技術資料ライブラリー


8Kデータレートカリキュレーター

8Kデータレートカリキュレーターは、システム設計、設置およびセットアップの際に役立つツールです。希望する解像度、リフレッシュレート、カラー深度およびカラーサンプリングを選択するだけで、ケーブルやスケーラー、システムその他のコンポーネントが対応しなければならないデータレートを算出します。詳細モードでは、SMPTE/CTA/DCIおよびVESAの解像度を選択可能、またタイミングパラメーターとアスペクト比を図と一覧表形式で表示します。標準規格、リフレッシュレート、解像度およびカラー深度を指定して、タイミングパラメーター、ビデオデータレートおよびアスペクト比を図で表示し印刷することが可能です。 カリキュレーターを起動する  詳細

Eyes on the Roads

The Borough Councils of Greater London have a duty to maintain safe roadways that will support efficient transportation and the economic well-being of the metropolitan area. Residents of Greater London are all too familiar with seeing road work projects that extend longer than their timeframe expectations... (ログインが必要です: ) 詳細

Avoiding Common Pitfalls Integrating AV Products onto IP Networks

Advancements in audiovisual technology have brought changes to the ways audio, video, and data connect between sources, displays, and control systems. Today, the AV industry is in the midst of a transition to a new digital transmission infrastructure based on DVI, HDMI, and SDI. This transition brings with it many challenges,... (ログインが必要です: ) 詳細

Selecting a Streaming Codec

Every day, video over IP technology reaches farther into our professional and personal lives. As networks expand and streaming technologies mature, we find ourselves with greater access to information and an improved ability to communicate using video... (ログインが必要です: ) 詳細

HDMI 2.0: Specification Overview & Frequently Asked Questions

HDMI 2.0 was developed by the HDMI Forum to provide new functionality for this widely adopted technology. Released in September 2013, the specification includes support of increased bandwidth up to 18 Gbps, resolutions up to 4K @ 60 Hz, simultaneous delivery of two video streams and up to four audio streams,...  詳細

USB Switching in AV Environments

USB is a popular standard that has been around since 1995. Its evolution has extended to the point where each of us utilizes this interface on a daily basis. USB ports are standard fixtures on computers and laptops with further extension recently onto other peripheral devices ....  詳細

Courtroom of the Future

The Courtroom of the Future relies on a fiber infrastructure to ensure that future upgrades to the AV system can use the existing cabling. It provides a...  詳細

Digital Signage

This pharmaceutical building has public lobbies for customer access and general admittance to the site. Employee lounges and cafeterias are ...  詳細

HDMI: The Short and the Long of It

HDMI, or High Definition Multimedia Interface, is a digital AV interface that supports high resolution computer-video and HDTV as well as multiple channels of audio on a single cable. It is prevalent in flat-panel displays and projectors as well as DVD players, Blu-ray Disc players, and even some laptops and PC graphics...  詳細

Why a Videowall?

A videowall typically requires a significant investment, and is often the most expensive line item in a facility’s capital outlay for an AV project. While the videowall functions as a single display, it is always important to remember that it is a system. Videowall processors are a significant component of the videowall...  詳細

8Kデータレートカリキュレーター

8Kデータレートカリキュレーターは、システム設計、設置およびセットアップの際に役立つツールです。希望する解像度、リフレッシュレート、カラー深度およびカラーサンプリングを選択するだけで、ケーブルやスケーラー、システムその他のコンポーネントが対応しなければならないデータレートを算出します。詳細モードでは、SMPTE/CTA/DCIおよびVESAの解像度を選択可能、またタイミングパラメーターとアスペクト比を図と一覧表形式で表示します。標準規格、リフレッシュレート、解像度およびカラー深度を指定して、タイミングパラメーター、ビデオデータレートおよびアスペクト比を図で表示し印刷することが可能です。 カリキュレーターを起動する  詳細

Digital Design Best Practices - Signal Integrity

This article concentrates on signal integrity, one of the three core components in digital system architecture. The other two, equally important components are content protection and resolution management. Signal integrity relates to maintaining the signal waveforms and sync timing throughout the signal path so that the...  詳細

HDMI Cable Quality Matters in Pro AV

There’s a popular belief, widely tossed around on the Internet, that all HDMI cables are the same. If there’s a picture at the end of the cable, it’s impossible to tell the difference between a cheap cable and one that costs two or three or ten times as much. I suppose that’s a fair statement if one is connecting a $99... (ログインが必要です: ) 詳細

