CN104101965B - For mixed electrical optical transceiver and the optical cable thereof of USB3.0/3.1 interface - Google Patents
For mixed electrical optical transceiver and the optical cable thereof of USB3.0/3.1 interface Download PDFInfo
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Abstract
A kind of mixed electrical optical transceiver for USB3.0 interface and optical cable thereof, described mixed electrical optical transceiver comprises: USB3.0/3.1 electricity transceiver, USB2.0 electricity transceiver and usb data mixer, USB3.0/3.1 electricity transceiver completes the forwarding of USB3.0 signal, USB2.0 electricity transceiver completes the forwarding of USB2.0 signal, two kinds of usb signals mix by usb data mixer on the one hand, on the other hand the USB blended data solution received is mixed, and respectively two kinds of usb datas are sent to two kinds of electric transceivers.Does the present invention make USB? 3.0 can transmit with USB2.0 in identical packet, have saved number of fibers, and easy operation, makes the use of USB3.0 standard interface more easy, make USB3.0 standard interface real compatible USB2.0 form 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 for USB3.0/3.1 interface and optical cable thereof.
Background technology
USB3.0 is also referred to as SuperSpeedUSB, and it is that the various equipment be connected with PC or audio frequency/high-frequency apparatus provide a standard interface.As the USB interface of a new generation, the feature of USB3.0/3.1 be transfer rate quickly, can 5Gbps/10Gbps be reached in theory, than fast 10 times of the HighSpeedUSB (referred to as USB2.0) of present 480Mbps.Profile and the present USB interface of USB3.0/3.1 are basically identical, can compatible USB2.0 and USB1.1 equipment.
Compare current USB2.0 interface, USB3.0/3.1 adds the physical bus of more multiple parallel pattern.On the basis of original 4 line structures (power supply, ground wire, 1 pair of data), USB3.0/3.1 adds 4 (two to) circuits again, for receiving and transmission SuperSpeed signal.Therefore no matter be that in cable or on interface, always have 3 pairs of differential lines, transmit USB2.0 signal in semiduplex mode a pair, other two transmit SuperSpeed signal in the mode of full duplex.
The signal transmitting USB3.0 interface with optical fiber can run into two problems:
1. existing USB3.0 the is compatible signal of USB2.0, and USB3.0 and USB2.0 characteristics of signals is different, therefore, carries out Signal transmissions at use USB3.0 interface, needs each use a pair optical fiber to 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 the use of user.
The data of 2.USB2.0 are semiduplex mode, directly cannot pass through Optical Fiber Transmission, when directly transmitting USB2.0 data, need to convert full duplex signaling to, and USB3.0 data being full-duplex mode, can directly transmitting.
Therefore, how directly photoelectricity transmission can be carried out to the data of USB3.0/3.1 interface, reduce unnecessary optical fiber and photoelectric device, improve the convenience used, the compatible USB2.0 data that wherein may comprise become the technical matters that prior art needs solution badly simultaneously.
Summary of the invention
The object of the invention is to the optical cable proposing a kind of novel USB3.0/3.1 mixed electrical optical transceiver and use it, can only adopt two optical fiber to realize directly transmitting the data of USB3.0/3.1 interface.
For reaching this object, the present invention by the following technical solutions:
For a mixed electrical optical transceiver for USB3.0/3.1 interface, it 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 generating laser and photoelectric detector respectively, and described generating laser and described photoelectric detector respectively connecting fiber carry out the transmission of data;
Described mixed electrical optical transceiver comprises: USB3.0/3.1 electricity transceiver, USB2.0 electricity transceiver and usb data mixer,
Wherein, described USB3.0/3.1 electricity transceiver connects described standard USB3.0/3.1 interface, carry out processing and adjudicating for receiving USB3.0/3.1 differential electric signal on the one hand, and convert single-ended electrical signal to and export described usb data mixer to, receive on the other hand the single-ended electrical signal that described usb data mixer exports, and convert USB3.0/3.1 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, meet USB2.0 differential electric signal for one side reception to carry out processing and adjudicating, and convert single-ended electrical signal to and export usb data mixer to, receive on the other hand the single-ended electrical signal that described usb data mixer exports, 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 the signal from described USB3.0/3.1 electricity transceiver and described USB2.0 electricity transceiver on the one hand respectively, two kinds of signals are mixed, formation comprises the blended data of USB3.0/3.1 and USB2.0 and sends to generating laser, receive the signal from photoelectric detector on the other hand, the blended data solution received is mixed, and respectively USB3.0/3.1 data and USB2.0 data is 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:
Mixing transmitter, for receiving the signal from described USB3.0/3.1 electricity transceiver and described USB2.0 half-duplex-full duplex converter respectively, mixed by two kinds of signals, formation comprises the blended data of USB3.0/3.1 and USB2.0 and sends to generating laser;
Mixing receiver, for receiving the signal from photoelectric detector, the blended data solution comprising USB3.0/3.1 and USB2.0 received is mixed, USB3.0/3.1 data and USB2.0 data is sent to respectively described USB3.0/3.1 electricity transceiver and described USB2.0 half-duplex-full duplex converter.
