Invention Grant
- Patent Title: System for modifying data rates used by audio devices
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Application No.: US15403036Application Date: 2017-01-10
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Publication No.: US10243864B1Publication Date: 2019-03-26
- Inventor: Milos Jorgovanovic , Jin Guo , Morris Yuanhsiang Hsu
- Applicant: AMAZON TECHNOLOGIES, INC.
- Applicant Address: US WA Seattle
- Assignee: AMAZON TECHNOLOGIES, INC.
- Current Assignee: AMAZON TECHNOLOGIES, INC.
- Current Assignee Address: US WA Seattle
- Agency: Lindauer Law, PLLC
- Main IPC: H04W4/06
- IPC: H04W4/06 ; H04L12/825 ; H04L29/06 ; H04L12/26

Abstract:
Described are techniques for modifying the data rate used to transmit audio data from a master device to slave devices. After receiving a signal, each slave device requests transmission of one or more packets and reports an individual error rate. A cumulative error rate may also be determined based on the individual error rates and the retransmission requests. If any individual error rate or the cumulative error rate exceeds a maximum threshold, the data rate used to transmit the audio data is decreased. If an individual error rate is less than a minimum threshold, the data rate may be increased. If an error rate exceeds a critical threshold, the data rate may be reduced to a minimum value supported by the devices.
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