KR20020095954A - Portable melody card - Google Patents

Abstract

PURPOSE: Provided is a portable melody card which stores and plays melody at a card as large as a smart card so that it enables users to carry the melody card and plays melody. CONSTITUTION: The portable melody card comprises the parts of: an upper support sheet(10) which forms the upper side of the portable melody card; a circuit board(20) which is placed under the upper support sheet with including functions to store and play melody or voice; and a bottom support sheet(30) which is placed at the lower side of the circuit board to the bottom of the portable melody card. The circuit board consists of a play switch(21) to select the production of melody or voice, a control part to store and produce melody or voice, a memory to store melody or voice, a piezoelectric speaker(26) to produce melody or voice outside and a battery(27) to supply power for the circuit board.

Description

Portable melody card {PORTABLE MELODY CARD}

The present invention relates to a portable melody card, and more particularly, to a portable melody card having a means for storing and outputting a predetermined melody or voice.

In recent years, a card having a device capable of storing and playing a user's voice or a specific melody has been widely used. In particular, it is widely used for greeting cards or souvenir cards that display only simple phrases and pictures, and is also applied to objects such as dolls.

However, in the related art, a greeting card or a celebratory card has a problem in that it is inconvenient to carry and the use thereof is limited. It was also used for one-time use only, not for continuous use.

In addition, in selecting a component (eg, a speaker, a battery, etc.) used for melody reproduction, there is a limit in miniaturizing the product by not using the miniaturized product.

The present invention has been presented to solve the above problems, and an object of the present invention is to provide a portable melody card.

That is, an object of the present invention is to provide a portable melody card that can be carried by adding a melody storage and playback device in a portable card such as a smart card and can be used for various purposes such as listening to music and playing greetings.

In order to achieve the above object, the portable melody card according to the present invention includes a means for storing and outputting a predetermined melody or voice, and is a portable melody card, which is portable, comprising: a top support plate forming an upper surface of the portable melody card; A circuit board having a function of storing and reproducing a melody or voice and disposed below the top support plate; And a bottom support plate which forms a bottom of the portable melody card and is disposed below the circuit board, wherein the circuit board comprises: a playback switch for selecting a melody or audio output; A controller for controlling the storage and output of the melody or voice; Memory for storing melody or voice; Piezoelectric speaker having a melody or voice output to the outside, a frame fixed to a circuit board by a predetermined fixed element, connected to the frame, and a piezoelectric element and a piezoelectric element disposed on the diaphragm to transfer vibration to the diaphragm ; And a battery for supplying power to the circuit board.

Advantages, features and preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is an exploded perspective view of a portable melody card according to the present invention.

2 is a block diagram of a portable melody card circuit according to the present invention;

3A illustrates a first embodiment of a speaker;

3B illustrates a second embodiment of a speaker.

4A illustrates a first embodiment of a battery.

4B illustrates a second embodiment of a battery.

4C illustrates a third embodiment of a battery.

*** Explanation of symbols on the main parts of the drawing ***

10: top support plate 12: regeneration switch hole

14 speaker hole 20 circuit board

21: playback switch 22: control unit

23: memory 24: low pass filter

25: amplifier 26: speaker

27: battery 30: bottom support plate

31 frame 32: diaphragm

33: piezoelectric element 34: damper

35 edge 41 electrolyte layer

42 cathode layer 43 anode layer

44 conductive layer 45 cathode terminal

46: positive terminal 47: adhesive backing

48: thin film protective layer

1 is an exploded perspective view of a portable melody card according to the present invention. Referring to Figure 1, the configuration of the portable melody card according to the present invention, the top support plate 10 to form a top surface of the portable melody card according to the present invention, a circuit board 20 having a function of storing and playing the melody And a bottom support plate 30 forming the bottom of the portable melody card.

The top support plate 10 according to the present invention includes a regeneration switch hole 12 and a speaker hole 14. The regeneration switch hole 12 is for causing the regeneration switch 21 of the circuit board 20 to protrude outward, and the speaker hole 14 is for outputting melody from the speaker 26 of the circuit board 20 to the outside. It is to.

The circuit board 20 according to the present invention includes a regeneration switch 21, a speaker 26, and a battery 27. The regeneration switch 21 is a switch for selecting the output of the stored melody, and the speaker 26 converts an electrical signal into a voice signal and outputs the melody to the outside. The battery 27 also supplies power for the storage and output of the melody.

The portable melody card according to the present invention uses a piezoelectric speaker and an ultra-thin battery or solar cell to achieve miniaturization and thinness to be portable.

