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:
Jan. 13, 1998
Filed:
Apr. 22, 1996
Tadashi Ikeuchi, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
An optical transmitter may obtain suitable optical output waveform within a wide temperature range from a semiconductor laser diode with an APC free system. The optical transmitter may be composed of a semiconductor laser diode, a driver circuit operatively connected to the semiconductor laser diode for supplying a bias current and a pulse current corresponding to the level of an input signal to the semiconductor laser diode, a bias current controller operatively connected to the driver circuit for controlling the level of the bias current, a pulse current controller operatively connected to the driver circuit for controlling the level of the pulse current, and a duty variable circuit operatively connected to the driver circuit for setting the duty of the input signal to make the duty of an optical output from the semiconductor laser diode more than 100% at an initial adjustment.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile