TW466413B - Data connecting method and device between computers - Google Patents

Abstract

Provided is a data connecting method using the universal serial bus (USB) interface specification to define at least the first to fourth identification codes to enable data transmission and reception between at least the first and second computers. The method comprises: (a) enabling the first computer to enter a data transmitting state and generating a message including a first ID to output to a logic and control unit; (b) in response to the first ID, the logic and control unit generating a message including a second ID to output to the second computer, so as to enable the second computer to enter a data receiving state in response to the second ID; (c) enabling the first computer to generate a message including a third ID and object data to output to the logic and control unit; and (d) in response to the third ID, the logic and control unit temporarily storing the object data and generating a message including a fourth ID to output to the second computer, so as to enable the second computer to input the object data in response to the fourth ID. Provided is also a data connecting device between computers for providing the USB interface specification to enable data transmission and reception between at least the first and second computers. The device includes: a first interface control unit electrically connected to the first computer in data transmitting status, the first interface control unit entering a first and a third control mode, respectively, in response to a message including a first ID and a message including a third ID and object data generated by the first computer for output; an interface logic unit electrically connected to the first interface control unit for respectively corresponding to the first and third control mode and generating a second and a fourth logic state for output; and a second interface control unit electrically connected to the interface logic unit and the second computer, which can enter a second and a fourth control mode, respectively, in response to second and fourth logic states, and respectively generating a message including a second ID and a message including a fourth ID to output to the second computer, so as to enable the second computer to enter a data receiving state and to input the object data.

Description

46 64 1 3

__Case No. 8711fi5 卯 5 'Description of the invention (2) ^ 月 日 _ But pay as if' so 'Based on the us B interface specifications, it can be predicted that it will inevitably become the future mainstream spindle' The inventors hope to provide users with a Simple and convenient connection method and device with USB interface specification to perform the connection between computers, avoiding the need to use expensive and complicated equipment to set up network components. The main purpose of this case is to provide a data connection method between computers that can transmit and receive data according to USB interface specifications. The secondary purpose of this case is to provide a data connection device between computers that can transmit data with the USB interface specification. This case is about a data connection method between computers. It is at least the first to fourth identification codes defined according to the USB (Universal Serial Bus) interface specification, so that at least one of the first and second computers can transfer data. The method includes: a) causing the first computer to enter a state of transmitting data and generating and outputting a message including the first identification message to a logic and control unit; b) corresponding to the first identification code, the The logic and control unit generates and outputs a message including a second identification code to the second computer, so that the second computer enters a receiving data state in response to the second identification code; c) causes the first computer to generate an output- A message including a third identification code and a destination data to the logic and control unit; and d) a third identification code corresponding to the logic and control unit to temporarily store the destination data and generate an output-a message containing a fourth identification code To the second computer, the second computer is caused to input the destination data in response to the fourth identification code. According to the above conception, the information including the first to fourth identification codes is a packet containing the first to fourth 哉 berma (p a c k a g e

4 6 641 3 _Case No. 87116596 Month, Amendment V. Description of the Invention (3) According to the above-mentioned concept, the first identification code that complies with the definition of the U S B specification can be a control instruction to prepare data for transmission. According to the above concept, the second identification code conforming to the definition of the USB specification can be a control instruction to prepare to receive data. 3 According to the above conception, the third identification code conforming to the definition of the USB specification can be a control to start transmitting data. instruction. According to the above conception, it claims that the fourth identification code that conforms to the definition of the USB specification can be a control command to start receiving data. According to the above concept, the logic and control unit may include a register. 'Wherein the register may be a one-way input of data, where the register may be a two-way input of a set of data, wherein the method may further include: e According to the above conception / output buffer. I / O buffer according to the above concept. According to the above conception, the method may further include: e) causing the second computer to enter the transmission data state and generating a message containing the first identification code to the logic and control unit; f) corresponding A first identification code, and the logic and control unit generates and outputs the message including the second identification code to the first computer, so that the first computer enters the S-channel and receives poor information in response to the second identification code; g ) Causing the second computer to generate and output the message containing the third identification code and the destination data to the logic and control unit; and h) corresponding to the third identification code, the logic and control unit temporarily stores the destination data and generates output The message including the fourth identification code is transmitted to the first computer, so that the first computer inputs the destination data in response to the fourth identification code.

