DIRECT REFERENCE SUBTRACTION SYSTEM FOR CONTROL OF OPTICAL TRANSMITTERS
Granted: December 25, 2014
Application Number:
20140376906
An optical measurement system configured to determine whether an optical transmitter signal requires calibration is disclosed. In an implementation, the system includes an optical transmitter configured to emit electromagnetic radiation in limited spectrums of wavelengths at amplitudes based upon one or more transmission signals, and an optical sensor configured to detect the electromagnetic radiation in the limited spectrums of wavelengths and to generate a signal in response thereto.…
SYSTEM AND METHOD TO DRIVE TOUCH PANEL TO MEASURE HOVER
Granted: December 25, 2014
Application Number:
20140375598
Techniques in accordance with the present disclosure allow the detection of hover events and/or touch events performed over the touch panel without requiring that the touch panel be equipped with additional hardware and/or materials. In one or more implementations, the apparatus includes a touch panel controller configured to operatively couple to a touch panel sensor. The touch panel sensor includes at least one drive electrode and at least one sense electrode. The touch panel…
MDAC with differential current cancellation
Granted: December 25, 2014
Application Number:
20140375487
Various embodiments of the invention provide for cancellation of a residue amplifier output charging current at the reference voltage source of the reference buffer thereby preventing the charging current from altering the effective reference voltage of a reference buffer. In certain embodiments, current cancellation is accomplished by subtracting a current of the same magnitude.
Transponder
Granted: December 11, 2014
Application Number:
20140361879
Proposed is a transponder for receiving a wireless electromagnetic interrogation signal and for transmitting a wireless electromagnetic response signal with a first coil acting as an antenna for generating a first wired electrical receive signal from the interrogation signal, and with at least one further coil acting as an antenna for generating a further wired electrical receive signal from the interrogation signal, wherein an axis of the first coil and an axis of the further coil are…
PRECISION ALIGNMENT UNIT FOR SEMICONDUCTOR TRAYS
Granted: December 11, 2014
Application Number:
20140361480
A precision alignment unit and techniques are described that include a tray assembly configured to be used in a testing system, where the tray assembly includes at least one pocket formed in the tray assembly, the pocket configured to contain an integrated circuit chip, and at least one pin pass-through, and a device positioning unit including at least one alignment device configured to extend through the at least one pin pass-through. In implementations, a process for using the…
Micromechanical sensor
Granted: December 4, 2014
Application Number:
20140352433
A micromechanical sensor comprising a substrate (5) and at least one mass (6) which is situated on the substrate (5) and which moves relative to the substrate (5) is used to detect motions of the sensor due to an acceleration force and/or Coriolis force which occur(s). The mass (6) and the substrate (5) and/or two masses (5, 7) which move toward one another are connected by at least one bending spring device (6). The bending spring device (6) has a spring bar (9) and a meander (10),…
Programmable mixed-signal input/output (IO)
Granted: December 4, 2014
Application Number:
20140354328
Techniques are described for providing highly integrated and configurable IO ports for integrated circuits that can be individually configured for a variety of general purpose digital or analog functions, such as multiple channel analog-to-digital converters (ADC), multiple channel digital-to-analog converters (DAC), multiplexers, GPIOs, analog switches, switch and multiplexers, digital logic level translators, comparators, temperature sensors and relays, and so forth. The configurations…
Microgyroscope for Determining Rotational Movements About Three Spatial Axes which are Perpendicular to One Another
Granted: November 27, 2014
Application Number:
20140345379
A micro gyroscope for determining rotational movements about three spatial axes x, y and z, which are perpendicular to one another has a substrate (I) on which a plurality of masses (2, 3) oscillating tangentially about the z axis, which is perpendicular to the substrate (I), are arranged. The oscillating masses (2, 3) are fastened on the substrate (I) by means of springs (5, 6, 8) and tie bolts (7, 9). Driving elements (II) serve to maintain oscillating, tangential vibrations of the…
CAPACITIVE TOUCH PANEL CONFIGURED TO SENSE BOTH ACTIVE AND PASSIVE INPUT WITH A SINGLE SENSOR
Granted: November 27, 2014
Application Number:
20140347311
A capacitive touch panel includes sense electrodes arranged next to one another and drive electrodes arranged next to one another across the sense electrodes. The drive electrodes and the sense electrodes define a coordinate system where each coordinate location comprises a capacitor formed at a junction between one of the drive electrodes and one of the sense electrodes via mutual capacitance between the electrodes. The drive electrodes are configured to receive a first signal from a…
Method and Apparatus for Controlling a Multichannel TDM device
Granted: November 20, 2014
Application Number:
20140341230
A method for developing TDM data with embedded control data includes obtaining signal data and control data, formatting the signal data and the control data into a plurality of channels of a DIN signal, and transmitting the DIN signal on one line of a 3-bit TDM bus. A multichannel input device includes a control extractor receptive to the three-bit TDM bus and operative to extract CNTL data from the DIN data, a DAI receptive to the 3-bit TDM bus and the channel select input and operative…
MULTICHANNEL DIGITAL AUDIO INTERFACE
Granted: November 20, 2014
Application Number:
20140341398
A multichannel input device with automatic number-of-channels detection includes an automatic channel and bit depth detector, a digital audio interface (DAI), an analog device, and a digital-to-analog converter (DAC) coupling the DAI to the analog device. The automatic number-of-channels and bit depth detector has a BCLK input, a LRCLK input, a number of channels NCHAN output, and a bit depth B output. The DAI has a data DIN input, the BCLK input, the LRCLK input, an NCHAN input and a B…
Systems and Methods to Control DC/DC Multiphase Switching Regulators
Granted: October 9, 2014
Application Number:
20140300331
Various embodiments of the invention provide extend the switching frequency range of DC/DC multiphase switching regulators in order to overcome prior art frequency limitations in the number of available phases, for example, in low input to output ratio applications. In certain embodiments, this is accomplished by enabling partial overlap between multiple phases using asynchronous logic. The invention is easily scalable without introducing significant silicon area penalties.
