Abstract: An arbitration protocol, preferably known as data-valid extended (DVE) protocol, for determining which one of the two units within a computer system may obtain access to a common bus is described. The DVE protocol is based on a point-to-point communication between two peer units. The DVE protocol is a physical level signalling convention for controlling switch communications on bi-directional address buses and data buses in a boundary-latched synchronous environment. The DVE protocol is asymmetric, yet fair, and is designed to minimize the number of cycles spent (or latency) in accessing the address or data buses and to maximize the number useful cycles (or bandwidth) on the address buses as well as the data buses. The asymmetry of the DVE protocol reduces the number of cycles spent in arbitration to zero for any data transfer size greater than one.

Abstract: A method and apparatus for applying and blending on a human upper eyelid various shades of one or more of eye shadows. The method includes applying two or more shades in individual segments on the upper eyelid and blending in all together. The apparatus is made of a flexible material, and includes a cut-out section and a recess section separated by a thin partition wall for applying various shades of eye shadows therethrough. The device is contoured to fit within the bone structure above the eye of a person and includes holding flaps with pressure-sensitive adhesive back-layers for temporarily securing it on the face of the person. Two markings are provided for aligning the device with the outer curvature of the upper eyelid of the user.