Abstract: Systems and methods are provided for a core management system for parallel processing of an evolutionary algorithm.

Abstract: The systems and methods may include receiving an initial population of parent chromosome data structures, where each parent chromosome data structure provides a plurality of genes; selecting pairs of parent chromosome data structures; applying at least one evolutionary operator to the genes of the selected pairs to generate a plurality of child chromosome data structures; allocating, the generated plurality of child chromosome structures to a plurality slave processors, where each slave processor evaluates one or more of the plurality of child chromosome data structures and generates respective objective function values; receiving objective function values for a portion of the plurality of allocated child chromosome data structures; merging the parent chromosome data structures with the received portion of the child chromosome data structures for which objective function values have been received; and identifying a portion of the merged set of chromosome data structures as an elite set of chromosome data stru

Abstract: Radio signals which are broadcast by multiple local radio stations are controlled by a single central distribution location. The central distribution location can transmit both nationwide programming and local programming to each local station. Because the origin of the programming is centralized, staff and equipment at the local station can be minimized.

Abstract: Radio signals which are broadcast by multiple local radio stations are controlled by a single central distribution location. The central distribution location can transmit both nationwide programming and local programming to each local station. Because the origin of the programming is centralized, staff and equipment at the local station can be minimized.

Abstract: A first major aspect of the invention relates to an active noise cancelling system which detects ambient noise and applies electro-accoustic processing thereto to produce an acoustic signal for cancelling out the ambient noise. The active noise cancelling system may be used to cancel all noise but an audio signal which is desired to be heard by the user. A second major aspect of the invention relates particularly to a system for electronically cancelling noise input to a user microphone, by utilizing known characteristics of speech signal and ambient noise. The first major aspect of the invention can be used in concert with the second major aspect in a communication system at the earpiece of a telephone and the mouthpiece of a telephone.

Abstract: A bilateral transducer (18) for use in an active noise cancellation system both senses ambient noise and produces acoustic waves to cancel the noise. The electrical interface for each bilateral transducer circuit consists of a speaker drive signal as an input and a simulated microphone signal as an output. In a first embodiment, the drive signal to the bilateral transducer is periodically turned off at a rate above audibility, and in the "off period" the transducer's drive element is sensed to produce a reverse output signal from which is subtracted a synthesized signal representing the speaker velocity response to the drive signal to produce the simulated microphone signal. In further embodiments, the reverse output signal is derived by sensing the energy being sent to the transducer to produce the acoustic waves, or by a separate sensing coil in a coil driven transducer.