Zeleznik, US
Chris Zeleznik, Los Angeles, CA US
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20090090844 | BIASING APPARATUS, SYSTEMS, AND METHODS - Apparatus, methods, and systems for providing a uniform bias voltage in a biasing circuit to a plurality of pixels. The biasing circuit has a plurality of switches, including a first switch connected at a first end of a capacitor and a second end connected to a first ground. A second switch is connected at a first end to a bias voltage reference and at a second end to a gate of a biasing transistor and a second end of the capacitor. A third switch is connected at a first end to the first end of the capacitor and at a second end to the drain of the biasing transistor and a second ground. The first and the second switch are closed and the third switch is open to set a bias voltage on the capacitor. The first and second switch are open and the third switch is closed when the bias voltage is set on the capacitor. | 04-09-2009 |
Christopher Zeleznik, Los Altos, CA US
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20100309333 | IMAGE SENSORS AND IMAGE RECONSTRUCTION METHODS FOR CAPTURING HIGH DYNAMIC RANGE IMAGES - High dynamic range image sensors and image reconstruction methods for capturing high dynamic range images. An image sensor that captures high dynamic range images may include an array of pixels having two sets of pixels, each of which is used to capture an image of a scene. The two sets of pixels may be interleaved together. As an example, the first and second sets of pixels may be formed in odd-row pairs and even-row pairs of the array, respectively. The first set of pixels may use a longer exposure time than the second set of pixels. The exposures of the two sets of pixels may at least partially overlap in time. Image processing circuitry in the image sensors or an associated electronic device may de-interlace the two images and may combine the de-interlaced images to form a high dynamic range image. | 12-09-2010 |
Christopher Zeleznik, Los Angeles, CA US
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20090015692 | METHODS, SYSTEMS, AND DEVICES FOR OFFSET COMPENSATION IN CMOS IMAGERS - Methods, devices, and systems for offset compensation in an amplifier are disclosed, wherein the amplifier inputs may be exposed to large loads from an array of pixel columns coupled in parallel. During a sampling phase, an amplifier offset may be sampled by selectively coupling a first amplifier output to a first amplifier input and a second amplifier output to a second amplifier input. During a portion of the sampling phase, the first amplifier output may be buffered to a first storage element. During a different portion of the sampling phase, the second amplifier output may be buffered to a second storage element. To sense the pixel columns during an amplification phase, the first storage element and the second storage element are coupled to the first and second amplifier inputs, respectively, with the result that the amplifier offset is canceled from the amplifier output. | 01-15-2009 |
20090021623 | Systems, methods and devices for a CMOS imager having a pixel output clamp - Embodiments of a pixel read out circuit in an imager device is described. The pixel read out circuit includes an output node that is connected to a plurality of pixel cells. An output signal from a selected one of the plurality of pixel cells is applied to the output node. The pixel read out circuit also includes a clamp-out circuit that limits the magnitude of the output signal to a voltage determined by the voltage of a reference signal to prevent the output signal from reaching a level that might exceed the dynamic range of analog circuitry receiving the output signal. | 01-22-2009 |
Christopher G. Zeleznik, Cupertino, CA US
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20150163392 | Image Sensor Flicker Detection - An image sensor includes an imaging area and one or more flicker detection regions. The imaging area includes pixels that capture one or more images. Each flicker detection region includes pixels that are sampled multiple times while an image is being captured. The samples can be analyzed to detect flicker in the scene being imaged. | 06-11-2015 |
David M. Zeleznik, Middletown, CT US
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20140195967 | DATA VISUALIZATION - A graphical processor, method, and/or computer program product controls a display of user controls on a graphical user interface. A display tool displays a screen view of a data image on a display, wherein the screen view includes one or more graphical objects. A magnifier tool displays a zoomed-in view of a portion of the screen view, wherein the zoomed-in view is superimposed on the screen view, and wherein the zoomed-in view remains turned on until turned off by the user. A crosshair tool targets a graphical object in the zoomed-in portion of the view. A decoration tool displays a user control for a targeted graphical object. | 07-10-2014 |
James William Zeleznik, Roanoke, VA US
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20110125449 | METHOD AND SYSTEM FOR RAPID MODELING AND VERIFICATION OF EXCITATION SYSTEMS FOR SYNCHRONOUS GENERATORS - A system for collecting frequency response data from a generator system including: applying a perturbing signal to a signal input of an exciter system for a synchronous generator; collecting data regarding signal output from a multiplicity of signal points in the exciter system; transforming the collected data to predict a signal response at a signal output in the system different from the signal points used for collecting data, and analyzing the frequency response of the system. | 05-26-2011 |
