CN104101965A - Hybrid optoelectronic transceiver used for USB 3.0 interface and optical cable of hybrid optoelectronic transceiver - Google Patents
Hybrid optoelectronic transceiver used for USB 3.0 interface and optical cable of hybrid optoelectronic transceiver Download PDFInfo
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Abstract
A hybrid optoelectronic transceiver used for a USB 3.0 interface and an optical cable of the hybrid optoelectronic transceiver. The hybrid optoelectronic transceiver includes a USB3.0/3.1 electrical transceiver, a USB2.0 electrical transceiver and a USB data mixer, wherein the USB3.0/3.1 electrical transceiver completes forwarding of USB3.0 signals, the USB2.0 electrical transceiver completes forwarding of USB2.0 signals, and the USB data mixer, on the one hand, mixes the two kinds of USB signals, and on the other hand, performs de-mixing on received mixed USB data, and respectively transmits the two kinds of USB data to the two kinds of electrical transceivers. According to the hybrid optoelectronic transceiver of the invention, the USB3.0 and USB2.0 signals can be transmitted in the same data packet, and therefore, the number of used optical fibers can be decreased, and operation is convenient, and the use of the USB3.0 standard interface is simpler, and the USB3.0 standard interface can be authentically compatible with a USB2.0 format in use.
Description
Technical field
The present invention relates to photooptical data transmission field, be specifically related to a kind of New Active mixed electrical optical transceiver and optical cable thereof for USB3.0 interface.
Background technology
USB3.0 is also referred to as Super Speed USB, and it provides a standard interface for the various device being connected with PC or audio frequency/high-frequency apparatus.As USB interface of new generation, the feature of USB3.0/3.1 is that transfer rate is very fast, can reach 5Gbps/10Gbps in theory, than fast 10 times of the High Speed USB (referred to as USB2.0) of present 480Mbps.The profile of USB3.0/3.1 and present USB interface are basically identical, can compatible USB2.0 and USB1.1 equipment.
Compare current USB2.0 interface, USB3.0/3.1 has increased the more physical bus of multiple parallel pattern.On the basis of original 4 line structures (power supply, ground wire, 1 pair of data), USB3.0/3.1 has increased by 4 (two pairs) circuits again, for receiving and transmission Super Speed signal.Therefore no matter be in cable or on interface, always have 3 pairs of differential lines, a pair ofly in semiduplex mode, transmit USB2.0 signal, other two pairs of modes with full duplex are transmitted Super Speed signal.
The signal that transmits USB3.0 interface with optical fiber can run into two problems:
Existing USB3.0 compatibility the signal of USB2.0, and USB3.0 and USB2.0 characteristics of signals are different, therefore, are using USB3.0 interface to carry out signal transmission, need each with a pair of optical fiber, transmit the data of USB2.0 and USB3.0/3.1 specification.This transmission mode will increase the quantity of optoelectronic transceiver device, increases system power dissipation and cost, and is not easy to user's use.
The data of 2.USB2.0 are semiduplex mode, cannot directly pass through Optical Fiber Transmission, when directly USB2.0 data being transmitted, need to convert full duplex signaling to, and USB3.0 data are full-duplex mode, can directly transmit.
Therefore, how can the data of USB3.0/3.1 interface directly be carried out to photoelectricity transmission, reduce unnecessary optical fiber and photoelectric device, improve the convenience of using, the compatible USB2.0 data that wherein may comprise become the technical matters that prior art is needed solution badly simultaneously.
Summary of the invention
The object of the invention is to the optical cable that proposes a kind of novel USB3.0/3.1 mixed electrical optical transceiver and use it, can only adopt two optical fiber to realize the data of USB3.0/3.1 interface are directly transmitted.
