JP2003244277A - Data transfer method and system by protocol conversion, and program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a system capable of transferring data even when the low order part of a controller divided into high order and low order parts is changed to a totally different hardware interface. <P>SOLUTION: A conversion device 13 is disposed between a controller and a processor 12, and the controller converts data from a high order layer into a format corresponding to the low order layer to transfer the data to the low order layer, and converts data form the low order layer into a format corresponding to the high order layer to transfer the data to the high order layer by using a conversion control module 113, and the low order layer of the controller receives the data converted by the conversion control module 113, and transmits the data to the conversion device, and receives the data from the conversion device, and supplies the data to the conversion control module. The conversion device 13 receives the data from the low order layer of the controller 11, and converts the data into a format corresponding to an interface at the processor 12 side to transmit the data to the processor, and converts the data from the processor into a format corresponding to an interface at the low order layer side of the controller to transmit the data to the controller. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a data transfer method, a system and an apparatus, and a program for causing a computer to execute a process, and more particularly to a connection technique between a control device such as a personal computer and a processing device such as a peripheral device.

[0002]

2. Description of the Related Art For connecting personal computers (referred to as "PC"), PC peripherals such as printers and scanners, digital video disks (referred to as "DVD"), digital video cameras (referred to as "DV camera"), etc. to each other. IEEE 1394 (IE
EE Standard for a High Performance Serial Bus) and USB (Universal Serial Bus: USB1.1, USB)
2.0) is used. In this specification, the PC is referred to as a control device, and the other devices described above are referred to as processing devices.

FIG. 7 is a diagram schematically showing an example of the configuration of a conventional system including a control device and a processing device. Figure 7
As shown in FIG.
Is the bus control hardware 714, the bus control driver 7
13, middleware 712 that performs protocol control, etc., application programs (“applications”,
(Also referred to as “AP”) 711, the processing unit 72 includes a bus control hardware 721, a bus control driver 722,
It includes middleware 723 for performing protocol control and the like, and a processing control unit (or application) 724.
As described above, the control device 71 needs to have the same hardware interface as the hardware interface (also referred to as “HW interface”) of the processing device 72.

In FIG. 7, bus control hardware 73
4, the control device 73 including the bus control driver 733, the middleware 732 that performs protocol control, and the application 731 has a hardware interface different from the processing device 72.

In the conventional system shown in FIG. 7,
When a remote operation instruction is issued from the user to the processing device 72, control is passed in the order of the application 711 of the control device 71, the middleware 712, the bus control driver 713, and the bus control hardware 714, and the transmission line. And the bus control hardware 7 of the processing device 72.
21, bus control driver 722, middleware 723,
Route of the processing sequence called processing control 724
Be transmitted in. The response from the processing device 72 is
It is transmitted in the opposite route.

In the control device 71, the upper layer (upper part)
When the lower layer (lower part) is changed to an interface different from that up to that point, that is, the application 711 and the middleware 712, which are the upper layer of the control device 71, The bus control driver 713 and the bus control hardware 714, which are the same as the upper layer application 731 and middleware 732 on the control device 73 side and are the lower layer of the control device 71, are connected to the bus control driver 733 and the bus of the control device 73. When changing to the control hardware 734, the control device 73 cannot connect to the processing device 72.
As one specific example, the processing device 72 may be IEEE 1394.
In the case of a DV camera having an interface, the PC (control device 71) connected to the DV camera must have a 1394 interface, and has only a USB interface and no IEEE 1394 interface (for example, the control device 73). ) Cannot connect to a DV camera.

For example, Japanese Laid-Open Patent Publication No. 2001-136588 discloses a remote control system that has an IEEE 1394 or USB interface, easily adds functions and devices, and reliably operates the processing device. The control device and the processing device are IEEE 1394. Alternatively, the processing device has a USB interface, and the processing device for realizing a predetermined line function and the information for user interface output including the information notifying the current state of the processing device are IEEE
A means for transmitting to the control device according to the E1394 or USB interface, the control device outputting the transmitted information for user interface output to the output device, and a processing means for realizing a predetermined line function of the processing device. There is disclosed a configuration including an input unit for inputting a command for controlling the command and a unit for transmitting the command to the processing device according to the IEEE 1394 or USB interface. In this conventional system, the control device defines a user interface for determining the operation of the processing device, and no protocol of the control device and the processing device is disclosed.

