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Hauppauge WinTV TV tuner card

One of the first DVB-S2 tuner cards.

D-Link external TV tuner

A TV tuner card is a computer component that allows television signals to be received by a computer. Most TV tuners also function as video capture cards, allowing them to record television programs onto a hard disk. Image File history File links Broom_icon. ... Image File history File links Download high resolution version (1024x772, 353 KB) Beschreibung: Hauppauge Win TV-Karte Fotograf: Darkone, 5. ... Image File history File links Download high resolution version (1024x772, 353 KB) Beschreibung: Hauppauge Win TV-Karte Fotograf: Darkone, 5. ... Image File history File links Download high resolution version (2304x2286, 1841 KB) Hinweis/Notice Die Originalversion des Bildes befindet sich auf www. ... Image File history File links Download high resolution version (2304x2286, 1841 KB) Hinweis/Notice Die Originalversion des Bildes befindet sich auf www. ... DVB-S2 is a newer specification of the DVB-S (Digital Video Broadcasting) standard. ... Image File history File linksMetadata Size of this preview: 800 × 600 pixelsFull resolution (2592 × 1944 pixel, file size: 2 MB, MIME type: image/jpeg) File links The following pages on the English Wikipedia link to this file (pages on other projects are not listed): TV tuner card Metadata This file... Image File history File linksMetadata Size of this preview: 800 × 600 pixelsFull resolution (2592 × 1944 pixel, file size: 2 MB, MIME type: image/jpeg) File links The following pages on the English Wikipedia link to this file (pages on other projects are not listed): TV tuner card Metadata This file... An electronic component is a basic electronic building block packaged in a discrete form with two or more connecting leads or metallic pads. ... A BlueGene supercomputer cabinet. ... It has been suggested that this article or section be merged with Video editing card. ... Typical hard drives of the mid-1990s. ...

TV tuners are available as PCI-bus expansion card or USB devices. The trend is towards USB devices. In addition, some video cards double as TV tuners, notably the ATI All-In-Wonder series. The card contains a receiver, tuner, demodulator, and an analog-to-digital converter for analog TV. Many cards are limited to the radio frequencies and video formats used in the country of sale. However, many TV tuners used in computers use DSP, so a firmware upgrade is often all that's necessary to change the supported video format. Many newer TV tuners have flash memory big enough to hold the firmwares for decoding several different video formats, making it possible to use the tuner in many countries without having to flash the firmware. In addition to the frequency tuner, many include a composite video input. Many TV tuners can function as FM radios: this is because the FM radio spectrum lies between television channels 6 and 7, and the DSP can be easily programmed to decode FM. This article or section does not cite its references or sources. ... In computer architecture, a bus is a subsystem that transfers data or power between computer components inside a computer or between computers and typically is controlled by device driver software. ... Fitting an expansion card into a motherboard An expansion card in computing is a printed circuit board that can be inserted into an expansion slot of a computer motherboard to add additional functionality to a computer system. ... Note: USB may also mean upper sideband in radio. ... A video card, (also referred to as a graphics accelerator card, display adapter, graphics card, and numerous other terms), is an item of personal computer hardware whose function is to generate and output images to a display. ... The current version of the article or section is written like a magazine article instead of the formal tone expected of an encyclopedia. ... In radio terminology, a receiver is an electronic circuit that receives a radio signal from an antenna and decodes the signal for use as sound, pictures, navigational-position information, etc. ... A Sansui TU-X1 stereo FM tuner. ... A demodulator is an electronic circuit used to recover the information content from the carrier wave of a signal. ... An analog-to-digital converter (abbreviated ADC, A/D or A to D) is an electronic circuit that converts continuous signals to discrete digital numbers. ... Analog television encodes picture information as an analog signal, that is, by varying the voltages and/or frequencies of the signal. ... Radio frequency, or RF, refers to that portion of the electromagnetic spectrum in which electromagnetic waves can be generated by alternating current fed to an antenna. ... Video (Latin for I see, first person singular present, indicative of videre, to see) is the technology of electronically capturing, recording, processing, storing, transmitting, and reconstructing a sequence of still images representing scenes in motion. ... Look up format in Wiktionary, the free dictionary. ... Digital signal processing (DSP) is the study of signals in a digital representation and the processing methods of these signals. ... In computing, firmware is software that is embedded in a hardware device. ... A USB flash drive. ... Composite video is the format of an analog television (picture only) signal before it is combined with a sound signal and modulated onto an RF carrier. ... The term input has a variety of uses in different fields. ... FM radio is a broadcast technology invented by Edwin Howard Armstrong that uses frequency modulation to provide high-fidelity sound over broadcast radio. ...

There are currently three kinds of tuner card on the market:

• Cards for analog TV. Cheaper models output raw tuner data, which requires CPU-intensive encoding by another device, normally the system CPU. More expensive models encode the signal to MPEG, relieving the main CPU of this load. Many cards also have analog input (composite video or S-Video). and many also provide FM radio reception.

• Cards for digital TV, including satellite TV. Digital TV is broadcast as an MPEG stream, so no encoder is necessary; instead, the digital cards must extract the correct PIDs from the transport stream, which requires much less processing power.

• Hybrid tuners that handle both analog and digital inputs.

A related device is a digital television adapter, a device that receives DVB transmissions and converts them to analog for use on analog TVs. Analog television encodes picture information as an analog signal, that is, by varying the voltages and/or frequencies of the signal. ... The Moving Picture Experts Group or MPEG is a working group of ISO/IEC charged with the development of video and audio encoding standards. ... Composite video is the format of an analog television (picture only) signal before it is combined with a sound signal and modulated onto an RF carrier. ... S-Video (also known as Y/C) is a baseband analog video format offering a higher quality signal than composite video, but a lower quality than RGB and component video. ... Digital television (DTV) uses digital modulation and compression to broadcast video, audio and data signals to television sets. ... A digital television adapter, (DTA), or digital-to-analog converter (box), is a device that receives, by means of an antenna, a digital television (DTV) transmission, and converts that signal into an analog television signal that can be received and displayed on an analog television. ... Official DVB logo, found on compliant devices DVB, short for Digital Video Broadcasting, is a suite of internationally accepted, open standards for digital television maintained by the DVB Project, an industry consortium with more than 270 members, and published by a Joint Technical Committee (JTC) of European Telecommunications Standards Institute...

Manufacturers

• ASUS
• ATI Technologies
• AVerMedia
• D-Link
• EXCEL
• eVGA
• Hauppauge
• Leadtek
• Micro-Star International (MSI)
• NVIDIA
• pcHDTV
• Pinnacle Systems
• TerraTec

ASUSTeK Computer Inc. ... The current version of the article or section is written like a magazine article instead of the formal tone expected of an encyclopedia. ... D-Link Corporation is a Taiwanese company that manufactures wireless and Ethernet computer networking products for both consumer and SOHO users. ... Look up excel in Wiktionary, the free dictionary. ... The correct title of this article is eVGA. The initial letter is capitalized due to technical restrictions. ... Hauppauge Computer Works, or just Hauppauge (pronounced ) for short, is a United States manufacturer and marketer of electronic video hardware for personal computers. ... Founded in 1986, Leadtek Research, Inc. ... MSI logo used as a BIOS load screen Micro-Star International (MSI) is a Taiwanese computer and components manufacturer. ... NVIDIA Corporation (NASDAQ: NVDA) (pronounced ) is the worlds largest GPU company and a worldwide leader in GPU technologies for video cards, graphics cards, workstations, desktop computers, handhelds and more. ... pcHDTV, Inc. ... Pinnacle Systems, Inc. ... Terratec DMX 6fire TerraTec Electronic GmbH is a German manufacturer of sound cards, webcams and TV tuner cards. ...

External links

• Comparison of various TV tuner cards