Frequency Multiplier Circuit.

reportActive / Technical Report | Accession Number: ADD002173 | Need Help?

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.

Author(s):
Linder, John L.
Author Organization(s):
DEPARTMENT OF THE NAVY WASHINGTON D C
Descriptive Note:
Patent Application,
Pagination:
0020

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release
Distribution Statement:
Government-owned Invention Available For Licensing. Copy Of Application Available Ntis.

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
PAT-APPL-516 540
 Subject Terms
Communities of Interest:
No COI(s) Identified
Descriptor(s):
*Correlators, Patents, Digital systems, Frequency, Coherence, Doppler systems, Satellite tracking systems
Field(s)/Group(s):
Electrical and Electronic Equipment
Keyword(s):
*Patent applications
Report Date:
1974 Oct 21