What is the full form of PCM ?

Answer:

Pcm Definition: PCM Full Form: Pulse Code Modulation

Pcm Description:
Here we are sharing two full forms of PCM –

PCM full form in signal transmission

The full form of PCM is Pulse Code Modulation which is like a technique that converts analogue signals into digital communication. Pulse code modulation is one of the most used noise resistant transmission method. Pulse code modulation needs high transmitter bandwidth for transmission of analogue signal to digital signal.
The pulse code modulation provides an important benefit that is the message in the pulse code modulation is a train of pulses of equal height. This means these pulses can be regenerated almost perfectly any given number of times analogue the propagation path. This is because the information or data is not dependent on the accurate height and shape of these pulses.
This type of modulation like PCM normally used in both the telephone network and pubic as well as private.


There are two basic properties of a pulse code modulation which determines the stream fidelity to the original analogue signal and these two properties are –
Sampling rate that is the number of times per second that samples are taken
The bit depth that decides the possible digital values that can be used to describe every sample.

LPCM
LPCM is a specific type of pulse code modulation which means linear pulse code modulation. In linear pulse code modulation the quantization levels are linearly uniform. This is different than the pulse code modulation encodings where quantization levels depends as the function of amplitude which can be as the A-law algorithm or the U-law algorithm.
Pulse code modulation is more common term used instead of LPCM and it is generally used to present data encoded as Linear pulse code modulation.


PCM history
In 1937 the British engineer name Alec Reeves conceived the use of pulse code modulation or PCM for voice communication while he was unaware of his previous work. Working for the international telephone and telegraph in France it was discovered by Alec reeves. Alec described the theory and PCM advantages however there was no practical application. In 1938 Reeves filed for a French patent however his United States’ patent was granted in 1943. Until his US patent Alec started working at the