EP1370925A2 - Verfahren und verbindungssystem zur herstellung einer datenverbindung von externen peripheriegeräten über unterschiedliche schnittstellen - Google Patents
Verfahren und verbindungssystem zur herstellung einer datenverbindung von externen peripheriegeräten über unterschiedliche schnittstellenInfo
- Publication number
- EP1370925A2 EP1370925A2 EP02737749A EP02737749A EP1370925A2 EP 1370925 A2 EP1370925 A2 EP 1370925A2 EP 02737749 A EP02737749 A EP 02737749A EP 02737749 A EP02737749 A EP 02737749A EP 1370925 A2 EP1370925 A2 EP 1370925A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- peripheral
- computer
- connector
- connection
- connection system
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/38—Information transfer, e.g. on bus
- G06F13/40—Bus structure
- G06F13/4063—Device-to-bus coupling
- G06F13/4068—Electrical coupling
- G06F13/4072—Drivers or receivers
Definitions
- the invention relates to a method for establishing a data connection between a peripheral device and a computer unit, in which one via a computer-side connection port and a peripheral-side connection port
- the invention also relates to a connection system for carrying out the method.
- a "bus" is the combination of a large number of parallel lines to which several function blocks or components of the computer or external peripheral devices are connected.
- US Pat. No. 6,131,125 describes a data cable, the two ends of which are provided with plugs of different interface technologies, a circuit for protocol translation from one interface technology to the other being integrated in the data cable.
- the circuit draws its power from a line through the first interface.
- the type of energy Supply in particular the voltage level, differs significantly between the different interface technologies, so that the power supply provided must be adapted to the operating voltage of the circuit for protocol translation.
- US Pat. No. 6,131,125 does not disclose how this adaptation is to be carried out and, in particular, an undersupply of the circuit to be compensated for.
- the utility model DE 297 07 960 U1 describes an external peripheral device for personal computer systems, the computer connected to the peripheral device providing the supply source for the operating voltage required for the peripheral device.
- the user chooses by
- Switching device on the peripheral device itself from the desired supply source. Furthermore, this peripheral device only covers one interface with its power supply options (PCMCIA interface). A conversion of the data connection into other interface technology on the computer-side connection port is not disclosed.
- the conversion technology implemented in the data connection also provides the interface technology-dependent type of power supply, in particular the voltage level, provided via a computer-side power supply line
- Form of a control signal is coded and the coded control signals for peripheral detection of the energy supply are sent to an analysis device in the peripheral device via a control signal line, and then the analysis device recognizes the type of energy supply provided by the computer and the feedback based on the power supply and the coded control signals Form of an activation signal to the Conversion device sends.
- a line for a data transfer is then activated by the conversion device and a data transfer is made possible via the now existing data connection between the computer-side data source / sink and the peripheral data source / sink.
- Peripherals can external mass storage such as CD-ROM, CD / RW, DVD, hard drives, communication devices such as Modems, printers, scanners or other external accessories.
- external mass storage such as CD-ROM, CD / RW, DVD, hard drives, communication devices such as Modems, printers, scanners or other external accessories.
- energy supply is understood to mean the current and / or voltage supply, the respective amplitude of the voltage or of the current being predetermined and to be selected by the interface technology used.
- pin assignment is understood to mean the assignment and wiring of bus power lines, control signal lines or data lines of all types to the pins of the computer and peripheral connectors, the
- Number of pins and the pin numbering depends on the selected interface technology. The same applies to the pin numbering and pin assignment of the connection ports corresponding to the plugs.
- rear bus power line is understood to mean any power supply and / or control signal line starting from the peripheral device and directed to the conversion device.
- pin assignments and pin numbers mentioned in the text refer exclusively to the standard pin assignment of the peripheral-side Con-36 connector chosen as an example.
- the invention combines the different interface technologies in a single peripheral connection by using a special pin assignment of the peripheral connector system.