Further, Japanese Laid-Open Patent Publication No. 11-145995 discloses a method of resource acquisition and data transfer when a plurality of buses having different bus resource acquisition methods are connected.
C, cameras and videophones are USB devices, satellite receivers and recorders are IEEE 1394 devices, adapters mediate between USB and IEEE 1394, and PCs are USB.
It plays the role of host for exchanging data with the PC, and when there is an instruction from the user, the PC issues a request to the Isochronous resource manager when it issues an Isochronous transfer request to the USB device after the initial setting of IEEE1394. Then, request the adapter to connect the pipe to USB, and if it succeeds, Isochronous
In addition to the transfer, the adapter receives data on the IEEE 1394 bus and transfers the data to the host (PC), or the host receives image data from the camera and sends it to the adapter, and the adapter sends it to the IEEE side. Is disclosed. In this conventional method, even if the interfaces of the processing device and the control device are different, the conversion device is used as an intermediary to manage the bus resources.

However, the control device side, especially the PC
Is divided into an upper layer (layer including AP and middleware) and a lower layer (layer including bus control hardware including a physical layer and a bus control driver that controls this hardware). When the lower layer is a PC whose IEEE 1394 interface is changed to a USB interface,
The upper layer cannot change due to the change of the interface. As will be apparent from the following description, in the present invention, even if the lower layer is a PC having a USB interface instead of the 1394 interface in the PC forming the control device, the upper layer application (AP) and middleware are installed. In a system that uses layers including
The DV camera equipped with the IEEE 1394 interface can be connected.

[0010]

As described above, the PC
In order to connect a control device such as to a processing device such as a PC peripheral device, it is necessary for both devices to have a common hardware interface, and the connection is performed by implementing a common protocol control. For example, a PC having a USB interface can be connected to a digital camera device having a USB interface by implementing protocol control that allows both the PC and the digital camera device to operate. However, this PC cannot be physically connected to a digital camera having an IEEE 1394 interface.

Most current DV cameras have an IEEE 1394 interface. However, with the advent of high-speed LAN (local area network) and USB in the future, if the PC side does not have an IEEE 1394 interface but only an interface such as LAN or USB, the IEEE 1394 device cannot be connected.

By inserting an interface conversion box between the control device and the processing device, it is considered that the connection control between the IEEE 1394 device and the USB device can be realized without changing both the control device and the processing device. The middleware layer that controls the protocol of devices and devices has a part whose function is realized according to the interface specifications that were originally specified, and it is possible to connect without changing this protocol part, but it is not possible to connect. .

Therefore, the present invention was conceived in view of the above problems, and an object thereof is to provide a system and an apparatus capable of realizing data transfer even between apparatuses having different hardware interfaces. , Method, and program. Another object of the present invention is to
Even if the lower layer of the control device changes to a different hardware interface than before, with the same control and processing as before change,
An object of the present invention is to provide a system, an apparatus, a method, and a program capable of operating an upper layer of a control device and a processing device.

[0014]

In order to achieve the above object, a system according to the present invention is a system including a control device and a processing device, wherein the control device is an upper layer of the control device. It is provided with a conversion means (referred to as a "control side conversion means") for converting the data format with a lower layer,
A conversion device is provided between the control device and the processing device,
The control side conversion means includes means for receiving data from an upper layer of the control device, converting the data into a format corresponding to a lower layer of the control device, and then transferring the data to a lower layer of the control device. The lower layer receives the data converted by the control side conversion means and sends it to the conversion device,
The conversion device includes means for receiving data from a lower layer of the control device, converting the data into a format corresponding to an interface on the processing device side, and sending the data to the processing device.

In the present invention, the conversion device includes means for receiving data from the processing device, converting the data into a format corresponding to an interface on the lower layer side of the control device, and then sending the data to the control device. The lower layer of the device receives the data from the conversion device and supplies the data to the control side conversion means, and the control side conversion device receives the data from the lower layer of the control device to the upper layer of the control device. It is provided with a means for converting the data into a corresponding format and delivering it to the upper layer of the control device.

A method according to another aspect of the present invention is a data transfer method for a system including a control device and a processing device, wherein data format conversion between an upper layer and a lower layer of the control device is performed. A conversion module for performing the above is provided in the control device, the conversion device is arranged between the control device and the processing device, and the conversion module of the control device receives the data from the upper layer of the control device and receives the data. Converting to a format corresponding to the lower layer of the control device and passing it to the lower layer of the control device; and a step of the lower layer of the control device receiving data from the conversion module and sending it to the conversion device. And the conversion device receives data from a lower layer of the control device, converts the data into a format corresponding to the interface on the processing device side,
Sending to the processing device.

In the method according to the present invention, the conversion device receives the data from the processing device, converts the data into a format corresponding to an interface on the lower layer side of the control device, and then sends the data to the control device. A step in which a lower layer of the control device receives data from the conversion device and supplies the data to the conversion module; and the conversion module of the control device receives data from a lower layer of the control device, the control device Of a format corresponding to the upper layer of the above, and then delivering to the upper layer of the control device.

