Microchip Technology Inc.

Sam E Alexander

Lee Furey

Roger D St Amand

Randy L Yach

John R Austin

Kumen Blake

Patrick Richards

William F Gallagher, Iii

Youbok Lee

Ezana Haile Aberra

Shinichiro Inui

Ezana Haile

Peter H Sorrells

Stephen Loyer

Shannon Poulin

Richard Appel

Sean Cappy

Chihmin Yu

Ron Salesky

A system includes a conditioning circuit, resistors connected to pins of the conditioning circuit, and measurement sensors connected to pins of the conditioning circuit. The conditioning circuit is configured to determine resistance values of the resistors and to determine a set of addresses for the measurement sensors based upon a combination of the resistance values of the resistors.

Multi-channel remote temperature monitor

Facial cleaning device

An integrated temperature sensor device has a temperature sensor configured to provide an analog signal corresponding to an ambient temperature, an analog-to-digital converter receiving the analog signal and a programmable digital filter coupled to the analog-to-digital converter.

Digital temperature sensor with integrated digital temperature filter

A radio frequency identification tag device having a sensor input which modifies a tag data word bitstream read by an interrogator/tag detector. The sensor input may be a switch contact(s), digital and/or analog. The sensor input may be voltage, current, pressure, temperature, resistance, acceleration, moisture, gas and the like. Power from the radio frequency interrogator/tag reader may be used to power the circuits of the radio frequency tag device, which in turn may supply power to any sensor connected thereto.

Radio frequency identification tag device with sensor input

A radio frequency identification (RFID) tag device having a pulse position modulation (PPM) decoder circuit which calculates a relative frequency relationship between an internal clock-oscillator of the RFID tag device and an external PPM source such as a RFID tag reader, and then synchronizes the RFID tag device PPM decoder circuit to the required precision for reliable PPM symbol decoding. The PPM decoder is synchronized by measuring the &ldquo;counts per pulse&rdquo; (CPP) from a calibration cycle having a plurality of pulses in a single symbol frame.

Method, system and apparatus for initiating and maintaining synchronization of a pulse position modulation (PPM) decoder with a received PPM signal

An improved high quality factor capacitive device is implemented on a single, monolithic integrated circuit. The new layout techniques improve the quality factor (Q) of the capacitor by reducing intrinsic resistance of the capacitor by reducing the distance between the metal contacts of the top and bottom conductive plates. The layout techniques require laying out the top conductive plate of the capacitor in strips such that metal contacts from the bottom conductive plate pass in between the strips and through the dielectric layer. Alternatively, the apertures may be etched into the top conductive plate so that metal contacts pass through the apertures and connect to the bottom conductive plate.

High quality factor capacitor

An improved voltage clamp for operating with wireless communication input circuits over the RF band. The clamp provides for symmetrical clamping for excessive positive and negative input voltage excursions. The clamp does not exact a current penalty when operating in the non-excessive positive and negative input voltage regimes. The clamp is comprised of an input node, a capacitor, a MOS transistor, a diode and a ground potential node.

Positive and negative voltage clamp for a wireless communication input circuit

An improved master-slave flip-flop that is characterized by a novel clock generator. The improved flip-flop preserves the true master-slave relationship by ensuring a two step latching process is executed by non-overlapping clocks. The clock generator features an inverter in combination with a current limiter. The current limiter has the effect of shifting the trip point of the inverter such that non-overlapping clocks may be derived from a single master clock signal or a master clock signal and its complement.

Apparatus and method for an improved master-slave flip-flop with non-overlapping clocks

An improved integrated circuit transponder device is presented comprising, in combination, a single, externally wireless package enclosing an integrated circuit semiconductor chip, a coil within the package being selectively exposed to an electromagnetic field, and a detection portion on the integrated circuit semiconductor chip and being coupled to each end of the coil for detecting when voltages at each end of the coil are approximately equal over a period of time. The detection portion includes an exclusive NOR gate coupled to each end of the coil for determining when the coil voltages are equal, and the output of the exclusive NOR gate is input to a filter before being delivered to the remainder of the device circuitry.

Growing community of inventors

Phoenix, AZ, United States of America

Sam E Alexander