JP2002372994A - Audio reproducing device and data storage medium - Google Patents

Abstract

PROBLEM TO BE SOLVED: To output an audio sound by reproducing audio data stored in an original data storage medium until the performance of a new data storage medium is available when exchanging the medium. SOLUTION: A data storage medium 1 and an audio reproducing device 2 are provided with a two-way communicatable wireless transmitting and receiving part. In the reproducing device 2, when the data storage medium 1 during reproduction is ejected, audio data are wirelessly requested to the data storage medium, and the audio data wirelessly transmitted from the data storage medium are inputted to a reproducing part so that the audio reproduction of the data storage medium can be continued (1), and when another data storage medium 1' is inserted, the transmission stop of the audio data is wirelessly requested to the original data storage medium 1, and the audio data are read from the new data storage medium 1', and inputted to the reproducing part (2).

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to an audio reproducing apparatus and a data storage medium, and more particularly to an audio reproducing apparatus and a data storage medium capable of wirelessly transmitting and receiving audio data and control data.

[0002]

2. Description of the Related Art A large-capacity semiconductor data storage medium such as a memory card or a memory stick has been developed as a data storage medium, music data is stored in the data storage medium, and the music is reproduced by a dedicated reproducing device. It is possible to play.

[0003]

When playing back music data recorded on a data storage medium, the performance must be stopped when the medium is replaced. For this reason, there is a method of reading audio data from a data storage medium at high speed, storing the data in a memory, reading audio data from the memory at a normal speed, and reproducing the audio data, so that output of audio sound is continued even when the medium is replaced. However, such a method requires a memory, and the time during which sound is produced depends on the memory capacity. Therefore, unless the capacity is increased, a silent period occurs when the storage medium is replaced. To play a data storage medium, the medium must be set in an audio reproducing apparatus. Therefore, when the performance of the data storage medium being set is temporarily stopped, the performance of another data storage medium is performed, and thereafter, the performance of the original data storage medium is performed again. There has been a problem that the insertion operation has to be performed and the operation is complicated.

From the above, it is an object of the present invention to reproduce audio data stored in an original data storage medium and output an audio sound until a new data storage medium can be played at the time of medium exchange. Is to do so.
Another object of the present invention is to enable the performance of a data storage medium without setting the medium in an audio playback device. It is another object of the present invention to be able to change the data storage medium to be played without changing the data storage medium set in the audio reproducing apparatus.

[0005]

SUMMARY OF THE INVENTION A first aspect of the present invention is an audio reproducing apparatus for reading audio data from a data storage medium and reproducing the audio data. (1) A bidirectional communication with a radio transmitting / receiving unit provided on the data storage medium. (2) a receiving unit that receives a data storage medium, (3) a reproducing unit that outputs audio data read from the data storage medium as audio sound, (4) ejection of the data storage medium,
An ejection / insertion detection unit for detecting insertion; (5) when a data storage medium being reproduced is ejected from the receiving unit, requests audio data from the data storage medium via a wireless transmission / reception unit; A control unit is provided for inputting audio data transmitted wirelessly to the reproduction unit and continuing audio reproduction of the data storage medium. Further, when another data storage medium is inserted into the receiving section, the control section requests the wireless transmission / reception section to wirelessly stop transmission of audio data to the original data storage medium, and transmits the audio data from the new data storage medium to the new data storage medium. The data is read and input to the playback unit. According to the above audio reproducing apparatus, the audio data stored in the original data storage medium is reproduced and the audio sound is output continuously until the new data storage medium can be played when the medium is replaced. Can be.

A second aspect of the present invention is an audio reproducing apparatus for reading and reproducing audio data from a data storage medium. (1) A wireless transmission / reception apparatus capable of bidirectional communication with a wireless transmission / reception unit provided on a data storage medium. Unit, (2) a receiving unit for receiving the data storage medium, (3) a reproducing unit for outputting audio data read from the data storage medium set in the receiving unit as audio sound, and (4) a reproducing unit set in the receiving unit When audio reproduction is requested wirelessly from an external data storage medium during reproduction of the data storage medium, reproduction of the data storage medium set in the receiving unit is stopped, and instead, the audio reproduction is performed wirelessly from the external data storage medium. The received audio data is input to the playback device to start playback, and when the stop of the audio playback is requested wirelessly from an external data storage medium, the audio data is set in the receiving unit. A control unit for restarting reproduction of the data storage medium. According to the above audio reproducing apparatus, it is possible to change the data storage medium to be played without replacing the data storage medium set in the audio reproducing apparatus.

