Nippon Telegraph and Telephone has been granted a patent for a moving image control apparatus that optimizes bitrate control in streaming services. The device employs Bayesian optimization to calculate a quality target value, enhancing user engagement by maximizing a utility function based on viewership metrics. GlobalData’s report on Nippon Telegraph and Telephone 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 Nippon Telegraph and Telephone, Cloud gaming was a key innovation area identified from patents. Nippon Telegraph and Telephone's grant share as of June 2024 was 42%. Grant share is based on the ratio of number of grants to total number of patents.
Bitrate control for moving image streaming using bayesian optimization
The granted patent US12047658B2 introduces a control apparatus and method designed for bitrate control in moving image streaming services. Central to this innovation is the use of processing circuitry that calculates a quality target value aimed at optimizing a utility function through Bayesian optimization. This utility function incorporates a predetermined engagement index value, allowing the system to estimate and update distribution values in response to the quality target received. The output is an optimized quality target value that seeks to maximize the total sum of the average value of the utility function and a calculated value derived from the number of views of the moving image, adjusted by the standard deviation of the updated distribution values.
Additionally, the patent outlines that the utility function may include parameters related to predetermined costs, enhancing its applicability in various streaming scenarios. The control method, executable by a computer, mirrors the apparatus's functionality, emphasizing the calculation and optimization processes involved in bitrate control. Furthermore, the patent includes provisions for a non-transitory computer-readable medium that stores a program enabling the execution of the described method. This comprehensive approach aims to improve the efficiency and quality of moving image streaming services by dynamically adjusting bitrate based on user engagement and viewership metrics.
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