4 5 6 4 1 3 __ Case No. 87116596 Month

S Amendment V. Description of the invention (4) This case is also about a data connection device between computers, which can provide a Universal Serlal interface specification, so that at least-the first and second computers can transmit data; the device includes: A first interface control unit is electrically connected to a first computer in a state of transmission and delivery. The first interface control unit 圩 responds to one of the messages generated by the first computer including a first identification code (meSSage) and A message containing a third identification of the mother and the target 'enters a first and a third control mode respectively; an interface logic unit, the electric speed is connected to the first interface control > control unit', which can respectively respond to the first And the third control mode 'to produce a second and a fourth logic state; and a second interface control element "electrically connected to the interface logic unit and the second computer" which can respond to the first and the third Four fun album states 'and enter a second and fourth control mode respectively' and generate a message containing a second identification code and a message containing a fourth identification code to the second computer, respectively, 俾Put the > computer into a receiving data state and input the destination data, respectively. According to the above concept, the first computer includes an interface unit conforming to the USB specification, which is electrically connected to the first interface control unit. According to the conception of the death statement ', the second computer includes a second computer that complies with the USB specification = T, which is electrically connected to the second interface control unit. According to the above concept, Zhizhong „^ ^ ^ ^-The Zhongdi-I interface control unit is an interface control unit that conforms to the L · b ΰ specification. According to the above-mentioned concept, the device is composed of ^ ^ An interface control unit including a pull-out 55 ^ Tianxin connector that conforms to the USB specification. According to the above configuration, Gan Shi——

_Specification interface control unit ^ / Heidi second interface control unit ^ is a 466413 _ case number 87116596_ year month_a_ amendment _ 5 Description of the invention (5) According to the above conception, where the second interface The control unit is an interface control unit including a connector that complies with the USB specification. According to the above conception, the messages including the first to fourth identification codes are all packages containing the first to fourth identification codes respectively. According to the above conception, the first The identification code can be a control command to prepare data for transmission. According to the above concept, the second identification code conforming to the ISB specification can be a control instruction for preparing to receive data. According to the above concept, the third identification code conforming to the definition of the USB specification can be used to transmit data at the beginning. According to the above-mentioned structure, the fourth identification code that meets the definition of the USB specification can be a control instruction for receiving data at the beginning. According to the above-mentioned idea, the interface logic unit can be a function of setting a logic state. According to the above-mentioned concept, the second interface control unit may respond to the message including the first identification code and the message including the third identification code and output according to the second computer in the transmitting data state. The information of the target data enters the first and third control modes respectively. According to the above-mentioned concept, the interface logic unit can output the second and fourth logic states corresponding to the first and third control modes, respectively. According to the above concept, the first interface control unit may respond to the second and fourth logic states respectively, and Enter the second and fourth control modes respectively, and generate and output the message containing the second identification code and the message containing the fourth identification code to the first computer t, respectively, and enable the first computer to enter

4 6 64 1 3 _Case No. 871 16596_ Year, month, day, and date V. Description of the invention (6) Enter the edge to receive the poor materiality and turn the data of the purpose σ According to the above concept, the interface logic unit may include: An interface logic unit 'is electrically connected to the first interface control unit, which can generate a first and a third logic state according to the first and third control modes, respectively; and a second interface logic unit, which is electrically connected The first interface logic unit can generate a second and a fourth logic state in response to the first and third logic states, respectively. According to the above concept, the second interface control unit may respond to the information including the first identification code and the information including the third identification code and the output generated by the second computer in the state of transmitting data, respectively. Message and enter the first and third control modes respectively. According to the above-mentioned concept, the second interface logic unit can generate the first and third logic states according to the first and third control modes, respectively. According to the above-mentioned concept, the first interface logic unit can be set to output the second and fourth logic states respectively according to the first and third logic states. According to the above concept, the first interface control unit may enter the second and fourth control modes respectively according to the second and fourth logic states, and respectively generate and output the message including the second identification code and the message including The information of the fourth identification code is sent to the first computer, and the first computer is caused to enter the receiving data state and input the destination data, respectively. According to the above concept, the data connection device between the computer and the computer may further include a temporary register, which is used to temporarily store the data for the purpose. According to the above concept, the register can be a one-way data input

