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SCART (Euroconector, EuroAV)   Definition SCART (from Syndicat des Constructeurs d'Appareils Radiorécepteurs et Téléviseurs – Radio and Television Receiver Manufacturers' Association) is a French-originated standard and associated 21-pin connector for connecting audio-visual (AV) equipment. It is also known as Péritel (or Peritelevision) (especially in France), 21-pin EuroSCART (Sharp's marketing term in Asia), Euroconector, EuroAV or EXT. In America, another name is EIA Multiport (an EIA interface). In Europe, SCART used to be the most common method of connecting AV equipment, and was a standard connector for such devices; it was far less common elsewhere. As it was designed to carry analog standard-definition content, SCART has become obsolete with the introduction of new digital standards such as HDMI and DisplayPort, which can carry high-definition content and multichannel audio, though it remains commonly used. HDMI-CEC is derived from SCART's AV.link. However, SCART Connection can also support HD signals like 480p, 720p, 1080i, 1080p, if the SCART connection of a device is designed to support YPbPr connection, but this configuration is rare. The same for multichannel audio, but even this configuration remains rare, as it is not standardized . The official standard for SCART is CENELEC document number EN 50049-1. SCART is sometimes referred to as the IEC 933-1 standard.   References Wikipedia: https://en.wikipedia.org/wiki/SCART Wikidata: SCART (Q831468)   ... Mehr anzeigen

TOSLINK (optical audio cable)   Definition TOSLINK (from TOShiba-LINK) is a standardized optical fiber connector system. Also known generically as an "optical audio cable" or just "optical cable", its most common use is in consumer audio equipment (via a "digital optical" socket), where it carries a digital audio stream from components such as CD and DVD players, DAT recorders, computers, and modern video game consoles, to an AV receiver that can decode two channels of uncompressed lossless PCM audio or compressed 5.1/7.1 surround sound such as Dolby Digital Plus or DTS-HD High Resolution Audio. Unlike HDMI, TOSLINK does not have the bandwidth to carry the lossless versions of Dolby TrueHD, DTS-HD Master Audio, or more than two channels of PCM audio. Although TOSLINK supports several different media formats and physical standards, digital audio connections using the rectangular EIAJ/JEITA RC-5720 (also CP-1201 and JIS C5974-1993 F05) connector are by far the most common. The optical signal is a red light with a peak wavelength of 650 nm. Depending on the type of modulated signal being carried, other optical wavelengths may be present. A less common format is a coaxial cable ending in RCA jacks, which is found on some receivers.   References Wikipedia: https://en.wikipedia.org/wiki/TOSLINK Wikidata: TOSLINK (Q1410364)   ... Mehr anzeigen

Motion interpolation   Definition Motion interpolation or motion-compensated frame interpolation (MCFI) is a form of video processing in which intermediate animation frames are generated between existing ones by means of interpolation, in an attempt to make animation more fluid and to compensate for display motion blur.   References Wikipedia: https://en.wikipedia.org/wiki/Motion_interpolation Wikidata: Motion Interpolation (Q28457828)   ... Mehr anzeigen

Multi-band device   Definition In telecommunications, a multi-band device (including dual-band, tri-band, quad-band and penta-band devices) is a communication device (especially a mobile phone) that supports multiple radio frequency bands. All devices which have more than one channel use multiple frequencies; a band however is a group of frequencies containing many channels. Multiple bands in mobile devices support roaming between different regions where different standards are used for mobile telephone services. Where the bands are widely separated in frequency, parallel transmit and receive signal path circuits must be provided, which increases the cost, complexity and power demand of multi-band devices. The term quad-band describes a device that supports four frequency bands: 850 and 1900 MHz, mostly used in the Americas (ITU region 2), and the 900 and 1800 MHz bands used elsewhere. Most GSM/UMTS phones support all four bands, while most CDMA2000/1xRTT phones (mostly North America and voice transmission only) do not, and so are considered only dual-band devices. A few phones support both of the domestic frequencies but only one foreign one for limited roaming, making them tri-band phones. The term penta-band describes a device that supports a fifth frequency band, commonly the 2100 MHz band in much of the world. The Advanced Wireless Services (AWS) 1700 MHz band also seeing increased usage.   References Wikipedia: https://en.wikipedia.org/wiki/Multi-band_device   ... Mehr anzeigen

