CN1127027C - Data bus connection method and device between computers - Google Patents
Data bus connection method and device between computers Download PDFInfo
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- CN1127027C CN1127027C CN 98125190 CN98125190A CN1127027C CN 1127027 C CN1127027 C CN 1127027C CN 98125190 CN98125190 CN 98125190 CN 98125190 A CN98125190 A CN 98125190A CN 1127027 C CN1127027 C CN 1127027C
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Abstract
The present invention relates to a data bus connection method and a device between computers. At least a first, a second, a third and a fourth identification codes are defined according to the standard of a USB interface, so that data can be transmitted and received at least between a first and a second computers. The method of the present invention comprises: (a) the first computer enters into a data transmitting state, and generates and outputs information which contains the first identification code to a logic and control unit; (b) the first identification code is responded, and the logic and control unit generates and outputs information which contains the second identification code to the second computer, so that the second computer responds the second identification code and enters into a data receiving state; (c) the first computer generates and outputs information which contains the third identification code and destination data to the logic and control unit; (d) the third identification code is responded, and the logic and control unit temporarily stores the destination data and generates and outputs information which contains the fourth identification code to the second computer, so that the second computer responds the fourth identification code and inputs the destination data.
Description
Technical field
The present invention relates to data bus connection method and device between a kind of computer, refer to especially a kind ofly carry out data according to USB (Universal SerialBus) interface specification and pass to receive data bus connection method and device between the computer of (transmit and receive).
Background technology
After IBM Corporation develops the PC that PC XT and PC AT, promptly generally used with the PC that IBM PC will hold by full generation, up to now, progress along with semiconductor technology, make the function of PC more and more stronger, spendable peripheral equipment is also more and more simultaneously, especially, along with the prosperity with world-wide web (Internet) of Local Area Network (LAN), Intranet (Intranet), the usage quantity that is anticipated that peripheral equipment and kind be volumeization and complicated more.
The purpose of each peripheral equipment development is different with the object of application, residing environment is also different, so when design, should need to use different interfaces according to different considerations, therefore, if will use different interfaces when replying different peripheral equipments, its interface number and line will be very huge and complexity in a PC, therefore, a kind of USB (Universal SerialBus) interface specification is just met the tendency to develop and.
So-called USB interface specification, be meant and make various peripheral equipments all use unified and the next interconnective interface of standard mode, so, not only greatly the installation of simplified system be connected, and in computer, also do not need to reserve too many space special interface card is installed, in addition, also there is PnP (Plug and Play) function at the USB interface.
Yet, the present applied scope of USB interface specification, all only limit to provide the be connected use of computer with peripheral equipment, it is powerless that the function of (for example notebook computer is connected with desktop computer) is provided for providing between at least two computers, therefore, certainly will become under the situation of following popular main shaft to it based on the USB interface specification is measurable, the inventor wishes to provide bus connection method and the device of the USB interface specification of a kind of simple and tool convenience of user to carry out line action between computer, needing to avoid use cost expensive and install the network element that sets up commonly used of complexity.
Summary of the invention
The purpose of this invention is to provide and a kind ofly can carry out data bus connection method between computer that data pass to receive according to the USB interface specification.
Another object of the present invention provides a kind ofly can carry out data bus connection device between computer that data pass to receive according to the USB interface specification.
The present invention is achieved in that data bus connection method between a kind of computer, it is at least first to fourth identification code that is defined according to USB (Universal SerialBus) interface specification, and make that can carry out data between at least one first and second computer passes receipts: this method comprises: a) make this first computer enter a transmission data mode and produce output one and comprise the information (message) of first identification code to a logical and control module; B) this logical and control module is replied this first identification code, and this logical and control module produces output one and comprises in information to the second computer of second identification code, enters one so that this second computer is replied this second identification code and receives data mode; C) make this first computer produce output one and comprise the information of the 3rd identification code and destination data to this logical and control module; And d) this logical and control module is replied the 3rd identification code, temporary this destination data of this logical and control module and produce output one information that comprises the 4th identification code to this second computer, thus make second computer reply the 4th identification code and import this destination data;
Wherein these comprise the information of first to fourth identification code, all are respectively a package (Package) that comprises first to fourth identification code.
Wherein this first identification code that meets the definition of USB specification can be the steering order that a preparation transmits data.
Wherein this second identification code that meets the definition of USB specification can be the steering order that a preparation receives data.
Wherein this 3rd identification code that meets the definition of USB specification can be the steering order that transmits data at the beginning.
Wherein this 4th identification code that meets the definition of USB specification can be and passes the steering order that receives certificate at the beginning.
Wherein this logical and control module can comprise a working storage.
Wherein this working storage can be a data sheet to input/output (i/o) buffer.
Wherein this working storage can be one group of data double-way input/output (i/o) buffer.
Wherein this method more can comprise: e) make this second computer enter this transmission data mode and also produce this information (message) that comprises first identification code of output to this logical and control module; F) reply this first identification code, this logical and control module produces output, and this comprises in information to the first computer of second identification code, so that this first computer is replied this second identification code and entered the reception data mode; G) make this second computer produce output and comprise the information of the 3rd identification code and destination data to this logical and control module; And h) reply the 3rd identification code, this comprises temporary this destination data of this logical and control module and generation output in information to the first computer of the 4th identification code, so that this first computer is replied the 4th identification code and imported this destination data.
Another kind of implementation of the present invention is that it can provide the interface specification with USB (Universal Serial Bus), makes that can carry out data between at least one first and second computer passes receipts; This device comprises: the first interface control unit, the described first interface control unit is one to meet the interface control unit of USB specification, and be electrically connected to one and be in first computer that transmits data mode, this first interface control unit can be replied the information (message) and one that one of this first output that computer produces comprises first identification code respectively and be comprised the information of the 3rd identification code and destination data, and enters the one first and the 3rd control model respectively; One interface logic unit, this interface logic unit can be one and has little processing and control element (PCE) of setting the logic state function, be electrically connected on this first interface control unit, it can reply this first and the 3rd control model respectively, and produces output the one second and the 4th logic state; An and second contact surface control module, described second contact surface control module is one to meet the interface control unit of USB specification, be electrically connected on this interface logic unit and this second computer, can reply the second and the 4th logic state, and enter the second and the 4th control model respectively, and produce output one information that comprises second identification code and the information that comprises the 4th identification code respectively to this second computer, make second computer enter one respectively and receive data mode and import this destination data.
Wherein first computer package contains a boundary element that meets the USB specification, and it is electrically connected on the first interface control unit.
Wherein second contact surface includes a boundary element that meets the USB specification, and it is electrically connected on the second contact surface control module.
Wherein the first interface control unit is one to include the interface control unit of the connector that meets the USB specification.
Wherein the second contact surface control module is one to include the interface control unit of the connector that meets the USB specification.
The information that wherein comprises first to fourth identification code all is respectively a package (Package) that comprises first to fourth identification code.
First identification code that wherein meets the definition of USB specification can be the steering order that a preparation transmits data.
Second identification code that wherein meets the definition of USB specification can be the steering order that a preparation receives data.
The 3rd identification code that wherein meets the definition of USB specification can be the steering order that transmits data at the beginning.
The 4th identification code that wherein meets the definition of USB specification can be the steering order that receives data at the beginning.
Wherein the second contact surface control module can be replied and is in that second computer institute that transmits data mode produces the information that comprises first identification code exported respectively and this comprises the information of the 3rd identification code and destination data, and enters the first and the 3rd control model respectively.
Wherein this interface logic unit can be replied the first and the 3rd control model respectively, and produces output the second and the 4th logic state.
Wherein the first interface control unit can be replied the second and the 4th logic state respectively, and enter the second and the 4th control model respectively, and generation output comprises the information of second identification code and comprises in information to the first computer of the 4th identification code respectively, this first computer is entered receive data mode and import this destination data.
Wherein this interface logic unit can comprise: the first interface logic unit, be electrically connected on the first interface control unit, and it can reply the first and the 3rd control model respectively, and produces output the first and the 3rd logic state; And the second contact surface logical block, being electrically connected on the first interface logic unit, it can reply the first and the 3rd logic state respectively, and produces output the one second and the 4th logic state.
Wherein the second contact surface control module can be replied and is in second computer institute that transmits data mode and produce the information that comprises first identification code of output respectively and comprise the information of the 3rd identification code and destination data, and enters the first and the 3rd control model respectively.
