JP6456795B2 - Electronics - Google Patents

Description

  The present disclosure relates to an electronic device.

  In recent years, the processing capability of electronic devices has improved. As the main factor, for example, the speed of a CPU (Central Processing Unit) built in the electronic device or the speed of communication of the electronic device can be increased. In order to sufficiently reflect such high speed in the operation of the electronic device by the user, it is desired to increase the speed of data writing to the storage unit of the electronic device.

  A NAND flash memory is known as a memory having a high data writing speed. Japanese Patent Laying-Open No. 2015-141623 (Patent Document 1) discloses a portable terminal having a memory device as an eMMC (embedded Multi Media Card) (registered trademark) in which a memory controller and a NAND flash memory are packaged together. Is disclosed.

JP, 2015-141623, A

  As the writing speed increases, the cost of the memory generally increases. In order to speed up the writing of data to the storage unit, the storage unit of the electronic device should be configured with a memory having the highest possible writing speed. However, it is limited due to the demand for cost reduction.

  By configuring the storage unit from the first memory having a low cost and the second memory having a high writing speed, it is possible to harmonize the cost reduction and the writing speed. Data is constantly stored in the first memory. When there is a write request to the first memory, data is constantly or temporarily written in the second memory.

  When a data write request to the first memory is generated, the data write can surely be accelerated by writing the data to the second memory. However, the effect of speeding up such writing may not be realized by the user depending on the usage status of the electronic device. If data is always written to the second memory when a request to write data to the first memory is generated, the life of the second memory may be unnecessarily shortened.

  An object of the present disclosure is to provide an electronic device capable of suppressing the shortening of the life of a memory in which data is written in order to increase the data writing speed while reflecting an increase in the data writing speed in a user operation. It is to be.

  An electronic device according to one embodiment of the present disclosure includes a nonvolatile first memory, a nonvolatile second memory, and a control unit. The second memory has a higher writing speed than the first memory. The control unit is configured to receive a data write request to the first memory. When receiving a write request, the control unit writes the data to the first memory when a predetermined condition that means that the electronic device is in an operating state that does not require speeding up of the data writing is satisfied. The control unit is configured to write data to the second memory when a predetermined condition is not satisfied.

  According to the present disclosure, when it is not necessary to speed up the data writing, the data is not written into the second memory, so that the speed of the data writing is reflected in the user operation, and the lifetime of the second memory is increased. Can be suppressed.

It is the front view (a) and side view (b) of the smart phone which are the electronic devices by 1st Embodiment. It is a functional block diagram for demonstrating the function of the smart phone of FIG. 3 is a flowchart for explaining a flow of processing performed by a control unit in FIG. 2 when a write request to the first memory is generated. FIG. 4 is a diagram illustrating an example of a configuration of “predetermined conditions” in FIG. 3. It is a figure which shows the other example of "predetermined conditions." It is a flowchart for demonstrating the flow of the process performed when the control part of the smart phone by 2nd Embodiment receives the write-in request of data. It is a figure which shows the image of the writing speed currently recorded on the 1st memory. It is a flowchart for demonstrating the flow of the process performed when the control part of the smart phone by the modification of 2nd Embodiment receives the write-in request | requirement of data. It is a flowchart for demonstrating the flow of the process performed when the control part of the smart phone by the other modification of 2nd Embodiment receives the write-in request | requirement of data.

  Hereinafter, embodiments of the present disclosure will be described in detail with reference to the drawings. In the drawings, the same or corresponding parts are denoted by the same reference numerals and description thereof will not be repeated.

  In the following embodiments, a smartphone will be described as an example of the electronic device according to the embodiments. The electronic device according to the embodiment is not limited to a smartphone, and any electronic device may be used as long as it is desired to reflect the increased processing speed to the user operation. The electronic device according to the embodiment may be a tablet PC, a notebook PC, or a smart watch, for example. Further, the electronic device according to the embodiment is not limited to a portable electronic device, and may be, for example, a desktop PC or a workstation.

[First embodiment]
FIG. 1 is a front view (a) and a side view (b) of a smartphone 1 that is an electronic apparatus according to the first embodiment. As shown in FIG. 1A, the smartphone 1 has a speaker 70 at the upper part in the longitudinal direction of the main body part, a microphone 60 at the lower part in the longitudinal direction of the main body part, and a display part 20 and an input part 50 at the central part. Prepare. As shown in FIG. 1B, the smartphone 1 includes a mounting unit 80 that can mount the removable memory 100 on the side surface.

