JP2002351480A - Cassette type reproducing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a multifunction type cassette that does not require exchange of battery or recharging of it, in a cassette reproducing device in which music data stored in a memory card are reproduced only by mounting a conventional cassette tape deck. SOLUTION: The device has a rotating member which incorporates permanent magnets that rotate by engaging with a tape reel rotating shaft of an external cassette type deck and an electric power generator which opposes the rotating member and is formed by electromagnetic induction coils arranged on an electric circuit substrate. Electric power obtained by the generator is supplied to a reproducing circuit and a cassette type reproducing device that does not require an internal battery can be obtained.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a multifunctional music compact cassette (hereinafter simply referred to as "cassette") in which a magnetic head provided on the cassette is brought into contact with a magnetic head of an external cassette tape deck. The present invention relates to a cassette type reproducing apparatus capable of reproducing music stored in a memory or a memory card stored in a type cassette using an external cassette tape deck.

[0002]

2. Description of the Related Art The outer shape of a multifunctional cassette housing of this type is configured to conform to the standard of a cassette tape used for a cassette tape deck. The multifunctional cassette is configured so that a standardized memory card can be inserted into and removed from a socket provided in the multifunctional cassette.
Therefore, music recorded on the memory card or the like can be reproduced only by inserting the multifunctional cassette into a tape cassette mounting portion such as a car stereo or a portable cassette tape recorder. Hereinafter, description will be made with reference to a block diagram of FIG. 5 showing a configuration of a multifunctional cassette in a cassette type reproducing apparatus using a conventional multifunctional cassette.

In FIG. 5, a memory card 1 mounted on an electric circuit board 2 inside a multifunctional cassette stores digital music data written on an optical disk or digital music distributed by communication using a telephone line. Data is written in a state of being compressed by a compression method such as MP3 by a personal computer or the like. Digital data compressed and recorded on the memory card 1 is decoded by the decoding circuit 3 of the electric circuit board 2, expanded, and demodulated into digital music data. The digital music data is converted into an analog audio signal by the digital / analog conversion circuit 4. The analog audio signal is sent to the magnetic head 6 by the coupling circuit 5.

When the multifunctional cassette is mounted on an external cassette tape deck, the magnetic head 6 contacts the audio head 14 of the external cassette tape deck,
The analog audio signal is output to the outside through the audio head 14. The digital audio data demodulated by the decoding circuit 3 may be temporarily stored in the internal memory 28.

Normally, the memory card 1 generally stores a plurality of music pieces, and in a normal use state, a user issues a command for a request for music transfer or music return. These commands are sent to the control circuit 27 from, for example, the external controller 7 connected by a cable or the like. Alternatively, the operation signal sent from the remote control transmitter may be received by the signal receiver 29 and sent to the control circuit 27.

For example, in a cassette tape deck for a car audio or the like, a cigarette lighter socket 16 is provided.
Power for operating these circuits is supplied to the power supply circuit 8 by a power supply cable inserted through a cassette insertion opening that is open from the front.

However, in the case of using a cassette reproducing apparatus of a type in which an inserted tape cassette is closed with a lid, such as a general stationary or portable cassette tape recorder, power is supplied by a power cord. Can not. Therefore, as shown in FIG. 6, a multifunctional cassette which can be used for various cassette tape recorders is used by supplying power from a rechargeable battery 9 incorporated in the multifunctional cassette. There were many.

[0008]

However, since the conventional cassette type regenerator uses a rechargeable battery, the currently marketed type regenerator has a power that is charged by regeneration for at most about 8 hours. Consumes. Therefore, when the power charged in the battery is exhausted, it is necessary to stop the reproduction once, replace the battery, or recharge the battery. For this reason, there is a problem that the reproduction has to be interrupted and a battery replacement operation is required. SUMMARY OF THE INVENTION It is an object of the present invention to provide a cassette type reproducing apparatus using a multifunctional cassette which does not require interruption of reproduction due to battery exhaustion or battery replacement work.