The speaker 26 according to the present invention is a piezoelectric speaker capable of wideband reproduction, and is a speaker in which a ceramic element is applied to a diaphragm instead of a conventional coil and a magnet. In this case, since the diaphragm is divided by band, the sound quality is excellent, and there is an advantage that the size and thickness can be reduced. The configuration of the piezoelectric speaker according to the present invention will be described in detail with reference to FIG. 3.

The battery 27 according to the present invention uses an ultra-thin battery or a solar cell as described above.

Ultrathin batteries are open electrochemical cells consisting of an insoluble cathode, an insoluble anode, and an aqueous electrolyte. The electrolyte is disposed between the anode and the cathode, a deliquescent material that keeps the open cell dry, an electroactive soluble material that provides the required ionic conductivity, and a water-soluble polymeric material that has a viscosity that allows the electrolyte to adhere between the anode and the cathode. It includes. Cathodes, anodes and electrolytes are also formed by printing on paper or plastic and are much thinner than conventional mercury batteries and the like. It can also supply more than 2 volts. Therefore, it is possible to supply the voltage required for melody reproduction. The configuration of the ultra-thin battery will be described in detail in the description of FIG. 4.

Solar cells are photovoltaic cells built for the purpose of converting solar energy into electrical energy. The material of the semiconductor is silicon, gallium arsenide, cadmium tellurium, cadmium sulfide, indium phosphorus or a combination of the above materials, but most of the silicon is used. The structure of the solar cell is shown in FIG. 4C.

The upper support plate 10 and the lower support plate 30 according to the present invention support the circuit board 20 and protect it from external impact, and may use an injection molded plastic material.

2 is a block diagram of a portable melody card circuit according to the present invention. Referring to FIG. 2, the portable melody card circuit according to the present invention includes a regeneration switch 21 for selecting an output of a stored melody, a controller 22 for controlling the storage and output of the melody, and a memory 23 for storing the melody. , A low pass filter 24 for removing noise such as a high frequency included in the melody, an amplifier 25 for amplifying the melody having passed through the low pass filter 24 to a predetermined size, and a speaker 26 outputting the melody to the outside. And a battery 27 for supplying power to the circuit board 20.

The controller 22 according to the present invention controls each component and loads and outputs the melody stored in the memory 23 when the regeneration switch 21 is turned on. That is, the melody is loaded to remove noise through the low pass filter 24, amplified through the amplifier 25, and then output to the outside through the speaker 26.

The speaker 26 and the battery 27 according to the present invention use piezoelectric speakers and ultra-thin batteries as described above.

Referring to the operation of the portable melody card according to the present invention according to the operation of each component as follows.

When the regeneration switch 21 according to the present invention is turned ON, the controller 22 loads the melody stored in the memory 23. The loaded melody is removed by noise through the low pass filter 24 and amplified to a predetermined size via the amplifier 25. The amplified melody is output to the outside through the speaker 26. When the regeneration switch 21 is turned OFF, regeneration of the melody is stopped.

The melody according to the present invention is not limited to a simple combination of sounds and music, but includes a greeting or an English conversation phrase. In other words, you can listen to music you want to listen to by storing it in a melody card, or you can save and listen to English conversation phrases. You can also save and play important notes or greetings.

In addition, in storing the melody in the portable melody card according to the present invention, the supplier may store the melody in advance and sell it, or the user may record through a separate recording terminal that can record the melody from the outside. In this case, a connection port for receiving data from the recording terminal is added to the circuit board 20 according to the present invention. In addition, the control unit 22 is provided with a function of converting the melody input from the outside and storing it in the memory 23.

In addition, by adding means for receiving and storing voice and melody from the outside to the melody card, the user may be able to store the melody without a separate terminal. In this case, the circuit board 20 according to the present invention can be implemented by providing an input means such as a microphone.

3A is a diagram illustrating a first embodiment of a speaker, and shows a configuration of a piezoelectric speaker composed of one diaphragm and one piezoelectric element. As shown in FIG. 3A, the configuration of the piezoelectric speaker includes a frame 31 fixed to a predetermined fixed element of the piezoelectric speaker, a diaphragm 32, and a voltage applied from the outside. Piezoelectric element 33 which transmits vibration to 32, damper 34 which connects diaphragm 32 to frame 31, and air is prevented from leaking by the gap between vibration plate 32 and frame 31. Edge 35 for the purpose of operation.

