Page 174 - Concise Encyclopedia of Robotics
P. 174

Integration





                                    X    +                Output
                             Inputs
                                    Y
                            Integrated circuit—Fig 2

                            unsaturated transistors amplify as well as switch signals. The schematic
                            of Fig. 3 shows a simple ECL gate.
                              N-channel metal-oxide-semiconductor (NMOS) logic offers simplicity
                            of design, along  with  high  operating  speed. P-channel  metal-oxide-
                            semiconductor (PMOS) logic is similar to NMOS, but the speed is slower.
                            An NMOS or PMOS digital IC is like a circuit that uses only N-channel
                            field-effect transistors (FETs), or only P-channel FETs.
                              Complementary-metal-oxide-semiconductor (CMOS) logic employs both
                            N-type and P-type silicon on a single chip. This is analogous to using N-
                            channel and P-channel FETs in a circuit.The main advantages of CMOS are
                            extremely low current drain, high operating speed, and immunity to noise.
                         INTEGRATION
                            See INTEGRAL.
                         INTELLIGENT COEXISTENCE
                            See COEXISTENCE.
                         INTEREST OPERATOR
                            In machine vision, an interest operator is an algorithm that selects “inter-
                            esting” pixels (picture elements) in the image. “Interesting” in this context
                            refers to pixels that are different from the majority of those in their vicinity.




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