A third aspect of the present invention is a data storage medium for inputting audio data to an audio reproducing device, and (1)
A memory for storing audio data, (2) a wireless transmission / reception unit capable of bidirectional communication with a wireless transmission / reception unit provided in the audio playback device, (3) a contact unit for connecting to the audio playback device, (4) audio When set in the receiving portion of the playback device, input the audio data read from the memory to the audio playback device via the contact portion,
When not set in the receiver of the audio playback device,
A control unit that transmits the audio data read from the memory to the audio playback device via a wireless transmission / reception unit. The data storage medium further includes a switch for requesting audio reproduction start and reproduction stop, and the control unit includes:
When audio playback start is requested by the switch,
The audio data read from the memory is transmitted to the audio data reproducing device via the wireless transmission / reception unit, and when a request to stop the audio reproduction is requested, the reading of the audio data from the memory and the transmission of the audio data are stopped. According to this data storage medium, it is possible to play the data storage medium without setting the data storage medium in the audio reproducing apparatus.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION

(A) Outline of the present invention (a) Performance complementation when data storage medium is replaced FIG. 1 is an explanatory diagram of performance complementation when data storage medium is replaced. The present invention uses a data storage medium such as a memory stick (MS) 1 in which a wireless communication function (such as Bluetooth) and a power supply circuit for driving the wireless communication function are incorporated (referred to as a wireless communication MS). Also, a wireless circuit is incorporated in the audio reproducing apparatus 2 to enable wireless communication between the wireless communication MS1 and the audio reproducing apparatus 2. Thereby, the following operation is realized.

(1) The playback device 2 reads music data stored in the wireless communication MS 1 inserted in the slot (medium receiving portion) 3 and outputs audio sound from the speaker 4 (normal playback). (2) When the wireless communication MS1 is taken out from the playback device 2, the wireless communication MS1 wirelessly transmits the continuation of the music being played to the playback device 2. The playback device 2 outputs an audio sound from the speaker 4 based on the received audio data (wireless communication playback). (3) When the user has instructed to stop playing music, or when a new wireless communication MS1 'is set in the playback device 2, the playback device 2 sends an audio data transmission stop request to the wireless communication MS1 and performs wireless communication. Stops the performance based on the received audio data. The playback device 2 reads the music data stored in the newly inserted wireless communication MS1 'and outputs an audio sound from the speaker 4 (normal playback).

(B) Interruption performance by wireless communication MS FIG. 2 is a schematic explanatory diagram of interruption performance by the wireless communication MS of the present invention. The present invention makes it possible to change the data storage medium to be played without changing the data storage medium to be set in the audio reproducing apparatus 2. (1) The playback device 2 is a wireless communication M set in the device.
The reproduction of S1 is performed (normal reproduction). (2) Turn on the MS transmission on / off switch 20 of the external wireless communication MS1 ', and then read out the audio data stored in the internal memory of the wireless communication MS1' and transmit it to the playback device 2 by wireless communication. I do. The playback device 2 that has received the audio data stops the playback of the currently set wireless communication MS1, and instead plays the audio data received from the external wireless communication MS1 'via wireless communication (by interruption). Wireless communication playback). (3) MS transmission on / off switch 2 of wireless communication MS1 '
When 0 is turned off, the wireless communication MS1 'stops transmitting audio data. Upon notification of the MS transmission on / off switch being turned off or stopping transmission of audio data, the playback device 2 restarts playback of the original wireless communication MS1 that has been set (normal playback by restarting).

