Recovering and relocating unreliable disk sectors when encountering disk drive read errors

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The International Business Machines Corporation patent solves the following problem:

The present invention relates in general to data storage on disk to keep the media and in particular the error handling and recovery for disk storage media. Even more particularly, the present invention relates to relocating reliable disk sector when reading the wrong received while reading the data.

Our analysis of this patent is as follows:

International Business Machines Corporation’s patent US 6427215 B2 deals with Recovering and relocating unreliable disk sectors when encountering disk drive read errors.
Where a number n the book attempts required to successfully read a data sector, with the first n-1 test return a disk drive read errors, the number of trials required compared to a predefined selected threshold showing that the sector can not be trusted and is in danger of being completely unrecoverable. If the threshold number of trials is not exceeded, the sector still believe in good and no further action should be taken. If the threshold number of tests equal to or greater, however, unreliable or failing sector moved to a reserve replacement sector, with the obtained data written to the replacement sector. The data fail to be remapped sectors vicarious sector, to become a fully functional replacement for the failing sector for future reads and writes while preserving the original user data. Data in a failing sector as laid before the sector can fully returned.

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Airborne gas phase sorption enhancement using ultraviolet light

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The Steril-Aire, Usa, Inc. patent solves the following problem:

The prior art provides for various devices sorption independent, without enhancements. Stand-alone sorption devices adsorb flying gas of contamination. However, the sorption material must be active or thrown when spent. If not, the spent sorbant exchanged for used but active material.

Our analysis of this patent is as follows:

Steril-Aire, Usa, Inc.’s patent US 6423882 B1 deals with Airborne gas phase sorption enhancement using ultraviolet light.
A method and apparatus that expressed in gas phase sorption where a sorption device with a mouth given in combination with a source of UV light. The UV light is directed at the head of sorption devices for the purpose of destroying the organic gas of compounds and the removal of residue, and OH radicals are formed in UV light mangrove inlet sorption devices to destroy the organic gas of compounds cast and mangroves at the mouth of the sorption device. The sorption devices activated in situ, the single pass efficiency sorption devices improve, and the mechanical useable service life of sorption devices improve.

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Method and system for dynamic location-based zone assignment for a wireless communication network

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The Signalsoft Corp. patent solves the following problem:

Wireless communication network operating communicate information, such as voice signals, pictures, electronic files or data, video signal, and the like, and / or from a wireless communication device using radio waves . For example, the wireless communication network may involve a communication system using Analog, digital cellular, or PCS communication system, a satellite communication system, a two-way radio communication systems, a paging system, and the like.

Our analysis of this patent is as follows:

Signalsoft Corp.’s patent US 6424840 B1 deals with Method and system for dynamic location-based zone assignment for a wireless communication network.
A method for dynamic location-based zone assignment for a wireless communication network given. The methods used in the location of the wireless communication device relative to a user in to a number of network zones in wireless communication network. The network zones and their respective coverage areas to change from time-to-time. method involves receiving the location of the wireless communication device user and access to a region on the interpretation of the user, where the sense region includes at least one operating zone. The region in the sense translates into an existing network place. The location of the wireless communication device the user compared to the existing network site definition to find the wireless communication device user relative to the operating zones. A record then assigned based operating zone wireless communication device the user is located.

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Monitoring redundant control buses to provide a high availability local area network for a telecommunications device

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The Cisco Technology, Inc. patent solves the following problem:

Many telecommunications devices include backplanes for transmitting digital information among the components of the device. For example, a telecommunications switch system may include a backplane for transmitting digital data representing the voice signals between cards associated with incoming and outgoing ports. Usually, such a system also includes a mechanism to allow these cards to communicate with one another and receive commands, controls, and administrative information from the other components during system operation . Successful operation of the system many times depends greatly on the ability of these communication mechanisms to continually meet the stringent availability, bandwidth, flexibility, and other requirements placed on the system.

Our analysis of this patent is as follows:

Cisco Technology, Inc.’s patent US 6425009 B1 deals with Monitoring redundant control buses to provide a high availability local area network for a telecommunications device.
A telecommunications device includes a local network with redundant first and second bus area. Multiple cards with the first and second bus communication using the first bus. A first monitor with first and second bus to detect a failure in the bus and communicate a message indicating the failure to use a data network. The second monitor also with the first and second bus to detect the failure of the first bus, and can also communicate with a message indicating the failure to use the data network. The first monitor and the second monitor to receive messages from each other and cause the cards to communicate using the second bus. In a more particular image, the second monitor pass a test signal using the first bus in response to messages from the first monitor.

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Method and apparatus for analyzing events in a telecommunications system

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The Applied Digital Access, Inc. patent solves the following problem:

This invention relates to telecommunications systems, and particularly to a method and apparatus to identify and determine the point of origin in the event of a telecommunications system.

Our analysis of this patent is as follows:

Applied Digital Access, Inc.’s patent US 6421323 B1 deals with Method and apparatus for analyzing events in a telecommunications system.
A method and apparatus for automated sectionalization a DS1 / DS3 data path based on information received in a single place along the way. A test device and monitor located on a boundary point between a LEC and an IEC. A Remote Module is located at a point on the border between the LEC and the CPE. The test and monitor device is fully ANSI compatible. The information received is processed in a three step process to create a Sectionalizer Report. In preparing Sectionalizer Report, the information output from a filter used to determine where particular Events from.