Page 10 4 6 6 4 1 3 _Case No. 87116596_ Year Month ____ V. Description of the Invention (7) / Output Buffer 3 According to the above concept, the register can be a set of data bidirectional input / output buffer. First of all, because this case uses the USB interface specification to perform data transmission and reception between interconnected computers, the inventor thought about the message (or packet) that should be available on the connected network. Add an identification code that conforms to the USB interface specifications, and identify the type of action you want to perform (y — for example, at least including preparing to send data, preparing to receive data, starting to send data, and starting to receive data), and identify the identification code and handshake (handsh-aking) work is jointly performed by the logic and control unit located between the computers (so the identification codes can also be regarded as virtual endpoints set in the logic and control unit) In this way, when carrying out lean material transmission between the lost computers, each connected computer can interrupt the normal procedure and handle the transmission or reception of the connected data only if the logic and control unit has a request. At the same time, when the logic and control unit does not issue a request, each connected computer can still handle its own normal program. In other words, we can simulate the logic and control unit as a "peripheral device" of each connected computer, so that each connected computer connected to the logic and control unit through the USB interface specification seems to be a separate system. Perform "pi operation" or receive a π response to its exclusive "peripheral device", and then complete the data transmission or reception between it and the "peripheral device", and by using the virtual device as the M peripheral device

'4 6 64 1 3 _Case No. 87116 India 6__ Year Month _ ^ ____ V. The logic of the invention (8) " is integrated with the identification code and the handshake action. This display will solve the current problem smoothly. Cannot use the existing USB interface of the computer to complete the problem of connecting at least two computers (such as the connection between a notebook computer and a desktop computer) and take into account the independent operating efficiency of each connected computer. In addition, with the above method (ie, adding an identification code that conforms to the USB interface specification to the information of the connected network, or treating it as a virtual endpoint set in the logic and control unit), No. specification connection between the computer and the logic and control unit is only physically connected to the rain bar. It can still easily use the USB interface specification to complete all data transmission and reception between computers. One of the preferred implementation concepts of this case is clearly disclosed, and here is an example to illustrate the following: If a first computer and a second computer want to be connected to a computer, the types of line actions they should perform include at least: preparing to send data, Prepare to receive data, start transmitting data, and start receiving data. In this way, you can use four sets of identification codes (Ea〇, Eb〇), (Eal, Ebl), (Ea2, E b 2), (E a 3, E b 3) to indicate the four actions, and add the four sets of identification codes to the network (message) (or package) in the message (or package) after the logic and control unit. Basis added to this information Corresponding to the type of the identification code in the corresponding control action; of course, if the identification codes are regarded as virtual endpoints set in the logic and control unit, it is easier to understand the logic and The role of the control unit among the connected computers. Please refer to the first figure, which is a virtual method of the preferred implementation concept of this case.

