CN-121999815-A - Electronic equipment

Abstract

The electronic device (1) is provided with a storage device (25) having a nonvolatile memory built therein, and a controller (21) capable of setting a power supply mode of the electronic device (1) to a sleep mode in which power supply to the storage device (25) is maintained, and when the power supply mode is changed to the sleep mode, the controller (21) transmits a shutdown notification command to the storage device (25) to stop a confirmation operation of a data state in the storage device (25).

Inventors

• TOMOFUJI SHINJI

Assignees

• 京瓷办公信息系统株式会社

Dates

Publication Date

20260508

Application Date

20251103

Priority Date

20241107

Claims (8)

1. 1. An electronic device, characterized in that, The device is provided with: A storage device having a nonvolatile memory built therein, A controller capable of setting a power supply mode of the electronic apparatus to a sleep mode in which power supply to the storage device is maintained; And when the power supply mode is changed to the sleep mode, the controller sends a shutdown notification command to the storage device, and stops the confirmation action of the data state in the storage device.
2. 2. The electronic device of claim 1, wherein the electronic device comprises a memory device, The controller does not send the shutdown notification command to the storage device when the type of the storage device is a specific type when changing the power supply mode to the sleep mode, The specific type is a type of writing action to a specific storage area when the storage device receives the shutdown notification command.
3. 3. The electronic device of claim 2, wherein the electronic device comprises a memory device, The type of the storage device is a model of the storage device or a firmware version of the storage device.
4. 4. The electronic device of claim 1, wherein the electronic device comprises a memory device, When the power supply mode of the electronic apparatus is a sleep mode, the controller selects either one of a first sleep mode in which power supply to the storage device is cut off and a second sleep mode in which power supply to the storage device is maintained, For the sleep mode, either one of the first sleep mode and the second sleep mode can be selected by a user, When the access frequency to the storage device exceeds a predetermined threshold value while in the first sleep mode, the controller displays a message for prompting a change from the first sleep mode to the second sleep mode to the user.
5. 5. The electronic device of claim 1, wherein the electronic device comprises a memory device, When the power supply mode of the electronic apparatus is a sleep mode, the controller selects either one of a first sleep mode in which power supply to the storage device is cut off and a second sleep mode in which power supply to the storage device is maintained, For the sleep mode, either one of the first sleep mode and the second sleep mode can be selected by a user, When the access frequency to the storage device is less than a predetermined threshold value in the second sleep mode, the controller displays a message for prompting a change from the second sleep mode to the first sleep mode to the user.
6. 6. The electronic device of claim 1, wherein the electronic device comprises a memory device, When the power supply mode of the electronic apparatus is a sleep mode, the controller selects either one of a first sleep mode in which power supply to the storage device is cut off and a second sleep mode in which power supply to the storage device is maintained, When the access frequency to the storage device exceeds a predetermined threshold value while in the first sleep mode, the controller automatically changes the power supply mode of the electronic device from the first sleep mode to the second sleep mode.
7. 7. The electronic device of claim 1, wherein the electronic device comprises a memory device, When the power supply mode of the electronic apparatus is a sleep mode, the controller selects either one of a first sleep mode in which power supply to the storage device is cut off and a second sleep mode in which power supply to the storage device is maintained, When the access frequency to the storage device is smaller than a predetermined threshold value in the second sleep mode, the controller automatically changes the power supply mode of the electronic device from the second sleep mode to the first sleep mode.
8. 8. The electronic device of any one of claim 1 to 7, wherein, The non-volatile memory is a NAND type flash memory, The shutdown notification command is a Standby Immediate command.

Description

Electronic equipment Technical Field The present invention relates to electronic devices. Background In an information apparatus, when a main body of the apparatus shifts to a power saving mode, the number of shifts to the power saving mode is counted, and when the number of shifts is smaller than a prescribed number, a storage device (hard disk drive) is not shifted to the power saving mode, and when the number of shifts reaches the prescribed number, the storage device (hard disk drive) is shifted to the power saving mode. In recent years, storage devices using rewritable nonvolatile memories such as SSDs (Solid STATE DRIVE) and the like are sometimes used in electronic devices. In such a memory device, when the memory device is in a state where no access from the outside is provided, the internal controller performs an operation of confirming the data state of the nonvolatile memory. However, when the nonvolatile memory is frequently accessed for confirmation of such a data state, a bad phenomenon such as Read Disturb (Read Disturb) may occur. Therefore, if power supply to the storage device is maintained in the sleep mode (power saving mode), such a problem may occur in the sleep mode since the state in which the storage device is not externally accessed is continued. Disclosure of Invention The present invention has been made in view of the above-described problems, and an object of the present invention is to provide an electronic device that suppresses occurrence of a defective phenomenon of a nonvolatile memory in a sleep mode in which power supply to a storage device is maintained. (Solution to problem) The electronic device includes a storage device having a nonvolatile memory incorporated therein, and a controller capable of setting a power supply mode of the electronic device to a sleep mode in which power supply to the storage device is maintained. When the power supply mode is changed to the sleep mode, the controller transmits a shutdown notification command to the storage device, and stops the operation of confirming the data state in the storage device. (Effects of the invention) According to the present invention, it is possible to obtain an electronic apparatus that suppresses occurrence of a defective phenomenon of a nonvolatile memory in a sleep mode in which power supply to a storage device is maintained. The above and other objects, features and advantages of the present invention will become more apparent in light of the following detailed description when taken in conjunction with the accompanying drawings. Drawings Fig. 1 is a block diagram showing an example of an electronic device according to an embodiment of the present invention. Fig. 2 is a flowchart illustrating the operation of the electronic apparatus 1 shown in fig. 1. Detailed Description Hereinafter, embodiments of the present invention will be described with reference to the drawings. Fig. 1 is a block diagram showing an example of an electronic device according to an embodiment of the present invention. The electronic apparatus 1 shown in fig. 1 is an image forming apparatus such as a printer or a multifunctional integrated machine. As shown in fig. 1, the electronic apparatus 1 includes a controller 21, an internal device 22 such as a printing device, an operation panel 23, a communication device 24, a storage device 25, and a power supply device 26. The controller 21 includes a computer, an ASIC (Application SPECIFIC INTEGRATED Circuit), and the like, and implements various processing units by software and/or hardware, controls the internal device 22, the operation panel 23, and the like, performs various data processing, and reads and writes (READ WRITE) data necessary for the data processing, user data, and the like to the storage device 25. The controller 21 switches the power supply mode of the electronic apparatus 1 between a normal mode and a sleep mode (power saving mode) in which power consumption is lower than that in the normal mode. The operation panel 23 includes an input device 31 such as a touch panel or a hard key for detecting a user operation, and a display device 32 such as a liquid crystal display for displaying an operation screen to the user. The communication device 24 is a wired or wireless network interface or the like, and performs data communication with the host device 3 or the like via the network 2. The storage device 25 includes a nonvolatile memory and a controller (internal controller) for the nonvolatile memory, and the internal controller communicates with the controller 21 and reads and writes data from and to the nonvolatile memory (READ WRITE). In the present embodiment, the storage device 25 is an SSD, and the nonvolatile memory is a NAND flash memory. The power supply device 26 supplies commercial power to each section, and individually turns on/off power supply to the storage device 25 according to a power supply mode. The controller 21 can set the power supply mode of the ele