According to the present invention having such a configuration, in the environment in which the control device and the processing device are connected to each other, and in the mode in which the inside of the control device is divided into the upper layer and the lower layer, the lower layer of the control device is different from that before. Even if you change to a hardware interface, with the same control method and processing method as before,
The upper layer of the control device and the processing device can operate. As will be apparent from the following description, the above object can be achieved in the same manner by the inventions of the claims.

[0019]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described. The present invention includes a control device (11) and a processing device (12).
And the control device (11) is a conversion module (“control side conversion module”) that forms conversion means for converting the data format between the upper layer (111, 112) and the lower layer (114, 115). (113). Furthermore, between the control device (11) and the processing device (12),
A conversion device (13) is provided. The control side conversion module (113) of the control device (11) receives the data from the upper layer (112) of the control device, converts the data into a format corresponding to the lower layer of the control device, and then the lower layer of the control device ( 1
14) The lower layer of the control device transmits the data from the control side conversion module (113) to the transmission means (14).
To the conversion device (13). Converter (1
3) converts the data transferred from the lower layer of the control device (11) into a format corresponding to the interface of the processing device (12) and then sends it to the processing device (12) via the transmission means (15). To do.

The conversion device (13) receives the data transferred from the processing device (12) via the transmission means (15), converts the data into a format corresponding to the interface of the lower layer of the control device (11), and then converts the data. , And sends it to the control device (11) via the transmission means (14), and the lower layer of the control device (11) receives and controls the data transferred from the conversion device (13) via the transmission means (14). Side conversion module (1
13), the control side conversion module (113)
The data from the lower layer of the control device (11) is converted into a format corresponding to the upper layer (112) of the control device and then passed to the upper layer of the control device.

The lower layer of the control device (11) is a bus control driver (114) comprising bus control hardware (115) including a physical layer connected to the transmission means (14) and software for controlling the bus control hardware. ) Consists of
The upper layer of the control device (11) is composed of middleware (112) for performing protocol control and an application (111), and the control side conversion module (113) is provided between the upper layer (112) and the bus control interface. Performs protocol conversion of.

The conversion device (13) transmits to the lower layer of the control device (11) and the processing device (12) by transmission means (1).
4, 131) and means (131, 132)
135, 134) and means (13) for performing protocol conversion between the lower layer of the control device and the interface of the processing device.
3) is provided.

Forming a layered structure in the control device (11),
Application (111), middleware (11
2), the control side conversion module (113) and the bus control driver (114) have their processing functions realized by a program executed by a computer constituting the control device (11) (claims 21 and 22). Similarly, in the converter (13), the bus control drivers (132, 13)
4), the control side conversion module (133) realizes its processing function by a program executed by a computer constituting the conversion device (13) (claims 23 and 2).
4).

[0024]

EXAMPLES Examples of the present invention will be described below with reference to the drawings in order to describe the above-described embodiments in more detail. FIG. 1 is a diagram schematically showing the configuration of a system that constitutes an embodiment of the present invention. Referring to FIG. 1, the system according to this embodiment includes a control device 11, a processing device 12, a conversion box (BOX) 13, and a control device 11.
A cable 14 for connecting the processing device 12 to the processing device 1;
A cable 15 for connecting the conversion box 2 and the conversion box 13 is provided.

The control unit 11 includes an application program (referred to as "AP") 111 that provides a user interface using the processing unit 12, middleware 112 that controls the operation of the processing unit 12, and a control side that converts the interface into a lower interface. Conversion module 113 and cable 1
4 connector connection, bus control hardware 115 including physical layers such as a transmission circuit and a reception circuit, and a bus control driver 11 for controlling the bus control hardware of the control device 11.
4 and 4 are provided.

The processing unit 12 includes bus control hardware 121 which is an interface with the outside, a bus control driver 122 which controls the bus control hardware 121,
Middleware 12 for controlling the protocol of the controller 11
3 and an application program (AP) 124 that controls the user interface in the processing device 12.

The conversion box 13 includes bus control hardware 131 that performs a hardware interface with the control device 11 side, a bus control driver 132 that controls the bus control hardware 131, the control device 11 side and the processing device 1.
In-box conversion module 133 for mutually converting an interface difference (difference) between the processing device 12 and the processing device 12
A bus control driver 134 that controls the bus control hardware on the side, and a bus control hardware 135 that performs a hardware interface with the processing device 12 side are provided. This conversion box 13 is
It is also recognized as one device by the processing device 12 side.

