Abstract: An apparatus comprises a connector configured to receive an electrical contact of an accessory device that is electrically coupled to a resistor of the accessory device, a current source configured to apply a specified current to the resistor to generate a resulting voltage, a comparator configured to receive and compare the resulting voltage to a reference voltage, and a controller configured to store an outcome of the comparison as a bit in a register, to adjust the applied current using the outcome of the comparison, and to determine a resistance value for the resistor using the bit stored in the register.

Abstract: An apparatus comprises a connector configured to receive an electrical contact of an accessory device that is electrically coupled to a resistor of the accessory device, a current source configured to apply a specified current to the resistor to generate a resulting voltage, a comparator configured to receive and compare the resulting voltage to a reference voltage, and a controller configured to store an outcome of the comparison as a bit in a register, to adjust the applied current using the outcome of the comparison, and to determine a resistance value for the resistor using the bit stored in the register.

Abstract: This document discusses, among other things, methods and apparatus for detecting an attached state of a port of a device. In an example, a method can include monitoring a supply bus pin of a USB port for a valid voltage using a first state machine, monitoring an ID pin of the USB port for a non-floating voltage using a second state machine, and simultaneously and independently executing the first state machine and the second state machine, wherein the first state machine is different than the second state machine.

Abstract: The invention provides isolated antibodies that specifically bind human P210 BCR-ABL fusion protein, but do not bind the respective wild type BCR and c-ABL proteins. The detection of this fusion protein is relevant to CML and other diseases characterized by the P210 BCR-ABL translocation. Also provided are methods for determining the level or expression of P210 BCR-ABL in a biological sample, or identifying a compound that modulates such expression, by using the disclosed BCR-ABL specific antibodies.