontroller ensures monitoring of battery conditions for specific wake-on-battery triggers. Upon identifying a trigger, the microcontroller sends an interrupt to the auxiliary processor, thereby enabling the main processors and resuming the kernel.
Another significant aspect of his latest patents is the establishment of a power coordinator background process that supports multiple client programs. This process utilizes inter-process communication (IPC) mechanisms to coordinate power management between programs effectively. By monitoring readiness for suspension from each client program, the system can communicate with the operating system to enter a kernel suspend state, ensuring efficient power usage in playback devices.
Career Highlights
Liang Chai currently works at Sonos, Inc., a leader in audio technology that focuses on creating innovative sound solutions. His career at Sonos showcases his dedication to improving user experiences through cutting-edge technology, particularly in the realm of portable devices.
Collaborations
In his role at Sonos, Liang has collaborated with talented coworkers such as Xiang Wang and Brenda Stefani. Together, they contribute to advancing product features and overall performance, showcasing the importance of teamwork in the innovation process.
Conclusion
Liang Chai exemplifies the spirit of innovation in audio technology, with a strong focus on power management for portable playback devices. His contributions are not just limited to patents but extend to collaborative efforts at Sonos, Inc. As the tech landscape continues to evolve, inventors like Liang Chai remain at the forefront, driving advancements that enhance everyday technology.