i-AVB(Audio/Video Bridging) 프로토콜 분석 도구 설계
|
|
|
- 화주 호
- 6 years ago
- Views:
Transcription
1 IEEE802.1 AVB: 차량용 AV Bridging 기술 윤종호한국항공대한국이더넷포럼
2 Ethernet
3 Ethernet 계층구조 MAC PHY
4 Networking Requirements in Vehicle
5 AVB 출발점 1 ( 2003)
6 AVB 출발점 2 : IEEE1394/Firewire
7 IEEE802.3 Residential Ethernet NEXT Generation AV Connector
8 Networked Audio -Audio=Low Jitter/Delay -Audio Distribution over Ethernet - 방식 -L1 : EtherSound -L2 : CobraNet 8
9 이더넷기반 Audio 분배기술의종류 EtherSound CobraNet IEEE802.1 AVB
10 Limited Delays in Home Recording Applications
11 Need for Time Synchronization Left + Right Channels Synchronization
12 AVB 관련프로토콜스택 802.1av Forwarding and Queuing Enhancements for Time-Sensitive Stream AV 프레임전송기능지원및남는대역에서의일반프레임전송기능을지원하는 traffic shaper 기능 802.1as Timing and Synchronization for Time- Sensitive Applications in Bridged LAN AV장치간시간동기화기술 802.1at Stream Reservation Protocol 대역예약프로토콜 802.1ba AVB 브리지및단말이갖추어야할기능열거 IEEE 1722 AVB Transport Protocol AV 스트림전달을위한 encapsulation 기능
13 802.1av : Periodic + Aperiodic Transport MOST 기술 Ethernet PowerLink for Industrial Ethernet MOST, Ethernet PowerLink, WiFi, Bluetooth, Fieldbus,...
14 802.1av : Forwarding and Queuing for Time-Sensitive Streams AV용 MAC TX Fifo Scheduler with Traffic Shaper Shaper using Credit : Limits X bytes in cycle n
15 Ieee802.1av Credit based Traffic shaper
16 16 Aircraft Full-duplex Ethernet ( 참고 ) AFDX 항공용이더넷기반제어통신망기술 A380 에채용됨. 실시간지원기능 전송주기를결정하는 Bandwidth Allocation Gap(BAG) 에의한대역할당 Token bucket 을사용하는트래픽폴리싱지원
17 IEEE802.1at Multiple Stream Reservation Protocol(mSRP) Admission control 을통한 L2 기반대역예약프로토콜 참고 : Multiple Registration Protocol (MRP:802.1ak) SRP 의구성요소 Multiple Registration Protocol (MRP:802.1ak) 의응용인 MMRP, MVRP 와 이것의 3 번째응용으로추가된 MSRP (35.1) 로구성됨. MRP 의종류 Multiple MAC Registration Protocol (MMRP): used to control the propagation of Talker registrations Multiple VLAN Registration Protocol (MVRP) : declare membership in a VLAN where a Stream is being sourced. This allows the Data Frame Priority ( (a)) to be propagated along the path from Talker to Listener(s) in tagged frames. MSRP will not allow Streams to be established across Bridge Ports that are members of the untagged set (8.8.2) for the related VLAN ID. Multiple Stream Registration Protocol (MSRP) : signaling protocol that provides end stations with the ability to reserve network resources. [ 참고 ] 802.1ak : Multiple Registration Protocol (MRP) 기존 2가지 MRP Applications MVRP : VLAN 등록 MMRP : Group MAC주소등록 [SRP를위해, MSRP가세번째 MRP 응용으로추가됨 ) [ 참고 ] 이것은기존 GVRP 및 GMRP를대체함. ( 즉 GARP를대체한것이 MRP임 )
18 MSRP TSpec Using a simple TSpec (Traffic Specification) Bandwidth in Kbytes/s Frame Rate in frames/s
19 MSRP 절차 1 : Registration Initiated by a Listener
20 MSRP 절차 2 : Reservation
21 MSRP : ACK
![[ 참고 ]](/docs-images/90/102525479/images/22-0.jpg "실패시")
22 [ 참고 ] 실패시
23 IEEE802.1as : Time synchronization
24 Jitter/ 영향 지터 이더넷허브출력예 24
25 Need for Time Syncrhonization SUBMARINE SALVAGE OPERATION
26 동기용프로토콜 상호연결된시스템에서클럭들간에마스터 - 슬레이브관계를정하고, 모든클럭을그랜드마스터클럭에동기시키는기술 IEC61158 Synchronous Ethernet Carrier 급 IEEE1588 V1/V2/(V3) Hardware-assisted time sampling 기능사용 Frequency 및 Time 동기 IEEE802.1AS IEEE1588 Capability over multiple MAC(Ethernet,WLAN, EPON,) RFC1305 Network Timing Protocol (NTP) 26
27 PHY level Timestamping 27
28 Cascaded 될경우 Jitter 가증가됨. 28
29 IEEE1588 Ver.1 Synchronization 기능 Symmetric link 가정 29
30 IEEE1588 Ver.1 절차 Sync/FollowUp/DelayReq/DelayResp 메시지사용 30
31 IEEE1588 v2 추가된기능 Transparent Clock(TC) 추가 Path Delay(PDelay) 측정기능추가 이웃간전파지연시간측정 802.1as 에서사용됨. 31
32 구현예 (1588 PTP v1) Ethernet Switch 경유시 직접연결시
33 [ 참고 ]1588 v1 패킷의예
34 IEEE 1722: AVB L2 Transport Protocol(AVB TP) 기능 Encapsulation Raw, compressed audio format 표시등 Latency Normalization using timestamp Timing and Synchronization Session Management AVB stream ID 할당 IEC ~-7[ 참고 ] (SD-DVCR) (MPEG2 Compressed Audio/Video) (Uncompressed Audio/Music) (Satellite TV MPEG) (Uncompressed Video) IIDC (Uncompressed Industrial Cameras) [ 참고 ] IEC Consumer audio/video equipment - Digital interface is a technical standard for a digital interface that is used by IEEE 1394 (FireWire) de vices for audio and video equipment. IEEE : Device Discover, Enumeration, Connection Management and Control Protocol for AVTP devices
35 예 : I 2 S Digital Audio 의수납절차
36 P1722 : Latency Normalization 기능
37 P1722 : Latency Normalization 기능
38 IEEE802.1ba AVB 요구사항규격서 MSRP절차를이용한 AVB stream설정 AVB domain탐색 (SRP 및 gptp를지원하는영역 ) Payload size = 1500 byte Energy Efficient Ethernet 기능지원
39 IEEE802.1ba: Architecture of AVB networks Non-AVB components : 배제함 Domain boundary의감지방법 MSRP(Multiple Stream Registration Protocol) gptp(generalized precision time protocol)
40 IEEE802.1ba: Latency Requirements 2 가지요구사항 2 ms for SR Class A : 7 hops of 100 Mb/s Ethernet with maximum frame size of 1522 octets. 50ms : 에염두를둠. 무선구간지연 =20msec 이므로, 2 hops of n WiFi 는가변대역폭을가지므로, 6.6 절참조 (6.6 Variable data rate LANs)
41 IEEE802.1ba : Sync packet 송신규격 송신주기 : 1/8 ~1s 시간정밀도 : 7 hops 인경우, 1usec 이내