script (Unix)   Definition The script command is a Unix utility that records a terminal session. The scriptreplay command offers a replay function to script. The session is captured in file name typescript by default; to specify a different filename follow the script command with a space and the filename as such: script recorded_session. The ttyrec program provides the same kind of functionality and offers several bindings. Recorded shell sessions can be shared using online services. The advantage of sessions recorded in this format from the usual screencasts is that shell instructions can be easily copy/pasted from the player screen.   References Wikipedia: https://en.wikipedia.org/wiki/Script_(Unix)   ... Mehr anzeigen

Secure Digital (SD)   Definition Secure Digital (SD) is a non-volatile memory card format developed by the SD Card Association (SDA) for use in portable devices. The standard was introduced in August 1999 by joint efforts between SanDisk, Panasonic (Matsushita Electric) and Toshiba as an improvement over MultiMediaCards (MMC), and has become the industry standard. The three companies formed SD-3C, LLC, a company that licenses and enforces intellectual property rights associated with SD memory cards and SD host and ancillary products. The companies also formed the SD Association (SDA), a non-profit organization, in January 2000 to promote and create SD Card standards. SDA today has about 1,000 member companies. The SDA uses several trademarked logos owned and licensed by SD-3C to enforce compliance with its specifications and assure users of compatibility.   References Wikipedia: https://en.wikipedia.org/wiki/Secure_Digital Wikidata: Secure Digital card (Q466977)   ... Mehr anzeigen

Interface (computing)   Definition In computing, an interface is a shared boundary across which two or more separate components of a computer system exchange information. The exchange can be between software, computer hardware, peripheral devices, humans and combinations of these. Some computer hardware devices, such as a touchscreen, can both send and receive data through the interface, while others such as a mouse or microphone may only provide an interface to send data to a given system.   Hardware interfaces Hardware interfaces exist in many of the components, such as the various buses, storage devices, other I/O devices, etc. A hardware interface is described by the mechanical, electrical and logical signals at the interface and the protocol for sequencing them (sometimes called signaling). A standard interface, such as SCSI, decouples the design and introduction of computing hardware, such as I/O devices, from the design and introduction of other components of a computing system, thereby allowing users and manufacturers great flexibility in the implementation of computing systems. Hardware interfaces can be parallel with several electrical connections carrying parts of the data simultaneously, or serial where data is sent one bit at a time. Software Interfaces A software interface may refer to a wide range of different types of interface at different "levels": an operating system may interface with pieces of hardware. Applications or programs running on the operating system may need to interact via streams, and in object oriented programs, objects within an application may need to interact via methods. User interfaces A user interface is a point of interaction between a computer and humans; it includes any number of modalities of interaction (such as graphics, sound, position, movement, etc.) where data is transferred between the user and the computer system.   References Wikipedia: https://en.wikipedia.org/wiki/Interface_(computing) Wikidata: interface (Q23808)   ... Mehr anzeigen

Touchscreen   Definition A touchscreen is a display device that allows the user to interact with a computer by using their finger. They can be quite useful as an alternative to a mouse or keyboard for navigating a graphical user interface (GUI). Touchscreens are used on a variety of devices such as computer and laptop monitors, smartphones, tablets, cash registers, and information kiosks. Some touchscreens use a grid of infrared beams to sense the presence of a finger instead of utilizing touch-sensitive input. There are three types of touch screen technology: Resistive: A resistive touch screen panel is coated with a thin metallic electrically conductive and resistive layer that causes a change in the electrical current which is registered as a touch event and sent to the controller for processing. Resistive touch screen panels are generally more affordable but offer only 75% clarity and the layer can be damaged by sharp objects. Resistive touch screen panels are not affected by outside elements such as dust or water. Surface wave: Surface wave technology uses ultrasonic waves that pass over the touch screen panel. When the panel is touched, a portion of the wave is absorbed. This change in the ultrasonic waves registers the position of the touch event and sends this information to the controller for processing. Surface wave touch screen panels are the most advanced of the three types, but they can be damaged by outside elements. Capacitive: A capacitive touch screen panel is coated with a material that stores electrical charges. When the panel is touched, a small amount of charge is drawn to the point of contact. Circuits located at each corner of the panel measure the charge and send the information to the controller for processing. Capacitive touch screen panels must be touched with a finger unlike resistive and surface wave panels that can use fingers and stylus. Capacitive touch screens are not affected by outside elements and have high clarity.   References Wikipedia: https://en.wikipedia.org/wiki/Touchscreen   ... Mehr anzeigen

