Quadrature amplitude modulation (QAM)

Quadrature modulation in which the two carriers are amplitude modulated. 2. In analog communications, the representation (i.e., transmission) of digital information by encoding ...

quadrature amplitude modulation (QAM)

Consumer electronics; Home theatre system

A digital modulation method in which the value of a symbol consisting of multiple bits is represented by amplitude and phase states of a carrier. 64 or 256 QAM is used for ...

high-pass filter

Semiconductors; Test equipment

(1) A math operation that emphasizes details in an image. (2) A circuit that attenuates low-frequency components in an analog signal.

bipolar

Semiconductors; Test equipment

(1) A signal that includes positive and negative values. (2) A type of semiconductor.

ground

Semiconductors; Test equipment

(1) An electrically neutral wire that has the same potential as the surrounding earth. Normally, a non-current-carrying circuit intended for safety. (2) A common reference point ...

low-pass filter

Semiconductors; Test equipment

(1) An operation that blurs details in an image. (2) A circuit that attenuates the high-frequency components in an analog signal.

electromagnetic compatibility (EMC)

Semiconductors; Test equipment

(1) The ability of electronic equipment to operate in an intended electromagnetic environment without degradation caused by interference. (2) The ability of equipment to operate ...

pixel

Semiconductors; Test equipment

(1) The fundamental picture element in a digital image. (2) The coordinate unit used to define the horizontal location of a pixel in an image. ("Pixel" is an acronym for "picture ...