HDMI: The Short and the Long of It

HDMI, or High Definition Multimedia Interface, is a digital AV interface that supports high resolution computer-video and HDTV as well as multiple channels of audio on a single cable. It is prevalent in flat-panel displays and projectors as well as DVD players, Blu-ray Disc players, and even some laptops and PC graphics...  詳細

DVI and HDMI: The Short and the Long of It

Most DVI input cables for computer monitors are two meters long just like the typical analog VGA input cable. In our world of systems design, two meters is too short. For AV digital interfaces to become commonplace, the norm will not be these simple, desktop hookups. Systems designers and integrators require long run distance...  詳細

HD-SDI, HDMI, and Tempus Fugit

HD-SDI (high definition serial digital interface) and HDMI (high definition multimedia interface) version 1.3 are receiving considerable attention these days. "These days" really moved ahead rapidly now that I recall writing in this column on HD-SDI just one year ago. And, exactly two years ago the topic was DVI and HDMI...  詳細

HD-SDI: More Possibilities than Just Television

It seems that the popular concept of digital video among the masses arrived with the DVI connection to the computer monitor. Of course, the DV format for consumer video cameras arrived earlier, but for most it just didn't seem like digital video. Why? I think we've only recognized what digital video can be since the moment...  詳細

Digital Video: Are You 4:2:2 Compliant?

Maintaining the original quality of an analog event is paramount in the television broadcast industry. This concern alone drove the development and adoption of the ubiquitous digital recording format referred to using various names: 4:2:2 Component Digital, CCIR 601, D1, or perhaps SDI (Serial Digital Interface). Why is...  詳細

HDMI 2.0: Specification Overview & Frequently Asked Questions

HDMI 2.0 was developed by the HDMI Forum to provide new functionality for this widely adopted technology. Released in September 2013, the specification includes support of increased bandwidth up to 18 Gbps, resolutions up to 4K @ 60 Hz, simultaneous delivery of two video streams and up to four audio streams,...  詳細

Calculating ROI

One of the key factors used in determining whether or not to purchase new classroom technology is a calculation of Return on Investment, or ROI. While there are many factors to consider, ROI generally falls into two main categories: hard returns, which can be demonstrated in financial terms, and soft returns that are less...  詳細

Choosing the Best Methods for Control

A device’s control requirements are often dictated by the device manufacturer. AV devices originate from a variety of different manufacturers and access to control functions can vary widely.  詳細

College Achieves New Level of Student Service with Extron TouchLink-Based Control Systems

Montgomery County Community College in Blue Bell, Pennsylvania, recently upgraded its primary student services building, College Hall. School officials wanted to use AV technology to streamline student services for all students. With help from Fitch Electronics, the school selected Extron equipment for key functions and...  詳細

Making Choices: Control System Size and Scope

Proper design is a balancing act. Designers must evaluate the goals and needs of the client and weigh them against the client’s budgetary constraints.  詳細

TouchLink GUI Templates and Beyond

Infocomm 2009 brought the introduction of Extron’s TouchLink® product line, the first fully configurable touchscreen interface for the professional AV market. TouchLink was designed from the ground up to enable development and deployment of the most typical AV control installations including room types such as a single...  詳細

Understanding the Control Project Timeline

This control project timeline presents a best-case scenario for a well-organized AV installation. It proposes a systematic, logical workflow that integrators and project managers can reference during a project, or, ideally, prior to a project’s start. Proposal The proposal phase of the project encompasses the initial...  詳細

通信のための信号およびインフラ

制御対象機器と制御方法が決まれば、使用する信号と、信号をコントロールプロセッサーから制御対象機器に伝送するためのインフラを詳細に検討することが可能になります。  詳細

VoIP

VoIP Voice over IP DMP PlusシリーズVモデルは、個別の回線または共有回線として設定可能な、広帯域コーデックに対応した8系統のVoIP回線を装備しており、ローカル会議システムにも対応しています。VoIPシステムと使用可能、これらのモデルはいずれも、最大8部屋に個別の回線または共有回線を提供することが可能です。...  詳細

エクストロンのDante対応製品

DanteオーディオネットワークはLANまたはWANを経由してデジタルオーディオの配信を可能にします。これにより、オーディオシステムの拡張性、容易な設置、配線の簡素化等の多くの利点をもたらします。  詳細

AES67

AES67規格によるAudio over IPの相互運用性 ここ数年、様々なAudio over IPプロトコルが登場し、そのうちのいくつかが、特定のメーカーにより特定の市場に導入されています。しかしながら、互換性のないAudio over IPプロトコルを使用した機器でシステムを構成しなければならない場合があります。相互運用規格がないために、機器の選択を変更したりオーディオネットワーク自体をあきらめて、IPソリューションの柔軟性を犠牲にすることを余儀なくされていました。...  詳細