Adobe Acrobat   Definition Adobe Acrobat is a family of application software and Web services developed by Adobe Systems to view, create, manipulate, print and manage files in Portable Document Format (PDF). The family comprises Acrobat Reader (formerly Adobe Reader), Acrobat (formerly Acrobat Exchange) and Acrobat.com. The basic Acrobat Reader, available for several desktop and mobile platforms, is freeware; it supports viewing, printing and annotating of PDF files. Additional, "Premium", services are available for reader on paid subscription. The commercial proprietary Acrobat, available for Microsoft Windows and macOS only, can also create, edit, convert, digitally sign, encrypt, export and publish PDF files. Acrobat.com complements the family with a variety of enterprise content management and file hosting services.   References Wikipedia: https://en.wikipedia.org/wiki/Adobe_Acrobat Wikidata: Adobe Reader (Q2634567)   ... Mehr anzeigen

App (Application)   Definition App, apps or APP may refer to:   Application software that causes a computer to perform tasks for computer users Mobile app, software designed to run on smartphones and other mobile devices Web-App or web application, software designed to run inside a web browser Progressive Web App (PWA), a term used to denote web apps that use the latest web technologies.   References Wikipedia: https://en.wikipedia.org/wiki/App Article in other languages: Deutsch   ... Mehr anzeigen

Terminal adapter (TA)   Definition A terminal adapter (TA) is a device that allows a terminal to be connected to an interface on which it can not be operated directly. ISDN In ISDN terminology, a terminal adapter or TA is a device that connects a terminal (computer) to the ISDN network. Mobile Networks In Mobile networks, the terminal adapter is used by the Terminal equipment to access the Mobile termination, using AT commands. Automation industry In the automation industry, a terminal adapter is a passive device that converts a connector like the 8P8C (RJ-45) modular connector or 9 pin D-Sub into a terminal block to facilitate wiring. It is often used when daisy-chain wiring is necessary on a multi-node serial communication network like RS-485 or RS-422.   References Wikipedia: https://en.wikipedia.org/wiki/Terminal_adapter   ... Mehr anzeigen

Video Object (VOB)   Definition VOB (Video Object) is the container format in DVD-Video media. VOB can contain digital video, digital audio, subtitles, DVD menus and navigation contents multiplexed together into a stream form. Files in VOB format may be encrypted.   Files in VOB format have a .vob filename extension and are typically stored in the VIDEO_TS directory at the root of a DVD. The VOB format is based on the MPEG program stream format, but with additional limitations and specifications in the private streams. The MPEG program stream has provisions for non-standard data (as used in VOB files) in the form of so-called private streams. VOB files are a very strict subset of the MPEG program stream standard. While all VOB files are MPEG program streams, not all MPEG program streams comply with the definition for a VOB file.   References Wikipedia: https://en.wikipedia.org/wiki/VOB Wikidata: Video Object (Q1884715)   ... Mehr anzeigen

UEFI (Unified Extensible Firmware Interface)   Definition The Unified Extensible Firmware Interface (UEFI) is a specification that defines a software interface between an operating system and platform firmware. UEFI replaces the Basic Input/Output System (BIOS) firmware interface originally present in all IBM PC-compatible personal computers, with most UEFI firmware implementations providing legacy support for BIOS services. UEFI can support remote diagnostics and repair of computers, even with no operating system installed. Intel developed the original Extensible Firmware Interface (EFI) specification. Some of the EFI's practices and data formats mirror those from Microsoft Windows. In 2005, UEFI deprecated EFI 1.10 (the final release of EFI). The Unified EFI Forum is the industry body that manages the UEFI specification.   References Wikipedia: https://en.wikipedia.org/wiki/Unified_Extensible_Firmware_Interface Wikidata: Unified Extensible Firmware Interface (Q859398)   ... Mehr anzeigen

BIOS (basic input output system)   Definition For IBM PC compatible computers, BIOS (an acronym for Basic Input/Output System and also known as the System BIOS, ROM BIOS or PC BIOS) is non-volatile firmware used to perform hardware initialization during the booting process (power-on startup), and to provide runtime services for operating systems and programs. The BIOS firmware comes pre-installed on a personal computer's system board, and it is the first software run when powered on. The name originates from the Basic Input/Output System used in the CP/M operating system in 1975. Originally proprietary to the IBM PC, the BIOS has been reverse engineered by companies looking to create compatible systems. The interface of that original system serves as a de facto standard.   References Wikipedia: https://en.wikipedia.org/wiki/BIOS Wikidata: BIOS (Q226264)   ... Mehr anzeigen

Blue Screen of Death (stop errors)   Definition A stop error, better known as a Blue Screen of Death (also known as a blue screen or BSoD) is an error screen displayed on a Windows computer system after a fatal system error, also known as a system crash: when the operating system reaches a condition where it can no longer operate safely.   References Wikipedia: https://en.wikipedia.org/wiki/Blue_Screen_of_Death Wikidata: Blue screen (Q4930157), Blue Screen of Death (Q214795)   ... Mehr anzeigen

Bit   Definition The bit is a basic unit of information used in computing and digital communications. A binary digit can have only one of two values, and may be physically represented with a two-state device. These state values are most commonly represented as either a 0or1.   References Wikipedia: https://en.wikipedia.org/wiki/Bit Wikidata: bit (Q8805)   ... Mehr anzeigen

Bluetooth   Definition Bluetooth is a wireless technology standard for exchanging data over short distances (using short-wavelength UHF radio waves in the ISM band from 2.4 to 2.485 GHz) from fixed and mobile devices, and building personal area networks (PANs). Invented by telecom vendor Ericsson in 1994, it was originally conceived as a wireless alternative to RS-232 data cables. The Bluetooth logo   References Wikipedia: https://en.wikipedia.org/wiki/Bluetooth Wiktionary: https://en.wiktionary.org/wiki/Bluetooth Wikidata: Bluetooth (Q39531) Article in other languages: Deutsch Nederlands   ... Mehr anzeigen

Universal Mobile Telecommunications System (UMTS)   Definition The Universal Mobile Telecommunications System (UMTS) is a third generation mobile cellular system for networks based on the GSM standard. Developed and maintained by the 3GPP (3rd Generation Partnership Project), UMTS is a component of the International Telecommunications Union IMT-2000 standard set and compares with the CDMA2000 standard set for networks based on the competing cdmaOne technology. UMTS uses wideband code division multiple access (W-CDMA) radio access technology to offer greater spectral efficiency and bandwidth to mobile network operators. UMTS specifies a complete network system, which includes the radio access network (UMTS Terrestrial Radio Access Network, or UTRAN), the core network (Mobile Application Part, or MAP) and the authentication of users via SIM (subscriber identity module) cards. The technology described in UMTS is sometimes also referred to as Freedom of Mobile Multimedia Access (FOMA) or 3GSM. Unlike EDGE (IMT Single-Carrier, based on GSM) and CDMA2000 (IMT Multi-Carrier), UMTS requires new base stations and new frequency allocations.   References Wikipedia: https://en.wikipedia.org/wiki/UMTS Wikidata: Universal Mobile Telecommunications System (Q79686)   ... Mehr anzeigen

