Accession Number : ADD003341

Title :   Precision Digital Sampler.

Descriptive Note : Patent Application,

Corporate Author : DEPARTMENT OF THE AIR FORCE WASHINGTON D C

Personal Author(s) : Belton,John P

Report Date : 15 Jan 1976

Pagination or Media Count : 8

Abstract : The patent application describes a precision digital sampler which uses a sample rate clock providing pulses driving a tapped delay line where the total delay equals the PRI of the sample clock. The outputs of the tapped delay line are tied to a buffer register having a storage cell for each delay line tap. The data from the delay line is stored in the register on receipt of a command. In storing the outputs of the delay line, the state of the sample clock is known to the resolution of the taps. A decoder studies the states and the time for locating the leading edge of the sample clock is calculated. The calculated time is used by a control switching circuit to determine which tap should be enabled. The leading edge of the sample clock is thus enable at the resolution of the delay line taps.

Descriptors :   *Samplers, *Patent applications, Digital systems, Waveforms, Pulse generators, Clocks, Delay lines, Buffer storage, Decoders

Subject Categories : Test Facilities, Equipment and Methods

Distribution Statement : APPROVED FOR PUBLIC RELEASE