Page 12 ο 6 4-1 3 years _ case number 87116596 V. Description of the invention (9) Block diagram 'In Figure 1, it contains, β, a logic and control unit 1Q ,. Correction-the first computer and The second computer A · buffer register 11, the four sets of identification code levels are two-way data input / output buffer (Eal'Ebl), (Ea2, Eb2), (Ea3 EI means virtual endpoint) (Ea0, EbG) , Ing) line HL; in Fuzhong, when I am a fan of a machine b3) and handshake (the second time / the first electricity in the middle ^; brain ^ ^ transmission / material ^ the pseudo endpoint EaO, so This logic and control „仃 ^ 送 彳 = # to the imaginary place P 一 $ standm # 太 # #% π ″ Early Wu 1 0 know that the first computer A is in the state of preparation to convey the status of Beco's, meanwhile, # From the handshaking line HL, the logic and control unit ^ performs a handshaking action, and a virtual breakpoint number is generated at the virtual endpoint Ebl to the second computer B to request the first computer B The second computer b interrupts the normal sequence and enters-ready to connect, data status; then, when the first computer_4 maintains the virtual endpoint Ea2 and is detected by the logic and control unit 10, The logic And the control unit 10 knows that the first computer A enters the state of transmitting data at the beginning and the signal sent from the virtual endpoint E a 2 contains a purpose data, so 'the game and control unit 丨 〇 will soon The destination data is stored in the temporary register 11 of the bi-directional input / output buffer. After that, the logic and control unit 10 performs the parent grip and causes the destination data to be output from the virtual endpoint E b 3. The second computer B then enters the state of receiving data at the beginning and enters the destination data a from the virtual endpoint Eb3. Similarly, when the transferee—computer β wants to send data to the first telemeter a, the second computer β must send in advance-send a signal to the virtual end point E b ′ to make the logic and control unit 1 10 know that the second computer B is in a state ready to transmit data: at the same time, through the handshake line HL The logic and control unit 10 performs a handshake action, and generates a

Page 13 --- Case No. 87116596_Year Month β Amendment ___ V. Send a (10) interrupt signal to the first computer A to request that the computer A interrupts the normal process and enters a ready to receive data State; further, when the second computer B operates the virtual endpoint E b 2 and is detected by the logic and control unit 10, the logic and control unit 10 will know the second computer B Enter the state of transmitting data at the beginning and the signal sent from the virtual endpoint E b 2 is the destination data. Thus, the logic and control unit 10 stores the destination data in the bidirectional input / output buffer. In the register 11, after that, through the logic and the control unit 10, a handshake / action is performed and the destination data is output from the virtual endpoint Ea3, the first computer a enters the state of receiving data at the beginning and since The purpose and data are rotated at the virtual endpoint Ea3. Better, in order to further reveal the method and device for implementing the above-mentioned preferred concepts of the present case, please refer to the second figure in advance, which is an example flow chart of a preferred implementing method of the present case; in which, a first computer is used first Send the target data to a second computer ', and then the second computer sends the target data back to the first computer as an example. The inventor believes that after this explanation, the invention of this case should be fully disclosed. The spirit is; of course, the following steps can be included in Figure 2: Step A20: Start step A2 1: Make the first computer enter a data transmission state and generate and output a message containing the first identification code (message) to A logic and control unit; where the first identification code that complies with the definition of the USB specification can be a control instruction to prepare data for transmission; Step • Step A 2 2: In response to the first identification code, the logic and control unit generates Output a message containing a second identification code to the second computer, so that the brother Yimao enters the state of one-failure data in response to the 3rd identification mother;

Page 14 In the 66th and 87116596 revisions of the "Five 'invention description (11), the second identification code that conforms to the definition of the US Β specification can be a control instruction to prepare to receive _ data; Step A 2 3: Make The first computer generates and outputs a message including a third identification code and a destination data to the logic and control unit, and a register included in the logic and control unit is used to temporarily store the destination data; the register It can be a set of data bi-directional input / output buffers, and the third identification code that complies with the definition of the USB specification can be a control command for transmitting data at the beginning;. V- Step A 2 4: In response to the third identification code, The logic and control unit generates and outputs a message including a fourth identification code to the second: computer, so that the second computer enters the destination data in response to the fourth identification code; wherein, the first The four identification codes can be control instructions for receiving data at the beginning; Step A 2 5: Make the second computer enter the transmission data state and generate and output the message including the first identification code to the logic and control. Among them, the first identification code conforming to the definition of the USB specification may be a control instruction for preparing data for transmission; Step A26: In response to the first identification code, the logic and control unit generates and outputs the second identification code. Message to the first computer, so that the first computer enters the receiving data state in response to the second identification code; wherein the second identification code conforming to the definition of the USB specification can be a control instruction for preparing to receive data; Step A 2 7: causing the second computer to generate and output the message containing the third identification code and a destination data to the logic and control unit; wherein the register included in the logic and control unit is available for temporary storage Information for that purpose, and

