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Gevorg
Gevorg Nahapetian, Pleasanton, CA US
| Patent application number | Description | Published |
|---|---|---|
| 20090003840 | Controlling a bias voltage for a Mach-Zehnder modulator - In one embodiment, the present invention includes a controller coupled to an optical modulator to receive a dither signal, determine a difference between the dither signal and a previous dither signal, determine a derivative of the difference with respect to a bias voltage difference between first and second bias voltages, and control a bias voltage for the optical modulator based on the derivative. Other embodiments are described and claimed. | 01-01-2009 |
Gevorg Sargsyan, Lakewood, CO US
| Patent application number | Description | Published |
|---|---|---|
| 20110014088 | COMPACT NATURAL GAS STEAM REFORMER WITH LINEAR COUNTERCURRENT HEAT EXCHANGER - The present invention is natural gas steam reforming apparatus for generating an output gas mixture of carbon dioxide and hydrogen. The apparatus is made from two enclosures. A first enclosure contains a source of water, superheated steam, and channels, located within a lower portion of the first enclosure, which contain a water-gas-shift catalyst for converting CO into CO | 01-20-2011 |
| 20110046244 | NATURAL GAS STEAM REFORMING METHOD WITH LINEAR COUNTERCURRENT HEAT EXCHANGER - The present invention is a natural gas steam reforming method for generating an output gas mixture of carbon dioxide and hydrogen, including the following steps. (1) Combusting a portion of the natural gas with an oxidizing agent to generate heat, superheated steam, and a gas mixture of carbon dioxide, carbon monoxide, and hydrogen. (2) Steam reforming the gas mixture with additional superheated steam under steam-rich conditions to transform a remaining portion of the natural gas into carbon dioxide, carbon monoxide, and hydrogen. (3) Water-gas-shifting any residual carbon monoxide into additional carbon dioxide and additional hydrogen by utilizing a water-gas-shift catalyst downstream of the steam reforming step, thereby producing an effluent gas mixture that is predominantly carbon dioxide and hydrogen. (4) Boiling water in a top-to-bottom linear countercurrent heat exchanger to generate the superheated steam by transferring heat released in the water-gas-shifting step, where as the water is gravitationally and thermally stratified from top to bottom with a top portion boiling into steam, the steam continues to rise and is additionally heated in the top-to-bottom linear countercurrent heat exchanger. (5) And, utilizing the superheated steam produced as a reactant in the steam reforming step and the water-gas-shifting step to assist in reformation of the natural gas into carbon dioxide and hydrogen. | 02-24-2011 |
Gevorg Torjyan, Fremont, CA US
| Patent application number | Description | Published |
|---|---|---|
| 20110119531 | Architecture, System And Method For Compressing Repair Data In An Integrated Circuit (IC) Design - Architecture, system and method for providing compression of repair data in an IC design having a plurality of memory instances. In one embodiment, the repair data storage method includes determining repair data for each of the memory instances and compressing the repair data into a compressed format that is stored in a shared nonvolatile storage common to the memory instances. | 05-19-2011 |