Preferably, described mixing transmitter comprises:
USB3.0/3.1 data sink and buffer memory, for receiving the described USB3.0/3.1 electricity data that send over of transceiver and with the mode buffer memory of first-in first-out in the caches;
USB2.0 data sink and buffer memory, for receiving the data that send over of described USB2.0 electricity transceiver with the mode buffer memory of first-in first-out in the caches;
Mixture control, for the first fixed intervals forming new packet and exist by data reading and send in buffer memory in order from USB3.0/3.1 data sink and the data buffer storage of buffer memory and the data buffer storage of USB2.0 data sink and buffer memory;
Send buffer memory, for receiving described new data packets and being supplied to mixing transmitter;
Mixing transmitter, for reading the described new data packets that sends in buffer memory and sending.
Preferably, following for the data of reading form is formed new packet by described mixture control:
| Data frame head | USB 3.0/3.1 data | Segmentation marker | USB 2.0 data | Data postamble |
Preferably, described mixing receiver comprises:
Mixing receiving element, receives in buffer memory for receiving blended data and existing in order;
Receiving buffer memory, for storing received blended data, and being supplied to the mixed controller of solution;
Separate mixed controller, for extracting blended data by the second fixed intervals from described reception buffer memory and solution blendes together USB3.0/3.1 data and USB2.0 data sends to USB3.0/3.1 data transmitter and buffer memory and USB2.0 data sink and buffer memory respectively;
USB3.0/3.1 data for the USB3.0/3.1 data that buffer memory receives, and are sent to USB3.0/3.1 electricity transceiver by the mode of first-in first-out by USB3.0/3.1 data transmitter and buffer memory;
USB2.0 data for the USB2.0 data that buffer memory receives, and are sent to USB2.0 electricity transceiver by the mode of first-in first-out by USB2.0 data sink and buffer memory.
Preferably, transmission timer provides described first fixed intervals to described mixture control, separate mixed controller Main Basis frame head, segmentation marker and postamble and produce described second fixed intervals, reception timer mixes controller to described solution provides auxiliary timing signal, with when separating mixed controller and correctly can not confirming frame head and postamble, utilize secondary timing information to assist and produce frame head and postamble, with described second fixed intervals of auxiliary generation.
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, the ultra-weak electronic signal for being converted by described photoelectric detector changes into digital signal and sends to described usb data mixer.
Simultaneously, the invention also discloses a kind of fiberoptic cable system for transmitting USB3.0/3.1 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, it is characterized in that, described standard USB3.0/3.1 interface connects the mixed electrical optical transceiver in claim 1-9 described in any one, and described mixed electrical optical transmitter is respectively through described generating laser and described photoelectric detector and Fiber connection.
The present invention has unified the data-transmission mode of USB2.0, it is made also to become full-duplex mode, and conciliate mixed by the mixing that usb data mixer 23 completes USB3.0/3.1 data and USB2.0, USB3.0/3.1 with USB2.0 can be transmitted in identical packet, save number of fibers, easy operation, makes the use of USB3.0/3.1 standard interface more easy, makes USB3.0/3.1 standard interface real compatible USB2.0 form in use.
Accompanying drawing explanation
Fig. 1 is the Optical Fiber Transmission schematic diagram with the USB3.0/3.1 data-interface of mixed electrical optical transceiver according to a particular embodiment of the invention;
Fig. 2 is the schematic diagram with the bidirectional optical fiber transmission of mixed electrical optical transceiver according to a particular embodiment of the invention;
Fig. 3 is the block schematic illustration of mixed electrical optical transceiver according to a particular embodiment of the invention;
Fig. 4 is the block schematic illustration of usb data mixer according to a particular embodiment of the invention;
Fig. 5 is the block schematic illustration of the mixing transmitter in mixer of the present invention;
Fig. 6 is the block schematic illustration of the mixing receiver in mixer of the present invention.