Ceiling Speaker Calculator

The Ceiling Speaker Calculator is a convenient online tool and a valuable resource for estimating the number of ceiling speakers needed for a sound reinforcement system in a room or listening area. Simply enter some basic information including room dimensions, the Extron ceiling speaker model, the type of...  詳細

Class D Amplifiers – Not 'Just Audio'

Yes, I'm a video guy. You've probably heard one of us (not me) disrespectfully downplay the ubiquitous field of aural engineering as "it's just audio". This article is about audio, but don't energize your shields just yet. I'm on your side... veteran project manager of an audio system having CD quality signal-to-noise...

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Design Mecca Overcomes AV Hurdles

The American Institute of Architects, headquartered in Washington, DC, was founded in 1857, and today has nearly 300 state and local chapters in the U.S. and around the world. The AIA strives to meet the needs and interests of the nation’s architects and the public they serve by developing public awareness of the value of architecture and the importance of good design. (ログインが必要です: )

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Extron's Patented Ripple Steering Class D Audio Amplifier Technology

Class D Audio Power Amplifiers offer the highest efficiency possible, resulting in cooler running, longer lasting products. They are not without their drawbacks, however, one of these typically being increased EMI - Electromagnetic Interference. Extron's proprietary Ripple Steering technology greatly improves the EMI performance...  詳細

Plenum-Rated — More Than Just Cables and Speakers

Many of us automatically think of cable or speakers when we hear the word "plenum". It is generally known that Extron has offered plenum-rated cable for years; however, many are unaware that we offer other types of plenum-rated products as well. These products are designed to provide convenience and installation flexibility...  詳細

The Mysterious Loudness Control: What Does It Do?

The first really decent stereo audio system I owned had a pushbutton on the front panel called "loudness." I pushed it. I decided the audio sounded better so I left it pushed in; never changed it. OK, occasionally I would push it to the off position; nope, sounded better on. Thinking back, I really didn't care what it...  詳細

Selecting the Right H.264 Solution

Selecting the Right H.264 Solution What is H.264? H.264 is a standard for video compression also known as MPEG-4 Part 10 or MPEG-4 AVC. It was developed by the ITU-T Video Coding Experts Group (VCEG) together with the ISO/IEC Moving Picture Experts Group (MPEG) and is the product of a partnership effort known as the...  詳細

Avoiding Common Pitfalls Integrating AV Products onto IP Networks

Advancements in audiovisual technology have brought changes to the ways audio, video, and data connect between sources, displays, and control systems. Today, the AV industry is in the midst of a transition to a new digital transmission infrastructure based on DVI, HDMI, and SDI. This transition brings with it many challenges,... (ログインが必要です: ) 詳細

Selecting a Streaming Codec

Every day, video over IP technology reaches farther into our professional and personal lives. As networks expand and streaming technologies mature, we find ourselves with greater access to information and an improved ability to communicate using video... (ログインが必要です: ) 詳細

VN-Matrix Combines Real and Virtual Training Cross Country for AFRL

The Air Force Research Laboratory - AFRL faced several significant technical and operational challenges when it set out to produce a real-time, real-world demonstration of a training simulation system....  詳細

Eyes on the Roads

The Borough Councils of Greater London have a duty to maintain safe roadways that will support efficient transportation and the economic well-being of the metropolitan area. Residents of Greater London are all too familiar with seeing road work projects that extend longer than their timeframe expectations... (ログインが必要です: ) 詳細

Training the Future Doctors of British Columbia

Early in 2002, British Columbia was faced with a critical shortage of doctors to serve its approximately 4.6 million citizens. Additionally, the northern, southern, and island regions had a difficult time enticing new doctors to set up practices beyond Vancouver’s metropolitan area. Two primary factors contributed to this... (ログインが必要です: ) 詳細

A Fiber Optic Connector Primer

Optical fiber transmission of AV signals has come of age and it's time to take another step along this new, adventurous road. A fiber solution may sound like a great idea for those challenging long-haul or highly secure applications, and then reality sets in. The fiber transmission solution is still a serious investment...  詳細

Campus Technology

Universities are centers of research as well as institutions for higher learning. Campuses feature multiple buildings with classrooms, offices, ....  詳細

Courtroom of the Future

The Courtroom of the Future relies on a fiber infrastructure to ensure that future upgrades to the AV system can use the existing cabling. It provides a...  詳細

Digital Signage

This pharmaceutical building has public lobbies for customer access and general admittance to the site. Employee lounges and cafeterias are ...  詳細