Joseph A. Zeleznik, Poughkeepsie, NY US
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20100215753 | Agglomerated particles including an active agent coprocessed with silicified microcrystalline cellulose - A solid dosage form is provided which includes an active agent and silicified microcrystalline cellulose, the dosage form formed by a) combining a wetted active agent with dry silicified microcrystalline cellulose in a dryer to form agglomerated particles; and b) incorporating the agglomerated particles into the solid dosage form. In certain preferred embodiments, step b comprises combining said silicified microcrystalline cellulose, said active agent, and colloidal silicon dioxide in a dryer. Preferably, the dryer is a spray dryer, and, in certain embodiments, the active agent may be an herbal extract. | 08-26-2010 |
Matthew A. Zeleznik, Pittsburgh, PA US
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20100147076 | Proof-mass with supporting structure on integrated circuit-MEMS platform and method of fabricating the same - Provided is a micro-electromechanical-system (MEMS) device including a substrate; at least one semiconductor layer provided on the substrate; a circuit region including at least one chip containing drive/sense circuitry, the circuit region provided on the at least one semiconductor layer; a support structure attached to the substrate; at least one elastic device attached to the support structure; a proof-mass suspended by the at least one elastic device and free to move in at least one of the x-, y-, and z-directions; at least one top electrode provided on the at least one elastic device; and at least one bottom electrode located beneath the at least one elastic device such that an initial capacitance is generated between the at least one top and bottom electrodes, wherein the drive/sense circuitry, proof-mass, supporting structure, and the at least one top and bottom electrodes are fabricated on the at least one semiconductor layer. | 06-17-2010 |
20120262192 | HIGH-IMPEDANCE MEMS SWITCH - A MEMS switch. The MEMS switch has a high-impedance state and a low-impedance state for biasing a capacitive sensor, and includes an actuation bias terminal, a sense bias terminal, a switch control terminal, a sense node terminal, and a spring. The actuation bias terminal and the sense bias terminal reside in a released region of the switch. The sense bias terminal is physically coupled to the actuation bias terminal by a dielectric which electrically isolates the sense bias terminal from the actuation bias terminal. The switch control terminal is separated from the sense bias terminal by a first air gap, and the sense node terminal is separated from the sense bias terminal by a second air gap. The spring supports the actuation bias terminal, the sense bias terminal, and the dielectric. | 10-18-2012 |
20140270204 | RESET CIRCUIT FOR MEMS CAPACITIVE MICROPHONES - A method of initiating a reset sequence for a MEMS capacitive microphone. The method includes monitoring an output of a microphone and detecting a mute condition in the output of the microphone indicative of a fault condition. The method also includes activating a timing circuit. The timing circuit is configured to indicate when a certain time period since the initiation of the timing circuit has elapsed. Upon expiration of the time period indicated by the timing circuit, a microphone reset sequence is initiated. | 09-18-2014 |
20140270262 | ADJUSTABLE BIASING CIRCUITS FOR MEMS CAPACITIVE MICROPHONES - An adjustable charge pump system. The system includes a voltage regulator, a clock circuit, a voltage adjustment circuit, and a charge pump. The voltage regulator is configured to receive an input voltage and output a regulated voltage. The clock circuit is coupled to the voltage regulator and receives the regulated voltage. The voltage adjustment circuit is coupled to the voltage regulator and is configured to receive the regulated voltage and to output a driver voltage. The charge pump includes a plurality of stages. The output of the adjustable charge pump system is adjusted by disabling one or more stages of the first stage and the plurality of subsequent stages. | 09-18-2014 |
Michael F. Zeleznik, Lagrange Park, IL US
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20080240024 | METHOD AND APPARATUS FOR DETECTING AND IDENTIFYING SPECTRUM OPPORTUNITIES | 10-02-2008 |
20090052499 | SYSTEM, METHOD AND APPARATUS FOR MANAGING COMMUNICATION IN A PUBLIC SAFETY COMMUNICATION NETWORK - A method, system and apparatus for managing communication in a Public Safety Communication Network (PSCN). The PSCN includes a plurality of Mobile Stations (MSs) ( | 02-26-2009 |
20090054095 | SYSTEM AND METHOD FOR PERFORMING COMMUNICATION IN A WIRELESS COMMUNICATION NETWORK - A wireless communication network is provided in which a plurality of radio devices achieve frequency diversity. By utilizing cognitive capability within the radio devices to iteratively select frequency sets, a lowest cardinality frequency set is generated and used to communicate amongst the plurality of radio devices. Each radio device can have different hardware, as the iterative selection of frequency set can take into account the different hardware capabilities of the radio devices. | 02-26-2009 |
20090325499 | THRESHOLD SELECTION FOR BROADCAST SIGNAL DETECTION | 12-31-2009 |