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:
Feb. 14, 1995
Filed:
Apr. 30, 1993
Vincent L Mirtich, Scottsdale, AZ (US);
John D Hatchett, Scottsdale, AZ (US);
Motorola, Inc., Schaumburg, IL (US);
Abstract
A circuit for alternately providing a first frequency to a receiver stage (20) and a second frequency to a transmitter stage (25) of a transmitter and receive circuit (11). The circuit comprises an oscillator (38), a first switch (33), a second switch (42), and a control circuit (29). The first switch (33) couples information to the oscillator (38) to be transposed on the second frequency during transmission. The second switch (42) couples the oscillator (38) to either the transmitter stage (25) or the receiver stage (20). Prior to changing oscillator frequency the control circuit (29) disables both outputs of the second switch (42). The control circuit (29) alternately tunes the oscillator (38) to the first frequency and enables the second switch (42) such that the oscillator (38) is coupled to the receiver stage (20) and tunes the oscillator (38) to the second frequency, enables the first switch (33), and enables the second switch (42 ) such that the oscillator (38) is coupled to the transmitter stage (25).
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile