Patent
Method and apparatus for determining the status of a shared resource
TLDR
In this article, a method and apparatus for determining the status of a resource (810) shared by multiple subsystems (802, 804, 806, 808) operating in mutually asynchronous clock domains are presented.Citations
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Adaptive Reader-Writer Lock
TL;DR: In this paper, the authors propose a method and computer system for dynamically selecting an optimal synchronization mechanism for a data structure in a multiprocessor environment, based on data received from the individual units within a central processing system, the quantity of write-side acquisitions in the system, and data which has been subject to secondary measures, such as formatives of digital filters.
Patent
Method of and apparatus for managing resource allocation and bandwidth overflow in a cooperative, distributed computing environment
TL;DR: In this paper, a method of and apparatus for managing resource allocation and bandwidth overflow in a cooperative, distributed computing environment manages data transmissions between a sourcing device and one or more listening devices through a single source plug.
Patent
Data processing apparatus and method fo operating a data processing apparatus
TL;DR: In this article, the authors propose a protocol consisting of a first command (claim) which when issued by a processor results in a verification whether a requested number of tokens is available to said processor, and a second command (release) which results in updating one of the synchronization counters to indicate that tokens are released for use by the other processor.
Patent
Spinlock with adaptive delay
TL;DR: In this paper, a method and apparatus for improving multi-processor performance where the various processors are competing for spinlock acquisition is described, where a spinlock testing processor fails to acquire the spinlock, it re-tries for access after a small wait interval has passed.
Patent
System and method for managing and communicating state changes of a complex system
TL;DR: In this paper, a data structure that represents transitions between the state values is constructed in each of the configuration items, where each configuration item is a functional component of the system and has an associated state value that is one of a set of state values describing operational characteristics of a configuration item.
References
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System for animating program operation and displaying time-based relationships
TL;DR: In this article, the behavior of a model comprising a group of interrelated objects in an object oriented programing environment is defined by a constraint network including temporal constraints, which the future behavior of the model must satisfy following triggering events.
Patent
Extended atomic operations
TL;DR: In this paper, a method for serializing process access to shared resources utilizing low-level atomic functions to maintain control structures in which noncontiguous words must be modified at two different times.
Patent
System for transferring data between asynchronous data buses with a data buffer interposed in between the buses for synchronization of devices timed by different clocks
Juergen Haess,Rolf Hilgendorf +1 more
TL;DR: In this article, the first and second data buses having asynchronous, different frequency clocks are coupled with a data buffer interposed between them to receive data from the first bus and supply data to the second bus.
Patent
Difference comparison between two asynchronous pointers and a programmable value
TL;DR: In this paper, a first-in, first-out (FIFO) memory includes flag generation circuitry which utilizes a write clock counter and a read clock counter to provide the number of write clock pulses received since the previous write reset signal and the number received by the FIFO since a previous read reset signal.