KR20010011025A - Memory player for cassette deck - Google Patents

Abstract

PURPOSE: A memory player for a cassette deck is provided to operate a digital audio player as a cassette tape is played back or recorded by equally producing the digital audio player as the cassette tape and transmitting playback output signal to the cassette deck through a head. CONSTITUTION: Downloaded data are inputted from a PC(5) to a data buffer(11). The data is transmitted to a cassette memory device(20) through connectors(15,21) after amplifying. A data control unit(12) controls the download of the data buffer(11) and displays the downloaded state on a display unit(13). A microcomputer(26) controls to read the file according to the user's request. The file is read by output signals(SEN1,SEN2) of supplying/winding reel sensors. A decoder(23) restores the read file of compressed type. The restored digital signal is converted to an analog signal by a D/A converter(24). The signal is magnetically converted to transmit into a head by a head unit(25) after filtering and amplifying. The microcomputer(26) displays a title of the present output song on the display unit(27).

Description

Memory player for cassette deck {MEMORY PLAYER FOR CASSETTE DECK}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a technique for playing or recording digital audio files in a cassette tape player, and more particularly, to playing digital audio files such as MP3 files using a digital audio player having the same external structure as a cassette tape mounted on a conventional audio deck. And a memory player for a cassette deck suitable for recording or recording.

Conventionally, when a user wants to listen to a digital audio file such as an MP3 file, the PC downloads and plays the file from a server using a communication network, or downloads the file to a specific memory card (eg, MMC). MP3 player).

For reference, the MP3 player utilizes audio data compression coding technology corresponding to MPEG1 Layer3, and is a new concept of portable digital that can easily download and play desired music on a computer communication network without a tape or compact disc (CD). Audio equipment. In particular, since this product stores music files in the form of MP3 files, it has almost no breakdown, good sound quality, and is small and light, so it is very active enough to be worn even when exercising.

As described above, in the conventional digital audio player, only a function of reproducing a digital audio file downloaded to a specific memory is performed solely, and a linkage operation with other devices is impossible, resulting in incompatibility.

Accordingly, an object of the present invention is to produce a digital audio player having the same external structure as a cassette tape mounted on a conventional audio deck, and to transmit a reproduction output signal to the cassette deck through the head, and through the connector on one side. The present invention provides a memory player for a cassette deck that is capable of operating a digital audio player, such as by playing or recording a cassette tape, by being connected to a main control device.

1 is a schematic view of appearance of a memory player for a cassette deck according to the present invention;

Figure 2 is an exemplary block diagram of a memory player for a cassette deck of the present invention.

*** Description of the symbols for the main parts of the drawings ***

1: Memory Player 2,13,27: Display

3: head 4,15,21 connector

5: pc 10: master device

11: data buffer unit 12: data control unit

14,29: power supply unit 20: cassette memory device

22: memory 23: decoder

24: D / A converter 25: Head part

26: microcomputer 28: power switch unit

1 is a schematic diagram of a cassette deck memory player according to an embodiment of the present invention, which has the same size and shape as a typical audio cassette tape, has the same mechanism structure, and exhibits a recording / playback function using a memory. By manufacturing the memory player 1, install a power switch so that the power of the memory player 1 is turned on / off by the vertical movement of the head 3 installed on the cassette deck when the play button is pressed on the cassette deck. In addition, a parallel connector 4 is installed on one side of the memory player 1 so that an internal main controller can download data from an external device such as PC.

FIG. 2 is a block diagram illustrating an embodiment of a cassette deck memory player for achieving the object of the present invention. As shown in FIG. 2, digital music files such as MP3 from the PC 5 are stored in the cassette memory device 20. As shown in FIG. A master device (10) which serves as an adapter necessary to perform; The cassette memory device 20 is configured to download a file such as MP3 supplied from the PC 5 through the master device 10 to the internal memory, and to reproduce the file through the head after reproducing the file according to a user's request.

The master device (10) includes a data buffer unit (11) for amplifying the data downloaded from the PC (5) to the appropriate level through the connector (4); A data control unit 12 for controlling data download to the data buffer unit 11; A display unit 13 for displaying a data download state under the control of the data control unit 12; A power supply unit 14 for supplying power to each part of the master device 10 and supplying charging power to the charging battery of the cassette memory device 20; The cassette memory device 20 includes a connector 15 for supplying data and power.

