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.

By submitting you agree to receive email from TechTarget and its partners. If you reside outside of the United States, you consent to having your personal data transferred to and processed in the United States. Privacy

Please create a username to comment.

-ADS BY GOOGLE

File Extensions and File Formats

SearchCompliance

  • smart contract

    A smart contract, also known as a cryptocontract, is a computer program that directly controls the transfer of digital currencies...

  • risk map (risk heat map)

    A risk map, also known as a risk heat map, is a data visualization tool for communicating specific risks an organization faces. A...

  • internal audit (IA)

    An internal audit (IA) is an organizational initiative to monitor and analyze its own business operations in order to determine ...

SearchSecurity

  • evil maid attack

    An evil maid attack is a security exploit that targets a computing device that has been shut down and left unattended.  An evil ...

  • Common Body of Knowledge (CBK)

    In security, Common Body of Knowledge (CBK) is a comprehensive framework of all the relevant subjects a security professional ...

  • rootkit

    A rootkit is a program or, more often, a collection of software tools that gives a threat actor remote access to and control over...

SearchHealthIT

  • value-based healthcare

    Value-based healthcare, also known as value-based care, is a payment model that rewards healthcare providers for providing ...

  • health informatics

    Health informatics is the practice of acquiring, studying and managing health data and applying medical concepts in conjunction ...

  • clinical trial

    A clinical trial, also known as a clinical research study, is a protocol to evaluate the effects and efficacy of experimental ...

SearchDisasterRecovery

  • crisis communication

    Crisis communication is a method of corresponding with people and organizations during a disruptive event to provide them with ...

  • Zerto

    Zerto is a storage software vendor that specializes in enterprise-class business continuity and disaster recovery in virtual and ...

  • crisis management plan (CMP)

    A crisis management plan (CMP) is a document that outlines the processes an organization will use to respond to a critical ...

SearchStorage

  • hard disk

    A hard disk is part of a unit -- often called a disk drive, hard drive or hard disk drive -- that stores and provides relatively ...

  • cache memory

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

  • RAID 10 (RAID 1+0)

    RAID 10, also known as RAID 1+0, is a RAID configuration that combines disk mirroring and disk striping to protect data.

SearchSolidStateStorage

  • hybrid hard disk drive (HDD)

    A hybrid hard disk drive is an electromechanical spinning hard disk that contains some amount of NAND Flash memory.

Close