[0009]

According to the present invention, there is provided a cassette type reproducing apparatus comprising: a data input means for externally inputting digital data obtained by compressing audio data; expanding the input digital data to obtain analog data of the audio data; A magnetic head unit for transmitting the analog data to an external cassette tape deck reading unit; a data input unit; a demodulation unit; and a magnetic head unit. A cassette-type casing which is held in contact with the reading means of the cassette tape deck, and a power generating means for generating electric power by a rotational driving force for tape traveling transmitted from an external cassette tape deck to the cassette-type casing. It is characterized by having.

According to this configuration, a memory or a memory card having music data or the like as content is mounted in an apparatus having a cassette outer shape to be inserted into a cassette tape deck. In the cassette type device, a generator that generates electric power by using the rotational driving force of the cassette tape deck works as a power source. Therefore, the reproduction can be performed by driving the electric circuit for reproduction stored in the cassette without mounting a battery in the cassette or supplying electric power from outside. As a result, music recorded on a memory card or the like can be reproduced even with a stationary or portable cassette tape recorder. According to this cassette type reproducing apparatus, there is no need to interrupt the reproduction due to the consumption of the battery or replace the battery.

A cassette type reproducing apparatus according to another aspect of the present invention is a data reproducing device for externally inputting digital data obtained by compressing audio data, a storing device for storing the digital data, and a storing device for storing the digital data. Demodulating means for expanding the digital data and demodulating it into analog data of audio data, a magnetic head unit for transmitting the analog data to reading means of an external cassette tape deck,
A cassette-type housing that houses the data input unit, the storage unit, the demodulation unit, and the magnetic head unit, and holds the magnetic head unit in contact with a reading unit of the external cassette tape deck; A driven unit that captures a rotational driving force for tape traveling transmitted from an external cassette tape deck to a cassette type housing, a power generating unit that generates power by the captured rotational driving force, and power generated by the power generating unit And a control unit for controlling the demodulation unit and the driven unit with the controlled power.

According to this configuration, the cassette for reproducing music data recorded on the memory or the memory card has the power generating means for generating power by using the rotational driving force of the cassette tape deck. Therefore, the reproduction can be performed by driving the reproduction electric circuit stored in the cassette without mounting a battery in the cassette or supplying power from the outside. As a result, there is no need to interrupt playback due to battery exhaustion or replace the battery, and a simple cassette-type playback device that can play music recorded on a memory card, etc., even with a stationary or portable cassette tape recorder. Obtainable.

In the cassette type reproducing apparatus having the above structure,
The control unit has a detecting unit for detecting a fast-forward operation or a rewinding operation of the external cassette tape deck, and controls forward and repeat playback of music based on the operation detected by the detecting unit. preferable.
As a result, the music can be easily fast-forwarded or rewound by a normal operation of the external cassette tape deck without using another command device such as an external remote controller.

In the cassette type reproducing apparatus having the above structure,
It is preferable that the demodulation means transmits control data at that time as blank signal in terms of content as the end signal of the music tune, and controls the advance of the music tune and the repeat reproduction. Thus, the end of the song can be detected on the external cassette tape deck side, and the beginning of the next song or the song currently being reproduced can be easily located by normal operation of the external cassette tape deck. .

[0015]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a multifunctional cassette suitable for a cassette type reproducing apparatus according to the present invention will be described below with reference to the accompanying drawings.

Embodiment 1 FIG. 1 is a perspective view of a multifunctional cassette according to a first embodiment of the present invention, and FIG. 2 is a perspective view of a rotating member 12 constituting a power generation unit of the multifunctional cassette according to the first embodiment. FIG. 3 is a perspective view and FIG. 3 is a block diagram illustrating a configuration of the multifunctional cassette according to the first embodiment. In FIG. 1, a housing 10 of the multifunctional cassette according to the first embodiment is provided with a window for inserting a memory card 1 on which music data and the like are recorded. Is provided. A magnetic head 6 is provided on the front surface of the housing 10 so as to be in direct contact with the audio head of the cassette tape deck when it is loaded on an external cassette tape deck (not shown). Further, the housing 10 has two rotating members 12 that rotate in connection with the tape reel shaft of the cassette tape deck,
13, and an electric circuit board 2 on which a signal processing circuit and the like are mounted
Is stored.

