Passmore CURATEcamp 2015
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This document discusses quality control (QC) tools for audio CDs, ranging in price from $0 to over $50,000. It mentions several commercial tools costing between $3,000 and $8,000 from companies like Clover Systems and between $30,000 and $50,000 from companies like Audio Development and DaTARIUS. It also lists some free and inexpensive options under $25, like Plextools PlexUtilities, QPxTools/Qscan, and OptiDrive Control. The document cautions that while free downloadable testers using a computer's CD/DVD drive can measure disc errors, they are generally unsuitable for archival purposes due to software and drive limitations.
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PCM (Pulse Code Modulation)
Coder merubah sinyal analog menjadi biner dengan menggunakan dua blok utama, yaitu Analog to Digital Converter untuk mengubah sinyal analog menjadi biner dan Parallel to Serial Converter untuk mengubah aliran data biner menjadi serial. Receiver PCM menggunakan regenerative repeater untuk menguatkan dan membersihkan distorsi sinyal dengan meregenerasi deretan kode yang benar secara non-linear. Proses decoding kembali mengubah sinyal biner serial menjadi paralel dan ke
Dpcm ( Differential Pulse Code Modulation )
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Differential pulse code modulation
Differential pulse code modulation (DPCM) is a technique that encodes analog signals digitally by sampling the signal, predicting the next sample value based on previous samples, quantizing the difference between the actual and predicted values, and transmitting the quantized difference. DPCM reduces the required transmission bandwidth compared to standard PCM by exploiting the fact that differences between successive samples are typically smaller than the sample amplitudes themselves. It works by quantizing and transmitting the differences between actual and predicted sample values rather than directly quantizing the sample amplitudes.
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Pulse code modulation
Pulse code modulation (PCM) involves sampling an analog signal at regular intervals, quantizing the sample values, and encoding the samples as digital code. The analog voice signal is sampled 8000 times per second, with each sample represented by an 8-bit binary number. This results in a digital data rate of 64,000 bits per second to represent the original voice signal. Quantization assigns the sample values to discrete levels, introducing quantization error between the original and encoded signals.
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It is a digital representation of an analog signal that takes samples of the amplitude of the analog signal at regular intervals. The sampled analog data is changed to, and then represented by, binary data.
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Pulse code modulation (PCM) is a digital representation of an analog signal where the signal is sampled regularly at discrete intervals and each sample is converted to a binary word. This allows analog signals like audio and video to be transmitted over digital networks or stored digitally. PCM works by sampling the analog signal, quantizing the sample amplitude to the nearest of several levels, and encoding each level as a binary number consisting of a certain number of bits depending on the number of quantization levels used.
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Pulse modulation
Pulse modulation techniques can encode an analog signal for transmission. This document discusses several techniques including:
- Pulse-amplitude modulation (PAM) which varies pulse amplitudes based on sample values of the message signal.
- Pulse code modulation (PCM) which assigns a binary code to each analog sample. PCM is commonly used in digital communications systems.
- Delta modulation which transmits one bit per sample indicating if the current sample is more positive or negative than the previous. It requires higher sampling rates than PCM for equal quality.
pulse modulation
This document summarizes various pulse modulation techniques including:
- Pulse-amplitude modulation (PAM) where the carrier amplitude changes with the message signal amplitude.
- Pulse-duration modulation (PDM) where the carrier width changes with the message signal amplitude.
- Pulse-position modulation (PPM) where the carrier position changes with the message signal amplitude.
- Digital pulse modulation techniques like pulse code modulation (PCM) and differential PCM (DPCM) are also discussed. Advantages and disadvantages of each technique are provided.
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The document discusses JTAG and boundary scan testing standards. It describes how JTAG allows complete control and observation of boundary pins via software to enable in-circuit testing without bed-of-nails equipment. Boundary scan Flash programming has advantages over other techniques like limited impact on design and ability to program in field. However, programming time is affected by factors like scan operations, path length, clock frequency, data amount, and burn time. The document also discusses AC97 audio codec standards and the JPEG image compression standard.
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2) In his HDCP key project, Adam learned Verilog and programming FPGAs while figuring out how to correctly write three copies of an HDCP key to memory.
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Watch the video: https://youtu.be/wnGBW31yhLM
Learn more: https://www.intel.com/content/www/us/en/high-performance-computing/daos-high-performance-storage-brief.html
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A user-friendly MATLAB GUI, named DIPeth, facilitates the system's control.ROLE OF DIGITAL SIMULATION IN CONFIGURING NETWORK PARAMETERS
Selecting the right Ethernet standard and configuring all the network devices in the embedded systems accurately is an extremely hard and rigorous job. The configuration depends on the topology, workloads of the connected devices, processing overhead at the switches, and the external interfaces. Network calculus, mathematical models and analytical techniques provide worst case execution time (WCET), but their probability of activity is extremely wide. This leads to overdesign which leads to higher costs, power consumption, weight, and size. Simulating the network is the best way to measure the throughput of the entire system. Digital system simulation provides better latency and throughput accuracy, but the accuracy is still limited because it does not consider the latency associated with the network OS, cybersecurity processing and scheduling. In many cases, these factors can reduce the throughput by 20-40%.
In this paper, we will present our research on modeling the entire Ethernet network, including the workloads, network flow control, scheduling, switch hardware, and software. To substantially increase the coverage and compare topologies, we have developed a set of benchmarks that provides coverage for different combination of deterministic, rate-constrained, and best effort traffic. During the presentation, we will cover the benchmarks, the list of attributes required to accurately model the traffic, nodes, switches, and the scheduler settings. We will also look at the statistics and reports required to make the configuration decision. In addition, we will discuss how the model must be constructed to study the impact of future requirements, failures, network intrusions, and security detection schemes.
Key Takeaways:
1. Learn how to efficiently use network simulation to design Ethernet systems
2. Develop a reusable benchmark and associated statistics to test different configurations
3. The role and impact of the CDT slots, guard band, send slope, idle slope, shuffle scheduling, flow control and virtual channels
Troubleshooting & Tools
The document discusses various computer hardware troubleshooting tools, including in-circuit emulators, logic state/timing analyzers, digital multimeters, and cathode-ray oscilloscopes. It provides details on what each tool is used for and how it functions. In-circuit emulators are used to debug software on embedded systems by allowing observation and alteration of the system. Logic analyzers capture and display digital signals and can trigger on patterns. Digital multimeters combine voltage, current and resistance measurements. Cathode-ray oscilloscopes provide time and amplitude measurements of voltage signals.
1.semtech ds-gaseous portableemissionsmeasurementsystem–brochure
The SEMTECH-DS is an on-board emissions analyzer that measures CO, CO2, O2, NO, NO2 and THC from spark ignition and compression ignition engines. It ensures compliance with EPA standards and works with regulatory agencies and manufacturers. The system comes with software to control the analyzer and perform emissions calculations. It has features like heated sampling lines and sample conditioning to minimize contamination. Optional accessories allow interfacing with vehicles and collecting auxiliary data.
Dataplane networking acceleration with OpenDataplane / Максим Уваров (Linaro)
HighLoad++ 2017
Зал «Москва», 7 ноября, 13:00
Тезисы:
http://www.highload.ru/2017/abstracts/2909.html
OpenDataPlane (ODP, https://www.opendataplane.org) является open-source-разработкой API для сетевых data plane-приложений, представляющий абстракцию между сетевым чипом и приложением. Сейчас вендоры, такие как TI, Freescale, Cavium, выпускают SDK с поддержкой ODP на своих микросхемах SoC. Если проводить аналогию с графическим стеком, то ODP можно сравнить с OpenGL API, но только в области сетевого программирования.
...