Wherein the second contact surface logical block can be replied the first and the 3rd control model respectively, and produces output the first and the 3rd logic state.
Wherein the first and the 3rd logic state can be replied in the first interface logic unit, and sets output the second and the 4th logic state respectively.
Wherein the first interface control unit can be replied the second and the 4th logic state respectively, and enter this second and the 4th control model respectively, and generation output comprises the information of second identification code and comprises in information to the first computer of the 4th identification code respectively, first computer is entered receive data mode and input destination data.
Wherein the data bus connection device more can comprise a working storage between this computer, and it is in order to temporary destination data.
Wherein this working storage can be a data sheet to input/output (i/o) buffer.
Wherein this working storage can be one group of data double-way input/output (i/o) buffer.
Description of drawings
Fig. 1 is the virtual block schematic diagram of preferred embodiment of the present invention;
Fig. 2 is the schematic flow sheet of the preferable implementation method of the present invention;
Fig. 3 is a preferred embodiment method structure block schematic diagram of the present invention;
Fig. 4 is the schematic appearance of apparatus of the present invention.
Embodiment
At first, because the data that the present invention utilizes the USB interface specification to carry out between the computer of phase interconnection line transmit and reception work, therefore, the inventor just considers and should add the identification code that meets the USB interface specification in the information (message) (or package (package)) of wire net, (for example debate the other kind of desiring to move, at least include and prepare to transmit data, prepare to receive data, begin to transmit data and begin to receive data), and distinguish that identification code and friendship hold the work of (handshaking), transferring to the logical and control module that is arranged between each computer comes integration to carry out (these identification codes also can be considered the virtual endpoint (endpoint) of being located at this logical and control module), thus, when carrying out data transmission between the line computer, each line computer can be only has the situation below of requirement of sending (request) to interrupt normal procedure and handle the transmission of line data or receive matters at this logical and control module; Simultaneously, do not send when requiring in this logical and control module, each line computer then still can be dealt with the normal procedure of oneself separately.
In other words, can make this logical and control module be modeled to " peripheral equipment " of each line computer, feasible each line computer that is connected with this logical and control module by the USB interface specification, separately its exclusive " peripheral equipment " is carried out " operation " or receives " replying " seemingly, the data of finishing between itself and " peripheral equipment " transmit or receive, and, by virtually distinguishing identification code and friendship for the logical and control module integration between " peripheral equipment " and hold action by this, the problem that this can solve smoothly and can't utilize the existing USB interface that possesses of computer to finish between at least two computers at present to interconnect (for example notebook computer and desktop computer line) mutually, and take into account between each line computer separately independently operational paradigm.
In addition, with said method (promptly, in the information of wire net, add the identification code that meets the USB interface specification, also can be considered the virtual endpoint of being located in this logical and control module), to be connected media with entity between this logical and control module only be two entity wiring even if respectively have the line computer of USB interface specification, and it still can utilize the USB interface specification easily and make and finish all data between each computer and transmit and receive action.
Disclose preferred embodiment notion of the present invention for further knowing, now illustrate as follows:
Desiring to carry out computer if any one first computer and second computer is connected, the line action kind that then it carried out should include at least: prepare to transmit data, prepare to receive data, begin to transmit data and begin to receive four kinds of data etc., so, just can be respectively with four group identification code (Ea0, Eb0), (Ea1, Eb1), (Ea2, Eb2), (Ea3, Ea3) represent this four kinds of actions, and this four group identification code is incorporated in the information (message) (or package (Package)) of wire net, afterwards, this logical and control module can produce corresponding control action according to being added on the identification code kind in this information; Certainly, when these identification codes being considered as be located at the virtual endpoint (endpoint) in this logical and control module, when can easilier understanding this logical and control module institute's role between each line computer.