Next, the overall operation of the system according to this embodiment will be described in detail with reference to FIG. When the user gives a remote operation instruction to the processing device 12, the control is handed over in the order of the application 111 and the middleware 112 on the control device 11 side. In this embodiment, unlike the configuration shown in FIG. 7, the middleware 112 does not immediately transfer control to the bus control driver, but controls the control side conversion module 113 located in the lower layer of the middleware 112. hand over.

The control conversion module 113 converts the data packet format suitable for the lower bus control driver 114 and transfers control to the lower bus control driver 114.
Thereafter, the bus control hardware 115 uses the cable 14 to send out a data signal.

Data is transmitted from the control device 11 to the conversion box 13 via the cable 14. In the conversion box 13, the bus control hardware 131 receives a signal from the cable 14, and the control is transferred to the box (BOX) side conversion module 133 via the bus control driver 132.

The box-side conversion module 133 creates a data format that is exactly the same as the data packet output by the middleware 112 by the conversion processing, and thereafter, the data is passed to the bus control driver 134 and the bus control hardware 135 and processed. In the device 12, data of exactly the same format as the data format when it is transferred to the processing device 72 of FIG.
It is delivered to the processing device 12.

Next, an example of the operation of this embodiment will be described using a specific embodiment. In the following embodiments, the control device 11 is a PC and the processing device 12 is a DV camera.
The cable 14 is a USB cable, and the cable 15 is IEEE
It becomes an E1394 serial bus.

In this embodiment, the PC 11 is an IEEE
A DV having an IEEE 1394 interface is obtained by converting the E1394 interface into a USB interface and passing it to the conversion box 13 and re-converting it into the IEEE 1394 interface in the conversion box 13.
You can control the camera.

FIG. 2 is a flow chart for explaining the processing of one embodiment of the present invention. FIG. 2 shows the control conversion module 1
An example of the operation of 13 is shown. The operation of this embodiment will be described with reference to FIGS.

First, when a remote operation instruction is issued from the PC 11 to the DV camera 12, data and control are transferred in the order of the application 111 and middleware 112 of the PC 11. Next, the control is transferred to the control side conversion module 113.

At step 201, the control conversion module 113 receives an instruction from the upper middleware 112.

In step 202, it is judged whether or not it is a 1394Async instruction (asynchronous transfer instruction). 139
If it is a 4Async command, USB: Bu in step 203
Shift to lk conversion processing. 1394A in step 202
If it is not a ysnc instruction, in step 204, 1394
It is determined whether it is an Isoch instruction (isochronous transfer instruction). If it is a 1394Isoch instruction, the process proceeds to USB: Isoch conversion processing in step 205. If neither command is given, it is processed as an OS (operating system) command in step 206, and then the process ends.

The processing of steps 203 and 204 respectively creates a USB packet in a form in which each IEEE 1394 packet is left as it is.

When the packet conversion is completed, the control conversion module 113, the lower-level bus control driver 114 (US
Control is passed to the B driver).

Thereafter, the bus control hardware 115 (USB) of the control device 11 sends a data signal to the conversion box 13 via the USB cable 14.

Data is transmitted from the control device 11 to the conversion box 13 via the USB cable 14. In the conversion box 13, the bus control hardware 131 (USB) receives a signal, and the bus control driver 132 (USB driver)
Control is passed to the box-side conversion module 133 via.

FIG. 3 is a diagram showing an example of the movement of the box side conversion module 113 in the conversion box 13. Referring to FIG. 3, in step 301, a command from the bus control driver 132 is received.

In step 302, it is determined whether or not it is USB: Bulk. USB: Bulk, step 3
03, 1394: Pass control to the Async conversion processing.

If it is not USB: Bulk in step 302, it is determined in step 304 whether it is a USB: Isoch command. If it is USB: Isoch, the control is passed to the 1394: Isoch conversion process of step 305. The data format generated by these conversions is exactly the same as the data packet output by the middleware 112.

Bus control driver 13 of conversion box 13
4. The data is transferred to the bus control hardware 135, and the processing device 12 receives the data from the conventional system (control device 7 in FIG. 7) via the IEEE 1394 serial bus (cable) 15.
1 and the configuration of the processing device 72), exactly the same data can be passed.

As a result of the execution of the processing unit 12, in step 306 of FIG. 3, the box side conversion module 133 issues an instruction to the lower order and is activated from the end wait,
7 in 1394Async response (1394Async
c command response), 1394Asyn
If it is a c response, USB: B in step 308.
The ulk conversion process 308 is performed, and in step 311, a response to the upper layer is returned.

If it is not a 1394Async response in step 307, 1394Is is sent in step 309.
It is determined whether or not it is an och response (response of 1394Isoch command), and if it is a 1394Isoch response, USB: Isoch conversion processing 310 is performed,
In step 311, a response to the higher rank is returned.

