JP2003115890A - Protocol conversion device, communication device, communication program storage medium and communication system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To attain miniaturization and reduction of costs in a protocol conversion device or the like locate between a personal computer (PC) and a portable telephone set (MS), for example, for mutually converting communication systems (USB system and PDC system, for example). SOLUTION: A radio protocol packet is packed in a USB protocol header/ footer as a whole or only by detaching the USB protocol header/footer, the radio protocol packet is generated.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a personal computer and a mobile telephone, for example, when a mobile telephone is connected to the personal computer to communicate with the outside, between two devices having communication modes different in protocol from each other. An intervening protocol conversion device for converting the protocol of the data packet flowing between the two devices,
A communication device adapted to the protocol conversion device for communicating with the outside, a communication program storage medium storing a communication program for operating a computer as the communication device, and a function for communicating with the outside while performing protocol conversion internally. The present invention relates to a communication system having the same and a communication device which has a function of a protocol conversion device therein and communicates with the outside.

[0002]

2. Description of the Related Art Conventionally, a system for performing communication between devices has been widely known, and when these devices have communication forms according to different protocols, a protocol conversion device is provided between the devices. Sometimes. For example, consider communication between a personal computer and a mobile phone. Wireless communication is performed between the mobile phone and a third device other than the personal computer considered here. Here, the mobile phone transmits data to the mobile phone from the personal computer or receives data from the outside. Consider sending data to a personal computer.

In a mobile phone, as an example, PDC (Pe
Communication is performed in accordance with the communication standard of the rsonal digital cellular (USB) system.
communication is performed according to the communication standard of the Rial Bus) method. Therefore, as described above, a personal computer and a mobile phone are connected to form a kind of communication system, and wireless communication is performed from the communication system to the outside (third device) or is transmitted wirelessly from the outside. When receiving the received data, the personal computer handles a data packet having a data format conforming to the communication standard of the PDC system, which is obtained by the mobile telephone between the personal computer and the mobile telephone. If you want to convert data packets with a data format that conforms to the USB communication standard and send the data created or edited on the personal computer side to the outside via the mobile phone, use the personal computer side. The generated data packet conforming to the USB standard is transferred to the PDC communication standard. It is necessary to deploy a protocol converter for converting compliant data packets.

A data packet is composed of user data, which is data originally desired to be transmitted and received, and protocol data such as a header and a footer which comply with communication standards.
In the above protocol conversion device, when a data packet conforming to the PDC communication standard is transmitted from the mobile phone side to the personal computer, the protocol data conforming to the PDC communication standard that composes the data packet is transmitted. By removing the user data, the user data is added with protocol data conforming to the USB communication standard this time to generate a data packet conforming to the USB communication standard, and the generated data packet is Send to a personal computer.

On the other hand, in the opposite direction, when a data packet conforming to the USB communication standard is transmitted from the personal computer to the mobile phone, the protocol conversion device uses the data packet to perform the USB communication. The user data is taken out by removing the protocol data conforming to the standard, and this time, the protocol data conforming to the communication standard of the PDC system is added to the user data to generate a data packet conforming to the communication standard of the PDC system. , And transmits the generated data packet to the mobile phone.

As described above, by disposing the protocol conversion device for converting the communication protocol as described above between the two devices that perform communication by different communication protocols conforming to different communication standards, different communication is performed. It becomes possible to perform communication between devices that communicate with each other according to a communication protocol conforming to the standard.

[0007]

By interposing the protocol conversion device as described above, it is possible to communicate between devices that communicate with different communication protocols. However, the conventional protocol conversion device has the above-mentioned structure. As described above, the user data is extracted by removing the protocol data conforming to the one communication standard from the data packet conforming to the one communication standard, and the extracted user data is replaced with the protocol data conforming to the other communication standard. It requires a complicated process of generating a data packet conforming to the other communication standard by adding it, and normally, the protocol converter is equipped with hardware that performs communication conforming to one communication standard, and the other. In addition to hardware that communicates in accordance with the communication standards of The data packet received by the CPU is converted as described above, and a CPU and a memory for storing a program executed by the CPU are required, resulting in a complicated device configuration, which leads to an increase in size and cost of the device. There is.

In view of the above circumstances, the present invention operates a protocol conversion device that is downsized and reduced in cost, a communication device that is compatible with the protocol conversion device, and a computer as a communication device that is compatible with the protocol conversion device. Communication program storage medium storing a communication program for communication, a communication system including such a communication device or a communication program storage medium and a protocol conversion device, and communication including a function of such a protocol conversion device The purpose is to provide a device.

[0009]

The protocol conversion device of the present invention which achieves the above object is compliant with the first communication standard in which protocol data compliant with the first communication standard is added to user data. A first transmission / reception driver for transmitting / receiving a data packet and a second transmission / reception driver for transmitting / receiving a data packet conforming to the second communication standard, in which protocol data conforming to the second communication standard is added to user data By receiving a data packet conforming to the first communication standard received by the first transmission / reception driver and adding protocol data conforming to the second communication standard to the received data packet. Generates a data packet that conforms to the communication standard and passes it to the second transmission / reception driver for transmission from the second transmission / reception driver. , A second communication standard in which protocol data conforming to the first communication standard is added to user data received by the second transmission / reception driver, and protocol data conforming to the second communication standard is further added. A data packet conforming to the first communication standard is received, and the protocol data conforming to the second communication standard is removed from the received data packet, whereby the protocol data conforming to the first communication standard is added to the user data.
And a protocol assembly / dismounting unit for taking out a data packet conforming to the first communication standard and passing the data packet to the first transmission / reception driver for transmission from the first transmission / reception driver.

The protocol conversion device of the present invention only adds or removes protocol data conforming to the second communication standard to or from a data packet.
Do not add or remove protocol data that complies with the communication standard of. From this, the circuit configuration can be greatly simplified, which greatly contributes to downsizing and cost reduction of the device.

Here, the protocol conversion device of the present invention is further selected from a plurality of types of communication standards.
The first transmission / reception driver is provided with a first protocol data conforming to the first communication standard set by the standard setting unit, and the first transmission / reception driver includes a standard setting unit for setting a communication standard of a type. A data packet conforming to the first communication standard is transmitted and received.

As described above, the versatility can be improved by allowing the above-mentioned first communication standard to be selected from a plurality of types of communication standards.

In the protocol conversion device of the present invention configured so that the first communication standard can be selected from a plurality of types of communication standards, the standard setting section stores setting standard data representing the communication standard to be set. Has a register
The data packet received by the second transmission / reception driver, in which the protocol data conforming to the second communication standard is added to the setting standard data, receives the setting standard data from the data packet, and sets the setting standard register. Alternatively, the standard setting unit sets the communication standard based on the signal set by the protocol conversion device itself, and the second transmission / reception driver sets the standard by the standard setting unit. It is also possible to transmit a data packet in which protocol data conforming to the second communication standard is added to setting standard data representing the established communication standard.

Whichever is adopted, information about the communication standard (first communication standard) by the first transmission / reception driver is shared between the second transmission / reception driver and the communication device of the other party who communicates. can do.

Further, in the protocol conversion device of the present invention, when the data packet received by the first transmission / reception driver is a data packet exceeding a predetermined length, the protocol assembling / disassembling unit divides the data packet into a plurality of parts. Each part is divided and a data packet conforming to the second communication standard is generated for each part, and each part obtained by dividing the data packet conforming to the first communication standard received by the second transmission / reception driver is divided into a plurality of parts. It is preferable to restore the original data packet conforming to the first communication standard from a plurality of data packets used as user data.

In this case, the data longer than the maximum length of the data packet which can be handled by the second communication standard is converted into the first data packet.
The data packet format conforming to the communication standard can be handled basically without breaking it.

Further, the communication device of the present invention which achieves the above object, in a communication device for communicating with the outside, receives user data and adds protocol data conforming to the first communication standard to the user data. Generate a data packet conforming to the first communication standard, receive the data packet in which the protocol data conforming to the first communication standard is added to the user data, remove the protocol data from the data packet, and take out the user data. By receiving the first drive means and the data packet compliant with the first communication standard generated by the first drive means, and adding protocol data compliant with the second communication standard to the data packet, The data packet that complies with the second communication standard is generated, and the first communication standard is added to the user data. A data packet conforming to the second communication standard, in which protocol data conforming to the second communication standard is further added to a data packet conforming to the first communication standard in which the conforming data is added, is received. Second drive means and second drive means for removing the data packet conforming to the first communication standard by passing the protocol data conforming to the second communication standard out of the data packet and passing the data packet to the first drive means. A communication unit that receives a data packet conforming to the second communication standard from the outside and transmits the data packet to the outside, and also receives a data packet conforming to the second communication standard from the outside and passes the data packet to the second drive means. It is characterized by that.

