| Patent application number | Description | Published |
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| 20080230894 | Carbon nanotubes for active direct and indirect cooling of electronics device - A system for cooling a semiconductor device is disclosed. The system includes a lid encasing the semiconductor device, a first plurality of carbon nanotubes disposed within the lid, and a fluid system configured to pass a fluid through the lid. