45 results about "High water mark" patented technology

A “push” based publication model in which messages are sent automatically to communicate event related data to other system applications when an event occurs that causes a change to a persistent data store. A shadow table stores records relating to information stored in the main table. Each record is assigned a sequentially ordered identification code. A high water mark table stores the identification number of the last message published for a group of messages, and thus points to where publication last stopped. By using sequentially ordered codes, it is readily apparent from a gap in the sequence codes whether a record / message is missing. The shadow table may be configured as an Index Ordered Table to eliminate a query “hop” from the index table to the shadow table. The persistent store is queried to identify changes in persistent store structure, and the message structure is modified automatically to reflect any changes.

Techniques are disclosed for the efficient display of hierarchical datasets using high-water mark scrolling. Certain techniques allow for the creation of simple, intuitive, and computationally inexpensive user interfaces for displaying hierarchical data sets. According to some embodiments, a defined number of items of a hierarchical list are presented in a hierarchical user interface module. This defined number of items may be referred to as a “high-water mark” value. When one of the items having associated child items (that are not currently displayed) is selected, one or more presented items in the hierarchical list are replaced with a corresponding one or more of the child items, thus maintaining a same number of displayed list items (i.e., the high-water mark number of displayed list items).

An apparatus for providing storage is provided that includes a jitter buffer element. The jitter buffer element includes a primary jitter buffer storage that includes a primary low water mark and a primary high water mark. The jitter buffer element also includes a secondary jitter buffer storage that includes a secondary low water mark and a secondary high water mark. A first data segment within the primary jitter buffer storage is held for a processor. A playout point may advance from a bottom of the primary jitter buffer storage to the primary low water mark. When the playout point reaches the primary low water mark, the processor communicates a message for the secondary jitter buffer storage to request a second data segment up to the secondary high water mark associated with the secondary jitter buffer storage.

A method and system of reclaiming storage space in data storage systems is disclosed. In one embodiment, a high water mark of a data container is adjusted after data in the data container is compacted. As a result, unused space in the data container can be reclaimed.

Summarization methods can interact on a common data source using identifiers that correspond to events or other actions. These identifiers can be updated, whenever appropriate, once the corresponding data has been summarized, in order to provide for multiple extraction methods to operate only on the data of interest, and obtain a lock only on the data within the scope of extraction. High water marks, such as identifiers in the sequent, can be used to further designate which data has previously been extracted. Similarly, summarization methods can interact by utilizing corresponding persistent tables in the flows for the methods, but utilizing separate intermediate tables to allow for data transformations and application of various business rules and tuning techniques. The ability to switch between different methods can accommodate business, performance, or other such needs, and can provide for the dynamic extraction and summarization of different volumes of data.

Methods and systems for determining the amount of water in a high water cut crude petroleum flow stream exiting from a hydrocarbon well. Electrical property measurements such as permittivity measurements are collected with a microwave analyzer system as high water cut oil exits from a well. Collection is continued until the span of the measurements of at least one property reaches at least a characteristic pre-determined value. A heuristic salinity of the water phase of the crude oil can then be determined based on the span statistics and reference equations and / or reference data. The flow-weighted average water content of the oil can then be determined using the heuristic salinity to correct for salinity variation as the output of the well changes over time.

A system for detecting and preventing replay attacks includes a plurality of interconnected authentication servers, and one or more tokens for generating a one-time passcode and providing the one-time passcode to one of the authentication servers for authentication. The system includes an adjudicator function associated with each authentication server. The adjudicator evaluates a high water mark value associated with a token seeking authentication, allows authentication to proceed for the token if the high water mark evaluation indicates that the one-time passcode was not used in a previous authentication, and prevents authentication if the high water mark evaluation indicates that the one-time passcode was used in a previous authentication. The token is associated with a home authentication server that maintains a current high water mark of the token. The home authentication server validates the current high water mark on behalf of the adjudicator function evaluating the token for authentication.

An apparatus for providing storage is provided that includes a jitter buffer element. The jitter buffer element includes a primary jitter buffer storage that includes a primary low water mark and a primary high water mark. The jitter buffer element also includes a secondary jitter buffer storage that includes a secondary low water mark and a secondary high water mark. A first data segment within the primary jitter buffer storage is held for a processor. A playout point may advance from a bottom of the primary jitter buffer storage to the primary low water mark. When the playout point reaches the primary low water mark, the processor communicates a message for the secondary jitter buffer storage to request a second data segment up to the secondary high water mark associated with the secondary jitter buffer storage.

The invention provides a prediction method for the natural decline rate at a super-high water-cut later period of a water flooding development oil reservoir. The prediction method comprise the steps of calculating the annual production natural decline amount according to development indexes in recent years, and calculating the annular natural decline rate; calculating an annual year injection-production ratio according to the annual water injection volume of a calculated oil field and the deficit amount of a statistical stratum in the recent years; calculating stratum number injection-production corresponding rate at the annual year end of the calculated target in the resent years; carrying out liner fitting on the product of the annual year injection-production ratio and the stratum number injection-production corresponding rate and an annual output natural decline amount variation so as to acquire a calculation formula for measuring and calculating the annual output natural decline amount; calculating the natural output decline amount of the next year according to the calculation formula of the annual output natural decline amount, and then calculating the natural decline rate according to a calculation formula of the decline rate. The prediction method for the natural decline rate at the super-high water-cut later period of the water flooding development oil reservoir can meet application requirements of the oil field, and effectively guides practices at a super-high water-cut later development period of medium and high permeability water flooding oil reservoirs.

The embodiment of the invention discloses processing methods of multimedia information. One of the methods includes: receiving a first exposure request, wherein the first exposure request is used forrequesting sending of the multimedia information for a first user set; in response to the first exposure request, sending the first multimedia information for the first user set according to an HWM (High Water Mark) algorithm, and obtaining exposure quantity of the first multimedia information by counting; sending the exposure quantity of the first multimedia information to a first server to obtain total exposure quantity of the first multimedia information by counting; receiving excess notification information from the first server, wherein the excess notification information is used for characterizing a case where the total exposure quantity of the first multimedia information is greater than or equal to a preset threshold value; and in response to the excess notification information, stopping sending of the first multimedia information. The embodiment of the invention discloses processing devices of the multimedia information and servers at the same time.

A set associative cache is managed by a memory controller which places writeback instructions for modified (dirty) cache lines into a virtual write queue, determines when the number of the sets containing a modified cache line is greater than a high water mark, and elevates a priority of the writeback instructions over read operations. The controller can return the priority to normal when the number of modified sets is less than a low water mark. In an embodiment wherein the system memory device includes rank groups, the congruence classes can be mapped based on the rank groups. The number of writes pending in a rank group exceeding a different threshold can additionally be a requirement to trigger elevation of writeback priority. A dirty vector can be used to provide an indication that corresponding sets contain a modified cache line, particularly in least-recently used segments of the corresponding sets.