Fifth page's description of the invention (12) The third identification code that conforms to the definition of the USB specification can be a control instruction;] Beginning of transmission 逯 Step A28: In response to the third identification 该, the logic and control output The message including the fourth identification code is sent to the first computer, so that the first computer enters the destination data in response to the fourth identification code, wherein the fourth identification code conforming to the definition of the USB specification may be a Start receiving '" control instructions: and step A29: End. In addition, in this case, the embodiment of the logic and control unit located between the connected computers' please cooperate with the block example shown in Fig. 3, ...: You can get a deeper understanding of this case β ^ Please refer to the third figure , Which is an example block diagram of a preferred implementation device of this case; FIG. 3 includes: a first computer and second computer A, B, a computer data connection device 30, a first interface control Unit 3 /, a first interface logic unit 32 'a first interface logic unit 33,-a first interface control unit 34, a set of temporary registers for data bidirectional input / output buffers' entities that conform to USB electrical specifications Connect La, Lb, four sets of identification codes (or treat them as four sets of virtual endpoints) (EaOT EbO), (Eal, Ebl), (Ea2'Eb2), (Ea3, Eb3), and handshaking ) Line HL °

On page 16, we first take an example of transmitting data from the first computer a to the second computer b as an example; in FIG. 3, 'the first interface control unit 31 is electrically connected to a first in a state of transmitting data. At the computer 4, the first interface control unit 31 can respond to one of the messages generated by the first computer A including the first identification code and a message including the third identification code and the destination data, respectively. Enter a first and third control mode; of course, the first realm 4 6 6411 was amended in May 1996. 5. Description of the invention (13) Surface logic unit 3 2 can correspond to the first and third control modes respectively. And set to output a first and a third logic state; as for the register 35, it can respond to the third control mode, and after temporarily storing the target data α, the second interface logic unit 33 can respond to The first and third logic states are set to output a second and fourth logic state, respectively. As for the second interface control unit 34, it is possible to enter a first and third logic states respectively according to the second and fourth logic states. Second and fourth control modes, A message containing a second identification code and a message containing a jg identification code are generated and output to the second computer B, respectively, so that the second computer B enters a received data state and from the register 3 5 Enter the information for this purpose.:. Preferably, the messages including the first to fourth identification codes are respectively a package containing the first to fourth identification codes; and the first and second ones complying with the USB specification definition The third, fourth, and fourth identification codes (that is, virtual endpoints) are control instructions for preparing to transmit data, preparing to receive data, starting to transmit data, and starting to receive data, respectively. Similarly, the operation procedure of transmitting data from the second computer B to the first computer A is the same as transmitting data from the first computer A to the second computer B, and will not be repeated here. As for the appearance example of the device of the present invention, please refer to the one shown in the fourth figure; among them, at both ends of the physical transmission line La, Lb that conforms to the USB interface specifications on both sides of the data connection device 30 between the computers, more It may include a connector plug Ca, Cb that conforms to the USB interface specification, and the connector plug Ca, Cb is used to connect the first and second computers A, B, respectively. Of course, as shown in the third figure, the first interface control unit 31, the first interface logic unit 32, the first interface logic unit 33, and the first interface

ill Page 17_Case No. 871 16596_Year_Month_Amendment ___ V. Description of the invention (14) Control unit 34 and the register 35 'which is a two-way data rotation in / out buffer can be created An Application Specific Integrated Circuit (ASIC) to facilitate users to use a. In summary, the methods and devices disclosed in this case will make use of the existing USB interface, which can be low cost and convenient The installation method can easily complete the problem of data transmission between the computer and the computer. This case may be modified by any person who is familiar with the art, but it is as good as those who want to protect the scope of the patent application.