The technical characteristic that Reference numeral in figure refers to respectively is:
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, transmitter is mixed; 28, receiver is mixed; 271, USB3.0/3.1 data sink and buffer memory; 272, USB2.0 data sink and buffer memory; 273, mixture control; 274, buffer memory is sent; 275, transmitter is mixed; 276, transmission timer; 281, receiving element is mixed; 282, buffer memory is received; 283, mixed controller is separated; 284, USB3.0/3.1 data transmitter and buffer memory; 285, USB2.0 data transmitter and buffer memory; 286, timer is received.
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, illustrate only part related to the present invention in accompanying drawing but not entire infrastructure.
In order to backward compatible USB2.0, USB3.0/3.1 have employed 9 stitch designs.Wherein 4 stitch are all identical with the shape definition of USB2.0, and other 5 is specially for USB3.0 prepares.USB3.0/3.1 introduces full-duplex data transmission, in 5 circuits, 2 are used for sending data, 2 are used for receiving data, also having 1 is ground wire, that is USB3.0/3.1 synchronously can carry out read-write operation at full tilt, and USB version in the past, namely USB2.0 and USB1.1 does not support that full-duplex data transmits.
According to the definition of standard, see table 1,9 pinouts of USB3.0/3.1 are as follows.
Table 1USB3.0/3.1 pinout
In existing standard, StdA_SSRX+/-and StdA_SSTX+/-for the high-speed data of USB3.0/3.1 receives (SuperSpeed) and sends differential pair, D-and D+ is USB2.0 signal differential pair.Wherein, SSRX+/-and SSTX+/-be full duplex signaling, transmission and reception adopt independently physical media, D-and D+ is half-duplex signal, send and receive to adopt unified physical media, namely separately transmit.
USB3.1 is the extension agreement of USB3.0, and be also a kind of high speed USB data transmission mode, therefore in this article, the Apparatus and method for for USB3.0 is all applicable to USB3.1.
In standard agreement, USB3.0/3.1SuperSpeed and USB2.0 adopts independently media transmission.Therefore, in order to save the quantity of optical fiber and laser transmitting-receiving device, the present invention sends after USB3.0/3.1SuperSpeed signal and the mixing of USB2.0 signal, so just can only with the transmission of a pair optical fiber realization based on the blended data of unified USB3.0/3.1 data-interface.
See Fig. 1, disclose the Optical Fiber Transmission schematic diagram with the USB3.0/3.1 data-interface of mixed electrical optical transceiver according to a particular embodiment of the invention.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 generating laser 3 and photoelectric detector 4 respectively, and described generating laser 3 and described photoelectric detector 4 respectively connecting fiber 5 carry out the transmission of data.
Wherein said generating laser 3, according to digital signal transmission laser, can be the laser transmitting set that LD, LED etc. are conventional.
Described photoelectric detector 4, is converted to electric signal for sensed light signal, it will be appreciated by those skilled in the art that described photodiode can be any conventional optoelectronic detecting device 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.Namely, see Fig. 2, disclose the schematic diagram with the bidirectional optical fiber transmission of mixed electrical optical transceiver according to a particular embodiment of the invention, the two ends of a pair optical cable 5 have two mixed electrical optical transceivers 2 respectively, realize transmission and the reception of USB3.0/3.1 and USB2.0 data.
See Fig. 3, disclose the block schematic illustration of mixed electrical optical transceiver 2 according to a particular embodiment of the invention, 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 the one end towards described standard USB3.0/3.1 interface 1, for receiving the USB3.0 differential electric signal meeting USB3.0 electrical code on the one hand, namely SSTX is received, carry out processing and adjudicating, and convert single-ended electrical signal to and export usb data mixer 23 to, be responsible on the other hand receiving the single-ended electrical signal being mixed with usb data mixer 23 and exporting, and convert the differential signal meeting USB3.0 electrical code to and export to standard USB3.0/3.1 data-interface 1.That is, see Fig. 3, described USB3.0/3.1 electricity transceiver 21 be connected to SSRX+/-and SSTX+/-.
