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| Number | Title | Issue Date |
| 7274671 | Bitwise adaptive encoding using prefix prediction A technique is presented for compressing data which leverages the frequency of an escape symbol for better compression. The prefix of a data string is evaluated and the probability of all characters that might succeed it is predicted in tabular form. Symbols are des... | 09/25/2007 |
| 6377978 | Dynamic downloading of hypertext electronic mail messages The invention provides a method and system for dynamic downloading of hypertext electronic mail messages. The system includes a mail server for receiving electronic mail messages and their headers, and a mail client for downloading electronic mail message... | 04/23/2002 |
| 6343984 | Laminar flow duct cooling system The invention provides a redundant cooling system with abatement of noise from cooling fans used primarily in computer equipment and other boxes housing electronic equipment. Typically either the computer system or box housing electronic components has tw... | 02/05/2002 |
| 6326970 | TV centric layout Displaying a hypermedia document such as an HTML web page on a television display without using horizontal scroll bars, while preserving the look and feel of the web page as originally contemplated by the web page designer. When possible, each web page is... | 12/04/2001 |
| 6317844 | File server storage arrangement The invention provides a storage system that is highly available even in the face of component failures in the storage system, and a method for operating that storage system. A first and a second file server each includes a file server request log for sto... | 11/13/2001 |
| 6289356 | Write anywhere file-system layout The present invention provides a method for keeping a file system in a consistent state and for creating read-only copies of a file system. Changes to the file system are tightly controlled. The file system progresses from one self-consistent state to ano... | 09/11/2001 |
| 6279011 | Backup and restore for heterogeneous file server environment The invention provides a file server that provides for backup and restore of files in a heterogeneous file server environment. Metadata associated with each file by each model or protocol is preserved across backup and restore operations. The file server ... | 08/21/2001 |
| 6275263 | Multi-function USB video capture chip using bufferless data compression A method and system for capturing live video signal data using bufferless data compression is disclosed. Live video signal data is vertically scaled. A 4:2:2 to 4:2:0 color format conversion is performed simultaneous with the vertical scaling step. A one-... | 08/14/2001 |
| 6275269 | Method and apparatus for automatic calibration of analog video chromakey mixer An improved technique for mixing picture signals directed at a monitor screen. Two analog video signals (such as an analog VGA input and an analog RGB signal produced in response to a stored digital still or moving image) may be multiplexed in analog form... | 08/14/2001 |
| 6212183 | Multiple parallel packet routing lookup The invention provides a method and system for routing information lookup for packets using a routing protocol such as IP. Routing information which has been determined responsive to the packet header, which includes a destination address, a source addres... | 04/03/2001 |
| 6184936 | Multi-function USB capture chip using bufferless data compression A method and system for capturing live video signal data using bufferless data compression is disclosed. Live video signal data is vertically scaled. A 4:2:2 to 4:2:0 color format conversion is performed simultaneous with the vertical scaling step. A one-... | 02/06/2001 |
| 6175880 | Sound board emulation using digital signal processor An improved audio-output device coupleable to a computer system, in which a DSP operating under software control emulates a common command interface. The command interface has a set of registers that are made available to the CPU for reading and writing, ... | 01/16/2001 |
| 6157641 | Multiprotocol packet recognition and switching The invention provides a method and system for identifying header information in a packet header, and for switching (and otherwise operating) on the packet in response thereto. A first set of header information recognizers operate in parallel on selected ... | 12/05/2000 |
| 6147996 | Pipelined multiple issue packet switch A pipelined multiple issue architecture for a link layer or protocol layer packet switch, which processes packets independently and asynchronously, but reorders them into their original order, thus preserving the original incoming packet order. Each stage... | 11/14/2000 |
| 6138126 | Method for allocating files in a file system integrated with a raid disk sub-system A method is disclosed for integrating a file system with a RAID array that exports precise information about the arrangement of data blocks in the RAID subsystem. The file system examines this information and uses it to optimize the location of blocks as ... | 10/24/2000 |
| 6128701 | Adaptive and predictive cache refresh policy The invention provides a system and system for automatically refreshing documents in a cache, so that each particular document is refreshed no more often and no less often than needed. For each document, the cache estimates a probability distribution of t... | 10/03/2000 |
| 6128726 | Accurate high speed digital signal processor An improved digital signal processor, in which arithmetic multiply-add instructions are performed faster with substantial accuracy. The digital signal processor performs multiply-add instructions with look-ahead rounding, so that rounding after repeated a... | 10/03/2000 |
| 6124897 | Method and apparatus for automatic calibration of analog video chromakey mixer An improved technique for mixing picture signals directed at a monitor screen. Two analog video signals (such as an analog VGA input and an analog RGB signal produced in response to a stored digital still or moving image) may be multiplexed in analog form... | 09/26/2000 |
| 6122272 | Call size feedback on PNNI operation The invention provides a method and system for selecting routes in a switching network with resource reservation, such as an ATM network. A set of routes are periodically precomputed, so that routes are known between any sending node and any receiving nod... | 09/19/2000 |
| 6119244 | Coordinating persistent status information with multiple file servers The invention provides a storage system, and a method for operating a storage system, that provides for relatively rapid and reliable takeover among a plurality of independent file servers. Each file server maintains a reliable communication path to the o... | 09/12/2000 |
