| 单词 | pulse code modulation |
| 释义 | > as lemmaspulse code modulation pulse code modulation n. Telecommunications a form of pulse modulation in which the actual signal amplitude at successive moments is approximated by the nearest in value of a set of permitted amplitudes, which is then represented by a short sequence of pulses in accordance with a binary code; abbreviated PCM. ΘΚΠ society > communication > telecommunication > [noun] > signal > modulation choke control1909 modulation1919 frequency modulation1922 pulse modulation1929 phase modulation1930 undermodulation1940 pulse time modulation1944 pulse position modulation1945 PCM1947 pulse amplitude modulation1947 pulse code modulation1947 pulse frequency modulation1950 pulse width modulation1953 pulse duration modulation1956 1947 Bell Syst. Techn. Jrnl. 26 395 This paper describes an experiment in transmitting speech by PCM, or pulse code modulation. 1967 Times 7 Feb. 9/3 The Post Office is to start work on the installation..of the world's first pulse code modulation exchange. 2002 P. Miles Robot Sumo x. 193 To further improve the reliability of FM radios, an advanced signal transmission method known as pulse code modulation (PCM) can be used. < as lemmas |
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