42 관련 evaluation board XMOS - AVB Audio Endpoint Kit Stereo analog audio in/out via 3.5mm jack/rca sockets Up to 8 channels via I2S headers
43 XMOS AVB System Description
44 XMOS AVB Software Reference
45 AVB Testbed
46 Ether Tap 의구성 KSZ8051MLL PHY KSZ8051MLL 1:2 LV244A Fanout LV244A 1:2 LV244A Fanout LV244A KSZ8051MLL PHY HY KSZ8051MLL PHY KSZ8051MLL PHY KSZ8051MLL KSZ8051MLL Tapper
47 Protocol Analyzer(IEEE P1722) IEEE 1722 AVBTP
48 Protocol Analyzer(IEEE(IEEE802.1at) IEEE Qat
49 Protocol Analyzer(IEEE(IEEE802.1as) IEEE AS
50 AVB for Automotives
51 Automotive Data Bus CAN Mbps with CSMA/NDBA(Non-destructive bit-wise arbitration ) over 40m~1Km Short Message with 8bytes LIN 19.2Kbps, Single wire FlexRay < 10Mbps with TDMA Bus MOST < 150Mbps with TDMA Ring Ethernet : Low-cost, Field-Proven On-Board-Diag (OBD) AVB : AVNu Alliance 참조 * AFDX ( 항공기용데이터버스 )
52 CAN motor sensor actuator application CPU messages Stand-alone CAN controller transceiver Bit stream 3.3~5V 0V Embedded MCU application CPU On-chip CAN Controller transceiver Terminator Resistor 120R 3.5V 2.5V 2.5V 1.5V CAN_H CAN_L 120R
53 LIN Local Interconnect Network 19.2Kbps Single Wire UART format
54 Issues Real Time Performance (QoS) Guaranteed Bandwidth per Virtual Link Low Latency 802.1av can support. Light-weight cabling BroadR-Reach : One pair cable with 100Mbps, OPEN(One Pair EtherNet) Alliance One pair cable with 1Gbps : Reduced Pair Gigabit Ethernet(RTPGE) Reliability in Extreme Conditions -40 C to +125 C RSTP with quick recovery => it might need RSTP quick version (e.g. better timers) AS with quick [re-]synchronization 802.1Qat with quick stream [re-]reservation Topology Ring or Star? Star Extended Life Times and Support silicon level life times of 30 years or more
55 Ethernet for Automotives 1 st phase : On-board diagnostics (OBD) 용 2 nd phase : Entertainment/Suround View 3 rd phase : Backbone network
56 구성
57 Gateway 의구성 Bosch/ETAS s GW
58 CAN-GW-Ethernet 계층구조
59 Automotive Profile with AVB by AVnU Alliance 32 endpoints 7 switch hop 24m per link, e2e link = 30 m Cycle : 125 usec, 250 usec(classb) E2e delay : 100usec over 3 hops (general AVB=2 msec) Network Recovery < 100ms with Rapid STP Using small frame of 258 bytes
60 ACK Frame 추가사용 CAN 은 Link 계층 ACK 기능이있으므로, 이를 emulation 하기위하여 IEEE1722 헤더에 subtype 을지정하여사용.
61 One Pair EtherNet (OPEN) 100Mbps 125Mbaud 66.6Mbaud : UTP 사용가능 BER over single pair cable with FDX
62 AVB Gen 2 for Automotive Control To be.. Ultra Low latency < 3usec/hop (GbE)... How to? Refine SRP(802.1at) and 802.1av Time-aware shaper Preemption Multipath/Redundant SRP Cut-through Time-Triggered...
63 AUTOSAR with AVB (AUTomotive Open Software ARchitecture) APP Runtime Environment (RTE) Comm Services AUTOSAR COM Diagnostic Communication Manager Communication Manager Socket Adapter CAN Transport Communication PDU Router HAL FlexRay Transport I/O HAL System/Memory Services application UDP, TCP, IP, ICMP CPU Comm Controller IEEE av, as, at AVB Gen2 Eth if Communication HAL Can if Onboard Device/Memory HAL Microcontroller Abstraction Layer(MCAL) Eth driver Communication Drivers Can driver Lin driver Fr driver IO Drivers(ADC,PWM) I2s driver I2c driver Memory/Microcontoller Drivers (Memory, WDT,..) transceiver r MAC PHY One Pair Cable CAN LIN FlexRay/MOST codec sensor actuator
64 AVB 문제점 Recall AV frame Async frame Async frame MAC hdr S 수퍼프레임 idle slot S S idle slot Cycle(125usec) S S A (a) Ethernet over TDM slot 기반 idle slot A 동기구간 비동기구간 MAC hdr idle slot idle slot (b) 고정된길이의 AV 트래픽전달방법 cycle Async frame Async frame 동기구간 비동기구간 AV frame AV frame AV frame Async frame Async frame Async frame (c) 가변길이의 AV 트래픽전달방법
65 A close look S S A S S A Credit-based scheduler with separate buffers Receiver Sender MAC HOL blocking MAC AV frm AV frm Async frm AV frm AV frm Async frm AV frm Cycle (125usec) Delayed AV frame A S A S S sw sw sw S S A S A
66 802.1p Jitter:(Simulation Result) T A (usec) Time (usec) Time (usec) Time (usec) (a)802.1p(ρ S =0.1, ρ A =0.1) T A (usec) (b)802.1p(ρ S =0.5, ρ A =0.4) T A (usec) (a)ideal (Zero Jitter) AV 패킷의시스템지연시간
67 Hold, Fragmentation 방법 Hold 수퍼프레임 수퍼프레임 수퍼프레임시작지연 동기구간 비동기프레임 #1 비동기프레임 #2 동기구간 기존방식 동기구간 비동기프레임 #1 동기구간 비동기프레임 #2 Hold 방식 Fragmentation/Reassembly 동기구간 동기구간 비동기프레임 #1 비동기프레임 #1 수퍼프레임 수퍼프레임시작지연 비동기프레임 #2 #2-1 동기구간 동기구간 동기구간축소 #2-2 수퍼프레임 기존방식 분할방식
68 To be.. Flow-based IP layer IP Expedited Flow IP Classifier Flow-based IP layer IP Expedited Flow IP Flow Classifier MPLS layer CoS Scheduler Shaper/Dropper Marker/ Meter MPLS over Ethernet encap Over-Provisioning, RSVP-TE, Routing Protocols(OSPF, BGP) Label Switching Link Layer AV Queue Scheduler Shaper/Dropper Marker/ Meter Async Queue Link-layer Reservation protocols Spanning Tree Protocols Link Layer 802.1p Ethernet Sync Ethernet MAC/VLANid Switching Guaranteed Digital Pipe 802.1p CoS pipe 802.1p pipe (a) Semi-QoS Scheme (b) Full-QoS Scheme with AVB Ethernet (TBD)
69 요약 AVB 기술소개 Automotive bus 소개 Stay tune... AVNu : AVB Alliance AVB Gen.2 IEEE1588 v3(?) AutoSAR over Ethernet Remind... 실제기술채용회사는자동차조립및부품제조회사임을명심 자동차제조사는 IT분야의전문가집단이아님. IT관련개발도구 (IDE)/ 부품은이들을배려하여개발 / 제공해야함.
