CN1963803B - Storage device for playable media - Google Patents

Abstract

This invention relates to one play media memory device, which comprises the following parts: one memory unit to store media file, default play list and one media list; at least one communication interface composed of one parallel interface to connect outer computer system to make the memory device directly used as outer computer; one control panel set in proper position of memory device to generate control signals according to user operation; one process unit to connect one data control unit through one inner control interface to output media files decoding.

Description

storage device for playable media

【Technical field】

The invention relates to a storage device capable of playing media, especially a storage device capable of playing audio stored in the storage device when it is not connected to an external data processing system through a communication interface. the

【Background technique】

With the development of semiconductor storage technology, semiconductor storage devices (hereinafter referred to as storage devices) are widely used in various data processing systems due to their large capacity, high speed, and light weight. Computers, digital cameras, mobile phones, audio players, etc. In these data processing systems, storage devices are used to store various types of data, such as files related to operating systems, files related to various application systems, text files, image files, audio files, and video files. the

The storage device in the data processing system can be divided into two types, one is the storage device that is fixed in the data processing system and generally does not need to be replaced or moved, such as in various computer systems (notebook computers, desktop computers, etc.) hard drives and storage devices in audio players. The other is a removable storage device that can be connected to the data processing system through an external communication interface of the data processing system, such as a removable hard disk and various types of flash memory devices. the

Generally speaking, various storage devices usually only support one standard communication interface. For example, a hard disk generally only includes a parallel communication interface (such as an IDE communication interface), and a mobile hard disk or various flash storage devices only include a general-purpose serial communication interface. Bus communication interface (such as USB communication interface). Therefore, each storage device can only be used in a data processing system that supports this type of communication interface. Since data exchange is often required between various data processing systems, if a storage device is to be used in a data processing system that supports other communication interfaces When it is necessary to use an adapter or a reader-writer with a transfer function, this not only increases the burden on the user, but also brings a lot of inconvenience to the user. For example, when a user goes out to use a portable data processing system, he must carry a special adapter or reader. If he forgets to carry the special adapter or reader, he cannot read data from the storage device. the

Therefore, there has been a storage device that can support multiple interfaces. The storage device can include multiple parallel communication interfaces and/or serial communication interfaces, so that the storage device can be used in data processing systems with different communication interfaces. middle. However, this kind of storage device supporting multiple interfaces still has disadvantages: when the storage device is not connected to the data processing system through the communication interface, the storage device cannot play the audio files stored in it, and the storage device cannot be optimized. The best use is that when the storage device is not connected to the data processing system through the communication interface, it cannot be used as an independently operable audio processing device. the

And for general portable electronic device such as media player, it can carry out communication with external data processing system through a serial communication interface (such as: universal serial bus communication interface), but because it does not support parallel communication interface (such as IDE communication interface), it cannot be directly used as a hard disk; and it cannot play relevant media files according to the playlist set in the external data processing system. the

【Content of invention】

In view of this, it is necessary to propose a storage device capable of playing media, which can play media files stored in the storage device when it is not connected to an external data processing system through a communication interface. the

The above storage device for playable media can also play media files stored in the storage device according to the user's preference or randomly. the

The above-mentioned storage device can also be used as a mobile briefcase when it is connected to an external data processing system through a serial communication interface. the

The storage device for playing media includes a storage unit for storing data, the data includes media files, default playlists and a media list; at least one communication interface, including a parallel communication interface, for connecting In the external computer system, the storage device is directly used as the hard disk of the external computer; a control panel is arranged at an appropriate position of the storage device, and the control panel is used to generate control signals according to user operations; and a processing unit, through a The internal control interface is connected with a data control unit to decode and output the media file in response to the control signal. the

The storage device of the playable media further includes the following features: when the control signal is a random play signal, the processing unit randomly generates a random play list according to the media list and sequentially decodes and outputs the media file; when the When the control signal is a default play signal, the processing unit plays the decoded output of the media files sequentially according to the default play list. the

