JP2001101822A - Storage medium with radio function and stored information reproduction system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the handilng time and labor required for the exchanging of a music storage medium being an object of reproduction at the time of reproducing musical information or the like. SOLUTION: A music storage medium 1 is formed by providing a storage area 11 storing musical information, a voice processing part 12 subjecting the musical information in the storage area 11 to a voice processing, a radio part 13 transmitting the musical information posterior to the voice processing on a radio and a control part 14 controlling these parts in one body. At a reproducer 2, 'medium ID' which is preliminarily given to the music storage medium 1 being the object of reproduction and the 'reproduction request' are transmitted and at the storage medium 1 received the 'medium ID' specifying a medium' self, the musical information in the storage area 11 is read out and after the musical information is processed in the voice processing part 12, the processed musical information is transmitted on a radio by the radio part 13. Then, at the reproducer 2, the musical information is received by a radio part 21 and the musical information is reproduced by a reproducing part 23. Since the musical information can be read out at the side of the music storage part 1, a desired musical information can be heard only by making the musical information to be transmitted from the music storage medium 1 at the reproducer 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a storage medium for storing music information and the like, and more particularly, to a storage medium with a wireless function capable of easily changing the storage medium to be reproduced when the storage medium is changed. The present invention relates to a stored information reproducing system used.

[0002]

2. Description of the Related Art Conventionally, for example, a compact disk (C
D) To play music from a storage medium such as a mini-disc (MD) or the like, a desired music is reproduced by inserting a compact disc into a dedicated player, for example.
When playing music on another compact disc, the compact disc inserted into the player is exchanged.

[0003]

However, for example, when a plurality of compact discs are switched and reproduced, it takes time to take out the compact disc from the player and replace it with another compact disc. In order to avoid this, a plurality of compact discs are inserted into one player, and a desired compact disc is selected so that the designated compact disc is automatically selected and played. Others are also known.

[0004] However, when a plurality of compact discs are inserted into a player as described above, the number of compact discs that can be inserted into the player is limited, and as the number of compact discs increases, the number of compact discs increases. As a result, the storage space of the reproducing machine increases, and there is a problem that the reproducing machine becomes large.

Accordingly, the present invention has been made in view of the above-mentioned conventional unsolved problem. When reproducing information stored in a storage medium, a wireless communication apparatus capable of easily switching the storage medium is provided. It is an object to provide a storage medium with a function and a storage information reproduction system.

[0006]

In order to achieve the above object, a storage medium with a wireless function according to claim 1 comprises an information storage means capable of storing information, and a storage information stored in the information storage means. An information reading means for reading the information and a wireless transmitting means for transmitting the storage information read by the information reading means by wireless communication are provided integrally with the information storing means.

In the storage medium with a wireless function according to the first aspect, the storage information stored in the information storage means is read by the information reading means, and the storage information read by the information reading means is read by the wireless transmission means. The information is transmitted by wireless communication, and the information storage unit, the information reading unit, and the wireless transmission unit are integrally formed. Therefore, the storage information can be read out without inserting the storage medium into the playback device, and the storage information from the desired storage medium is transmitted by wireless communication, so that the storage medium can be read even when the storage medium to be played back is changed. Can be easily performed without operating the.

A storage information reproducing system according to a second aspect of the present invention is a storage information reproducing system in which the storage information of a storage medium is reproduced by a reproducing device, wherein the storage medium includes information storage means, Information reading means for reading the storage information of the information storage means and a wireless transmission means for transmitting the storage information read by the information reading means by wireless communication when a reproduction request is received are provided integrally with the information storage means; The playback device plays back a playback request to a desired storage medium, a wireless reception unit that receives the storage information transmitted by the wireless transmission unit, and plays back the storage information received by the wireless reception unit. And a reproducing means.

The storage information reproducing system according to a third aspect is characterized in that the storage information is audio information.

