Accession Number : ADD008041

Title :   Frequency Shift Keying Data Bus Communication System.

Descriptive Note : Patent Application,

Corporate Author : DEPARTMENT OF THE AIR FORCE WASHINGTON DC

Personal Author(s) : Leahy,William F

Report Date : 29 Oct 1980

Pagination or Media Count : 11

Abstract : A data bus system utilizing a frequency shift keying transmitter and receiver to a multiple channel data bus communication system. A transmission line is utilized to connect the transmitter unit to the receiver unit. The frequency shift keying transmitter unit utilizes binary logic levels which drive a voltage controlled oscillator to generate different frequencies for different logic levels and a zero crossover which is used to avoid generation of harmonics during transmission. (Author)

Descriptors :   *Patent applications, *Frequency shift keyers, *Bus conductors, *Data transmission systems, Communication equipment, Digital systems, Voltage controlled oscillators, Harmonics, Transmission lines, Binary processors, Computer logic, Channels, Multiple operation, Schematic diagrams, Waveforms

Subject Categories : Non-radio Communications

Distribution Statement : APPROVED FOR PUBLIC RELEASE