As shown in FIG. 2, the rotating members 12, 1
In FIG. 3, a permanent magnet 11 in which a plurality of magnets are integrated so that adjacent polarities are different is arranged around a hole portion fitted to a tape reel shaft of an external cassette tape deck (not shown). Further, the rotating member 12 and the rotating member 13 are connected by an idler gear 15 and are configured to rotate in conjunction with each other. Thus, when one of the rotating members 12 rotates in the operation of reproducing, fast-forwarding, or rewinding the external cassette tape deck, the other rotating member 13 also rotates in conjunction therewith.

The electric circuit board 2 includes a rotating member 1
Electromagnetic induction coils 17 and 18 arranged in a ring shape at positions opposed to 2 and 13 and electric circuits such as a control circuit for performing signal processing and controlling each unit are mounted.

As shown in FIG. 3, the electric circuit board 2 includes
A decoding circuit 3 for demodulating digital data recorded on the memory card 1 into digital music data, a digital / analog conversion circuit 4 for converting digital music data into an analog audio signal, and coupling for sending an analog audio signal to the magnetic head 6 The circuit 5 is mounted. Further, the electric circuit board 2 is provided with an internal memory 28 for storing demodulated digital audio data and control data and the like, and a control circuit 27 for controlling the operation of the power generation unit and the reproduction circuit of the multifunctional cassette.

The magnetic head 6 is brought into contact with the audio head 14 of the external cassette tape deck by mounting the thus constructed multifunctional cassette housing 10 of the first embodiment on an external cassette tape deck (not shown). And
The analog audio signal is output to the outside through the audio head 14.

For example, a case where a reproducing operation is performed on a cassette tape deck of a car stereo will be described. When the multifunctional cassette according to the first embodiment is inserted into a cassette tape deck of a car stereo and the cassette tape deck is set in a reproducing state, the rotating member 12 fitted to the tape reel shaft of the cassette tape deck is rotated right by the rotation of the reel motor. It rotates in the rotation direction (the direction of arrow a in FIG. 1). At the same time, the rotating member 13 on the subordinate side also starts rotating clockwise by the idler gear 15. A permanent magnet 11 is attached to these rotating members 12, 13. The permanent magnet 11 rotates in opposition to electromagnetic coils 17, 18 disposed on the electric circuit board 2. Electromotive force is generated at 17,18.

That is, the rotating member 12 and the electromagnetic coil 17,
The rotating members 13 and the electromagnetic coil 18 constitute generators 19 and 20 shown in FIG. As described above, in the regeneration operation, power is generated by both the generators 19 and 20. By rectifying the generated power by the power supply rectifier circuit 21 on the electric circuit board 2 and supplying it as drive power for each electric circuit such as a control circuit for performing signal processing and control of each unit,
Music data is reproduced.

As described above, the multifunctional cassette according to the first embodiment uses the electric power required for the operation of the electric circuit mounted in 19 and 20. Therefore, it is not necessary to supply power from an external power supply by a cable as in the conventional multifunctional cassette, or to mount a rechargeable battery in the cassette. As a result, even in a portable cassette tape recorder, it is possible to provide a cassette type reproducing apparatus which does not cause interruption of reproduction due to replacement due to battery exhaustion or recharging.

Next, when the user operates the fast-forward button of the cassette tape deck to move to the next song, the reel motor starts to rotate at a higher speed than during reproduction. This allows
The electromotive force of the generators 19 and 20 increases, and the power generation amount increases. The control circuit 27 detects this change in the amount of power generation, thereby recognizing that a music feed command has been received from the user. Next, an operation for canceling the operation of feeding the next music piece on the cassette tape deck side will be described. At this time, the control circuit 27 instructs the decoding circuit 3 to send blank data for a predetermined time as control data for detecting the end of the music to the audio head 14 of the cassette tape deck through the magnetic head 6. Further, following the blank data, the next music data is transmitted. Thus, after the music feed operation of the cassette tape deck is released, the next music is reproduced.