Consult Fig. 1, it is for the virtual block schematic diagram of preferred embodiment notion of the present invention; In Fig. 1, include: one first computer and the second computer A, B, logical and control module 10, one group is the working storage 11 of data double-way input/output (i/o) buffer, four group identification codes (being virtual endpoint) (Ea0, Eb0), (Ea1, Eb1), (Ea2, Eb2), (Ea3, Ea3) and hand over and to hold (handshaking) line HL: therein, when the first computer A desires to transmit data and gives this second computer B, the first computer A must send one in advance and send a signal to virtual endpoint Ea0 place, makes this logical and control module 10 know that this first computer A is in one and prepares to transmit data mode; Simultaneously, hold (handshaking) line HL by this friendship, this logical and control module 10 just carries out a friendship and holds action, and this virtual endpoint Eb1 place produces among look-at-me to the second computer B certainly, interrupts normal procedure and enter receiving data mode surely fully to require this second computer B; Moreover, when the corresponding virtual endpoint Ea2 of this first computer A operates and is monitored by this logical and control module 10, this logical and control module 10 is known just that this first computer A enters and is transmitted data mode and its self-virtualizing end points Ea2 place at the beginning and send the signal that comes to and comprise a destination data, so, this logical and control module 10 is about to this destination data and is stored in the working storage 11 of this two-way input/output (i/o) buffer, afterwards, hand over again via this logical and control module 10 and to hold action and to make this destination data from this virtual endpoint Eb3 output, this second computer B just enter receive at the beginning data mode and certainly this virtual endpoint Eb3 place import this destination data.
In like manner, when this second computer B desired to transmit data and gives this first computer A, this second computer B must send one in advance and send a signal to this virtual endpoint Eb0 place, made this logical and control module 10 know that the second computer B is in one and prepares to transmit data mode; Simultaneously, hold line HL by this friendship, this logical and control module 10 just carries out a friendship and holds action, and this virtual endpoint Eb1 place produces among look-at-me to the first computer A certainly, interrupts normal procedure and enter receiving data mode surely fully to require the first computer A; Moreover, when the second computer B operates virtual endpoint Eb2 and is monitored by this logical and control module 10, this logical and control module 10 is known just that this second computer B enters and is transmitted data mode and its at the beginning to send signal to from this virtual endpoint Eb2 place be this destination data, so, this logical and control module 10 is about to this destination data and is stored in the working storage 11 of this two-way input/output (i/o) buffer, afterwards, hand over again via logical and control module 10 and to hold action and to make this destination data from this virtual endpoint Eb3 output, this first computer A just enter receive at the beginning data mode and certainly this virtual endpoint Eb3 place import this destination data.
For further disclosing the method and apparatus of implementing the preferable notion of aforementioned the present invention, please consult Fig. 2 earlier, it is the schematic flow sheet of a preferred embodiment method of the present invention.Wherein, transmit destination data to the second computer with first computer earlier, and afterwards this second computer again row transmit this destination data and return the flow process action of this first computer and be example, believe through after so illustrating, should expose the spiritual place of invention of the present invention fully, certainly, in Fig. 2, can include the following step:
Steps A 20: beginning
Steps A 21: make this first computer enter a transmission data mode and produce output one and comprise the information (message) of first identification code to a logical and control module; Wherein, this first identification code that meets the definition of USB specification can be the steering order that data are sent in a preparation;
Steps A 22: reply first identification code, this logical and control module produces output one information that comprises second identification code to this second computer, enters one so that this second computer is replied this second identification code and receives data mode; Wherein, second identification code that meets USB specification definition can be a steering order of preparing to receive data.
Steps A 23: make first computer produce output one and comprise the information of the 3rd identification code and a destination data to this logical and control module; Wherein, the working storage that comprised of this logical and control module can be for temporary this destination data; This working storage can be one group of data double-way input/output (i/o) buffer, and the 3rd identification code that meets USB specification definition can be the steering order that begins to transmit data;
Step 24: reply the 3rd identification code, the logical and control module produces output one and comprises in information to the second computer of the 4th identification code, so that second computer is replied the 4th identification code and imported this destination data; Wherein, this 4th identification code that meets the definition of USB specification can be the steering order that receives data at the beginning.