70 또다른응용분야 : Industrial Ethernet
71
72 FIN Thanks Danke schön Merci Grazie
<3031B0ADB9CEB1B82E687770>
ISSN 1598-0170 (Print) ISSN 2287-1136 (Online) http://www.jksii.or.kr 다채널 멀티미디어 전송용 임베디드 Audio Video Bridging 플랫폼 설계 및 구현 Design and Implementation of an Embedded Audio Video Bridging Platform for Multichannel
1.LAN의 특징과 각종 방식
0 Chapter 1. LAN I. LAN 1. - - - - Switching - 2. LAN - (Topology) - (Cable) - - 2.1 1) / LAN - - (point to point) 2) LAN - 3) LAN - 2.2 1) Bound - - (Twisted Pair) - (Coaxial cable) - (Fiber Optics) 1
歯A1.1함진호.ppt
The Overall Architecture of Optical Internet ETRI ? ? Payload Header Header Recognition Processing, and Generation A 1 setup 1 1 C B 2 2 2 Delay line Synchronizer New Header D - : 20Km/sec, 1µsec200 A
歯I-3_무선통신기반차세대망-조동호.PDF
KAIST 00-03-03 / #1 1. NGN 2. NGN 3. NGN 4. 5. 00-03-03 / #2 1. NGN 00-03-03 / #3 1.1 NGN, packet,, IP 00-03-03 / #4 Now: separate networks for separate services Low transmission delay Consistent availability
歯이시홍).PDF
cwseo@netsgo.com Si-Hong Lee duckling@sktelecom.com SK Telecom Platform - 1 - 1. Digital AMPS CDMA (IS-95 A/B) CDMA (cdma2000-1x) IMT-2000 (IS-95 C) ( ) ( ) ( ) ( ) - 2 - 2. QoS Market QoS Coverage C/D
TCP.IP.ppt
TCP/IP TCP/IP TCP/IP TCP/IP TCP/IP Internet Protocol _ IP Address Internet Protocol _ Subnet Mask Internet Protocol _ ARP(Address Resolution Protocol) Internet Protocol _ RARP(Reverse Address Resolution
TTA Verified : HomeGateway :, : (NEtwork Testing Team)
TTA Verified : HomeGateway :, : (NEtwork Testing Team) : TTA-V-N-05-006-CC11 TTA Verified :2006 6 27 : 01 : 2005 7 18 : 2/15 00 01 2005 7 18 2006 6 27 6 7 9 Ethernet (VLAN, QoS, FTP ) (, ) : TTA-V-N-05-006-CC11
1217 WebTrafMon II
(1/28) (2/28) (10 Mbps ) Video, Audio. (3/28) 10 ~ 15 ( : telnet, ftp ),, (4/28) UDP/TCP (5/28) centralized environment packet header information analysis network traffic data, capture presentation network
Chapter11OSPF
OSPF 111 OSPF Link state Interior Gateway Protocol OSPF 1988 IETF OSPF workgroup OSPF RFC 2383 version 2 Chapter OSPF Version 2 OSPFIGP AS 1 1111 Convergence Traffic Distance Vector Link state OSPF (Flooding),
% 100 50 1 * Lightwave 98/4, M. Shariff, Cisco systems Inc. 1996 1997 1998 1999 2000 2001 = * APT Office Home MAN POP POP MAN APT Office Home Access Network Access Network?! DWDM OXC MPLS, MPLamdaS ADSL
DBPIA-NURIMEDIA
논문 10-35-03-03 한국통신학회논문지 '10-03 Vol. 35 No. 3 원활한 채널 변경을 지원하는 효율적인 IPTV 채널 관리 알고리즘 준회원 주 현 철*, 정회원 송 황 준* Effective IPTV Channel Control Algorithm Supporting Smooth Channel Zapping HyunChul Joo* Associate
歯Cablexpert제안서.PDF
: CableXpert TM TEL:02-576-0471 / E-mail : lab@dakos.net 1. (CableXpert TM :CME1100 ) (PSTN) 100,. (CableXpert TM ).,,.... : : 324-1 2 : 02-576-0471 : 02-576-0474 : (E-mail : jangpo@dakos.net) 3. 1) S/W
Subnet Address Internet Network G Network Network class B networ
Structure of TCP/IP Internet Internet gateway (router) Internet Address Class A Class B Class C 0 8 31 0 netid hostid 0 16 31 1 0 netid hostid 0 24 31 1 1 0 netid hostid Network Address : (A) 1 ~ 127,
SLA QoS
SLA QoS 2002. 12. 13 Email: really97@postech.ac.kr QoS QoS SLA POS-SLMS (-Service Level Monitoring System) SLA (Service Level Agreement) SLA SLA TM Forum SLA QoS QoS SLA SLA QoS QoS SLA POS-SLMS ( Service
°í¼®ÁÖ Ãâ·Â
Performance Optimization of SCTP in Wireless Internet Environments The existing works on Stream Control Transmission Protocol (SCTP) was focused on the fixed network environment. However, the number of
2005 2004 2003 2002 2001 2000 Security Surveillance Ubiquitous Infra Internet Infra Telematics Security Surveillance Telematics Internet Infra Solutions Camera Site (NETWORK) Monitoring & Control
Switching
Switching 강의의목표 Switching/Switching Network의필요성을이해한다. 세가지대표적교환기술에열거하고그차이를설명할수있다. 각교환기술의장, 단점을비교하여설명할수있다. Packet Switching 에서 Fairness 문제와 Pipelining 을 패킷크기와연계하여설명할수있다. Soft Switch 개념을이해하고설명할수있다. 교재 Chapter
1. 회사소개 및 연혁 - 회사소개 회사소개 회사연혁 대표이사: 한종열 관계사 설립일 : 03. 11. 05 자본금 : 11.5억원 인 원 : 18명 에스오넷 미도리야전기코리 아 미도리야전기(일본) 2008 2007 Cisco Premier Partner 취득 Cisco Physical Security ATP 취득(진행) 서울시 강남구 도심방범CCTV관제센터
Microsoft PowerPoint - User Manual-100 - 20150521.pptx
CIC-100 사용 설명서 (User Manual) 나의 커뮤니티, 보는 이야기 TocView [모델명 : CIC-100] 주의사항 매뉴얼의 내용은 서비스 향상을 위하여 개별 사용자의 사전 동의 또는 별도의 공지 없이 변경될 수 있습니다. 사용자의 인터넷 환경에 따라 제품 성능 및 기능의 제작 또는 사용이 불가능할 수 있습니다. 본 제품의 이용 중 장애에 의하여
歯김병철.PDF
3G IETF byckim@mission.cnu.ac.kr kckim@konkuk.ac.kr Mobile IP WG Seamoby WG ROHC WG 3G IETF 3G IETF Mobile IP WG 3GIP Seamoby WG ROHC WG MIP WG / NAI Mobile IP / AAA IPv4 / MIP WG RFC2002bis MIPv6 INRIA