In the storage information reproducing system according to the second and third aspects, when a reproduction request is issued from a reproducing device, the storage information stored in the information storage means, such as audio information, is stored in the storage medium. The read information is read by the reading means, and the read storage information is wirelessly transmitted by the wireless transmission means, and the information storage means, the information reading means, and the wireless transmission means are integrally formed. Then, in the reproducing device, the wirelessly transmitted stored information is received by the wireless receiving means, and the received stored information is reproduced by the reproducing means. Therefore, for example, even when the storage medium to be played is changed, the playback device performs an operation such as exchanging the storage medium by instructing a desired storage medium to wirelessly transmit the storage information. And it can be easily changed.

According to a fourth aspect of the present invention, in the storage information reproducing system, the storage medium includes registration means for registering a reproducing device capable of wirelessly communicating with the storage medium, and reproducing from the reproducing device registered by the registration means. The storage information is transmitted only when a request is received.

In the storage information reproducing system according to the present invention, a reproducing device capable of wireless communication with the storage medium is registered, and the storage medium transmits the stored information only when a reproduction request from the registered reproducing device is received. I do. Therefore, the storage information is not transmitted when a reproduction request is made from a non-registered reproduction device, so that the storage information is transmitted only to a specific reproduction device.

Further, in the storage information reproducing system according to a fifth aspect, the storage medium transmits the storage information in a transmission form unique to each reproduction device registered in the registration means. It is characterized by.

In the storage information reproducing system according to the fifth aspect, the storage information is transmitted from the storage medium in a transmission form unique to each reproduction device registered in the registration means, for example, in a different transmission channel. . Therefore, since it is not known what transmission channel is used by a reproducing device other than the reproducing device that has issued the reproduction request to the storage medium, the storage information transmitted from the storage medium transmits the reproduction request to the storage medium. Receiving by a reproducing device other than the reproducing device that performed the process is avoided.

[0015]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a schematic configuration diagram showing an example of a stored information reproducing system to which the present invention is applied. In the figure, reference numeral 1 denotes a music storage medium storing music information, and reference numeral 2 denotes a reproducing device including, for example, headphones for reproducing the music information in the music storage medium 1. The music storage medium 1 includes, for example, a storage area (information storage means) 11 such as a memory stick in which music information is stored by being compressed or the like, and a storage area 1.
1 for performing predetermined audio processing on the music information such as decompressing the music information stored in the audio processing unit 1, and a wireless unit (wireless transmission) for transmitting the music information processed by the audio processing unit 12 by wireless communication. Means 13 and a control section (information reading means) 14 for reading out the music information from the storage area 11 and controlling the operation of each section, and these are integrally formed.

On the other hand, the reproducing device 2 has a radio section (radio receiving means) 21 for receiving music information transmitted by radio communication.
And a storage area 22 for storing the received music information, a reproducing unit (reproducing means) 23 for reproducing the music information stored in the storage area 22, and a control unit 24 for controlling the operation of each of these units. This reproducing device 2 is actually, for example, as shown in FIG.
As shown in (1), a receiving unit 31 for receiving music information transmitted wirelessly, an RF unit (A / D) 32 for converting this into a digital signal, and a BaseBand for performing channel control and the like on the converted digital signal Part 33 and Base
A D / A converter 34 for converting the signal processed by the band unit 33 into an analog signal, a reproducing unit 35 for reproducing the analog signal,
The control unit 36 controls these units.

The control unit 14 of the music storage medium 1
Then, after registering with the playback device 2 and reading out the music information stored in the storage area 11 in response to the music information playback request from the registered playback device 2, the audio information is processed by the audio processing unit 12, The wireless transmission is performed via the wireless unit 13.

On the other hand, the control unit 24 of the playback device 2 registers the desired music storage medium 1 and, when a reproduction request for the music storage medium is input by an operator through input means (not shown), the designated music storage medium 1 is registered. A request for reproducing music information is made to the storage medium, and the received desired music information is temporarily stored in the storage area 22 and then reproduced by the reproducing unit 23.