Described USB2.0 electricity transceiver 22 is positioned at the one end towards described standard USB3.0/3.1 interface 1, be responsible for resolving and driving USB2.0 electric interfaces, the differential electric signal meeting USB2.0 electrical code is received for a fermentation, carry out processing and adjudicating, and convert single-ended electrical signal to and export usb data mixer 23 to, receive on the other hand the single-ended electrical signal that described usb data mixer exports, and convert the differential signal meeting USB2.0 electrical code to and export to standard USB3.0/3.1 data-interface 1.That is, see Fig. 3, described USB2.0 electricity transceiver 22 be connected to D+/-.
Described usb data mixer 23 is positioned at the one end towards described generating laser 3 and described photoelectric detector 4, for receiving the signal from described USB3.0/3.1 electricity transceiver 21 and described USB2.0 electricity transceiver 22 on the one hand respectively, two kinds of signals are mixed, formation comprises the blended data of USB3.0/3.1 and USB2.0 and sends to generating laser 3, receive the signal from photoelectric detector 4 on the other hand, the blended data solution comprising USB3.0/3.1 and USB2.0 received 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 two different electric transceivers to realize transmission and the reception of USB3.0/3.1 and USB2.0 data respectively, utilize usb data mixer 23 to mix above-mentioned two kinds of different data, therefore, the transmission making employing a pair optical fiber realize the signal of two kinds of different-formats becomes 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 the signal transfer mode of the signal transfer mode of USB2.0 and USB3.0 unified like this, the signal and the USB3.0 signal that are conducive to USB2.0 are further transmitting with on a pair optical fiber.
Further, see Fig. 4, in a preferred embodiment, disclose the block schematic illustration of described usb data mixer 23, described usb data mixer 23 comprises: mixing transmitter 27, for, such as by USB3.0/3.1TX and USB2.0TX circuit, receive the TX signal from described USB3.0/3.1 electricity transceiver 21 and described USB2.0 half-duplex-full duplex converter 24 respectively, mixed by two kinds of signals, formation comprises the blended data of USB3.0/3.1 and USB2.0 and sends to generating laser 3; Mixing receiver 28, for receiving the signal from photoelectric detector 4, the blended data solution comprising USB3.0/3.1 and USB2.0 received is mixed, USB3.0/3.1 data and USB2.0 data are passed through, such as by USB3.0/3.1RX and USB2.0RX circuit, be sent to described USB3.0/3.1 electricity transceiver 21 and described USB2.0 half-duplex-full duplex converter 24 respectively.
Further preferably, described USB2.0 half-duplex-full duplex converter 24 has following function: resolve USB2.0 bus, obtains and safeguards the state of USB2.0 bus; Resolve USB2.0 bus, the data that reception USB2.0 main frame or equipment send over; Bus state is encoded, is sent to USB2.0TX with after the data mixing received; Receive the data of USB2.0RX, resolve bus state information and do the adjustment of corresponding state; Receive the data of USB2.0RX, and data are sent to USB2.0 bus according to the specification of USB2.0.
Mixing transmitter 27 by the USB3.0/3.1 data that will receive and USB2.0 data according to after the mixing of set form, (6Gbps/11Gbps is adopted in the diagram with higher data transfer rate, but be not limited to 6Gbps and 11Gbps) be sent on optical fiber 5, by the mixing transceiver of Optical Fiber Transmission to far-end.
Further, see Fig. 5, in a preferred embodiment, disclose the block schematic illustration of described mixing transmitter 27, described mixing transmitter 27 comprises: USB3.0/3.1 data sink and buffer memory 271, for, such as, by USB3.0TX, receive data that USB3.0/3.1 electricity transceiver 21 sends over and with the mode buffer memory of first-in first-out in the caches; USB2.0 data sink and buffer memory 272, for, such as, by USB2.0TX, the data that reception USB2.0 electricity transceiver 22 sends over are with the mode buffer memory of first-in first-out in the caches; Mixture control 273, for the first fixed intervals forming new packet and exist by data reading and send in buffer memory 274 in order from USB3.0/3.1 data sink and the data buffer storage of buffer memory 271 and the data buffer storage of USB2.0 data sink and buffer memory 272; Send buffer memory 274, for receiving described new data packets and being supplied to mixing transmitter 275; Mixing transmitter 275, for reading the described new data packets that sends in buffer memory 274 and sending.
In a further preferred embodiment, the following form of the data be read out forms new packet:
| Data frame head | USB 3.0/3.1 data | Segmentation marker | USB 2.0 data | Data postamble |
Further preferably, transmission timer 276 provides described first fixed intervals to described mixture control 273.