Embedded system design process
This document discusses embedded systems and provides information on:
- The components of an embedded system including a processor, peripherals, and software.
- Major application areas such as consumer electronics, automation, and networking.
- The embedded system design process including determining requirements, designing architecture, selecting hardware and software, and testing.
- Recent trends in embedded systems including reduced size, cost and power consumption.
Soft Error Study of ARM SoC at 28 Nanometers
Abstract— During the past year Xilinx, for the first time ever, set out to quantify the soft error rate of a multi-core microprocessor. This work extends on Xilinx’s 10+ years of heritage in FPGA radiation testing. Built on the 28 nanometer technology node, Xilinx’s ZynqTM family of devices integrate a processor subsystem with programmable logic. The processor subsystem includes two 32 bit ARM CortexTM-A9 CPU’s, two NEONTM floating point units, two SIMD processing units, an L1 and L2 cache, on chip SRAM memory and various peripherals. The programmable logic is directly connected with the processing subsystem via ARM’s AMBATM 4 AXI interface. This programmable logic is based on the 7 Series FPGA fabric, consisting of 6-input LUTs and DFFs along with Block RAM, DSP slices, multi-gigabit transceivers, and other blocks. Tests were performed using a proton beam to analyze the soft error susceptibility of the new device. Proton beam testing was deemed acceptable since previous neutron beam and proton beam testing had shown virtually identical cross-sections for 7 Series programmable logic. The results are promising and yield a solid baseline for a typical embedded application targeting any of the Zynq SoC devices. As a foray into processor testing, this Zynq work has laid a solid foundation for future Xilinx SoC test campaigns.
Austin Lesea, Wojciech Koszek, Glenn Steiner, Gary Swift, and Dagan White Xilinx, Inc.
Paper: SELSE 2014 @ Stanford University (PDF, 456KB), 2014
Slides: (PDF, 933KB), 2014
Automated hardware testing using python
Design a ATE using python software used to test the Embedded or electronics boards testing and report using opensource tools at lowcost..
1570514051.pptx
This document proposes a software/hardware co-design framework called an SDSoC (system on a chip) to enable real-time computer vision processing at the edge for applications in the "Internet of Eyes". The framework uses a Xilinx Zynq chip containing an ARM processor and programmable logic. A prototype application for variable speed limit control on a motorway splits processing between the processor and programmable logic. Evaluation results found the framework can provide real-time processing with response times under 50ms while keeping power consumption under 2.5 watts.
MaxEye DAB/DAB+/DMB Receiver Test Solution - Application Note
This document describes the measurement configurations and procedures for DAB receiver testing using National Instruments PXI Vector Signal Generators and MaxEye DAB/DABPlus/T-DMB Signal Generation software.
Python on Rails - Victory Levy
Vic Levy of Princeton Consultants presented on COSMA, an agent developed for CSX locomotives to monitor and manage Positive Train Control (PTC) systems. COSMA checks PTC equipment, reports conditions, corrects problems, updates software, and monitors connectivity. It was programmed in Python to operate in locomotive environments with limited resources and connectivity. COSMA was tested on lab and test track environments to ensure it does not interfere with safety systems. Princeton Consultants is an IT and management consulting firm that has successfully delivered over 1,500 projects for innovative companies since 1980.
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加急办理华威大学毕业证硕士文凭证书原版一模一样
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本公司拥有海外各大学样板无数，能完美还原海外各大学 Bachelor Diploma degree, Master Degree Diploma
1:1完美还原海外各大学毕业材料上的工艺：水印，阴影底纹，钢印LOGO烫金烫银，LOGO烫金烫银复合重叠。文字图案浮雕、激光镭射、紫外荧光、温感、复印防伪等防伪工艺。材料咨询办理、认证咨询办理请加学历顾问Q/微741003700
留信网认证的作用:
1:该专业认证可证明留学生真实身份
2:同时对留学生所学专业登记给予评定
3:国家专业人才认证中心颁发入库证书
4:这个认证书并且可以归档倒地方
5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息
6:个人职称评审加20分
7:个人信誉贷款加10分
8:在国家人才网主办的国家网络招聘大会中纳入资料，供国家高端企业选择人才
Awaken new depths - World Ocean Day 2024, June 8th.
