- Robust of USB3.0 & Innovative Technology of Toshiba Teli Co.

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1 International Imaging Seminar 2016 Why USB3.0? - Robust of USB3.0 & Innovative Technology of Toshiba Teli Co. Date: Thursday, Dec. 8 th 2016 Time: 12:10-13:00 Place: Seminar Room, Pacifico Yokohama Kishi Junji Specialist of Visual Components Development Div.

2 Requirement about this document This document contains technical information which Toshiba Teli Co. is working on Product information in this document are on plan without any commitment for marketability. And, specifications under development are subject to change without prior notice. Please contact our sales staff for the latest information. Unauthorized duplication, disclosure, second use, reprint and reuse of this document are not allowed. * Some of the names and logos of company, organization, standard might be registered trade mark of each. 2

3 Agenda Robustness of USB3 Vision Teli s unique technology for robust enhancement Examples of solution 3

4 Robustness of USB3 Vison 4

5 What s Robustness? What is Robustness? Strength Stability, Solid What is very robust camera? To get desired image surely in desired timing 5

6 Robustness of Camera What factor decides robustness of camera? Where image data is missed? Missed in software missing in the camera missing in communication path missing in host controller 6

7 Missing in the camera Sensor reading A B C D E Camera buffer overflow D B C C Buffer in camera A B B Interface output A B Image output have to wait due to host or interface factors Depending on interface spec., camera buffer capacity 7

8 Missing in communication path Good circumstances noise, attenuation Depending on interface spec., cable quality Poor circumstances 8

9 Missing in host controller camera interface back plane (e.g. PCI-Express) tight backplane buffer of host controller overflow Depending on interface spec., host controller buffer capacity 9

10 Missing in software Application Light CPU load Heavy CPU load Packet processing image frame making Device driver / API Depending on Packet processing contents, CPU load 10

11 What s robustness of USB3 Vision In case of USB, host controller manages all sending timing host controller sends only in case opponent is ready to receive Frequent waiting Buffer processing is necessary application delayed automatically Hardware packet processing device driver / API wait Low error rate & firm resending data No missing Low CPU load 11

12 Comparison with various interface USB2.0 GigE Vision Camera Link 12

13 What s robustness of USB2.0? USB2.0 has low robustness in communication path frequent waiting Buffer processing is necessary Delayed automatically Hardware Packet processing application device driver / API wait error rate and resending data are not good enough No missing Low CPU load 13

14 Comparison with USB2.0 Error rate issue Cannot distinguish same bit sequence DC levels are unmatched in case number of 0 and 1 are different USB2.0 has max 6 sequence of same bit no DC balance compensation USB3.0 has max. 4 USB3.0 has compensation 14

15 Comparison with USB2.0 Resending data issue request Data sending response No error notice function in the sequence! Host request response Missing response Camera Data sending Is this data received? 15

16 Comparison with USB2.0 In case of USB3.0 request LGOOD Data sending LGOOD response LGOOD Link layer response with LGOOD host request LGOOD response camera LGOOD Data sending LBAD LGOOD Error notice with LBAD 16

17 How about robustness of GigE Vision? GigE Vision has high robustness in communication path However, robustness varies depend on CPU load because missing data cannot be detected. Data for resending should be saved application Software manages most of packet processing device driver / API Low error rate Missing data cannot be detected Heavy CPU load 17

18 Comparison with GigE Vision GigE Vision (Ethernet) allows receiver to throw packet away No notice to sender in this case? throw away? Does not know it thrown away Does not know it sent Missing packet is detected only by timeout 18

19 Comparison with GigE Vision In case of GigE Vision (Ethernet), most of packet are processed by software Heavy CPU load Image data GVSP MAC Software processing Image data IP Image data UDP Image data GVSP GVSP GVSP GVSP Image data UDP UDP UDP IP IP MAC Hardware processing Packet processing might cause missing USB3 Vision GigE Vision 19

20 What is robustness of Camera Link? In case of Camera Link, electric physical layer specifications are not standardized and, no function of error detecting and resending data application Any time ready for image output Output Valid signal and image data Making frame data on host controller Device driver / API No physical layer standard No error detection and no resending data No missing Light CPU load 20

21 Toshiba Teli s unique technology for robustness 21

22 Enough robustness? USB3.0 compliance test is cleared Is that enough? What USB3.0 compliance test ensure is Secured recovery from error High connectivity without compatibility problem Performance is not secured! 22

23 Secured recovery from error Recovered from error but Sending data when error is occurred are not secured depend on error cause! It occurs with error recovery near physical layer (Link Recovery) host camera Link Recovery Is this packet received by host? Error is caused including packet already sent 23

24 Secured error recovery Error in a sequence of data sending In case of hard disk In case of camera Missing by file unit Missing by frame unit Can be requested by file unit Failed in getting image frame Required operational conditions are severer than other USB3.0 equipment! 24

25 Secured recovery from error Teli s unique handling Packet sending is continued after Link Recovery host camera Link Recovery host camera Link Recovery Suppressing Link Recovery caused by camera Unique handling according to USB3.0 standard 25

26 Enough robustness? Enough robustness of camera Why camera robustness is enough? Anything concerns USB3.0 connection affects! 26

27 Enough robustness? How to check robustness of factors other than camera? BERT (Bit Error Rate Test) function can be used Test pattern * CMOS model only Loop back Receiving data Data comparison Detecting error Verifying actively robustness of USB3.0 connection! 27

28 Solution examples 28

29 Solution example -1 Semiconductor manufacturing equipment Use : Bonder, AOI Camera : BU406M, BU406MC Image is stopped Cable caused the problem NG cable Solution by replacing cable with our recommended one Recommended cable 29

30 Solution example -2 Medical equipment Use : Biopsy Camera : BU130 Connected as USB2.0 Early host controller for USB3.0 caused the problem Solution by setting change of host 30

31 Introduction of Toshiba Teli s exhibition booth 31

32 Introduction of Toshiba Teli Exhibition booth entrance Seminar hall entrance TOSHIBA TELI 32

33 Exhibiting Contents Latest products info. Innovative technology Unique items Exhibition & demo of solution Partner s products 33

34 Exhibiting Contents Integration of FA & Monitoring solution Image processing library / demo Latest surveillance cameras 34

35 Thank you for paying attention to our seminar today. Please visit our booth. USB3.0 cameras are exhibited there. * Company name, group name, standard name and logo might be their trademarks or registered trademark 35

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