The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 13, 1976
Filed:
Nov. 08, 1974
Applicant:
Inventor:
Boyd M McClaskey, Flourtown, PA (US);
Assignee:
Narco Scientific Industries, Inc., Fort Washington, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03B / ;
U.S. Cl.
CPC ...
331 25 ; 331 74 ;
Abstract
In a radio synthesizer adapted for use in an aircraft transceiver, an out of lock detector which enables or inhibits output from the synthesizer depending upon whether the synthesizer phase lock loop is in or out of lock. Under normal in lock operating conditions the oscillator output is coupled to the input of an output amplifier. When the loop is out of lock, pulse signals are generated at the loop phase detector and peak integrated to produce a signal which inhibits transmission of the oscillator output to the output amplifier, so that no output is produced while the synthesizer searches for a selected frequency.