The wireless units 13 and 21 perform communication in accordance with wireless communication standards such as IEEE 802.11, Bluetooth, and HomeRf. By using these communication standards, the possibility of unexpected communication between the music storage medium 1 and the playback device 2 is reduced. Further, the communication state such as crosstalk is stabilized, and the security is improved by using a protocol such as a designated authentication.

Next, the operation of the above embodiment will be described with reference to the state transition diagram of the music storage medium 1 and the playback device 2 shown in FIG. 3, and the mutual relationship between the music storage medium 1 and the playback device 2 shown in FIGS. Description will be made based on a flowchart showing the processing procedure.

In order to reproduce the music information in the music storage medium 1 in the reproducing device 2, first, registration is performed. As shown in FIG. 3, when the power is turned on, the music storage medium 1 shifts to the “playback state”, and the playback device 2 enters the “playback wait state”. From this state, when the operator makes a registration request by pressing a registration button (not shown) on the music storage medium 1 and the playback device 2, the state becomes a “registered state”.

When the music storage medium 1 is in the "registered state", a "registration request" is transmitted as shown in FIG. 4 (step S1).

In the playback device 2 in the “registered state”, that is, the playback device 2 that wishes to register with the music storage medium 1,
Upon receipt of the "registration request", "registration accepted" is transmitted (step S2), and further, "reproducer ID" which is an identification number assigned to each reproducer 2 in advance (step S2).
3, registration means)).

At this time, a playback device that is not in the “registered state” does not transmit “registration accepted” even if it receives the “registration request”.

When the music storage medium 1 receives the "registration acceptance" from the playback device 2 and further receives the "playback device ID", the "medium ID" which is an identification number given to each music storage medium in advance is received. It transmits (step S4). Thereby, the registration is completed, and as shown in FIG.
Then, the state shifts to the “reproduction state”.

On the other hand, the reproducing device 2 which has received the "medium ID" stores it in a predetermined storage area, and then shifts to a "reproduction waiting state" as shown in FIG. This completes the registration.

In the music storage medium 1, if "registration accepted" is received from a plurality of playback devices 2, the process is stopped, and the process returns to step S1 to perform the same process again.

From this state, when performing reproduction, when a reproduction instruction is given by pressing a reproduction button (not shown) on the reproduction device 2, the reproduction device 2 receives a "reproduction request" as shown in FIG. A “reproduction request + media ID” including the “medium ID” assigned to the desired music storage medium 1 is transmitted (step S11, reproduction request means). For example, a list of registered music storage media is displayed on a display unit such as a liquid crystal panel (not shown) of the playback device 2, and a desired music storage medium is selected from the list. "Medium ID" corresponding to the selected music storage medium is set and set.

In the music storage medium 1, its own "medium ID"
When "reproduction request + medium ID" including "reproduction request" is received, "reproduction acceptance" is transmitted (step S12). Then, the music information stored in the storage area 11 is read out and processed by the audio processing unit 12. Is transmitted via the wireless unit 13 (step S13). Thus, the reproduction processing ends.

On the other hand, when the reproducing device 2 receives the "reproduction acceptance", it shifts to the "reproduction state" as shown in FIG.
Then, when music information is received following “reproduction acceptance”, the transmission line of the music information between the radio unit 21 and the storage area 22 and the reproduction unit 23 is physically or softwarely connected, and The music information received by the unit 21 is transmitted to the reproducing unit 23 via the storage area 22 and reproduced.

As a result, the operator can listen to the music information stored in the music storage medium 1 by using the reproducing device 2, that is, headphones.

When the reception of the music information is completed, the communication between the radio unit 21 and the storage area 22 and the reproduction unit 23 is physically or softwarely shut off.
Is controlled so as not to be transmitted to the reproducing unit 23. Then, as shown in FIG. 3, the state shifts to the “playback waiting state”.

In this state, the next time the music information of another music storage medium 1 is heard, the playback device 2 performs the same operation as described above. When the music storage medium 1 has not been registered, the music storage medium 1 and the playback device 2 are shifted to the registration state and registered, and thereafter, the playback device 2 stores the desired music storage medium 1 in the registration state. The medium ID is set, and “reproduction request + medium ID” is transmitted.

