Lucent Technologies Inc.

American Telephone & Telegraph Co., At&t Bell Laboratories

At&t Bell Laboratories

Jeffrey C Lagarias

Nuggehally Sampath Jayant

Narendra K Karmarkar

David A Bayer

The device and method according to the present invention permute the order of signals representing information intended for transmission over a communication medium. The signal ordering is permuted prior to or at the time of transmission over the communication medium such that when the information or data is transmitted in the permuted order, it is more tolerant to data corrupting defects, such as a faulty communications line, or events, such as an electromagnetic pulse, that exist or may occur during the communication process.

Method and apparatus for providing error-tolerant communication of

The device and method according to the present invention permute the order of signals representing information intended for storage in a memory. The signal ordering is permuted prior to or at the time of storage in the memory such that when the information or data is stored in the permuted order, it is more tolerant to errors or defects that existed or may occur in the memory.

Method and apparatus for providing error-tolerant storage of information

Method and apparatus for optimizing the operational state of a system employing iterative steps that approximately follow a projective scaling trajectory or an affine scaling trajectory, or curve, in computing from its present state, x.sub.0 to a next state x.sub.1 toward the optimum state. The movement is made in a transformed space where the present (transformed) state of the system is at the center of the space, and the curve approximation is in the form of a power series in the step size. The process thus develops a sequence of tentative states x.sub.1, x.sub.2, x.sub.n . . . . It halts when a selected suitable stopping criterion is satisfied, and assigns the most recent tentative state as the optimized operating state of the system.

Growing community of inventors

Summit, NJ, United States of America

Jeffrey C Lagarias