The damper 34 supports the diaphragm 32 so that the diaphragm 32 vibrates linearly. That is, the diaphragm 32 vibrates in a direction substantially perpendicular to the reference plane, and the surface and the reference plane of the diaphragm 32 are kept in parallel with each other.

Also, the position, number and shape of the dampers 34 are not limited to those shown in FIG. 3A. The dampers 34 may be provided in any shape at any number in any position as long as the damper 34 has a function of supporting the diaphragm 32 so that the diaphragm 32 vibrates linearly.

The piezoelectric speaker has an edge 35 to prevent air from leaking through the gap between the diaphragm 32 and the frame 31. When air leaks through the gap between the diaphragm 32 and the frame 31, the sound waves of the reversed phase respectively generated on each side of the diaphragm 32 interfere with each other, and as a result, the sound pressure level decreases. The edge 35 prevents such leakage of air, so that a decrease in sound pressure level in the low frequency range where the characteristic is significantly degraded can be avoided. As a result, the piezoelectric speaker reproduces sound in the lower frequency range than the conventional piezoelectric speaker.

The edge 35 also functions as a support element for supporting the diaphragm 32. The vibration of the diaphragm 32 supports the outer periphery of the diaphragm 32 by the edge 35. When the diaphragm 32 is not supported by the edge 35 but is supported by the damper 34, the diaphragm 32 tends to vibrate excessively in any direction in a particular frequency range. Resonance may occur.

The edge 35 and damper 34 of FIG. 3A are devices for improving the performance of the speaker, and therefore, even if these components are removed, they do not cause a great problem for use as the speaker.

3B is a diagram illustrating a second embodiment of a speaker, and shows a configuration of a piezoelectric speaker composed of a plurality of diaphragms and one piezoelectric element. As shown in FIG. 3B, the configuration of the piezoelectric speaker includes an outer frame 31a, an inner frame 31b, a plurality of diaphragms 32a to 32d, and a piezoelectric element 33. As shown in FIG.

Each diaphragm 32a-32d is connected to the inner frame 31b via the damper 34, and the inner frame 31b is connected to the outer frame through the damper 34. As shown in FIG.

In addition, the edge 35b for preventing air from leaking through the gap between the diaphragms 32a to 32d and the inner frame 31b, and the air through the gap between the inner frame 31b and the outer frame 31a. An edge 35a is provided to prevent leakage.

The piezoelectric speaker may be implemented in various forms in addition to the embodiments shown in FIGS. 3A and 3B. For example, it may be implemented by a plurality of diaphragms and a plurality of piezoelectric elements.

4A is a diagram illustrating a first embodiment of a battery, and shows a configuration of an ultra-thin battery composed of three layers. As shown in FIG. 4A, an ultra-thin battery is an open electrochemical cell consisting of three layers of an aqueous electrolyte layer 41, an insoluble cathode layer 42, and an insoluble anode layer 43.

Oxidation occurs in the cathode layer 42, and reduction occurs in the anode layer 43. The aqueous electrolyte layer 41 comprises a cathode layer 42 and an anode layer 43 on a deliquescent (or hygroscopic) material that keeps the open cell dry, an electroactive soluble material to obtain the required ionic conductivity, and the electrolyte 41. Polymer material having a viscosity for bonding).

The aqueous electrolyte layer 41 generally includes a porous insoluble material such as a filter paper, a plastic film, a cellulose film, a cloth, a nonwoven fabric (for example, a cotton fabric), and the like, and the porous material is a deliquescent material or an electric material. Absorb an aqueous solution comprising three components: the active soluble material and the water soluble polymeric material.

A deliquescent substance keeps a cell always moist by hygroscopicity. The humidity of an open cell changes with the content and concentration of moisture by the deliquescent substance. Suitable deliquescent substances include calcium chloride, calcium bromide, potassium diphosphate, potassium acetate and combinations thereof.

The electroactive soluble material is determined by the material forming the cathode layer 42 and the anode layer 43. Preferably, a primary cell contains zinc fluoride, such as zinc chloride and zinc bromide, and a secondary cell contains potassium hydroxide, sulfuric acid, etc.

The water-soluble polymer material serves as an adhesive for bonding the electrolyte layer 41, the cathode layer 42, and the anode layer 43, and polyvinyl alcohol, polyacrylamide, polyacrylic acid, polyvinylpyrrolidone, polyethylene oxide, wood starch agar, agarose, starch, ethyl cellulose hydroxide and copolymers thereof.

