Abstract: An instrument and method for operating the same is disclosed. The instrument includes an input port for receiving a signal, a processor for measuring a first parameter related to the signal, and a touch-enabled display. The touch-enabled display receives commands directed to the processor and displays the first parameter. The commands including commands that determine how the first parameter is displayed and commands that determine the manner in which the instrument operates. The commands are grouped into a plurality of contexts. Each command in a context is specified by a control gesture on the touch-enabled display. A first control gesture is used for a first command in a first context, the first control gesture is also utilized for a second command in a second context, the first context being different from the second context.

Abstract: A multi-band frequency multiplier configured to generate frequencies and multiplied frequencies in an integrated system. The multi-band frequency multiplier includes a multi-band multiplier core with a multiplier core differential amplifier configured to receive a multiplier input signal. A switchable load impedance connects to the multiplier core differential amplifier, and includes n multiplier sections. Each multiplier section includes a section impedance and a section switch. The multiplier core differential amplifier generates an output signal having a frequency substantially equal to k times the input frequency in a range of a selected one of n critical frequencies when a selected one of the section switches corresponding to the selected one of the n critical frequencies is triggered.

Abstract: A method for operating a data processing system to implement a gesture on a touch enabled display is disclosed. The method causes the data processing system to determine a position of a contact object on the touch-enabled display as a function of time. The data processing system provides an offset indicating a distance through which a point shown on the display is to be moved in response to the determined position. The offset has a first value in a normal mode and a second value in a precise gesture mode. The value in the precise gesture mode is less than the value in the normal mode. The data processing system automatically changes from the normal mode to the precise gesture mode in response to changes in the determined position as a function of time. Exemplary changes utilize changes in direction or the speed of motion of the contact object.

Abstract: An apparatus and method for synchronous communications using a serial data stream employs a housing with a controller and a back plane. The housing accepts one or more modules for interconnection with the back plane. The back plane distributes power to the modules and provides a communication link from the controller to each module. Each communication link includes a data out line, a data in line and a clock line, where each clock line is derived from one clock source.

Abstract: A system for compensating for periodic noise in a time interleaved system having multiple phases of interest includes a master clock path, a detection circuit and an actuator circuit. The master clock path is configured to receive an input clock and to output an output clock, each of the input and output clocks having periodically occurring interleaving periods. Each interleaving period includes timeslots corresponding to the phases of interest of the time interleaved system. The detection circuit is configured to receive the input and output clocks for each timeslot, and to detect periodic noise in the output clock introduced by the master clock path by comparing the received input and output clocks. The actuator circuit includes a controllable delay element configured to adjust a delay of the input clock through the master clock path to compensate for the periodic noise detected by the detection circuit for each timeslot.

Abstract: A system comprises a voltage source, a piezoelectric material arranged in a first current path between the voltage source and a first reference voltage, a capacitor arranged in a second current path between the voltage source and a second reference voltage, and a correction circuit configured to adjust the first reference voltage to increase or decrease the current in the first current path according to the current in the second current path.

Abstract: A method of operating an analog to digital converter (ADC) comprises comparing an analog input signal to a reference signal, using a comparator, and generating a comparator output according to the comparison, storing the comparator output in at least one memory unit, monitoring the stored comparator output to determine whether a difference between the analog input signal and the reference signal is within a predetermined range, and detecting a metastability error upon determining that the difference between the analog input signal and the reference signal is within a predetermined range.