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Vinculum-II Scrolling Text Application Using LED Dot Matrix Display
Application Note AN_200 Vinculum-II Scrolling Text Application Using LED dot matrix display Version 1.0 Issue Date: 2012-02-09 This application note provides an example of using the FTDI Vinculum-II (VNC2) to communicate with a USB Flash drive to display text and graphics held on the Flash drive, on a LED dot matrix display. Drivers and source code are also provided (downloadable from the FTDI website) Use of FTDI devices in life support and/or safety applications is entirely at the user’s risk, and the user agrees to defend, indemnify and hold harmless FTDI from any and all damages, claims, suits or expense resulting from such use. Future Technology Devices International Limited (FTDI) Unit 1, 2 Seaward Place, Glasgow G41 1HH, United Kingdom Tel.: +44 (0) 141 429 2777 Fax: + 44 (0) 141 429 2758 Web Site: http://ftdichip.com Copyright © 2012 Future Technology Devices International Limited Application Note AN_200 Vinculum-II Scrolling Text Application Using LED dot matrix display Version 1.0 Document Reference No.: FT_000571 Clearance No.: FTDI# 277 Table of Contents 1 Introduction .................................................................................................................................... 3 1.1 Overview ................................................................................................................................. 3 1.2 Hardware Requirements ......................................................................................................... 4 2 Operation ....................................................................................................................................... -
LPR and LP Technical Brief
LPR and LP Technical Brief Overview Why Use LPR? LPR is one of several methods available for sending files to The lpr and lp commands provide an easy way to send files the Codonics NP-1600 printer. LPR utilizes the TCP/IP net- to the various Logical Devices that exist on the printer. It is working protocol and is most commonly used in UNIX, and the preferred way of sending files over a TCP/IP network to a lesser extent, in MS-DOS/Windows and other environ- since the printer has internal queuing and spooling for all of ments. Most LPR implementations have easy-to-use com- the internal print queues. Each of the internal printer Logical mands for sending files to the printer, but require set up by Devices may be set up on remote systems to allow for print- the System Administrator for correct operation. ing of Scaled, Unscaled, and Bracketing images. The lpr command and the UNIX System V lp command, are used to send image files to the printer. They are easier to use Multiple images can also be assembled on one page by using than FTP and require no user interaction so they may be the Caption, Variable Multiformatting, and Fixed Multifor- used from applications and shell commands. Not all System matting Devices. Getting the desired output can be accom- V LP implementations support the LPR transfer protocol plished very easily by following two general rules: which is used by the printer. Consult your documentation. If you wish to print a single image on a page, you should: The internal operating system on the printer acts as a remote LPD host, allowing various printer formatting functions to 1. -
Laser Printer - Wikipedia, the Free Encyclopedia
Laser printer - Wikipedia, the free encyclopedia http://en. rvi kipedia.org/r,vi ki/Laser_pri nter Laser printer From Wikipedia, the free encyclopedia A laser printer is a common type of computer printer that rapidly produces high quality text and graphics on plain paper. As with digital photocopiers and multifunction printers (MFPs), Iaser printers employ a xerographic printing process but differ from analog photocopiers in that the image is produced by the direct scanning of a laser beam across the printer's photoreceptor. Overview A laser beam projects an image of the page to be printed onto an electrically charged rotating drum coated with selenium. Photoconductivity removes charge from the areas exposed to light. Dry ink (toner) particles are then electrostatically picked up by the drum's charged areas. The drum then prints the image onto paper by direct contact and heat, which fuses the ink to the paper. HP I-aserJet 4200 series printer Laser printers have many significant advantages over other types of printers. Unlike impact printers, laser printer speed can vary widely, and depends on many factors, including the graphic intensity of the job being processed. The fastest models can print over 200 monochrome pages per minute (12,000 pages per hour). The fastest color laser printers can print over 100 pages per minute (6000 pages per hour). Very high-speed laser printers are used for mass mailings of personalized documents, such as credit card or utility bills, and are competing with lithography in some commercial applications. The cost of this technology depends on a combination of factors, including the cost of paper, toner, and infrequent HP LaserJet printer drum replacement, as well as the replacement of other 1200 consumables such as the fuser assembly and transfer assembly. -
