CN100416525C - Sound playing device with separable storage unit - Google Patents

Abstract

A sound playing device with a separable storage unit comprises a first module including a first shell, a first connection port and a storage unit for storing digital sound data, and a second module including a second shell, a controller for controlling the operation of the sound playing device, a flash memory for storing digital sound data, a second connection port detachably connected to the first connection port, a user interface for selecting digital sound data in the flash memory or selecting digital sound data stored in the storage unit through the first connection port and the second connection port, a decoder for converting the selected digital sound file into sound signals, and a sound output port for outputting sound signals converted by the decoder.

Description

Sound playback device with detachable storage unit

technical field

The invention relates to a sound playing device, in particular to a sound playing device with a detachable storage unit.

Background technique

With the advent of digital music, users can have another new music resource. Digital music can be stored in relatively small digital files, which in turn can be stored in portable non-volatile storage devices. Because of the popularity of digital music, portable music players, such as MP3 players, can be seen almost everywhere.

Generally speaking, the types of MP3 players can be distinguished by using different forms of memory as the medium for storing music data, and can be roughly divided into using flash memory and using hard drives as memory for storing digital music data. Two categories. MP3 players using flash memory are relatively light and power-saving, but their storage capacity is small, and the digital music data stored is limited. For example, if the flash memory capacity is 64MB, it can store about one hour of digital music in MP3 format. The user who uses the MP3 player of flash memory wants to go out and carry for a long time (as when carrying out long-distance travel), just may be because of too small memory capacity, makes the number of stored melodies listen to very soon. In order to overcome this problem, users must purchase multiple MP3 players to listen to more different digital music data during long-distance journeys, but this will greatly increase the cost of use. In order to improve the shortcomings of the insufficient storage capacity of the MP3 player using flash memory, the MP3 player using the hard disk drive has emerged at the historic moment. The MP3 player using the hard disk drive has a large storage capacity and can store a large amount of digital music data, but its weight is heavy and It consumes power and has the disadvantage of being easy to break. Therefore how to effectively combine the advantages of these two MP3 players to provide users with better portable music players has become a problem that manufacturers need to work hard for today.

Contents of the invention

The present invention provides a sound player with a detachable storage unit to solve the above problems.

The claims of the present invention disclose a sound playing device, which includes a first module, which includes a first casing, a first connection port installed on the first casing, and a storage unit installed on the first casing. The first casing is coupled to the first connection port and is used for storing digital audio data. The sound playing device also includes a second module, which includes a second casing, a controller installed in the second casing for controlling the operation of the sound playing device, and a flash memory installed in the second casing inside and coupled to the controller for storing digital audio data, a second connection port installed on the second casing and coupled to the controller, detachably connected to the first connection port, a A user interface, coupled to the controller, is used to provide a user to input a signal to the controller to select digital audio data stored in the flash memory of the second module, or communicate with the second module through the first connection port Two connection ports for selecting digital audio data stored in the storage unit of the first module, a decoder for converting digital audio files selected through the user interface into audio signals, and an audio output port for Output the sound signal converted by the decoder.

Description of drawings

Fig. 1 is a schematic diagram of the appearance of the sound playing device of the present invention.

FIG. 2 is a schematic functional block diagram of the sound playing device in FIG. 1 .

simple notation

10 sound playback device 12 first module

14 The first shell 16 The first connection port

18 storage unit 19 power supply unit

20 second module 22 second housing

24 controllers 26 flash memory

28 second port 30 user interface

32 decoders 34 audio output ports

36 monitors 38 memory card slots

40 radio receiver 42 power supply unit

Detailed ways

Please refer to FIG. 1 and FIG. 2 . FIG. 1 is a schematic diagram of the appearance of a sound playing device 10 of the present invention, and FIG. 2 is a schematic functional block diagram of the sound playing device 10 of the present invention. The sound player 10 can be an MP3 music player, the sound player 10 includes a first module 12 and a second module 20, wherein the first module 12 at least includes a first housing 14, a first connection port 16, A storage unit 18 and a power supply unit 19 . The second module 20 at least includes a second housing 22, a controller 24, a flash memory 26, a second connection port 28, a user interface 30, a decoder 32, an audio output port 34, and a display 36 , a memory card slot 38, a radio receiver 40, and a power supply 42.

