摘要:
Systems and methods of operating a computing system may involve securely printing a print document sent from a client device to a target printer. In one example, the method may include verifying an operating environment of the target printer and generating a plurality of security keys to implement asymmetric encryption of the print document.
摘要:
A method of processing network data in a network processor includes assigning a group of receive threads to process network data from a port. Each of the group of receive threads process network data in a round-robin fashion.
摘要:
A method and system for compressing video data in a computer has video processing that is distributed between preprocessing hardware in a video capture/controller card and a central processing unit of the computer. Frames of video data are passed to a motion estimation unit of the preprocessing hardware. This unit generates motion information describing inter-frame changes in the video data. Next, motion-compensated temporal filtering is performed on the frames of video data using the motion information. A video frame processing unit of the controller card, used for processing video data to the monitor, is reused for the temporal filtering of the input video data. Finally, the temporally-filtered video data is passed to the central processing unit, which performs inter-frame and/or intra-frame compression with reference to the motion information. In this way, motion-compensated temporal filtering is performed, thus removing the associated noise without adding to the CPU's processing burden, but the costs associated with dedicated compression hardware are avoided by relying on the video capture capabilities in the video controller card.
摘要:
A method and apparatus is presented for video image compression using a unique operand decomposition technique combined with an innovative data scatter and retrieve process. This combination of features allows the use of single ported RAM structures where multiported RAMS would normally be used, such as when retrieving two operands in the same time cycle. As applied to the Discrete Cosine Transformation this method and apparatus additionally allows elimination of the usual prior art use of a separate transpose matrix buffer. The elimination of the separate transpose matrix buffer is accomplished by combining the transpose matrix intermediate results memory storage with the memory buffer used for the other intermediate results in a double buffer system. The double buffer memory locations are chosen so that the intermediate storage register address are orthogonal to the initial source addresses, thereby using one of the properties of the Discrete Cosine Transform to improve speed of operation and reduce the circuit area and system cost.
摘要:
The binary multiplier circuit for obtaining a product of a M-bit multiplier and a N-bit multiplicand includes a multiplier circuit which produces a matrix of original summand bits having M rows and M+N columns and a matrix reduction circuit. In the matrix reduction circuit, for every column of the matrix having three or more original summand bits, groups of three bits are input into full adder circuits which output a sum bit for that column and a carry bit for the column in the next most significant bit position. For every column having three or fewer original summand bits, and having the least significant column position that is not yet reduced to two or fewer bits, groups of two bits are input into a half adder circuit which outputs a sum bit for that column and carry bit for a column in the next most significant bit position. Iterative reductions are performed for each column by using full adder circuits for every group of three bits in a column and by using a half adder circuit for any remaining group of two bits in a column. The reduction continues until each column of the matrix is reduced to two or fewer bits. The remaining two rows of bits can be input to a carry-propagating adder circuit to output a sum equal to the product.
摘要:
Technologies for flexible I/O endpoint acceleration include a computing device having a root complex, a soft endpoint coupled to the root complex, and an offload complex coupled to the soft endpoint. The soft endpoint establishes an emulated endpoint hierarchy based on endpoint firmware. The computing device may program the endpoint firmware. The soft endpoint receives an I/O transaction that originates from the root complex and determines whether to process the I/O transaction. The soft endpoint may process the I/O transaction or forward the I/O transaction to the offload complex. The soft endpoint may encapsulate the I/O transaction with metadata and forward the encapsulated transaction to the offload complex. The soft endpoint may store responses from the offload complex in a history buffer and retrieve the responses in response to retried I/O transactions. The I/O transaction may be a PCI Express transaction layer packet. Other embodiments are described and claimed.
摘要:
A rack for supporting sleds includes a pair of elongated support posts and pairs of elongated support arms that extend from the elongated support posts. Each pair of the elongated support arms defines a sled slot to receive a corresponding sled. A power supply is attached to an elongated support arm of each pair of elongated support arms to provide power to a corresponding sled. The power supply may include a chassis-less circuit board substrate that is removable from a power supply housing coupled to the corresponding elongated support arm.
摘要:
Apparatus and methods for cableless connection of components within chassis and between separate chassis. Pairs of Extremely High Frequency (EHF) transceiver chips supporting very short length millimeter-wave wireless communication links are configured to pass radio frequency signals through holes in one or more metal layers in separate chassis and/or frames, enabling components in the separate chassis to communicate without requiring cables between the chassis. Various configurations are disclosed, including multiple configurations for server chassis, storage chassis and arrays, and network/switch chassis. The EHF-based wireless links support link bandwidths of up to 6 gigabits per second, and may be aggregated to facilitate multi-lane links.
摘要:
According to some embodiments, a document processing unit may receive information associated with a document to be processed. The document processing unit might comprise, for example, a printer, scanner, copier, facsimile machine, or multi-function device. The document processing unit may then determine a user identifier indicating a user associated with the document to be processed. At least one user preference value associated with the user may then be automatically retrieved, and the document may be processed in accordance with the user preference value.
摘要:
A method of processing network data in a network processor includes using three or more threads to process a beginning portion, a middle portion, and an end portion of data packet. The first thread processes the beginning portion; one or more middle threads process the middle portion, and a last thread processes the end portion. First information is indirectly passed from the first thread to the last thread via a first buffer with the middle threads progressively updating the first information. Second information is directly passed from the first thread to the last thread via a second buffer.