Digital Display Circuits This Worksheet and All Related Files Are Licensed Under the Creative Commons Attribution License, Versi
Digital display circuits This worksheet and all related files are licensed under the Creative Commons Attribution License, version 1.0. To view a copy of this license, visit http://creativecommons.org/licenses/by/1.0/, or send a letter to Creative Commons, 559 Nathan Abbott Way, Stanford, California 94305, USA. The terms and conditions of this license allow for free copying, distribution, and/or modification of all licensed works by the general public. Resources and methods for learning about these subjects (list a few here, in preparation for your research): 1 Questions Question 1 What is the purpose of a seven-segment decoder circuit? What is a ”seven-segment” display, and why do we need a decoder circuit to drive it? Research the part number for a typical seven-segment decoder circuit (either CMOS or TTL). file 01417 Question 2 A seven segment decoder is a digital circuit designed to drive a very common type of digital display device: a set of LED (or LCD) segments that render numerals 0 through 9 at the command of a four-bit code: Display driver IC Seven-segment display VDD a a . A b . f b c . g Inputs B d . C e . f . D g . e c d The behavior of the display driver IC may be represented by a truth table with seven outputs: one for each segment of the seven-segment display (a through g). In the following table, a ”1” output represents an active display segment, while a ”0” output represents an inactive segment: D C B A a b c d e f g Display 0 0 0 0 1 1 1 1 1 1 0 ”0” 0 0 0 1 0 1 1 0 0 0 0 ”1” 0 0 1 0 1 1 0 1 1 0 1 ”2” 0 0 1 1 1 1 1 1 0 0 1 ”3” 0 1 0 0 0 1 1 0 0 1 1 ”4” 0 1 0 1 1 0 1 1 0 1 1 ”5” 0 1 1 0 1 0 1 1 1 1 1 ”6” 0 1 1 1 1 1 1 0 0 0 0 ”7” 1 0 0 0 1 1 1 1 1 1 1 ”8” 1 0 0 1 1 1 1 1 0 1 1 ”9” Write the unsimplified SOP or POS expressions (choose the most appropriate form) for outputs a, b, c, and e. -
A Comparative Study of Different Printed Documents to Estimate the Type of Printer Used
Journal of Forensic Research and Crime Studies Research Open Access A Comparative Study of Different Printed Documents to Estimate the Type of Printer Used Noronha SJ1, Basheer SZ1, Vijay MN1, Alnajjar A2, Sharma BK3,* and Singh N3 1Department of Forensic Science, Amity University Dubai, Dubai International Academic City, Dubai, UAE 2Former Head of Questioned Documents Unit, Department of Forensic Science and Criminology, Dubai Police, UAE 3Assistant Professor, Department of Forensic Science, Amity University Dubai, Dubai International Academic City, Dubai, UAE *Corresponding author: Sharma BK, Assistant Professor, Department of Forensic Science, Amity University Dubai, Dubai International Academic City, Dubai, UAE, Tel: 9714 4554 900; Fax: 9714 4356 810; E-mail: bsharma@amit- yuniversity.ae Received Date: March 28, 2017 Accepted Date: April 26, 2017 Published Date: April 28, 2017 Citation: Noronha SJ (2017) A Comparative Study of Different Printed Documents to Estimate the Type of Printer Used. J Forensic Res Crime Stud 1: 1-7. Abstract Printer examination in questioned document examination has become a necessity in the present time due to the progressive use of printers in the creation of documents as compared to that of handwritten documents and also the counterfeiting of documents printed by different printers. The present study is based upon the examination and analysis of different types of printed documents from various types of printers to distinguish and identify them for the purpose of forensic examination and to aid the questioned document ex- aminer during the forensic analysis of cases involving such printed documents. Each printer has a unique fashion of printing documents and the aim of this research is to identify this fashion by examining the printed documents. -
Symposium Digest Articles Listed Chronologically 1963-1988