Step 25: this second computer is entered transmit data mode and produce output to comprise the information (message) of first identification code to this logical and control module; Wherein, this first identification code that meets the definition of USB specification can be the steering order that a preparation transmits data;
Step 26: adapt to first identification code, this logical and control module produces output and comprises in information to the first computer of second identification code, so that this first computer is replied second identification code and entered this reception data mode; Wherein, this second identification code that meets the definition of USB specification can be the steering order that a preparation receives data;
Step 27: make second computer produce output and comprise the information of the 3rd identification code and a destination data to this logical and control module, wherein, this working storage that this logical and control module is comprised can supply temporary destination data, and this 3rd identification code that meets the definition of USB specification can be the steering order that transmits data at the beginning;
Step 28: reply the 3rd identification code, this logical and control module produces output, and this comprises in information to the first computer of the 4th identification code, so that this first computer is replied the 4th identification code and imported this destination data; Wherein, this 4th identification code that meets the definition of USB specification can be the steering order that receives data at the beginning; And
Steps A 29: finish.
Again, be positioned at the embodiment of the logical and control module between the line computer among the present invention, then please cooperate block schematic diagram shown in Figure 3; Can obtain more deep understanding to the present invention.
Consult shown in Figure 3, preferred embodiment apparatus structure square exemplary plot of the present invention, include among Fig. 3: one first computer and the second computer A, B, data bus connection device 30 between one computer, one first interface control unit 31, one first interface logic unit 32, one second contact surface logical block, 33, one second contact surface control modules are the working storage 35 of data double-way input/output (i/o) buffer for 34, one groups, the entity line La that meets the USB electrical specification, Lb, four group identification codes (going out can be considered four groups of virtual endpoints) (Ea0, Eb0), (Ea1, Eb1), (Ea2, Eb2), (Ea3, Eb3) and hand over and to hold (handshaking) line HL.
Be that example is done an explanation to transmit data to the second computer B earlier: in Fig. 3 from the first computer A, these first interface control unit, 31 electrical wirings to are in the first computer A place that transmits data mode, this first interface control unit 31 can be replied the information (message) and one that one of this first computer output that A produces comprises first identification code respectively and be comprised the information of the 3rd identification code and destination data, and enters the first and the 3rd control model respectively; Certainly, the first interface logic unit 32 then can be replied the first and the 3rd control model respectively, and sets output the first and the 3rd logic state; Can reply the 3rd control model as for this working storage 35, and temporary firmly this destination data.
Afterwards, second contact surface logical block 33 makes can reply the first and the 3rd logic state, and sets output the second and the 4th logic state respectively; As for second contact surface control module 34, then can reply the second and the 4th logic state respectively, and enter the one second and the 4th control model respectively, and produce output one information and one that comprises second identification code respectively and comprise among information to the second computer B of the 4th identification code, make this second computer B enter one respectively and receive data mode and import this destination data from working storage 35 places.
The preferably, wherein these comprise the information of first to fourth identification code, all are respectively a package (package) that comprises first to fourth identification code; And first, second and third that meets USB specification definition and the 4th identification code (being virtual endpoint) can carry out one preparing to transmit data respectively, prepare the steering order that receives data, begin to pass data and begin to receive data.
In like manner, the operation program of this second computer B transmission data to the first computer A also transmits data to the second computer B as the first computer A certainly, is no longer given unnecessary details at this.
Schematic appearance as for apparatus of the present invention, then referring to shown in Figure 4, wherein, the entity transmission line La that meets the USB interface specification of data bus connection device 30 both sides, place, Lb two ends between this computer, more can comprise connector plug Ca, a Cb who meets the USB interface specification, and this connector plug Ca, Cb are respectively in order to connect first and second computer A, B.
Certainly, the first interface control unit 31, the first interface logic unit 32, second contact surface logical block 33, second contact surface control module 34 and this are organized the working storage 35 into the data double-way input/output (i/o) buffer, (Application Specific Integrated Circuit ASIC), uses to make things convenient for the user can to make a special-purpose special IC.
In sum,, can utilize the prior USB interface, promptly can change low cost and convenient mode of installing, finish the problem of data bus connection transmission between computer and computer easily by disclosed method and apparatus.
