Maurice Deloraine
Maurice Deloraine (1898–1991) was a French engineer, executive and technical director of International Telephone and Telegraph. Deloraine was strongly involved in the development of the so-called Huff-Duff. Deloraine and others made an initial patent for delta modulation called "Communication system utilizing constant amplitude pulses of opposite polarities" (French patent issued 1946, US patent filed 1947). References

1898 births
1991 deaths
ESPCI Paris alumni
History of air traffic control
20th-century French inventors