The communication device of the present invention has the above-mentioned configuration, and by interposing the protocol conversion device of the present invention, it is possible to communicate with the outside in a communication system conforming to the above-mentioned first communication standard. it can.

Here, in the communication device of the present invention,
The second drive means generates a data packet in which protocol data conforming to the second communication standard is added to setting standard data representing one type of communication standard selected from a plurality of communication standards. It is preferably passed to the communication unit.

In this case, by combining the above-described protocol conversion device having a register for storing the setting standard data, the communication device and the protocol conversion device can share the information about the first communication standard. it can.

Further, in the communication device of the present invention, as the first drive means, there are provided a plurality of types of first drive means each having a plurality of types of communication standards as the first communication standards. Standard setting for activating the first drive means in accordance with setting standard data received from the outside and representing one type of communication standard selected from the plurality of types of communication standards. It is also a preferable embodiment to include means.

In this case, by combining with the protocol conversion device of the type that sets the first communication standard based on the signal set by the protocol conversion device itself, the communication device and the protocol conversion device are connected to each other by the first communication standard. It is possible to share information regarding the communication standard of No. 1.

In the communication device of the present invention, when the second drive means receives the data packet conforming to the first communication standard from the first drive means, the data packet exceeds a predetermined length. Then, the data packet is divided into a plurality of parts, a data packet conforming to the second communication standard is generated for each part, and the data packet is passed to the communication unit.
The original data packet conforming to the first communication standard is selected from the plurality of data packets received from the communication unit and each of which is made up of a plurality of divided data packets conforming to the first communication standard as user data. It is preferable that the data is restored and passed to the first driver means.

In this case, in the protocol converter of the present invention, when the above-mentioned data packet received by the first transmission / reception driver is a data packet exceeding a predetermined length, the data packet is divided into a plurality of parts. A data packet conforming to the second communication standard is generated for each part, and the data packet conforming to the first communication standard received by the second transmission / reception driver is divided into a plurality of user data. The second communication standard which is the communication standard of this communication device by combining with the protocol conversion device having the function of restoring the original data packet conforming to the first communication standard from the plurality of data packets For data exceeding the maximum length of the data packet that can be handled by, the protocol conversion device intervenes to comply with the first communication standard. It can be transmitted and received as one data packet compliant.

The communication program stored in the communication program storage medium of the present invention which achieves the above object is executed in a computer to operate the computer as a communication device for communicating with the outside. A communication program for receiving user data, adding protocol data conforming to the first communication standard to the user data, and generating a data packet conforming to the first communication standard. First drive means for receiving a data packet formed by adding protocol data conforming to a communication standard, removing the protocol data from the data packet and extracting user data, and first communication generated by the first drive means. Receives standard-compliant data packets and A first communication standard in which a data packet conforming to the second communication standard is generated by adding protocol data conforming to the second communication standard, and data conforming to the first communication standard is added to user data. A data packet conforming to the second communication standard is further added to the data packet conforming to the second communication standard, the data packet conforming to the second communication standard is received, and the protocol data conforming to the second communication standard is received from the data packet. By removing the second data packet conforming to the first communication standard and passing it to the first drive means.
And a drive means of.

The communication program stored in the communication program storage medium of the present invention is executed by a computer having a function of performing communication in conformity with the above-mentioned second communication standard, thereby causing the computer to operate the communication device of the present invention. Can function as.

The communication program stored in the communication program storage medium of the present invention includes all modes corresponding to the various modes of the communication apparatus of the present invention described above.

Further, the first communication system of the communication systems of the present invention which achieves the above-mentioned object conforms to the first communication standard in which protocol data conforming to the first communication standard is added to user data. A first transmission / reception driver for transmitting / receiving a compliant data packet, and a second transmission / reception for user data.
Second transmission / reception driver that transmits / receives a data packet conforming to the second communication standard, in which protocol data conforming to the second communication standard is added, and conforms to the first communication standard received by the first transmission / reception driver. From the second transmission / reception driver by generating a data packet conforming to the second communication standard by adding protocol data conforming to the second communication standard to the received data packet. Of the protocol data conforming to the first communication standard is added to the user data received by the second transmission / reception driver for transmission to the user data, and further protocol data conforming to the second communication standard. Is added, the data packet conforming to the second communication standard is received, and the second data packet is received from the received data packet. By removing the protocol data conforming to a communication standard, protocol data conforming to the first communication standard is added to the user data, first
Communication is performed between a protocol conversion device having a protocol assembly / dismounting unit that takes out a data packet conforming to the communication standard of No. 1 and passes it to the first transmission / reception driver for transmission from the first transmission / reception driver, and the outside. A communication device, which receives user data and adds protocol data conforming to the first communication standard to the user data to generate a data packet conforming to the first communication standard, and the user data including the first communication standard. A first drive means for receiving a data packet to which protocol data conforming to the standard is added and removing the protocol data from the data packet to take out user data;
A data packet conforming to the second communication standard by receiving a data packet conforming to the first communication standard generated by the drive means and adding protocol data conforming to the second communication standard to the data packet. And the protocol data conforming to the second communication standard is further added to the data packet conforming to the first communication standard, in which the data conforming to the first communication standard is added to the user data. The data packet conforming to the second communication standard is received, and the second
By removing protocol data conforming to the first communication standard and extracting a data packet conforming to the first communication standard and passing the data packet to the first drive means, and second communication means from the second drive means. And a communication unit that receives a data packet compliant with the standard and transmits the data packet to the outside, and also receives a data packet compliant with the second communication standard from the outside and passes the data packet to the second drive means. It is characterized by doing.

That is, the first communication system of the present invention comprises a combination of the protocol conversion device of the present invention and the communication device of the present invention, and performs communication by a communication system conforming to the second communication standard. The device can be used to communicate with the outside in a communication format conforming to the first communication standard with a protocol conversion device interposed.

In this case, the first communication system of the present invention enjoys the advantages of the protocol conversion device of the present invention that the circuit scale is small, downsizing and cost reduction are achieved.

Each of the protocol conversion device and the communication device constituting the first communication system of the present invention includes all the various forms of the protocol conversion device of the present invention and the various forms of the communication device of the present invention. Is.

Furthermore, the second communication system of the communication systems of the present invention that achieves the above object conforms to the first communication standard in which protocol data conforming to the first communication standard is added to user data. A first transmission / reception driver for transmitting / receiving a compliant data packet, and a second transmission / reception for transmitting / receiving a data packet compliant with the second communication standard, in which protocol data compliant with the second communication standard is added to user data The driver and the first transmission / reception driver receive the data packet conforming to the first communication standard, and the received data packet further includes a second packet.
By adding protocol data conforming to the second communication standard to generate a data packet conforming to the second communication standard and transmitting the second data packet for transmission from the second transmission / reception driver.
The protocol data conforming to the first communication standard is added to the user data received by the second transmission / reception driver, and the protocol data conforming to the second communication standard is further added. By receiving the data packet conforming to the second communication standard and removing the protocol data conforming to the second communication standard from the received data packet, the protocol data conforming to the first communication standard is added to the user data. , Takes out a data packet conforming to the first communication standard,
A protocol conversion device having a protocol assembling / disassembling unit for passing from the first transmission / reception driver to the first transmission / reception driver, and by being executed in the computer, communication between the computer and the outside is performed. A communication program storage medium in which a communication program for operating as a communication device is stored, which receives user data and adds protocol data conforming to the first communication standard to the user data to comply with the first communication standard. First, a data packet is generated, user data is added with protocol data conforming to the first communication standard, a data packet is received, the protocol data is removed from the data packet, and user data is extracted.
Drive means for receiving the data packet conforming to the first communication standard generated by the first drive means and adding protocol data conforming to the second communication standard to the data packet Generates a data packet that conforms to the communication standard, and uses it for user data first.
Data conforming to the second communication standard, in which protocol data conforming to the first communication standard is further added to data packets conforming to the first communication standard A second drive means for receiving the packet and removing the protocol data conforming to the second communication standard from the data packet so as to extract the data packet conforming to the first communication standard and pass it to the first drive means. It is characterized by comprising a communication program storage medium in which the communication program is stored.

That is, the second communication system of the present invention comprises a combination of the protocol conversion device of the present invention and the communication program storage medium of the present invention, and constitutes the second communication system of the present invention. The computer can be caused to function as the communication device of the present invention by executing the communication program stored in the program storage medium on a computer having a function of performing communication conforming to the above-mentioned second communication standard. By the computer functioning as a communication device and the protocol conversion device,
The above-described first communication system can be realized.

The second communication system also includes all the various forms of the protocol conversion device of the present invention and the various forms of the communication program stored in the communication program storage medium of the present invention.

Further, the present invention may be one in which the protocol conversion device, the communication device, and the like are configured as one device. Here, a device configured as such a device is also referred to as a communication device.

The communication apparatus of the present invention configured as described above receives and receives a data packet conforming to the first communication standard in which protocol data conforming to the first communication standard is added to user data. The data packet conforming to the second communication standard is added to the data packet conforming to the first communication standard to generate and output the data packet conforming to the second communication standard, and the first packet is added to the user data. A data packet compliant with the second communication standard, in which protocol data compliant with the communication standard is further added and protocol data compliant with the second communication standard is further added, and second communication is performed from the received data packet. By removing the protocol data that conforms to the standard, the protocol that conforms to the first communication standard can be added to the user data. Data is being added, the first
And a protocol conversion unit that extracts and outputs a data packet that conforms to the first communication standard, and receives a data packet that conforms to the first communication standard from the outside and passes it to the protocol conversion unit. A transmitter / receiver that receives a data packet conforming to the standard and transmits it to the outside, and receives user data, adds protocol data conforming to the first communication standard to the user data, and further conforms to a protocol conforming to the second communication standard. By adding the data, a data packet conforming to the second communication standard is generated and passed to the protocol converting unit, and the protocol converting unit adds the protocol data conforming to the first communication standard to the user data. , A second communication in which protocol data conforming to the second communication standard is further added A protocol processing unit that receives a data packet conforming to the case, removes protocol data conforming to the second communication standard from the received data packet, and further removes protocol data conforming to the first communication standard to extract user data. It is characterized by having and.

In this case, the transmission / reception unit wirelessly receives a data packet conforming to the first communication standard from the outside and transfers it to the protocol conversion unit, and at the same time, the protocol conversion unit transmits data conforming to the first communication standard. It is preferable that the packet is received and wirelessly transmitted to the outside.

[0038]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below.

FIG. 1 is an external view of an embodiment of the communication system of the present invention.

Here, the personal computer 100
, A mobile phone 300, and a protocol conversion device 600 arranged in the middle of a communication cable 500 connecting them.
It is shown. The protocol conversion device 600 may be arranged in the middle of the communication cable 500 as shown here, or may be in the form of a card and inserted into the personal computer 100, or may be a personal computer. It may have the form of a circuit board mounted inside the computer 100. Here, as shown in FIG.
Communication cable 50 that connects between the mobile phone 300 and
The description will be made assuming that the protocol conversion device 600 is arranged in the middle of 0.

The personal computer 100 constituting the communication system shown in FIG. 1 operates as a communication device by executing a communication program therein.

This personal computer 100 has a U
It has a function of performing communication by a communication method conforming to the SB standard (an example of the second communication standard referred to in the present invention),
On the other hand, the mobile phone 300 has a function of performing communication with a communication standard conforming to the PDC standard (an example of the first communication standard according to the present invention), and the protocol conversion device 60.
When the personal computer 100 transmits a data packet conforming to the USB standard, the number 0 converts the data packet into a data packet conforming to the PDC standard and transmits the data packet to the mobile phone 300, and the mobile phone 300 conforms to the PDC standard. When a compliant data packet is transmitted, the data packet is converted into a USB standard compliant data packet, and the personal computer 1
It has a function of transmitting to 00. Details will be described later.

This computer system 100 has a CP
Main unit 10 including U, RAM, hard disk, etc.
1. A CRT display 102 for displaying a screen on a display screen 102a according to an instruction from the main body 101, a keyboard 103 for inputting a user's instruction and character information to this computer system, and an arbitrary position on the display screen 102a are designated. As a result, a mouse 104 for inputting an instruction corresponding to the icon or the like displayed at that position is provided.

The external appearance of the main body 101 is such that a floppy disk 212 and a CDROM 210 (not shown in FIG. 1; see FIG. 2) are removably loaded, and a floppy disk loading port 101a and a CDROM loading port 10 are provided.
1b which has a floppy disk driver 224 and a CDROM driver 22 for driving a loaded floppy disk or CDROM 210 therein.
5 (see FIG. 2) is also incorporated.

Here, an example of the communication program referred to in the present invention is stored in the CDROM 210. This CD
The ROM 210 moves from the CDROM loading port 101b to the main body 1
It is loaded in 01, and by the CDROM driver 225,
The communication program stored in the CDROM 210 is installed in the hard disk of the computer system 100.

FIG. 2 is a hardware configuration diagram of the computer system whose appearance is shown in FIG.

Here, a central processing unit (CPU) 2
21, RAM 222, hard disk controller 22
3, floppy disk driver 224, CDROM driver 225, mouse controller 226, keyboard controller 227, display controller 22
8 and communication interface 229 are shown,
They are connected to each other by a bus 220.

Floppy disk driver 224, CD
The ROM driver 225 includes the floppy disk 212 and the CDROM 2 as described with reference to FIG.
Floppy disk 21 loaded with 10 loaded
2. The CDROM 210 is accessed.

Further, here, the hard disk 21 accessed by the hard disk controller 223
1, the mouse 104 controlled by the mouse controller 226, the keyboard 103 controlled by the keyboard controller 227, and the CRT display 102 controlled by the display controller 228 are also shown.

The communication interface 229 is hardware having a function of communicating between the personal computer 100 and the outside (here, directly the protocol conversion device 600) in accordance with the USB standard.

As described above, the CDROM 210 stores an example of the communication program according to the present invention.
The DROM driver 225 causes the CDROM 210
The communication program is read from and is stored in the hard disk 211 by the hard disk controller 223 via the bus 220. In actual execution, the communication program in the hard disk 211 is R
It is loaded onto the AM 222 and executed by the CPU 221.

FIG. 3 is a schematic diagram of the communication program stored in the CDROM.

The CDROM 210 stores a communication program 250 including a communication driver 251 and a USB driver 252. The communication driver 251 and the USB driver 252 are program components that constitute the communication program of the present invention and correspond to examples of the first transmission / reception driver and the second transmission / reception driver, respectively. Details of those actions will be described later.

In the following, a description will be given of a communication system as a comparative example to be compared with the present invention, once leaving the description of the embodiments of the present invention. Even in the conventional method, the external configuration and the hardware configuration of the personal computer are the same as those of the present embodiment shown in FIGS.

FIG. 4 is an explanatory view of the operation of the protocol conversion device including the internal structure of the protocol conversion device constituting the conventional communication system. FIG. 5 is a data packet input / output to / from the protocol conversion device shown in FIG. FIG. 6 is a diagram showing a flow of the protocol of FIG. 6, and FIG. 6 is an explanatory diagram of a communication function portion of a personal computer which constitutes a conventional communication system.

A conventional protocol conversion device 70 shown in FIG.
0 is an LSI 710 and a CPU 72 as main components.
0 and ROM 730. For LSI710, US
A data packet conforming to the B standard (here, this is UB
A USB transmission / reception driver 711, which is hardware responsible for transmitting / receiving protocol packets, and hardware responsible for transmitting / receiving data packets (herein referred to as wireless protocol packets) conforming to a wireless communication standard (herein, PDC standard). A communication unit transmission / reception driver 712, which is ware, is installed.

The CPU 720 executes the program stored in the ROM 730 to convert between the communication protocol packet and the USB protocol packet. That is, when a wireless protocol packet is transmitted from a mobile phone (hereinafter, abbreviated as MS) via the 16-core cable 500a, the wireless protocol packet is received by the communication unit transmission / reception driver 712. The wireless protocol packet is transferred to the CPU 720, and in the CPU 720, the wireless protocol packet is converted into the USB protocol packet by executing the program stored in the ROM 730, and the USB protocol packet obtained by the conversion is transferred to the USB transmission / reception driver 711. The USB transmission / reception driver 711 sends the received USB protocol packet to the USB cable 50.
0b to a personal computer (hereinafter referred to as P
(Sometimes abbreviated as C).

On the other hand, when a USB protocol packet is transmitted from the PC via the USB cable 500b, the USB protocol packet is received by the USB section transmission / reception driver 711 and passed to the CPU 720. The CPU converts the received USB protocol packet into a wireless protocol packet by executing the program stored in the ROM 730, and passes the converted wireless protocol packet to the communication unit transmission / reception driver 712. The wireless protocol packet passed to the communication unit transmission / reception driver 712 is the communication unit transmission / reception driver 71.
2, the data is transmitted to the MS via the 16-core cable 500a.

Here, the PC and the USB section transmission / reception driver 7
The USB protocol packet communicated with
It is a data packet in which a USB protocol header UH and a USB protocol footer UF, which are protocol data conforming to the USB standard, are added to user data that is originally required to be transmitted and received. The wireless protocol packets that are communicated are
It is a data packet to which user data and a wireless protocol header H and a wireless protocol footer F, which are protocol data conforming to the wireless communication standard (here, PDC standard), are added. Therefore, the CPU 720 uses the USB
When the USB protocol packet is delivered from the unit transmission / reception driver 711, the USB protocol header UH and the USB protocol footer UF are removed from the USB protocol packet to extract the user data, and the extracted user data includes the wireless protocol header H this time. A wireless protocol packet is generated by adding the wireless protocol footer L, and the generated wireless protocol packet is passed to the communication unit transmission / reception driver 712. On the other hand, when the wireless protocol packet is passed from the communication unit transmission / reception driver 712, the From the wireless protocol packet to the wireless protocol header H and the wireless protocol footer F
User data is taken out by removing and, and a USB protocol packet is generated by adding a USB protocol header UH and a USB protocol footer UF to the taken-out user data, and the generated USB protocol packet is transmitted / received by the USB section. The process of passing it to the driver 711 will be performed. This process is a fairly complicated process. Therefore, conventionally, as shown in FIG. 4, the protocol conversion device stores the CPU 720 and the program executed by the CPU 720 in the R memory.
The OM730 is mounted, which causes the protocol conversion device to become large and costly.

Here, the flow of the data protocol passing through the protocol converter 700 shown in FIG. 4 will be described. As shown in FIG. 5, a wireless protocol packet in a format in which wireless protocol data (a wireless protocol header and a wireless protocol footer) is added to user data is wirelessly communicated between the MS base station and the MS, and the MS and the protocol are communicated with each other. The wireless protocol packet is communicated with the CPU in the conversion device 700 using the 16-core cable as a physical layer, and the CPU transmits the wireless protocol packet in which the wireless protocol data is added to the user data as described above and the user data. USB protocol data (USB
Conversion is performed between a USB protocol packet to which a protocol header and a USB protocol footer are added, and between the CPU and a USB driver in the PC, which will be described below, the USB protocol packet physically connects the USB cable. Sent as a layer.

In the PC (personal computer), when a USB protocol packet is transmitted from the protocol converter 700 (see FIG. 4), the transmitted USB protocol packet is as shown in FIG. 6 (A). Communication interface 229 as hardware
USB driver 2 received (see also FIG. 3)
Handed over to 52. This USB driver 252 is
6 is a communication program executed by the CPU 221 (see FIG. 3) of C.
As shown in (B), the USB protocol data (USB protocol header UH and USB protocol footer UF) is removed from the received USB protocol packet to extract the user data, and the extracted user data operates on the OS. Passed to the application program.

On the other hand, when transmitting data from the PC to the outside, the USB driver 252 receives the user data from the application program side, and the received user data has USB protocol data (USB protocol header UH and USB protocol footer UF).
Is added to generate a USB protocol packet. The generated USB protocol packet is passed to the communication interface 229 as hardware, and the communication interface 229 sends the USB protocol packet to the US.
Send to the protocol conversion device via the B cable.

The conventional communication system is the same as that shown in FIGS.
As described above, the protocol conversion device 700 requires the CPU and the ROM for the conversion process between the USB protocol packet and the wireless protocol packet. Larger size and higher cost were incurred. 1 to 3
The present embodiment, which will be described with reference to and further detailed below, solves this point.

FIG. 7 is a diagram for explaining the operation of the protocol conversion device including the internal structure of the protocol conversion device that constitutes the communication system as the embodiment of the present invention shown in FIG. It is a figure corresponding to.

The protocol conversion apparatus according to the embodiment of the present invention shown in FIG. 7 is, like the protocol conversion apparatus 700 shown in FIG. 4, a USB section transmission / reception driver 611 for transmitting / receiving USB protocol packets in the LSI 610.
And a communication unit transmission / reception driver 612 for transmitting and receiving wireless protocol packets. However, the CPU 720 provided in the protocol conversion device 700 shown in FIG.
The ROM 730 is not provided, and instead of these, a USB protocol assembling / dismounting unit 613 is provided inside the LSI 610. US shown in FIG. 7
The processing by the B protocol assembling / disassembling unit is performed by the CPU 720 of the protocol conversion device 700 shown in FIG.
This is an extremely simple process as compared with the process performed in 1., and in the present embodiment, the USB protocol assembly / removal unit 6 is used.
As shown in FIG. 7, reference numeral 13 indicates L together with the USB section transmission / reception driver 611 and the communication section transmission / reception driver 612.
It is installed inside SI610.

This USB protocol assembling / disassembling unit 613 receives the received wireless protocol packet when the wireless protocol packet transmitted from the MS is received by the communication unit transmission / reception driver 612, and the user data constituting the wireless protocol packet. And the wireless protocol data (the wireless protocol header H and the wireless protocol footer F) are regarded as one piece of data without distinction, and the USB protocol data (U
SB protocol header UH and USB protocol footer U
F) is added, a USB protocol packet is generated by this, and the generated USB protocol packet is
It is passed to the USB section transmission / reception driver 611. The USB section transmission / reception driver 611 transmits the received USB protocol packet to the PC.

On the other hand, here, from the PC, wireless protocol data (wireless protocol header H and wireless protocol footer F) is added to the user data as shown in the figure, and further USB protocol data (USB protocol header UH and USB protocol). When the USB protocol packet configured by adding the footer UF) is transmitted and the USB protocol packet is received by the USB section transmission / reception driver 611 of the protocol conversion device 600, the USB protocol assembly / disassembly section 613 receives the received USB. The protocol packet is received, and the wireless protocol packet is extracted by removing the USB protocol data (USB protocol header UH and USB protocol footer UF) from the USB protocol packet, Passing a wireless protocol packet taken out of the communication unit transmitting and receiving driver 612. The communication unit transmission / reception driver 612 transmits the received wireless protocol packet to the MS.

As described above, in the USB protocol assembling / disassembling unit 613, the USB protocol header UH and the USB protocol footer UF are added to the wireless protocol packet, and the USB protocol header UH and the USB protocol footer UF from the USB protocol packet are added. Removal is performed, but this process is
This is a simple process, which can be handled by hardware having a small circuit scale, can be incorporated in the LSI 610, and can achieve cost reduction and device miniaturization.

FIG. 8 is a schematic diagram showing a protocol flow of a data packet input / output to / from the protocol conversion device shown in FIG.

Between the MS base station and the MS, a wireless protocol packet in a format in which wireless protocol data (the wireless protocol header H and the wireless protocol footer F) is added to the user data is wirelessly communicated, and the MS and FIG. The wireless protocol packet is communicated with the LSI 610 of the protocol conversion device 600 shown in FIG. 1 by using the 16-core cable as a physical layer, and inside the LSI 610, the USB protocol data (USB protocol) for the wireless protocol packet is transmitted as described above. Header UH and USB
Protocol footer UF) and USB protocol data from USB protocol packet (USB protocol header UH and USB protocol footer UF)
Is removed, and between the LSI 610 and the USB driver in the PC, which will be described below,
A USB protocol packet in a format in which a wireless protocol packet is wrapped in USB protocol data is
Communication is performed using a cable as a physical layer.

The flow of the data packet in the PC will be described with reference to FIGS. 9 to 11 together with FIG.

FIG. 9 is an explanatory diagram of a communication function part of a personal computer (PC) which constitutes the communication system of this embodiment, FIG. 10 is a flowchart of the communication function part of the PC at the time of receiving a data packet, and FIG. Is the PC
3 is a flowchart of the communication function part of the above when transmitting a data packet.

As described above, from the protocol converter (LSI) via the USB cable 500b,
Wireless protocol packet to USB protocol header UH
When a USB protocol packet wrapped in the USB protocol footer UF is transmitted, the transmitted USB protocol packet is as shown in FIG.
Communication interface 229 as hardware shown in
Is received by the USB driver 252 as a component of the communication program (step a1 in FIG. 10).

In this USB driver 252, as shown in FIG.
As shown in (B), from the USB protocol packet in the format in which the wireless protocol header H and the wireless protocol footer F are added to the user data, and the USB protocol header UH and the USB protocol footer F are added to the user data, the USB protocol packet Header UH and US
The B protocol footer UH is removed, and the wireless protocol packet in the format in which the wireless protocol header H and the wireless protocol footer F are added to the user data is extracted (step a2 in FIG. 10), and the wireless protocol packet is passed to the communication driver 251. (FIG. 10, step a3). The communication driver 251 is also a component of the communication program.

In the communication driver 251, the wireless protocol header H and the wireless protocol footer F are removed from the received wireless protocol packet to extract the user data (step a4 in FIG. 10), and the extracted user data is stored in the application program. Passed to.

On the other hand, when transmitting data from the PC to the outside, the communication driver 251 receives the user data from the application program (step b1 in FIG. 11), and adds the wireless protocol header H and the wireless protocol footer F to the user data. A wireless protocol packet is generated by attaching (step b in FIG. 11).
2) Pass the generated wireless protocol packet to the USB driver (step b3 in FIG. 11). The USB driver 252 having received the wireless protocol packet further adds a USB protocol header UH and a USB protocol footer UF to the received wireless protocol packet.
Is attached to generate a USB protocol packet (step b4), and the generated USB protocol packet is passed to the communication interface 229. The communication interface 229 transmits the received USB protocol packet to the protocol conversion device 600 (see FIG. 7).

The communication system of the present embodiment has the above-described basic configuration, and as described above, it is not necessary to provide a CPU or ROM in the protocol conversion device, and downsizing and cost reduction can be realized. . In the communication system of the present embodiment, compared to the comparative example described with reference to FIGS. 4 to 7, the communication driver 251 which is a component of the communication program executed in the PC is increased. The increase in the number of programs does not involve additional parts on the hardware, and the processing by the communication driver 251 is simple, so the increase in the amount of programs is not so large.

Next, in addition to the basic first embodiment described above, the communication method between the MS and the communication unit transmission / reception driver 612 (see FIG. 7) of the protocol conversion device 600 conforms to a plurality of communication standards. A second embodiment configured so that it can be selected from the above communication methods will be described.

FIG. 12 is an explanatory diagram of a communication function portion of a personal computer (PC) which constitutes a second embodiment of the communication system of the present invention.

Here, the hard disk 211 of the PC
(See FIG. 2) Inside, for example, a communication driver for mounting / removing a wireless protocol header / footer conforming to the PDC standard, or a communication driver for mounting / removing a wireless protocol header / footer conforming to the PHS standard. And a plurality of types of communication drivers such as a communication driver for attaching / removing a wireless protocol header / footer conforming to the CDMA standard.

Here, in the second embodiment, of the plurality of types of communication drivers stored in the hard disk 211, information specifying the communication driver to be actually executed is received from the protocol conversion device side, and the loading means 254 is used. , The specified communication driver is loaded from the hard disk 211 to the RAM 222 for actual execution.
(See FIG. 2). Here, the loading means corresponds to an example of "standard setting means for activating the first driver means" of the communication device of the present invention.

FIG. 13 is a schematic diagram of a protocol conversion device which constitutes a second embodiment of the communication system described here.

The LSI 610 mounted on the protocol conversion device 600 shown here has two signal input terminals G fixed at the “H” level or the “L” level, respectively.
PI01 and GPI02 are provided, and this LSI 6
In 10, the two signal input terminals GPI01, G
The combination of the “H” level and the “L” level of the signal input from PI 02 indicates the communication method between the communication unit transmission / reception driver 612 and the MS shown in FIG. 7. That is, the communication unit transceiver unit driver 612 shown in FIG.
Communication with any of the PDC system, the PHS system, and the cdmaOne system is possible with the GPI0.
1, by setting the "H" level and the "L" level of GPI02, which communication method among these plural kinds of communication methods is used is determined.

FIG. 14 shows information indicating the states of the GPI01 and GPI02 at the "H" level and the "L" level, that is, the communication method between the protocol conversion device and the MS.
It is a figure which shows the USB protocol packet for transmitting to C.

When the PC and the protocol conversion device are connected by a cable, the USB transmission / reception driver 611 of the protocol conversion device 600 causes the GPI0 as shown in FIG.
1, a USB protocol packet in which a USB protocol header UH and a USB protocol footer UF are attached to a USB data portion including information indicating the “H” level and the “L” level of GPI02 is generated and transmitted to a PC.

FIG. 15 is a flowchart of the communication driver setting executed by the PC that has received the USB protocol packet as shown in FIG.

When the USB protocol packet shown in FIG. 14 is received by the communication interface 229 shown in FIG. 12 and passed to the USB driver 252, the USB data portion shown in FIG. The retrieved USB data portion is passed to the loading means 254.

In the loading means 254, the USB
Information indicating the states of GPI01 and GPI02 in the data part is acquired (step c1 in FIG. 15) and whether GPI01 is at the “H” level (step c2 in FIG. 15), or when GPI01 is at the “L” level, GPI02. Depending on whether or not is at the'H 'level (step c3 in FIG. 15), the corresponding communication driver is loaded (steps c4, c5, c6). This loaded communication driver will actually be executed.

According to the second embodiment described above with reference to FIGS. 12 to 15, the GPI01 and GPI02 have the “H” level and the “L” level without manufacturing a plurality of types of LSIs having different internal configurations. 'It is possible to deal with various types of communication methods only by setting the level.

16 and 17 show the LS in the protocol converter which constitutes the third embodiment of the communication system of the present invention.
It is a figure which shows the partial structure of I.

The configuration of the communication part of the PC in the third embodiment is similar to that of the above-described second embodiment and has the configuration shown in FIG. 12, but the difference from the second embodiment is that , Protocol converter (LS shown in FIG. 16 and FIG. 17)
The communication standard between the I610) and the MS is set on the PC side, not on the protocol converter side.

In the PC, when the communication standard of the MS (mobile phone) to be connected is set by, for example, an instruction from the user, the loading means 25 shown in FIG.
4 loads the communication driver according to the set communication standard.

The USB driver 252 generates a USB protocol packet in which information for specifying the communication standard and setting the protocol conversion device as the PC or a user who operates the PC desires is written, and the USB protocol packet is transmitted via the communication interface 229. The generated USB protocol packet is transmitted to the protocol conversion device.

FIG. 16 shows the data portion of the USB protocol packet transmitted from the PC to the protocol converter (the US protocol header / footer is not shown). LS
The I610 is provided with a serial device controller 614, which is provided with a register group including a plurality of registers in which the contents of the transmitted USB protocol packet are set.

Here, the USB protocol packet shown in FIG. 16 has a write / read address which is an address of any register in the register group and a write / read which indicates how many registers are set after the address. It has a data length and data actually set in these registers.

A USB protocol packet of this format is P
The serial device controller 6 is transmitted from C and received by the USB transmission / reception driver 611 of the LSI 610.
Sent to 14. The serial device controller 6
At 14, the contents of the USB protocol packet are recognized, and the designated data is written from the register of the designated address to the register of the designated data length. On the PC side, the data written in this register group can be read, and at that time, U
In the SB section transmission / reception driver 611, the US format shown in FIG. 16 is used.
A B protocol packet is generated and sent to the PC.

With this configuration, the functions of the LSI 610 can be set and changed from the PC side, and a plurality of registers can be collectively packaged by adopting the USB protocol packet of the format shown in FIG. It is possible to access by registering, and speeding up register access is also realized.