For reaching this object, the present invention by the following technical solutions:
A mixed electrical optical transceiver for USB3.0 interface, is characterized in that:
One end of described mixed electrical optical transceiver is connected with standard USB3.0/3.1 interface, for upload and download USB3.0/3.1 data-signal and USB2.0 signal, the other end connects respectively generating laser and photoelectric detector, and described generating laser is connected respectively with described photoelectric detector the transmission that optical fiber carries out data;
Described mixed electrical optical transceiver comprises: USB3.0/3.1 electricity transceiver, and USB2.0 electricity transceiver and usb data mixer,
Wherein, described USB3.0/3.1 electricity transceiver connects described standard USB3.0/3.1 interface, for receiving USB3.0 differential electric signal on the one hand, process and adjudicate, and convert single-ended electrical signal to and export described usb data mixer to, receive on the other hand the single-ended electrical signal of described usb data mixer output, and convert USB3.0 differential signal to and export to standard USB3.0/3.1 data-interface;
Described USB2.0 electricity transceiver connects described standard USB3.0/3.1 interface, for a fermentation reception, meeting USB2.0 differential electric signal processes and adjudicates, and convert single-ended electrical signal to and export usb data mixer to, receive on the other hand the single-ended electrical signal of described usb data mixer output, and convert to and meet USB2.0 differential signal and export to standard USB3.0/3.1 data-interface;
Described usb data mixer, for receiving respectively on the one hand the signal from described USB3.0/3.1 electricity transceiver and described USB2.0 electricity transceiver, two kinds of signals are mixed, the blended data that formation comprises USB3.0/3.1 and USB2.0 also sends to generating laser, receive on the other hand the signal from photoelectric detector, the blended data solution receiving is mixed, and respectively USB3.0/3.1 data and USB2.0 data are sent to described USB3.0/3.1 electricity transceiver and described USB2.0 electricity transceiver.
Preferably, described mixed electrical optical transceiver also comprises USB2.0 half-duplex-full duplex converter, connects described USB2.0 electricity transceiver and described usb data mixer, for the half-duplex signal of USB2.0 is converted to full duplex signaling.
Preferably, described usb data mixer comprises: mix transmitter, for receiving respectively the signal from described USB3.0/3.1 electricity transceiver and described USB2.0 half-duplex-full duplex converter, two kinds of signals are mixed, form the blended data that comprises USB3.0/3.1 and USB2.0 and send to generating laser; Mix receiver, for receiving the signal from photoelectric detector, the blended data solution that comprises USB3.0/3.1 and USB2.0 receiving is mixed, USB3.0/3.1 data and USB2.0 data are sent to respectively to described USB3.0/3.1 electricity transceiver and described USB2.0 half-duplex-full duplex converter.
Further preferably, described mixing transmitter comprises: USB3.0 data sink and buffer memory, for receiving data that described USB3.0/3.1 electricity transceiver sends over and being buffered in high-speed cache in the mode of first-in first-out; USB2.0 data sink and buffer memory, be buffered in high-speed cache for receiving data that described USB2.0 electricity transceiver sends in the mode of first-in first-out; Mixture control, for the first fixed intervals from the data buffer storage of USB3.0 data sink and buffer memory and the data buffer storage of USB2.0 data sink and buffer memory in order by data reading and form new packet and exist and send buffer memory; Send buffer memory, for receiving described new data packets and offering mixing transmitter; Mix transmitter, for reading, send the described new data packets of buffer memory and send.
Preferably, described mixture control forms new packet by the following form of the data of reading:
| Data frame head | USB3.0 data | Segmentation marker | USB2.0 data | Data postamble |
Preferably, described mixing receiver comprises: mix receiver, for receiving blended data and existing in order, receive buffer memory; Receive buffer memory, for storing received blended data, and offer the mixed controller of solution; Separate mixed controller, for extracting blended data and solution blendes together USB3.0/3.1 data and USB2.0 data send to respectively USB3.0 data transmitter and buffer memory and USB2.0 data sink and buffer memory by the second fixed intervals from described reception buffer memory; USB3.0 data transmitter and buffer memory, the USB3.0/3.1 data that receive for buffer memory, and by the mode of first-in first-out, USB3.0/3.1 data are sent to USB3.0/3.1 electricity transceiver; USB2.0 data sink and buffer memory, the USB2.0 data that receive for buffer memory, and by the mode of first-in first-out, USB2.0 data are sent to USB2.0 electricity transceiver.
Preferably, transmission timer provides described the first fixed intervals to described mixture control, separate mixed controller Main Basis frame head, segmentation marker and postamble and produce described the second fixed intervals, receive timer and provide auxiliary timing signal to the mixed controller of described solution, with when the mixed controller of solution can not correctly be confirmed frame head and postamble, utilize auxiliary timing information to assist and produce frame head and postamble, to assist, produce described the second fixed intervals.
