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. 02, 1997
Filed:
Dec. 18, 1995
Jun Aoki, Kawasaki, JP;
Hidenori Saitoh, Kawasaki, JP;
Fujitsu, Ltd., Kawasaki, JP;
Abstract
A compact optical disk drive unit improved in workability of assembly. A first printed wiring board having a signal demodulating circuit, a drive unit control circuit, and a drive circuit for driving a voice coil motor is mounted on an upper surface of a drive base. A first connector is mounted on a lower surface of the first printed wiring board. A moving optical assembly having an objective lens is movably mounted on the drive base, and a fixed optical assembly having a laser drive module and a photodetector is mounted on a lower surface of the drive base. The fixed optical assembly includes a second printed wiring board having a second connector. The first and second printed wiring boards and are connected together through the first and second connectors.