A method and apparatus for detecting a format of closed caption data contained in a broadcast signal automatically and displaying the caption data are provided. The apparatus further includes a device for applying an electrical stimulus between the conductive tip and the object area, and a device for measuring a response of the semiconductor wafer to the electrical stimulus and for determining from the response the at least one electrical property of the object area of the semiconductor wafer. The MD yarns are grouped into alternating pairs comprising a crossing pair having a first MD yarn and a second MD yarn and a second pair having a third MD yarn and a fourth MD yarn. The real-time computer subsystem also includes a dynamic control algorithm in software communication with the move module to repeatedly calculate a required actuator activation signal from a joint position feedback signal. A steering mechanism is operably connected to the cannula and is selectively operable by an operator to deflect the distal end of the cannula. The drive apparatus includes a clamping circuit and a masking circuit which are formed in a module.