Further preferably, described transmission timer and described reception timer are same timer.
Preferably, described mixed electrical optical transceiver also has: laser driver, for receiving the data that will send, and drives described generating laser; Signal sensor, changes into into digital signal and sends to described usb data mixer for the ultra-weak electronic signal that described photoelectric detector is converted.
Simultaneously, the invention also discloses a kind of for transmit the fiberoptic cable system of USB3.0 and USB2.0 data simultaneously, comprise two optical fiber, mixed electrical optical transceiver described in above-mentioned any one, standard USB3.0/3.1 interface, generating laser and photoelectric detector, is characterized in that, described standard USB3.0/3.1 interface connects the mixed electrical optical transceiver described in any one in claim 1-9, and described mixed electrical optical transmitter is connected with optical fiber with described photoelectric detector through described generating laser respectively.
The present invention has unified the data-transmission mode of USB2.0, make it also become full-duplex mode, and conciliate mixed by the mixing that usb data mixer 23 has completed USB3.0 data and USB2.0, USB3.0 and USB2.0 can be transmitted in identical packet, saved number of fibers, easy operation, makes the use of USB3.0 standard interface more easy, makes USB3.0 standard interface real compatible USB2.0 form in the use.
Accompanying drawing explanation
Fig. 1 is the Optical Fiber Transmission schematic diagram of the USB3.0/3.1 data-interface with mixed electrical optical transceiver according to a particular embodiment of the invention;
Fig. 2 is the schematic diagram of the bidirectional optical fiber transmission with mixed electrical optical transceiver according to a particular embodiment of the invention;
Fig. 3 is the framework schematic diagram of mixed electrical optical transceiver according to a particular embodiment of the invention;
Fig. 4 is the framework schematic diagram of usb data mixer according to a particular embodiment of the invention;
Fig. 5 is the framework schematic diagram of the mixing transmitter in mixer of the present invention;
Fig. 6 is the framework schematic diagram of the mixing receiver in mixer of the present invention.
The technical characterictic that Reference numeral in figure refers to is respectively:
1, standard USB3.0/3.1 interface; 2, mixed electrical optical transceiver; 3, generating laser; 4, photoelectric detector; 5, optical fiber; 21, USB3.0/3.1 electricity transceiver; 22, USB2.0 electricity transceiver; 23, usb data mixer; 24, USB2.0 half-duplex-full duplex converter; 25, laser driver; 26, signal sensor; 27, mix transmitter; 28, mix receiver; 271, USB3.0 data sink and buffer memory; 272, USB2.0 data sink and buffer memory; 273, mixture control; 274, send buffer memory; 275, mix transmitter; 276, transmission timer; 281, mix receiver; 282, receive buffer memory; 283, separate mixed controller; 284, USB3.0 data transmitter and buffer memory; 285, USB2.0 data transmitter and buffer memory; 286, receive timer.
Embodiment
Below in conjunction with drawings and Examples, the present invention is described in further detail.Be understandable that, specific embodiment described herein is only for explaining the present invention, but not limitation of the invention.It also should be noted that, for convenience of description, in accompanying drawing, only show part related to the present invention but not entire infrastructure.
For backward compatible USB2.0, USB3.0/3.1 has adopted 9 stitch designs.Wherein the shape definition of 4 stitch and USB2.0 is all identical, and other 5 be to be that USB3.0 prepares specially.USB3.0 introduces full-duplex data transmission, and in 5 circuits, 2 are used for sending data, and 2 are used for receiving data, also having 1 is ground wire, that is to say that USB3.0 can synchronously carry out read-write operation at full tilt, and former USB version, USB2.0 and USB1.1 do not support full-duplex data transmission.
According to the definition of standard, referring to table 1,9 pinouts of USB3.0/3.1 are as follows.
Table 1 USB3.0/3.1 pinout
In existing standard, StdA_SSRX+/-and StdA_SSTX+/-be high-speed data reception (Super Speed) and the transmission differential pair of USB3.0/3.1, D-and D+ are USB2.0 signal differential pair.Wherein, SSRX+/-and SSTX+/-be full duplex signaling, sending and receiving adopts independently physical media, and D-and D+ are half-duplex signal, and sending and receiving adopts unified physical media, i.e. separately transmission.
USB3.1 is the extension agreement of USB3.0, is also a kind of high speed USB data transmission mode, therefore in this article, for the Apparatus and method for of USB3.0, is all applicable to USB3.1.
In standard agreement, USB3.0/3.1Super Speed and USB2.0 adopt independently media transmission.Therefore, in order to save the quantity of optical fiber and laser transmitting-receiving device, the present invention mixes rear transmission by USB3.0/3.1Super Speed signal and USB2.0 signal, so just can only with a pair of optical fiber, realize the transmission of the blended data based on unified USB3.0/3.1 data-interface.
Referring to Fig. 1, the Optical Fiber Transmission schematic diagram of the USB3.0/3.1 data-interface with mixed electrical optical transceiver is according to a particular embodiment of the invention disclosed.A kind of mixed electrical optical transceiver for USB3.0 interface, wherein one end is connected with standard USB3.0/3.1 interface 1, for upload and download USB3.0/3.1 data-signal and USB2.0 signal, the other end connects respectively generating laser 3 and photoelectric detector 4, and described generating laser 3 is connected respectively optical fiber 5 with described photoelectric detector 4 and carries out the transmission of data.
Wherein said generating laser 3, according to digital signal Emission Lasers, can be LD, the laser transmitting set that LED etc. is conventional.
Described photoelectric detector 4, for detection of light signal and be converted to electric signal, it will be appreciated by those skilled in the art that described photodiode can be any conventional Photoelectric Detection equipment such as photodiode.
Obviously, one skilled in the art will appreciate that to be one end of optical fiber 5 shown in Fig. 1, in other one end of optical fiber 5, there is the structure identical with Fig. 1.; referring to Fig. 2; the schematic diagram that discloses the bidirectional optical fiber transmission with mixed electrical optical transceiver according to a particular embodiment of the invention, the two ends of a pair of optical cable 5 have respectively two mixed electrical optical transceivers 2, realize the sending and receiving of USB3.0/3.1 and USB2.0 data.
Referring to Fig. 3, the framework schematic diagram of mixed electrical optical transceiver 2 is according to a particular embodiment of the invention disclosed, described mixed electrical optical transceiver 2 comprises USB3.0/3.1 electricity transceiver 21, USB2.0 electricity transceiver 22 and usb data mixer 23.
Wherein said USB3.0/3.1 electricity transceiver 21 is positioned at towards one end of described standard USB3.0/3.1 interface 1, for receiving on the one hand the USB3.0 differential electric signal that meets USB3.0 electrical code, receive SSTX, process and adjudicate, and convert single-ended electrical signal to and export usb data mixer 23 to, be responsible for to receive on the other hand the single-ended electrical signal that has mixed 23 outputs of usb data mixer, and convert the differential signal that meets USB3.0 electrical code to and export to standard USB3.0/3.1 data-interface 1.That is, referring to Fig. 3, described USB3.0/3.1 electricity transceiver 21 connected SSRX+/-and SSTX+/-.
Described USB2.0 electricity transceiver 22 is positioned at towards one end of described standard USB3.0/3.1 interface 1, be responsible for resolving and driving USB2.0 electric interfaces, for a fermentation, receive the differential electric signal that meets USB2.0 electrical code, process and adjudicate, and convert single-ended electrical signal to and export usb data mixer 23 to, receive on the other hand the single-ended electrical signal of described usb data mixer output, and convert the differential signal that meets USB2.0 electrical code to and export to standard USB3.0/3.1 data-interface 1.That is, referring to Fig. 3, described USB2.0 electricity transceiver 22 connected D+/-.
Described usb data mixer 23 is positioned at towards one end of described generating laser 3 and described photoelectric detector 4, for receiving respectively on the one hand the signal from described USB3.0/3.1 electricity transceiver 21 and described USB2.0 electricity transceiver 22, two kinds of signals are mixed, the blended data that formation comprises USB3.0/3.1 and USB2.0 also sends to generating laser 3, receive on the other hand the signal from photoelectric detector 4, the blended data solution that comprises USB3.0/3.1 and USB2.0 receiving is mixed, and respectively USB3.0/3.1 data and USB2.0 data are sent to described USB3.0/3.1 electricity transceiver 21 and described USB2.0 electricity transceiver 22.
Visible, the present invention adopts respectively two different electric transceivers to realize the sending and receiving of USB3.0/3.1 and USB2.0 data, utilize usb data mixer 23 to mix above-mentioned two kinds of different data, therefore, make the transmission that adopts a pair of optical fiber to realize the signal of two kinds of different-formats become possibility.
Preferably, described mixed electrical optical transceiver 2 also comprises USB2.0 half-duplex-full duplex converter 24, connect described USB2.0 electricity transceiver 22 and described usb data mixer 23, for the half-duplex signal of USB2.0 is converted to full duplex signaling, make like this signal transfer mode of USB2.0 and the signal transfer mode of USB3.0 unified, the signal and the USB3.0 signal that are further conducive to USB2.0 transmit on a pair of optical fiber.
Further, referring to Fig. 4, in a preferred embodiment, the framework schematic diagram of described usb data mixer 23 is disclosed, described usb data mixer 23 comprises: mix transmitter 27, be used for, for example, by USB3.0/3.1TX and USB2.0TX circuit, receive respectively the TX signal from described USB3.0/3.1 electricity transceiver 21 and described USB2.0 half-duplex-full duplex converter 24, two kinds of signals are mixed, form the blended data that comprises USB3.0/3.1 and USB2.0 and send to generating laser 3; Mix receiver 28, for receiving the signal from photoelectric detector 4, the blended data solution that comprises USB3.0/3.1 and USB2.0 receiving is mixed, USB3.0/3.1 data and USB2.0 data are passed through, for example, by USB3.0/3.1RX and USB2.0RX circuit, send to respectively described USB3.0/3.1 electricity transceiver 21 and described USB2.0 half-duplex-full duplex converter 24.
Further preferably, described USB2.0 half-duplex-full duplex converter 24 has following function: resolve USB2.0 bus, obtain and safeguard the state of USB2.0 bus; Resolve USB2.0 bus, receive the data that USB2.0 main frame or equipment send over; Bus state is encoded, and send to USB2.0TX after the data mixing receiving; Receive the data of USB2.0RX, resolve bus state information and do corresponding state adjustment; Receive the data of USB2.0RX, and data are sent to USB2.0 bus according to the standard of USB2.0.
Mix transmitter 27 by after the USB3.0/3.1 data that receive and USB2.0 data are mixed according to set form, with higher data transfer rate, (in Fig. 4, adopt 6Gbps/11Gbps, but be not limited to 6Gbps and 11Gbps) send on optical fiber 5, by Optical Fiber Transmission, arrive the mixing transceiver of far-end.
Further, referring to Fig. 5, in a preferred embodiment, the framework schematic diagram of described mixing transmitter 27 is disclosed, described mixing transmitter 27 comprises: USB3.0 data sink and buffer memory 271, be used for, for example, by USB3.0TX, receive data that USB3.0/3.1 electricity transceiver 21 sends over and be buffered in high-speed cache in the mode of first-in first-out; USB2.0 data sink and buffer memory 272, for, for example, by USB2.0TX, the data that reception USB2.0 electricity transceiver 22 sends over are buffered in high-speed cache in the mode of first-in first-out; Mixture control 273, for the first fixed intervals from the data buffer storage of USB3.0 data sink and buffer memory 271 and the data buffer storage of USB2.0 data sink and buffer memory 272 in order by data reading and form new packet and exist and send buffer memory 274; Send buffer memory 274, for receiving described new data packets and offering, mix transmitter 275; Mix transmitter 275, for reading, send the described new data packets of buffer memory 274 and send.
In further preferred embodiment, the following form of data being read out forms new packet:
| Data frame head | USB3.0 data | Segmentation marker | USB2.0 data | Data postamble |
Further preferably, transmission timer 276 provides described the first fixed intervals to described mixture control 273.
