Patent ID: 9740642
Date: 2017-08-22
CPC Classifications: G06F

Claim:
1. A method for adjusting an operating frequency of a memory, wherein the method is applied to an electronic device comprising a central processor having a third frequency, a memory controller having a first frequency, and a memory connected with the memory controller, and the memory operates at the first frequency of the memory controller when the electronic device is in an operating mode and exchanges data information with the central processor according to the first frequency of the memory controller, said method comprises: monitoring a usage of a system resource; adjusting an operating frequency of the memory controller according to the usage of the system resource such that the operating frequency of the memory controller is adjusted from the first frequency to a second frequency; wherein the adjusting the operating frequency of the memory controller comprises: transmitting to the memory a first command that instructs the memory to hold the data information in the memory; transmitting to the memory controller a second command that adjusts the first frequency of the memory controller to the second frequency; and transmitting to the memory a third command that instructs the memory to exchange the data information with the central processor according to the second frequency of the memory controller, wherein the usage of the system resource includes at least one of a usage of the central processor, a usage of the memory and a usage of network bandwidth, and wherein a repetitive scanning and displaying of static display data is supported while holding the data information in the memory, so as to notify a user that the operating frequency of the memory is being adjusted, and the method further comprises, before transmitting the first command to the memory; receiving an instruction for adjusting the operating frequency of the memory, wherein the instruction for adjusting the operating frequency of the memory is generated when the operating frequency of the central processor is adjusted form the third frequency to the fourth frequency, or generated according to the usage of the system resource.