Invention Publication
- Patent Title: APPARATUS AND METHODS FOR UNIVERSAL SERIAL BUS 4 (USB4) DATA BANDWIDTH SCALING
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Application No.: US18194262Application Date: 2023-03-31
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Publication No.: US20240330230A1Publication Date: 2024-10-03
- Inventor: Rajaram Regupathy , Reuven Rozic , Dmitriy Berchanskiy , Nirmala Bailur , Vrukesh V. Panse , Saranya Gopal
- Applicant: Intel Corporation
- Applicant Address: US CA Santa Clara
- Assignee: Intel Corporation
- Current Assignee: Intel Corporation
- Current Assignee Address: US CA Santa Clara
- Main IPC: G06F13/42
- IPC: G06F13/42 ; G06F13/38

Abstract:
A data scaling module for USB4 that embodies display driver (DD) and connection manager (CM) operations. Periodic and aperiodic transfer requests are monitored. The periodic BW activity on periodic peripherals, such as display panels (DPs) is monitored, and determinations as to reduced periodic activity on a DP are made. Responsive to receiving a high aperiodic bandwidth request, the original refresh rate for the DP is reduced. The newly freed USB4 BW is provided for the aperiodic task. At completion of the aperiodic task, the DD increases the refresh rate to its original value.
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