통신서비스품질평가보고서 2017 Evaluation Report for the Quality of Communication Services
www.nia.or.kr 2017 통신서비스품질평가보고서 2017 Evaluation Report for the Quality of Communication Services www.nia.or.kr 2017 통신서비스품질평가보고서 2017 Evaluation Report for the Quality of Communication Services www.nia.or.kr
BGP AS AS BGP AS BGP AS 65250
BGP AS 65000 AS 64500 BGP AS 65500 BGP AS 65250 0 7 15 23 31 BGP Message 16byte Marker 2byte Length, 1byte Type. Marker : BGP Message, BGP Peer.Message Type Open Marker 1.. Length : BGP Message,
6주차.key
6, Process concept A program in execution Program code PCB (process control block) Program counter, registers, etc. Stack Heap Data section => global variable Process in memory Process state New Running
Microsoft PowerPoint ppt
Wireless LAN 최양희서울대학교컴퓨터공학부 Radio-Based Wireless LANs Most widely used method Adv: penetrating walls and other obstacles with little attenuation. Disadv: security, interference, etc. 3 approaches: ISM
Microsoft PowerPoint - 2.Catalyst Switch Intrastructure Protection_이충용_V1 0.ppt [호환 모드]
![Microsoft PowerPoint - 2.Catalyst Switch Intrastructure Protection_이충용_V1 0.ppt [호환 모드]](/thumbs/74/69694488.jpg "Microsoft PowerPoint - 2.Catalyst Switch Intrastructure Protection_이충용_V1 0.ppt [호환 모드]")
Catalyst Switch Infrastructure Protection Cisco Systems Korea SE 이충용 (choolee@cisco.com) Overview DoS (Denial of Service) 공격대상 - Server Resource - Network Resource - Network devices (Routers, Firewalls
chapter4
Basic Netw rk 1. ก ก ก 2. 3. ก ก 4. ก 2 1. 2. 3. 4. ก 5. ก 6. ก ก 7. ก 3 ก ก ก ก (Mainframe) ก ก ก ก (Terminal) ก ก ก ก ก ก ก ก 4 ก (Dumb Terminal) ก ก ก ก Mainframe ก CPU ก ก ก ก 5 ก ก ก ก ก ก ก ก ก ก
Network seminar.key
Intro to Network .. 2 4 ( ) ( ). ?!? ~! This is ~ ( ) /,,,???? TCP/IP Application Layer Transfer Layer Internet Layer Data Link Layer Physical Layer OSI 7 TCP/IP Application Layer Transfer Layer 3 4 Network
UDP Flooding Attack 공격과 방어
황 교 국 (fullc0de@gmail.com) SK Infosec Co., Inc MSS Biz. Security Center Table of Contents 1. 소개...3 2. 공격 관련 Protocols Overview...3 2.1. UDP Protocol...3 2.2. ICMP Protocol...4 3. UDP Flood Test Environment...5
RAPIEnet 통신망 기술 IEC 규격 추진 이력 07.01 10.07 10.08 11.12 12.03 13.09 15.12 기술발표 62439-7 NP 통과 61158, 61784-2 62439-7 IS 발간 61784-3-17 NP 61918, 61784-5-17
기획특집 RAPIEnet 통신망 기술 권 대 현 책임연구원 / LS산전 Automation R&D Center daehyunka@lsis.com RAPIEnet은 대한민국의 산업 강화와 외국 진출 교두 보 마련을 위하여 Topology, Performance, Maintenance 에 대해 산업 분야의 요구사항을 수렴하여 개발되었으 며, 지명도 확보, 기술
Overview
Ethernet in the First Mile http://grouper.ieee.org/groups/802/3/efm/ Overview Issue Support subscriber access network topologies: Point to multipoint on optical fiber(pon) Point to point on optical fiber
Microsoft PowerPoint - eSlim SV5-2410 [20080402]
![Microsoft PowerPoint - eSlim SV5-2410 [20080402]](/thumbs/40/20557413.jpg "Microsoft PowerPoint - eSlim SV5-2410 [20080402]")
Innovation for Total Solution Provider!! eslim SV5-2410 Opteron Server 2008. 3 ESLIM KOREA INC. 1. 제 품 개 요 eslim SV5-2410 Server Quad-Core and Dual-Core Opteron 2000 Series Max. 4 Disk Bays for SAS and
hd1300_k_v1r2_Final_.PDF
Starter's Kit for HelloDevice 1300 Version 11 1 2 1 2 3 31 32 33 34 35 36 4 41 42 43 5 51 52 6 61 62 Appendix A (cross-over) IP 3 Starter's Kit for HelloDevice 1300 1 HelloDevice 1300 Starter's Kit HelloDevice
Microsoft Word doc
TCP/IP 구조 1. I.P 구조설명 2. ARP 구조설명 3. TCP 구조설명 4. UDT 구조설명 5. RIP 구조설명 6. BOOTP 구조설명 7. TFTP 구조설명 destination addr source addr type data CRC 6 6 2 46-1500 4 type 0X0800 IP datagram 2 46-1500 type 0X0806
() Aloha Netowrk ether(,, )network Ehternet, DEC, ( DIX(DEC, Intel, Xerox) IEEE(, ) 5 9,, (Xerox) (Bob Metcalfe), (, ) A
1 2 3 4 1960 1973 () Aloha Netowrk ether(,, )network Ehternet, DEC, ( DIX(DEC, Intel, Xerox) IEEE(, http://wwwieeeorg/, ) 5 9,, (Xerox) (Bob Metcalfe), (, ) Aloha Network 1960 / IEEE CSMA/CD IEEE () 30
/ TV 80 () DAB 2001 2002 2003 2004 2005 2010 Analog/Digital CATV Services EPG TV ( 60 ) TV ( Basic, Tier, Premiums 60 ) VOD Services Movies In Demand ( 20 ) Education N- VOD (24 ) Digital Music
1. GigE Camera Interface를 위한 최소 PC 사양 CPU : Intel Core 2 Duo, 2.4GHz이상 RAM : 2GB 이상 LANcard : Intel PRO/1000xT 이상 VGA : PCI x 16, VRAM DDR2 RAM 256MB
Revision 1.0 Date 11th Nov. 2013 Description Established. Page Page 1 of 9 1. GigE Camera Interface를 위한 최소 PC 사양 CPU : Intel Core 2 Duo, 2.4GHz이상 RAM : 2GB 이상 LANcard : Intel PRO/1000xT 이상 VGA : PCI x
SK IoT IoT SK IoT onem2m OIC IoT onem2m LG IoT SK IoT KAIST NCSoft Yo Studio tidev kr 5 SK IoT DMB SK IoT A M LG SDS 6 OS API 7 ios API API BaaS Backend as a Service IoT IoT ThingPlug SK IoT SK M2M M2M
untitled