The first connection port 16 of the first module 12 is installed on the first casing 14; the storage unit 18 is installed in the first casing 14 and coupled to the first connection port 16 for storing digital audio data; the storage unit 18 It can be a hard disk drive, such as a hard disk drive with an IDE interface or a universal serial bus (universal serial bus, USB) interface; the power supply unit 19 is used to provide the power required for the operation of the first module 12, and it can be a battery.

Controller 24 is installed in the second casing 22, is used for controlling the operation of sound player 10; Flash memory (flash memory) 26 can be NAND type flash memory, is installed in the second casing 22 and is coupled to controller 24, uses To store digital sound data; the second connection port 28 is installed on the second housing 22, which can be connected to the first connection port 16 of the first module 12; the user interface 30 is coupled to the controller 24 for providing The user inputs a signal to the controller 24 to select the digital sound data stored in the flash memory 26 of the second module 20, or to select the digital sound data stored in the first module 12 through the first connection port 16 and the second connection port 28. The digital sound data of the unit 18; the decoder 32 is used to convert the digital sound file selected through the user interface 30 into a sound signal, and the decoder 32 can decode more than one digital music file format, such as MP3 Format and Windows Media Audio (Windows MediaAudio, WMA) format etc., it can be an MP3 decoder; Sound output port 34, is used for outputting the sound signal that decoder 32 converts, and it can be an earphone terminal ( earphone jack) or a loudspeaker, so that the user can hear the sound that the sound player 10 is currently playing; the display 36 is used to display the operating status of the sound player 10, such as the title of the currently played music, or the currently selected radio station, or the storage capacity of the battery, etc., it can be a liquid crystal display (liquid crystal display, LCD); the memory card slot 38 is used to read the data of the external memory card; the radio receiver 40 is used to receive Radio signals, for example, are used to receive radio signals from FM and AM stations, and to output corresponding sound signals to the sound output port 34; the power supply unit 42 is used to provide the power required for the operation of the first module 20, It can be a battery or receive power from an external power supply. The power supply unit 19 of the first module 12 can also be used to receive the power from the power supply unit 42 of the second module 20 to provide the power required for the first module 12 to operate.

The feature of the present invention is that the sound player 10 can be divided into two parts (i.e. the first module 12 and the second module 20), and the first module 12 and the second module 20 are connected by the first connection port 16 and the second module. Connecting port 28 is used as the connection of data transmission, and wherein first connecting port 16 and second connecting port 28 can be the connecting ports of universal serial bus (universal serial bus, USB) interface, such as USB 1.0, USB2.0, or USB OTG interface The connection port of the IEEE 1394 serial bus interface, or the connection port of the IDE interface, etc., depends on the design requirements. If the first connection port 16 is a USB interface connection port, and when the storage unit 18 of the first module 12 is a hard disk drive with an IDE interface, the first module 12 can add a USB/IDE interface adapter to carry out the USB interface. Data conversion between interfaces with IDE. In FIG. 1 , the first connection port 16 is a male connector, and the second connection port 28 is a female connector. They can also be connected to each other in other forms of connector structures, and are not limited to the aforementioned connection methods. When the first module 12 and the second module 20 are connected to each other through the first connection port 16 and the second connection port 28, the user can select the digital sound data stored in the flash memory 26 of the second module 20 through the user interface 30 , or through the connection between the first connection port 16 and the second connection port 28 to select the digital sound data stored in the storage unit 18 of the first module 12, so that the digital music data capacity stored in the sound playback device 10 can be determined by Original flash memory 26 memory capacity that can store is expanded to flash memory 26 plus the memory capacity that storage unit 18 can store, and the combination of first module 12 and second module 20 just is similar to the MP3 player of existing hard disk type at this moment, and the second A module 12 is just like an external hard drive, which can be connected to a host computer to download digital music to the storage unit 18 of the first module 12. Once the desired digital music has been stored in the storage unit 18, the first module 12 The host computer can be disconnected and connected to the second module 20 . After the controller 24 of the second module 20 detects the connection between the first connection port 16 and the second connection port 28, the first module 12 can be regarded as a slave device (slave device), and at this moment, the second module 20 The user interface 30 allows the user to select the file of the storage unit 18 of the first module 12 or select the digital sound data stored in the flash memory 26 of the second module 20 through the first connection port 16 and the second connection port 28, and The user can also back up the digital music data stored in the storage unit 18 of the first module 12 to the flash memory 26 . Therefore, if the user wants to go out for a long time to carry the sound player 10 (such as when traveling long distances), the first module 12 can be connected to the second module 20 of the main body of the sound player 10, and a large amount of digital music data can be stored. , to ensure that there is enough music to accompany the user during long-distance travel.