In addition, the cassette memory device 20 includes a memory unit 22 for receiving and storing the downloaded music file through the connector 15 and the connector 21; A decoder (23) for restoring the compressed music file read out from the memory section (22) to its original form; A D / A converter (24) for converting the digital signal recovered by the decoder (23) into an analog signal; A head unit 25 for magnetically converting the analog signal output from the D / A converter 24 to be transferred to the head of the cassette deck; The microcomputer 26 which receives the output signals SEN1 and SEN2 of the supply reel sensor and the reel reel sensor and controls the operations of the memory unit 22, the decoder 23 and the D / A converter 24. Wow; A display unit 27 displaying the name of a song under the control of the microcomputer 26; A power switch unit 28 turned on / off by the vertical movement of the head 3; The power switch unit 28, which is turned on by the power switch unit 28 and supplies power to each part of the cassette memory device 20, will be described in detail with reference to the operation of the present invention.

The cassette deck memory player 1 according to the present invention not only has the same shape as that of a conventional audio cassette tape in appearance, but also has the same mechanism structure as in FIG. However, unlike the conventional cassette tape, the memory player 1 downloads or reproduces digital music files such as MP3 using a memory element as a recording medium, or outputs them to the outside through the head 3.

Further, in order to download data from an external control device such as PC 5 while the memory player 1 is mounted on the deck, or to perform a playback operation according to its control command, the memory player 1 Connector 4 was installed at one end of the cable).

Hereinafter, the internal operation of the memory player 1 will be described in detail with reference to FIG. 2.

Data such as MP3 files downloaded from PC 5 are inputted to the data buffer unit 11 through the connector 4 of the master device 10 and amplified to an appropriate level, and then connected through the connectors 15 and 21. It is delivered to the cassette memory device 20.

In this case, the data controller 12 controls the data download to the data buffer unit 11 and displays the download state on the display unit 13. In addition, the power supply unit 14 supplies the power required inside the master device 10 and, on the other hand, also supplies the battery power for charging the cassette memory device 20.

On the other hand, the power switch unit 28 is turned on and off by the vertical movement of the head 3 according to the user's button operation, and the power supply unit 29 is driven by turning on the power switch unit 28 so that the cassette memory device Power is supplied to each part of 20.

In this state, data input to the cassette memory device 20 through the above path is finally downloaded to the memory unit 22, which can be implemented as a nonvolatile or volatile memory.

In this state, the microcomputer 26 controls to read the corresponding file (song) among a plurality of MP3 files stored in the memory unit 22 according to a user's request. The file is read out based on the output signals SEN1 and SEN2, and the compressed music file thus read out is restored to the original data form by the decoder 23.

The reconstructed digital signal is converted into an analog signal through the D / A converter 24, additionally filtered and amplified, and then magnetically transferred to the cassette deck head by the head unit 25. Is converted.

At this time, the microcomputer 26 displays the name (song name) of the song currently output on the display unit 27.

As a result, all the usual cassette deck players can be used as digital audio players by the above process.

As described in detail above, the present invention provides a digital audio player having the same external structure as a cassette tape mounted on a conventional audio deck, and transmits a reproduction output signal to the cassette deck through a head, and through a connector on one side. By connecting to a main control device such as PC, it is possible to operate a digital audio player as if playing or recording a cassette tape, thereby providing an excellent and low-cost memory player.

Claims (3)

A memory player having the same size and shape as a general audio cassette tape and downloading data from an external device, the memory player comprising: an adapter for processing a music file output from the external device to be suitable for downloading to a cassette memory device to be described later; A cassette memory device which downloads a music file supplied through the adapter into an internal memory and reproduces the file according to a user's request; And a signal transmission head for transmitting a signal reproduced and output from the cassette memory device to the outside. 2. The apparatus of claim 1, wherein the adapter comprises: a first connector for connection with the external device and a second connector for connection with a cassette memory device; A data buffer unit configured to amplify the data downloaded through the first connector to an appropriate level; And a data control unit for controlling data download to the data buffer unit. The cassette memory device of claim 1, further comprising: a memory unit for finally storing a downloaded music file; A decoder and a D / A converter for restoring the compressed music file read out from the memory to its original form and outputting the same to the head; A control device which receives the output signals of the supply reel sensor and the reel reel sensor, controls the restoration operation of the music file and displays the name of the song; The cassette deck memory player, characterized in that it comprises a power switch and a power supply for controlling the power supply according to the vertical movement of the head.