| 6111877 | Load sharing across flows The invention provides a system and system for sharing packet traffic load among a plurality of possible paths. Each packet is associated with a flow, and a hash value is determined for each flow, so as to distribute the sequence of packets into a set of ... | 08/29/2000 |
| 6101115 | CAM match line precharge The invention provides a method and system for improved CAM match line precharge, in which the amount of power consumed by match line precharge and discharge is significantly reduced. An independent match precharge voltage is introduced to the CAM, which ... | 08/08/2000 |
| 6097718 | Snapshot routing with route aging A method and system for maintaining and updating routing information in a packet switching network for a set of quasidynamic routes, in which intermittent routing updates are permitted, so that routes are no longer "always static" or "always dynamic", but... | 08/01/2000 |
| 6084909 | Method of encoding a stream of motion picture data Methods of encoding and decoding data in variable-length data structures, such as that found in motion picture data. Data in an MPEG standard format may be encoded in a format which is not easily subject to unauthorized copying, but which may be easily di... | 07/04/2000 |
| 6081766 | Machine-learning approach to modeling biological activity for molecular design and to modeling other characteristics Explicit representation of molecular shape of molecules is combined with neural network learning methods to provide models with high predictive ability that generalize to different chemical classes where structurally diverse molecules exhibiting similar s... | 06/27/2000 |
| 6077257 | Ablation of rectal and other internal body structures The invention provides an apparatus and system for ablation of body structures or tissue in the region of the rectum. A catheter is inserted into the rectum, and an electrode is disposed thereon for emitting energy. The environment for an ablation region ... | 06/20/2000 |
| 6078590 | Hierarchical routing knowledge for multicast packet routing The invention provides a method and system for multicast packet routing, in which only selected routers in a network subset (in a preferred embodiment, those routers on the border of the domain) maintain routing information external to the network subset,... | 06/20/2000 |
| 6055364 | Content-based filtering of multicast information The invention provides a method and system for content-based filtering of multicast information. A set of sources (S) which desire to distribute potentially large numbers of categories of differing information each associates a content descriptor (CD) wit... | 04/25/2000 |
| 6038570 | Method for allocating files in a file system integrated with a RAID disk sub-system The present invention is a method for integrating a file system with a RAID array that exports precise information about the arrangement of data blocks in the RAID subsystem. The file system examines this information and uses it to optimize the location o... | 03/14/2000 |
| 6038134 | Modular capacitor/inductor structure A structure for a capacitor or inductor. The structure includes a set of modular elements which stack together in a rectilinear stack and are electrically coupled at known coupling points. The modular elements may be combined (by connection at the couplin... | 03/14/2000 |
| 6035406 | Plurality-factor security system The invention provides a method and system for simultaneously authenticating a user using two or more factors, such as both a password and a physical token or both a password and biometric information. The user presents a physical token including a storag... | 03/07/2000 |
| 6035105 | Multiple VLAN architecture system A system in which a single VLAN architecture spans multiple VLAN transport protocols and technologies, including a method and system in which multiple different VLANs may be combined in a single enterprise network. Each LAN-switch in the sytem identifies ... | 03/07/2000 |
| 6032150 | Secure graphical objects in web documents with a program applet placed to present further information upon selected conditions The invention provides a method and system for presenting infromation in a web document using a program applet to restrict further copying or redistribution. The web document includes a first region in which a graphical element or other information is dis... | 02/29/2000 |
| 6013987 | Moving lights simulator The invention provides a method and system for simulating moving lights using nonmoving lights. A row or column of lights, such as LCDs or LEDs, are each controlled by a processor so as to switch each light at a relatively rapid rate, sufficiently rapid s... | 01/11/2000 |
| 5995947 | Interactive mortgage and loan information and real-time trading system The invention provides a method and system for trading loans in real time by making loan applications, such as home mortgage loan applications, and placing them up for bid by a plurality of potential lenders. A transaction server maintains a database of p... | 11/30/1999 |
| 5991799 | Information retrieval system using an internet multiplexer to focus user selection The invention provides a method and system for receiving incoming information from multiple information sources, both interactive and passive, and for engagingly presenting that information to a recipient on a presentation interface. The system includes a... | 11/23/1999 |
| 5963962 | Write anywhere file-system layout The present invention provides a method for keeping a file system in a consistent state and for creating read-only copies of a file system. Changes to the file system are tightly controlled. The file system progresses from one self-consistent state to ano... | 10/05/1999 |
| 5950225 | Fly-by XOR for generating parity for data gleaned from a bus The invention provides a method and system for performing XOR operations without consuming substantial computing resources. A specialized processor is coupled to the same bus as a set of disk drives; the specialized processor reviews data transfers to and... | 09/07/1999 |
| 5948110 | Method for providing parity in a raid sub-system using non-volatile memory A method is disclosed for providing error correction for an array of disks using non-volatile random access memory (NV-RAM). Non-volatile RAM is used to increase the speed of RAID recovery from a disk error(s). This is accomplished by keeping a list of al... | 09/07/1999 |