  FIG. 2 is a functional block diagram for explaining functions of the smartphone 1 of FIG. As shown in FIG. 2, the smartphone 1 includes a control unit 10, a display unit 20, a storage unit 30, a communication unit 40, an input unit 50, a microphone 60, a speaker 70, and a mounting unit 80. Prepare.

  The control unit 10 can control the smartphone 1 in an integrated manner. The control unit 10 can control each component of the display unit 20, the storage unit 30, the communication unit 40, the input unit 50, the microphone 60, the speaker 70, and the mounting unit 80 of the smartphone 1. The control unit 10 includes a CPU (Central Processing Unit) and a volatile storage element (not shown). The storage element is, for example, an SRAM (Static Random Access Memory) or a DRAM (Dynamic Random Access Memory).

  The display unit 20 can perform display based on the signal received from the control unit 10. The display unit 20 may be configured from, for example, a liquid crystal display, a plasma display, or an organic EL display. The display unit 20 can display one or a plurality of GUIs for operating the smartphone 1.

  The storage unit 30 can store, for example, an OS (Operating System) read out and executed by the control unit 10, programs of various applications, and various data used by the programs. A specific configuration of the storage unit 30 will be described later.

  The communication unit 40 includes an antenna switch, a duplexer, a power amplifier, a low noise amplifier, and a band-pass filter, although not shown. The communication unit 40 can perform wide area wireless communication in a communication network of a communication carrier in accordance with LTE (Long Term Evolution) or CDMA (Code Division Multiple Access). The communication unit 40 can process a signal received by the antenna and output the signal to the control unit 10. The control unit 10 can output a signal to the communication unit 40. The communication unit 40 can transmit the signal output from the control unit 10. Although not shown, the communication unit 40 includes a wireless LAN circuit and a wireless LAN antenna, and can perform short-range wireless communication with a WiFi-compatible device such as a WiFi access point based on WiFi (registered trademark).

  “Short-range wireless communication” means wireless communication performed in a state of being separated from several meters to several tens of meters. “Near field communication” is not limited to WiFi, and may be performed, for example, according to a Bluetooth (registered trademark) system.

  The communication unit 40 can communicate with, for example, online storage by wide-area wireless communication or short-range wireless communication. Here, the “online storage” is a storage device that is separate from the smartphone 1 and means a storage device that can be accessed by communication regardless of wired or wireless. In other words, “online storage” includes not only storage devices provided as a part of cloud services by business operators, but also storage devices installed on a LAN, or storage devices accessible via short-range wireless communication, for example. .

  The input unit 50 can receive an input for operating the smartphone 1 from the user, and can transmit a signal based on the input to the control unit 10. The input unit 50 includes a touch panel. The input unit may further include a button. The touch panel can accept a touch operation on one or a plurality of GUIs displayed on the display unit 20.

  The detachable memory 100 can be attached to the attachment unit 80. The control unit 10 can write data to the removable memory 100 attached to the attachment unit 80. Examples of the removable memory 100 include an SD card or a USB memory.

  Hereinafter, a specific configuration of the storage unit 30 will be described. The storage unit 30 includes a NAND flash memory. Known NAND-type flash memories include TLC (Triple Level Cell), MLC (Multi Level Cell), and SLC (Single Level Cell). The TLC can store 3 bits of information in one memory cell. The MLC can store 2-bit information in one memory cell. The SLC can store 1-bit information in one memory cell. Each writing speed increases in the order of TLC, MLC, and SLC. Each manufacturing cost increases in the order of TLC, MLC, and SLC. If attention is paid to the writing speed, it can be said that the storage unit 30 should be composed of SLC. However, it is limited due to the demand for cost reduction.

  In the smartphone 1, from the viewpoint of harmony between cost reduction and writing speed increase, the storage unit 30 includes a low-cost TLC, and a part of the TLC storage area is set to be usable as an SLC. Of the storage areas of the storage unit 30, a first storage area that can be used as a TLC is a first memory 31, and a second storage area that can be used as an SLC is a second memory 32. The first memory 31 and the second memory 32 are physically included in one nonvolatile memory. Data is constantly stored in the first memory 31. When there is a write request to the first memory 31 in the second memory 32, the data is constantly or temporarily written in order to speed up the data writing.