Cable Modem 2004.10 sgkwon@empal.com 1.... 1 2. CABLE MODEM?... 2 2.1.... 2 2.2. /... 3 2.3.... 4 3.... 5 3.1.... 5 3.1.1. TV, 2009 4 3... 5 3.1.2. TV Broadband... 5 3.1.3. NGNA... 6 3.2.... 7 3.2.1. TV
이 발명을 지원한 국가연구개발사업 과제고유번호 201109990000 부처명 지식경제부 연구사업명 IT 융합 고급인력과정 지원사업 연구과제명 스마트 자동차를 위한 AUTOSAR 기반 차량 내외부 통신 플랫폼 및 응용기술 주관기관 정보통신산업진흥원 연구기간 2011.06
(19) 대한민국특허청(KR) (12) 공개특허공보(A) (11) 공개번호 10-2013-0087326 (43) 공개일자 2013년08월06일 (51) 국제특허분류(Int. Cl.) H04L 12/40 (2006.01) H04L 5/22 (2006.01) (21) 출원번호 10-2012-0008610 (22) 출원일자 2012년01월27일 심사청구일자 전체
슬라이드 제목 없음
21 ETRI 2001. 9. 12. jwyang@etri.re.kr .. (2002.2 ), (, 2002 ). 1 : 2 : 3 : 9 15. ( ) 1 ( download) 1 (2002.2 ), 1 1 ( ) ( ) 1 ( ) 1 (TOEIC, TOEFL, TEPS ) 1 ( ) 305-350 161 E-mail : eakang@etri.re.kr Tel
BJFHOMINQJPS.hwp
제1 과목 : 디지털 전자회로 1. 다음 회로의 출력전류 Ic 의 안정에 대한 설명 중 옳지 않은 것 Ie를 크게 해치지 않는 범위 내에서 Re 가 크면 클수록 좋 출력파형이 크게 일그러지지 않는 범위 내에서 β 가 크면 클수록 좋 게르마늄 트랜지스터에서 Ico가 Ic 의 안정에 가장 큰 영향을 준 Rc는 Ic 의 안정에 큰 영향을 준 6. 비동기식 모드 (mode)-13
디지털TV솔루션 브로셔
개요 [ADC] [DDC] [DAC] [VSC] 영상 / 음성 변환및압축 Ethernet Stream 전송및전시 저장및재생 입력 - SD 급영상동시 4CH - 디지털영상동시 2CH - Analog Audio 동시 2CH 영상 : H.264 압축 음성 : PCM 16bit HW 방식 Encoding 지원 Gigabit 이더넷전송 / 수신 낮은지연시간 ( 최대
AV PDA Broadcastin g Centers Audio /PC Personal Mobile Interactive (, PDA,, DMB ),, ( 150km/h ) (PPV,, ) Personal Mobile Interactive Multimedia Broadcasting Services 6 MHz TV Channel Block A Block
06이동통신
www.mke.go.kr + www.keit.re.kr Part.06 444 449 502 521 529 552 01 444 Korea EvaluationInstitute of Industrial Technology IT R&D www.mke.go.kr www.keit.re.kr Ministry of Knowledge Economy 445 02 446 Korea
bn2019_2
arp -a Packet Logging/Editing Decode Buffer Capture Driver Logging: permanent storage of packets for offline analysis Decode: packets must be decoded to human readable form. Buffer: packets must temporarily
슬라이드 제목 없음
(JTC1/SC6) sjkoh@knu.ac.kr JTC1 JTC1/SC6/WG7 ECTP/RMCP/MMC (JTC1/SC6) 2/48 JTC1 ISO/IEC JTC1 Joint Technical Committee 1 ( ) ISO/TC 97 ( ) IEC/TC 83 ( ) Information Technology (IT) http://www.jtc1.org
歯최덕재.PDF
ISP Monitoring Tool OSPF SNMP, Metric MIB OSPFECMP 1 11 [6], Metric ISP(Internet Service Provider) Monitoring Tool, [5] , (Network Management System) SNMP ECMP Cost OSPF ECMP IGP(Interior Gateway Protocol)
. HD(High Definition). HD 1024x720, 1280x720 HD, 1980x [1]., UHD(Ultra High Definition) [1]. HD (1280x720 ) 4 (4K UHD:3840x2160 ) 16 (8K UHD:76
![. HD(High Definition). HD 1024x720, 1280x720 HD, 1980x [1]., UHD(Ultra High Definition) [1]. HD (1280x720 ) 4 (4K UHD:3840x2160 ) 16 (8K UHD:76](/thumbs/90/102605850.jpg ". HD(High Definition). HD 1024x720, 1280x720 HD, 1980x [1]., UHD(Ultra High Definition) [1]. HD (1280x720 ) 4 (4K UHD:3840x2160 ) 16 (8K UHD:76")
http://doi.org/10.5909/jeb.2011.16.5.834 HFC a), a), b), b), a) Transmission Method and Simulator Development with Channel bonding for a Mass Broadcasting Service in HFC Networks Hyunchul Shin a), Dongyul
Microsoft PowerPoint - eSlim SV5-2510 [080116]
![Microsoft PowerPoint - eSlim SV5-2510 [080116]](/thumbs/39/20150967.jpg "Microsoft PowerPoint - eSlim SV5-2510 [080116]")
Innovation for Total Solution Provider!! eslim SV5-2510 Opteron Server 2008. 03 ESLIM KOREA INC. 1. 제 품 개 요 eslim SV5-2510 Server Quad-Core and Dual-Core Opteron 2000 Series 6 internal HDD bays for SAS
SMB_ICMP_UDP(huichang).PDF
SMB(Server Message Block) UDP(User Datagram Protocol) ICMP(Internet Control Message Protocol) SMB (Server Message Block) SMB? : Microsoft IBM, Intel,. Unix NFS. SMB client/server. Client server request
20040131_장관보고자료
Flow-based Managed IP Solution -QSS 1 BcN 2 Corporate/ & High-End SMEs SME Residential Personal 3 BcN IT Contents Service Softswitch Call control QoS Manager MPLS-based Connections Managed IP Network Access
인켈(국문)pdf.pdf
M F - 2 5 0 Portable Digital Music Player FM PRESET STEREOMONO FM FM FM FM EQ PC Install Disc MP3/FM Program U S B P C Firmware Upgrade General Repeat Mode FM Band Sleep Time Power Off Time Resume Load
세션 3 (오이식).ppt
05. 7. 21 1. EAI 2. EAI Architecture 3. EAI 4. Copyright 2005 MOCOCO, Inc.. All rights reserved. Copyright 2005 MOCOCO, Inc.. All rights reserved. ntents EAI 1 EAI EAI EAI EAI EAI EAI EAI Copyright 2005
1아이리포 기술사회 모의고사 참조답안
아이리포지식창고 Data Link 계층프로토콜 STP 김우태컴퓨터시스템응용기술사 (matica5127@naver.com) STP(Spanning Tree Protocol) Concept + STP 을이해하기위한세가지개념 + STP 개요 - STP 정의 - Bridged LAN 에서의 Spanning Tree Algorithm - Bridge 구성에서의 Looping
, N-. N- DLNA(Digital Living Network Alliance).,. DLNA DLNA. DLNA,, UPnP, IPv4, HTTP DLNA. DLNA, DLNA [1]. DLNA DLNA DLNA., [2]. DLNA UPnP. DLNA DLNA.