UN WOD 2024 will take us on a journey of discovery through the ocean's vastness, tapping into the wisdom and expertise of global policy-makers, scientists, managers, thought leaders, and artists to awaken new depths of understanding, compassion, collaboration and commitment for the ocean and all it sustains. The program will expand our perspectives and appreciation for our blue planet, build new foundations for our relationship to the ocean, and ignite a wave of action toward necessary change.
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本公司拥有海外各大学样板无数，能完美还原。
1:1完美还原海外各大学毕业材料上的工艺：水印，阴影底纹，钢印LOGO烫金烫银，LOGO烫金烫银复合重叠。文字图案浮雕、激光镭射、紫外荧光、温感、复印防伪等防伪工艺。材料咨询办理、认证咨询办理请加学历顾问Q/微741003700
【主营项目】
一.毕业证【q微741003700】成绩单、使馆认证、教育部认证、雅思托福成绩单、学生卡等！
二.真实使馆公证(即留学回国人员证明,不成功不收费)
三.真实教育部学历学位认证（教育部存档！教育部留服网站永久可查）
四.办理各国各大学文凭(一对一专业服务,可全程监控跟踪进度)
如果您处于以下几种情况：
◇在校期间，因各种原因未能顺利毕业……拿不到官方毕业证【q/微741003700】
◇面对父母的压力，希望尽快拿到；
◇不清楚认证流程以及材料该如何准备；
◇回国时间很长，忘记办理；
◇回国马上就要找工作，办给用人单位看；
◇企事业单位必须要求办理的
◇需要报考公务员、购买免税车、落转户口
◇申请留学生创业基金
留信网认证的作用:
1:该专业认证可证明留学生真实身份
2:同时对留学生所学专业登记给予评定
3:国家专业人才认证中心颁发入库证书
4:这个认证书并且可以归档倒地方
5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息
6:个人职称评审加20分
7:个人信誉贷款加10分
8:在国家人才网主办的国家网络招聘大会中纳入资料，供国家高端企业选择人才
2024: The FAR - Federal Acquisition Regulations, Part 39
Jennifer Schaus and Associates hosts a complimentary webinar series on The FAR in 2024. Join the webinars on Wednesdays and Fridays at noon, eastern.
Recordings are on YouTube and the company website.
https://www.youtube.com/@jenniferschaus/videos
Transit-Oriented Development Study Working Group Meeting
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本公司拥有海外各大学样板无数，能完美还原。
1:1完美还原海外各大学毕业材料上的工艺：水印，阴影底纹，钢印LOGO烫金烫银，LOGO烫金烫银复合重叠。文字图案浮雕、激光镭射、紫外荧光、温感、复印防伪等防伪工艺。材料咨询办理、认证咨询办理请加学历顾问Q/微741003700
【主营项目】
一.毕业证【q微741003700】成绩单、使馆认证、教育部认证、雅思托福成绩单、学生卡等！
二.真实使馆公证(即留学回国人员证明,不成功不收费)
三.真实教育部学历学位认证（教育部存档！教育部留服网站永久可查）
四.办理各国各大学文凭(一对一专业服务,可全程监控跟踪进度)
如果您处于以下几种情况：
◇在校期间，因各种原因未能顺利毕业……拿不到官方毕业证【q/微741003700】
◇面对父母的压力，希望尽快拿到；
◇不清楚认证流程以及材料该如何准备；
◇回国时间很长，忘记办理；
◇回国马上就要找工作，办给用人单位看；
◇企事业单位必须要求办理的
◇需要报考公务员、购买免税车、落转户口
◇申请留学生创业基金
留信网认证的作用:
1:该专业认证可证明留学生真实身份
2:同时对留学生所学专业登记给予评定
3:国家专业人才认证中心颁发入库证书
4:这个认证书并且可以归档倒地方
5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息
6:个人职称评审加20分
7:个人信誉贷款加10分
8:在国家人才网主办的国家网络招聘大会中纳入资料，供国家高端企业选择人才
原版制作(英国Southampton毕业证书)南安普顿大学毕业证录取通知书一模一样