Fiber Optic Cables in AV Systems

The combination of light and glass presents some unique properties that give AV professionals powerful tools in common AV applications. A fiber optic cable can be used to send high resolution video, audio, and control signals on a single fiber over 30 km (18.75 miles), and avoids the risk of signal loss or degradation,...  詳細

Fiber Optic Frequently Asked Questions

The following provides you with questions and answers about Extron Fiber Optic products: What is optical fiber? What is multimode fiber? What is singlemode fiber? How is an AV signal transmitted down a fiber? What is a light-emitting diode? What is a laser diode? What is a VCSEL? What is a photodetector? What...  詳細

Fiber Optic Transmission in AV Comes of Age

Folks, the good ol' days are here right now. More technical solutions are available for audiovisual systems designers in both analog and digital equipment than ever before. One of the most exciting new toys for signal distribution is RGBHV digital fiber optic transmission. Most currently installed fiber transmission...  詳細

Knowledge Wall

A knowledge wall is the center of aggregated information used for monitoring and analyzing to make critical decisions related to security, emergency services...  詳細

Multiplexing AV Signals in Fiber Optic Systems

Multiplexing Signals in Fiber Optic Systems TDM combines multiple digital signals into a single serial digital bit stream. A specialized circuit, called a serializer, allocates parallel input streams into time slots in the serial output. In a fiber optic system, the serial bit stream is transmitted as a single wavelength...  詳細

USB Switching in AV Environments

USB is a popular standard that has been around since 1995. Its evolution has extended to the point where each of us utilizes this interface on a daily basis. USB ports are standard fixtures on computers and laptops with further extension recently onto other peripheral devices ....  詳細

Digital Design Best Practices - Signal Integrity

This article concentrates on signal integrity, one of the three core components in digital system architecture. The other two, equally important components are content protection and resolution management. Signal integrity relates to maintaining the signal waveforms and sync timing throughout the signal path so that the...  詳細

AVシステム構築のトレンド- ツイストペア

AVシステム構築のトレンド- ツイストペア デジタルサイネージ、商業施設や空港ターミナルの各種表示、教育機関におけるディスプレー機器、あるいは民生用機器などの市場は、かつてない成長を見せています。ツイストペア製品は、それらの用途で主に使用される高解像度のビデオ信号を長距離伝送するために、さまざまな場面で活用されています。 .wpimg { PADDING-RIGHT: 0px; PADDING-LEFT: 0px; PADDING-TOP: 0px; PADDING-BOTTOM: 0px; FONT-SIZE: 8pt; FLOAT: right;...  詳細

HDMI 2.0: Specification Overview & Frequently Asked Questions

HDMI 2.0 was developed by the HDMI Forum to provide new functionality for this widely adopted technology. Released in September 2013, the specification includes support of increased bandwidth up to 18 Gbps, resolutions up to 4K @ 60 Hz, simultaneous delivery of two video streams and up to four audio streams,...  詳細

Extron XTP Systems Streamline AV System Designs

Any successful system design requires careful consideration for managing and distributing video, audio, and control signals. It is also essential to plan for provisioning data and power, to ensure that AV devices can be integrated onto a LAN for system control or Internet access, and that the electrical infrastructure... (ログインが必要です: ) 詳細

Integration Opportunities with 4K Displays

Displays with 4K, or roughly 4K×2K resolution provide a solution for applications requiring a greater number of pixels on large screens. In 2005, the first 4K projection displays were introduced and began to be integrated into digital cinema, simulation, defense, medical, entertainment, and other environments. Since then,... (ログインが必要です: ) 詳細

スケーラー&スキャンコンバーター

スケーラー & ダウンコンバーターとは...? スケーラーとは、ビデオもしくはある解像度のコンピュータービデオ信号を別の解像度に変換します。特に、コンポジットビデオ、Sビデオ、コンポーネントビデオ、RGBコンピュータービデオ信号を、プラズマディスプレイ、LCDモニター、プロジェクターが持つ固有の解像度に変換する場合に使用します。 また、スケーラーを使用することによって、システム構築の簡素化が可能になります。ビデオ信号をディスプレイ固有の解像度にするようスケールアップする場合、ディスプレイにRGBHV信号を1系統接続するだけです。これによって据え付けや配線の時間が短縮され、制御システムのプログラミングも簡素化が図れます。スケーラーはAVシステム構成に、さらにいくつかの利点をもたらします。 ダウンコンバーターとは、基本的にはスケーラーと反対の処理を行います。高解像度のコンピュータービデオ信号をNTSCやPALの低解像度信号に変換します。コンピューター画像を通常のテレビ画像として表示したり、VTRやDVDに録画することが可能となります。 ダウンコンバーターはPowerPoint®のプレゼンテーションで使われているようなコンピューター画像データを、ビデオ会議スシステムで送信する際、標準ビデオ信号解像度に変換する等でお役に立ちます。 カテゴリー様々な用途に対応する各種スケーラーとダウンコンバーターをご用意しています。 ビデオスケーラー ビデオスケーラーは、コンポーネントビデオ信号のような標準ビデオ解像度の信号を、HDTV信号のような高解像度の出力レートに変換します。入力切換え、アスペクトレシオ変換、世界4大規格ビデオ信号デコーディング機能を搭載している製品もございます。 RGB...  詳細