![, N-. N- DLNA(Digital Living Network Alliance).,. DLNA DLNA. DLNA,, UPnP, IPv4, HTTP DLNA. DLNA, DLNA [1]. DLNA DLNA DLNA., [2]. DLNA UPnP. DLNA DLNA.](/thumbs/90/102511563.jpg ", N-. N- DLNA(Digital Living Network Alliance).,. DLNA DLNA. DLNA,, UPnP, IPv4, HTTP DLNA. DLNA, DLNA [1]. DLNA DLNA DLNA., [2]. DLNA UPnP. DLNA DLNA.")
http://dx.doi.org/10.5909/jeb.2012.17.1.37 DLNA a), a), a) Effective Utilization of DLNA Functions in Home Media Devices Ki Cheol Kang a), Se Young Kim a), and Dae Jin Kim a) DLNA(Digital Living Network
ARMBOOT 1
100% 2003222 : : : () PGPnet 1 (Sniffer) 1, 2,,, (Sniffer), (Sniffer),, (Expert) 3, (Dashboard), (Host Table), (Matrix), (ART, Application Response Time), (History), (Protocol Distribution), 1 (Select
untitled
(*) (*) pie H.264 VC-1 CAS DRM TCS itv M/W ACAP Advanced Common Application Platform ATSC Specific OCAP OpenCable Applications Platform Cable Specific GEM Globally Executable MHP DVB Specific MHP
<BBEABEF7B5BFC7E22DA5B12E687770>
2 40) 1. 172 2. 174 2.1 174 2.2 175 2.3 D 178 3. 181 3.1 181 3.2 182 3.3 182 184 1.., D. DPC (main memory). D, CPU S, ROM,.,.. D *, (02) 570 4192, jerrypak@kisdi.re.kr 172 . D.. (Digital Signal Processor),
PCServerMgmt7
Web Windows NT/2000 Server DP&NM Lab 1 Contents 2 Windows NT Service Provider Management Application Web UI 3 . PC,, Client/Server Network 4 (1),,, PC Mainframe PC Backbone Server TCP/IP DCS PLC Network
Microsoft Word - JAVS_UDT-1_상세_메뉴얼.doc
UDT-1 TRANSPORTER 한글 상세 제품 설명서 SoundPrime. 저작권 본 저작권은 Soundprime 이 소유하고 있습니다. Soundprime 의 허가 없이 정보 검색 시스템상에서 복사, 수정, 전달, 번역, 저장을 금지하며, 컴퓨터언어나 다른 어떠한 언어로도 수정될 수 없습니다. 또한 다른 형식이나 전기적, 기계적, 자기적, 광학적, 화학적,
<BFB5BBF3C1A4BAB8C3B3B8AEBDC3BDBAC5DB20BFACB1B82E687770>
Black Key Region Cr R Linear Key Region θ White Key Region Cb θ Table θ Table for Chroma Suppress 1 255 0 θc θ Table for Linear Key θs θw1 θs θw2 Radius Table R Table for Chroma Suppress 1 255 0 Rc R Table
CAN-fly Quick Manual
adc-171 Manual Ver.1.0 2011.07.01 www.adc.co.kr 2 contents Contents 1. adc-171(rn-171 Pack) 개요 2. RN-171 Feature 3. adc-171 Connector 4. adc-171 Dimension 5. Schematic 6. Bill Of Materials 7. References
AVN2100Kor_Ç¥Áö110818F
USER MANUAL 6.5 TFT LCD A/V and NAVIGATION SYSTEM 1 3 4 5 1 1 3 3 6 3 1 3 1 1 1 1 7 1 1 5 3 1 4 3 4 5 8 1 3 1 4 1 3 3 4 9 1 1 3 4 5 10 3 4 5 5 1 1 3 3 11 1 5 4 1 6 3 3 7 1 4 5 6 7 1 1 13 14 1 3 4 5 6
Spanning Tree Protocol (STP) 1
Spanning Tree Protocol (STP) 1 Index 1. Ethernet Loop 2. BPDU 3. Bridge ID, Root Bridge ID 4. PVST 에서의 Bridge ID 5. Path cost 6. Port ID 7. STP 의동작방식 8. STP Port 상태변화 2 1. Ethernet Loop - 이중화구성은많은장점을가지지만
PowerPoint 프레젠테이션
Reasons for Poor Performance Programs 60% Design 20% System 2.5% Database 17.5% Source: ORACLE Performance Tuning 1 SMS TOOL DBA Monitoring TOOL Administration TOOL Performance Insight Backup SQL TUNING
LAN케이블링
LAN Page1 1. Defacto De Jure (De jure ), (De Facto ),. (De Jure) : ISO ITU.,. ISO ITU KS, KICS, TTA. (De Facto) :. MS, IPX, IBM SNA. (Forum) :.. IETF, W3C, ATM ATM. Page2 2. American National Standards
OMA Bcast Service Guide ATSC 3.0 (S33-2) T-UHDTV 송수신정합 Part.1 Mobile Broadcast (Open Mobile Alliance) 기반 Data Model ATSC 3.0 을위한확장 - icon, Channel No.