After that, control is returned by a route opposite to that of the instruction issuance, and the control side conversion module 113 issues an instruction to the lower order in step 207 and exits from the end wait.
Then, in step 208, it is determined whether or not it is a USB Bulk response, and if it is a USB Bulk response, the process moves to the 1394: Async conversion process in step 209, and the response to the upper layer is returned in step 212.

In step 210, it is judged whether or not it is a USB Isoch response. If it is a USB Isoch response, then in step 211, 1394 Iso is sent.
The ch conversion processing is performed, and in step 212, a response to the upper layer is returned. Then, the control is returned to the upper side, and the process ends.

Next, in this embodiment, an example of a mechanism for passing control to the control conversion module 113 without changing control of the middleware 112 will be described. As a comparative example, FIG. 6 shows the middleware 712 and the bus control driver 713 of FIG. 7 extracted. Figure 4
The middleware 112, control side conversion module 113, and bus control driver 114 of this embodiment are extracted.

In FIG. 6, the method of controlling the bus control driver 713 by the middleware 712 is as follows: instruction issue table 4 registered in the OS (operating system).
It is performed based on 1. In the instruction issuing table 41, the correspondence table of the instruction of the middleware 112 (instruction issuing table of the middleware 112) and the instruction receiving address (bus control driver 713 instruction receiving table) including the entry label of the bus control driver 713 Become. When the instruction 1 is issued by the middleware 112, according to the instruction issue table 41, it is dispatched to the receiving address of the instruction 1 of the bus control driver (“instruction 1 reception:”, where “:” is a label), and the entry “ The process defined in “command 1 received:” (the process defined between “Start” and “End”) is executed, whereby the command 1 is delivered.

On the other hand, in this embodiment, in order for the middleware 712 to transfer control to the control conversion module 113,
As shown in FIG. 4, the middleware 112 is realized by changing the jump destination of the registered instruction issue table to the control conversion module 113 like the instruction issue table 51.

The instruction conversion table 52 is also interposed between the control conversion module 113 and the lower-level bus control driver 114 to realize the transfer of instructions.

FIG. 5 shows the IEEE 13 in this embodiment.
FIG. 9 is a diagram for explaining 94 and USB packet conversion.

Each process on the side of the control device 11 creates a packet in which each packet of the upper module is left as it is and a header for adding an identifier to the lower module is added in a form including the packet. In addition, conversion box 13
The processing on the side is such that each module removes the header part of the packet, and finally when it passes to the bus control driver 134, it is converted into the data format output by the middleware 112 of the control device 11. In the control side conversion module 113, the instruction of the middleware 112 is 1394A.
US for sync instruction (1394isoch instruction)
B header is added to the bus control driver 114, bus control hardware 115, 131, bus control driver 132.
And the box side conversion module 133 has 13
94Async packet with header (1394isoc
packet with h header) arrives, and bus control driver 1
34, 1394 Async data (1394iso
ch data) is delivered. Similarly, for the response from the processing device 12, the box-side conversion module 133 adds U to the packet data from the processing device 12.
The packet to which the SB header is added is transmitted to the control device 11 via the cable 14, the bus control driver 114 of the control device 11 passes the received packet to the control side conversion module 113, and the control side conversion module 113 uses the USB.
The packet with the header removed is sent to the middleware 112.

In the present invention, the connection between the control device, the conversion device, and the processing device is not limited to the line (cable) connection, and it goes without saying that the present invention can be applied to the wireless connection. is there. Although the present invention has been described with reference to the above embodiments, the present invention is not limited to the configurations of the above embodiments, and can be made by those skilled in the art within the scope of each claim of the claims. Various transformations that would be
Of course, it also includes modifications.

[0057]

As described above, according to the present invention,
In the environment in which the control device and the processing device are connected, when the control device is further divided into an upper layer and a lower layer, the upper layer of the control device and the processing device have a different interface from that of the lower layer of the control device. Even if it changes, it can operate with the same control method and processing method as before the change, improving versatility, convenience, and availability.

[Brief description of drawings]

FIG. 1 is a diagram schematically showing a configuration of an embodiment of the present invention.

FIG. 2 is a flow chart for explaining the operation of the control side conversion module 113 in one embodiment of the present invention.

FIG. 3 is a box in one embodiment of the present invention.
9 is a flowchart for explaining the operation of the side conversion module 133.

FIG. 4 is a diagram illustrating an instruction passing mechanism according to an embodiment of the present invention.

FIG. 5 is a diagram schematically showing a list format of IEEE 1394 and USB packet conversion according to an embodiment of the present invention.

