Gurcan
Hakan Ates Gurcan, Los Gatos, CA US
Patent application number | Description | Published |
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20100079195 | PROTECTED POWER SWITCH WITH LOW CURRENT CONSUMPTION - Under-voltage, over-voltage, and temperature detectors disposed in a switching circuit are turned on periodically and in response to an oscillating signal having a low duty cycle. Accordingly, because the voltage and temperature detectors remain off for long durations, their operating currents, and thus the operating current of the switching circuit is substantially reduced. The switching circuit has a current limiting function which is disabled when the switch current is below a threshold value, thereby further decreasing the current consumption of the switching circuit at low switch current levels. | 04-01-2010 |
20100237839 | HYBRID LOW DROPOUT VOLTAGE REGULATOR CIRCUIT - A voltage regulator circuit includes a digital control block, an amplifier and a transistor. The digital control block receives a first reference voltage and a feedback voltage, converts the received voltages from analog to digital signals, performs an integration operation on the converted signals, and converts the result of the integration operation to an analog signal. The amplifier is responsive to the output of the digital control block and to a regulated output voltage of the regulator circuit. The transistor has a first terminal responsive to the output of the amplifier, a second terminal that receives the input voltage being regulated, and a third terminal that supplies the regulated output voltage. The transistor may be an NMOS or a bipolar NPN transistor. The feedback voltage may be generated by dividing the regulated output voltage. The digital control block optionally generates a biasing signal to bias the amplifier. | 09-23-2010 |
20110074368 | POWER DELIVERY SYSTEM WITH SURGE HANDLING CAPABILITY - A sensing circuit senses a load current to generate a sensed signal. A comparator's output is set to a first value if the sensed signal is equal to or greater than a reference signal, and to a second value if the sensed signal is smaller than the reference signal. A one-shot timer generates a logic signal that transitions from a first state to a second state in response to a first occurrence of the first value of the comparator's output, or optionally in response to each subsequent occurrence of the first value of the comparator's output if the one-shot timer is rearmed. A selector sets a first limit for the current delivered to the load in response to the first state of the logic signal, and a second limit for the current delivered to the load in response to the second state of the logic signal. | 03-31-2011 |
20130271195 | Configurable Power Supply Integrated Circuit - A power integrated circuit includes, in part, a multitude of controllers, a multitude of pulse-width generators, a multitude of output stages and a configuration matrix. Each controller is adapted to be responsive to a feedback signal and a reference signal to generate a control signal carrying pulse width information. Each control signal causes a difference between an associated output voltage feedback signal and the reference signal to be less than a predefined value. Each pulse-width generator is associated with and responsive to a different one of the controllers to generate a pulse-width modulated signal in response. The configuration matrix selectively couples the plurality of pulse-width generators to the output stages. | 10-17-2013 |
Havva Fitnat Gurcan, Santa Cruz, CA US
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20160000079 | Novel small molecule inhibitors of biofilm formation and the novel use of previously identified compounds for inhibition of biofilm formation and applications for drug therapy and medical device coating - Novel compounds and the novel use a class of previously identified small molecules for the inhibition of biofilm formation. Inhibition of biofilm formation can play a very important role in contributing to pathogenicity. Bacteria in the biofilm state have been shown to be 10-10,000-fold less susceptible to antibiotic treatment. Estimations made by the Centers for Disease Control (CDC) and the National Institutes of Health (NIH) attribute 65% to 80% of human infections as biofilm mediated. Consequently, biofilm formation is often responsible for chronic infections due to bacterial persistence despite antibiotic treatment. | 01-07-2016 |
Mustafa Gurcan, Southwater, Horsham, West Sussex GB
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20150110160 | DATA TRANSMISSION METHOD AND APPARATUS - A method for data transmission in a radio data transmission system having a plurality of parallel single-input single-output or multiple-input multiple-output channels over which the data is transmitted, the data represented by a plurality of data symbols, the data symbols being spread prior to transmission by a plurality of spreading sequences is described. The method comprises determining a system value λk for each signature sequence k of a plurality of signature sequences K, wherein the system value λk is indicative of a signal-to-noise ratio of the associated signature sequence k; determining a number of signature sequences K* to be used for spreading the data symbols in accordance with the system values λk associated with the plurality of signature sequences K, selecting the signature sequences S to be used to spread the data symbols from the plurality of signature sequences K in accordance with the system values λk associated with the plurality of signature sequences K, wherein the number of signature sequences selected corresponds to the determined number of signature sequences K*, and spreading the data symbols using the selected signature sequences S. | 04-23-2015 |
Mustafa Gurcan, Southwater GB
Patent application number | Description | Published |
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20150110160 | DATA TRANSMISSION METHOD AND APPARATUS - A method for data transmission in a radio data transmission system having a plurality of parallel single-input single-output or multiple-input multiple-output channels over which the data is transmitted, the data represented by a plurality of data symbols, the data symbols being spread prior to transmission by a plurality of spreading sequences is described. The method comprises determining a system value λk for each signature sequence k of a plurality of signature sequences K, wherein the system value λk is indicative of a signal-to-noise ratio of the associated signature sequence k; determining a number of signature sequences K* to be used for spreading the data symbols in accordance with the system values λk associated with the plurality of signature sequences K, selecting the signature sequences S to be used to spread the data symbols from the plurality of signature sequences K in accordance with the system values λk associated with the plurality of signature sequences K, wherein the number of signature sequences selected corresponds to the determined number of signature sequences K*, and spreading the data symbols using the selected signature sequences S. | 04-23-2015 |
Mustafa Kubilay Gurcan, Horsham GB
Patent application number | Description | Published |
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20140369320 | SIGNATURE SEQUENCE SELECTION, SYSTEM VALUE BIT LOADING AND ENERGY ALLOCATION METHOD AND APPARATUS FOR MULTICODE SINGLE-INPUT SINGLE-OUTPUT AND MULTIPLE-INPUT MULTIPLE-OUTPUT PARALLEL CHANNELS - A method of transmitting data over a radio data transmission system having a plurality of K parallel single-input single-output or multiple-input multiple-output channels, the method comprising transmitting data at a rate b | 12-18-2014 |