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:
Jun. 25, 1985
Filed:
Oct. 19, 1983
Francis H Stites, Wayland, MA (US);
GTE Laboratories Incorporated, Waltham, MA (US);
Abstract
A transmit/receive switching circuit for radio transceivers includes a switch, which, when closed, provides conduction for two serially connected, polarity opposed diodes. When these diodes conduct, a path is provided for signals from an amplifier, or antenna, to pass through to the receiver. When the switch is open, that path is inoperative so that signals from the antenna (for example, lightning pulses) do not pass through those diodes to the receiver (which passage would cause overloading and damage). Automatic override means, for causing a transistor switch to cease conduction in the event the transistor had been conducting when transmission signals are initiated from the amplifier, include a comparator circuit coupled to compare the magnitude of voltage obtained via a coupling to the transistor switch or to the antenna, against a standard, to cause the transistor switch to cease conduction in the event that the magnitude exceeds the standard.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile