Browse Definitions :
Definition

HD upconverter (high-definition upconverter)

An HD (high-definition) upconverter, also known as a digital television ( DTV ) upconverter, is a device that converts the digital data on a DVD to a format that can be viewed directly on a high-definition television ( HDTV ) receiver without intermediate conversion to an analog signal. The HD upconverter digitally enlarges each frame to HD resolution. Some HD upconverters can also convert the frame rate of 35-mm movies to the frame rate of HDTV, so flickering does not occur when the movie is viewed on the HDTV receiver.

DVD is an optical disc technology with a multi-gigabyte ( GB ) storage capacity on a disc that is the same size as a compact disc ( CD ) of the type used for audio reproduction and computer storage. HDTV is a digital television display technology that provides image quality similar to that of 35-mm movies, and sound quality similar to that of a digital audio CD.

Conventional DVD players are designed for standard-definition TV receivers. Prior to the introduction of HD upconverters, in order to view the contents of a DVD on a digital HDTV receiver it was necessary to convert the image to analog format, then convert it from standard resolution (480 lines per frame) to HD resolution (720 or 1080 lines per frame), and finally convert the HD analog signal back to digital format. The HD upconverter eliminates the intermediate steps, resulting in an image that is relatively free of blurring, aliasing, and conversion noise. Some high-end DVD players have built-in HD upconverters. HDTV broadcasters have expressed interest in HD upconverters, because they facilitate the conversion of standard-definition programs to HD format for transmission to HDTV end users.

Also see HD downconverter , which converts HDTV video to standard-definition video for viewing on convention TV receivers or computer monitors or to record HDTV video on DVDs.

This was last updated in March 2011

Start the conversation

Send me notifications when other members comment.

Please create a username to comment.

-ADS BY GOOGLE

File Extensions and File Formats

Powered by:

SearchCompliance

  • regulatory compliance

    Regulatory compliance is an organization's adherence to laws, regulations, guidelines and specifications relevant to its business...

  • privacy compliance

    Privacy compliance is a company's accordance with established personal information protection guidelines, specifications or ...

  • data governance policy

    A data governance policy is a documented set of guidelines for ensuring that an organization's data and information assets are ...

SearchSecurity

  • asymmetric cryptography (public key cryptography)

    Asymmetric cryptography, also known as public-key cryptography, is a process that uses a pair of related keys -- one public key ...

  • Evil Corp

    Evil Corp is an international cybercrime network that uses malicious software to steal money from its victims' bank accounts.

  • Plundervolt

    Plundervolt is a method of hacking that involves depriving an Intel chip of power so that processing errors occur.

SearchHealthIT

  • telemedicine (telehealth)

    Telemedicine is the remote delivery of healthcare services, such as health assessments or consultations, over the ...

  • Project Nightingale

    Project Nightingale is a controversial partnership between Google and Ascension, the second largest health system in the United ...

  • medical practice management (MPM) software

    Medical practice management (MPM) software is a collection of computerized services used by healthcare professionals and ...

SearchDisasterRecovery

SearchStorage

  • M.2 SSD

    An M.2 SSD is a solid-state drive (SSD) that conforms to a computer industry specification written for internally mounted storage...

  • RAID (redundant array of independent disks)

    RAID (redundant array of independent disks) is a way of storing the same data in different places on multiple hard disks or ...

  • cache memory

    Cache memory, also called CPU memory, is high-speed static random access memory (SRAM) that a computer microprocessor can access ...

Close