- a widespread 36-pin miniature plug-in system is used (e.g. various variants of type MCS36F, MCD36F, MC36M and MCS36M from the Taiwanese manufacturer WingTech Enterprise Co. Ltd.), further simply called Con36 connector and Con36 socket, whereby the Con36 connector means the peripheral connector and the Con36 connector the peripheral connector.
- the energy supply to the conversion device is optionally ensured via at least one computer-side energy supply line or via rear bus power lines of low voltage originating from the peripheral device or rear bus power lines of high voltage, the conversion device independently depending on the computer-side interface technology of the connector plug the required voltage selects.
- the conversion device can access these three power supply lines individually or in combination and thus ensure an interface technology-independent power supply for the conversion device.
- the energy supply to the peripheral device by the peripheral energy source is continuously monitored by the analysis device and, in the event of an undersupply of the peripheral device, the voltage provided by the computer via the BusPower line is used to supply power to the peripheral device. If the peripheral power supply is sufficient, a signal is transmitted from the analysis device to the conversion device via a high voltage rear BusPower line.
- connection system consists of a conversion device, a data connection and an analysis device, the conversion device comprising a data protocol converter, electronics for measuring the energy supply of the conversion device and a
- a coding device for coding the energy supply made available via a computer-side power supply line, the coded control signals being analog or digital signals.
- an interface-dependent assignment of the pins of the computer-side connector is converted by the conversion device into a predetermined assignment of the pins of the peripheral-side connector and the peripheral-side connection port.
- the coding of the connection ports encodes the type of power supply provided by the computer.
- the analysis device of the peripheral device detects the internal power electronics and the coded control signals sent by the conversion device to identify the
- Lines of computer-provided type of energy supply are used in the peripheral connector for the computer-side power supply and its coding.
- the power supply of the peripheral device is measured simultaneously with the recognition of the type of power supply provided by the computer.
- the power supply provided by the computer via the low voltage BusPower line is used to supply power to the peripheral device.
- a switch-on signal is sent to the conversion device via the rear BusPower line, with the switch-on signal in the conversion device being used to assign the pins for data transmission and so that the data lines are activated.
- the analysis device has internal electronics, with which measurements of the energy supply of the peripheral device are continuously carried out, and in the event of an energy shortage, an optical indication (e.g. LEDs) provides the operator with visual information.
- an optical indication e.g. LEDs
- the conversion device can optionally be integrated in the data cable, in the computer-side connector or in the peripheral-side connector.
- the peripheral connector is also shielded against electromagnetic radiation, the shield being connected to the cable shield and connected to the system ground (GND).
- the connection system according to the invention offers a variability in the interface technology used on the computer, in particular by a predetermined pin assignment of the peripheral connector. If a Con36 connector is used as the peripheral connector, pin 34 is either not connected according to the standard pin numbering or is connected directly or via a resistor to ground if a USB, CardBus, FireWire or iLink interface for the computer-side connector (15 ) is used. If a Con36 connector is used as the peripheral connector, pin 16 is connected to a voltage source, in particular to a 3.3V voltage source ("standby power”), regardless of the interface technology used for the computer-side connector.
- pin 35 is connected to a voltage source, in particular to a 5V voltage source.
- pin 33 is connected to ground via a resistor if there is no connection (“powerup") request or pin 33 is connected directly to ground when a powerup request is made.
- pin 36 is either connected to a voltage source, in particular to a 3.3V voltage and maximum 1.5A current source or to a voltage source, in particular a 5V voltage source and a maximum of 0.5A current source are connected.
- pin 17 can be connected to a voltage source, in particular to a 10V-25V voltage source.
- a voltage source in particular to a 10V-25V voltage source.
- One of the voltage sources in particular, can also be connected to pin 36 10V-25V voltage source converted to 5V
- pin 17 can be connected to a voltage source, in particular to a 10V-25V voltage source and optionally additionally to pin 36, one of the voltage sources, in particular 10V-25V- Voltage source after 5V converted voltage can be connected if a FireWire interface is used for the computer-side connector.