Preliminary Table of Contents for SID Symposium Digests 1963-1988 ( author company affiliations not listed) Notes: 1 The index covers full papers and keynote speeches for SID Symposia from 1963 through 1988; panel sessions, seminars and luncheon speakers are not listed 2 Authors' company affiliations are not shown (to be added) 3 Lead author is designated with asterisk ( * ) 4 The first ten (10) digests were designated by number as follows 5 The first ten (10 Symposia were identified by numbers, as follows: 2/1963 -#1; 9/63 - #2; 5/64-#3; 9/64 - #4; 2/65 - #5; 9/65 - #6; 10/66 - #7; 5/67 - #8; 5/68 - #9; 5/69 - #10 Session # Year Page Title Author(s) 1963-1 1 User Requirements for Display Debons, Col, Anthony * 1963-1 13 Scan Conversion and Bright Display Porter, Richard * 1963-1 21 Multicolor Projection System Smith, Fred E.* 1963-1 31 Advanced Display Techniques through the Charactron Redman, James H.* 1963-1 53 Light Valve Display Albanese, Augustine * 1963-1 63 Colordata, A Photographic Large Screen Display system Baron, Peter C.* 1963-1 77 Human Performance Engineering and Information Display Silvern, Leonard * 1963-1 83 Multiple Projection Techniques Klein, R.C.* 1963-1 93 Photochromic Dynamic Display Hines, Logan J.* 1963-1 99 Datachrome Display System Parker, Philip A.* 1963-1 117 High Ambient Light Display Systems Miller, Wendell S.* 1963-1 127 Electroluminescent Displays Hallett, Joseph L.* 1963-1 139 Pseudo 3-D Display Perdue, Joseph L.* 1963-1 155 Aims and Purposes of the S.I.D. Vlahos, Petro * 1963-2 1 Iinformation Systems, -
Organic Light-Emitting Diode (Oled) Display Panel, Oled Display Device and Method for Driving the Same
(19) TZZ¥__T (11) EP 3 147 894 A1 (12) EUROPEAN PATENT APPLICATION (43) Date of publication: (51) Int Cl.: 29.03.2017 Bulletin 2017/13 G09G 3/3225 (2016.01) G09G 3/3233 (2016.01) (21) Application number: 16190336.4 (22) Date of filing: 23.09.2016 (84) Designated Contracting States: (72) Inventors: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB • NA, Se-Hwan GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO 10895 Gyeonggi-do (KR) PL PT RO RS SE SI SK SM TR • LEE, Jae-Young Designated Extension States: 07350 Seoul (KR) BA ME • KIM, Mi-Jung Designated Validation States: 06923 Seoul (KR) MA MD (74) Representative: Viering, Jentschura & Partner (30) Priority: 25.09.2015 KR 20150136459 mbB Patent- und Rechtsanwälte (71) Applicant: LG Display Co., Ltd. Am Brauhaus 8 Yeongdeungpo-gu 01099 Dresden (DE) Seoul 07336 (KR) (54) ORGANIC LIGHT-EMITTING DIODE (OLED) DISPLAY PANEL, OLED DISPLAY DEVICE AND METHOD FOR DRIVING THE SAME (57) Disclosed herein are an OLED display panel (410) further including a switching transistor (T-SW) for controlling application of supply voltage (VDD_EL) in the initializing interval of a pixel (P), an OLED display device including the same, and a method for driving the same. The OLED display panel (410) avoids a short-circuit be- tween supply voltage VDD_EL and reference voltage Vref to thereby reduce initialization voltage applied to the gate terminal of the driving transistor T_dr. The OLED display device can achieve various effects such as im- proved response characteristics of pixels by reducing de- viation in the initial voltage used in sampling. -
Virtual Reality and Augmented Reality a Survey from Scania’S Perspective
EXAMENSARBETE INOM MASKINTEKNIK, AVANCERAD NIVÅ, 30 HP STOCKHOLM, SVERIGE 2019 Virtual Reality and Augmented Reality A Survey from Scania’s Perspective KARL INGERSTAM KTH SKOLAN FÖR INDUSTRIELL TEKNIK OCH MANAGEMENT Virtual Reality and Augmented Reality A Survey from Scania’s Perspective Karl Ingerstam 2019 Master of Science Thesis TPRMM 2019 KTH – Industrial Engineering and Management Production Engineering SE-100 44 Stockholm Abstract Virtual reality and augmented reality are technological fields that have developed and expanded at a great pace the last few years. A virtual reality is a digitally created environment where computer- generated elements are displayed to a user via different interfaces for the respective senses. Video is used for displaying images, creating a realistic environment, while audio is played to stimulate hearing and other sorts of feedback is used to stimulate the sense of touch in particular. Augmented reality is a sub-category of virtual reality where the user sees the real surroundings, but computer-generated imagery is displayed on top of objects in the environment. This type of technology brings a lot of new possibilities and potential use cases in all sorts of areas, ranging from personal entertainment, communication and education to medicine and heavy industry. Scania is a global manufacturer of heavy trucks and buses, and provider of related services, based in Sweden. By studying Scania’s different departments and surveying the fields of virtual reality and augmented reality, the aim of this thesis is to identify situations and use cases where there is potential for Scania to implement virtual reality and augmented reality technology. This thesis also studies what obstacles implementation of these technologies bring. -
What Is LCD (Liquid Crystal Display)?
UNIT - IV DISPLAY DEVICES SPH 1102- PHYSICS OF ELECTRON DEVICES TOPICS COVERED: Introduction - what is display devices? - Luminescence - Electroluminescence Active Display Devices - CRT – Cathode Ray Tube - LED – Light Emitting Diode Passive Display Devices - LCD – Liquid Crystal Display - Plasma Display - Dynamic Scattering Display - Touch screen INTRODUCTION Definition: - A display device is an output device for presentation of information in visual or tactile form (the latter used for example in tactile electronic displays for blind people). When the input information is supplied as an electrical signal, the display is called an electronic display. - Display devices are used for the visual presentation of information. Types of display devices: Electronic display devices based on various principles were developed. - Active display devices are based on luminescence. - Passive display devices reflect or modulate light LUMINESCENCE Definition: Luminescence is the general term used to describe the emission of electromagnetic radiation from a substance due to a non-thermal process. Luminescence occurs from a solid when it is supplied with some form of energy. Types of Luminescence: - Photoluminescence arises as a result of absorption of photons. - Fluorescence persists for a short lifetime of the transition between the two energy levels. - Phosphorescence persists for much longer time (more than 10-8 s). -Cathodoluminescence - Excitation of electrons by bombardment with a beam of electrons. -Electroluminescence - Excitation of electrons by application of an electric field. - Thermoluminescence – Excitation of electrons by the application of High temperature. - Chemiluminescence - Excitation of electrons due to chemical reaction. Active Display Devices Electronic visual displays present visual information according to the electrical input signal (analog or digital) by emitting light, they are called active displays. -
A Low Cost Holographic Display
A Low Cost Holographic Display Mark Green University of Ontario Institute of Technology Figure 1: (a) Prototype holographic display (left), (b) Image of wireframe truncated pyramid as displayed in the prototype display Abstract 1 Introduction Holography can be viewed as the ultimate display technology since In many ways holography is the ultimate display device capturing it correctly duplicates all the cues used by our visual system. In the all aspects of the light energy that is reflected or emitted by the graphics community this technology has largely been ignored in the environment. This includes all the cues that our visual system past due to its computational cost, but this is changing as more expects. This differs from other display technologies, such as head powerful parallel processors are becoming available. One of the mounted displays (HMDs) that present conflicting cues to the main challenges in this area is the lack of a commercially available viewer. In the case of an HMD the images are displayed on a fixed display device at a reasonable cost that can be used for testing and plane producing focus and accommodation cues suggesting that all evaluating algorithms. This paper describes a low cost holographic the objects are at the same depth, while the stereo and projection display device that can easily be constructed from standard parts as cues suggest they are at different depths. This causes fatigue and a solution to this problem. This paper discusses the design other visual problems. Light field displays are a step forward, but considerations for such a device, its construction and an overview only provide correct 3D cues over a limited depth range of how holograms can be computed for it. -
Technical Summaries
TECHNICAL SUMMARIES www.electronicimaging.org Conferences and Courses 8–12 February 2015 Location Hilton San Francisco, Union Square San Francisco, California, USA www.electronicimaging.org • TEL: +1 703 642 9090 • [email protected] 1 2015 Symposium Chair Sheila S. Hemami Contents Northeastern Univ. (USA) 9391: Stereoscopic Displays and Applications XXVI ............................... 3 9392: The Engineering Reality of Virtual Reality 2015............................. 25 9393: Three-Dimensional Image Processing, Measurement (3DIPM), and Applications 2015 ...................................................... 33 2015 Symposium 9394: Human Vision and Electronic Imaging XX .................................45 Co-Chair 9395: Color Imaging XX: Displaying, Processing, Hardcopy, and Applications ....... 72 Choon-Woo Kim 9396: Image Quality and System Performance XII................................89 Inha Univ. 9397: Visualization and Data Analysis 2015.......................................111 (Republic of Korea) 9398: Measuring, Modeling, and Reproducing Material Appearance 2015 ...........117 9399: Image Processing: Algorithms and Systems XIII ............................139 9400: Real-Time Image and Video Processing 2015...............................161 9401: Computational Imaging XIII..............................................174 2015 Short Course 9402: Document Recognition and Retrieval XXII .................................184 Chair 9403: Image Sensors and Imaging Systems 2015.................................189 Majid Rabbani 9404: Digital -
2. Input & Output Devices
2. Input & Output Devices Malcolm Howe [Company name] 5/17/2020 Table of Contents Table of Figures ........................................................................................ Error! Bookmark not defined. Input and Output Devices - Syllabus ....................................................................................................... 3 Input - Keyboards ................................................................................................................................ 4 Alphanumeric Keyboard ................................................................................................................. 4 Numeric Keypad .............................................................................................................................. 4 PIN Pad ............................................................................................................................................ 4 Input - Pointing Devices ...................................................................................................................... 5 Mouse ............................................................................................................................................. 5 Touchpad / Trackpad ...................................................................................................................... 5 Trackball / Tracker Ball .................................................................................................................... 5 Touch Screen ..................................................................................................................................