Mix receiver 28 by by the USB3.0/3.1 receiving and USB2.0 blended data mixed according to set form solution after, respectively the data of USB3.0/USB3.1 and USB2.0 are sent on the USB3.0/3.1 and USB2.0 interface of local terminal.
Further, referring to Fig. 6, in a preferred embodiment, disclose the framework schematic diagram of described mixing receiver 28, described mixing receiver 28 comprises: mix receiver 281, for receiving blended data and existing in order, receive buffer memory 282; Receive buffer memory 282, for storing received blended data, and offer the mixed controller 283 of solution; Separate mixed controller 283, for extracting blended data and solution blendes together USB3.0/3.1 data and USB2.0 data send to respectively USB3.0 data transmitter and buffer memory 284 and USB2.0 data sink and buffer memory 285 by the second fixed intervals from described reception buffer memory 282; Described USB3.0 data transmitter and buffer memory 284, the USB3.0/3.1 data that receive for buffer memory, and by the mode of first-in first-out, USB3.0/3.1 data are sent to USB3.0/3.1 electricity transceiver 21; Described USB2.0 data sink and buffer memory 285, the USB2.0 data that receive for buffer memory, and by the mode of first-in first-out, USB2.0 data are sent to USB2.0 electricity transceiver 22.
Further preferably, separate mixed controller Main Basis frame head, segmentation marker and postamble and produce described the second fixed intervals.Receive timer 2 86 and provide auxiliary timing signal to the mixed controller 283 of described solution, with when the mixed controller of solution can not correctly be confirmed frame head and postamble, utilize auxiliary timing information to assist and produce frame head and postamble, to assist, produce described the second fixed intervals.
Preferably, described transmission timer 276 and described reception timer 2 86 can be same timer.
Further preferably, described mixed electrical optical transceiver 2 also there is laser driver 25, for receiving the data that will send, and drive described generating laser; Signal sensor 26, changes into into digital signal and sends to described usb data mixer for the ultra-weak electronic signal that photoelectric detector is converted.
The invention also discloses a kind of for transmit the fiberoptic cable system of USB3.0 and USB2.0 data simultaneously, comprise two optical fiber 5, standard USB3.0/3.1 interface, generating laser and photoelectric detector, it is characterized in that, standard USB3.0/3.1 interface 1 connects the mixed electrical optical transceiver 2 described in the above embodiment of the present invention, and described mixed electrical optical transmitter is connected with optical fiber 5 with photoelectric detector 4 through generating laser 3 respectively.That is the mixing that, utilizes described mixed electrical optical transceiver 2 in the present invention to carry out the data of USB2.0 and USB3.0/3.1 is conciliate mixed.
Therefore, the present invention has unified the data-transmission mode of USB2.0, make it also become full-duplex mode, and conciliate mixed by the mixing that usb data mixer 23 has completed USB3.0 data and USB2.0, USB3.0 and USB2.0 can be transmitted in identical packet, saved number of fibers, easy operation, make the use of USB3.0 standard interface more easy, make USB3.0 standard interface real compatible in the use USB2.0 form.
Above content is in conjunction with concrete preferred implementation further description made for the present invention; can not assert that the specific embodiment of the present invention only limits to this; for general technical staff of the technical field of the invention; without departing from the inventive concept of the premise; can also make some simple deduction or replace, all should be considered as belonging to the present invention and determine protection domain by submitted to claims.
