Reprise of a Challenge to guess Where and What are the buildings in the photos.
Question of government priorities in looking after vulnerable people in Canada and the rigors of life of some imprisoned criminals.
Reprise of a Challenge to guess Where and What are the buildings in the photos.
Question of government priorities in looking after vulnerable people in Canada and the rigors of life of some imprisoned criminals.
Franstalige tekst mbt Dokkum in Franse tijd, Tresoar, Provinciaal Archief Friesland in Franse tijd. Allerlei artikelen, die nadere bestudering behoeven. Nadere info gewenst.
An Energy-Efficient Lut-Log-Bcjr Architecture Using Constant Log Bcjr AlgorithmIJERA Editor
Error correcting codes are used to correct the data from the corrupted signal due to noise and interference. There
are many error correcting codes. Among them turbo codes is considered to be the best because it is very close to
the Shannon theoretical limit. The MAP algorithm is commonly used in the turbo decoder. Among the different
versions of the MAP algorithm Constant log BCJR algorithm have less complexity and good error performance.
The Constant log BCJR algorithm can be easily designed using look up table which reduces the memory
consumption. The proposed Constant log BCJR decoder is designed to decode two blocks of data at a time, this
increases the throughput. The complexity of the decoder is further reduced by the use of the add compare select
(ACS) units and registers. The proposed decoder is simulated using Xilinx ISE and synthesized using Sparten3
FPGA and found out that Constant log BCJR decoder utilized less amount of memory and power than the LUT
log BCJR decoder.
To make the most of your library’s acquisitions budget, you need precise data that reveals your library's subject-matter strengths, gaps, and overlaps. WorldCat Collection Analysis is a Web-based service that provides analysis and comparison of library collections based on holdings information contained in the WorldCat database.
Presented by Christa Burns as the NEBASE Hour on January 9, 2008.
Franstalige tekst mbt Dokkum in Franse tijd, Tresoar, Provinciaal Archief Friesland in Franse tijd. Allerlei artikelen, die nadere bestudering behoeven. Nadere info gewenst.
An Energy-Efficient Lut-Log-Bcjr Architecture Using Constant Log Bcjr AlgorithmIJERA Editor
Error correcting codes are used to correct the data from the corrupted signal due to noise and interference. There
are many error correcting codes. Among them turbo codes is considered to be the best because it is very close to
the Shannon theoretical limit. The MAP algorithm is commonly used in the turbo decoder. Among the different
versions of the MAP algorithm Constant log BCJR algorithm have less complexity and good error performance.
The Constant log BCJR algorithm can be easily designed using look up table which reduces the memory
consumption. The proposed Constant log BCJR decoder is designed to decode two blocks of data at a time, this
increases the throughput. The complexity of the decoder is further reduced by the use of the add compare select
(ACS) units and registers. The proposed decoder is simulated using Xilinx ISE and synthesized using Sparten3
FPGA and found out that Constant log BCJR decoder utilized less amount of memory and power than the LUT
log BCJR decoder.
To make the most of your library’s acquisitions budget, you need precise data that reveals your library's subject-matter strengths, gaps, and overlaps. WorldCat Collection Analysis is a Web-based service that provides analysis and comparison of library collections based on holdings information contained in the WorldCat database.
Presented by Christa Burns as the NEBASE Hour on January 9, 2008.
NEBASE Hour - January 2008 - Who Are You? Evaluate Your Library Holdings with...
임베디드 시스템 –Atm 최종
1. 과목: 임베디스 시스템
담당 교수님: 이민석 교수님
임베디드 시스템 –ATM
(AUTOMATED TELLER MACHINE)
2. ATM이란?
•
ATM 은 패킷 교환 방식 처럼 패킷(셀)을 사용
그 길이가 53 Byte (48byte
데이터 + 5 byte 헤더)로 고정 되어 있음
•
회선 교환 방식 처럼 통신 경로,타임 슬롯 (VC,VP)의 원리를 이용하여 하드
웨어에 의존한 Routing을 수행
•
ATM은 회선 교환과 패킷 교환의 장점만을 흡수한 방식 이라고 할 수 있음
<ATM 교환의 구조>: 셀 길이는 고정적이며 헤더내의 VCI를 분석
고속 하드웨어로 처리
3. 제품 설명
• Card reader: 계정 번호의 식별 부
분, 사용자의 계정 정보를 이해 데
이터 프로세서 전달
Card reader
Display
screen
• Key pad: pin 번호는 올바른 ATM
필요한 금액에 대 한 필요한 거래
를 만듬
• Speaker: 특정 키를 누르면, 스피
커 오디오 피드백을 제공
Receipt printer
Key pad
speaker
• Display screen: 트랜잭션 , 사용
자입력에 대한 현금 인출기의 질
문 , 화면에 표시
• Cash dispenser : ATM 기계의 중
앙 시스템, 돈을 얻음
Cash dispenser
• Receipt printer: 영수증 프린터
4. 왜 소프트웨어로 만드는 것이 좋았을까?
1. 유연한 네트워크
• 컴퓨터 센터의 제어에 의해 통신상대의 지역,장소에 따라 융통적인 네트워
크, 회선모드 서비스와 패킷교환 서비스, 저속 서비스와 고속 서비스
2. 효율적인 정보전송
• 같은 시각에 복수의 통신 채널이 중복되는 경우 대비하여 셀을
일시 축적 하기 위해 버퍼(Buffer)회로를 갖춤->대용량의 전송에
더 많은 통신 채널 확보
3. OAM보수 운용관리
• Operation, Administration and Maintenance
• 네트워크 내 고장,성능을 감시, 이상이 생기면 셀을 다른
경로로 우회 ->각종 방식에 따른 감시를 행함
5. ATM 오류 상황
• 오류
1. 입금한 돈이 나오지 않
을 경우
2. 비밀번호 3번 초과시
오류 번호 변경이 어
렵다.
