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. 30, 1980
Filed:
Aug. 11, 1978
Applicant:
Inventors:
Guenter Lindstedt, Freiburg, DE;
Wilfried W Gehrig, Freiburg, DE;
Assignee:
ITT Industries, Inc., New York, NY (US);
Primary Examiner:
Int. Cl.
CPC ...
H04Q / ;
U.S. Cl.
CPC ...
3401 / ; 332 / ; 375 23 ;
Abstract
The invention provides remote control methods and arrangements using pulse code modulation for transmission as in infrared remote control arrangements. A primary feature is that only one quartz oscillator is necessary and is used in the receiver part. The receiver measures the first pulse width transmitted and, dependent on that, defines the measure period of a control circuit. A further feature is that each remote control word is preceded by a prepulse and a postpulse with a threefold pulse width.