FIG. 6 is a diagram for explaining an instruction passing mechanism in a conventional system.

FIG. 7 is a diagram schematically showing a configuration of a conventional system.

[Explanation of symbols]

11 Control device 12 Processor 13 conversion box 14, 15 Transmission means 41 Command issue table 51 Instruction issue table 52 Instruction issue table 111 applications 112 middleware 113 Control side conversion module 114 bus control driver 115 Bus control hardware 121 Bus control hardware 122 Bus control driver 123 middleware 124 applications 131 Bus control hardware 132 Bus control driver 133 Box side conversion module 134 Bus control driver 135 Bus control hardware 201 to 212, 301 to 311 steps 71 Control device 72 Processor 73 Conversion Box 711 application 712 middleware 713 Bus control driver 714 bus control hardware 721 bus control hardware 722 bus control driver 723 middleware 724 application

Claims (26)

[Claims] 1. A system comprising a control device and a processing device, wherein the control device is a conversion means (“control side” for converting a data format between an upper layer and a lower layer of the control device. "Conversion means"), and a conversion device between the control device and the processing device, the control-side conversion means receives the data from the upper layer of the control device to the lower layer of the control device. The control device further comprises a unit for converting the data into a corresponding format and delivering the converted data to a lower layer of the control device, wherein the lower layer of the control device receives the data converted by the control-side conversion unit and sends the data to the conversion device, The conversion device includes means for receiving data from a lower layer of the control device, converting the data into a format corresponding to the interface on the processing device side, and then sending the data to the processing device. Transmission system. 2. A system comprising a control device and a processing device, wherein the control device comprises a conversion means (“control side” for converting a data format between an upper layer and a lower layer of the control device. (Hereinafter referred to as "conversion means"), and a conversion device is provided between the control device and the processing device, the conversion device receiving data from the processing device and corresponding to an interface on a lower layer side of the control device. And a means for transmitting the converted data to the control device, the lower layer of the control device receives data from the conversion device and supplies the data to the control-side conversion means, and the control-side conversion means includes the control device. A data transfer system comprising means for receiving data from a lower layer of the device, converting the data into a format corresponding to an upper layer of the control device, and passing the data to an upper layer of the control device. Beam. 3. A system comprising a control device and a processing device, wherein the control device is a conversion means (“control side” for converting a data format between an upper layer and a lower layer of the control device. "Conversion means"), and a conversion device between the control device and the processing device, the control-side conversion means receives data from an upper layer of the control device to a lower layer of the control device. A unit for converting the data into a corresponding format and then delivering the data to a lower layer of the control device; and a device for receiving data from a lower layer of the control device and converting the data into a form corresponding to an upper layer of the control device, and then the control device. Means for delivering to the upper layer of the control device, the lower layer of the control device, means for receiving the data converted by the control side conversion means and sending out to the conversion device, data sent from the conversion device Received And a means for supplying to the control side conversion means, wherein the conversion device receives the data transferred from a lower layer of the control device and converts the data into a format corresponding to the interface on the processing device side. A means for sending to the processing device, and a means for sending the data transferred from the processing device to the control device after converting the data into a format corresponding to an interface on the lower layer side of the control device, A data transfer system characterized in that 4. An upper layer of the control device, wherein a lower layer of the control device has bus control hardware including a physical layer, and a bus control driver made of software for controlling the bus control hardware. Includes a middleware that performs protocol control and an application that bears a user interface, and the control-side conversion means includes an upper layer and a lower layer of the control device between the middleware and the bus control driver. 4. The data transfer system according to claim 1, comprising a conversion module that performs protocol conversion processing between the interfaces. 5. The conversion device comprises a lower layer of the control device, bus control hardware connected to each of the processing devices via transmission means, and software for controlling the bus control hardware. A bus control driver, further comprising conversion means for performing protocol conversion between a lower layer of the control device and an interface of the processing device,
The data transfer system according to claim 1, wherein the data transfer system is a data transfer system. 6. The control side conversion means receives a packet from an upper layer of the control device, creates a packet with a header corresponding to a lower layer of the control device, and creates a packet in a lower layer of the control device. The converting device receives the packet transferred from the lower layer of the control device, removes the header added by the control-side converting means from the packet, and the module of the upper layer of the control device. 6. The data transfer according to any one of claims 1 to 5, further comprising: a unit for converting the converted packet data into a format output by the processor; and a unit for supplying the converted packet data to the processing device. system. 7. The converting device adds a header corresponding to a lower layer of the control device to a packet transferred from the processing device, and a packet to which the header is added to a lower layer of the control device. And a means for supplying a packet transferred from the conversion device to the control-side conversion means, wherein the control-side conversion means is for the control device. 7. The device according to claim 1, further comprising a unit that supplies packet data obtained by removing the added header from a packet from a lower layer to an upper layer of the control device. Data transfer system. 8. A lower layer of the control device is one of a USB (Universal Serial Bus) and an IEEE 1394 interface, and an interface of the processing device is a USB (Universal Serial Bus) and an IE.
