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:
Dec. 17, 1996
Filed:
Aug. 13, 1993
Applicant:
Inventor:
Robert J Zavrel, Scotts Valley, CA (US);
Assignee:
GEC Plessey Semiconductors, Inc., Scotts Valley, CA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04B / ;
U.S. Cl.
CPC ...
359152 ; 359145 ; 4551512 ; 379 56 ; 34082572 ;
Abstract
A digital, radio-frequency (RF) transceiver is modified by coupling an infra-red (IR) communication subsystem thereto. The subsystem includes an IR transmitter and receiver which may be coupled selectably by a switch to a data signal channel or source in the transceiver. Preferably, the IR receiver includes an inductor and a diode coupled in parallel, such that the IR receiver detects an IR signal, in significant part, by resonating such signal substantially at a detection or RF baseband frequency.