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:
May. 29, 1984
Filed:
Aug. 02, 1982
Ronald H Chapman, Wheaton, IL (US);
Andrew F Peterson, Schaumburg, IL (US);
Motorola Inc., Schaumburg, IL (US);
Abstract
An improved phase locked loop receiver for use in a simulcast transmission system is disclosed whereby the phase locked loop receiver is used as a means to distribute a common reference frequency to all of the transmitters in a simulcast system. By phase locking the link receivers at each of the simulcast transmitters to the carrier of the link transmitter, a common reference is obtained. This allows each of the synthesized simulcast transmitters to be phase locked to a common reference. The Phase Locked Receiver (PLR) uses a reference frequency derived from the receiver IF frequency. The injection oscillator of the receiver is phase locked to this reference.