US Patent Application 18305474. STORAGE DEVICE PREVENTING LOSS OF DATA IN SITUATION OF LACKING POWER AND OPERATING METHOD THEREOF simplified abstract

STORAGE DEVICE PREVENTING LOSS OF DATA IN SITUATION OF LACKING POWER AND OPERATING METHOD THEREOF

Organization Name

SAMSUNG ELECTRONICS CO., LTD.==Inventor(s)==

[[Category:Soo-Young Ji of Suwon-si (KR)]]

[[Category:Younggeon Yoo of Suwon-si (KR)]]

[[Category:Brianmyungjune Jung of Suwon-si (KR)]]

[[Category:Sung Chul Hur of Suwon-si (KR)]]

STORAGE DEVICE PREVENTING LOSS OF DATA IN SITUATION OF LACKING POWER AND OPERATING METHOD THEREOF - A simplified explanation of the abstract

This abstract first appeared for US patent application 18305474 titled 'STORAGE DEVICE PREVENTING LOSS OF DATA IN SITUATION OF LACKING POWER AND OPERATING METHOD THEREOF

Simplified Explanation

The patent application describes a storage device that includes a non-volatile memory, a volatile memory, an internal spare power source, and a storage controller.

• The non-volatile memory is responsible for inputting and outputting data at the request of a host system.
• The volatile memory temporarily stores data that is input to or output from the non-volatile memory.
• The internal spare power source supplies power to a part of the volatile memory when the main power supplied from the host system drops to a certain level.
• The storage controller controls both the non-volatile memory and the volatile memory.
• When the main power drops to a certain level, the storage controller divides the volatile memory into two areas: area-received-duplication-power and at least one area-received-spare-power.
• The storage controller redundantly supplies spare power to the area-received-duplication-power from an external spare power source and the internal spare power source.
• The spare power is also supplied to the at least one area-received-spare-power from the external spare power source.

Original Abstract Submitted

Disclosed is a storage device including a non-volatile memory that inputs or outputs data at a request of a host system, a volatile memory that temporarily stores data input to or output from the non-volatile memory, an internal spare power source that supplies power to a part of the volatile memory in response to main power supplied from the host system dropping to a first amount or less, and a storage controller that controls the non-volatile memory and the volatile memory. The storage controller is configured to divide the volatile memory into area-received-duplication-power, and at least one area-received-spare-power, in response to the main power dropping to the first amount or less, to redundantly supply spare power to the area-received-duplication-power from an external spare power source and the internal spare power source, and to supply the spare power to the at least one area-received-spare-power from the external spare power source.