Claims (10)
1. for a mixed electrical optical transceiver for USB 3.0 interfaces, it is characterized in that:
One end of described mixed electrical optical transceiver is connected with standard USB 3.0/3.1 interface, for upload and download USB 3.0/3.1 data-signal and USB 2.0 signals, the other end connects respectively generating laser and photoelectric detector, and described generating laser is connected respectively with described photoelectric detector the transmission that optical fiber carries out data;
Described mixed electrical optical transceiver comprises: USB 3.0/3.1 electricity transceiver, and the electric transceiver of USB 2.0 and usb data mixer,
Wherein, described USB 3.0/3.1 electricity transceiver connects described standard USB 3.0/3.1 interface, for receiving USB 3.0 differential electric signal on the one hand, process and adjudicate, and convert single-ended electrical signal to and export described usb data mixer to, receive on the other hand the single-ended electrical signal of described USB data mixing device output, and convert USB 3.0 differential signals to and export to standard USB 3.0/3.1 data-interface;
The electric transceiver of described USB 2.0 connects described standard USB 3.0/3.1 interface, for a fermentation reception, meeting USB 2.0 differential electric signal processes and adjudicates, and convert single-ended electrical signal to and export usb data mixer to, receive on the other hand the single-ended electrical signal of described USB data mixing device output, and convert to and meet USB 2.0 differential signals and export to standard USB 3.0/3.1 data-interface;
Described usb data mixer, for receiving respectively on the one hand the signal from described USB 3.0/3.1 electricity transceiver and described USB 2.0 electric transceivers, two kinds of signals are mixed, the blended data that formation comprises USB 3.0/3.1 and USB 2.0 also sends to generating laser, receive on the other hand the signal from photoelectric detector, the blended data solution receiving is mixed, and respectively USB 3.0/3.1 data and USB 2.0 data are sent to described USB 3.0/3.1 electricity transceiver and the electric transceiver of described USB 2.0.
2. the mixed electrical optical transceiver for USB 3.0 interfaces according to claim 1, is characterized in that:
Described mixed electrical optical transceiver also comprises USB 2.0 half-duplexs-full duplex converter, connects the electric transceiver of described USB 2.0 and described usb data mixer, for the half-duplex signal of USB 2.0 is converted to full duplex signaling.
3. the mixed electrical optical transceiver for USB 3.0 interfaces according to claim 2, is characterized in that:
Described usb data mixer comprises:
Mix transmitter, for receiving respectively the signal from described USB 3.0/3.1 electricity transceiver and described USB 2.0 half-duplexs-full duplex converter, two kinds of signals are mixed, form the blended data that comprises USB 3.0/3.1 and USB 2.0 and send to generating laser;
Mix receiver, for receiving the signal from photoelectric detector, the blended data solution that comprises USB 3.0/3.1 and USB 2.0 receiving is mixed, USB 3.0/3.1 data and USB 2.0 data are sent to respectively to described USB 3.0/3.1 electricity transceiver and described USB 2.0 half-duplexs-full duplex converter.
4. the mixed electrical optical transceiver for USB 3.0 interfaces according to claim 3, is characterized in that:
Described mixing transmitter comprises:
USB 3.0 data sinks and buffer memory, for receiving data that described USB 3.0/3.1 electricity transceiver sends over and being buffered in high-speed cache in the mode of first-in first-out;
USB 2.0 data sinks and buffer memory, be buffered in high-speed cache for receiving data that described USB2.0 electricity transceiver sends in the mode of first-in first-out;
Mixture control, for the first fixed intervals from the data buffer storage of USB 3.0 data sinks and buffer memory and the data buffer storage of USB 2.0 data sinks and buffer memory in order by data reading and form new packet and exist and send buffer memory;
Send buffer memory, for receiving described new data packets and offering mixing transmitter;
Mix transmitter, for reading, send the described new data packets of buffer memory and send.
5. the mixed electrical optical transceiver for USB 3.0 interfaces according to claim 4, is characterized in that:
Described mixture control forms new packet by the following form of the data of reading:
。
6. according to the mixed electrical optical transceiver for USB 3.0 interfaces described in claim 4 or 5, it is characterized in that:
Described mixing receiver comprises:
Mix receiver, for receiving blended data and existing in order, receive buffer memory;
Receive buffer memory, for storing received blended data, and offer the mixed controller of solution;
Separate mixed controller, for extracting blended data and solution blendes together USB 3.0/3.1 data and USB 2.0 data send to respectively USB 3.0 data transmitters and buffer memory and USB 2.0 data sinks and buffer memory by the second fixed intervals from described reception buffer memory;
USB 3.0 data transmitters and buffer memory, the USB 3.0/3.1 data that receive for buffer memory, and by the mode of first-in first-out, USB 3.0/3.1 data are sent to USB 3.0/3.1 electricity transceiver;
USB 2.0 data sinks and buffer memory, USB 2.0 data that receive for buffer memory, and by the mode of first-in first-out, USB 2.0 data are sent to the electric transceiver of USB 2.0.
