Frequency Multiplier Circuit.
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.
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 21, 1974
- Accession Number
- ADD002173
Entities
People
- John L. Linder
Organizations
- United States Department of the Navy