Special Report_Special Theme UHDTV 지상파 UHD ESG 및 IBB 표준기술 이동관 MBC 기술연구소차장 2.1 개요 2.2 표준구성 TTA Journal Vol.167 l 63 OMA Bcast Service Guide ATSC 3.0 (S33-2) T-UHDTV 송수신정합 Part.1 Mobile Broadcast (Open Mobile
歯DCS.PDF
DCS 1 DCS - DCS Hardware Software System Software & Application 1) - DCS System All-Mighty, Module, ( 5 Mbps ) Data Hardware : System Console : MMI(Man-Machine Interface), DCS Controller :, (Transmitter
I
I II III (C B ) (C L ) (HL) Min c ij x ij f i y i i H j H i H s.t. y i 1, k K, i W k C B C L p (HL) x ij y i, i H, k K i, j W k x ij y i {0,1}, i, j H. K W k k H K i i f i i d ij i j r ij i j c ij r ij
FTTH 기술발표
2 3 xdsl /UTP FTTH / 2002 2005 2010 2 Mbps 6 Mbps 100Mbps * 10 Mbps 45Mbps 155Mbps FTTO / FTTD / Digital (DBS) 53Mbps/4km LMDS ADSL : Asymmetric Digital Subscriber Line HDSL : High speed Digital Subscriber
untitled
CAN BUS RS232 Line Ethernet CAN H/W FIFO RS232 FIFO IP ARP CAN S/W FIFO TERMINAL Emulator COMMAND Interpreter ICMP TCP UDP PROTOCOL Converter TELNET DHCP C2E SW1 CAN RS232 RJ45 Power
PON 광가입자망에서 Ethernet 전송 프로토콜 수용방안 연구
Ethernet PON 기술 윤종호한국항공대 yoonch@mail.hau.ac.kr 02-300-0124 광이더넷이사용되는곳 Point-to-point 스위치 스위치 LAN 광케이블 Access Network MAN Resilient Packet Ring (IEEE802.17) splitter OLT EPON (10Km, 1Gbps) IP Backbone (SONET
À̵¿·Îº¿ÀÇ ÀÎÅͳݱâ¹Ý ¿ø°ÝÁ¦¾î½Ã ½Ã°£Áö¿¬¿¡_.hwp
l Y ( X g, Y g ) r v L v v R L θ X ( X c, Yc) W (a) (b) DC 12V 9A Battery 전원부 DC-DC Converter +12V, -12V DC-DC Converter 5V DC-AC Inverter AC 220V DC-DC Converter 3.3V Motor Driver 80196kc,PWM Main
. IEEE WiMAX. WiMAX [2]. WiMAX Wang [3] WiMAX / (multicast/broadcast service) (Cross- Layer Optimization, CLO). Hosein [4] WiMAX (Variable Bit
![. IEEE WiMAX. WiMAX [2]. WiMAX Wang [3] WiMAX / (multicast/broadcast service) (Cross- Layer Optimization, CLO). Hosein [4] WiMAX (Variable Bit](/thumbs/58/42031640.jpg ". IEEE WiMAX. WiMAX [2]. WiMAX Wang [3] WiMAX / (multicast/broadcast service) (Cross- Layer Optimization, CLO). Hosein [4] WiMAX (Variable Bit")
http://doi.org/10.5909/jeb.2011.16.5.738 MAC/PHY QoS a), a), a) Research of QoS Control for Standardization on Real-time Multimedia Service Using MAC/PHY Feedback Min Geon Kim a), Junoh Kim a), and Doug
TEL:02)861-1175, FAX:02)861-1176 , REAL-TIME,, ( ) CUSTOMER. CUSTOMER REAL TIME CUSTOMER D/B RF HANDY TEMINAL RF, RF (AP-3020) : LAN-S (N-1000) : LAN (TCP/IP) RF (PPT-2740) : RF (,RF ) : (CL-201)
This Document can not be used ithout Samsung's authorization 5. 기구전개도 ASSY-LCD 5-2
This Document can not be used ithout Samsung's authorization 5. 기구 전개도 SYSTEM de I0006 W3007 M3004 M3005 T0103 T3003 W3020 I0001 ec t I0002 ro ni c T0001 G0011 M4000 K- El T0010 I0009 M0001 W3101 B0001
untitled
(Rev. 1.6) 1 1. MagicLAN.......8 1.1............8 1.2........8 1.3 MagicLAN.......10 2.........12 2.1.... 12 2.2 12 2.3....12 3. Windows 98SE/ME/2000/XP......13 3.1.....13 3.2 Windows 98SE.... 13 3.3 Windows
7124SX_Data Sheet
7124SX 10G SFP 1RU 24 1/10GbE 480 Gigabit 3 6 L2 L3 500 L2 L3 1GE 10GE Arista 7124SX 2/3/4 10 Gigabit. 1RU 24 1/10GbE Arista 7124SX 500. RK 10GbE SFP+ GbE SFP Gigabit 10 Gigabit. Arista EOS, ZTP(Zero Touch
SRC PLUS 제어기 MANUAL
,,,, DE FIN E I N T R E A L L O C E N D SU B E N D S U B M O TIO
<C0CCBCBCBFB52DC1A4B4EBBFF82DBCAEBBE7B3EDB9AE2D313939392D382E687770>
i ii iii iv v vi 1 2 3 4 가상대학 시스템의 국내외 현황 조사 가상대학 플랫폼 개발 이상적인 가상대학시스템의 미래상 제안 5 웹-기반 가상대학 시스템 전통적인 교수 방법 시간/공간 제약을 극복한 학습동기 부여 교수의 일방적인 내용전달 교수와 학생간의 상호작용 동료 학생들 간의 상호작용 가상대학 운영 공지사항,강의록 자료실, 메모 질의응답,
Microsoft PowerPoint - L4-7Switch기본교육자료.ppt
L4-7 Switch 기본교육자료 Pumpkin Networks. Inc. http://www.pumpkinnet.co.kr (Tel) 02-3280-9380 (Fax) 02-3280-9382 info@pumpkinnet.co.kr 기본개념 L4/L7 Switch 란? -2- 기본개념 - Switching & Routing Switching & Routing
Integ
HP Integrity HP Chipset Itanium 2(Processor 9100) HP Integrity HP, Itanium. HP Integrity Blade BL860c HP Integrity Blade BL870c HP Integrity rx2660 HP Integrity rx3600 HP Integrity rx6600 2 HP Integrity
Chap06(Interprocess Communication).PDF
Interprocess Communication 2002 2 Hyun-Ju Park Introduction (interprocess communication; IPC) IPC data transfer sharing data event notification resource sharing process control Interprocess Communication
T100MD+
User s Manual 100% ) ( x b a a + 1 RX+ TX+ DTR GND TX+ RX+ DTR GND RX+ TX+ DTR GND DSR RX+ TX+ DTR GND DSR [ DCE TYPE ] [ DCE TYPE ] RS232 Format Baud 1 T100MD+