The data of USB3.0/USB3.1 and USB2.0 are sent on USB3.0/3.1 and the USB2.0 interface of local terminal after being mixed according to set form solution by USB3.0/3.1 and the USB2.0 blended data that will receive by mixing receiver 28 respectively.
Further, see Fig. 6, in a preferred embodiment, disclose the block schematic illustration of described mixing receiver 28, described mixing receiver 28 comprises: mixing receiving element 281, receives in buffer memory 282 for receiving blended data and existing in order; Receiving buffer memory 282, for storing received blended data, and being supplied to the mixed controller 283 of solution; Separate mixed controller 283, for extracting blended data by the second fixed intervals from described reception buffer memory 282 and solution blendes together USB3.0/3.1 data and USB2.0 data sends to USB3.0/3.1 data transmitter and buffer memory 284 and USB2.0 data sink and buffer memory 285 respectively; USB3.0/3.1 data for the USB3.0/3.1 data that buffer memory receives, and are sent to USB3.0/3.1 electricity transceiver 21 by the mode of first-in first-out by described USB3.0/3.1 data transmitter and buffer memory 284; USB2.0 data for the USB2.0 data that buffer memory receives, and are sent to USB2.0 electricity transceiver 22 by the mode of first-in first-out by described USB2.0 data sink and buffer memory 285.
Further preferably, separate mixed controller Main Basis frame head, segmentation marker and postamble and produce described second fixed intervals.Reception timer 2 86 mixes controller 283 to described solution provides auxiliary timing signal, with when separating mixed controller and correctly can not confirming frame head and postamble, utilizes secondary timing information to assist and produces frame head and postamble, with described second fixed intervals of auxiliary generation.
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, the ultra-weak electronic signal for being converted by photoelectric detector changes into into digital signal and sends to described usb data mixer.
The invention also discloses a kind of fiberoptic cable system for transmitting USB3.0/3.1 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 respectively through generating laser 3.That is, the mixing utilizing the 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, it is made also to become full-duplex mode, and conciliate mixed by the mixing that usb data mixer 23 completes USB3.0/3.1 data and USB2.0, USB3.0/3.1 with USB2.0 can be transmitted in identical packet, saved number of fibers, easy operation, make the use of USB3.0/3.1 standard interface more easy, make USB3.0/3.1 standard interface real compatible USB2.0 form in use.
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 is only limitted to this; for general technical staff of the technical field of the invention; without departing from the inventive concept of the premise; some simple deduction or replace can also be made, all should be considered as belonging to the present invention by submitted to claims determination protection domain.
Claims (10)
1., for a mixed electrical optical transceiver for USB3.0/3.1 interface, it 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 generating laser and photoelectric detector respectively, and described generating laser and described photoelectric detector respectively connecting fiber carry out the transmission of data;
Described mixed electrical optical transceiver comprises: USB3.0/3.1 electricity transceiver, USB2.0 electricity transceiver and usb data mixer,
Wherein, described USB3.0/3.1 electricity transceiver connects described standard USB3.0/3.1 interface, carry out processing and adjudicating for receiving USB3.0/3.1 differential electric signal on the one hand, and convert single-ended electrical signal to and export described usb data mixer to, receive on the other hand the single-ended electrical signal that described usb data mixer exports, and convert USB3.0/3.1 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, meet USB2.0 differential electric signal for one side reception to carry out processing and adjudicating, and convert single-ended electrical signal to and export usb data mixer to, receive on the other hand the single-ended electrical signal that described usb data mixer exports, 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 the signal from described USB3.0/3.1 electricity transceiver and described USB2.0 electricity transceiver on the one hand respectively, two kinds of signals are mixed, formation comprises the blended data of USB3.0/3.1 and USB2.0 and sends to generating laser, receive the signal from photoelectric detector on the other hand, the blended data solution received is mixed, and respectively USB3.0/3.1 data and USB2.0 data is sent to described USB3.0/3.1 electricity transceiver and described USB2.0 electricity transceiver.
2. the mixed electrical optical transceiver for USB3.0/3.1 interface according to claim 1, is characterized in that:
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.
