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:
Apr. 11, 1989
Filed:
Aug. 05, 1986
Applicant:
Inventors:
Kazuhiko Naruse, Nabari, JP;
Akira Kataoka, Sennan, JP;
Masayasu Hirano, Nishinomiya, JP;
Naoya Takata, Amagasaki, JP;
Assignee:
Minolta Camera Kabushiki Kaisha, Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04B / ;
U.S. Cl.
CPC ...
455617 ; 2502 / ; 324429 ; 340636 ; 34081532 ; 35821315 ; 455619 ;
Abstract
An improved optical signal receiving apparatus useful in optical communication is provided. Peripheral light can be measured and compared to determine if its intensity is above a certain predetermined level. The apparatus can display an indication when the measured intensity is over the predetermined level, such as through an emission at a predetermined wavelength.