Abstract: An integrated circuit (IC) device can include a plurality of analog blocks, including at least one fixed function analog circuit, a plurality of reconfigurable analog circuit blocks, at least one analog routing block reconfigurable to provide signal paths between any of the analog blocks; and a digital section comprising digital circuits; wherein each analog block includes dedicated of signal lines coupled to the at least one analog routing block.

Abstract: An integrated circuit (IC) device can include a plurality of analog blocks, including at least one fixed function analog circuit, and at least one reconfigurable analog circuit block selected from: a continuous time (CT) block comprising a plurality of reconfigurable amplifier circuits and a discrete time block comprising amplifiers with a reconfigurable switch network; an analog multiplexer (MUX) configured to selectively connect any of a plurality of input/outputs (I/Os) of the IC device to the analog blocks, the analog MUX including at least one low noise signal path pair having a lower resistance than other signal paths of the analog MUX; at least one analog routing block reconfigurable to provide signal paths between any of the analog blocks; a digital section comprising digital circuits; and a processor interface coupled to the analog blocks.

Abstract: A system for the calibration of a programmable system-on-a-chip is described. More specifically, embodiments of the present invention relate to a system that calibrates a programmable analog block in a system-on-a-chip without the use of external components.

Abstract: A circuit includes a switched modulator stage combining an information signal with a square wave carrier to produce a first modulated signal; and a second modulation stage forming additional steps in the first modulated signal to produce a second modulated signal.

Abstract: One embodiment includes an I/O multiplexer bus including a signal line coupled to a signal source and multiple line switches, each line switch to couple a corresponding I/O port to the signal line. Switch logic coupled to the I/O multiplexer bus may programmatically switch the multiple line switches to couple at least one of the signal source and measurement circuitry to the respective I/O port.

Abstract: A technique for recognizing and rejecting false activation events related to a capacitance sense interface includes measuring a capacitance value of a capacitance sense element. The measured capacitance value is analyzed to determine a baseline capacitance value for the capacitance sensor. The capacitance sense interface monitors a rate of change of the measured capacitance values and rejects an activation of the capacitance sense element as a non-touch event when the rate of change of the measured capacitance values have a magnitude greater than a threshold level, indicative of a maximum rate of change of a touch event.

Abstract: A technique for recognizing and rejecting false activation events related to a capacitance sense interface includes measuring a capacitance value of a capacitance sense element. The measured capacitance value is analyzed to determine a baseline capacitance value for the capacitance sensor. The capacitance sense interface monitors a rate of change of the measured capacitance values and rejects an activation of the capacitance sense element as a non-touch event when the rate of change of the measured capacitance values have a magnitude greater than a threshold level, indicative of a maximum rate of change of a touch event.

Abstract: A technique for recognizing and rejecting false activation events related to a capacitance sense interface includes measuring a capacitance value of a capacitance sensor within the capacitance sense interface to generate a measured capacitance value. The measured capacitance value is analyzed to determine a baseline capacitance value for the capacitance sensor. The baseline capacitance value may be updated based at least in part upon a weighted moving average of the measured capacitance value. The measured capacitance value may also be analyzed to determine whether the capacitance sensor was activated during a startup phase and to adjust the baseline capacitance value in response to determining that the capacitance sensor was activated during the startup phase.

Abstract: A method and apparatus for detecting an environmental effect and a presence of a conductive object on a touch-sensing device without using a dedicated environmental effect sensor, and compensating for the environmental effect on the detection of the conductive object. The method may include detecting an environmental effect on a touch-sensing device using a touch sensor, detecting a presence of a conductive object, and compensating for the environmental effect on the detection of the conductive object. The apparatus may include a touch-sensing device having a touch sensor to detect an environmental effect and a processing device to compensate for the environmental effect.

Abstract: An electrotherapy delivery device includes an upper member having a handle portion and a pediatric electrode mounted to the bottom surface of the upper member. A base member having an adult electrode is selectively attached to the upper member with a coupling mechanism to conceal the pediatric electrode. The upper member attaches to the base member across diametrically opposed corners of the base member to provide the user with a more ergonomic hand position when accessing the paddles from the defibrillator. The device further include a plurality of switches operable to deliver a charge and to select the level of charge to be delivered to the patient. The paddle is provided with a processing circuit that receives an output from separate energy level increase and decrease switches, processes the output from the switches, and outputs a signal to the defibrillator corresponding to the level of energy selected by the switches.

Abstract: A baseline wander filter (BWF) with linear phase response for an ECG signal measuring system includes two cascaded box car FIR filters to estimate the baseline wander. The cascaded box car filters form, in effect, a triangular FIR filter that generates a weighted sliding window average of the input samples to serve as the estimated baseline wander. The estimated baseline wander samples generated by the BWF are then subtracted from the corresponding input ECG samples. The boxcar filters can be designed to avoid multiplication by adding the samples and dividing the resulting sum by the number of coefficients. By choosing the number of coefficients as a power of two, binary division can be performed by shifting the bits of the resulting sum to the right. Accordingly, the present invention avoids the relatively large computational load of conventional FIR filter-based systems.

Abstract: A method and apparatus for monitoring an electrocardiograph waveform, and for returning an electrocardiograph trace to the middle of a display, such as a chart recorder strip. The monitoring circuit includes an amplifier and a switch for switching the frequency response curve of the monitoring circuit. In a first position, the switch causes the monitoring circuit to have a slow frequency response curve, which allows for accurate monitoring of ECG waveforms. In a second position, the switch causes the monitoring circuit to have a fast frequency response curve, which allows the amplifier of the monitoring circuit to quickly be brought out of saturation. The amplifier of the monitoring circuit becomes saturated when a defibrillation or pace pulse has been applied to a patient who is being monitored. The switch is controlled by a pulse waveform control signal that is provided by a microprocessor.

Abstract: An infusion system includes fluid-delivery components for delivering a fluid from a separate source of the fluid into a patient, transducer components for producing a signal related to the pressure of the fluid in the fluid-delivery components, and identification components responsive to the signal for identifying pressure artifacts characteristic of patient activity. Gravity-fed infusion may be employed as well as infusion with a flow control device, and identification may be accomplished with a microprocessor for examining the waveform of the signal and identifying pressure artifacts characteristic of patient activity amidst pressure changes caused by fluid-delivery components so that site checking can be conducted during quiet periods, i.e., times of little patient acitivity.

Abstract: An infusion system for infusing a fluid into a patient comprising an infusion device for delivering the fluid in both a normal delivery pattern and a test pulse and a conduit for conducting the fluid from the infusion device to the patient. The test pulse creates a pressure wave response in the conduit. Abnormal infusion can be detected by determining the area between a baseline and at least a portion of a pressure versus time curve representing the pressure wave response.