TWS Earbud Scanning Duty Cycle Optimization
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Solution Overview
Problem
Existing TWS headset connection methods are inefficient in establishing Bluetooth connections between earbuds and electronic devices, leading to prolonged connection times and increased power consumption.
Innovation Solution
A method that involves the first earbud scanning at a 100% duty cycle, advertising by the second earbud, and establishing a connection to a previously paired electronic device if the scanning duration exceeds the advertising period, with subsequent paging and scanning strategies to maintain and re-establish connections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the first earbud performs scanning at a 100% duty cycle to ensure reliable detection of the second earbud's advertising, then the connection reliability is improved, but the power consumption increases
Solution Approach 1:
The patent applies dynamics by making the scanning duty cycle adjustable rather than fixed. The first earbud dynamically changes its scanning duty cycle based on connection scenarios: using 100% duty cycle when connection reliability is prioritized, and reducing to 50% or lower duty cycle when power consumption needs to be reduced. This dynamic adjustment resolves the contradiction between reliability and energy consumption.
Solution Approach 2:
The patent changes the scanning duty cycle parameter from a fixed 100% to variable values (100%, 50%, or lower) depending on the connection scenario. This parameter change allows the system to optimize between reliability and power consumption by selecting appropriate duty cycle values for different situations, directly resolving the technical contradiction.
2Reliability
If the first earbud continues scanning at high duty cycle until the advertising period is exceeded, then the connection establishment reliability is improved, but the connection time increases
Solution Approach 1:
The patent applies dynamics by implementing multiple scanning strategies (first, second, and third strategies) that dynamically select different scanning duty cycles based on whether the advertising period is exceeded. This dynamic selection of scanning strategies resolves the contradiction between connection reliability and connection time.
Solution Approach 2:
The patent changes the scanning duty cycle parameter based on the advertising period comparison result. When the advertising period is not exceeded, it uses higher duty cycles (100% or 50%) for reliable detection. When the advertising period is exceeded, it switches to lower duty cycles to reduce connection time while maintaining adequate reliability.
3Use of energy by moving object
If the first earbud uses a scanning duty cycle lower than 100% to reduce power consumption, then the energy efficiency is improved, but the scanning coverage and detection capability deteriorate
Solution Approach 1:
The patent applies dynamics by making the scanning duty cycle adaptive rather than static. The first earbud dynamically adjusts its scanning duty cycle based on the connection scenario and advertising period detection results. This dynamic adjustment ensures that when lower duty cycles are used for energy efficiency, the system compensates through intelligent strategy selection, thereby maintaining adequate detection capability.
Solution Approach 2:
The patent changes the scanning duty cycle parameter from a fixed high value to variable values (100%, 50%, or lower) based on energy efficiency requirements. By combining this parameter change with multiple scanning strategies, the system achieves energy efficiency while maintaining sufficient scanning detection capability through intelligent parameter selection.
Data Source
AI summary
This application discloses a TWS headset connection method, including: A TWS headset includes a first earbud and a second earbud; the first earbud performs scanning at a first scanning duty cycle, where the first scanning duty cycle is 100%; the second earbud performs advertising; if the first earbud does not find the advertising through scanning, the first earbud determines or judges whether scanning duration of the first earbud exceeds an advertising period of the second earbud; and if the scanning duration of the first earbud exceeds the advertising period of the second earbud, the first earbud is connected to an electronic device that has performed a Bluetooth pairing with the first earbud last time; or if the scanning duration of the first earbud does not exceed the advertising period of the second earbud, the first earbud continues scanning.