Thus, the “reproduction request + medium I
The music storage medium 1 that has received D "reads out the music information stored in its own storage area 11 and transmits it via the radio unit 13 if its own medium ID is specified. The music information is not transmitted to the music storage medium 1 for which the medium ID is not specified.

As described above, the music information in the storage area 11 is read out on the music storage medium 1 side and transmitted wirelessly, so that the playback device 2 can listen to the music information in the different music storage medium 1 even when listening to the music information. The operation can be easily performed only by operating the reproducing device 2 without involving the operation of exchanging the music storage medium 1 or the like. That is, even when the music storage medium 1 is left on a shelf or the like, or stored in a bag or the like, the music information can be taken out.

Further, registration is performed between the music storage medium 1 and the playback device 2, and the music storage medium 1 has its own “medium ID”.
Since the music information is transmitted only when a reproduction request is received from the reproduction device 2 having the above, it is possible to prevent an unspecified number of reproduction devices 2 from extracting the music information from the music storage medium 1. Therefore, even when a copyright problem or the like occurs, such as music information, the music information is transmitted only in response to a playback request from the playback device 2 registered with the music storage medium 1. .

Although the above embodiment has been described with reference to the case where the audio processing unit 12 is provided in the music storage medium 1 to transmit the music information after the audio processing, the present invention is not limited to this. Alternatively, an audio processing unit may be provided in the reproducing device 2 so that the reproducing device 2 performs audio processing.

In the above-described embodiment, the music storage medium 1 extracts the music information from the music storage medium 1 by transmitting the music information when receiving the reproduction request from the registered reproducing device 2. In the above, a case has been described in which the number of playback devices 2 is limited, but it is also possible to transmit data in a transmission format unique to each playback device. That is, for example, a frequency is set for each playback device 2 at the time of registration, and music information is transmitted at a frequency unique to the playback device 2 that has made the playback request. For example, when data is transmitted by a frequency hopping method using Bluetooth as a wireless communication standard, a different transmission channel is set for each reproducing device 2 and transmission is performed using a transmission channel unique to the reproducing device 2 that has made a reproduction request. . This makes it possible to more reliably restrict the playback device 2 from which the music information in the music storage medium 1 can be extracted.

Further, in the above embodiment, since the music information of the music storage medium 1 is transmitted by radio, for example, when the music or the like recorded by the individual in the music storage medium 1 is listened to by a plurality of playback devices, etc. By receiving music information wirelessly transmitted from the music storage medium 1 by a plurality of playback devices 2, the music information stored in one music storage medium 1 can be heard by the plurality of playback devices 2.

In the above-described embodiment, the case where the reproducing device 2 is applied to the headphone is described. However, the present invention is not limited to this, and may be applied to an audio set or the like. The music information of the desired music storage medium 1 can be heard only by specifying the desired music storage medium 1 on the audio set side without performing an operation such as inserting the medium 1 into the audio set.

In the above embodiment, the case where the music storage medium 1 is selected in the reproducing device 2 has been described. For example, when the music storage medium 1 stores a plurality of music pieces, When performing registration between the music storage medium 1 and the playback device 2, the music storage medium 1 transmits to the playback device 2 a “medium ID” and a “song title ID” for identifying a song title stored therein. The playback device 2 displays the music title information together with the information for identifying the music storage medium 1 at the time of playback on the display unit, and selects a desired music storage medium 1 and the title of the music from the music title, and The corresponding “medium ID” and “song title ID” are transmitted together with “reproduction request”,
The music information corresponding to the designated “song name ID” in the music storage medium 1 may be read and transmitted.

In the above embodiment, the case where a memory stick is applied as the music storage medium 1 has been described. However, the present invention is not limited to this, and a compact flash, a hard disk, a compact disk (C
D), mini disks (MD), etc.

Further, by applying the present invention to a memory such as a mobile phone or a PDA as a music storage medium and storing music information or the like in the memory, the music information stored in the mobile phone or the PDA can be reproduced. .