Claims (31)
1, data bus connection method between a kind of computer, it is at least first to fourth identification code that is defined according to the USB interface specification, and make that can carry out data between at least one first and second computer passes receipts: this method comprises: a) make this first computer enter a transmission data mode and produce output one and comprise in information to the one logical and control module of first identification code; B) this logical and control module is replied this first identification code, and this logical and control module produces output one and comprises in information to the second computer of second identification code, enters one so that this second computer is replied this second identification code and receives data mode; C) make this first computer produce output one and comprise the information of the 3rd identification code and destination data to this logical and control module; And d) this logical and control module is replied the 3rd identification code, temporary this destination data of this logical and control module and produce output one information that comprises the 4th identification code to this second computer, thus make second computer reply the 4th identification code and import this destination data;
2, data bus connection method between computer as claimed in claim 1, it is characterized in that: wherein these comprise the information of first to fourth identification code, all are respectively a package that comprises first to fourth identification code.
3, data bus connection method between computer as claimed in claim 1 is characterized in that: wherein this first identification code that meets the definition of USB specification can be the steering order that a preparation transmits data.
4, data bus connection method between computer as claimed in claim 1 is characterized in that: wherein this second identification code that meets the definition of USB specification can be the steering order that a preparation receives data.
5, data bus connection method between computer as claimed in claim 1 is characterized in that: wherein this 3rd identification code that meets the definition of USB specification can be the steering order that transmits data at the beginning.
6, data bus connection method between computer as claimed in claim 1 is characterized in that: wherein this 4th identification code that meets the definition of USB specification can be and passes the steering order that receives certificate at the beginning.
7, data bus connection method between computer as claimed in claim 1 is characterized in that: wherein this logical and control module can comprise a working storage.
8, data bus connection method between computer as claimed in claim 7 is characterized in that: wherein this working storage can be a data sheet to input/output (i/o) buffer.
9, data bus connection method between computer as claimed in claim 7 is characterized in that: wherein this working storage can be one group of data double-way input/output (i/o) buffer.
10, data bus connection method between computer as claimed in claim 7, it is characterized in that: wherein this method more can comprise: e) make this second computer enter this transmission data mode and also produce this information that comprises first identification code of output to this logical and control module; F) reply this first identification code, this logical and control module produces output, and this comprises in information to the first computer of second identification code, so that this first computer is replied this second identification code and entered the reception data mode; G) make this second computer produce output and comprise the information of the 3rd identification code and destination data to this logical and control module; And h) reply the 3rd identification code, this comprises temporary this destination data of this logical and control module and generation output in information to the first computer of the 4th identification code, so that this first computer is replied the 4th identification code and imported this destination data.
11, data bus connection device between a kind of computer, it can provide the interface specification with USB, makes that can carry out data between at least one first and second computer passes receipts; It is characterized in that: this device comprises: the first interface control unit, the described first interface control unit is one to meet the interface control unit of USB specification, and be electrically connected to one and be in first computer that transmits data mode, this first interface control unit can be replied the information and one that one of this first output that computer produces comprises first identification code respectively and be comprised the information of the 3rd identification code and destination data, and enters the one first and the 3rd control model respectively; One interface logic unit, this interface logic unit can be one and has little processing and control element (PCE) of setting the logic state function, be electrically connected on this first interface control unit, it can reply this first and the 3rd control model respectively, and produces output the one second and the 4th logic state; An and second contact surface control module, described second contact surface control module is one to meet the interface control unit of USB specification, be electrically connected on this interface logic unit and this second computer, can reply the second and the 4th logic state, and enter the second and the 4th control model respectively, and produce output one information that comprises second identification code and the information that comprises the 4th identification code respectively to this second computer, make second computer enter one respectively and receive data mode and import this destination data.
12, data bus connection device between computer as claimed in claim 11 is characterized in that: wherein first computer package contains a boundary element that meets the USB specification, and it is electrically connected on the first interface control unit.
13, data bus connection device between computer as claimed in claim 11 is characterized in that: wherein second computer package contains a boundary element that meets the USB specification, and it is electrically connected on the second contact surface control module.
14, data bus connection device between computer as claimed in claim 11 is characterized in that: wherein the first interface control unit is one to include the interface control unit of the connector that meets the USB specification.
15, data bus connection device between computer as claimed in claim 11 is characterized in that: wherein the second contact surface control module is one to include the interface control unit of the connector that meets the USB specification.
16, data bus connection device between computer as claimed in claim 11 is characterized in that: wherein comprise the information of first to fourth identification code, all be respectively a package that comprises first to fourth identification code.