The storage device of the playable medium further includes a digital/analog conversion unit and at least one audio output unit, which is used to convert the audio signal output by the processing unit into an analog signal and output it to the audio output unit; a serial communication interface , used for electrical connection between the storage device and the external data processing system, the data control unit controls the external data processing system to read, write and calculate the data in the storage unit; a power management unit and a rechargeable battery are used for the multiple When the communication interface unit is not electrically connected to the external data processing system, it provides power supply to the storage device; a power control unit and a power management unit can also be used to obtain from the communication interface when one of the communication interface units is electrically connected to the external data processing system. power supply, and supply power to the rechargeable battery for charging. the

The storage device for playable media further includes the following features: when the storage device is connected to the external data processing system through the serial communication interface, the path of personal preference information and setting information in the external data processing system is changed; The corresponding files and setting information in the public storage area are externally connected to the original path of the computer, and the relevant settings are checked; general operations are performed; when the operation is completed, the personal preference files and the changed paths in the external data processing system are restored. Set the path of the information. the

Through the above-mentioned storage device, the audio data stored in it can be played according to the user's preference when it is not connected to the data processing system through the communication interface, and the storage device is effectively used, so that the storage device can be better utilized value. the

Through the above-mentioned storage device, it can further be used as a mobile briefcase when it is connected to the data processing system through the serial communication interface, and the user can use other people's computers in a familiar environment and play a role in keeping secrets. the

【Description of drawings】

FIG. 1 is a block diagram of an embodiment of a storage device for playable media. the

FIG. 2 is a schematic diagram of division of storage areas of a storage unit in this embodiment. the

FIG. 3 is a schematic diagram of the use of the storage device when it is electrically connected to an external data processing system through the communication interface group or used independently in this embodiment. the

FIG. 4 is a flow chart of the processing unit controlling the playback of audio files in this embodiment. the

FIG. 5 is a flow chart when the storage device is used as a mobile briefcase in this embodiment. the

【Detailed ways】

Referring to FIG. 1 , it is a block diagram of an embodiment of a playable media storage device. The storage device 1 can be a removable hard disk, which includes a storage unit 11 , a communication interface group 12 composed of a plurality of communication interfaces, an internal control interface 13 and a processing unit 14 . The storage unit 11 stores various data such as operating system related files, various application system related files, media files, default playlists and a media list, and the media files can be audio files, video files, images and video files and text files etc. The communication interface group 12 includes but not limited to a parallel communication interface 121 and a serial communication interface 122, the parallel communication interface 121 can be an IDE (Integrated Device Electronics) communication interface or SCSI (SmallComputer System Interface), and the serial The communication interface 122 can be a universal serial bus (Universal Serial Bus, USB) communication interface. The processing unit 14 can be a central processing unit (Central Processing Unit, CPU) or a micro-processing unit (Micro-programmed Control Unit, MCU), and the internal control interface 13 is connected to the data (Data) input port of the processing unit 14. The storage device 1 can be electrically connected to an external data processing system (not shown) through each communication interface in the communication interface group 12, and the external data processing system can read, write and calculate the data stored in the storage unit 11. processing; and when the storage device 1 is not connected to an external data processing system, the processing unit 14 can read, write and calculate the data of the storage unit 11 through the internal control interface 13, and the external data processing system can be each types of computer systems. Wherein, when the storage device 1 is electrically connected to an external data processing system through the parallel communication interface 121, the storage device 1 is directly used as a hard disk; and the storage device 1 is electrically connected to an external data processing system through the serial communication interface 122. When processing the system, the storage device 1 is used as a mobile briefcase (the introduction of the mobile briefcase function is shown in Figure 5 for details), and the serial communication interface is a SATA (Serial AT Attachment) interface or other interface, so that the storage When the device 1 is electrically connected to an external data processing system through the serial communication interface 122, it can be used as a serial hard disk. the