  The storage unit 30 may have any form as long as it can include a plurality of nonvolatile memories having different writing speeds. As the memory | storage part 30, eMMC (embedded Multi Media Card) can be mentioned, for example. The first memory 31 and the second memory 32 may be physically separate.

  The combination of the first memory 31 and the second memory 32 is not limited to TLC and SLC. Any combination may be used as long as the writing speed to the second memory 32 is higher than the writing speed to the first memory 31. For example, a part of the storage area of the TLC may be set to be usable as the MLC. Alternatively, a part of the MLC storage area may be set to be usable as the SLC.

  In the second memory 32, a predetermined number of times that data can be normally stored is set in advance. When the number of times of writing to the second memory 32 reaches the predetermined number of times of writing, subsequent writing to the second memory 32 is not guaranteed to be stored normally. Since the actual number of times that data writing cannot be stored normally varies from product to product, data writing is normal even if the number of times of writing is less than a preset number of times of writing. May not be remembered.

  When a write request to the first memory 31 is generated, writing data to the second memory 32 can speed up the data writing. However, the effect of speeding up such writing may not be realized by the user depending on the usage status of the smartphone 1. For example, when the display unit 20 is OFF for power saving, the user is not operating the smartphone 1 in most cases. If data is written to the second memory 32 up to such a case, the number of times of writing to the second memory 32 increases unnecessarily, and the life of the second memory 32 may be unnecessarily shortened. .

  Therefore, in the first embodiment, when a write request to the first memory 31 is generated, a predetermined condition that means that the smartphone 1 is in an operation state that does not need to speed up data writing is established. When data is written, data is not written to the second memory 32 but is written to the first memory 31. According to the smartphone 1, it is possible to suppress a reduction in the lifetime of the second memory 32 while reflecting an increase in data writing speed in a user operation.

  FIG. 3 is a flowchart for explaining the flow of processing performed by the control unit 10 of FIG. 2 when a write request to the first memory 31 is generated. As shown in FIG. 3, the control unit 10 determines whether or not a “predetermined condition” is satisfied in step S <b> 11. The “predetermined condition” is a condition corresponding to an operation state of the operation state of the smartphone 1 that does not require high-speed data writing. The specific conditions of the “predetermined conditions” will be described later.

  If the predetermined condition is not satisfied (NO in S11), the control unit 10 advances the process to step S12 as the case where it is necessary to speed up the data writing. The controller 10 writes the data to the second memory 32 in step S12 and ends the process. Data written to the second memory 32 is, for example, when the display unit 20 is OFF and no user operation is performed, when the capacity of the data written to the second memory 32 reaches a predetermined capacity, or when the OS Are collectively written into the first memory 31 at the timing of starting up.

  If the predetermined condition is satisfied (YES in S11), the control unit 10 advances the process to step S13 as the case where it is not necessary to speed up the data writing. In step S13, the control unit 10 writes data to the first memory 31 and ends the process.

  FIG. 4 is a diagram showing an example of the configuration of “predetermined conditions” in step S11 of FIG. As shown in FIG. 4, the control unit 10 determines whether or not the display unit 20 is OFF in step S <b> 111. If display unit 20 is ON (NO in S111), control unit 10 advances the process to step S112. When display unit 20 is OFF (YES in S111), control unit 10 determines that smartphone 1 is in an operating state that does not require speeding up of data writing, and proceeds to step S13 to store the data in the first memory. Write to 31. The case where the display unit 20 is OFF is, for example, a case where nothing is displayed on the display unit 20 or a case where the backlight of the display unit 20 is turned off.

  Most of the operations of the smartphone 1 are performed by a touch operation on a touch panel included in the input unit 50. Therefore, when display unit 20 is OFF (YES in S111), a touch operation from the touch panel is not performed. When the smartphone 1 is in such an operating state, the user hardly operates the smartphone 1 even if data writing is speeded up. Therefore, in the first embodiment, when the smartphone 1 is in an operation state in which the display unit 20 is OFF, data is written to the first memory 31 without being written to the second memory 32.

  In step S112, the control unit 10 determines whether or not the state where there is no touch operation on the touch panel has continued for a predetermined time. If there is a touch operation on the touch panel during a predetermined time (YES in S112), control unit 10 advances the process to step S113. When the state in which there is no touch operation on the touch panel continues for a predetermined time (NO in S112), the control unit 10 determines that the smartphone 1 is in an operation state that does not need to speed up data writing, and performs the process in step S13. To write data to the first memory 31.

  When the state in which the touch operation on the touch panel is not performed continues, the smartphone 1 leaves the user's hand, for example, is placed somewhere or is somewhere, and the subsequent user operation is not performed for a while. It is likely that you are in an unexpected situation. When the smartphone 1 is in such an operating state, the user hardly operates the smartphone 1 even if data writing is speeded up. Therefore, in the first embodiment, when the smartphone 1 is in an operation state in which the touch operation on the touch panel is not performed for a predetermined time, the data is not written to the second memory 32 but the first 1 Write to memory 31.

  In step S113, the control unit 10 determines whether or not the number of write requests to the first memory 31 received by the control unit 10 is smaller than a predetermined number. If the number of write requests to the first memory 31 received by the control unit 10 is equal to or greater than the predetermined number (NO in S113), the control unit 10 advances the process to step S114. When the number of write requests to the first memory 31 received by the control unit 10 is smaller than the predetermined number (YES in S113), the control unit 10 does not require the smartphone 1 to speed up data writing. Assuming that it is in a state, the process proceeds to step S13 and data is written to the first memory 31.

  When the number of write requests to the first memory 31 received by the control unit 10 is small, the waiting time until another write request received by the control unit 10 is processed is shortened. Data writing can be expected to be processed in a short time without increasing the speed. When the smartphone 1 is in such an operating state, the user rarely feels slow in the operation of the smartphone 1 due to data writing. Therefore, in the first embodiment, when the smartphone 1 is in an operation state in which the number of write requests to the first memory 31 received by the control unit 10 is less than a predetermined number, the data is stored in the second Write to the first memory 31 without writing to the memory 32.

  In step S114, the control unit 10 determines whether the size of the data to be written is smaller than a predetermined size. If the size of the data to be written is equal to or larger than the predetermined size (NO in S114), control unit 10 advances the process to step S115. If the size of the data to be written is smaller than the predetermined size (YES in S114), control unit 10 proceeds to step S13 and proceeds to step S13, assuming that smartphone 1 is in an operating state that does not require high-speed data writing. Are written into the first memory 31.

  When the size of data to be written is small, the data writing time is shortened. When the smartphone 1 is in such an operating state, the user rarely feels slow in the operation of the smartphone 1 due to data writing. Therefore, in the first embodiment, when the smartphone 1 is in an operation state in which the size of data to be written is smaller than a predetermined size, the data is written to the first memory 31 without writing to the second memory 32. Include.

  In step S115, the control unit 10 determines whether or not the load factor of the control unit 10 is higher than a predetermined load factor. When the load factor of control unit 10 is equal to or lower than the predetermined load factor (NO in S115), control unit 10 advances the process to step S116. If the load factor of control unit 10 is higher than the predetermined load factor (YES in S115), control unit 10 assumes that smartphone 1 is in an operating state that does not require speeding up of data writing, and proceeds to step S13. Proceed to write data to the first memory 31. Here, the “load factor” is a ratio of a time during which the control unit 10 executes an application during a predetermined time to a predetermined time.

  When the load factor of the control unit 10 is high, the response of the application to the user operation is delayed. When the smartphone 1 is in such an operating state, even if data writing is speeded up, the degree to which the user operation is speeded up is small. Therefore, in the first embodiment, when the smartphone 1 is in an operation state in which the load factor of the control unit 10 is higher than a predetermined load factor, the first memory is not written to the second memory 32 without writing data. Write to 31.

  In step S116, the control unit 10 determines whether the data download speed by the communication unit 40 is lower than a predetermined speed. When the data download speed by communication unit 40 is equal to or higher than the predetermined speed (NO in S116), control unit 10 advances the process to step S12 and writes the data into second memory 32. If the data download speed by communication unit 40 is lower than the predetermined speed (YES in S116), control unit 10 performs the process on the assumption that smartphone 1 is in an operating state where it is not necessary to speed up data writing. Proceeding to S 13, the data is written into the first memory 31.

  When downloading of data by the communication unit 40 is slow, the download time becomes a bottleneck and the user often feels slow in the operation of the smartphone 1. When the smartphone 1 is in such an operating state, even if data writing is speeded up, the degree to which the user operation is speeded up is small. Therefore, in the first embodiment, when the smartphone 1 is in an operation state in which the data download speed by the communication unit 40 is lower than a predetermined speed, data is not written to the second memory 32. To the first memory 31.