学校原件一模一样【微信：741003700 】《(英国Southampton毕业证书)南安普顿大学毕业证》【微信：741003700 】学位证，留信认证（真实可查，永久存档）原件一模一样纸张工艺/offer、雅思、外壳等材料/诚信可靠,可直接看成品样本，帮您解决无法毕业带来的各种难题！外壳，原版制作，诚信可靠，可直接看成品样本。行业标杆！精益求精，诚心合作，真诚制作！多年品质 ,按需精细制作，24小时接单,全套进口原装设备。十五年致力于帮助留学生解决难题，包您满意。
本公司拥有海外各大学样板无数，能完美还原。
1:1完美还原海外各大学毕业材料上的工艺：水印，阴影底纹，钢印LOGO烫金烫银，LOGO烫金烫银复合重叠。文字图案浮雕、激光镭射、紫外荧光、温感、复印防伪等防伪工艺。材料咨询办理、认证咨询办理请加学历顾问Q/微741003700
【主营项目】
一.毕业证【q微741003700】成绩单、使馆认证、教育部认证、雅思托福成绩单、学生卡等！
二.真实使馆公证(即留学回国人员证明,不成功不收费)
三.真实教育部学历学位认证（教育部存档！教育部留服网站永久可查）
四.办理各国各大学文凭(一对一专业服务,可全程监控跟踪进度)
如果您处于以下几种情况：
◇在校期间，因各种原因未能顺利毕业……拿不到官方毕业证【q/微741003700】
◇面对父母的压力，希望尽快拿到；
◇不清楚认证流程以及材料该如何准备；
◇回国时间很长，忘记办理；
◇回国马上就要找工作，办给用人单位看；
◇企事业单位必须要求办理的
◇需要报考公务员、购买免税车、落转户口
◇申请留学生创业基金
留信网认证的作用:
1:该专业认证可证明留学生真实身份
2:同时对留学生所学专业登记给予评定
3:国家专业人才认证中心颁发入库证书
4:这个认证书并且可以归档倒地方
5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息
6:个人职称评审加20分
7:个人信誉贷款加10分
8:在国家人才网主办的国家网络招聘大会中纳入资料，供国家高端企业选择人才
原版制作(DPU毕业证书)德保罗大学毕业证Offer一模一样
学校原件一模一样【微信：741003700 】《(DPU毕业证书)德保罗大学毕业证》【微信：741003700 】学位证，留信认证（真实可查，永久存档）原件一模一样纸张工艺/offer、雅思、外壳等材料/诚信可靠,可直接看成品样本，帮您解决无法毕业带来的各种难题！外壳，原版制作，诚信可靠，可直接看成品样本。行业标杆！精益求精，诚心合作，真诚制作！多年品质 ,按需精细制作，24小时接单,全套进口原装设备。十五年致力于帮助留学生解决难题，包您满意。
本公司拥有海外各大学样板无数，能完美还原。
1:1完美还原海外各大学毕业材料上的工艺：水印，阴影底纹，钢印LOGO烫金烫银，LOGO烫金烫银复合重叠。文字图案浮雕、激光镭射、紫外荧光、温感、复印防伪等防伪工艺。材料咨询办理、认证咨询办理请加学历顾问Q/微741003700
【主营项目】
一.毕业证【q微741003700】成绩单、使馆认证、教育部认证、雅思托福成绩单、学生卡等！
二.真实使馆公证(即留学回国人员证明,不成功不收费)
三.真实教育部学历学位认证（教育部存档！教育部留服网站永久可查）
四.办理各国各大学文凭(一对一专业服务,可全程监控跟踪进度)
如果您处于以下几种情况：
◇在校期间，因各种原因未能顺利毕业……拿不到官方毕业证【q/微741003700】
◇面对父母的压力，希望尽快拿到；
◇不清楚认证流程以及材料该如何准备；
◇回国时间很长，忘记办理；
◇回国马上就要找工作，办给用人单位看；
◇企事业单位必须要求办理的
◇需要报考公务员、购买免税车、落转户口
◇申请留学生创业基金
留信网认证的作用:
1:该专业认证可证明留学生真实身份
2:同时对留学生所学专业登记给予评定
3:国家专业人才认证中心颁发入库证书
4:这个认证书并且可以归档倒地方
5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息
6:个人职称评审加20分
7:个人信誉贷款加10分
8:在国家人才网主办的国家网络招聘大会中纳入资料，供国家高端企业选择人才
PAS PSDF Mop Up Workshop Presentation 2024 .pptx
This is the slide deck of what PAS learnt supporting councils awarded Planning Skills Delivery Funds
2024: The FAR - Federal Acquisition Regulations, Part 38
Jennifer Schaus and Associates hosts a complimentary webinar series on The FAR in 2024. Join the webinars on Wednesdays and Fridays at noon, eastern.
Recordings are on YouTube and the company website.
https://www.youtube.com/@jenniferschaus/videos
A Guide to AI for Smarter Nonprofits - Dr. Cori Faklaris, UNC Charlotte