In the above embodiment, the case where music information is transmitted has been described. However, the present invention is not limited to this. For example, video information or the like may be transmitted.

In the above embodiment, the reproduction device 2
A storage area may be provided on the side to store the music information transmitted from the music storage medium 1. By doing so, once the music information is received from the music storage medium 1, the playback apparatus 2 plays back the music information in the storage area, so that, for example, the wireless communication between the music storage medium 1 and the playback apparatus 2 Even when communication is not possible, desired music information can be reproduced.

In the above embodiment, music information may be stored in the music storage medium 1 wirelessly. That is, music information to be recorded may be transmitted wirelessly, received by the music storage medium 1, and written to the storage area. By doing so, not only reproduction but also recording can be easily performed without operating the music storage medium 1.

Also, in the above embodiment, when transmitting the “medium ID” from the music storage medium 1, the “playback device I”
Alternatively, the “media ID” may be transmitted after being encrypted by “D.” In this way, the playback device 2 that has not registered the “media ID” of the music storage medium 1 may recognize it. Can be avoided.

[0049]

As described above, according to the first aspect of the present invention,
According to the storage medium with a wireless function according to the present invention, the information reading means and the wireless transmission means are provided integrally with the information storage means, and the storage information is read out and transmitted by wireless communication on the storage medium side. By transmitting the storage information from the medium, the storage information can be reproduced without an operation such as inserting the storage medium into a playback device dedicated to the storage medium, and even when the storage medium to be reproduced is changed. It can be done easily.

Further, according to the storage information reproducing system according to the second and third aspects, the reproduction information is read out on the storage medium side by making a reproduction request from the reproducer to the desired storage medium. Therefore, even if the storage medium to be played back is changed, there is no need to exchange the storage medium or the like, and the change can be easily made only by the operation on the playback device side.

According to the storage information reproducing system of the present invention, since the reproducing device capable of wireless communication with the storage medium is registered, the stored information can be transmitted only to a specific reproducing device.

In particular, according to the storage information reproducing system according to the fifth aspect, the storage information is transmitted in a specific transmission form for each of the reproducing machines registered in the registration means. It is possible to avoid being received by a reproducing device other than the reproducing device that has made a reproduction request for the medium.

[Brief description of the drawings]

FIG. 1 is a functional block diagram showing an example of a stored information reproduction system to which the present invention has been applied.

FIG. 2 is a block diagram showing a specific configuration of the reproducing device 2.

FIG. 3 is a state transition diagram of a music storage medium and a player.

FIG. 4 is a flowchart showing a processing procedure of a music storage medium and a playback device at the time of registration.

FIG. 5 is a flowchart illustrating a processing procedure of a music storage medium and a playback device during playback.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Music storage medium 2 Playback device 11 Storage area 12 Audio processing unit 13, 31 Radio unit 14, 24 Control unit

Claims (5)

[Claims] 1. An information reading means, comprising: an information storage means capable of storing information; and a wireless transmission means for transmitting, by wireless communication, the storage information read by the information reading means. Are provided integrally with the information storage means. 2. A storage information reproducing system in which information stored in a storage medium is reproduced by a reproducing device, wherein the storage medium includes information storage means and reads out information stored in the information storage means. Means and a wireless transmission means for transmitting the storage information read by the information reading means by wireless communication when a playback request is received are provided integrally with the information storage means. It is provided with reproduction request means for making a reproduction request, radio reception means for receiving the stored information transmitted by the radio transmission means, and reproduction means for reproducing the stored information received by the radio reception means. Storage information reproduction system. 3. The storage information reproducing system according to claim 2, wherein said storage information is audio information. 4. The storage medium includes registration means for registering a playback device capable of wireless communication with the storage medium, and transmits the storage information only when a playback request from the playback device registered by the registration means is received. The stored information reproducing system according to claim 2 or 3, wherein the stored information is reproduced. 5. The storage information according to claim 4, wherein the storage medium is configured to transmit the storage information in a transmission form unique to each playback device registered in the registration unit. Reproduction system.