  From the above, according to the smartphone 1 according to the first embodiment, when it is not necessary to speed up the writing of data (when a predetermined condition is satisfied), by not writing the data to the second memory 32, It is possible to prevent the lifetime of the second memory 32 from being shortened while reflecting an increase in data writing speed to the user operation. Specifically, according to the smartphone 1, since the number of times of writing to the second memory 32 can be reduced as compared with the conventional smartphone, the number of times of writing to the second memory 32 can be delayed from reaching the predetermined number of times of writing. it can. As a result, it is possible to suppress the lifetime of the second memory 32 from being shortened.

  In the first embodiment, the “predetermined condition” includes the conditions shown in S111 to S116 in FIG. The “predetermined condition” is not limited to such a configuration. FIG. 5 is a diagram illustrating another example of the “predetermined condition”. As shown in FIG. 5A, the “predetermined condition” may be configured by any one of the conditions S111 to S116. Alternatively, as illustrated in FIG. 5B, the “predetermined condition” may be a combination of two or more conditions of S111 to 116. Further, as shown in FIG. 5C, if the “predetermined condition” is a condition that means that the electronic device is in an operation state that does not need to speed up the data writing, the process proceeds to S111 to S116. Conditions other than those shown may be included. For example, the “predetermined condition” may include a condition that the total data size for each write request to the first memory 31 received by the control unit 10 is smaller than the predetermined size.

[Second Embodiment]
In 1st Embodiment, the case where data was written in the 2nd memory previously incorporated in the smart phone 1 was demonstrated. The memory for writing data is not limited to the memory built in the smartphone 1. In the second embodiment, a case will be described in which data is written to a third memory that is not built in the smartphone 1 in advance.

  The second embodiment is different from the first embodiment in the processing performed when the control unit 10 receives a data write request. That is, the process performed when control unit 10 receives a data write request replaces the process shown in FIG. 3 with the process shown in FIG. Since it is the same about other points, description is not repeated.

  FIG. 6 is a flowchart for explaining a flow of processing performed when the control unit 10 of the smartphone according to the second embodiment receives a data write request. As shown in FIG. 6, in step S <b> 21, the control unit 10 determines whether or not the received write request is a write request to the storage unit 30. When the received write request is a write request to the third memory (NO in S21), control unit 10 advances the process to step S22. In step S22, the control unit 10 writes data to the third memory, and proceeds to step S23.

  Examples of the third memory include the detachable memory 100 attached to the attachment unit 80 or the online storage 200 that has established a connection with the communication unit 40.

  If the received write request is a write request to storage unit 30 (YES in S21), control unit 10 advances the process to step S24.

  In step S24, the controller 10 determines whether or not a predetermined condition is satisfied. The “predetermined condition” corresponds to S11 of FIG. 3 in the first embodiment. If the predetermined condition is satisfied (YES in S24), control unit 10 proceeds to step S25 as the case where it is not necessary to speed up the data writing. In step S25, the control unit 10 writes the data to the first memory 31, and advances the process to step S23.

  If the predetermined condition is not satisfied (NO in S24), control unit 10 proceeds to step S26 as a case where it is necessary to speed up the data writing.

  In step S26, the control unit 10 determines whether or not the writing speed to the second memory 32 is faster than the writing speed to the third memory. When the writing speed to second memory 32 is equal to or lower than the writing speed to third memory (NO in S26), control unit 10 advances the process to step S27. In step S27, the control unit 10 writes the data to the third memory and advances the process to step S23.

  When the writing speed to second memory 32 is faster than the writing speed to third memory (YES in S26), control unit 10 advances the process to step S28. The controller 10 writes the data to the second memory 32 in step S28 and advances the process to step S23.

  When data can be written to both the removable memory 100 and the online storage 200, data is written to the second memory 32, the removable memory 100, and the memory having the fastest writing speed among the online storage 200. .

  For the writing speed to be compared in step S26, the recording speed recorded in the first memory 31 is referred to. How the writing speed is stored in the first memory 31 and how to determine the writing speed referred to by the control unit 10 will be described later.

  In step S23, the control unit 10 records the writing speed when data is written in steps S22, S25, S27, and S28 in the first memory 31, and ends the process.

