32 results about "Writing environment" patented technology

Described herein are embodiments for utilizing stored write environment conditions for read error recovery. A tape drive measures read environment conditions as a result of receiving a read command to read data from a portion of tape and compares the read environment conditions to the write environment conditions stored for that portion of tape. If the read environment conditions are not within the predetermined range of the write environment conditions, then the handling of the tape is altered to improve read element placement on the tape by accounting for expansion and contraction of the tape based on the stored write environment conditions. The handling of the tape is altered by at least one of increasing or decreasing the tension of the tape, offsetting the tape head up or down laterally with respect to the tape, and slowing down the movement of tape across the tape head.

It is an object of the present invention to provide a method of and an apparatus for controlling writing power to an optical medium to perform running optimum power control (OPC). A deficiency in dynamic ranges of monitored writing power and a write radio frequency (RF) signal, which is difficult to compensate in hardware, is compensated for in firmware (or software) and a normalized write RF signal having a constant linear characteristic is obtained to control the writing power of a laser diode while an optical drive is in a write mode, thereby attaining an optimum writing characteristic even if the writing environment of the optical drive changes. The method comprises detecting a first normalized write signal having a linear characteristic with respect to the corresponding writing power by using the predetermined condition values, wherein the predetermined condition values are set taking into account the dynamic ranges of monitored writing power and a write RF signal, deficiency in the dynamic ranges not being compensated for in hardware in the optical drive, and setting the first normalized write signal as a reference signal; detecting a second normalized write signal having a linear characteristic with respect to the corresponding writing power using the predetermined condition values, while writing data to an user area on the optical medium; and controlling the writing power of the light source based on the result of determining whether the second normalized write signal is approximate in value to a value of the first normalized write signal.

An improved full screen view user interface is provided that presents a user interface-light reading mode for reading a document, and a user interface-light editing mode for editing or authoring a document. A full screen view reading mode provides a full page reading environment that simulates real world effects, such as page curls, to enhance a reading experience that is intended to be focused on the task of reading a document. A full screen editing mode provides a full page editing environment that, upon demand, reveals selectable controls that are relevant to editing or authoring a document to provide a simplified, non-distracting writing environment.