148results about How to "Block value" patented technology

A TCP Offload Engine (TOE) device includes a state machine that performs TCP / IP protocol processing operations in parallel. In a first aspect, the state machine includes a first memory, a second memory, and combinatorial logic. The first memory stores and simultaneously outputs multiple TCP state variables. The second memory stores and simultaneously outputs multiple header values. In contrast to a sequential processor technique, the combinatorial logic generates a flush detect signal from the TCP state variables and header values without performing sequential processor instructions or sequential memory accesses. In a second aspect, a TOE includes a state machine that performs an update of multiple TCP state variables in a TCB buffer all simultaneously, thereby avoiding multiple sequential writes to the TCB buffer memory. In a third aspect, a TOE involves a state machine that sets up a DMA move in a single state machine clock cycle.

One embodiment of the present invention provides a system that facilitates user queries to a database. During operation, the system stores one or more query criteria templates in a template table in the database. Each record in the template table corresponds to a query criteria template. A query criteria template contains information on search-field names and search-field values for a query. The system also allows a user to select a template from the stored templates prior to performing a query, thereby reducing the number of search-field values the user has to manually enter. In this way, a number of query criteria templates can be stored in a single table with a column containing parsable query criteria.

A method of compressing an image formed of pixels. The method includes providing a pixel of the image, to be encoded, selecting at least two pixels of the image, other than the encoded pixel, defining a straight line including the encoded pixel, to serve as prediction pixels, calculating a prediction value for the encoded pixel using at least the selected pixels, determining a difference between the calculated prediction value and the actual value of the encoded pixel, encoding the determined difference, such that the encoding error is bounded; and repeating for at least 5% of the pixels of the image.

A method of compressing an image formed of pixels. The method includes providing a pixel of the image, to be encoded, selecting at least two pixels of the image, other than the encoded pixel, defining a straight line including the encoded pixel, to serve as prediction pixels, calculating a prediction value for the encoded pixel using at least the selected pixels, determining a difference between the calculated prediction value and the actual value of the encoded pixel, encoding the determined difference, such that the encoding error is bounded; and repeating for at least 5% of the pixels of the image.

An amplifier circuit includes first (7A) and second (7B) operational amplifiers connected in a generally parallel configuration, each with inputs coupled through the same pair of matched input resistors which receive a differential input signal that may have both a positive and negative common mode range. An offset adjustment amplifier (17) receives a differential error signal representative of the difference between offset voltages of the first and second operational amplifiers and generates offset adjustment signals that are applied to input stages of the first and second operational amplifiers to adjust their respective offset voltages so as to equalize them. With the offset voltages equalized, the first and second operational amplifiers operate seamlessly as a common mode component of the differential input signal undergoes a transition from its positive to its negative range, so as to avoid inaccuracies and abrupt changes in an output voltage during the transition, the output voltage being produced in response to outputs of both first and second operational amplifiers.