  FIG. 7 is a diagram showing an image of the writing speed recorded in the first memory 31. The writing speed is recorded in association with the state of a factor that affects the writing speed for each target to which data is written. In the case of the first memory 31, the second memory 32, and the removable memory 100, factors that affect the writing speed include the size of the written data and the free space. In the second embodiment, the size of the written data has three levels of large, medium, and small, and the free space has two levels of large and small.

  Factors affecting the writing speed include the size of written data, the radio wave environment, and the communication method in the case of online storage. Here, the “radio wave environment” is a factor based on the intensity of the radio wave received by the communication unit 40, and there are two stages of “good” and “bad” in the second embodiment. As the state of the communication method, communication methods of wide area wireless communication and short-range wireless communication are recorded. Examples of wide area wireless communication systems include LTE and CDMA. Examples of short-range wireless communication methods include WiFi and Bluetooth. Factors and states that affect the writing speed are not limited to those shown in FIG.

  In step S <b> 26 of FIG. 6, the control unit 10 specifies the state of factors that affect the writing speed to the second memory 32 and the writing speed to the third memory. The control unit 10 refers to the writing speed to the second memory 32 and the writing speed to the third memory corresponding to the specified state in the first memory 31, and compares the speeds of the two. For example, if the third memory is the removable memory 100, the size of the data to be written is “medium”, the free capacity of the second memory 32 is “small”, and the free capacity of the removable memory 100 is “large”. It is assumed that the control unit 10 has specified. In this case, V4 is referred to as the writing speed to the second memory 32, V9 is referred to as the writing speed to the third memory, and the two are compared.

  If the writing speed corresponding to the specified state is not recorded in the first memory 31, the speed is determined using the predetermined writing speed to the second memory 32 and the predetermined writing speed to the third memory. A comparison may be made. Alternatively, data may be written to the second memory 32 or the third memory without performing speed comparison.

  Thus, by using the writing speed recorded in association with the state of the factor affecting the writing speed for the speed comparison in step S26, the speed comparison more suitable for the situation where the write request to the first memory 31 is generated. Is possible. As a result, the data writing speed can be further increased.

  From the above, according to the smartphone according to the second embodiment, the data writing speed is increased by not writing the data when it is not necessary to speed up the data writing (when a predetermined condition is satisfied). Can be prevented from being shortened while the life of the second memory 32 is shortened.

  In the second embodiment, when it is necessary to speed up data writing (when a predetermined condition is not satisfied), the writing speed to the third memory and the writing speed to the second memory 32 are further set. Compare and write data to the faster writing speed. When the writing speed to the third memory is equal to or higher than the writing speed to the second memory 32, data is written to the third memory. Therefore, the number of times of writing in the second memory 32 is smaller than that in the first embodiment. Increase can be suppressed. As a result, the lifetime of the second memory 32 can be further suppressed from being shortened.

  In the second embodiment, data may be written to the third memory, which has a higher writing speed than the second memory 32. Therefore, the data writing speed is further increased as compared with the first embodiment. can do.

  In the second embodiment, the writing speed used for the speed comparison in step S26 in FIG. The writing speed used for this comparison may be calculated dynamically instead of referring to that stored in the first memory 31.

  In the second embodiment, the writing speed to the first memory 31, the second memory 32, and the third memory is recorded in the first memory 31. The memory in which the writing speed to each memory is stored is not limited to the first memory 31. For example, the writing speed to each memory may be recorded in a volatile storage element included in the control unit 10.

  In the second embodiment, the writing speed is recorded in the first memory 31 each time data is written. Instead of recording the write speed in the first memory 31 each time data is written, a predetermined write speed may be stored in the first memory 31 in advance.

  In the second embodiment, data is written to the first memory 31 when a predetermined condition is satisfied. Data may be written to the third memory when a predetermined condition is satisfied. For example, as shown in FIG. 8, when the writing speed to the third memory is equal to or higher than the writing speed to the first memory 31 (NO in S29), data may be written to the third memory.

  In the second embodiment, data is written to the second memory 32 when the writing speed to the second memory 32 is the fastest among the memories into which data can be written. If writing to the third memory is possible, data may not be written to the second memory 32. For example, as shown in FIG. 9, when the writing speed to the third memory is higher than the writing speed to the first memory 31 (NO in S29), the data is written to the third memory (S27). It doesn't matter. By adopting such a processing flow, it is possible to further suppress the life of the second memory 32 from being shortened.

  Even when the storage unit 30 does not include the second memory, a memory whose writing speed is faster than the first memory 31 is mounted on the mounting unit 80, or such a memory and the communication unit 40 establish communication. Thus, the data writing speed can be increased.