A Guide to AI for Smarter Nonprofits - Dr. Cori Faklaris, UNC CharlotteUniversity of North Carolina at Charlotte
Working with data is a challenge for many organizations. Nonprofits in particular may need to collect and analyze sensitive, incomplete, and/or biased historical data about people. In this talk, Dr. Cori Faklaris of UNC Charlotte provides an overview of current AI capabilities and weaknesses to consider when integrating current AI technologies into the data workflow. The talk is organized around three takeaways: (1) For better or sometimes worse, AI provides you with “infinite interns.” (2) Give people permission & guardrails to learn what works with these “interns” and what doesn’t. (3) Create a roadmap for adding in more AI to assist nonprofit work, along with strategies for bias mitigation.
United Nations World Oceans Day 2024; June 8th " Awaken new dephts".
The program will expand our perspectives and appreciation for our blue planet, build new foundations for our relationship to the ocean, and ignite a wave of action toward necessary change.
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Passmore CURATEcamp 2015
- 1. QC Tools for Audio CDs
- 2. Pulse-code modulation Figure 3. The pulse-code modulation stream to digital signal to analog signal chain. An Introduction to Optical Media Preservation, http://journal.code4lib.org/articles/9581
- 3. QC Tools for CD-DA $30,000 - $50,000 ● Audio Development ● DaTARIUS ● Expert Magnetic Corporation $3,000 - $8,000 ● Clover Systems $0 - $25.00 ● Plextools PlexUtilities ● QPxTools/Qscan ● OptiDrive Control ● Nero ● PXScan/PXView
- 4. IASA TC-04 Fig 1. Section 8.1: Accumulated errors in a CD-R over time 8.1.11.6.1 There are a number of downloadable testers available online which use a computer’s inbuilt CD/DVD drive to measure error in written CD and DVDs. However, due to the limitations of the software and inaccuracy of the drives, most, if not all, are unsuitable for archival purposes.
- 5. Plextor The results of the tests may differ from system to system, and should always be viewed in context, like test environment, used hardware, software, media, etc.
- 6. QPxTool/Qscan ● open source ● compatible with many drives ● command line capability ● unlock Plextor features (firmware hack)