摘要:
An embodiment of the present invention provides a programmable logic device (“PLD”) including a redundancy architecture adapted to selective route signals via first or second staggered vertical lines. Other embodiments provide configuration logic and programs for determining routing selections. Other embodiments provide proximate grouping of vertical lines driven from a same row. Other embodiments provide definition of spare row locations once defective row locations are known.
摘要:
A method and apparatus for determining a location of a mobile station (“MS”) in a Global-Navigation-Satellite System is disclosed. The method includes obtaining an estimate of position associated with a mobile-country code (“MCC-position estimate”), wherein the mobile-country code is associated with a given country, and wherein the MCC-position estimate comprises an measure of uncertainty. The method also includes using the MCC-position estimate as a position of the mobile station (“MS position”) when the measure of uncertainty satisfies a given threshold. The MCC-position estimate may include, for example, a centroid of population (“population centroid”); the population centroid and a uncertainty measure associated with the population centroid; a centroid of geography (“geographic centroid”), the geographic centroid and an uncertainty measure associated with the geographic centroid, and/or any combination thereof.
摘要:
An electronic device comprises a first plurality of configuration elements connected as a shift register for programming a subset of the programmable functions of the electronic device. The subset of programmable functions may be reprogrammed by loading configuration data into the first plurality of configuration elements such that the subset of programmable functions may be reprogrammed without necessarily reprogramming other programmable functions of the electronic device.
摘要:
A programmable logic system includes a reconfigurable programmable logic device and configuration storage that stores at least two configurations. A default configuration loads first and then loads the desired user application configuration. If the user application configuration fails, the system saves data regarding the failure and then returns to the default configuration for recovery. The default configuration, after reading the failure data, causes an operator to be called to intervene, or loads a different (e.g., previous) configuration if one is available in configuration storage. The system is particularly useful where the user can update configurations remotely. In an alternative mode, the system stores only the user configuration (which is loaded first) and the default configuration. If a newly-loaded configuration fails, the default configuration is loaded and signals the operator or takes other action short of loading a different configuration.
摘要:
A programmable logic system includes a reconfigurable programmable logic device and configuration storage that stores at least two configurations. A default configuration loads first and then loads the desired user application configuration. If the user application configuration fails, the system saves data regarding the failure and then returns to the default configuration for recovery. The default configuration, after reading the failure data, causes an operator to be called to intervene, or loads a different (e.g., previous) configuration if one is available in configuration storage. The system is particularly useful where the user can update configurations remotely. In an alternative mode, the system stores only the user configuration (which is loaded first) and the default configuration. If a newly-loaded configuration fails, the default configuration is loaded and signals the operator or takes other action short of loading a different configuration.
摘要:
A trim detail system with trim detail has an exterior surface with a contour for attachment to a structure. The trim detail includes a base material, such as foam, having an exterior surface with a contour generally matching the contour of the trim detail. A first layer of material, such as foam-coat, overlays the exterior surface of the base material that is harder than the base material. A second layer of material, such as a gypsum-based "drywall" material, overlays the first layer of material that is softer than the first layer of material.
摘要:
A digital delay lock loop for generating frequency multiples of an input clock signal includes a programmable digital oscillator, a phase comparator, a programmable counter and delay control logic. The programmable digital oscillator is a ring connected programmable delay line and inverter which together generate an output clock signal having a frequency which depends upon the time delay of the programmable delay line. The phase comparator compares the phase of the output clock signal to that of a reference clock signal and generates a phase error signal which represents the phase difference between such signals. The programmable counter, programmed and reprogrammed with the arrival of every reference clock signal pulse, counts the output clock signal pulses to generate a count signal. The delay control logic, in response to the phase error signal and count signal, programs the time delay of the programmable delay line, thereby causing the output clock signal frequency to be the desired multiple of the reference clock frequency.