Page 18 ^ 664-1 3 _Case No. 87116596_ Year Month _ Amendment _-_ Brief description of the diagram Brief description of the diagram: First diagram: It is a schematic diagram of a virtual block that is one of the preferred implementation concepts of the case »Article Figure 2: It is an example of a flow chart of a preferred implementation method of the present invention; Figure 2: It is an example block diagram of a structure of a preferred implementation of the present invention; and Figure 4: It is an example of the inventive device of the present invention. Appearance example diagram. Component-symbol description: A First computer B Second computer 10 Logic and control unit 11 Temporary cry HL Handshake lines (EaO, EbO), (Eal, Ebl), (Ea2, Eb2), (Ea3, Eb3) identification Code 30 Data connection device between computers 31 First interface control unit 32 First interface logic unit 33 First interface logic unit 34 First interface control unit 35 Register

La 'Lb physical connection C a, C b connector plug

Page 19

Claims (1)

4 6 6 4 13 _ Case No. 87116596 _ Year and Month _ Amendment 6 'Patent Application Scope 1 · A method of data connection between computers, which is defined at least according to the USB (Universal 1 Serial Bus) interface specification. The first to fourth identification codes enable data transmission between at least one of the first and second computers; the method includes: a) entering the first computer into a data transmission state and generating and outputting a message including the first identification code (Me s sage) to a logic and control unit b) In response to the first identification code, the logic and control unit generates and outputs a message containing a second identification code to the second computer, so that the second computer Entering a receiving data state in response to the second identification code; c) causing the first computer to generate and output a message containing the third identification code and destination data to the logic and control unit; and d) responding to the third identification Code, the logic and control unit temporarily stores the destination data and generates a message containing a fourth identification code to the second computer, so that the second computer enters the destination data in response to the fourth identification code. 02 * According to the method for connecting data between computers according to item 1 of the scope of patent application, the messages including the first to fourth identification codes are respectively a packet (p a c k a g e) containing the first to fourth identification exhaustion. 3 * The method for data connection between computers as described in item 1 of the scope of patent application, wherein the first identification code that complies with the definition of the USB specification can be a control instruction to prepare data for transmission. 4 · The method for data connection between computers as described in item 1 of the scope of patent application, wherein the second identification code that meets the definition of the USB specification can be prepared for reception Page 20 466413 __ Case No. 87116596_ Year Month __ Amendment _'__ VI. Instructions for controlling the scope of patent application materials. 5 · The method for data connection between computers as described in item 1 of the scope of the patent application, wherein the third identification code that meets the definition of the USB specification may be a control instruction to start transmitting data. 6 · The method for data connection between computers as described in item 1 of the scope of patent application, wherein the fourth identification code that meets the definition of the USB specification can be a control instruction for receiving data at the beginning. 7. The method for connecting materials between computers according to item 1 of the scope of patent application, wherein the logic and control unit may include a temporary register. 8 · The computer service _ data connection method described in item 7 of the scope of patent application, wherein the temporary register can be a data unidirectional input / output buffer. 9 * The method for connecting data between computers as described in item 7 of the scope of patent application, wherein the register is a set of two-way data input / output buffers. 10 · The method for connecting data between computers as described in item 7 of the scope of patent application, wherein the method may further include: e) putting the second computer into the state of transmitting data and generating and outputting the message including the first identification code (Message) to the logic and control unit I f) corresponding to the first identification code, the logic and control unit generates and outputs the message containing the second identification code to the first computer, so that the first computer responds to The second identification code enters the receiving data state; g) causes the second computer to generate and output the message containing the third identification code and the destination data to the logic and control unit; and h) in response to the third identification code, the The logic and control unit temporarily stores the item Page 2 [Page 4- α ^ zi 1 3 Case No. 87116596 Amendment ^, patent application data and generate and output the message containing the fourth identification code to the first computer 'in' to make the first computer Enter the data for this purpose in response to the fourth identification code 1 1 · A data connection device between computers, which can provide a USB (Universal Serial Bus) interface specification, so that data can be transmitted between at least one first and second computer ; The device includes: a first interface control unit, electrically connected to a state of transmitting data, the first interface control unit can separately _. Meet the first computer, a message containing a first identification code and a packet and The information of the target material 'is different.