In order to control the external data processing system and the processing unit 14 to read, write and process the data of the storage unit 11 , the storage device 1 further includes a data control unit 15 . The data control unit 15 includes a plurality of pins respectively connected to each communication interface of the communication interface group 12 , the internal control interface 13 and the storage unit 11 . When the storage device 1 is electrically connected to an external data processing system through a communication interface of the communication interface group 12, the pin connected to the communication interface is connected to the pin connected to the storage unit 11, and the external data processing system The system can read, write and calculate the data of the storage unit 11 . For example, when the storage device 1 is electrically connected to the external data processing system through the parallel communication interface 121, the data control unit 15 makes the pin connected to the parallel communication interface 121 and the pin connected to the storage unit 11 conduct, The external data processing system can read, write and calculate the data of the storage unit 11 through the parallel communication interface 121; and when the storage device 1 is electrically connected to the external data processing system through the serial communication interface 122, the The data control unit 15 makes the pin connected to the serial communication interface 122 conduct with the pin connected to the storage unit 11, and the external data processing system can read the data of the storage unit 11 through the serial communication interface 122. Write and operation processing. When the storage device 1 is not electrically connected to the external data processing system through the communication interface group 12, the data control unit 15 makes the pins of the internal control interface 13 conduct with the pins connected to the storage unit 11, and the processing The unit 12 reads, writes and processes the data of the storage unit 11 through the internal control interface 13 . the

The storage device 1 further includes a power control unit 16 , a power management unit 17 and a rechargeable battery 18 . The power control unit 16 includes a plurality of pins, one of which is connected to the storage unit 11 and the power management unit 17 , and the other pins are respectively connected to each communication interface and the internal control interface 13 of the communication interface group 12 . The power management unit 17 is responsible for supplying power to all components of the storage device 1 , and it can also be directly connected to the internal control interface 13 , the rechargeable battery 18 and the power (PWR) port of the processing unit 14 . When the storage device 1 is connected to the external data processing system through a communication interface of the communication interface group 12, the power control unit 16 connects the pins of the storage unit 11 and the power management unit 17 to the pins of the communication interface. The pin is turned on to obtain electric energy from the communication interface, provide electric energy to the storage device 1 so that each element of the storage device 1 can operate, and the rechargeable battery 18 can be charged. For example, when the storage device 1 is electrically connected to the external data processing system through the parallel communication interface 121, the power control unit 16 enables the pins connected to the storage unit 11 and the power management unit 17 to be connected to the parallel communication interface. The pin of 121 is turned on to obtain electric energy from the parallel communication interface 121; and when the storage device 1 is electrically connected to the external data processing system through the serial communication interface 122, the power control unit 16 is connected to the storage unit 11 and the pins of the power management unit 17 are connected to the pins of the serial communication interface 122 to obtain power from the serial communication interface 122 . However, when any communication interface of the communication interface group 12 is not electrically connected to the external data processing system, the rechargeable battery 18 can provide power to the components of the storage device 1 through the power management unit 17 . the

The storage device 1 further includes a control panel 19 , a digital/analog conversion unit 20 , an audio output unit 21 and a display unit 22 . The D/A conversion unit 20 is connected to the data (Data) output port of the processing unit 14 , and the control panel 19 and the display unit 22 are connected to the control (CTL) port of the processing unit 14 . The processing unit 14 can obtain the audio file stored in the storage unit 11 through the internal control interface 13 and the data control unit 15, and decode the audio file and output the digital audio signal to the digital/analog conversion unit 20, the The digital/analog conversion unit 20 converts the digital audio signal into an analog signal and outputs it to the audio output unit 21 to play the audio file. The control panel 19 is arranged at a proper position on the surface of the storage device 1 , and the control panel 19 outputs a control signal to the processing unit 14 , which can control the processing unit 14 to read, write and calculate the data of the storage unit 11 . When the control signal is a random play mode control signal, the processing unit 14 obtains the media list from the storage unit 11, and generates a random play list, and plays audio files in order according to the random play list; When the playback mode control signal is saved, the processing unit 14 controls to play the audio files sequentially according to the default playlist stored in the storage unit 11 . The buttons provided on the control panel 19 may include but not limited to: random play, default play, pause, play, next song, previous song play, volume adjustment, and power switch. The display unit 22 is arranged at an appropriate position on the surface of the storage device 1 for displaying information related to audio playback, such as playback status, playback media information, and playlists. the

Of course, when the storage device 1 is not electrically connected to the external data processing system through the communication interface group 12, the storage device 1 can also independently complete other functions, such as the browsing function of electronic files, in addition to being able to play audio as described above. . In order to complete the independent function of the storage device 1, the storage device can replace the control panel 19, the digital/analog conversion unit 20, the audio output unit 21 and the display unit 22 with other modules or components to achieve the independent function. the

