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. 02, 1978
Filed:
Dec. 21, 1976
Applicant:
Inventors:
Yasuo Kato, Tokyo, JA;
Yoshio Matsuo, Tokyo, JA;
Assignee:
Nippon Electric Co., Ltd., Tokyo, JA;
Primary Examiner:
Int. Cl.
CPC ...
H04B / ;
U.S. Cl.
CPC ...
325 24 ; 343180 ;
Abstract
A compact transmitter-receiver circuit particularly adapted for short-distance mobile communication includes a pair of parallel nonlinear circuits, first and second hybrid circuits connected to the pair of nonlinear circuits on their high- and low-frequency sides, respectively, and a radio-frequency generator and a driver circuit connected to the respective hybrid circuits. One of the four terminals of the first hybrid circuit serves as a common input-output terminal of the transmitter-receiver circuit without necessitating any particular means conventionally required for separation between transmission and reception signals.