Abstract: A chip planning method, tool and system for generating a population of gene strings representing floor plans for an integrated circuit, executing crossover on the strings to generate crossover child strings, executing mutation on the strings to generate mutated child strings, applying peristalsis operators to the strings to generate peristalsis child strings, and evaluating the child strings for inclusion in the population. The operators are peristalsis operators based on a speckle model. Dynamic control of migration rates and ranking is also executed, together with controlled race migration and immigration. Dynamic ratio control and optimisation of interconnecting area and pin assignment are also executed.

Abstract: A composite mouse assembly for a computer includes a mouse case. A computer interface encoder is contained in the mouse case. A positional sensor is connected to the interface encoder for controlling a screen indicator used for selecting menu items appearing on a display screen of the computer. A wireless remote control device is connected to the positional sensor and includes a plurality of user-activated direction control keys for transmitting digital serial encoded signals. A receiver unit is contained in the mouse case for receiving and amplifying the digital signals transmitted by the remote control device. A decoder is provided for interpreting the digital signals transferred by the receiver unit into one of a plurality digital direction control signals corresponding to the direction control keys of the remote control device. A converter converts the digital direction control signals to analog signals.