Accession Number:
ADD002173
Title:
Frequency Multiplier Circuit.
Descriptive Note:
Patent Application,
Corporate Author:
DEPARTMENT OF THE NAVY WASHINGTON D C
Personal Author(s):
Report Date:
1974-10-21
Pagination or Media Count:
20.0
Abstract:
The patent application relates to a digital frequency correlator circuit for comparing the frequencies of a plurality of a-c signals to determine if they are coherent within a predetermined number of cycles. The a-c signals are converted into digital numbers representing their frequencies. The digital numbers are subtracted and the difference is compared, utilizing an exclusive-or circuit, with a predetermined number of cycles. If the difference is greater than the predetermined number of cycles, a logic 0 is outputted. If the difference is equal to or less than the predetermined number of cycles, a logic 1 is outputted.
Descriptors:
Subject Categories:
- Electrical and Electronic Equipment