The other of the IEEE 1394 interfaces, and the conversion module performs protocol conversion between the IEEE 1394 and the USB.
8. The data transfer system according to any one of 7 to 7. 9. A first instruction issuing table that defines a transfer of control from the middleware to the conversion module, as an instruction issuing table that defines a correspondence between an issued instruction and a jump destination thereof. The data transfer system according to claim 4, further comprising: a second instruction issuing table that defines a transfer of control from the conversion module to the bus control driver. 10. A data transfer method for a system including a control device and a processing device, wherein a conversion module for converting a data format between an upper layer and a lower layer of the control device is provided in the control device. A conversion device arranged between the control device and the processing device, wherein the conversion module of the control device receives data from a higher layer of the control device and corresponds to a lower layer of the control device. Converting the data into a lower layer of the control device, the lower layer of the control device receiving the data from the conversion module and sending the data to the conversion device; Receiving data transferred from a lower layer of the device, converting the data into a format corresponding to the interface on the processing device side, and transmitting the converted data to the processing device. Data transfer method, characterized in that. 11. A data transfer method for a system including a control device and a processing device, wherein a conversion module for converting a data format between an upper layer and a lower layer of the control device is provided in the control device. A conversion device is provided between the control device and the processing device, and the conversion device receives the data transferred from the processing device and converts the data into a format corresponding to an interface on the lower layer side of the control device. The step of sending to the control device above, the step of the lower layer of the control device receiving the data from the conversion device and supplying to the conversion module, the conversion module of the control device, Receiving data from a lower layer, converting the data into a format corresponding to an upper layer of the control device, and then passing the data to an upper layer of the control device, Data transfer method according to claim and. 12. A data transfer method for a system including a control device and a processing device, wherein a conversion module for converting a data format between an upper layer and a lower layer of the control device is provided in the control device. A conversion device arranged between the control device and the processing device, wherein the conversion module of the control device receives data from a higher layer of the control device and corresponds to a lower layer of the control device. The step of passing the converted data to the lower layer of the control device, the lower layer of the control device receiving the data converted by the conversion module and sending the data to the conversion device; and the conversion device, Receiving data transferred from a lower layer of the control device, converting the data into a format corresponding to an interface on the processing device side, and then sending the data to the processing device, The conversion device receives the data transferred from the processing device, converts the data into a format corresponding to the interface of the lower layer of the control device, and sends the converted data to the processing device; and the lower layer of the control device, Receiving the data transferred from the conversion device and supplying the data to the conversion module, the conversion module of the control device receiving data from a lower layer of the control device and corresponding to an upper layer of the control device. Converting the data into a format and delivering the data to an upper layer of the control device. 13. The upper layer of the control device, wherein a lower layer of the control device has bus control hardware including a physical layer, and a bus control driver made of software for controlling the bus control hardware. Includes middleware that performs protocol control and an application that bears a user interface, and the conversion module is an interface between an upper layer and a lower layer of the control device between the middleware and the bus control driver. The data transfer method according to any one of claims 10 to 12, wherein protocol conversion between the two is performed. 14. The bus comprising the bus control hardware connected to the lower layer of the control device and the processing device via transmission means, and software for controlling the bus control hardware. Control driver,
14. A conversion module, the conversion module of the conversion device performing protocol conversion between a lower layer of the control device and an interface of the processing device. The data transfer method described in 1. 15. The conversion module receives a packet from an upper layer of the control device, creates a packet to which a header corresponding to a lower layer of the control device is added, and supplies the packet to a lower layer of the control device. And a step in which the conversion device receives a packet transferred from a lower layer of the control device, removes the header added by the conversion module from the packet, and outputs the packet in a format output by an upper layer module of the control device. The data transfer method according to any one of claims 10 to 14, further comprising: a converting step, and a step in which the converting device supplies the converted packet data to the processing device. 16. The converting device adds a header corresponding to a lower layer of the control device to a packet transferred from the processing device, and the converting device adds the header-added packet to the packet. Supplying to a lower layer of the control device, a lower layer of the control device, passing a packet transferred from the conversion device to the conversion module, the conversion module, from the lower layer of the control device 16. The packet data obtained by removing the added header from the packet according to claim 10, the step of supplying the packet data to an upper layer of the control device, the data according to any one of claims 10 to 15. Transfer method. 17. A lower layer of the control device is one of a USB (Universal Serial Bus) and an IEEE 1394 interface, and an interface of the processing device is a USB (Universal Serial Bus) and an IE.
