Invention Grant
- Patent Title: Dynamically controlling random access memory retention in a wireless device
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Application No.: US15472420Application Date: 2017-03-29
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Publication No.: US10896138B2Publication Date: 2021-01-19
- Inventor: Li Su , Longda Xing
- Applicant: Apple Inc.
- Applicant Address: US CA Cupertino
- Assignee: Apple Inc.
- Current Assignee: Apple Inc.
- Current Assignee Address: US CA Cupertino
- Agency: Kowert, Hood, Munyon, Rankin & Goetzel, P.C.
- Main IPC: G06F13/00
- IPC: G06F13/00 ; G06F1/3225 ; G06F1/3234 ; G11C11/4072

Abstract:
A wireless communication device (UE) may include random access memory and associated software configured to selectively place different memory banks into either an active power on mode, retention mode, or power off mode. The selective placement of memory banks into different modes may be performed based on a variety of factors including software module voting information, a current power mode of the memory banks, one or more software program(s) and/or data currently stored on the memory banks, and a counter that counts an amount of time during which a memory bank is not accessed. The placement of memory banks into different modes may be controlled by a memory controller coupled to the memory banks.
Public/Granted literature
- US20170344296A1 Dynamically Controlling Random Access Memory Retention in a Wireless Device Public/Granted day:2017-11-30
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