- pin 17 is connected to a voltage source, in particular to a 5V voltage source, via a resistor.
- pin 34 is connected to a voltage source, in particular to a 5V voltage source.
- Table 1 shows an example of the pin assignment of a Con-36 connector on the periphery in conjunction with the signal voltage on the computer for different interface technologies.
- the conversion device switches the corresponding pin lines depending on the interface.
- R to 5V means: connected via a resistor for a computer-side USB interface 5V (BusPower).
- Low / GND depends on the operating state of the corresponding line, whereby GND ground and “Low” means connected via a resistor to ground,
- Open / low means: either open, or directly or via a resistor
- Open / 5V means: either open, or connected to a 5V voltage that was converted from the 8V-30V voltage on pin 17.
- Fig. 2 diagram of the device according to the invention with signal lines and direction of data and
- a computer 12 is connected to a peripheral device 10 via a connecting cable 11.
- a connecting cable 11 Depending on the selected interface technology of the computer-side connection and the computer-side connector
- a conversion is carried out via a conversion device 13 in the direction of data transfer from one interface technology to the other, the assignment of the pins of the peripheral connector 16 being predetermined.
- the conversion device 13 also conveys the computer-provided energy supply and its nature in coded form for peripheral-side detection of the type of energy supply to an analysis device in the peripheral device 10, a coding device also converting the voltage of the computer-provided energy supply can make.
- the analysis device 14 recognizes the type of computer provided.
- the coding is carried out by different pin assignments and / or by different signals on the corresponding connections.
- the coding can be digital or analog.
- the connecting cable 11 is EMC-shielded with the usual measures, i.e. braided and / or foil shield for the cable routes and metal housing or metallized plastic housing for the housing of the plug 15, 16, with the conversion device in one of the two housings of the plug 15, 16
- the analysis device 14 is in the external peripheral device 10, e.g. integrated into a drive and can recognize the control signals of the conversion device 13 located in the peripheral connector 16 as to which interface technology the connection system is connected to the computer 12. As a result, it is possible to support all existing concepts for the power supply of the interface technologies used in the connecting cable 11.
- Different connecting cables 11 for connecting an external peripheral device 10 to a computer 12 can be used with all external peripheral devices 10 without additional hardware.
- the conversion device 13 in connection with the analysis device 14 in the external peripheral devices 10 can recognize, via the specially assigned connections of the peripheral connector 16, via which type of interface the external peripheral device 10 is connected to the computer 12 and can offer the required power supply concept.
- the conversion device 13 can be supplied with power via the computer 12 (“self-powered”) and / or via the external peripheral devices 10 (“bus-powered”). 2 shows an overview diagram of the device according to the invention with signal lines and direction of data and signal transfer. The device according to the invention is explained by way of example using a peripheral-side Con36 connector 16.
- the computer 12 is equipped with a card on the computer side
- Conversion device 13 monitors and switches the corresponding pin lines depending on the interface.
- the connecting cable 11 consists of the CardBus connector 15, the conversion electronics 13 and the Con36 connector 16.
- the data protocol converter 17 of the conversion device 13 converts the data protocol and the signals.
- the measurement of the energy supply applied to the conversion device 13 is continuously monitored by measuring electronics 29.
- the energy supply of the conversion device 13 is provided, on the one hand, via a connected energy supply line 33 to the provided computer supply to the conversion device 13.
- the power supply by the external peripheral device 10 (“bus powered”) in the case of a peripheral-side Con36 plug in connection with the conversion device 13 is connected to the pin 16 with a 3.3 V voltage source connected via the rear bus power line 27 at a low voltage ( standby power) is guaranteed and is also always available, so that the components in the conversion device 13 can be supplied which are necessary for generating the connection request, for example reacting to being plugged in at the computer interface ("plug-and-play ").
- the coding device 34 forwards the coded control signal for the peripheral device 10 to the analysis device 14 on a connecting line 30.
- the analysis device 14 decides whether a connection request can be carried out successfully.
- the lines 20, 21, 22 thus serve both the energy supply and the data transmission of the nature of the computer-side energy supply.
- An analysis of the coded control signals by the analysis device 14 is only carried out when the total power supplied by the computer and by the independent supply is the consumption of the peripheral device 10, stylized in the consumer resistor 26, and the consumption of the conversion device 13 does justice.
- the supply of the conversion device 13 via the line 28 which is switched on under this condition thus simultaneously serves as confirmation of the connection request.
- the conversion device 13 enables the data line 19 and thus enables data transmission via the now existing data connection 18, 19.
- the conversion device 13 thus has three power supply lines 27, 28, 33 at its disposal.
- the computer-side power supply line 33 and the rear bus power line low voltage 27 are directly connected to a plug connection.
- the rear high-voltage bus power line 28 is switched on as the third power supply line of the conversion device 13 by the analysis device 14, which can be used by the conversion device 14 individually or in combination , Regardless of the interface technologies used for the computer-side and peripheral-side connectors, a power supply for the conversion device is thus created.
- the peripheral device contains an energy supply device 25, which can be powered both by the computer-provided energy supply via the lines 20, 21, 22 and by an independent energy source 32, and which provides a constant supply to the conversion device 13 via a line 28 and a switched one Provides supply to the conversion device 13 via a further line 28, wherein the energy supply device 25 can carry out voltage conversions of the computer-side as well as the independent energy supplies.
- An energy supply device 29 in the conversion device 13 can thus be operated both with the computer-side energy supply via the line 33 and with the two peripheral-side supply lines 27, 28.
- control signal exchange between the conversion device 13 and the analysis device 14 and the redundant power supplies 25, 29 can do the right thing depending on the power supply of the peripheral device 10 and the type of power supply applied to the computer Energy supply concept of the peripheral device 10 and / or selected for the conversion device 13
- the computer-side CardBus level with the interface-dependent number of n lines 18 is connected to the computer-side data source sink 24, and on the peripheral side Con36 level with the predetermined number of k lines 19.
- the control lines 20, 21, 22 of the connecting cable 11 are according to FIGS The above statements are assigned as follows: the BusPower line for low voltages 20 is connected directly to the bus power of the Cardbus interface, the BusPower line for high voltages 21 is not connected, as is the coded control signal for the BusPower
- the peripheral device 10 consists of a peripheral data source or sink 23, an analysis device 14 and supply electronics 25 with an integrated DC / DC converter.
- the voltage on the BusPower line 20 is 3.3 V and also drops under load, but the peripheral device 10 and the conversion device 13 require 5 V. This is generated here in the peripheral device 10, and is made available again to the conversion device 13 via a rear control signal line 28, as well as a stabilized 3.3 V voltage generated on the rear bus line 27.
- the power supply of the conversion device 13 can thus Use both via the computer-side supply line 20 for voltage supply, and also the voltages converted by the peripheral device 10 to 5V and to 3.3V, the 5V voltage being able to be evaluated by the measuring electronics 29 as confirmation of connection of the peripheral device 10 in response to a connection request.
- the analysis device 14 in the peripheral device 10 evaluates the signals described above on the lines 20, 21, 22 and only answers a connection request on a separate connection line 30 if the selected interface technology provides sufficient power for the peripheral device 10 and provides the conversion device 13. If the same peripheral device 10 is connected to a USB interface, for example via a USB connection cable, the connection request remains unsuccessful because the USB bus power does not offer enough power, which the peripheral device 10 recognizes and responds accordingly.
- the pin 36 is connected by the conversion device 13 to a 3.3V voltage and a maximum 1.5A current source if there is a computer-side CardBus interface with a corresponding computer-side connector 15.