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Method and apparatus for identifying, classifying, or quantifying DNA sequences in a sample without sequencing

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The Curagen Corporation patent solves the following problem:

Over the past ten years, as the biological and genomic research changes our understanding of the molecular basis of life, it became clearer that the temporal and spatial expression of the gene is responsible for all process life processes occurring in both health and disease. Science progressed from an understanding of how genetic defects cause the traditional recognized inherited disorder, such as thalassemias, to a realization of the importance of the interaction of many genetic defects along with environmental factors in etiology much more complex disorders, such as cancer. In the case of cancer, current scientific evidence showed that the key causative role in the altered expression of many defects of certain basic gene. The other complex diseases that have similar etiology. So the more complete and reliable a correlation can be established between the gene expression and thus the health or disease, the better the disease can be identified, diagnosed and treated.

Our analysis of this patent is as follows:

Curagen Corporation’s patent US 6418382 B2 deals with Method and apparatus for identifying, classifying, or quantifying DNA sequences in a sample without sequencing.
It provides creation methods that biologically derived DNA sequences in a mixed sample or a put a file clone can be determined and classified as no series. The methods make use of presence information to carefully selected target subsequences, often in height from 4 to 8 base pairs, and preferably the length between the target subsequences a file sample DNA with the DNA sequence database containing the list of the order is likely present in the sample to determine a sample. The method using restriction endonucleases to their target subsequences and cut the sample. Then carefully selected recognition moieties are ligated to cut pieces, the fragments amplified, and the experimental observations made. Polymerase chain reaction (PCR) is the method of profit. Another picture of the produce used in the presence or absence of a well-chosen target subsequences one clone with the DNA sequence databases to determine the clone. Computer implemented methods given in the analysis of experimental results and to determine the sample results in question and to carefully choose target subsequences that the experiment will give a maximum amount of information.

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Method for modulating process mediated by farnesoid activated receptors

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The The Salk Institute For Biological Studies, , Ligand Pharmaceuticals, Inc., , The Government Of The United States Of America patent solves the following problem:

Molecular cloning studies have shown that the receptor for steroids, retinoids, vitamin D and thyroid hormone consists of a variety of regulatory protein that is structurally and functionally related (see Evans, Science 240: 889-895 (1988) ). Known as nuclear receptors, these proteins bind Cis-acting elements in the promoters of their target genes and modulate gene expression in response to its ligand, such as a hormone.

Our analysis of this patent is as follows:

The Salk Institute For Biological Studies, , Ligand Pharmaceuticals, Inc., , The Government Of The United States Of America’s patent US 6416957 B1 deals with Method for modulating process mediated by farnesoid activated receptors.
Farnesyl pyrophosphate, the metabolically active form of farnesol, is a key precursor in the synthesis of cholesterol, carotenoids, steroid hormones, bile acids and other molecules involved in cellular growth and metabolism. A nuclear receptor known as transcriptionally activated by farnesol and related molecules. This novel signaling pathway may be modulated through the use of key metabolic intermediates (or analogs and / or derivatives thereof) as transcriptional regulatory signal.

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Circuit technique for high speed low power data transfer bus

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The Broadcom Corporation patent solves the following problem:

The present invention relates to memory devices, in particular, semiconductor memory devices, and more particularly, scalable, power-efficient semiconductor memory devices.

Our analysis of this patent is as follows:

Broadcom Corporation’s patent US 6417697 B2 deals with Circuit technique for high speed low power data transfer bus.
A high speed low power data transfer bus circuit that reduces the bus power consumption to execute a limited, controlled voltage swing associated data bus. In one image, an inverter with a pMOS pass transistor and a nMOS discharge transistor, and the combination with a data bus. The discharge transistor and pass transistor can program to provide a preselected bus operational characteristics. In another picture, many nMOS fulfill transistors can be combined with data bus through the pass transistor, with each of the discharge transistors that selectively programs provide more preselected bus operational characteristics, multiple, automatic discharge transistors , thereby selectably execute symbolic and equity multilevel signal to data bus. In another picture, a bidirectional data transfer circuit bus couple the two busses that data while imposing a limited, controlled voltage swing during the transfer. A couple on a first data bus and a second bus data with cross-linked inverters. Interposed between the inverters, and the joined-bus, is a respective pMOS pass transistor. Also, with between each input node and the ground, is a signal carrying transistor, preferably in nMOS, which facilitates data transfer between buses. Each of the inverters with a charge / discharge circuit, preferably using a common clock signal.

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Limited swing driver circuit

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The Broadcom Corporation patent solves the following problem:

The present invention relates to memory devices, in particular, semiconductor memory devices, and more particularly, scalable, power-efficient semiconductor memory devices.

Our analysis of this patent is as follows:

Broadcom Corporation’s patent US 6414899 B2 deals with Limited swing driver circuit.
A limited swing driver with a pass transistor coupled between a memory cell and an associated BitLine; an inverter, the output with the gate of the pass transistor, and input it with the memory cell. A memorial node formed by coupling inverter input and the memory cells forming a memory node. driver also includes a discharge transistor coupled between the memory node and the ground. The discharge transistor driven by an input to keep transistor gate. It is preferred that the discharge transistor that program to create a limited voltage swing memory node. It is desirable that the limited voltage swing less than 350 MV, and it is better that the limited voltage swing between 300 mV and 200 mV. Moreover, the limited voltage swing driver may include a tri-state output can isolate memory node from BitLine, especially if BitLine is a shared or multiplexed BitLine; and a self-reset circuit resetting the driver to a predetermined signal conditions.

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