USB (Universal Serial Bus)   Definition USB, short for Universal Serial Bus, is an industry standard that establishes specifications for cables, connectors and protocols for connection, communication and power supply (interfacing) between computers, peripherals and other computers. USB was designed to standardize the connection of computer peripherals (including keyboards, pointing devices, digital cameras, printers, portable media players, disk drives and network adapters) to personal computers, both to communicate and to supply electric power. It has largely replaced a variety of earlier interfaces, such as serial ports and parallel ports, as well as separate power chargers for portable devices – and has become commonplace on a wide range of devices. Released in 1996, the USB standard is maintained by the USB Implementers Forum (USB-IF). There have been four generations of USB specifications: USB 1.x, USB 2.0, USB 3.x, and USB4.x.   References Wikipedia: https://en.wikipedia.org/wiki/USB Wikidata: Universal Serial Bus (Q42378)   Article in other languages: Deutsch Nederlands ... Mehr anzeigen

DisplayPort   Definition DisplayPort is a digital display interface developed by the Video Electronics Standards Association (VESA). The interface is primarily used to connect a video source to a display device such as a computer monitor, though it can also be used to carry audio, USB, and other forms of data. Pin out External connector (source-side) on PCB Display Port: pin out diagram   References Wikipedia: https://en.wikipedia.org/wiki/DisplayPort Wikidata: DisplayPort (Q753452)   Article in other languages: Deutsch Nederlands ... Mehr anzeigen

Conditional-Access-Modul (CAM)   Definition Ein Conditional-Access-Modul (CAM) ist ein elektronisches Gerät, das über einen Common-Interface-Schacht in ein DVB-Empfangsgerät eingeschoben wird. Die Aufgabe dieses Moduls besteht lediglich darin, den Schlüsselaustausch zwischen SmartCard und der eigentlichen Decoderhardware, welche nach dem Common-Scrambling-Algorithmus (CSA) arbeitet, zu verwalten. Der CSA dient dazu, Programme von Bezahlfernseh-Anbietern zu entschlüsseln. Hierzu kann ein Schlüssel benutzt werden, der sich auf einer SmartCard befindet, die dem Benutzer von seinem Programmanbieter gegen einmalige und/oder monatliche Gebühr ausgehändigt wird. Diese SmartCard muss hierzu in das CAM eingeführt werden, damit die auf dem CAM befindliche Elektronik auf die SmartCard zugreifen kann.   Referenzen Wikipedia: https://de.wikipedia.org/wiki/Conditional_Access_Module Wikidata: conditional-access module (Q1754555)   ... Mehr anzeigen

DisplayPort   Definition DisplayPort ist ein durch die Video Electronics Standards Association (VESA) genormter, universeller und lizenzfreier Verbindungsstandard für die Übertragung von digitalen Bild- und Tonsignalen. Anwendungsbereiche sind im Wesentlichen der Anschluss von Bildschirmen und Fernsehgeräten an Computer, DVD-Spieler und ähnliche Geräte.   Pinbelegung Die Pinbelegung des DisplayPorts von der Videoquelle (PC, Laptop) aus gesehen. Auf der Monitorseite sind die Lanes 0-3 vertauscht, d.h. Lane 0 ist mit Lane 3 ausgekreuzt, Lane 1 mit Lane 2. Display Port: pin out diagram   Referenzen Wikipedia: https://de.wikipedia.org/wiki/DisplayPort Wikidata: DisplayPort (Q753452) Artikel in anderen Sprachen: English article   ... Mehr anzeigen

Bit   Definition Der Begriff Bit wird in der Informatik, der Informationstechnik, der Nachrichtentechnik sowie verwandten Fachgebieten in folgenden Bedeutungen verwendet:   als Maßeinheit für den Informationsgehalt. Dabei ist 1 bit der Informationsgehalt, der in einer Auswahl aus zwei gleich wahrscheinlichen Möglichkeiten enthalten ist. Der Informationsgehalt kann ein beliebiger reeller, nicht negativer Wert sein. als Maßeinheit für die Datenmenge digital repräsentierter (gespeicherter, übertragener) Daten. Die Datenmenge ist der maximale Informationsgehalt von Daten mit gleich großer Repräsentation. Das Maximum stellt sich ein, falls alle möglichen Zustände gleich wahrscheinlich sind. Das Maximum ist ein ganzzahliges Vielfaches von 1 bit. Es ist die Anzahl der für die Darstellung verwendeten binären Elementarzustände. als Bezeichnung für eine Stelle einer Binärzahl (üblicherweise „0“ und „1“) oder allgemeiner für eine bestimmte Stelle aus einer Gruppe binärer Stellen.   Referenzen Wikipedia: https://de.wikipedia.org/wiki/Bit Wikidata: bit (Q8805)   ... Mehr anzeigen

