JP2007249035A - Electronic musical instrument, program for embodying control method thereof, and server - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an electronic musical instrument which enables simple confirmation of communication without incurring cost, a program for embodying its control method, and a server. <P>SOLUTION: A CPU generates a header for connection confirmation, as shown in Fig. (a), to perform connection confirmation. The header for connection confirmation includes a method, a host, and user agent information. In the field of a method, a GET method is described, and in the GET method the head page ("/") of a web page that a host provides is specified as a resource to request acquisition thereof from the host. In the field of a host, the URL of the server is described. In the field of user agent information, the type ("ProductX1") of the electronic musical instrument as an embodiment of the present invention and information ("CK"), showing that the header is for connection confirmation, is described. The CPU transmits the header for connection confirmation to the server that is the host. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an electronic musical instrument that transmits and receives data to and from a device connected via a communication network, a program for realizing the control method thereof, and a server.

  2. Description of the Related Art Conventionally, an electronic musical instrument that transmits and receives data to and from a device connected via a communication network is known.

  Some electronic musical instruments are connected to a communication network and receive various services from a server on the communication network. In a general electronic musical instrument that can be connected to a communication network, when connecting to the communication network, a setting screen for network setting is displayed on the display device in the same way as a normal PC (personal computer), and the user When various setting values are input from the setting screen, a communication application such as a built-in browser is started, and it is confirmed whether or not it can be actually connected to the communication network.

In addition, unlike a PC, a general electronic musical instrument is not assumed to be used in a state where it is always connected to a communication network. Further, a user of this type of electronic musical instrument connects the electronic musical instrument to the communication network. In many cases, it is troublesome to perform environment setting (network setting) to create the environment setting information by using an external PC, and the environment setting information stored in the external PC is stored. There is also proposed an electronic musical instrument that can be easily connected to a communication network by being read from the computer and automatically set to the electronic musical instrument (see, for example, Patent Document 1).
JP 2005-266302 A

  However, among the above-described conventional electronic musical instruments, when the former cannot be successfully connected to the communication network, communication setting and communication confirmation must be performed alternately. Especially, the screen of the display device is small, and the setting screen and When the confirmation screen (browser screen) cannot be displayed on a single screen, the screens must be alternately switched and displayed, forcing the user to perform troublesome operations. A user who is unfamiliar with the network setting often makes a simple setting mistake, thereby increasing the number of alternating operations between the communication setting and the communication confirmation.

  Of the above-described conventional electronic musical instruments, in the latter case, a PC must be prepared in addition to the electronic musical instrument, which increases the cost required by the user.

  The present invention has been made paying attention to this point, and provides an electronic musical instrument capable of easily confirming communication without incurring a cost, a program for realizing the control method, and a server. For the purpose.

  In order to achieve the above object, an electronic musical instrument according to claim 1 includes a connection unit that connects to a server via a communication network, and a transmission unit that transmits a data acquisition request to a server connected by the connection unit. In response to the data acquisition request transmitted by the transmission means, the reception means for receiving the data transmitted by the server via the communication network, the connection means, the transmission means, and the reception means, A setting unit that performs a series of settings for transmitting and receiving data to and from the server, and a confirmation unit that performs connection confirmation with the server in the series of settings by the setting unit.

  Preferably, the confirmation unit transmits a predetermined data acquisition request to the server via the transmission unit, and among the data transmitted by the server in response thereto, partial data including status information is transmitted. And receiving via the receiving means, and confirming the connection with the server based on the status information in the received partial data.

  More preferably, the predetermined data acquisition request includes information indicating a data acquisition request for connection confirmation.

  In order to achieve the above object, the server according to claim 4 includes a connection unit that connects to an electronic musical instrument via a communication network, and a reception unit that receives a data acquisition request from the electronic musical instrument connected by the connection unit. And storage means for storing the content data; content data corresponding to the acquisition request received by the receiving means is read from the storage means; status information is added to the read content data; Information indicating that the acquisition request is a data acquisition request for connection confirmation is included in the acquisition request received by the receiving unit and the transmission unit that transmits to the electronic musical instrument connected via Check means for checking whether or not the acquisition request is connected to the received acquisition request by the check means. When it is detected that information indicating that the request is for obtaining data for confirmation, it is detected that the transmission means does not transmit the content data and is added to the content data Only to the electronic musical instrument.

  In order to achieve the above object, the program according to claim 5 can be realized by the same technical idea as claim 1.

  According to the first or fifth aspect of the present invention, since the connection with the server is confirmed in a series of settings for transmitting and receiving data to and from the server, the user of the electronic musical instrument can When the musical instrument is actually connected to the server to receive the provision of various data, the connection confirmation has already been completed, so it is not necessary to confirm the connection again.

  According to the second aspect of the present invention, of the data transmitted by the server, the partial data including the status information is received, and the connection with the server is performed based on the status information in the received partial data. Since the confirmation is made, that is, when the data sent by the server contains unnecessary data for the connection confirmation, the unnecessary data is not received, so the time spent for the connection confirmation can be shortened. it can.

  According to the fourth aspect of the present invention, when it is detected that the received acquisition request includes information indicating that the acquisition request is a data acquisition request for connection confirmation. In this case, content data is not transmitted, and only status information added to the content data is transmitted to the electronic musical instrument, so that information unnecessary for the electronic musical instrument is not transmitted to the electronic musical instrument.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a block diagram showing a schematic configuration of an electronic musical instrument according to an embodiment of the present invention.

  As shown in the figure, the electronic musical instrument of the present embodiment includes a performance operator 1 including a keyboard for inputting pitch information, and a setting including a plurality of switches, wheels, and joysticks for inputting various information. An operation element 2, a detection circuit 3 for detecting an operation state of the performance operator 1, a detection circuit 4 for detecting an operation state of the setting operation element 2, a CPU 5 for controlling the entire apparatus, and a control executed by the CPU 5 ROM 6 for storing programs and various table data, RAM 7 for temporarily storing music data, various input information and calculation results, timer 8 for measuring interrupt time and various times in timer interrupt processing, and various information For example, a display device 9 having a liquid crystal display (LCD), a light emitting diode (LED), etc. A nonvolatile memory 10 for storing various setting values, an external storage device 11 for storing various application programs including the control program, various music data, various data, etc., an external MIDI message, or a MIDI message A MIDI interface (I / F) 12 that outputs data to the outside and a communication interface (I / F) that transmits / receives data to / from, for example, a server computer (hereinafter abbreviated as “server”) 102 via the communication network 101. F) 13, a tone generator circuit 14 for converting performance data input from the performance operator 1, preset music data, and the like into audio signals, and various effects for imparting various effects to the audio signals from the tone generator circuits 14. The effect circuit 15 and the audio signal from the effect circuit 15 into sound. To, for example, DAC (Digital-to-Analog Converter) or amplifier is constituted by a sound system 16 such as a speaker.

  The above components 3 to 15 are connected to each other via a bus 17, a timer 8 is connected to the CPU 5, another MIDI device 100 is connected to the MID II / F 12, and a communication network 101 is connected to the communication I / F 13. Is connected to the sound source circuit 14, and the sound system 16 is connected to the effect circuit 15. Here, the communication I / F 13 and the communication network 101 are not limited to the wired system but may be a wireless system. In addition, both types may be provided.

  Examples of the non-volatile memory 10 include an NV (Non Volatile) RAM, a power-backed-up RAM, a flash memory, and the like. The nonvolatile memory 10 stores setting values that should be retained even when the electronic musical instrument of the present embodiment is turned off. This type of setting value includes a setting value based on network settings, a user ID, and the like.

  Examples of the external storage device 11 include a flexible disk drive (FDD), a hard disk drive (HDD), a CD-ROM drive, and a magneto-optical disk (MO) drive. As described above, the external storage device 11 can also store a control program executed by the CPU 5. When the control program is not stored in the ROM 6, the control program is stored in the external storage device 11. By reading it into the RAM 7, it is possible to cause the CPU 5 to perform the same operation as when the control program is stored in the ROM 6. In this way, control programs can be easily added and upgraded.

  As can be seen from the above configuration, the present invention is applied to an electronic keyboard instrument. However, the embodiment is not limited to a keyboard instrument, and may be a string instrument type, a wind instrument type, a percussion instrument type, or the like.

  In the present embodiment, the server 102 is a web server that provides various web services. The server 102 may be configured by the same components as those of the electronic musical instrument of the present embodiment, but the performance operator 1, the detection circuit 3, and the MIDII / F 12 are not essential elements and may be omitted. Generally, a server computer is used.

  The control process executed by the electronic musical instrument configured as described above and the server 102 will be described first with reference to FIGS. 2 and 3, and then described in detail with reference to FIGS. 4 and 5. .

  2 is a diagram showing an example of a display screen displayed on the display device in FIG. 1, and FIG. 2 (a) shows an example of the display screen when the automatic performance mode is selected. FIG. 2B shows an example of the display screen when the practice mode is selected, and FIGS. 2C to 2H show examples of the display screen when the network setting mode is selected. . 2A to 2H also show a plurality of operators 2a to 2g included in the setting operator 2. FIG.

  Transition between the automatic performance mode, the practice mode, and the network setting mode is performed every time the user operates one of the left / right movement switches 2e and 2f or the dial switch 2g. For example, when the user operates the right movement switch 2f in the state where the practice mode of FIG. 2B is selected, the practice mode shifts to the network setting mode of FIG.

  In the network setting screen 10a of FIG. 2C, an item enclosed in parentheses ([]) means that it can be set by a switch adjacent to the item, in the illustrated example, the switch 2d. That is, when the user operates the switch 2d on the network setting screen 10a in FIG. 2C, network setting is started and the IP address setting screen 10a in FIG. 2D, which is the first screen, is displayed. Is done. When the user operates the switch 2c in a state where the IP address setting screen 10a is displayed, an IP address input screen (not shown) is displayed, and the user can input a target IP address. When the user operates the right movement switch 2f with the IP address setting screen 10a displayed, the subnet mask setting screen 10a shown in FIG. 2E is displayed. When the user operates the right movement switch 2f while the subnet mask setting screen 10a is displayed, the setting end screen 10a shown in FIG. 2F is displayed. When the user operates the switch 2b, the CPU 5 confirms the connection to the server 102 with the set network settings. If the connection is successful, the CPU 5 indicates that the connection is successful, as shown in FIG. While the display screen 10a is displayed, if the connection fails, the display screen 10a of FIG. 2 (h) indicating that the connection has failed is displayed.

  Thus, one of the features of the present invention is that the connection with the server 102 is confirmed during a series of network setting procedures. As a result, when the user actually connects his / her electronic musical instrument to the server 102 and wants to receive various data, the connection has already been confirmed, so that it is not necessary to confirm the connection again.

  FIG. 3 illustrates an example of a connection confirmation header ((a)) transmitted by the electronic musical instrument of the present embodiment for connection confirmation, and an example of a response message ((b) transmitted by the server 102 in response thereto. ) And (c)).

  In order to confirm the connection, the CPU 5 generates a connection confirmation header as shown in FIG. The connection confirmation header includes method, host, and user agent information. The connection confirmation header actually includes other data, but the other data is not shown because it is not necessary for explaining the characteristics of the present invention.

  In the method field, a GET method is described. In the GET method, the top page (“/”) of a web page provided by the host is specified as a resource, and the acquisition is requested from the host. In the host field, the URL (uniform resource locator) of the server 102 is described. In the user agent information field, the electronic musical instrument model (“ProductX1”) of the present embodiment and information (“CK”) indicating that this header is for connection confirmation are described. In this embodiment, the first page (“/”) is designated for connection confirmation. However, pages other than the first page, which are known in advance by the electronic musical instrument and the server 102 of this embodiment, are specified. You may make it specify.

  The CPU 5 transmits this connection confirmation header to the server 102 as the host. The server 102 that has received the connection confirmation header generates a response message in response thereto. For example, two types of response messages are generated according to the type of the server 102. The response message in FIG. 3B shows an example of a message generated by a server that cannot understand the meaning of the information “CK” included in the connection confirmation header. The response message in FIG. An example of what is generated by the server that can understand the meaning of the information “CK” included in the header is shown. That is, a server that cannot understand the meaning of the information “CK” included in the connection confirmation header uses the first page (“/”) of the web page requested by the GET method in the connection confirmation header as the body, A response message with a header including status information “200” (= OK) added thereto is generated and transmitted to the electronic musical instrument of the present embodiment. On the other hand, the server that can understand the meaning of the information “CK” included in the connection confirmation header ignores the GET method in the connection confirmation header, does not generate a body, and generates status information “200” (= OK). ) Including only a header including () is generated and transmitted to the electronic musical instrument of the present embodiment.

  The electronic musical instrument of the present embodiment receives all of the response messages from FIG. 3C among the response messages from the server 102 and performs connection confirmation based on the status information included therein. For the response message 3 (b), the reception of the response message is discontinued when the header is received, and the connection is confirmed based on the status information included in the received header.

  As described above, in the electronic musical instrument according to the present embodiment, when the response message transmitted from the server 102 to the connection confirmation header includes unnecessary data for connection confirmation, the unnecessary data is not received. As a result, the time spent for checking the connection can be shortened. In addition, since information indicating that the header is for connection confirmation is embedded in the connection confirmation header, a server that can understand the meaning is required for connection confirmation when receiving this connection confirmation header. A response message consisting only of data can be generated and transmitted to the other electronic musical instrument.

  Next, this control process will be described in detail.

  FIG. 4 is a flowchart showing the procedure of the network setting process executed by the electronic musical instrument of the present embodiment, particularly the CPU 5, and this network setting process is activated when the user selects the network setting mode.

This network setting process is mainly
(1) Screen display process in FIG. 2C (step S1)
(2) Display processing and input value acquisition processing of the screens of FIGS. 2D and 2E (step S3)
(3) Screen display process of FIG. 2 (f) (step S4)
(4) Connection confirmation process (steps S6 to S11)
(5) Screen display process in FIG. 2G (step S12)
(6) Screen display process in FIG. 2 (h) (step S13)
(7) Setting saving process (step S15)
It is comprised by each process. Note that the display processing of each screen in FIGS. 2C to 2H only generates image data corresponding to the screen to be displayed and supplies the image data to the display device 9. Omitted.

  In the input value acquisition process of (2) above, when the user operates the switch 2c on the screen of FIG. 2 (d) or FIG. 2 (e), the CPU 5 displays a set value input screen (not shown), When the user inputs a setting value from this screen, the CPU 5 stores the setting value in a setting value storage area secured at a predetermined position in the RAM 7.

  In the connection confirmation process (4), first, the CPU 5 updates the network setting with the setting value stored in the setting value storage area of the RAM 7, and then saves the setting value in the nonvolatile memory 10 ( Step S6). Next, the CPU 5 generates the connection confirmation header and transmits the connection confirmation header to the server 102 in accordance with HTTP (Hypertext Transfer Protocol) (step S7). Then, the CPU 5 starts timing of the timer 8 (step S8), and when a response message is sent from the server 102 until the timer 8 times a predetermined time, the CPU 5 If the response message includes a body part, the reception is discontinued (steps S9 → S10). Further, when the status information in the header part of the response message is “200” (= OK), the CPU 5 proceeds to the display process of (5), that is, the display process of the screen indicating that the connection is successful. On the other hand, when the response message is not sent from the server 102 until the timer 8 times the predetermined time, or when the status information in the header part of the response message is not “200” (= OK), the CPU 5 The process proceeds to the display process (6), that is, the screen display process indicating that the connection has failed.

  In the setting saving process of (7), as in step S6, the CPU 5 updates the network setting with the setting value stored in the setting value storage area of the RAM 7, and then stores the setting value in the nonvolatile memory. Save in memory 10.

  FIG. 5 is a flowchart showing the procedure of the control process executed by the server 102 when the header transmitted by the electronic musical instrument of the present embodiment is received.

  This control process also describes the process of the server 102 when the electronic musical instrument of the present embodiment transmits a header other than the connection confirmation header. The feature of the present invention is that the connection confirmation header is Since it is in the process of the server 102 at the time of reception, the process of the server 102 when the connection confirmation header is received will be mainly described.

  When the connection confirmation header is received, the information for designating the first page of the web page is described in the connection confirmation header by the GET method as described above. The first page is usually stored in the server 102. Then, since it may be passed to the electronic musical instrument side of the present embodiment, the code “CK” is added to the user agent information in the connection confirmation header, that is, this header is used for connection confirmation. It is checked whether or not a code indicating that it is a thing is included (steps S101 → S102 → S103). Since the connection confirmation header includes the code “CK” as described above, a header having the status information “OK” code (= 200) is generated (step S105), and a response message including this header is generated. Is transmitted to the electronic musical instrument of the present embodiment (step S106).

  On the other hand, when a data acquisition request message including a normal header that is not a connection confirmation header is received, the code “CK” indicating that it is for connection confirmation is not included in the normal header. The server 102 generates a body with the specified data (steps S101 → S102 → S103 → S104), further generates a header with the status information as “OK” code (step S105), and the generated body and header Is sent to the electronic musical instrument of the present embodiment (step S106).

  The server 102 that has executed this control process is a server that can understand the meaning of the code “CK”.

  In step S10 of FIG. 4, when both the header part and the body part are included in the response message, the reception of the response message is terminated when all the header parts are received, that is, reception of the body part. However, if the response message contains a body part at the stage of receiving and using the received response message regardless of whether the response message contains a body part, May be ignored.

  In this embodiment, the connection confirmation header and response message are generated according to HTTP, but other protocols are adopted, and the connection confirmation header and response message are generated according to the adopted protocol. You may make it produce | generate.