3. the mixed electrical optical transceiver for USB3.0/3.1 interface according to claim 2, is characterized in that:
Described usb data mixer comprises:
Mixing transmitter, for receiving the signal from described USB3.0/3.1 electricity transceiver and described USB2.0 half-duplex-full duplex converter respectively, mixed by two kinds of signals, formation comprises the blended data of USB3.0/3.1 and USB2.0 and sends to generating laser;
Mixing receiver, for receiving the signal from photoelectric detector, the blended data solution comprising USB3.0/3.1 and USB2.0 received is mixed, USB3.0/3.1 data and USB2.0 data is sent to respectively described USB3.0/3.1 electricity transceiver and described USB2.0 half-duplex-full duplex converter.
4. the mixed electrical optical transceiver for USB3.0/3.1 interface according to claim 3, is characterized in that:
Described mixing transmitter comprises:
USB3.0/3.1 data sink and buffer memory, for receiving the described USB3.0/3.1 electricity data that send over of transceiver and with the mode buffer memory of first-in first-out in the caches;
USB2.0 data sink and buffer memory, for receiving the data that send over of described USB2.0 electricity transceiver with the mode buffer memory of first-in first-out in the caches;
Mixture control, for the first fixed intervals forming new packet and exist by data reading and send in buffer memory in order from USB3.0/3.1 data sink and the data buffer storage of buffer memory and the data buffer storage of USB2.0 data sink and buffer memory;
Send buffer memory, for receiving described new data packets and being supplied to mixing transmitter;
Mixing transmitter, for reading the described new data packets that sends in buffer memory and sending.
5. the mixed electrical optical transceiver for USB3.0/3.1 interface according to claim 4, is characterized in that:
Following for the data of reading form is formed new packet by described mixture control:
。
6. the mixed electrical optical transceiver for USB3.0/3.1 interface according to claim 4 or 5, is characterized in that:
Described mixing receiver comprises:
Mixing receiving element, receives in buffer memory for receiving blended data and existing in order;
Receiving buffer memory, for storing received blended data, and being supplied to the mixed controller of solution;
Separate mixed controller, for extracting blended data by the second fixed intervals from described reception buffer memory and solution blendes together USB3.0/3.1 data and USB2.0 data sends to USB3.0/3.1 data transmitter and buffer memory and USB2.0 data sink and buffer memory respectively;
USB3.0/3.1 data for the USB3.0/3.1 data that buffer memory receives, and are sent to USB3.0/3.1 electricity transceiver by the mode of first-in first-out by USB3.0/3.1 data transmitter and buffer memory;
USB2.0 data for the USB2.0 data that buffer memory receives, and are sent to USB2.0 electricity transceiver by the mode of first-in first-out by USB2.0 data sink and buffer memory.
7. the mixed electrical optical transceiver for USB3.0/3.1 interface according to claim 6, is characterized in that:
Transmission timer provides described first fixed intervals to described mixture control, separate mixed controller Main Basis frame head, segmentation marker and postamble and produce described second fixed intervals, reception timer mixes controller to described solution provides auxiliary timing signal, with when separating mixed controller and correctly can not confirming frame head and postamble, utilize secondary timing information to assist and produce frame head and postamble, with described second fixed intervals of auxiliary generation.
8. the mixed electrical optical transceiver for USB3.0/3.1 interface 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 USB3.0/3.1 interface 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, the ultra-weak electronic signal for being converted by described photoelectric detector changes into digital signal and sends to described usb data mixer.
10. for transmitting a fiberoptic cable system for USB3.0/3.1 and USB2.0 data simultaneously, comprise two optical fiber, the mixed electrical optical transceiver in claim 1-9 described in any one, standard USB3.0/3.1 interface, generating laser and photoelectric detector,
It is characterized in that, described standard USB3.0/3.1 interface connects the mixed electrical optical transceiver in claim 1-9 described in any one, and described mixed electrical optical transmitter is respectively through described generating laser and described photoelectric detector and described Fiber connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| 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 |
| 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 |
| 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 |
| 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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| Publication number | Priority date | Publication date | Assignee | Title |
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| TW201237483A (en) * | 2011-03-11 | 2012-09-16 | Ct A Photonics Corp | Optoelectronic hybrid interconnect |
| CN103713363A (en) * | 2014-01-03 | 2014-04-09 | 长芯盛（武汉）科技有限公司 | Connecting assembly of USB 3.0 type optical fiber connector |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| TW201237483A (en) * | 2011-03-11 | 2012-09-16 | Ct A Photonics Corp | Optoelectronic hybrid interconnect |
| CN103713363A (en) * | 2014-01-03 | 2014-04-09 | 长芯盛（武汉）科技有限公司 | Connecting assembly of USB 3.0 type optical fiber connector |
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