Abstract: An optical pickup device has a single light beam path for common use in treating or passing either of a plurality of kinds of light beams for respective recording densities and/or recording-medium-thicknesses different from each other, in other words, at least one or either of the plurality of kinds of light beams is introduced into the common single light beam path which may includes a single quarter-wave plate and/or single collimator and/or single objective.
Type:
Grant
Filed:
September 26, 1997
Date of Patent:
July 3, 2001
Assignee:
Matsushita Electric Industrial Co., Ltd.
Abstract: A system for managing a plurality of applications and communications therebetween in a distributed telecommunications switch is provided. The distributed telecommunications switch includes a service unit and at least one delivery unit. The system includes a services element residing in the service unit operable to provide a plurality of services to the plurality of applications, and an application procedure interface residing in the service unit operable to serve as an interface between the plurality of applications and the services element.
Type:
Grant
Filed:
October 7, 1997
Date of Patent:
September 12, 2000
Assignee:
Alcatel USA Sourcing, L.P.
Inventors:
Steve M. Pullen, Alfred J. Blanchard, Donald W. Miller, Jr.
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