  Furthermore, in the present embodiment, a small screen that can display only two lines of character strings is used as the display screen of the display device 9, and the screen is switched by a series of setting operations. The apparatus is adopted, and a setting value input part (see the screen in FIG. 2D or FIG. 2E) and a connection confirmation button (see the screen in FIG. 2F) are displayed in one screen. You may do it.

  A program in which a storage medium storing software program codes for realizing the functions of the above-described embodiments is supplied to a system or apparatus, and a computer (or CPU or MPU) of the system or apparatus is stored in the storage medium. It goes without saying that the object of the present invention can also be achieved by reading and executing the code.

  In this case, the program code itself read from the storage medium realizes the novel function of the present invention, and the program code and the storage medium storing the program code constitute the present invention.

  As a storage medium for supplying the program code, for example, a flexible disk, hard disk, magneto-optical disk, CD-ROM, CD-R, CD-RW, DVD-ROM, DVD-RAM, DVD-RW, DVD + RW, magnetic A tape, a non-volatile memory card, a ROM, or the like can be used. Further, the program code may be supplied from a server computer via a communication network.

  Further, by executing the program code read by the computer, not only the functions of the above-described embodiments are realized, but also the OS running on the computer based on the instruction of the program code performs the actual processing. It goes without saying that a case where the functions of the above-described embodiment are realized by performing part or all of the above and the processing thereof is included.

  Further, after the program code read from the storage medium is written into a memory provided in a function expansion board inserted into the computer or a function expansion unit connected to the computer, the function expansion is performed based on the instruction of the program code. It goes without saying that the CPU or the like provided in the board or the function expansion unit performs part or all of the actual processing and the functions of the above-described embodiments are realized by the processing.

It is a block diagram which shows schematic structure of the electronic musical instrument which concerns on one embodiment of this invention. It is a figure which shows an example of the display screen displayed on the display apparatus in FIG. FIG. 2 is a diagram illustrating an example of a connection confirmation header transmitted by the electronic musical instrument of FIG. 1 and an example of a response message transmitted by the server in response to the connection confirmation. It is a flowchart which shows the procedure of the network setting process which the electronic musical instrument of FIG. 1, especially CPU performs. It is a flowchart which shows the procedure of the control processing which a server performs, when the header which the electronic musical instrument of FIG. 1 transmitted is received.

Explanation of symbols

2 ... setting operator (setting means), 5 ... CPU (connection means, transmission means, reception means, setting means, confirmation means), 13 ... communication I / F (connection means, transmission means, reception means)

Claims (5)

A connection means for connecting to a server via a communication network;
Transmitting means for transmitting a data acquisition request to a server connected by the connecting means;
Receiving means for receiving data transmitted by the server via the communication network in response to an acquisition request for data transmitted by the transmitting means;
Setting means for performing a series of settings for transmitting and receiving data to and from the server with respect to the connecting means, the transmitting means, and the receiving means;
An electronic musical instrument comprising: confirmation means for confirming connection with the server in a series of settings by the setting means.   The confirmation unit transmits a predetermined data acquisition request to the server via the transmission unit, and receives the partial data including status information among the data transmitted by the server in response to the request. 2. The electronic musical instrument according to claim 1, wherein the electronic musical instrument performs reception confirmation with the server based on status information in the received partial data.   The electronic musical instrument according to claim 2, wherein the predetermined data acquisition request includes information indicating a data acquisition request for connection confirmation. Connection means for connecting to an electronic musical instrument via a communication network;
Receiving means for receiving a data acquisition request from the electronic musical instrument connected by the connecting means;
Storage means for storing content data;
The content data corresponding to the acquisition request received by the receiving unit is read from the storage unit, the status information is added to the read content data, and the transmission is transmitted to the electronic musical instrument connected through the connection unit. Means,
Check means for checking whether or not the acquisition request received by the receiving means includes information indicating that the acquisition request is a data acquisition request for connection confirmation;
When the check means detects that the received acquisition request includes information indicating that the acquisition request is a data acquisition request for connection confirmation, the transmission The server does not transmit the content data, and transmits only the status information added to the content data to the electronic musical instrument. A connection procedure for connecting to a server via a communication network;
A transmission procedure for transmitting a data acquisition request to a server connected by the connection procedure;
A reception procedure for receiving data transmitted by the server via the communication network in response to an acquisition request for data transmitted by the transmission procedure;
A setting procedure for performing a series of settings for transmitting and receiving data to and from the server for the connection procedure, the transmission procedure, and the reception procedure;
A program for causing a computer to execute a confirmation procedure for confirming connection with the server in a series of settings according to the setting procedure.

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