Abstract: An operational amplifier including: a differential pair of transistors coupled to a pair of input signals; and a pair of floating-gate transistors coupled to the differential pair of transistors, wherein the pair of floating-gate transistors are operable for reducing an offset voltage of the operational amplifier.
Type:
Grant
Filed:
March 22, 2010
Date of Patent:
September 13, 2011
Assignee:
Georgia Tech Research Corporation
Inventors:
Paul Hasler, Venkatesh Srinivasan, Guillermo Serrano, Jordan Gray
Abstract: Disclosed are multivariate paraunitary asymmetric cryptographic systems and methods based on paraunitary matrices. The cryptographic systems and methods are based on formulating a system of multivariate polynomial equations by paraunitary matrices. These matrices are a family of invertible polynomial matrices that can be completely parameterized and efficiently generated by primitive building blocks. Using a general formulation involving paraunitary matrices, a one-way function is designed that operates over the fields of characteristic two. Approximations made to a paraunitary matrix result in a trapdoor one-way function that is efficient to evaluate, but hard to invert without secret information about the trapdoor. An exemplary implementation operates on the finite field GF(256). In this example, the message block includes 16 to 32 symbols from GF(256), i.e., the block size is an integer between 16 and 32. The ciphertext block takes its elements from the same field and has at least 10 extra symbols.
Abstract: A method of making a rubber latex comprises providing a rubber latex and adding to the latex a solution of a reinforcing agent. Further, a method of making a reinforced rubber latex film comprises providing a rubber latex, adding to the latex a solution of a reinforcing agent, then forming a film from the latex. There is also provided a rubber latex comprising a solution of a reinforcing agent, which is preferably a solution of a water-soluble silicate. Rubber latex films and articles made therefrom are also provided.
Abstract: A safety scalpel that incorporates a reusable metal scalpel handle similar in shape and feel to the conventional metal handle preferred by most surgeons, and a disposable blade cartridge that covers the blade before, during and after use, and is easily mounted and released from the scalpel handle. The blade cartridge includes a blade with similar cutting profiles as standard surgical blades, a blade holder that is permanently fixed to the blade, and a blade guard that covers the blade and within which the blade holder is able to slide. The scalpel handle is reusable, while the blade cartridge is disposable. The blade cartridge is attachable and detachable from the scalpel handle.
Abstract: There is disclosed a mounting technique for mounting a semiconductor chip of the leadless or so-called flip chip type to a header. The header has an insert made of glass or other suitable non-conductive material within the header hollow. Mounted into the glass insert are a series of conductive metal pins which are placed in areas so that when a chip is mounted in the header, the chip makes contact with these conductive pins and allows one to make outside connections. Also positioned in the header are a series of nonconductive guide pins. These pins are placed in suitable positions in the header to enable one to contact the outside surfaces of the chip when the chip is placed in the header. In this manner, the chip is constrained from movement from side to side or from rotation. However, due to the positioning of the nonconductive pins within the header, it is possible to move the chip up and down while mounting.
Abstract: The present invention relates to the compounds of the general formula (I), a composition for and a method of treating breast cancer or other proliferative disorders in a subject using a compound of general formula [I], wherein the substituents are as defined in the specification.
Type:
Grant
Filed:
July 20, 2009
Date of Patent:
September 6, 2011
Inventors:
Gloria L. Anderson, Tawfeq Abdul-Raheem Kaimari