(B) Radio communication MS FIG. 3 is a block diagram of the radio communication MS1, wherein 11 is a memory for storing audio data of each song, 12 is a read control unit for reading audio data from the memory, and 13 is an audio reproducing device. 2, a wireless transmission / reception unit (for example, a Bluetooth transmission / reception unit) capable of bidirectional communication with the wireless transmission / reception unit provided in 2, a control unit 14 for controlling the entire wireless communication MS, 1
Reference numeral 5 denotes a rechargeable battery that supplies power to each unit,
Reference numeral 6 denotes a control data decoding / creating unit which decodes control data transmitted from the audio reproducing device 2 by wireless communication and inputs the control data to the control unit 14, and transmits the control data to the audio reproducing device 2 according to an instruction from the control unit 14. Create control data.

Reference numeral 17 denotes a contact portion that contacts the contact of the audio reproducing device 2. The audio data read from the memory 11 is input to the audio reproducing device 2, and the control data input from the reproducing device 2 is input to the control unit 14. Then, the power supply line from the playback device 2 is connected to the battery 15. Reference numeral 18 denotes a switching unit for switching and inputting audio data read from the memory 11 to one of the wireless transmitting / receiving unit 13 and the contact unit 17 in accordance with an instruction from the control unit 14. Reference numeral 19 denotes an ejection / insertion detection unit which detects that the wireless communication MS1 has been inserted into the receiving unit 3 (slot) of the reproducing apparatus 2 and that the wireless communication MS1 has been ejected from the receiving unit. Reference numeral 20 denotes MS transmission on / off. The switch is a switch for requesting the audio reproduction device 2 to reproduce the audio data stored in the memory 11 and requesting the reproduction device 2 to stop the reproduction.

(C) Audio Reproducing Apparatus FIG. 4 is a block diagram of the audio reproducing apparatus 2. Numeral 31 denotes a reproducing section, which converts digital audio data into an analog signal by D / A conversion, and thereafter appropriately controls sound quality and volume. Then, audio sound is emitted from the speaker 4 by performing amplification control. Reference numeral 32 denotes a wireless transmission / reception unit (for example, a Bluetooth transmission / reception unit) that can bidirectionally communicate with the wireless transmission / reception unit 13 provided in the wireless communication MS1 (FIG. 3). Reference numeral 33 denotes a control unit that controls the entire audio playback device. Is a contact portion that contacts the contact of the wireless communication MS1, outputs audio data transmitted from the wireless communication MS1, sends control data input from the control unit 33 to the wireless communication MS1, and further connects the power line. Connect to battery 15 of wireless communication MS1.

A switching unit 35 selects one of the audio data sent from the wireless communication MS1 by wireless communication and the audio data sent from the wireless communication MS1 via the contact unit 33 and inputs the selected data to the reproducing unit 31. Reference numeral 36 denotes a control data decryption / creation unit, which performs wireless communication MS by wireless communication.
In addition to decoding the control data sent from the control unit 1 and inputting it to the control unit 33, the control unit 33 creates control data to be sent to the wireless communication MS1 according to an instruction from the control unit 33. Reference numeral 37 denotes a discharge detection unit, which detects that the wireless communication MS1 has been discharged from the receiving unit (slot) 3 of the reproduction device 2, and reference numeral 38 denotes an operation unit of the audio reproduction device.

(D) Performance Completion Processing at the Time of Data Storage Medium Replacement FIG. 5 is a flow of performance complement processing at the time of data storage medium replacement. When the wireless communication MS1 being played (see FIG. 1) is ejected from the slot 3 of the audio playback device 2 (step 101), the control unit 14 (FIG. 3) of the wireless communication MS1 shifts to a communication standby state (step 102). ), And waits for a transmission request from the audio reproduction device 2 (step 103).
On the other hand, the control unit 33 (FIG. 4) of the audio playback device 2
When the wireless communication MS1 being reproduced is ejected from the slot 3 (step 201), the wireless communication MS1 is requested to transmit music data by wireless communication via the wireless transmission / reception unit 32 (step 202). Wait for reception (step 203).