Referring to FIG. 2 , it is a schematic diagram of division of storage areas of the storage unit 11 in this embodiment. In this embodiment, the storage area of the storage unit 11 can be divided into an internal access area 110 , an external access area 112 and a common area 114 . Wherein the internal access area 110 stores data that is only allowed to be accessed by the above-mentioned processing unit 12, such as when any communication interface in the communication interface group 12 of the storage device 1 is not electrically connected to an external data processing system, the storage device 1 plays audio related Setting information; the external access area 112 stores data that can be read, written and processed by the external data processing system, that is, the storage device 1 can be used as a hard disk or/and data required for mobile briefcase use, such as operating system-related Files, files related to various application systems, text files, image files and video files; the public storage area stores data accessible to both the processing unit 14 and external data processing systems, such as audio files and playlists. The external access area 112 can be further divided into a hard disk area 1120 , a mobile briefcase area 1122 and an external access public area 1124 . Wherein, the hard disk area 1120 stores operating system related files, various application system related files and various files; the mobile briefcase area 1122 stores external data processing system (such as computer) environment setting information, commonly used software (mail software system, Such as the setting information of Outlook); This external access public area 1124 can store various personal preference files and folders, such as my favorite (My Favorite) folder, my file (My Document) folder and mail folder ( such as storing incoming mail). the

Referring to FIG. 3 , it is a schematic diagram of the use of the storage device 1 in this embodiment when it is electrically connected to an external data processing system through the communication interface group 12 or used independently. First, it is judged whether the storage device 1 is electrically connected to the external data processing system through the communication interface group 12 (step S300), if the storage device 1 is electrically connected to the external data processing system through the communication interface group 12, then the storage device is judged 1 whether to connect electrically to the external data processing system through the parallel communication interface 121 (step S301), if the storage device 1 is electrically connected to the external data processing system through the parallel communication interface 121, then the storage device 1 can be directly regarded as the external data processing system Handle the hard disk usage of the system (step S303). And if the storage device 1 is not electrically connected to the external data processing system through the parallel communication interface 121, that is, the storage device 1 is electrically connected to the external data processing system through the serial communication interface 122, then the storage device 1 can be used as a mobile document Package usage (step S302). In step S300, if the storage device 1 is not electrically connected to the external data processing system through the communication interface set 12, the processing unit 14 of the storage device 1 can play the media file in the storage unit 11, the media file is particularly audio files (step S304). the

Referring to FIG. 4 , it is a flow chart of the processing unit 14 controlling the playback of audio files in the embodiment. First, the control panel 19 receives a control signal, wherein the control signal is a playback mode selection signal, and transmits the control signal to the processing unit 14 (step S400 ). The processing unit 14 determines the play mode of the storage device 1 according to the control signal (step S401), when the play mode is random play, the processing unit 12 obtains the audio list from the storage unit 11 (step S402), and generates a random play list (step S403). After decoding the audio file according to the random play list, the digital audio signal is output to the digital/analog conversion unit 20 (step S405), and the digital/analog conversion unit 20 converts the digital audio signal into an analog audio signal, and outputs the analog audio signal. The audio signal is sent to the audio output unit 21 (step S406). The display unit 22 displays the relevant information of the audio playback (step S407), and the processing unit 12 judges whether the control signal output by the control panel 19 is received (step S408). Perform corresponding operations on the data in the storage unit 11 or perform corresponding controls (step S409); if a control signal is not received, return to step S405 to continue decoding and outputting the audio files in sequence. In said step S401, when the play mode is default play, then obtain the default playlist (step S404), then enter step S405, output the digital audio signal to the digital audio signal after decoding the audio file according to the default playlist /mode conversion unit 20, the following steps are the same as above. the

