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:
Oct. 25, 1994
Filed:
Feb. 23, 1993
Applicant:
Inventors:
Charles A Laszlo, Vancouver, CA;
Paul L Geyer, Burnaby, CA;
Assignee:
Assistive Listening Device Systems, Inc., British Columbia, CA;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04B / ;
U.S. Cl.
CPC ...
359180 ; 359142 ; 359149 ;
Abstract
An infrared signal transmitter which has a signal generator enclosed in a housing, and a transmitter head which is removably attached thereto. The transmitter head includes a plurality of infrared transmitting elements arrayed in selected patterns to provide multidirectional transmission of infrared signals to a waiting receiver. The transmitter head and housing are provided with mating plug-in connectors permitting the transmitting head to be easily changed to provide selected transmitting arrays or patterns. The transmitter has its own power supply to be self-contained and portable.