Abstract:
The present embodiments provide methods for writing content to a media that comprise retrieving a first portion of a key structure from the media or a remote server, generating or receiving a second portion of the key structure based on the first portion of the key structure, encrypting content based at least on the second portion of the key structure, producing encrypted content, and writing the encrypted content onto the media. The present embodiments further provide recording media that include a digitally writable surface that is optically readable, a control area optionally comprising a pre-recorded set of keys defining a first portion of a key structure, and a data portion that records non-pre-recorded content protected according to a second portion of the key structure generated according to at least a portion of the first portion of the key structure.
Abstract:
A source image is encoded into a base layer and an enhancement layer. The base layer represents a standard definition portion of the source image and the enhancement layer represents a high-resolution portion of the source image. The base layer is stored on a first data storage track of a storage medium, such as a DVD, and the enhancement layer is stored on a second data storage track of the storage medium. The first data storage track may be a default camera angle track and then second data storage track may be a second camera angle track. The data is formatted such that a standard definition device will not read the enhancement layer data. A high-resolution decoding system decodes the base layer and the enhancement layer simultaneously to generate a high-resolution image.
Abstract:
A process for detecting, and monitoring, changes in the properties of a fluidized bed of particulate solids, especially a fluidized bed of particulate catalytic solids at elevated temperature wherein a low molecular weight hydrocarbon is converted, in the presence of steam and oxygen, to synthesis gas. Measurement is made of the magnitude of differential pressure fluctuations taken at different levels of bed elevation and these are recorded as a standard deviation, or normalized standard deviation, and directly related to particle size changes caused by agglomeration (growth) and/or attrition (size reduction). Operation of the process requires the use of fast response pressure transducers that are located in the bed and connected to an A/D board of a PC which records and accumulates the data for processing, and analysis.
Abstract:
The present invention is directed to an oximeter sensor to measure the oxygen content of a patient's blood. The sensor can include a lead frame having different thicknesses, a sensor housing being molded from a common thermoplastic resin, and rib members in the housing for inhibiting shorting between adjacent traces of the lead frame. The present invention further includes a process for forming the sensor.
Abstract:
A method for manufacturing a heat-sealed neo-natal medical monitoring probe requires a pair of light sources and a light detector to be placed between two layers or conformable material used to implement the probe. The layers are designed to be self-aligning when placed in the assembly press for heat-sealing the perimeter of the probe. The heat-sealing process both protects the light sources and detector from fluids and also functions to precisely position and secure these devices.
Abstract:
A process for the in situ attrition and break up of an agglomerating, or agglomerated catalyst to maintain and control the fluidization characteristics of a bed wherein low molecular weight hydrocarbons, oxygen and steam are contacted with the bed to produce hydrogen and carbon monoxide via both partial oxidation and steam reforming reactions. The feeds are injected into the reaction zone with mechanical energy input sufficient to balance the intrinsic rate of agglomeration by fracturing and breaking apart in situ the agglomerated catalyst to maintain the fluidization characteristics of the bed throughout the cycle of operation.
Abstract:
A process for the production of syn gas (hydrogen and carbon monoxide) by reaction at high temperature between low molecular weight hydrocarbons, steam and oxygen in an impurities-containing refractory lined reaction zone. The lined reaction zone is pretreated with steam, or with steam and a reducing gas, e.g. a mixture of steam and hydrogen to leach out, react with, and transport the impurities, i.e., the reaction products of silica, or silica plus phosphorus or sulfur, or silica plus phosphorus and sulfur, from the reaction zone. Steam alone may be used to leach out, convert the silica to gaseous silicic acid, and remove same from the reaction zone; and then the hydrocarbons, steam and oxygen feeds are introduced into the reaction zone to produce syn gas.
Abstract:
Start-up procedure for FBSG process involving starting up under oxidizing conditions with Al.sub.2 O.sub.3 (no Ni) particles in the bed and the switching to reducing conditions prior to adding Ni/Al.sub.2 O.sub.3 catalyst. This procedure will prevent catalyst particle agglomeration.
Abstract:
A checkout counter having an optical scanning unit located therein and includes a surface portion comprising a scale apparatus which includes a transparent portion enabling scanning beams projected by the optical scanner unit to be transmitted through the scale apparatus for reading a coded label on a merchandise item positioned on the scale apparatus. The scale apparatus generates data signals representing the weight of the merchandise item which are then transmitted to a processor means which also receives data signals from the scanning unit identifying the merchandise item. The processor means will generate the price of the merchandise item using the data signals received. The price of the merchandise item is then displayed on a display unit and printed by a printing unit on a customer's receipt.
Abstract:
A hydrotreating process, particularly a hydroconversion process, wherein a hydrogenation catalyst is contacted with a hydrocarbon or hydrocarbonaceous feed containing 1050.degree. F.+ materials at a preselected high initial temperature and maintained essentially at this temperature throughout an operating run. In accordance with such mode of operation certain advantages are obtained, these including: (1) greater overall conversion of 1050.degree. F.+ to 1050.degree. F.- hydrocarbon products at a given level of hydrodesulfurization, catalyst consumption rate, with the same reactor volume and pressure requirements; (2) greater overall reduction of Con carbon; and (3) improved overall feed metals reduction.