JP3094848U - Digital music player - Google Patents

Abstract

(57) [Summary] [Problem] To reproduce digital music without changing the original design of the audio device and the radio, combined with the function of adjusting the frequency of the audio device and the radio, adjusting the frequency width, or reproducing the magnetic tape. And a digital music player capable of reading digital music in different storage devices by a storage device interface. A storage device connector, a storage device interface chip, a digital music decoding unit, an audio signal output unit, and a power supply unit can read digital music data of different storage devices,
A signal is transmitted to an audio device or a radio equipped with a frequency adjustment, a frequency width adjustment, or a magnetic tape reproduction function in a wireless manner, and the audio device and the radio receive and reproduce digital music information.

Description

[Detailed description of the device]

[0001]

[Technical field to which the device belongs]

  The present invention relates to a kind of digital music player, in particular, different storage devices for users. Provides a function that can read the digital music data of Device, radio, frequency adjustment, frequency width adjustment or magnetism In addition to the air tape playback function, the function of receiving and playing digital music data is added. Regarding digital music player.

[0002]

[Prior art]

  FIG. 1 shows the structure of an existing digital music player 1. It is a memory unit Unit 11, digital music playback unit 12, earphone jack 13, and earphones 14, the memory unit 11 stores digital music data, The unit 11 is a flash memory or a memory card (for example, a compact unit). Rush (registered trademark), MD, SD, MMC, SmartMedia (registered trademark), MS card). However, the capacity of the memory unit 11 is limited (flash memory Both memory and memory cards generally use 256MB to 512MB). The user does not regularly update (or replace) the memory unit 11 (memory card). Therefore, it is inconvenient to use. It is convenient for mobile phones currently on the market and A large-capacity data storage device is an MP3 player that uses a USB interface. Is the mainstream, the capacity reaches 1 billion bytes (1 GB), and the USB interface Ace's MP3 player can be applied to various types of information products and is well known Function of MP3 player in memory unit 11 of digital music player 1 If you add more, you can greatly increase the effect of using digital music and keep your users You can free yourself from the hassle of updating data.

[0003]   Furthermore, listening to digital music is not limited to listening at home, and even in the car. I often listen. However, current car audio systems are not designed to play digital music. There is no provision and therefore improvement is required.

[0004]

[Problems to be solved by the device]

  The present invention takes into consideration the drawbacks of the conventional digital music player in use, and improves it. Provide a digital music player. It is a storage device connector, storage device Interface chip, digital music decoding unit, audio signal output unit and And digital power data composed of different power supply units and read from different storage devices It is possible to adjust the frequency, adjust the frequency width, or use a magnetic tape player with a wireless system. It is transmitted to a sound-equipped device, a radio, and has it play digital music.

[0005]   The main purpose of this invention is to provide a kind of digital music player. , Especially users can read digital music data recorded on different digital storage devices. Make it visible, as well as transmit it in the form of radio signals, frequency adjustment, frequency An audio device equipped with a width adjustment or tape playback function, and a radio to receive it To provide a digital music player that allows you to play digital music It

[0006]

[Means for Solving the Problems]