7. the mixed electrical optical transceiver for USB 3.0 interfaces according to claim 6, is characterized in that:
Transmission timer provides described the first fixed intervals to described mixture control, separate mixed controller Main Basis frame head, segmentation marker and postamble and produce described the second fixed intervals, receive timer and provide auxiliary timing signal to the mixed controller of described solution, with when the mixed controller of solution can not correctly be confirmed frame head and postamble, utilize auxiliary timing information to assist and produce frame head and postamble, to assist, produce described the second fixed intervals.
8. the mixed electrical optical transceiver for USB 3.0 interfaces according to claim 7, is characterized in that:
Described transmission timer and described reception timer are same timer.
9. the mixed electrical optical transceiver for USB 3.0 interfaces according to claim 6, is characterized in that:
Also having of described mixed electrical optical transceiver:
Laser driver, for receiving the data that will send, and drives described generating laser;
Signal sensor, changes into into digital signal and sends to described usb data mixer for the ultra-weak electronic signal that described photoelectric detector is converted.
10. for transmit a fiberoptic cable system for USB 3.0 and USB 2.0 data simultaneously, comprise two optical fiber, the mixed electrical optical transceiver in claim 1-9 described in any one, standard USB 3.0/3.1 interface, generating laser and photoelectric detector,
It is characterized in that, described standard USB 3.0/3.1 interface connects the mixed electrical optical transceiver described in any one in claim 1-9, and described mixed electrical optical transmitter is connected with described optical fiber with described photoelectric detector through described generating laser respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410311742.6A CN104101965B (en) | 2014-07-02 | 2014-07-02 | For mixed electrical optical transceiver and the optical cable thereof of USB3.0/3.1 interface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410311742.6A CN104101965B (en) | 2014-07-02 | 2014-07-02 | For mixed electrical optical transceiver and the optical cable thereof of USB3.0/3.1 interface |
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| CN105472294A (en) * | 2015-11-11 | 2016-04-06 | 天津瑞发科半导体技术有限公司 | Mixed transmission system and method of video data and USB data |
| CN105657452A (en) * | 2016-01-22 | 2016-06-08 | 天津瑞发科半导体技术有限公司 | Hybrid transmission system and method for USB data and video data |
| CN108599848A (en) * | 2018-03-21 | 2018-09-28 | 江苏沁恒股份有限公司 | A kind of fiber transmission device and method for USB interface |
| CN108989708A (en) * | 2018-07-25 | 2018-12-11 | 长芯盛（武汉）科技有限公司 | The low speed signal photoelectric conversion module of all-purpose belt multimedia interface |
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| US20100254662A1 (en) * | 2009-04-02 | 2010-10-07 | Hon Hai Precision Industry Co., Ltd. | Connector with improved contacts |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105472294A (en) * | 2015-11-11 | 2016-04-06 | 天津瑞发科半导体技术有限公司 | Mixed transmission system and method of video data and USB data |
| CN105472294B (en) * | 2015-11-11 | 2017-06-23 | 天津瑞发科半导体技术有限公司 | The hybrid transmission system and method for a kind of video data and usb data |
| CN105657452A (en) * | 2016-01-22 | 2016-06-08 | 天津瑞发科半导体技术有限公司 | Hybrid transmission system and method for USB data and video data |
| CN105657452B (en) * | 2016-01-22 | 2017-05-10 | 天津瑞发科半导体技术有限公司 | Hybrid transmission system and method for USB data and video data |
| CN108599848A (en) * | 2018-03-21 | 2018-09-28 | 江苏沁恒股份有限公司 | A kind of fiber transmission device and method for USB interface |
| CN108599848B (en) * | 2018-03-21 | 2021-01-15 | 江苏沁恒股份有限公司 | Optical fiber transmission device and method for USB interface |
| CN108989708A (en) * | 2018-07-25 | 2018-12-11 | 长芯盛（武汉）科技有限公司 | The low speed signal photoelectric conversion module of all-purpose belt multimedia interface |
| CN108989708B (en) * | 2018-07-25 | 2021-01-08 | 长芯盛（武汉）科技有限公司 | Low-speed control signal photoelectric conversion module of universal multimedia interface |
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| CN104101965B (en) | 2015-11-25 |
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