Here, as shown in FIG. 17, a transmission / reception protocol setting register exists in the register group of the serial device controller 614. On the other hand, LSI61
The communication unit transmission / reception driver 612 in 0 (see FIG. 7 together with FIG. 17) can operate in any communication method of the PDC method, the CDMA method, and the PHS method, and performs communication according to the setting of the transmission / reception protocol setting register. It is configured to send and receive with a protocol according to the scheme.

As described above, the communication system may be set on the PC side.

FIG. 18 is a diagram showing the internal structure of an LSI in a protocol conversion device constituting a fourth embodiment of the communication system of the present invention, and FIG. 19 is a data structure of data communicated via the LSI. FIG.

In the fourth embodiment, the USB protocol assembling / dismounting unit 613 in the LSI 10 has the above-mentioned USB protocol data (USB protocol header /
In addition to the function of attaching / removing the footer, the function shown in FIG. 18 is provided. That is, the USB protocol assembly / dismounting unit 613 includes the data length counting unit 6
131, first / last flag attaching / removing section 613
2 and a data division / assembly unit 6133.

As shown in FIG. 19, a wireless protocol packet having a data length of 300 bytes far exceeding the data length that can be handled by a USB protocol packet is transmitted from the MS and received by the communication section transmission / reception driver 612 of the LSI 610. Shall be done. At that time, the data length counting unit 6131 that constitutes the communication unit transmission / reception driver 612 counts the data length of the wireless protocol packet transmitted serially, and the data length within the data length that can be handled as a USB protocol packet (here (62 bytes), the data dividing / assembling unit 6133 is notified accordingly. Also,
The data length counting unit 6131 starts reception of the wireless protocol packet when starting reception of the wireless protocol packet, and ends reception of the wireless protocol packet when reception of the wireless protocol packet ends. Attach the top / final flag /
The removal unit 6132 is notified.

The data division / assembly unit 6133 sends the wireless protocol packet to the data length counting unit 61.
Delimited every 62 bytes according to the information from 31.
The final flag is transferred to the attachment / detachment unit 6132. The leading / final flag attaching / removing section 6132 includes
62 of the received 62 bytes of data
The byte data is the first 62 bytes of the wireless protocol packet.
For byte data, as shown in FIG.
Attach a flag that sets the first flag to "1" and the last flag to "0" to the 2-byte data, and attach the data that represents the data length (64 bytes in this case) to the middle 64-byte data that is neither the beginning nor the end. On the other hand, as shown in FIGS. 19B to 19D, a flag that sets both the first flag and the last flag to "0" is attached, and the data indicating the data length is attached to the data of the last part of the wireless protocol packet. For example, as shown in FIG. 19 (E), a flag having a leading flag of "0" and a final flag of "1" is attached and data representing the data length is attached.

Here, the data division / assembly unit 6133.
Indicates that the last part of the data has a specified data length (here, 64
19E, it has a function of padding nonsense data after the last part of the data to align it to the specified data length as shown in FIG. 19E. / Final flag attachment / detachment unit 6132 attaches information indicating the length of the effective data portion (here, 50 bytes) as information indicating the data length of the final portion.

When the data lengths are aligned in this way, only data having a fixed data length can be handled, and the data handling becomes simple.

The wireless protocol packet divided into a plurality of pieces as shown in FIGS. 19A to 19E in this manner has a USB protocol header / footer attached to each divided portion, and the USB protocol is added to each divided portion. Packets are generated, and the plurality of USB protocol packets are sequentially transmitted from the head side to the PC.

The configuration of the communication part of the PC is shown in FIG. 9, but the USB driver 251 removes the USB protocol header / footer from a plurality of USB protocol packets that are sequentially transmitted and connects the data. Thus, the original wireless protocol packet is reproduced, and the reproduced wireless protocol packet is passed to the communication driver 251.

When attempting to transmit user data having a data length exceeding the data length that can be handled as a USB protocol packet from the PC side, a wireless protocol packet having a long data length is generated by the communication driver 251. The USB driver 252 is passed to the USB driver 252 by the same process as that of the USB protocol assembling / dismounting unit 613 described with reference to FIG. It divides and adds necessary information, and further attaches a USB protocol header / footer to each divided portion to generate a plurality of USB protocol packets, and through the communication interface 229, the protocol conversion device 600 (L
SI610) are sequentially transmitted.

In the LSI 610, while the plurality of USB protocol packets are sequentially received, the head / final flag attaching / removing unit 6132 constituting the USB protocol assembling / disassembling unit 613 transfers the data of the head flag and the last flag and the data length. It is removed and sent to the data division / assembly unit 6133,
The assembling unit 6133 assembles the sent data to restore the original wireless protocol packet and sends it to the communication unit transmitting / receiving driver 612. The communication unit transmission / reception driver 612 transmits the wireless protocol packet having the long data length to the MS.

By adopting such a configuration, it is possible to handle data having a data length exceeding the maximum length of the USB protocol packet without breaking the formation of the wireless protocol packet.

In the above-mentioned embodiments, since the protocol conversion device is provided between the PC and the MS as described above, the PDC system is adopted as the communication system adopted in the communication between the protocol conversion device and the MS. , PHS system, CD
Although the MA method is mentioned, in the present invention, the communication device of the other party connected to the protocol conversion device is MS (mobile phone terminal).
Need not be, but the communication unit transmission / reception driver 6 shown in FIG.
12 may include a driver that performs communication conforming to the optical communication standard, or may include a driver that performs communication conforming to the RS232C standard.
~ The second embodiment described with reference to Fig. 14 or Fig. 1
6, the communication method can be selected from a plurality of communication methods as in the third embodiment described with reference to FIG. 17, and the optical communication method or RS is used as one of the selectable communication methods.
A 232C system or the like may be added.

Although the USB method is mentioned as the communication method on the PC side, the communication method on the PC side is not limited to the USB method, and for example, the RS232C method may be adopted.

FIG. 20 is a schematic configuration diagram of an embodiment of a communication device having the function of the protocol conversion device of the present invention and the function of performing wireless communication with the outside.

This communication device 700 includes a radio communication section 810 equipped with an antenna 811, and a protocol conversion section 720.
A protocol processing unit 730 and an application execution unit 740.

The wireless transmission / reception unit 810 corresponds to the wireless telephone in the above-described embodiment, and the protocol data (wireless protocol data) conforming to the wireless communication standard (here, PDC standard) is added to the user data. The wireless protocol packet transmitted from the base station 900 by radio waves is received by the antenna 811 and sent to the protocol conversion unit 820, and also transmitted from the protocol conversion unit 820. The received wireless protocol packet is received and wirelessly transmitted to the base station 900.

The protocol conversion unit 820 has the same configuration as that of the protocol conversion device 600 shown in FIG. 7 installed in the LSI, receives wireless protocol data from the wireless communication unit 810, and uses the US
A data packet (USB protocol packet) compliant with the USB standard is generated by adding protocol data compliant with the B standard (USB protocol data) and passed to the protocol processing unit 830. Wireless protocol data is added to the USB protocol packet, and a USB protocol packet including USB protocol data is received, and the USB
The wireless protocol packet is extracted by removing the USB protocol data from the protocol packet, and the wireless protocol packet is passed to the wireless transmission / reception unit 810.

Further, the protocol processing section 830 is configured as shown in FIG.
It has the same configuration as the communication function part of the personal computer as shown in FIG. That is, the protocol processing unit 830 includes a USB controller 831 as hardware that transmits and receives USB protocol packets to and from the protocol conversion unit 820, and the protocol processing unit 83.
0 from the USB protocol packet sent from the USB controller 831 by removing the USB protocol data to extract the wireless protocol packet, and the communication driver 8 extracts the extracted wireless protocol packet.
33 and adds USB protocol data to the wireless protocol packet received from the communication driver 833, and transmits the U protocol data to the protocol processing unit 830 for communication.
USB driver 832 passed to SB controller 831
The wireless protocol packet is received from the USB driver 832, the wireless protocol data is removed from the wireless protocol packet, the user data is extracted and passed to the application program 841 of the application execution unit 840, and the application of the application execution unit 840 sends the user data. Receives data and adds wireless protocol data to the received user data to generate a wireless protocol packet,
A communication driver 833 for sending the generated wireless protocol packet to the USB driver 832 is provided.

The application execution unit 840 executes the application program 841.

That is, the communication device 800 shown in FIG.
Has a form in which the protocol conversion device 600 and the wireless telephone 300 shown in FIG. 1 are built in the personal computer 100. In this case, the functions are integrated, for example, the keyboard 103 is used instead of the push button of the wireless telephone 300.

Alternatively, the communication device 800 shown in FIG.
May be one in which the function of the protocol conversion device 600 is incorporated in a mobile device having the function of the wireless telephone 300, and among the constituent elements of the personal computer 100, the elements necessary for the mobile device are incorporated.

FIG. 21 is a diagram showing a modification of the communication device shown in FIG. Differences from the communication device shown in FIG. 20 will be described.

The communication apparatus 800 shown in FIG. 21 corresponds to the protocol conversion unit 820 (the protocol conversion unit 820 corresponds to the USB section transmission / reception driver 611 when the internal configuration is divided like the protocol conversion apparatus 600 shown in FIG. 7). And a USB driver 832 of the protocol processing unit 830, the USB protocol packet is directly transferred.

The protocol processing unit 830 which constitutes the communication device 800 shown in FIG.
A B controller 831 is provided, and communication with the protocol conversion unit 820 is performed by the USB controller 83.
However, this is necessary when the protocol processing unit 830 (personal computer) and the protocol conversion unit 820 (protocol conversion device) are configured as separate devices. , This USB controller, as shown in FIG.
It is not always necessary when configured as an integrated device.

[0124]

As described above, according to the present invention, a protocol conversion device that is downsized and reduced in cost, and communication that is compatible with the protocol conversion device or has the function of the protocol conversion device built therein. It is possible to configure a device, a communication system including the protocol conversion device, and the like.

[Brief description of drawings]

FIG. 1 is an external view of an embodiment of a communication system of the present invention.

FIG. 2 is a hardware configuration diagram of a computer system whose appearance is shown in FIG.

FIG. 3 is a schematic diagram of a communication program stored in a CDROM.

FIG. 4 is an operation explanatory diagram of the protocol conversion device including the internal configuration of the protocol conversion device which constitutes the conventional communication system.

5 is a diagram showing a protocol flow of a data packet input / output to / from the protocol conversion device shown in FIG.

FIG. 6 is an explanatory diagram of a communication function portion of a personal computer that constitutes a conventional communication system.

FIG. 7 includes an internal configuration of a protocol conversion device configuring a communication system as an embodiment of the present invention shown in FIG.
It is an operation explanatory view of the protocol conversion device.

8 is a schematic diagram showing a protocol flow of a data packet input / output to / from the protocol conversion device shown in FIG.

FIG. 9 is an explanatory diagram of a communication function portion of a personal computer (PC) that constitutes the communication system of this embodiment.

FIG. 10 is a flowchart of a communication function part of a PC when receiving a data packet.

FIG. 11 is a flowchart of a communication function part of a PC when transmitting a data packet.

FIG. 12 is an explanatory diagram of a communication function part of a personal computer (PC) that constitutes a second embodiment of the communication system of the present invention.

FIG. 13 is a schematic diagram of a protocol conversion device which constitutes a second embodiment of the communication system of the present invention.

FIG. 14 is a “H” level of GPI01 and GPI02,
USB for transmitting'L 'level setting information to PC
It is a figure which shows a protocol packet.

FIG. 15 is a flowchart of communication driver setting executed by a PC that receives a USB protocol packet as shown in FIG.

FIG. 16 is a diagram showing a partial configuration of an LSI in a protocol conversion device which constitutes a third embodiment of a communication system of the present invention.

FIG. 17 is a diagram showing a partial configuration of an LSI in a protocol conversion device which constitutes a third embodiment of a communication system of the present invention.

FIG. 18 is a diagram showing an internal configuration of an LSI in a protocol conversion device which constitutes a fourth embodiment of the communication system of the present invention.

FIG. 19 is a diagram showing a data structure of data communicated via an LSI.

FIG. 20 is a schematic configuration diagram of an embodiment of a communication device having the function of the protocol conversion device of the present invention and the function of performing wireless communication with the outside.

FIG. 21 is a diagram showing a modification of the communication device shown in FIG. 20.

[Explanation of symbols]

100 personal computer 101 main body 101a Floppy disk loading port 101b CDROM loading port 102 CRT display 102a display screen 103 keyboard 104 mice 210 CDROM 211 hard disk 212 floppy disk 220 bus 221 Central processing unit (CPU) 222 RAM 223 Hard Disk Controller 224 floppy disk driver 225 CDROM driver 226 mouse controller 227 keyboard controller 228 Display Controller 229 communication interface 250 communication program 251 communication driver 252 USB driver 254 loading means 300 mobile phones 500 communication cable 500a 16 core cable 500b USB cable 600 protocol converter 610 LSI 611 USB section transmission / reception driver 612 Communication unit transmission / reception driver 613 USB protocol assembly / removal unit 614 Serial device controller 800 communication device 810 wireless transceiver 811 antenna 820 protocol converter 830 Protocol processing unit 831 USB controller 832 USB driver 833 communication driver 840 application execution unit 841 application program 900 base station 6131 Data length counting section 6132 Lead / Final flag attachment / detachment section 6133 Data Division / Assembly Department

   ─────────────────────────────────────────────────── ─── Continued front page    F-term (reference) 5K033 AA04 CB02 DA17 DB16 DB18                 5K034 EE03 FF01 HH61                 5K067 AA42 BB21 EE02 HH21

Claims (13)

