TW591418B - Storage device for rapidly detecting the remaining memory capacity and the method thereof - Google Patents

Abstract

A storage device for rapidly detecting the remaining memory capacity and the method thereof are provided, wherein the storage device is connected to the data processor for storage and exchange of data. The device comprises a case having the microprocessor and the flash memory, a USB interface for connecting the data processor with the storage device, a liquid crystal display panel for displaying the remaining memory capacity, a control knob for activating the detection of remaining memory capacity, and a DC power supply for supplying the power of the storage device. The method is provided to obtain the remaining memory capacity by subtracting the used memory capacity from the total memory capacity.

Description

The present invention relates to a method for detecting remaining memory, and more particularly, to a storage device and a storage device and a method thereof capable of immediate blessing: Storage of remaining memory capacity 591418 [prior art]

With the maturity and development of the information age, Yi & H votes, s_, office workers, etc. In the life of modern people, information has been paid and paid as frequently as daily necessities, σ _ ,. Only programs such as program software, dissertation documents, design drafts, stock market information, MP3, MP4, and ^ 4 temples can be obtained everywhere. And people are facing such a large amount of f news

Many transmission media are used for communication. For those who have 设备 * _T y and have network equipment, they can exchange data ^ network via email (E-insil, .f ^) or file transfer protocol (FTP). In the absence of network equipment, people often need a storage device with an appropriate capacity to back up the data. Currently, the storage devices used are floppy disks, hard disks, optical disks, DVDs and M0. At the same time, as computer peripherals mature, the portability and usability of the above storage devices are becoming more and more convenient. However, the disadvantage is that the above problem causes great inconvenience for users, as shown in Figure 丨In order to solve the above-mentioned problems, the main Fengming Department of Kangli-Iwei-Learning-Knowing-Knowledge II has proposed a storage that can detect the remaining memory capacity immediately. Device and method thereof

Fifth, the invention explains that the important ones can grasp the remaining memory space, and store them as materials. And the moon dagger will all need [invention content] Rong Yi :: Γ The main purpose is to provide-a type that can be detected immediately, and then you are left to the storage device 4, which allows users to store data !!: Memory 1 Remaining memory space. Zibeike is able to handle another purpose, which is to provide a kind of storage device that can be immediately reassured: It can allow users to "remember the remaining memory space at any time." Storing another object of the present invention, the method of capacity, can make; = the remaining memory space of the memory. ， ， 4 is enough to know ί κ * *: memory = let the user in the shortest Another feature of the present invention is to provide a method of standing capacity, which can be applied to a variety of operating systems (^ Remaining Memory :: Provides a method that can immediately detect the remaining memory System and its method, the storage device can store and exchange data with the stored data stored in the data processing system, which includes a housing with a micro processing unit for connecting the data processing machine and the storage device. Jin 2 memory surface, the liquid level used to display the remaining memory capacity: SB interface board, used to start 591418

ϊ ΐ ί: ϊ :! The control button of the body capacity, and a power supply for supplying the storage device and the second and third power sources, the method is to read the first magnetic zone (MBR) Liu Dan # 二 ά > After knowing the location of the number of regions ^ (bpb), learn the total memory of the memory, and then obtain the file allocation table (FAT) size and magnetic cluster. After the number and the capacity of each magnetic cluster, check the file 2 table : The number of occupied 'and calculate the used memory capacity; then subtract the used memory capacity from the total capacity to get the remaining [Embodiment] 111 The content of the present invention is more clear. The embodiments serve as examples through which the present invention can be implemented. ί Ming—kind—storage device that can instantly store the remaining memory capacity. Please refer to Fig. 2 for a schematic diagram of the appearance of the embodiment of the present invention. The hard disk drive 20 includes a liquid crystal display panel 21, a reset button 22, and a USB connector 26. The liquid crystal display panel 21 can display the remaining δ memory space of the portable hard disk; and the reset button 22 can start the function of the portable hard disk 2 to detect the remaining memory space, and the USB connector 26 can communicate with υ ^ β port computer connection for further data exchange. The power supply of the portable hard disk 20 in this embodiment may come from the portable hard disk 20 itself, some direct power, or an external DC power supply provided by the computer after being connected to a computer. The two different circuit configurations are described as follows: Reference is made to Figure 3a, which is the first circuit block of the embodiment of the present invention.