Referring to FIG. 5 , it is a flow chart of the storage device 1 used as a mobile briefcase in the embodiment. In this illustration, for better illustration, the external data processing system described above is replaced by a computer. First, the storage device 1 establishes a connection with a computer through the serial communication interface 122 (step S500); calls the application program, and judges whether the user using the storage device 1 is a legitimate user according to the set password (step S501); If the received password does not match the preset password, the operation ends; if the received password matches the preset password, then it is judged according to the user's selection whether the use mode of the computer is the client mode (step S502). If the use mode of the computer is not the client mode, then the storage device 1 is used as a general removable storage device, and the user can select files and settings that need to be backed up, and store them in the storage unit 11 of the storage device 1, or Store the files in the storage device 1 in the computer (step S503); if the use mode of the computer is the client mode, then change the path of personal preference files and setting information in the computer (step S504); All kinds of personal favorite folders in 11 and the path of setting information are connected to the original path of the corresponding folder in the computer, and check the relevant settings (step S505); carry out general operations, such as sending and receiving emails, using Internet Explorer and editing Files, etc. (step S506); automatically store the files generated during the operation into the corresponding file folder of the corresponding storage unit 11 (step S507); restore the path of the personal preference file and the setting information of the changed path in the computer when the operation is finished It is the original path (step S508), so the operation can be ended. the

Claims (12)

1. A storage device for playable media, characterized in that the device comprises: A storage unit, which is used to store data, the data includes media files, default playlists and a media list; A data control unit, used to control the reading, writing and calculation of data in the storage unit; A communication interface group, the communication interface group includes a parallel communication interface and a serial communication interface, wherein, when the storage device is electrically connected to an external data processing system through the parallel communication interface, the storage device is directly regarded as the external data processing system The hard disk of the processing system is used; when the storage device is electrically connected to the external data processing system through the serial communication interface, the storage device is used as a mobile briefcase; a control panel, which is arranged at an appropriate position of the storage device, the control panel is used to generate control signals according to user operations; and A processing unit, which is connected to the data control unit through an internal control interface, and when the storage device is not electrically connected to the external data processing system through the communication interface group, the processing unit responds to the above-mentioned control signal through the internal control interface And the data control unit decodes and outputs the above-mentioned media file. 2. The storage device according to claim 1, wherein when the control signal is a random play signal, the processing unit randomly generates a random play list according to the media list and sequentially decodes the media files and outputs The audio signal obtained after decoding; when the above control signal is a default play signal, the processing unit plays the decoded media file in sequence according to the above default playlist and outputs the decoded audio signal. 3. The storage device according to claim 2, further comprising a digital/analog conversion unit and at least one audio output unit, for converting the audio signal output by the above-mentioned processing unit into an analog signal and outputting it to the above-mentioned audio output unit. 4. The storage device according to claim 1, wherein the serial communication interface is a USB communication interface, and the parallel communication interface is an IDE communication interface, a SCSI communication interface or a SATA communication interface. 5. The storage device according to claim 1, wherein the storage unit comprises: an internal storage area storing data that is only accessible to the aforementioned processing unit; An external system access area, storing data that can be read, written and processed by the external data processing system; and A common storage area stores data accessible to both the above-mentioned processing unit and the external data processing system. 6. The storage device according to claim 5, wherein when the storage device is connected to the external data processing system through the serial communication interface, the path of personal preference information and setting information in the external data processing system is changed ; Externally connect the corresponding file folder and setting information in the public storage area to the original path of the above-mentioned external data processing system, and check the relevant settings; perform general operations; restore the changed data in the external data processing system when the operation is completed The path of the personal preference folder and the path of setting information. 7. The storage device according to claim 6, wherein the personal preference information and setting information include computer personal environment setting information, personal preference files, and setting information of commonly used software. 8. The storage device according to claim 4, further comprising a power management unit and a rechargeable battery for providing power to the storage device when the communication interface group is not electrically connected to an external data processing system . 9. The storage device as claimed in claim 8, further comprising a power control unit configured to power the parallel communication interface or the serial communication interface when the above-mentioned parallel communication interface or serial communication interface is electrically connected to an external data processing system. The communication interface obtains power, and supplies the power to the above-mentioned rechargeable battery for charging. 10. The storage device according to claim 1, further comprising a display unit disposed at a proper position on the surface of the storage device for displaying information related to media playback. 11. The storage device according to claim 1, wherein the buttons provided on the control panel include: random play, default play, pause play, next song, previous song play, volume adjustment, and power switch . 12. The storage device according to any one of claims 1 to 11, wherein the storage device is a removable hard disk.

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