** Differential PSK ( DPSK )

** Differential QPSK ( DQPSK )

** Differential nonlinearity ( DNL ) shows how much two adjacent code analog values deviate from the ideal 1 LSB step.

** Differential of a function, represents a change in the linearization of a function

** Differential ( infinitesimal ) ( e. g. dx, dy, dt etc.

** Differential topology, in multivariable calculus, the differential of a smooth map between Euclidean spaces or differentiable manifolds is the approximating linear map between the tangent spaces, called pushforward ( differential )

** Differential operator

** Linear, Ordinary Differential Equations, of the first and second order

** Thermal Differential Analyzer

** Differential geometry stubs:

** Differential: Pearless 100 series.

** Differential Detection

** MR-1000-1bit 5. 6448 MHz / 1bit 2. 8824 MHz ( DSD )/ 24bit 192 kHz ( PCM )

** OggPCM-an encapsulation of PCM audio data inside the Ogg container format

** A lossless " PCM macroblock " representation mode in which video data samples are represented directly, allowing perfect representation of specific regions and allowing a strict limit to be placed on the quantity of coded data for each macroblock.

** An enhanced lossless macroblock representation mode allowing perfect representation of specific regions while ordinarily using substantially fewer bits than the PCM mode.

** RF5c68 and RF5c164 ( Sega CD PCM )

** Sega PCM and Sega 32x PWM

** Pulse-code modulation ( PCM )

** WAV container, uncompressed PCM

** Adaptive DPCM ( ADPCM )

Differential pulse-code modulation ( DPCM ) is a signal encoder that uses the baseline of pulse-code modulation ( PCM ) but adds some functionalities based on the prediction of the samples of the signal.

Jayant, " Digital coding of speech waveforms: PCM, DPCM, and DM quantizers ," Proc.