Common Interface (CI)   Definition Common Interface (CI), ist eine Schnittstelle von DVB-Empfangsgeräten, die mit dem bei Notebooks zu findenden PCMCIA-Steckplatz kompatibel ist. Mittlerweile gibt es in vielen Receivern und TV-Geräten einen CI-Schacht. Karten, die in diesen Schacht passen, heißen CI-Module.   Common Interface Plus (CI+ / CI Plus) Bei CI+ handelt es sich um eine proprietäre Weiterentwicklung des DVB-CI-Standards, das von den CAM-Herstellern Neotion und SmarDTV sowie den vier Fernsehgeräte-Herstellern Panasonic, Philips, Samsung und Sony spezifiziert wurde. Da CI+ keinen verabschiedeten Standard des DVB-Konsortiums darstellt, handelt es sich um keinen direkten Nachfolger des DVB-CI-Systems. Das DVB-Konsortium, dem über 270 Sender, Gerätehersteller, Provider und andere Industrievertreter angehören, arbeitet bereits seit mehreren Jahren an der Version 2.0 des DVB-CI-Standards. Version 1.4 der CI+ Spezifikation wurde allerdings wieder durch das DVB-Konsortium veröffentlicht.   Referenzen Wikipedia: https://de.wikipedia.org/wiki/Common_Interface Wikidata: Common Interface (Q1116154)   ... Mehr anzeigen

Browser   Definition Webbrowser oder allgemein auch Browser sind spezielle Computerprogramme zur Darstellung von Webseiten im World Wide Web oder allgemein von Dokumenten und Daten. Das Durchstöbern des World Wide Webs beziehungsweise das aufeinanderfolgende Abrufen beliebiger Hyperlinks als Verbindung zwischen Webseiten mit Hilfe solch eines Programms wird auch als Internetsurfen bezeichnet. Neben HTML-Seiten können Webbrowser verschiedene andere Arten von Dokumenten wie zum Beispiel Bilder und PDF-Dokumente anzeigen. Webbrowser stellen die Benutzeroberfläche für Webanwendungen dar.   Referenzen Wikipedia: https://de.wikipedia.org/wiki/Webbrowser   ... Mehr anzeigen