17, data bus connection device between computer as claimed in claim 11 is characterized in that: first identification code that wherein meets the definition of USB specification can be the steering order that a preparation transmits data.
18, data bus connection device between computer as claimed in claim 11 is characterized in that: second identification code that wherein meets the definition of USB specification can be the steering order that a preparation receives data.
19, data bus connection device between computer as claimed in claim 11 is characterized in that: the 3rd identification code that wherein meets the definition of USB specification can be the steering order that transmits data at the beginning.
20, data bus connection device between computer as claimed in claim 11 is characterized in that: the 4th identification code that wherein meets the definition of USB specification can be the steering order that receives data at the beginning.
21, data bus connection device between computer as claimed in claim 11, it is characterized in that: wherein the second contact surface control module can be replied and is in that second computer institute that transmits data mode produces the information that comprises first identification code exported respectively and this comprises the information of the 3rd identification code and destination data, and enters the first and the 3rd control model respectively.
22, data bus connection device between computer as claimed in claim 21 is characterized in that: wherein this interface logic unit can be replied the first and the 3rd control model respectively, and produces output the second and the 4th logic state.
23, data bus connection device between computer as claimed in claim 22, it is characterized in that: wherein the first interface control unit can be replied the second and the 4th logic state respectively, and enter the second and the 4th control model respectively, and generation output comprises the information of second identification code and comprises in information to the first computer of the 4th identification code respectively, this first computer is entered receive data mode and import this destination data.
24, data bus connection device between computer as claimed in claim 11, it is characterized in that: wherein this interface logic unit can comprise: the first interface logic unit, be electrically connected on the first interface control unit, it can reply the first and the 3rd control model respectively, and produces output the first and the 3rd logic state; And the second contact surface logical block, being electrically connected on the first interface logic unit, it can reply the first and the 3rd logic state respectively, and produces output the one second and the 4th logic state.
25, data bus connection device between computer as claimed in claim 24, it is characterized in that: wherein the second contact surface control module can be replied and is in second computer institute that transmits data mode and produce the information that comprises first identification code of output respectively and comprise the information of the 3rd identification code and destination data, and enters the first and the 3rd control model respectively.
26, data bus connection device between computer as claimed in claim 25 is characterized in that: wherein the second contact surface logical block can be replied the first and the 3rd control model respectively, and produces output the first and the 3rd logic state.
27, data bus connection device between computer as claimed in claim 26 is characterized in that: wherein the first and the 3rd logic state can be replied in the first interface logic unit, and sets output the second and the 4th logic state respectively.
28, data bus connection device between computer as claimed in claim 27, it is characterized in that: wherein the first interface control unit can be replied the second and the 4th logic state respectively, and enter this second and the 4th control model respectively, and generation output comprises the information of second identification code and comprises in information to the first computer of the 4th identification code respectively, first computer is entered receive data mode and input destination data.
29, data bus connection device between computer as claimed in claim 11, it is characterized in that: wherein the data bus connection device more can comprise a working storage between this computer, and it is in order to temporary destination data.
30, data bus connection device between computer as claimed in claim 29 is characterized in that: wherein this working storage can be a data sheet to input/output (i/o) buffer.
31, data bus connection device between computer as claimed in claim 29 is characterized in that: wherein this working storage can be one group of data double-way input/output (i/o) buffer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98125190 CN1127027C (en) | 1998-12-04 | 1998-12-04 | Data bus connection method and device between computers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98125190 CN1127027C (en) | 1998-12-04 | 1998-12-04 | Data bus connection method and device between computers |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1256461A CN1256461A (en) | 2000-06-14 |
| CN1127027C true CN1127027C (en) | 2003-11-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98125190 Expired - Lifetime CN1127027C (en) | 1998-12-04 | 1998-12-04 | Data bus connection method and device between computers |
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| Country | Link |
|---|---|
| CN (1) | CN1127027C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100354800C (en) * | 2004-06-15 | 2007-12-12 | 英业达股份有限公司 | Data accessing system and method |
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1998
- 1998-12-04 CN CN 98125190 patent/CN1127027C/en not_active Expired - Lifetime
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| Publication number | Publication date |
|---|---|
| CN1256461A (en) | 2000-06-14 |
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