If there is a request for transmission of music data from the reproducing device 2 by wireless communication, the control unit 14 of the wireless communication MS1 reads out the music data from the memory 11 after the place where the music has been played, and reproduces the audio by wireless communication. The data is transmitted to the device 2 (step 104). Thereafter, the control unit 14 transmits the music data to the reproducing device 2 until receiving a request to stop transmitting the music data from the audio reproducing device 2 (step 105). On the other hand, when receiving the music data from the wireless communication MS1 by wireless communication, the control unit 33 of the audio playback device 2 controls the switching unit 35 to input the received data to the playback unit 31 and output the audio sound from the speaker 4. (Step 2
04). Then, a new wireless communication MS1 'is placed in slot 3.
Is inserted (step 205) until the wireless communication MS1 is inserted.
It reproduces the music data received from and outputs it as audio sound.

In such a state, the new wireless communication MS
When 1 'is inserted into the slot 3, the control unit 33 of the audio reproducing apparatus 2 requests the wireless communication MS1 to stop transmitting the music data by wireless communication via the wireless transmitting / receiving unit 32 (step 206). , Requesting data from the inserted new wireless communication MS 1 ′, and controlling the switching unit 35 to input the music data received from the wireless communication MS 1 ′ via the contact unit 34 to the reproducing unit 31 for reproduction (step). 20
7). When the control unit 14 of the wireless communication MS 1 receives the music data transmission stop request from the audio playback device 2,
The reading of the music data is stopped, and the wireless communication is stopped (step 106).

(E) Interruption Performance Processing by Wireless Communication MS FIG. 6 is a flowchart of an interruption performance processing by the wireless communication MS. The audio reproducing device 2 performs a performance based on the music data read from the wireless communication MS1 (see FIG. 2) set in the slot 3 (step 301).
It is checked whether an MS transmission SW ON signal (reproduction request signal) has been received from another external wireless communication MS1 '(step 302). In this state, when the MS transmission on / off SW 20 of the external wireless communication MS1 'in the communication off state is turned on (steps 401 to 402), the control unit 14 sets the MS to ON.
A transmission SW ON signal is transmitted to the audio reproduction device 2 by wireless communication (step 403), and the reception of a transmission permission signal from the reproduction device is waited (step 404).

The control unit 33 of the audio reproducing apparatus 2 is MS
When the transmission SW ON signal is received, the audio source is changed to
The switching unit 35 is instructed to switch from the wireless communication MS1 currently set in the slot to the external wireless communication MS1 '. Thus, the switching unit 35 switches to select the audio data transmitted from the external wireless communication MS1 'by wireless communication thereafter (step 303). Next, the control unit 33 controls the external wireless communication MS by wireless communication.
1 'is transmitted (step 304), and waits for reception of music data (step 30).
5). Upon receiving the audio data transmission permission signal, the control unit 14 of the external wireless communication MS 1 ′ reads the audio data from the memory unit 11 and transmits the audio data to the audio reproducing device 2 by wireless communication (step 4).
06), the audio data is transmitted until the MS transmission on / off SW 20 is turned off (step 406). On the other hand, when audio data is received from the external wireless communication MS1 'by wireless communication, the audio reproducing device 2 converts the audio data into an audio sound and outputs it from the speaker 4 (step 30).
6) Thereafter, the reproduction of the audio data received from the external wireless communication MS1 'is continued until the MS transmission SW off signal (reproduction stop request signal) is received (step 307).

In this state, when the MS transmission on / off switch 20 is turned off, the control unit 14 of the external wireless communication MS1 'transmits an MS transmission SW off signal to the audio reproducing apparatus 2 by wireless communication (step 407). Next, the reading and transmission of the audio data are stopped (step 408). On the other hand, upon receiving the MS transmission SW off signal, the control unit 33 of the audio reproducing device 2 switches the audio source from the external wireless communication MS1 'to the original wireless communication MS1 currently set in the slot, so as to switch the audio source. To instruct. Thereby, the switching unit 35 thereafter
A switch is made to select audio data sent from the wireless communication MS1 set in the slot via the contact section 34 (step 308). Thereafter, the control unit 33
Requests audio data from the wireless communication MS1 set in the slot and restarts its reproduction (step 3).
09). The case where music data is stored in the data storage medium has been described above, but the present invention is not limited to music data, and can be applied to the case where other data is stored and reproduced. As described above, the present invention has been described with reference to the embodiments. However, the present invention can be variously modified in accordance with the gist of the present invention described in the claims, and the present invention does not exclude these.