The negative electrode layer 42 and the positive electrode layer 43 include a material in which a suitable active insoluble powder is mixed together with an aqueous solution such as the above solution including deliquescent material, electroactive soluble material and water soluble high molecular material. The cathode layer 42 and the anode layer 43 can comprise manganese dioxide / zinc, silver oxide / zinc, cadmium / nickel oxide, and iron / nickel oxide. Manganese dioxide and silver oxide are also optionally mixed with conductive carbon powder.

The ultra-thin battery consisting of three layers is flexible and thin enough to be configured in the range of 0.3 mm to 1.5 mm. Therefore, it is possible to apply to the portable melody card according to the present invention.

4B illustrates a second embodiment of a battery, further comprising one or two conductive layers 44, a negative terminal 45, a positive terminal 46, an adhesive backing 47, and a thin film protective layer 48. The configuration of the ultra-thin battery is shown.

The ultra-thin battery shown in FIG. 4B also includes an electrolyte layer 41, a cathode layer 42, and an anode layer 43 constituting the basic cell shown in FIG. 4A.

One or two conductive layers 44 may be provided to improve electrical conductivity of the cathode layer 42 and the anode layer 43. As the conductive layer 44, graphite paper, carbon cloth, or the like is used.

The negative electrode terminal 45 and the positive electrode terminal 46 are in electrical contact with each pole layer and each conductive layer. That is, the negative electrode terminal 45 is in electrical contact with the negative electrode layer 42 and the conductive layer 44, and the positive electrode terminal 46 is in electrical contact with the positive electrode layer 43 and the conductive layer 44. When one conductive layer 44 is provided, each terminal is in electrical contact with one conductive layer 44. As the negative electrode terminal 45 and the positive electrode terminal 46, a metal such as graphite or iron, nickel, titanium, copper, stainless steel and mixtures thereof is used.

The adhesive backing 47 serves to attach the cells, and the thin film protective layer 48 physically protects each other layer.

4C is a diagram illustrating a third embodiment of a battery, showing the configuration of a silicon solar cell.

As described above, the semiconductor material of the solar cell uses silicon, gallium arsenide, cadmium tellurium, cadmium sulfide, indium phosphorus or a combination thereof, but most of them use silicon.

As shown in Fig. 4C, in the case of the silicon ocean cell, the p-n junction is formed by the diffusion method, but the diffusion depth is configured to be about 3 mu m so that most of the irradiated photons reach the junction.

The solar cell is about 1 mm thick, as shown in FIG. 4C. Therefore, it is possible to apply to the portable melody card according to the present invention.

As described above, the present invention has a remarkable effect that the user can carry the melody card and play the melody by storing and playing the melody in a card having the size of a smart card.

Therefore, as a melody stored in the portable melody card according to the present invention, it can be variously selected, such as music, greetings or English conversation phrases can be broadened the application range.

While the preferred embodiments of the present invention have been described using specific terms, such descriptions are for illustrative purposes only, and it is understood that various changes and modifications may be made without departing from the spirit and scope of the following claims. Should be done.

Claims (4)

A portable melody card having a means for storing and outputting a predetermined melody or voice, the portable melody card comprising: A top support plate forming a top surface of the portable melody card; A circuit board having a function of storing and reproducing the melody or voice and disposed below the upper support plate; And A bottom support plate is formed on the bottom of the portable melody card and is disposed below the circuit board; The circuit board, A playback switch for selecting an output of the melody or voice; A controller for controlling the storage and output of the melody or voice; A memory for storing the melody or voice; A piezoelectric element that outputs the melody or voice to the outside and is fixed to the circuit board by a predetermined fixed element, a vibration plate connected to the frame, and applied to a ceramic material and disposed on the vibration plate to transmit vibration to the vibration plate Piezoelectric speaker having a; And And a battery for supplying power to the circuit board. The method of claim 1 wherein the portable melody card, A low pass filter for removing noise included in the melody or voice; And And a amplifier for amplifying the melody or the voice that has passed through the low pass filter to a predetermined size. The method of claim 1 wherein the battery, Insoluble cathode; Insoluble anode; And An open electrochemical cell comprising an aqueous electrolyte disposed between the cathode and the anode, The electrolyte, A deliquescent material that keeps the cell dry, an electroactive soluble material that provides a predetermined ionic conductivity, and a water-soluble polymer material having a viscosity for adhering the electrolyte between the positive electrode and the negative electrode, Portable melody card, characterized in that the negative electrode, the positive electrode and the electrolyte is formed by printing on paper or plastic. The method of claim 1 wherein the battery, Portable melody card, characterized in that the solar cell converts light energy into electrical energy.