(JBE Vol. 23, No. 5, September 2018) (Regular Paper) 23 5, (JBE Vol. 23, No. 5, September 2018) ISSN
(Regular Paper) 23 5, 2018 9 (JBE Vol. 23, No. 5, September 2018) https://doi.org/10.5909/jbe.2018.23.5.682 ISSN 2287-9137 (Online) ISSN 1226-7953 (Print) MMT ARQ a), a), a), a), a) ARQ Packet Error Control
<BACEBDBAC5CD20BAEAB7CEBCC52D A2DC3D6C1BE2D312D E6169>
DOOCH PUMP Intelligent pressure boosting system 5Hz BOOSTER PUMP SYSTEM Water supply system Pressure boosting system Irrigation system Water treatment system Industrial plants 두크펌프 www.doochpump.com CONTENTS
USB USB DV25 DV25 REC SRN-475S REC SRN-475S LAN POWER LAN POWER Quick Network Setup Guide xdsl/cable Modem PC DVR 1~3 1.. DVR DVR IP xdsl Cable xdsl C
USB USB DV25 DV25 REC SRN-475S REC SRN-475S LAN POWER LAN POWER Quick Network Setup Guide xdsl/cable Modem PC DVR 1~3 1.. DVR DVR IP xdsl Cable xdsl Cable PC PC Step 1~5. Step, PC, DVR Step 1. Cable Step
歯III-2_VPN-김이한.PDF
VPN 2000. 2. 23 yihan@kt.co.kr kr VPN 2 (1) (Private WAN) ( Virtual Private Networks ) Headquarters Public Network VPN Telecommuter Branch Office Mobile Worker 3 4 VPN VPN ( ) / Outsourcing Outsourcing
PowerPoint Presentation
Korea Tech Conference 2005 년 5 월 14 일, 서울 2005 년 5 월 14 일 CE Linux Forum Korea Tech Conference 1 Parallel port 를이용한가전제품 제어 임효준 LG 전자 imhyo@lge.com 2005 년 5 월 14 일 CE Linux Forum Korea Tech Conference 2
3GPP 3GPP2, FMC UMTS R99 384Kbps Data ATM based MSC Korea-Japan Roaming Pre-Commercial Service (World Cup 2002) UMTS R4 2Mbps Data MSC Server MGW UMTS R5 2Mbps Data IP Multimedia Subsystem SIP Server
<3034B1E2B9DD32302DBAB8B0EDBCAD2D524150412DC0FCC6C4C0DABFF8303528BAB0C3A53420C8A8B3D7C6AEBFF6C5A9292E687770>
2004년 12월 31일 주관연구기관 : 한국전파진흥협회 연구 책임자 : 정 신 교 참여 연구원 : 정 성 진 안 준 오 우 현 주 김 선 영 이 영 란 서 지 영 High Data Rate WPAN 기술 UWB / W1394 PDA 지능형에이젼트기술 방범 전력검침 RF ZigBee 수도검침 802.15.3 Web PAD UWB/무선1394
Á¦4Àå-Á¦2ÀýÀÌÅë±â±â.hwp
2G 2.5G 3G Mobile Radio Telephony * Limited number of channels Analog Cellular Mobitex ETC * Data transmission circuit or packet switched * Non-continuous * Moderate capacity coverage * National coverage
ESP1ºÎ-04
Chapter 04 4.1..,..,.,.,.,. RTOS(Real-Time Operating System)., RTOS.. VxWorks(www.windriver.com), psos(www.windriver.com), VRTX(www.mento. com), QNX(www.qnx.com), OSE(www.ose.com), Nucleus(www.atinudclus.
Microsoft Word _whitepaper_latency_throughput_v1.0.1_for_
Sena Technologies 백서 : Latency/Throughput Test September 11, 2008 Copyright Sena Technologies, Inc 2008 All rights strictly reserved. No part of this document may not be reproduced or distributed without
Windows Embedded Compact 2013 [그림 1]은 Windows CE 로 알려진 Microsoft의 Windows Embedded Compact OS의 history를 보여주고 있다. [표 1] 은 각 Windows CE 버전들의 주요 특징들을 담고
![Windows Embedded Compact 2013 [그림 1]은 Windows CE 로 알려진 Microsoft의 Windows Embedded Compact OS의 history를 보여주고 있다. [표 1] 은 각 Windows CE 버전들의 주요 특징들을 담고](/thumbs/39/20150982.jpg "Windows Embedded Compact 2013 [그림 1]은 Windows CE 로 알려진 Microsoft의 Windows Embedded Compact OS의 history를 보여주고 있다. [표 1] 은 각 Windows CE 버전들의 주요 특징들을 담고")
OT S / SOFTWARE 임베디드 시스템에 최적화된 Windows Embedded Compact 2013 MDS테크놀로지 / ES사업부 SE팀 김재형 부장 / jaei@mdstec.com 또 다른 산업혁명이 도래한 시점에 아직도 자신을 떳떳이 드러내지 못하고 있는 Windows Embedded Compact를 오랫동안 지켜보면서, 필자는 여기서 그와 관련된
歯AG-MX70P한글매뉴얼.PDF
120 V AC, 50/60 Hz : 52 W (with no optional accessories installed), indicates safety information. 70 W (with all optional accessories installed) : : (WxHxD) : : 41 F to 104 F (+ 5 C to + 40 C) Less than
歯V-2_VoIP와지능망-홍융기.PDF
VoIP 1 VoIP VoIP VoIP/IN VoIP/IN 2 Traffic Data Voice Voice Data over Voice Time Data Voice over Data 3 End-user Demands Lower cost voice services MultiMedia services Simplification Carrier Demands Regulatory
istay
` istay Enhanced the guest experience A Smart Hotel Solution What is istay Guest (Proof of Presence). istay Guest (Proof of Presence). QR.. No App, No Login istay. POP(Proof Of Presence) istay /.. 5% /
μ 1. SONET 이란무엇인가?B & B SONET 은동기식광전송망 (Synchronous Optical NETwork) 의줄임말이다. 여기서동기식이라고하는것은신호를보내는데있어서보낼데이터가존재하는지여부에상관없이일정한시간간격을가지고전송하는것을말한다. 이와반대로비동기식전송에서는시간간격과상관없이보낼데이터가있는경우에만보내는것을의미한다. Bellcore(Bell
untitled
BcN 2004.9 sgkwon@empal.com 1.... 1 2. BCN?... 1 2.1.... 1 2.2.... 2 2.3.... 2 3.... 2 3.1.... 2 3.1.1.... 2 3.1.1.1. NGI(Next Generation Internet: )... 2 3.1.1.2. Internet2... 3 3.1.2.... 4 3.1.2.1. eeurope2005...