When the first module 12 is removed from the second module 20 of the main body of the audio playback device 10, the controller 24 will detect that the connection between the first connection port 16 and the second connection port 28 is interrupted, so the user interface 30 only Can allow the user to select the digital sound data that is stored in the flash memory 26 of the second module 20, and now the independent application of the second module 20 is just similar to the MP3 player of existing flash memory, and comparatively light and power-saving. The second module 20 can also use the memory card slot 38 to read the data of the external memory card, so as to achieve the function of a card reader. Therefore, the source of digital music data stored in the flash memory 26 of the second module 20 can be downloaded from the storage unit 18 of the first module 12 when the first connection port 16 and the second connection port 28 are connected, or through the memory card slot 38 to read the digital music data of the external memory card. To sum up, if the user does not need to listen to a large amount of digital music data at ordinary times, he can use the second module 20 alone as an MP3 player, so as to achieve the purpose of light weight and power saving.

Compared with existing MP3 players, the sound playback device of the present invention combines the advantages of using flash memory and using hard drives as storage devices for storing digital music data. When users want to use a large amount of digital music When data (such as long-distance travel), the first module and the second module of the sound player can be combined to store a large amount of digital music data; when the user does not have such a large amount of digital music data requirements, only the The second module is used as an MP3 player to achieve the purpose of being light and power-saving.

The above descriptions are only preferred embodiments of the present invention, and all equivalent changes and modifications made according to the claims of the present invention shall fall within the scope of the patent of the present invention.

Claims (10)

1. A sound player with detachable storage unit, comprising: A first module comprising: a first shell; a first connection port installed on the first housing; and a storage unit installed in the first housing and coupled to the first connection port for storing digital audio data; and A second module comprising: a second shell; A controller, installed in the second casing, is used to control the operation of the sound playing device; a flash memory installed in the second casing and coupled to the controller for storing digital audio data; A second connection port, installed on the second housing and coupled to the controller, is detachably connected to the first connection port; A user interface, coupled to the controller, is used to provide a user to input a signal to the controller, wherein when the controller detects that the first connection port is connected to the second connection port, the user interface It can be used to select the digital sound data stored in the flash memory of the second module, or to select the digital sound data stored in the storage unit of the first module through the first connection port and the second connection port, when the control When the device detects that the connection between the first port and the second port is interrupted, the user interface can only allow selection of digital audio data stored in the flash memory of the second module; a decoder for converting digital audio files selected through the user interface into audio signals; and A sound output port is used to output the sound signal converted by the decoder. 2. The sound playing device as claimed in claim 1, wherein the first connection port and the second connection port are USB interfaces, IEEE 1394 serial bus interfaces or IDE interfaces. 3. The sound player as claimed in claim 1, wherein the storage unit of the first module is a hard disk drive. 4. The sound player as claimed in claim 3, wherein the storage unit of the first module is a USB hard disk drive. 5. The sound player as claimed in claim 1, wherein the flash memory of the second module is a NAND flash memory. 6. The sound playing device as claimed in claim 1, wherein the decoder of the second module is an MP3 decoder. 7. The sound player as claimed in claim 1, wherein the sound output port of the second module is an earphone terminal. 8. The sound player as claimed in claim 1, wherein the second module further comprises a display for displaying the operating status of the sound player. 9. The sound player as claimed in claim 1, wherein the second module further comprises a memory card slot for reading data from an external memory card. 10. The sound playing device as claimed in claim 1, wherein the second module further comprises a radio receiver for receiving radio signals, and for outputting corresponding sound signals to the sound output port.

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