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An RDMA enabled I / O adapter and device driver is disclosed. In response to a memory registration that includes a list of physical memory pages backing a virtually contiguous memory region, an entry in a table in the adapter memory is allocated. A variable size data structure to store the physical addresses of the pages is also allocated as follows: if the pages are physically contiguous, the physical page address of the beginning page is stored directly in the table entry and no other allocations are made; otherwise, one small page table is allocated if the addresses will fit in a small page table; otherwise, one large page table is allocated if the addresses will fit in a large page table; otherwise, a page directory is allocated and enough page tables to store the addresses are allocated. The size and number of the small and large page tables is programmable.

A method of assigning transmission data rate in a multi-channel communication system based upon a comparison between projected transmitter power output for transmission at a selected data rate, and the maximum transmitter power capability. Relative power requirements for high and low processing gain channels are stored in a LUT in memory, for a variety of data transmission rates. By accessing the LUT, the relative power required for transmission over a low processing gain channel at a selected data rate can be determined. This power is then added to the current output power required by active high processing gain channels to determine the projected output power required once the low processing gain, or data, channel is brought online at the selected data rate. Data rate is increased or decreased until the projected output power is within a pre-selected transmitter output power tolerance, then that data rate is proposed to the receiver.

A system and computer system for improving data integrity and memory performance using non-volatile media. A system includes a non-volatile mass storage unit, e.g., a flash memory device and / or a hard drive unit for instance. A memory device is used as a high speed data buffer and / or cache for the non-volatile storage unit. The memory device may be non-volatile, e.g., magnetic random access memory (MRAM) or volatile memory, e.g., static dynamic random access memory (SDRAM). By buffering and / or caching the write data, fewer accesses are required to the mass storage device thereby increasing system performance. Additionally, mechanical and electrical degradation of the mass storage device is reduced. Certain trigger events can be programmed to cause data from the memory device to be written to the mass storage device. In one embodiment, the write buffer contents are preserved across reset or power loss events. In one embodiment, the mass storage unit may be a data transport layer, e.g., Ethernet, USB, Bluetooth, etc.

A landing pad receives and stores packages delivered from an aerial vehicle are awaiting pickup from an aerial vehicle. The landing pad can be placed outside of a window and can contain a transmitter for sending out an identification signal via radio frequency to aid aerial vehicles in finding the landing pad. The landing pad contains a landing platform with a trapdoor that leads to a storage compartment. The trapdoor can be configured to only open when it receives a signal from an authorized aerial vehicle. The storage compartment can be accessed via a storage compartment door which can contain a locking mechanism. The storage compartment can be climate controlled. The landing pad can also have a transmitter that emits sounds to discourage animals from nesting on or near the landing pad. The landing pad can also include a solar power generator as a source of electrical energy.

The present disclosure provides an apparatus and method for packet classification using a Bloom filter and includes determining a matching length of how long each field value of one or more fields in an input packet coincides with a field value of the corresponding field stored in a rule set by performing a field-by-field search on the fields in the input packet, and generating a tuple list made up of a combination of one or more of the matching length for the respective fields; selecting particular tuples existing in the rule set from the tuple list; filtering each of the selected tuples by using the Bloom filter; and searching for a best matching rule as a search pool exclusively within the tuples with the positive result of the filtering. According to the present disclosure, the object tuples to search can be substantially relieved to improve the searching performance.

An internal combustion engine for a vehicle provides variable displacement by selectively driving one or more engine crankshafts mounted within a single unitary engine block. In several embodiments the crankshafts are connected to a common output shaft with a one-way clutch between the common output shaft and at least one of the crankshafts. In one aspect starter gearing is independently associated with each of the first and second crankshafts and a starter is provided for selective engagement with the starter gearing of either of the crankshafts. In another aspect, an accessory drive for driving accessory systems of the vehicle receives power from any crankshaft which is operating, yet is isolated from any crankshaft that is not operating by a one-way clutch.

The present disclosure provides an apparatus and method for packet classification using a Bloom filter and includes determining a matching length of how long each field value of one or more fields in an input packet coincides with a field value of the corresponding field stored in a rule set by performing a field-by-field search on the fields in the input packet, and generating a tuple list made up of a combination of one or more of the matching length for the respective fields; selecting particular tuples existing in the rule set from the tuple list; filtering each of the selected tuples by using the Bloom filter; and searching for a best matching rule as a search pool exclusively within the tuples with the positive result of the filtering. According to the present disclosure, the object tuples to search can be substantially relieved to improve the searching performance.

A novel memory reading circuit includes a bit line for transmitting data bits within the memory, a plurality of storage elements for storing bits of data, and a precharge circuit coupled to the bit line for charging the bit line when the precharge circuit is in a charging state, the precharge circuit being operative to remain in the charging state at time when the storage elements assert the stored bits of data on the bit line. The memory may be a single-ended, static random access memory (“SRAM”). The SRAM circuits of the invention may be incorporated into each of a plurality of individual computers arrayed on a single die.

A recursively partitioned static router-table, the data structure incorporating a first-level partition including subtries and an auxiliary trie. A node of the subtrie includes a path Q(N) from the root R of a trie T to a root N of the subtrie, a stride s for a next-level partition, a mask that characterizes a next-level perfect hash function, and a pointer to the hash table for the next-level partition. At least one of the trie T, the first-level partition, the auxiliary trie, and the next-level partition is represented by a base structure selected from the group consisting of MBT and HSST.

The invention discloses an interactive type three-chamber biological fuel cell device and a method for denitriding wastewater by using the device, belongs to the sewage biological remediation and in particular relates to a denitrification treatment method applicable to wastewater containing nitrate nitrogen. By adopting the method, nitrate instead of oxygen is taken as an electron acceptor of a negative electrode on the basis of a conventional two-chamber biological fuel cell, and a three-chamber biological fuel cell consisting of a middle positive electrode chamber and two side negative electrode chambers is built; meanwhile, the conditions of switching on and off a middle positive electrode and two side negative electrodes are controlled interactively through a control switch, so that an electrode denitrification process and a non-electrode denitrification process of the negative electrode are reasonably matched to process. The method is capable of sustainably generating current and effectively removing nitrate nitrogen and saving an organic carbon source needed for denitrification; the method is a novel sewage treatment method based on energy conservation and consumption reduction and is good in application prospect.

A hierarchical data-storage system has a volatile storage medium, a first non-volatile storage medium, and a controller including a ranking engine tracking data writes to each of the memory mediums. Each medium is associated with a pre-set capacity threshold, and the controller, upon the volatile medium reaching its pre-set threshold, identifies one or more blocks of data as least-frequently written to the volatile medium, copies the data in those blocks to the non-volatile medium, and marks those blocks as available for new data writes, and the controller, upon the non-volatile medium reaching its pre-set threshold, identifies one or more blocks of data as least-frequently written to the non-volatile medium, and marks those blocks as available for new data writes from the volatile medium.

A landing pad receives and stores packages delivered from an aerial vehicle and awaiting pickup from an aerial vehicle. The landing pad can be placed outside of a window and can contain a transmitter for sending out an identification signal via radio frequency to aid aerial vehicles in finding the landing pad. The landing pad contains a landing platform with a trapdoor that leads to a storage compartment. The trapdoor can be configured to only open when it receives a signal from an authorized aerial vehicle. The storage compartment can be accessed via a storage compartment door which can contain a locking mechanism. The storage compartment can be climate controlled. The landing pad can also have a transmitter that emits sounds to discourage animals from nesting on or near the landing pad. The landing pad can also include a solar power generator as a source of electrical energy.

Methods, systems, and apparatus, including computer programs encoded on computer storage media, for receiving, from a user interface running on a publisher device, a baseline price for the article; receiving, from the user interface text and metadata of the article, the metadata comprising at least a genre for the article; determining, using one or more processors at a server system, a plurality of weights from the text and the metadata; applying, at the server system, the plurality of weights to the baseline price to generate the initial price of the article; and providing the initial price from the server system to a customer device for display at the device.