[Claims] 1. A first transmission / reception driver for transmitting / receiving a data packet conforming to the first communication standard, wherein protocol data conforming to the first communication standard is added to the user data, and a second transmission / reception driver for the user data. A second transmission / reception driver that transmits / receives a data packet conforming to the second communication standard, to which protocol data conforming to the second communication standard is added; and the first communication received by the first transmission / reception driver. A data packet conforming to the standard is received, and protocol data conforming to the second communication standard is further added to the received data packet to generate a data packet conforming to the second communication standard. Second
Of the transmission / reception driver for transmission to the second transmission / reception driver, the protocol data conforming to the first communication standard is added to the user data received by the second transmission / reception driver, and the second transmission / reception driver is further added. User data is obtained by receiving a data packet conforming to the second communication standard, to which protocol data conforming to the communication standard is added, and removing the protocol data conforming to the second communication standard from the received data packet. A data packet compliant with the first communication standard, wherein the protocol data compliant with the first communication standard is added to the first transmission / reception driver for transmission from the first transmission / reception driver. Set up one type of communication standard selected from multiple types of communication standards and the protocol assembly / disassembly section to be passed to The first transmission / reception driver is characterized in that the first transmission / reception driver is configured such that user data is added with first protocol data conforming to the first communication standard set by the standard setting unit. A protocol conversion device, which transmits and receives data packets conforming to a communication standard. 2. The standard setting unit has a register for storing setting standard data representing a communication standard to be set,
Receiving a data packet received by the second transmission / reception driver, in which protocol data conforming to the second communication standard is added to the setting standard data, extracting the setting standard data from the data packet, and registering the data. It is set to 1.
The described protocol conversion device. 3. The standard setting unit sets a communication standard on the basis of a signal set by the protocol conversion device itself, and the second transmission / reception driver sets the communication standard set by the standard setting unit. 2. The protocol conversion device according to claim 1, wherein a data packet in which protocol data conforming to the second communication standard is added to setting standard data representing a standard is transmitted. 4. The protocol assembling / disassembling section,
When the data packet received by the first transmission / reception driver is a data packet exceeding a predetermined length, the data packet is divided into a plurality of parts, and the second packet is divided into second parts for each part.
A plurality of pieces of data, each of which is generated by generating a data packet conforming to the communication standard and received by the second transmission / reception driver and is divided into a plurality of data packets conforming to the first communication standard, as user data. The protocol conversion device according to claim 1, wherein an original data packet conforming to the first communication standard is restored from the packet. 5. A communication device that communicates with the outside, receives user data, adds protocol data conforming to a first communication standard to the user data, and forms a data packet conforming to the first communication standard. First drive means for generating a user packet, receiving a data packet in which protocol data conforming to the first communication standard is added to the user data, removing the protocol data from the data packet, and extracting the user data; Compliant with the second communication standard by receiving a data packet conforming to the first communication standard generated by the first drive means and adding protocol data conforming to the second communication standard to the data packet Generated data packet, and the data compliant with the first communication standard is added to the user data. A data packet compliant with the second communication standard is further added to a data packet compliant with the first communication standard, and a data packet compliant with the second communication standard is received from the data packet. Second drive means for extracting the data packet conforming to the first communication standard and delivering the data packet to the first drive means by removing protocol data conforming to the second communication standard; and the second drive means. A communication unit that receives a data packet conforming to the second communication standard from the outside and transmits it to the outside, and receives a data packet conforming to the second communication standard from the outside and passes the data packet to the second drive unit. A communication device comprising: 6. The second drive means adds protocol data conforming to the second communication standard to setting standard data representing one type of communication standard selected from a plurality of communication standards. The communication device according to claim 5, wherein the communication device generates a data packet and delivers it to the communication unit. 7. The first drive means includes a plurality of types of first drive means each having a plurality of types of communication standards as the first communication standards, and the plurality of types of first drive means are provided. Of these, a standard setting means for activating the first drive means according to setting standard data received from the outside and representing one type of communication standard selected from the plurality of types of communication standards is provided. The communication device according to claim 5. 8. The second drive means, when the data packet conforming to the first communication standard received from the first drive means is a data packet exceeding a predetermined length, the data packet Is divided into a plurality of parts, a data packet conforming to the second communication standard is generated for each part, passed to the communication unit, and received from the communication unit, the data packet conforming to the first communication standard. Is to restore the original data packet conforming to the first communication standard from a plurality of data packets each of which is divided into a plurality of pieces of user data and to pass the data packet to the first driver means. The communication device according to claim 5, wherein: 9. A communication program storage medium, which stores a communication program which, when executed in a computer, causes the computer to operate as a communication device for communicating with the outside, receives user data and receives the user data. Data in which protocol data compliant with the first communication standard is added to a user packet to generate a data packet compliant with the first communication standard, and protocol data compliant with the first communication standard is added to user data. First drive means for receiving a packet and removing the protocol data from the data packet to extract user data; and receiving a data packet generated by the first drive means and complying with the first communication standard, and receiving the data. Add protocol data that conforms to the second communication standard to the packet. Thereby generating a data packet conforming to the second communication standard, and further adding the data packet conforming to the first communication standard to the user data to which the data conforming to the first communication standard is added. By receiving a data packet compliant with the second communication standard, to which protocol data compliant with the second communication standard is added, and removing the protocol data compliant with the second communication standard from the data packet, A communication program storage medium, which stores a communication program having a second drive means for extracting a data packet conforming to the first communication standard and delivering the data packet to the first drive means. 10. A first transmission / reception driver for transmitting / receiving a data packet conforming to the first communication standard, wherein protocol data conforming to the first communication standard is added to the user data, and a second transmission / reception driver for the user data. A second transmission / reception driver that transmits / receives a data packet conforming to the second communication standard, to which protocol data conforming to the second communication standard is added; and the first communication received by the first transmission / reception driver. A data packet conforming to the standard is received, and protocol data conforming to the second communication standard is further added to the received data packet to generate a data packet conforming to the second communication standard. Second
Of the transmission / reception driver for transmission to the second transmission / reception driver, the protocol data conforming to the first communication standard is added to the user data received by the second transmission / reception driver, and the second transmission / reception driver is further added. User data is obtained by receiving a data packet conforming to the second communication standard, to which protocol data conforming to the communication standard is added, and removing the protocol data conforming to the second communication standard from the received data packet. A data packet compliant with the first communication standard, wherein the protocol data compliant with the first communication standard is added to the first transmission / reception driver for transmission from the first transmission / reception driver. The protocol conversion device equipped with the protocol assembly / disassembly section and the communication for external communication. An apparatus, which receives user data, adds protocol data conforming to the first communication standard to the user data to generate a data packet conforming to the first communication standard, and adds the first data to the user data. First drive means for receiving a data packet to which protocol data conforming to a communication standard is added and removing the protocol data from the data packet to extract user data; and the first drive means generated by the first drive means. Receiving a data packet conforming to the communication standard, and further adding protocol data conforming to the second communication standard to the data packet to generate a data packet conforming to the second communication standard. Compliant with the first communication standard in which data compliant with the first communication standard is added Protocol data conforming to the second communication standard is further added to the data packet,
By receiving a data packet conforming to the second communication standard and removing protocol data conforming to the second communication standard from the data packet, a data packet conforming to the first communication standard is extracted and A second drive means to be passed to the first drive means, and a data packet conforming to the second communication standard from the second drive means to be transmitted to the outside and conform to the second communication standard. And a communication unit that receives the data packet from the outside and transfers it to the second drive means. 11. A first transmission / reception driver for transmitting / receiving a data packet conforming to the first communication standard, wherein protocol data conforming to the first communication standard is added to the user data, and a second transmission / reception driver for the user data. A second transmission / reception driver that transmits / receives a data packet conforming to the second communication standard, to which protocol data conforming to the second communication standard is added; and the first communication received by the first transmission / reception driver. A data packet conforming to the standard is received, and protocol data conforming to the second communication standard is further added to the received data packet to generate a data packet conforming to the second communication standard. Second
Of the transmission / reception driver for transmission to the second transmission / reception driver, the protocol data conforming to the first communication standard is added to the user data received by the second transmission / reception driver, and the second transmission / reception driver is further added. User data is obtained by receiving a data packet conforming to the second communication standard, to which protocol data conforming to the communication standard is added, and removing the protocol data conforming to the second communication standard from the received data packet. A data packet compliant with the first communication standard, wherein the protocol data compliant with the first communication standard is added to the first transmission / reception driver for transmission from the first transmission / reception driver. And a protocol conversion device having a protocol assembling / disassembling unit, which is executed in a computer And a communication program storage medium storing a communication program for operating the computer as a communication device for communicating with the outside, the user data being received, and the user data complying with the first communication standard. To generate a data packet conforming to the first communication standard, and receiving a data packet in which protocol data conforming to the first communication standard is added to user data, and receiving the data packet from the data packet. First drive means for removing protocol data and extracting user data; and a data packet conforming to the first communication standard generated by the first drive means for receiving the data packet and the second communication. By adding protocol data that conforms to the standard, it conforms to the second communication standard. A data packet based on the first communication standard, which is generated by adding protocol data based on the first communication standard to user data, and a protocol based on the second communication standard. According to the first communication standard, by receiving a data packet having data added thereto and complying with the second communication standard, and removing protocol data conforming to the second communication standard from the data packet. A communication system comprising: a communication program storage medium in which a communication program having a second drive means for taking out a data packet and delivering it to the first drive means is stored. 12. A data packet conforming to the first communication standard, wherein the protocol data conforming to the first communication standard is added to user data, and the received data conforming to the first communication standard is received. A data packet conforming to the second communication standard is generated and output by adding protocol data conforming to the second communication standard to the packet, and protocol data conforming to the first communication standard is added to the user data. Is added, and protocol data conforming to the second communication standard is further added, a data packet conforming to the second communication standard is received, and the received data packet conforms to the second communication standard. By removing the protocol data, the protocol data conforming to the first communication standard is added to the user data. And a protocol conversion unit that extracts and outputs a data packet that conforms to the first communication standard, and receives a data packet that conforms to the first communication standard from the outside and passes it to the protocol conversion unit, A transmission / reception unit that receives a data packet conforming to the first communication standard from the protocol conversion unit and transmits the data packet to the outside, and receives user data and adds protocol data conforming to the first communication standard to the user data. Then, by further adding protocol data compliant with the second communication standard, a data packet compliant with the second communication standard is generated and passed to the protocol conversion unit, and from the protocol conversion unit, Protocol data conforming to the first communication standard is added to user data,
Further, a data packet compliant with the second communication standard, to which protocol data compliant with the second communication standard is added, is received, and protocol data compliant with the second communication standard is received from the received data packet. A communication device, comprising: a protocol processing unit for removing user data by removing the protocol data conforming to the first communication standard. 13. The transmission / reception unit wirelessly receives a data packet conforming to the first communication standard from the outside and passes it to the protocol conversion unit, and the protocol conversion unit complies with the first communication standard. 13. The communication device according to claim 12, wherein the communication device receives the data packet and wirelessly transmits the data packet to the outside.