When the user operates the repeat playback button on the cassette tape deck to play back the currently reproduced music from the beginning again (ie, repeat playback), the reel motor starts a rewinding operation. Thereby, the rotating member 13 of FIG. 1 fitted to the tape reel shaft of the cassette tape deck rotates counterclockwise (the direction of arrow b in FIG. 1).
To rotate. At the same time, the rotating member 12 on the subordinate side also starts to rotate leftward by the idler gear 15. At this time, since the rotating direction of the rotating members 12 and 13 is opposite to the direction of reproduction or fast-forward, the polarity of the electromotive force of each of the generators 19 and 20 is opposite. The control circuit 27 detects the change in the polarity of the electromotive force, thereby recognizing that a command to return the music has been received from the user. In order to cancel the rewinding operation on the cassette tape deck side, the control circuit 27 instructs the decoding circuit 3 to instruct the audio head 14 of the cassette tape deck through the magnetic head 6 as control data for detecting the end of music for a predetermined time. Send blank data. Further, following the blank data, the music data from the beginning of the reproduced music is transmitted. Thus, after the rewinding operation of the cassette tape deck is released, the music that has been reproduced is reproduced from the beginning.

As described above, by detecting the magnitude of the amount of power generated by the generator and the change in polarity, and transmitting the music data to the audio head of the cassette tape deck, there is no need to transmit an operation signal from the outside to the multifunctional cassette. By simply operating the operation button of the cassette tape recorder in which the cassette type housing is mounted, it is possible to perform fast-forwarding, repeat reproduction, and the like.

Embodiment 2 FIG. 4 is a transparent perspective view of a multifunctional cassette according to Embodiment 2 of the present invention. The multifunctional cassette of the second embodiment is different from that of the first embodiment only in the configuration of the generator. Therefore, the same parts as those in the first embodiment are denoted by the same reference numerals, and duplicate description will be omitted. In FIG. 4, in the multifunctional cassette according to the second embodiment, the generator 25,
The rotational driving force for driving the motor 26 is transmitted to the rotating shafts of the power generation motors 25 and 26 via the idle gears 23 and 24 by the drive belt 22 which is a dummy tape. When the multifunctional cassette of the second embodiment is mounted on an external cassette tape deck (not shown), the driving belt 22
Are arranged in the same manner as a normal cassette tape so as to contact the capstan roller of the cassette tape deck. That is, the rotation driving of the capstan motor is transmitted to the power generation motors 25 and 26 via the drive belt 22 and the idle gears 23 and 24.

In the cassette tape deck, a reel motor is used for rotational drive for fast-forwarding and rewinding of a magnetic tape, and the rotation state varies according to a variation in load.
Therefore, when the control circuit 27 of FIG. 3 determines a user's operation command based on the amount of power generation due to the rotation of the reel motor, an erroneous determination is made due to a change in the amount of power generation due to a temporal change of the rotating mechanism or other load fluctuation. There is a risk of doing.
However, in the tape cassette according to the second embodiment, since the generator is driven by using the rotational driving force of the capstan motor, which has little fluctuation due to the load, it is possible to accurately detect the rotation state based on the amount of power generated by the generator. it can. As a result, it is possible to provide a cassette type reproducing apparatus in which the reproducing operation by the control circuit can be performed more accurately than in the first embodiment.

[0029]

As described above in detail in the embodiments,
The cassette type reproducing apparatus of the present invention having the memory card mounted therein has a built-in generator for generating electric power by using the driving force of the cassette tape deck in the cassette. Therefore, content such as music data recorded on a memory card can be reproduced anytime and anywhere simply by mounting the device on a general-purpose cassette tape recorder. Since this device does not use a battery, there is no need to interrupt reproduction due to battery exhaustion or to replace the battery. In addition, a change in the amount of power generated by the generator or a change in the polarity can perform a reproducing operation based on a user's operation command from the operation button of the cassette tape deck. As a result, the user can execute a desired reproduction operation only by pressing an operation button of a normal cassette tape recorder without sending an operation command using a remote controller or the like.

