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Rizwan
Rizwan Arkam, Topi PK
| Patent application number | Description | Published |
|---|---|---|
| 20110061139 | METHOD TO MEASURE 3 COMPONENT OF THE MAGNETIC FIELD VECTOR AT NANOMETER RESOLUTION USING SCANNING HALL PROBE MICROSCOPY - Scanning hall probe microscopy is used to measure 3 components of the magnetic field vector at nanometer resolution by connecting of Hall probe to the end of the piezo scanner, then gluing of the sample to the sample holder, thereafter positioning of the SHPM head under the optical microscope with approximately ×40 magnification, then moving back of the slider puck around approximately 30 steps or moving the sensor or sample back by sufficient amount using motors, piezo or other positioner such that signal decays to negligible levels; thereafter setting the temperature of cryostat or to desired temperature, then offset nulling of the Hall sensor in gradiometer or normal conditions, and finally setting of the scan area, speed, resolution and the acquisition channels through SPM control program. | 03-10-2011 |
Rizwan Bashirullah, Gainesville, FL US
| Patent application number | Description | Published |
|---|---|---|
| 20100001724 | IC Microfluidic Platform With Integrated Magnetic Resonance Probe - An integrated hybrid microfluidic-IC platform for single cell manipulation and microscopy and method for making the platform. In particular, the integrated platform can incorporate a planar microcoil embedded in a silicon substrate that is subsequently used to fabricate a CMOS IC for the platform. The CMOS IC circuitry provides a two dimensional array of microsites that can incorporate an electrode (microelectrode), sensors, and control logic. A direct conversion receiver (DCR) can also be embedded within the CMOS circuitry to create an integrated IC platform. A microfluidic chamber can be formed on the integrated IC platform. The integrated hybrid platform can provide an increased sensitivity for mass limited samples and high resolution manipulation of biological cells. In addition, individual cell manipulation can be performed via dielectrophoresis (DEP). | 01-07-2010 |
Rizwan Bashirullah, Newberry, FL US
| Patent application number | Description | Published |
|---|---|---|
| 20090292336 | NEURAL INTERFACE SYSTEMS AND METHODS - In one embodiment, a neural interface system includes an implantable neural probe having a flexible substrate, electrodes that extend from the substrate that are adapted to contact neural tissue of the brain, a signal processing circuit configured to process neural signals collected with the electrodes, and a wireless transmission circuit configured to wirelessly transmit the processed neural signals, and a backend computing device configured to wirelessly receive the processed neural signals, to process the received signals to reconstruct the collected neural signals, and to analyze the collected neural signals. | 11-26-2009 |
Rizwan Murji, Chicago, IL US
| Patent application number | Description | Published |
|---|---|---|
| 20090278610 | POWER AMPLIFIER OUTPUT VOLTAGE REDUCTION METHOD - An apparatus and method are provided for reducing the output voltage in a power amplifier. The power amplifier contains a power supply, an amplifier stage, an impedance matching circuit, and a voltage reduction unit connected between the power supply and the amplifier stage. A power amplifier device within the amplifier stage has a gain bandwidth that covers multiple frequency bands. The output voltage of the power amplifier device is a composite voltage that contains fundamental and harmonic components that lie within the gain bandwidth. The voltage reduction unit reduces the supply voltage of the power amplifier device such that the composite output voltage is less than the breakdown voltage in the power amplifier device. The impedance matching circuit is coupled to the power amplifier device output and provides impedance matching for output signals of the fundamental and harmonic frequencies. | 11-12-2009 |