17. The data transfer method according to claim 10, wherein the conversion module is the other of the EE1394 interfaces, and the conversion module performs protocol conversion between the IEEE1394 and the USB. 18. An instruction issue table that defines the transfer of control from the middleware to the conversion module, as an instruction issue table that defines the correspondence between the issued instruction and its jump destination, and the conversion module to the bus. An instruction issue table that defines the transfer of control to the control driver,
14. The data transfer method according to claim 13, wherein control is transferred between the middleware and the conversion module, and between the conversion module and the bus control driver in the control device via the. 19. A control device connected to a processing device through a conversion device, wherein the conversion device converts data passed from a lower layer of the control device into a format corresponding to an interface on the processing device side. And then sending to the processing device, the control device comprises a conversion means for converting the data format between the upper layer and the lower layer of the control device, the conversion means of the control device is A unit for receiving data from an upper layer of the control device and converting the data into a format compatible with a lower layer of the control device, and delivering the data to a lower layer of the control device, wherein the lower layer of the control device is the A control device comprising means for sending data from the conversion device of the control device to the conversion device. 20. A control device connected to a processing device via a conversion device, wherein the conversion device converts data transferred from the processing device into a format corresponding to an interface of a lower layer of the control device. Which is transmitted to the control device above, the control device comprises a conversion means for converting a data format between an upper layer and a lower layer of the control device, and the lower layer of the control device is the conversion device. Means for receiving the data transferred from the controller and supplying it to the conversion means, wherein the conversion means of the control device converts data from a lower layer of the control device into a format corresponding to an upper layer of the control device. In addition, the control device is provided with means for delivering to the upper layer of the control device. 21. A control device connected to a processing device via a conversion device, wherein the conversion device converts data transferred from a lower layer of the control device into a format corresponding to an interface on the processing device side. After converting and sending to the processing device,
After converting the data from the processing device into a format corresponding to the interface of the lower layer of the control device, the data is sent to the control device, and the control device is provided between the upper layer and the lower layer of the control device. A conversion unit for converting the data format, wherein the conversion unit of the control device receives data from an upper layer of the control device and converts it into a format compatible with a lower layer of the control device; Means for delivering to the lower layer of the control device, and means for delivering data from the lower layer of the control device to a format corresponding to the upper layer of the control device, and then delivering the data to the upper layer of the control device. The lower layer of the control device receives the data converted by the conversion means of the control device and sends the data to the conversion device, and receives the data transferred from the conversion device to control the data. And a means for supplying to said converting means location, the control apparatus characterized by. 22. A conversion device connected to the control device according to claim 19, wherein the conversion device converts data from a lower layer of the control device to the processing device side. Of the data is transferred to the processing device after being converted into a format corresponding to the interface of the control device, and the data transferred from the processing device is converted to a format corresponding to the interface of the lower layer of the control device and then sent to the control device. A conversion device provided with a means for performing. 23. A program to be executed by a computer constituting a control device connected to a processing device via a conversion device, wherein the conversion device processes the data passed from a lower layer of the control device by the processing. After converting to a format corresponding to the interface on the device side and sending it to the processing device, the control device has a conversion module for converting the data format between the upper layer and the lower layer of the control device. A process of receiving data from the upper layer of the control device in the conversion module, converting the data into a format corresponding to a lower layer of the control device, and then passing the data to a lower layer of the control device; A process of receiving data from the conversion module in the layer and passing the data to the conversion device; Beam. 24. A program to be executed by a computer constituting a control device connected to a processing device via a conversion device, wherein the conversion device transfers data from the processing device to an interface of a lower layer of the control device. After converting to a corresponding format, the data is sent to the control device, and the control device includes a conversion module that converts a data format between an upper layer and a lower layer of the control device, and a lower module of the control device. A process of receiving data from the conversion device in a layer and supplying the data to the conversion module; A program that causes a computer constituting the control device to execute the process of converting to the above and passing it to the upper layer of the control device. 25. A program to be executed by a computer constituting the conversion device connected between the control device according to claim 23 and the processing device, the program being transferred from a lower layer of the control device. A program for causing a computer constituting the conversion device to execute a process of converting data into a format corresponding to an interface on the processing device side and transmitting the converted data to the processing device. 26. A program to be executed by a computer constituting the conversion device connected between the control device according to claim 24 and the processing device, wherein the data from the processing device is stored in the control device. A program for causing a computer constituting the conversion device to execute a process of converting the data into a format corresponding to an interface of a lower layer of the above and transmitting the converted data to the control device.