INPUT COMMON MODE CONTROL USING A DEDICATED COMPARATOR FOR SENSOR INTERFACES
Granted: October 9, 2014
Application Number:
20140300415
Various embodiments of the invention allow for low-noise, high performance input common mode voltage control in capacitive sensor front end amplifiers. In certain embodiments overcome the shortcomings of the prior art by implementing a full voltage swing common mode voltage comparator in a parallel feed-forward path to compensate large common mode input signal variations.
ELECTRO-MECHANICAL RESONANCE LOOP
Granted: October 9, 2014
Application Number:
20140300425
The invention relates to a controller, and more particularly, to systems, devices and methods of controlling a sensor having a resonating mass. The controller includes: an analog-to-digital converter (ADC) unit for extracting a digitized sensor signal from the sensor signal; a phase controller for generating, based on the digitized sensor signal, a phase-controlled signal that is locked in phase with the digitized sensor signal; an amplitude controller for applying a gain to the…
Low Side NMOS Protection Circuit for Battery Pack Application
Granted: October 9, 2014
Application Number:
20140301005
An electric circuit comprising means for communicating with an external device coupled to means for measuring the charge condition of an external battery. In some embodiments, the circuit comprises at least one level shifter for changing the reference voltage of communication signals. In some embodiments, the circuit comprises a first driver and a second driver for driving external switching elements for the controlled charge and discharge of the battery.
Systems and Methods to Auto-Adjust Zero Cross Circuits for Switching Regulators
Granted: October 9, 2014
Application Number:
20140300329
Various embodiments of the present invention provide for an adaptive and accurate zero cross circuit that can operate without directly sensing an inductor current. Certain embodiments allow adjustment of a zero crossing condition while eliminating the need for a blanking time. In certain embodiments this is accomplished by detecting the effects of turning off a switch on a switching node voltage of a buck converter. Some embodiments use a counter to lengthen or shorten the delay time…
SECURE PAYMENT CARD INTERFACE
Granted: October 9, 2014
Application Number:
20140299664
The invention relates to a smartcard reader, and more particularly, to systems, devices and methods of creating a card input/output interface that allows the smartcard reader to couple to a smartcard within a secure cavity. The secure cavity is mounted on an internal side of a system housing, i.e., a smartcard socket, included in the smartcard reader. An interface chip is further attached inside the secure cavity. When the smartcard is inserted to a designated position or depth inside…
MICROELECTROMECHANICAL Z-AXIS OUT-OF-PLANE STOPPER
Granted: October 9, 2014
Application Number:
20140298910
The present invention relates to a microelectromechanical structure, and more particularly, to systems, devices and methods of incorporating z-axis out-of-plane stoppers that are controlled to protect the structure from both mechanical shock and electrostatic disturbance. The z-axis out-of plane stoppers include shock stoppers and balance stoppers. The shock stoppers are arranged on a cap substrate that is used to package the structure. These shock stoppers are further aligned to a proof…
Micro-Electromechanical Structure with Low Sensitivity to Thermo-Mechanical Stress
Granted: October 9, 2014
Application Number:
20140298909
The invention relates to a microelectromechanical structure, and more particularly, to systems, devices and methods of compensating the effect of the thermo-mechanical stress by incorporating and adjusting elastic elements that are used to couple a moveable proof mass to anchors. The proof mass responds to acceleration by displacing and tilting with respect to a moveable mass rotational axis. The thermo-mechanical stress is accumulated in the structure during the courses of…
OPTICAL GESTURE SENSOR HAVING A LIGHT MODIFYING STRUCTURE
Granted: September 25, 2014
Application Number:
20140284462
A gesture sensing device includes a single light source and a multiple segmented single photo sensor, or an array of photo sensors, collectively referred to herein as segmented photo sensors. A light modifying structure relays reflected light from the light source onto different segments of the segmented photo sensors. The light modifying structure can be an optical lens structure or a mechanical structure. The different segments of the photo sensor sense reflected light and output…