Bluetooth   Definition Bluetooth ist ein in den 1990er Jahren durch die Bluetooth Special Interest Group (SIG) entwickelter Industriestandard gemäß IEEE 802.15.1 für die Datenübertragung zwischen Geräten über kurze Distanz per Funktechnik (WPAN). Dabei sind verbindungslose sowie verbindungsbehaftete Übertragungen von Punkt zu Punkt und Ad-hoc- oder Piconetze möglich. Der Name „Bluetooth“ leitet sich vom dänischen König Harald Blauzahn (englisch Harald Bluetooth) ab, der verfeindete Teile von Norwegen und Dänemark vereinte.   The Bluetooth logo Das Logo zeigt ein Monogramm der altnordischen Runen für H und B.   Bluetooth-Versionen Bluetooth 1.0 und 1.0B (Juli 1999) Enthielt Sicherheitsprobleme durch Bluetooth Hardware Device Address Transmission (BD_ADDR); maximale Datenübertragungsrate von 732,2 kbit/s Bluetooth 1.1 (Februar 2001) Indikator für die Signalstärke hinzugefügt Received Signal Strength Indication (RSSI); maximale Datenübertragungsrate von 732,2 kbit/s Bluetooth 1.2 (November 2003) Weniger empfindlich gegen statische Störer (zum Beispiel WLAN) durch Adaptive Frequency-Hopping spread spectrum (AFH); neue Pakettypen für synchrone Übertragung (eSCO); maximale Datenübertragungsrate von 1 Mbit/s Bluetooth 2.0 + EDR (November 2004) Etwa dreifache Datenübertragungsgeschwindigkeit durch Enhanced Data Rate (EDR) mit maximal 2,1 Mbit/s; abwärtskompatibel, d. h., es können gleichzeitig EDR- und Nicht-EDR-Verbindungen bedient werden. Bluetooth 2.1 + EDR (auch Lisbon Release genannt, August 2007) Neue Funktionen wie Secure Simple Pairing, Quality of Service. Bluetooth 3.0 + HS (auch Seattle Release genannt, April 2009) Für diese Version ist die Unterstützung eines zusätzlichen Highspeed (HS)-Kanals auf Basis von WLAN und UWB verfügbar. Die Nutzung von WLAN ist dabei lokal deutlich eingeschränkt. Die Kommunikation funktioniert zwischen einzelnen Geräten (Peer-to-Peer) und nicht durch Verteilung (Multicast). Dafür braucht sich der Nutzer auch nicht anzumelden, die L2CAP-Protokollschicht wurde erweitert, um neben dem Standard-Bluetooth-Kanal zusätzlich diesen Highspeed-Kanal zu unterstützen. Damit kann eine theoretische Übertragungsrate von 24 Mbit/s erreicht werden. Bei UWB (Ultrabreitband) als physikalische Übertragungsart (basierend auf der Spezifikation ECMA-368) und WiMedia MAC als Protokollschicht waren bis zu 480 Mbit/s geplant. Auf dieser Spezifikation hätten auch andere Protokolle wie WUSB und IP aufgesetzt werden sollen. Die Spezifikation wurde im Oktober 2009 aufgegeben. Bluetooth 3.0 + EDR „EDR“ steht für „Enhanced Data rate“. Bluetooth 4.0 Die Spezifikation 4.0 wurde am 17. Dezember 2009 verabschiedet. Mit diesem Standard wurde erstmals der Protokollstapel Low Energy verfügbar und neue Profile zu Low Energy kamen seitdem laufend hinzu. Der Standard 4.0 ist abwärtskompatibel mit allen Vorgänger-Versionen. Für Verbindungen mit den bisherigen Protokollen kommt eine verbesserte Fehlerkorrektur zum Einsatz, für das erforderliche Maß an Sicherheit soll eine AES-Verschlüsselung mit 128 Bit verwendet werden. Bluetooth Low Energy/Smart ist ein Teil des 4.0-Standards, bietet allerdings keine Abwärtskompatibilität. Dafür ist es möglich, in weniger als fünf Millisekunden eine Übertragung aufzubauen und diese bis zu einer Entfernung von 100 Metern aufrechtzuerhalten. Der wichtigste Vorteil bei Einsatz von Bluetooth Low Energy in neuen Endgeräten ist die Reduzierung des Stromverbrauchs durch Optimierungen, wie die kürzere Aufbauzeit für eine Übertragung oder die Schlafphasen zwischen den synchronisierten Sendezyklen. Allerdings können dadurch keine Audiodaten mehr übertragen werden. Hybride Geräte, die sowohl Bluetooth Classic als auch Bluetooth Low Energy unterstützen, werden „Smart Ready“ genannt. Bluetooth 4.1 Im Dezember 2013 wurde Version 4.1 der Bluetooth-Spezifikation veröffentlicht. Bluetooth 4.2 Smart Im Dezember 2014 wurde der Bluetooth 4.2 Standard vorgestellt. Hauptaugenmerk bei der Entwicklung waren erweiterte Sicherheitsmerkmale, eine höhere Übertragungsgeschwindigkeit und ein noch sparsamerer Bluetooth Low Energy modus. Bluetooth 5.0 Am 16. Juni 2016 wurde Bluetooth 5 offiziell angekündigt. Laut dieser Ankündigung soll die Reichweite vervierfacht, die Datenrate verdoppelt werden und zwei Geräte gleichzeitig verbunden sein können. Zusätzlich sollen neue Dienste wie Standortübermittlung eingeführt werden. Die endgültige Verabschiedung fand am 6. Dezember 2016 statt.     Referenzen Wikipedia: https://de.wikipedia.org/wiki/Bluetooth Wiktionary: https://en.wiktionary.org/wiki/Bluetooth Wikidata: Bluetooth (Q39531)   ... Mehr anzeigen