-Enter the first computer and the first computer, and output the control mode of the identification code; an interface logic responds to the state of the second computer; A fourth logic unit is electrically connected to the first interface control unit, and its first and third control modes generate an output and a second AND; and the surface control can respond to the second A fourth control module includes a first information and a second computer into the hearing {horse feed respectively. Unit, which is electrically connected to the interface logic unit and the second and fourth logic states, and enters the formula respectively, and generates and outputs a message containing a second identification number to the second computer_, and enters a reception The data status and input of the data of the purpose are as described in Item 11 of the scope of patent application. The data connection between computers includes an interface unit that conforms to the USB specification, and an interface control unit. The data connection device between computers according to item 11 of the scope of patent application, wherein the first computer is electrically connected to the first computer. Page 22 Page 23 466413 Case No. 87116596 Amended t. The scope of the patent application is set, where the symbol is used to control the data 2 2. If the application is set, the symbol is used to control the data 2 3. If the application is set, the industry micro Process control order 2 4 · If you apply for the installation, where the second computer and the first one include the third one and the third control 2 5 · If you apply for the installation, where the boundary type, and generate a round 2 6 _If you apply for the installation, Among them, the state of the first series, and the output includes the first to the first computer cancer and the input of the 2 7 ′ if applied, wherein the third identification code defined by the USB specification may be a start-up instruction. The fourth identification code defined by the U.S.B specification for the connection of data between computers as described in item 11 of the patent scope can be a starting instruction. The logic unit for connecting data between computers described in item 11 of the patent scope can be a unit with a logic state setting function. 0 The interface control unit for connecting data between computers described in item 11 of the patent scope can be Enter the first mode according to the message ID containing the first identification code and the message of the destination data generated and outputted in the state of the transmitted data. The logic unit for connecting data between computers described in item 24 of the patent scope can model the second and fourth logic states according to the first and third control modes, respectively. An interface control unit installed in the data connection between computers described in item 25 of the patent scope can enter the second and fourth control modes according to the second and fourth logics, respectively, and generate a two-identity code message and the In the message containing the fourth identification code, the first computer is allowed to enter the data of the received data purpose. The logic unit for connecting data between computers described in item 11 of the patent scope may include: Page 24_ Case No. 871 January 16596_a_ Amendment_ · 1 6. Scope of patent application-a first interface logic unit 'is electrically connected to the first interface control unit, which can respectively respond to the first and third control Mode to generate outputs a first and a third logic state; and a second interface logic unit electrically connected to the first interface logic unit, which can generate an output a first corresponding to the first and third logic states, respectively. Second and fourth logic states. 2 8 · The device for connecting data between computers as described in item 27 of the scope of patent application, wherein the second interface control unit can respond to the output of the second computer that is in the state of transmitting data with the first computer. The information of the identification code and the information including the third identification 4 and the target data enter the first and third control modes respectively. 2 9 · The data connection device between computers as described in item 28 of the scope of patent application, which enables the second interface logic unit to output the first and third outputs in response to the first and third control modes, respectively. Logical state. 3 0 _ The data connection device between computers according to item 29 of the scope of patent application, wherein the first interface logic unit can be set to output the second and fourth logic respectively according to the first and third logic states. State> 3 1 'The data connection device between computers as described in item 30 of the scope of patent application, wherein the first interface control unit can enter the second and fourth logical states respectively according to the second and fourth logical states. Four control modes, and respectively generating and outputting the message including the second identification code and the message including the fourth identification code to the first computer, and respectively causing the first computer to enter the receiving data state and input the destination data. 3 2 * Data connection between computers as described in item 11 of the scope of patent application Page 25 13 Page 26