- the conversion device 13 applies a 5V voltage and a maximum of 1.0A current source to pin 36. If there is a computer-side USB interface with a corresponding computer-side connector 15, a 5V voltage source and a maximum of 0.5A current source are connected to pin 36.
- the external peripheral devices 10 can be supplied with voltage via the pin 17 of the peripheral-side Con36 connector with an 8V-30V voltage source with a maximum of 10W power, or also via one already in the conversion device 13 after
- the external peripheral devices 10 are switched on and off with the pin
- Pin 33 via a resistor which is connected to ground when the computer-side and peripheral-side connecting plugs 15, 16 are closed and no connection (“powerup") request has been made.
- Pin 33 is connected directly to ground by the conversion device 13 when the computer-side and Peripheral connector 15, 16 closed and a connection (“powerup") request made.
- the pin 33 remains "open” when the peripheral connector 16 is not closed, which the peripheral device can evaluate in order to switch off largely without power, for example to save energy.
- the conversion from one interface technology to another, taking into account the energy supply concept, is carried out with a multipole plug connection system and the conversion device 13 and analysis Device 14 made according to the invention, wherein a number of pin connections are used for a uniform data interface 18, 19 (for example ATA / IDE) and further connections are reserved for the various energy supply options 20, 21, their coding, and for further control signals.
- a uniform data interface 18, 19 for example ATA / IDE
- further connections are reserved for the various energy supply options 20, 21, their coding, and for further control signals.
- a line 20 is reserved for BusPower in the low voltage range up to 5V.
- a line 21 is also used for BusPower in the high voltage range above 5V.
- a control signal relating to the type of power supply provided by the computer, in particular the voltage level, is passed via a dedicated control line 22.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Computer Hardware Design (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Power Sources (AREA)
- Communication Control (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10114241 | 2001-03-22 | ||
DE10114241 | 2001-03-22 | ||
PCT/DE2002/001074 WO2002077828A2 (de) | 2001-03-22 | 2002-03-20 | Verfahren und verbindungssystem zur herstellung einer datenverbindung von externen peripheriegeräten über unterschiedliche schnittstellen |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1370925A2 true EP1370925A2 (de) | 2003-12-17 |
Family
ID=7678688
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02737749A Withdrawn EP1370925A2 (de) | 2001-03-22 | 2002-03-20 | Verfahren und verbindungssystem zur herstellung einer datenverbindung von externen peripheriegeräten über unterschiedliche schnittstellen |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1370925A2 (de) |
AU (1) | AU2002312715A1 (de) |
WO (1) | WO2002077828A2 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102013213597A1 (de) | 2013-07-11 | 2015-01-29 | Volkswagen Aktiengesellschaft | Verfahren zum Ausrüsten eines Fahrzeugs mit einem Steuergerät |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4884287A (en) * | 1988-04-01 | 1989-11-28 | Ncr Corporation | Converter device for interconnecting systems having different communication standards |
US5664204A (en) * | 1993-03-22 | 1997-09-02 | Lichen Wang | Apparatus and method for supplying power and wake-up signal using host port's signal lines of opposite polarities |
US6131125A (en) * | 1997-11-14 | 2000-10-10 | Kawasaki Lsi U.S.A., Inc. | Plug-and-play data cable with protocol translation |
-
2002
- 2002-03-20 WO PCT/DE2002/001074 patent/WO2002077828A2/de not_active Application Discontinuation
- 2002-03-20 AU AU2002312715A patent/AU2002312715A1/en not_active Abandoned
- 2002-03-20 EP EP02737749A patent/EP1370925A2/de not_active Withdrawn
Non-Patent Citations (1)
Title |
---|
See references of WO02077828A3 * |
Also Published As
Publication number | Publication date |
---|---|
WO2002077828A2 (de) | 2002-10-03 |
WO2002077828A3 (de) | 2003-08-28 |
AU2002312715A1 (en) | 2002-10-08 |
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