[Brief description of the drawings]

FIG. 1 is a transparent perspective view of a multifunctional cassette in a cassette type regenerator according to a first embodiment of the present invention.

FIG. 2 is a perspective view showing a configuration of a rotating member in the multifunctional cassette according to the first embodiment of the present invention.

FIG. 3 is a block diagram illustrating a configuration of a multifunctional cassette according to the first embodiment of the present invention.

FIG. 4 is a perspective view of a multifunctional cassette according to a second embodiment of the present invention.

FIG. 5 is a block diagram showing a configuration of a multifunctional cassette in a conventional cassette type reproducing machine.

FIG. 6 is a block diagram showing a configuration of another conventional multifunctional cassette.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Memory card 2 Electric circuit board 3 Decoding circuit 4 Digital / analog circuit 5 Coupling circuit 6 Magnetic head 10 Housing 11 Permanent magnet 12, 13 Rotating member 14 Audio head 15 Idle 16 Memory card socket 17, 18 Electromagnetic induction coil 19, Reference Signs List 20 generator 21 power supply rectifier circuit 22 drive belt 23, 24 idle gear 25, 26 generator motor 27 control circuit 28 internal memory

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) H02K 21/24 G10L 9/18 H

Claims (7)

[Claims] A data input unit for externally inputting digital data obtained by compressing audio data; a demodulating unit for expanding the input digital data and demodulating the digital data into analog data of audio data; A magnetic head unit for transmitting to a tape deck reading unit, the data input unit, the demodulation unit, and the magnetic head unit are housed, and the magnetic head unit is held in contact with the external cassette tape deck reading unit. 1. A cassette type reproducing apparatus, comprising: a cassette type casing that generates power; and a power generation unit that generates electric power by a rotational driving force for running a tape transmitted from an external cassette tape deck to the cassette type casing. 2. Data input means for externally inputting digital data obtained by compressing audio data, storage means for storing the compressed digital data, and audio data obtained by expanding the digital data stored in the storage means. A demodulating unit for demodulating the analog data into a magnetic head unit for transmitting the analog data to an external cassette tape deck reading unit; housing the data input unit, the storage unit, the demodulating unit, and the magnetic head unit; And a cassette-type housing for holding the magnetic head portion in contact with the reading means of the external cassette tape deck, and a rotational driving force for tape traveling transmitted from the external cassette tape deck to the cassette-type housing A driven part that takes in the electric power, and generates electric power by the rotational driving force that is taken in by the driven part. Power generation unit, and controls the power which the power generation unit has occurred, a cassette type playback apparatus having a control unit for controlling said demodulating means and the driven parts by the controlled power. 3. The cassette type reproducing apparatus according to claim 2, wherein the power generation unit generates electric power by a rotational driving force of a reel motor of the external cassette tape deck. 4. The electric power generating unit according to claim 2, wherein the power generating unit generates electric power by taking in a rotational driving force of a capstan motor of the external cassette tape deck through a dummy tape.
A cassette-type playback device according to claim 1. 5. The control section has a detecting means for detecting fast-forward and rewind operations of the external cassette tape deck, and controls forward and repeat reproduction of a music piece based on the operation detected by the detecting means. 3. The cassette type reproducing apparatus according to claim 2, wherein: 6. The detecting means fast-forwards the external cassette tape deck according to a change in the electromotive force of the power generation unit.
The cassette type reproducing apparatus according to claim 5, wherein a rewind operation is detected. 7. The music demodulation means according to claim 1, wherein the demodulation means transmits blank data as an end signal of the music music to an external cassette tape deck reading means to control the music music advance and repeat reproduction. 6. The cassette type reproducing apparatus according to 5.