Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Optotech, Inc. Patents
Assignee:
Optotech, Inc.
Address:
Colorado Springs, CO
No. of patents:
7
Patents:












Patent Number Title Of Patent Date Issued
D296102 Optical disk drive front panel June 7, 1988
4843603 Concentric photodetector arrangement for focusing and tracking June 27, 1989
An optical data storage system includes a laser which is focused on an optical disk by an objective lens. A tracking actuator and a focus actuator move the objective lens about a tracking axis and focus axis respectively. The tracking and focus actuators respond to signals provided b
4791623 File management system for use in an optical data storage system December 13, 1988
A file management system for interfacing a host computer application or operating system to a write once read mostly optical data storage system. The file management system causes a predetermined number of sectors on the optical disk to be reserved for a directory region, and causes file
4736356 Optical disk drive April 5, 1988
An optical disk drive of the type adapted to use an optical disk cartridge formed by an optical disk mounted about a hub within an enclosure. When inserted into the optical disk drive, the cartridge is received and supported by a pan. A control handle for controlling the disk drive can b
4719610 Objective lens velocity control system for use in an optical data storage system January 12, 1988
An objective lens velocity control system for use in an optical data storage system. The optical data storage system includes an optical disk with servo tracks for storing data, an objective lens, and a tracking drive for driving the objective lens along the tracking axis in response
4700056 Objective lens focus initialization system October 13, 1987
A focus initialization system adapted for use with an optical data recording system. Focus initialization is performed while a tracking servo loop is in an open loop mode, and an objective lens is fixedly positioned along a tracking axis. With a focus servo system in an open loop mode, t
4680594 Single beam direct read during write and write protect system for use in an optical data storage July 14, 1987
A single beam direct read during write and write protect system for use in an optical data storage system. The optical data storage system includes a reflective-type optical disk, a laser for producing a beam of radiation to write data onto the optical disk during write operations, and a

 
 
  Recently Added Patents
Anti-proliferative and anti-inflammatory agent combination for treatment of vascular disorders with an implantable medical device
Radio communication device and sequence length adjusting method
Direct file transfer between subscribers of a communications systems
Conductor-mixed active electrode material, electrode structure, rechargeable battery, and manufacturing method of conductor-mixed active electrode material
Method of operating an election ballot printing system
Austenitic stainless steel welding wire and welding structure
Translation system adapted for query translation via a reranking framework
  Randomly Featured Patents
Information-signal recording and reproducing apparatus
Game card and system of authorizing game card
Method of authentication user using server and image forming apparatus using the method
Surgical depth instrument
Dual cone loudspeaker
Degradable network data path transmission scheme
Urine measuring jug
Network-based memory error decoding system and method
Control system with band brake actuator for automatic transmission
Use of strong organic acid polyelectrolyte salts in test means, test device and method for determining the ionic strength or specific gravity of a liquid sample