Dell Products Inc.

Koninklijke Philips Corporation N.V.

Hewlett-packard Company

Dirk Erickson

Charles Robert Weirauch

Christiaan Steenbergen

Jakob Gerrit Nijboer

Robert Albertus Brondijk

Jaconus Petrus Josephus Heemskerk

Thomas Pratt

Hong-Jing Lo

Ed Beeman

Munif Farhan

James Arthur Brewer

Jacobus Petrus Josephus Heemskerk

Dustin Sorenson

Jacomus Petrus Josephus Heemskerk

An optical medium associated with a first type of optical drive laser, such as a blue laser, embeds identification information readable by a second type of optical drive laser, such as a red laser associated with DVD media or an IR laser associated with CD media, in order to reduce the time used by the optical drive to recognize media. An attempt to read the embedded identification information by the second laser that succeeds provides the optical drive with the information to proceed with use of the optical medium using the first laser. An attempt to read the embedded identification information that fails provides the optical drive with the opportunity to detect whether the optical medium is associated with the second laser so that a single spindle kick of the optical medium by the optical drive determines whether the optical medium is associated with either of two types of lasers.

Optical medium recognition system and method with an optical drive having plural lasers

Compatibility information embedded in an optical medium modifies actions allowed by predetermined non-compatible optical disc drives on the optical medium, such as optical disc drives that may suffer damage if certain actions are performed on the optical medium. For instance, a compatibility engine of the optical disc drive applies compatibility information read from an optical medium to determine restrictions to impose on the use of the optical medium, such as restricting the optical disc drive from writing to the optical medium, reading from the optical medium or performing any operations until an update to the optical disc drive firmware is performed either automatically or by display of a compatibility user interface at an information handling system associated with the optical disc drive. In one embodiment, the compatibility information identifies incompatible optical disc drives and firmware versions by unique identifiers.

System and method for embedding optical drive compatibility information in optical media

Expiration information stored on an optical medium is applied to determine an expiration date of the optical medium that provides a predetermined reliability of information archived on the optical medium, such as a predetermined acceptable defect level of the information at the expiration date. An expiration engine associated with an information handling system or optical disc drive determines the expiration date from one or more factors, such as the manufacture date of read-only optical media, the initialization date of recordable optical media, a quality rating associated with a defect growth rate over time of the optical media, and a desired reliability. In one embodiment, the expiration engine writes expiration information to the optical media, such as a date stamp at initialization of a recordable optical medium. Alternatively, an expiration date is stored on an information handling system to provide expiration warnings a predetermined time before the expiration date.

System and method for optical media information storage life tracking

Separate sets of optical medium identification information are embedded in separate aligned layers of the optical medium to allow an optical drive to initiate use of the optical medium with information from both layers. For instance, a first set of identification information is embedded in the data layer of the optical medium and a second set of identification information is embedded on the protective surface layer of the optical medium. The first and second sets of information align so that a mixed signal is provided when the optical medium is initially inserted in the optical drive with the optical drive reading the separate sets of information while the read head is at a single location.

Optical medium aligned information system and method

A receipt printer which includes a light source providing a beam, a light source movement mechanism which moves the beam between a first position and a second position, a laser mechanism which receives the beam when the beam is in the first position and uses the beam to print onto plain paper, and a thermal mechanism that receives the beam when the beam is in the second position and uses the beam to print onto thermal paper is disclosed.

Single head receipt printer

A computer-readable medium device includes apparatus and a computer-readable medium. To a computing device, according to a predetermined command set behavior of the computer-readable medium device, the apparatus outputs a description of first and second features of the computer-readable medium device. The first feature is other than an identification of the computer-readable medium device. The second feature is an indication of whether the computer-readable medium device executes a predetermined write strategy. From the computing device, the apparatus receives a signal. In response to the signal, the apparatus accesses the computer-readable medium, according to the first and second features.

Apparatus for accessing a computer-readable medium device

A system and method for using a photodiode to self-test an optical drive is disclosed. An optical drive includes a light source that emits a light for interacting with optical media. A photodiode placed adjacent the light source detects a portion of the light, such that the photodiode generates an electrical signal proportional to the light that is detected. A circuit is electrically coupled to the photodiode. The circuit receives the electrical signal and, based on the electrical signal, the circuit tests the operability of the optical drive.

System and method for using a photodiode to self-test an optical drive

From a computer-readable medium device, a computing system receives a description of a feature of the computer-readable medium device. In response to the description, the computing system configures a program for managing access by the computing system to the computer-readable medium device. In response to instructions of the configured program, the computing system accesses the computer-readable medium device.

Growing community of inventors

Austin, TX, United States of America

Dirk Erickson