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:
Jun. 26, 2001
Filed:
Jan. 06, 1999
Applicant:
Inventor:
Michel G. Laberge, Bowen Island, CA;
Assignee:
Creo Products Inc., Burnaby, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41J 2/45 ; B41J 2/455 ;
U.S. Cl.
CPC ...
B41J 2/45 ; B41J 2/455 ;
Abstract
A method and apparatus for a fault tolerant recording system using a pair of laser diode arrays is disclosed. Two monolithic laser diode arrays made of individually addressable diodes are used to record parallel tracks on a recording surface. A pair diodes, (one diode from each array) are assigned to each track, but only one diode (the primary diode) is activated. In the case where the primary diode fails, the secondary diode is activated. Digital delays are employed to synchronize the data from the two diode arrays in order to align the written marks on the recording surface.