シグナルプロセッサー

シグナルプロセッサーとは...? シグナルプロセッサーは、様々な方法で信号を処理します。コンポジットビデオ信号をSビデオ信号へ変換したり、信号の増幅やピーキング処理、信号の再フォーマット等を行います。シグナルプロセッサーによって画質を向上させたり、信号のルーティングや分配を容易にしたり、通常では不可能な手法による画像表示も可能にします。エクストロンでは数々のシグナルプロセッサーにより様々なアプリケーションに対応します。 カテゴリー 高性能・多機能なシグナルプロセッサーをご用意しております。 グラフィックストレージ グラフィックストレージは、会社のロゴ、デジタル写真、スライド等を再生する製品です。AVプレゼンテーションにおけるタイトルやプレゼンテーションセッション中のマスク画像表示、また、電光掲示板や店頭サインのスライドショー再生等にご使用いただけます。 ユニバーサルシグナルプロセッサー ユニバーサルシグナルプロセッサーは、高性能のスケーリング、スイッチング、スキャンコンバーター、スタンダードコンバーター、トランスコーダーの機能を全て搭載しています。様々なビデオ入力信号に対応し、トランスコードやアップ/ダウンコンバートを行い、全てのシステムにおけるビデオ信号フォーマット変換に対応可能です。 マルチウィンドウプロセッサー マルチウィンドウプロセッサーは、複数のコンピューター画像やDVD等のビデオ画像を一つの画面に表示可能にします。それぞれのウィンドウ画面は独立してスケール変換、位置変更、重ね表示が可能です。ビデオ会議システム、管制指令システム等でご使用いただけます。 エンコーダー、デコーダー、トランスコーダー エンコーダー、デコーダー、トランスコーダーは信号のフォーマットを変換します。全ての信号を同一信号フォーマットに揃えることにより、信号のルーティングや分配による混雑を最小限に抑えます。 シンクプロセッサー シンクプロセッサーはディスプレイの互換性による障害を未然に防ぐ為、正確かつ高品質なシンクを生成することに特化した製品です。シンクプロセッサーは、あらゆる入力シンク信号を他のフォーマットへ変換して出力したり、シンクが冗長された信号からシンク信号の抽出や同期タイミングをディジタルディスプレイ用に再生する機能もあります。 D/A...  詳細

Setting Up a Scan Converter

Properly setting up a scan converter can make all the difference in the world in respect to image quality. A little fine-tuning can make the difference between a poor image and a good image. To obtain the best image, certain adjustments should be made each time a scan converter is used in a new application. The sequence...  詳細

Courtroom of the Future - System Design Solution

The Courtroom of the Future relies on a fiber infrastructure to ensure that future upgrades to the AV system can use the existing cabling. It provides a model that can be readily adapted to various applications such as municipal, county, district, or superior courts. The AV system provides a modern means of presenting...  詳細

Environmental Considerations and Human Factors for Videowall Design

Environmental Considerations and Human Factors for Videowall Design The ability to present clear, high quality imagery from multiple sources and at large sizes makes videowalls valuable for maintaining situational awareness, as mission-critical information is presented in a working environment such as a control center...  詳細

Font Size and Legibility for Videowall Content

Legibility is very important for any videowall application with sources that include alphanumeric text. Viewers should be able to easily read text at all intended viewing distances without eyestrain. Delivering adequately sized text can be accomplished by scaling up or enlarging the source to make fonts legible, or...  詳細

Videowall Processor Features

Videowall processors are available with a wide range of features and capabilities. Many of them relate to system performance, image quality, and reliability, while others can help streamline system design and integration needs targeted at specific vertical market applications. Support for these...  詳細

Videowall System Control

Videowalls are among the most complex types of AV systems to set up and configure. Most of the operational complexity is within the videowall processor and its many functions, features, and capabilities. Working with a videowall processor will be greatly simplified if an intuitive, user-friendly interface is available...  詳細