[0021]

As described above, according to the present invention, the audio data stored in the original data storage medium is reproduced and the audio sound is output until the new data storage medium can be played when the medium is replaced. it can. Further, according to the present invention, the data storage medium to be played can be changed without replacing the data storage medium set in the audio reproducing apparatus. Further, according to the present invention, it is possible to play a data storage medium without setting the data storage medium in an audio reproducing apparatus.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram of performance complementation when exchanging a data storage medium.

FIG. 2 is a schematic explanatory diagram of an interrupt performance by the wireless communication MS of the present invention.

FIG. 3 is a configuration diagram of a wireless communication MS.

FIG. 4 is a configuration diagram of an audio playback device.

FIG. 5 is a flowchart of a performance complementing process when exchanging a data storage medium.

FIG. 6 is an interrupt performance processing flow by the wireless communication MS.

[Explanation of symbols]

 Reference Signs List 1 wireless communication MS 2 audio reproducing device 3 slot (medium receiving unit) 4 speaker 20 MS transmission on / off SW

Claims (5)

[Claims] 1. An audio reproducing apparatus for reading and reproducing audio data from a data storage medium, comprising: a wireless transmission / reception unit capable of bidirectional communication with a wireless transmission / reception unit provided on the data storage medium; Unit, a reproducing unit that outputs audio data read from the data storage medium as audio sound, an ejection / insertion detection unit that detects ejection and insertion of the data storage medium, and a data storage medium that is being reproduced is ejected from the receiving unit. A control unit for requesting audio data from the data storage medium via a wireless transmission / reception unit, inputting audio data wirelessly transmitted from the data storage medium to the reproduction unit, and continuing audio reproduction of the data storage medium; An audio playback device comprising: 2. The control unit, when another data storage medium is inserted into the receiving unit, requests the wireless transmission / reception unit to wirelessly stop transmission of audio data to the original data storage medium, The audio playback device according to claim 1, wherein the audio data is read from a storage medium and input to a playback unit. 3. An audio reproducing apparatus for reading and reproducing audio data from a data storage medium, comprising: a wireless transmission / reception unit capable of bidirectional communication with a wireless transmission / reception unit provided in the data storage medium; A reproducing section for outputting audio data read from a data storage medium set in the receiving section as an audio sound and outputting the audio data wirelessly from an external data storage medium while reproducing the data storage medium set in the receiving section Is requested, stop the reproduction of the data storage medium set in the receiving unit, input the audio data sent wirelessly from the external data storage medium to the reproduction device to start reproduction, When the stop of audio playback is requested wirelessly from an external data storage medium, playback of the data storage medium set in the receiving unit Audio reproduction apparatus characterized by resuming control unit, comprising a. 4. A data storage medium for inputting audio data to an audio reproducing device, comprising: a memory for storing audio data; a wireless transmitting / receiving unit capable of bidirectional communication with a wireless transmitting / receiving unit provided in the audio reproducing device; A contact portion for connecting to a device; when set in a receiving portion of the audio reproducing device, audio data read from the memory is input to the audio reproducing device via the contact portion upon request, and the receiving portion of the audio reproducing device is When not set to, a control unit that transmits audio data read from the memory by a request to an audio playback device via a wireless transmission / reception unit,
A data storage medium comprising: 5. A switch for requesting start and stop of audio reproduction, wherein the control unit is operable, when the start of audio reproduction is requested by the switch, to read audio data read from a memory via a wireless transmission / reception unit. The data storage medium according to claim 4, wherein the data storage medium is transmitted to the data reproducing apparatus, and when audio reproduction stop is requested, reading of audio data from the memory and transmission of the audio data are stopped.