  The invention of claim 1 provides a storage device connector, a storage device, and a digital music player. Existing device interface chip, digital music decoding unit, audio signal output unit Composed of knit and power supply unit,   The storage device connector is a plug to be inserted into the storage device,   The storage device interface chip reads the data recorded in the storage device. ,   The digital music decoding unit reads the digital music data read from the storage device. Data into a music signal that can be played,   Data transmitted by the digital music decoding unit by the audio signal output unit Is modulated and emitted as a radio signal, and the stereo and radio receive and reproduce,   The power supply unit provides the power required by the digital music player,   The data of the storage device composed with the above device and having a high storage capacity can be read and Specially designed to play digital music on an audio device that does not have a digital music playback function. It's supposed to be a digital music player.   The invention of claim 2 provides the digital music player according to claim 1, wherein A digital music player, characterized in that the signal output unit is a frequency adjustment circuit. It is a layer.   The device of claim 3 is the digital music player according to claim 1, wherein Digital music, characterized in that the signal output unit is a frequency width adjustment circuit I am a player.   The invention of claim 4 is the digital music player according to claim 1, wherein Includes an amplifier to increase the gain of the audio signal output by the Tal music decoding unit. It is a digital music player that features   According to a fifth aspect of the present invention, in the digital music player according to the first aspect, a power source is provided. A digital music player, characterized in that the power source of the supply unit is a battery. It's a year.   According to a sixth aspect of the present invention, in the digital music player according to the first aspect, a power source is provided. The supply unit     A power plug that provides the external power required by digital music players,   Converts the input power of the power plug to match the working voltage of the digital music player A digital music player, which is equipped with a power adapter ing.   According to the invention of claim 7, in the digital music player according to claim 1, The signal output unit is replaced with a cassette tape and a drawing conductor, and each of the drawing conductors is It is connected to a cassette tape and a digital music player, , User inserts cassette tape into audio device or radio tape slot And a digital music player sends a digital music signal from a cassette tape to an audio device. , To the digital head of the radio tape slot to play digital music. It is a digital music player characterized by.   The invention of claim 8 is the digital music player according to claim 1, The device connector is used as a slot for inserting a digital memory card. Card is at least CompactFlash (registered trademark) card, MD card , SD card, MMC card, SmartMedia (registered trademark) card, MS car It is a digital music player that is characterized as one of the devices.   According to the invention of claim 9, the digital music player according to claim 1 stores The device connector is a USB interface socket, It is a digital music player.

[0007]

[Embodiment of device]

  As shown in FIGS. 1 and 2, the present invention provides a storage device connector 21, a storage device connector 21, and a storage device connector 21. Interface chip 22, digital music decoding unit 23, audio signal output unit It is composed of a unit 24 and a power supply unit 25.

[0008]   The storage device connector 21 is a connector that is plugged into a storage device, for example, , Memory card socket, USB connector, storage device is USB interface Portable disk, memory card (eg Compact Flash (registered Standard), MD, SD, MMC, SmartMedia (registered trademark), MS card) Be done.

[0009]   The storage device interface chip 22 reads the data recorded in the storage device. Can be taken.

[0010]   The digital music decoding unit 23 uses the digital sound read from the storage device. Converts music data into reproducible music signals.

[0011]   The audio signal output unit 24 is transmitted from the digital music decoding unit 23. The generated data is modulated and sent out as a radio signal, and the audio device and radio are made to receive and line up. This output unit is used as a frequency adjustment or frequency width adjustment firing circuit. sell.

[0012]   The power supply unit 25 supplies the necessary power for the digital music player 2, The power source of the power supply unit 25 may be a battery.

[0013]   Composed of the above-mentioned device, the user can install the digital storage device to the digital music player of the present invention. It can be connected to the storage device connector 21 of layer 2 and has a storage device interface. The source chip 22 reads the digital music data in the digital storage device Digital music decoding unit 23, and the digital music decoding unit 23 After decoding this and modulating it by the audio signal output unit 24 to make it a wireless signal Then, the sound is emitted to the radio, and the digital music is played back.

[0014]   FIG. 3 is a block diagram of a second embodiment of the present invention. Digital music player 2 A high gain is obtained for the audio signal output from the digital music decoding unit 23. For this purpose, an amplifier 26 is added to output the digital music decoding unit 23. The gain of the audio signal is increasing.

[0015]   FIG. 4 is a block diagram of a third embodiment of the present invention. To expand the operating range of the present invention In order to use the audio signal output unit 24 of the digital music player 2 as a cassette tape 27 and extended conductor wire 28, and the extended conductor wire 28 is replaced with cassette tape 27, respectively. Connect to Digital Music Player 2.

[0016]   The user inserts the cassette tape 27 into the audio device or the tape slot of the radio. Then, the digital music player 2 sends the digital music signal to the cassette tape 27. More audio equipment, transmit to the magnetic head of the tape slot of the radio, digital music Play (The digital music player's digital music reading operation method is the first The same as the embodiment, the cassette tape is a well-known technique and is not a feature of the present invention. Therefore, detailed description is omitted. ).