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Illustration. When the reset button 22 (see Fig. 2) is pressed, the power of the microprocessor 25 in the hard disk drive 20 is counted. The battery 23 is provided with the remaining memory capacity, and the calculation result is: : Internal, let users know that the remaining display of the storage medium = hard disk 20 is not connected to the computer, so the _ interface is used. Also, consider the diagram shown in Fig. 3b. 'Fig. 3b is a second circuit diagram of an embodiment of the present invention. The portable hard disk 20 is connected to the computer 30 via the USB interface 26. At this time, the power required for the operation of the portable hard disk 20 is provided by the computer, so the dry power and 23 f are open circuits. The microprocessor 25 exchanges data with the computer 30 through the USB interface 26, and the portable hard disk 20 stores the exchanged data in the storage medium 24. Microprocessor 25 calculates the remaining memory capacity of storage medium 24 and outputs it to the LCD panel 21 to let the user know the remaining memory capacity of the storage medium. When the M 20 hard disk 20 is connected to the computer 30, there is an action interaction with the exchange of data between the hard disk 20 and the computer 30. The interactive procedure is as follows: " Monthly reference is shown in Figure 4a Figure 4a is a host-side flowchart of interaction with a computer according to an embodiment of the present invention. Step 4al: The host 30 provides the power supply of the device (the portable hard disk 20); Step 4a2: The host 30 requests a response from the device 20 to confirm the location of the device 20; Step 4a3: the host 30 receives the variable of the device 20 Response; Step 4a4: The host 30 issues a read action to the device 20; Step 4a5: Confirm whether the host 30 continues to issue a read command? If yes, then enter

Item 591418 fetches the instruction and returns to step 4a6. If not, proceed to step 4a7. Step 4a 6: The device 20 completes the step 4a5 issued by the host 30; step 4a7: ends the action. Interactive device-side flowchart. After the source; the remaining memory capacity of the media 24. FIG. 4b is an embodiment of the present invention and the computer. Step 4bl: When the host 30 supplies the device 20 with electricity 4b2, the microprocessor 25 calculates the storage amount; step 4. The calculation result is output to the line crystal display surface to indicate the remaining memory capacity of the storage medium; let the user go to step 4b4: the device 20 waits for the host 30 to act; step 4b5: confirm whether the host is moving, or suddenly or step 4b8, if the host does not = machine 3〇 动 #, then proceed to step 4b ?: device 20 to complete the reading action step 4b8: t set 20 to perform the writing action; this ~ lion 5 ,: step 4b9: device 20 The operation steps to complete the writing are partial: Confirm whether the power provided by the host 30 is lost, then go to step 4bB, if it is retroactive, then go back to step 4b5; Step through: End the connection between the device 2G and the host 3G. From the above process, it can be seen that there is only a small amount of processing, and it is only possible to visit X Dan / 鄕 Γ〇 only in the first calculation of the memory name is written. "~ Nippon host 30 and portable hard disk 20 Read |. Work, and the memory capacity after this read or write will be in!

591418 Recalculated during a detection. For pain, the procedure of calculating the remaining memory capacity and speeding up the process of obtaining the remaining memory capacity. The present invention provides a method for detecting only the occupied number of the file allocation table (FAT) without knowing the details of the file. For a detailed process, please refer to FIG. 5. Step 51: first find the boot sector (MBR) in the storage medium 24; step 52; then obtain the position of the boot parameter section (BpB); step 53: obtain the total memory capacity of the storage medium 24; step 54: then read Take the boot sector to get the FAT size and format and the number of magnets; Step 55: Know how many sect0r a magnetic cluster has; Step 56: Search the FAT table to determine how many magnetic clusters are used, and count Used memory capacity; # Step 5 7 · Finally, subtract the used memory capacity from the total memory capacity of § to get the remaining memory space; Step 5 8 · Complete the calculation of the remaining memory space step. Since the present invention only needs to know the number of FAT occupied but not the details of its file, it can quickly obtain the remaining memory space number; meanwhile, the FAT system is widely used by ms — dos, Wind. ws95 and

Wind〇wS98 and so on, so this method is suitable for a variety of operating systems. The number of FAT bits can be 12, 16, 32, or 64; the following & is not the total memory capacity of FAT 16 and FAT32 and the number of sectors held by a single cluster:

Page 9 i ^;: \: ^ :: 591418 V. Description of the invention (7) 丨 Total capacity of logical drive (MB) FAT16 magnetic cluster size (KB) Number of magnetic sectors / magnetic cluster 0-32 0.5 1 33 -64 1 2 65-127 2 4 128-255 4 8 256-511 8 16 512-1023 16 32, 1024-2047 32 64 丨 The total capacity of the logical drive FAT32 Cluster size (KB) Number of sectors / magnetic Cluster 259MB or less 0.5 1 259MB-8GB 4 8 8-16GB 8 16!! 16-32GB 16 32 I 32GB or more 32 64 丨 1 page 10 Description of the invention (8) The present invention makes use of the function regardless of its function The use of the method + is very different from the conventional skills. The remaining wireless devices on the hh channel of this road can be known to the host without special restrictions, preferably "1: = No special restrictions on the storage device used, preferably ^ brand and storage media in the storage device. Remaining memory; == 22 'The method of calculating the number of storage (FAT) occupied by the present invention is to detect the file allocation table method, and it is not limited to-a way to grasp the details of its files The shortest time can: Ϊ work '® This allows the user to use the memory space left by the new, +, 1. The point, the two eyes are only used to illustrate the technical ideas and features of the present invention. Those who know this skill can understand the scope of the present invention. When it is not possible to limit the scope of the patent of the present invention, that is, an equal change or repair made by the spirit disclosed by Daming, still It should be included in the patent scope of the present invention. [Comparison of drawing number] 1 〇 Portable hard drive 11 USB connector 2 0 Portable hard drive 2 1 LCD display panel 22 Reset button 2 3 Dry battery 24 Storage medium 2 5 Microprocessor 26 USB interface

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V. Description of the invention (9) 30 Computer / host im Page 12 591418 The diagram briefly illustrates the features and advantages of the method according to the present invention will be more clearly understood from the following description in conjunction with the drawings, including: Figure 1 This is a schematic diagram of the appearance of a conventional art. FIG. 2 is a schematic diagram of an appearance of an embodiment of the present invention. Figure 3a is a block diagram of a first circuit according to an embodiment of the present invention. FIG. 3b is a block diagram of a second circuit according to an embodiment of the present invention. Figure 4a is a host-side flowchart of interaction with a computer according to an embodiment of the present invention. FIG. 4b is a device-side flowchart for interacting with a computer according to an embodiment of the present invention. FIG. 5 is a flowchart of calculating the remaining memory capacity of the present invention.

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Claims (1)

1 ^ 1418 Stl #, patent application scope 1 ·: a type that can immediately detect the remaining memory capacity f + can be connected to a data processor, love f storage device, the storage device / V system has _ microprocessor blood A controller is connected to the storage unit to store the early element. Among them, an interface module at the micro-site is shown by the unit 2; the ;; the shell material processor and the storage device, the body capacity; It is connected to the eli, used to display the remaining memory-unit, which is associated with the micro-processing unit, and the remaining memory capacity; and is used to start the detection of the remaining-: = supply unit, which is stored with the control unit. Power to the device. Connected 'is used to supply this. 2. For example: please apply for the scope of patent, the group is USB interface. Liangzi Weizhi 3. As described in the patent scope item 1, please use the LCD display panel. 4. If the scope of patent application is the first! The element is a reset button. The storage device described in the cloth booth 5 · If the first item in the scope of patent application is a computer. 6 · The storage device described in the patent application π L 一 L Item 1 is a flash memory. 7 · The storage device as described in patent application p L-^ around item 1 should be 7L as long as the DC power supply. 8 · Such as the application for a patented tendon 7 π. Page 14 591418-------: 2 __________ 6. Scope of Patent Application · ~ The source is a dry battery. 9. The storage device according to item 1 of the scope of patent application, which further includes an additional / power supply unit provided by the data processor. I 0 · The storage device according to item 1 of the scope of patent application, wherein the control unit is open when not in use. II. The storage device as described in item 1 of the patent application scope, wherein the control unit is closed when in use. 1 2 · —A method for immediately detecting the remaining memory capacity, including the following steps: (a) providing a storage device, the storage device has a microprocessor, a storage unit, and a power supply unit; (b) start a control unit; (c) read the first magnetic zone (MBR) of the storage unit; (d) obtain the position of the boot parameter section (BpB) of the storage unit; (e) learn the storage unit The total memory capacity; (ί) obtaining the size of a file allocation table (FAT) and the number of magnetic clusters; (g) obtaining the capacity of each magnetic cluster; (h) checking the number of occupied files in the file allocation table, And calculate the used memory capacity; and (i) subtract the used memory capacity from the total memory capacity to get the remaining memory capacity. 1 3 · As described in item 12 of the scope of the patent application, the basin & ^ 'price case configuration table Page 15 591418 ({\ r [1 VI. Patent application scope Size is 12 or 16 bits 1HIB1 Page 16