  The embodiments disclosed this time are also scheduled to be implemented in appropriate combinations. The embodiment disclosed this time should be considered as illustrative in all points and not restrictive. The scope of the present disclosure is defined by the terms of the claims, rather than the description above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.

  DESCRIPTION OF SYMBOLS 1 Smart phone, 10 Control part, 20 Display part, 30 Storage part, 31 1st memory, 32 2nd memory, 40 Communication part, 50 Input part, 60 Microphone, 70 Speaker, 80 Wearing part, 100 Detachable memory, 200 Online storage.

Claims (11)

Electronic equipment,
A non-volatile first memory;
A non-volatile second memory having a higher writing speed than the first memory;
A controller configured to receive a request to write data to the first memory ;
A display unit configured to display one or more GUIs (Graphical User Interfaces) for operating the electronic device;
An input unit including a touch panel configured to accept a touch operation on the one or more GUIs ,
When the control unit receives the write request,
Writing the data to the first memory when a predetermined condition is satisfied, which means that the electronic device is in an operating state where it is not necessary to speed up the writing of the data;
When the predetermined condition is not satisfied, the data is configured to be written to the second memory ,
The electronic device includes at least one of a condition that the display unit is OFF, and a condition that a state in which there is no touch operation continues for a predetermined time . Electronic equipment,
A non-volatile first memory;
A non-volatile second memory having a higher writing speed than the first memory;
A controller configured to receive a request to write data to the first memory,
When the control unit receives the write request,
Writing the data to the first memory when a predetermined condition is satisfied, which means that the electronic device is in an operating state where it is not necessary to speed up the writing of the data;
When the predetermined condition is not satisfied, the data is configured to be written to the second memory,
The predetermined condition includes a condition that the number of write requests received by the control unit is smaller than a predetermined number, a condition that the data size is smaller than a predetermined size, and a load factor of the control unit is predetermined. An electronic device including at least one of the conditions that the load factor is higher. A communication unit;
Wherein the predetermined condition includes a condition that the speed of downloading of data by the communication unit is smaller than a predetermined speed, the electronic device according to claim 1 or 2. A physically non-volatile memory including a first storage area and a second storage area;
The first storage area corresponds to the first memory,
The second storage area corresponds to the second memory, the electronic apparatus according to claim 1 or 2. The first memory is a flash memory in which the amount of information that can be stored in one memory cell is a first number of bits,
The second memory is a flash memory in which the information amount is a second number of bits;
It said first number of bits is greater than the number of the second bit, the electronic device according to claim 1 or 2. The controller is
In a given case, it is possible to write data to a non-volatile third memory different from both the first memory and the second memory,
When the predetermined condition is not satisfied when the write request is received in the predetermined case,
Writing the data to the second memory when a first writing speed to the second memory is faster than a second writing speed to the third memory;
Wherein when the first write speed is smaller than the second writing speed, and the data to write into said third memory, the electronic apparatus according to claim 1 or 2. The first memory is
Storing the write speed to the second memory and the state of the first factor that is one or more factors affecting the write speed to the second memory in association with each other;
A write speed to the third memory and a state of a second factor that is one or more factors affecting the write speed to the third memory are associated and stored;
When the control unit receives the write request,
Identifying a first state of the first factor and a second state of the second factor;
The write speed associated with the first state and stored in the first memory is the first write speed,
The electronic device according to claim 6 , wherein the electronic device is configured such that a writing speed associated with the second state and stored in the first memory is the second writing speed. The controller is
When data is written to the second memory, the writing speed to the second memory and the state of the first factor are associated and recorded in the first memory,
When data is written to the third memory, the write speed to the third memory and the state of the second factor are associated with each other and recorded in the first memory. Item 8. The electronic device according to Item 7 . The first factor includes the size of data and the free capacity of the first memory,
The electronic device according to claim 8 , wherein the second factor includes the size. The apparatus further includes a mounting portion on which the removable memory as the third memory can be mounted,
The predetermined case is a case where the removable memory is attached to the attachment part,
The electronic device according to claim 9 , wherein the second factor further includes a free capacity of the removable memory. A communication unit capable of communicating with the online storage as the third memory;
The predetermined case is a case where the communication unit has established communication with the online storage,
The electronic device according to claim 9 , wherein the second factor further includes the communication method and a radio wave environment in the communication.