[0017]   Besides, FIG. 5 is a block diagram of a fourth embodiment of the present invention. In order to diversify the acquisition, the power supply unit 25 shall include the following: It That is,   The power plug 251 is used to supply the external power required by the digital music player 2. For example, a plug for household power supply or a plug for an automobile cigarette lighter. The power plug 251 described above,   Power adapter 252, which converts the input power of power plug 251 to digital The power supply adapter 252 that matches the working voltage of the music player 2.

[0018]   With the above equipment, users can use household power supply or automobile power supply. I am sorry.

[0019]

[Effect of device]

  Taken together, the present invention reads digital music data from the storage device interface. In addition to the function to transmit A sound device with a playback function and a function to play digital music on the radio There is. It should be noted that the above embodiments do not limit the scope of implementation of the present invention. Any modification or alteration of details that can be made based on the above are within the claims of the present invention. I shall.

[Brief description of drawings]

FIG. 1 is a block diagram of a known digital music player.

FIG. 2 is a block diagram of a first embodiment of the present invention.

FIG. 3 is a block diagram of a second embodiment of the present invention.

FIG. 4 is a block diagram of a third embodiment of the present invention.

FIG. 5 is a block diagram of a fourth embodiment of the present invention.

[Explanation of symbols]

1 Digital Music Player 11 Memory Unit 12 Digital Music Playback Unit 13 Earphone Jack 14 Earphone 2 Digital Music Player 21 Storage Device Connector 22 Storage Device Interface Chip 23 Digital Music Decoding Unit 24 Audio Signal Output Unit 25 Power Supply Unit 251 Power Plug 252 Power Adapter 26 Amplifier 27 Cassette Tape 28 Stretched Wire

Claims (9)

[Scope of utility model registration request] 1. A digital music player, comprising a storage device connector, a storage device interface chip, a digital music decoding unit, an audio signal output unit and a power supply unit, wherein the storage device connector is a plug inserted into the storage device. The storage device interface chip reads the data recorded in the storage device, the digital music decoding unit converts the digital music data read by the storage device into a reproducible music signal, and the audio signal output unit outputs a digital signal. The data transmitted by the music decoding unit is modulated and emitted as a radio signal to be received and reproduced by a stereo and a radio, and the power supply unit provides the power required by a digital music player, and is composed by the above devices. Storage device with high storage capacity A digital music player, which reads the data of 1. and causes an audio device having no digital music playback function to play digital music. 2. The digital music player according to claim 1, wherein the audio signal output unit is a frequency adjusting circuit. 3. The digital music player according to claim 1, wherein the audio signal output unit is a frequency width adjusting circuit. 4. The digital music player according to claim 1, further comprising an amplifier for increasing a gain of an audio signal output from the digital music decoding unit. 5. The digital music player according to claim 1, wherein the power source of the power supply unit is a battery. 6. The digital music player according to claim 1, wherein the power supply unit converts the input power of the power plug for supplying external power required by the digital music player to the digital music player. A digital music player characterized by having a power adapter adapted to work voltage. 7. The digital music player according to claim 1, wherein the audio signal output unit is replaced with a cassette tape and a drawing conductor, and the drawing conductor is connected to the cassette tape and the digital music player, respectively, and is used by the cassette tape. When the person inserts the cassette tape into the audio device or the tape slot of the radio, the digital music player transmits the digital music signal from the cassette tape to the audio device and the magnetic head of the tape slot of the radio,
A digital music player characterized by playing digital music. 8. The digital music player according to claim 1, wherein the storage device connector is a slot into which a digital memory card is inserted, and the memory card is at least a CompactFlash (registered trademark) card,
A digital music player characterized by being one of an MD card, an SD card, an MMC card, a SmartMedia (registered trademark) card, and an MS card. 9. The digital music player according to claim 1, wherein the storage device connector is a USB interface socket.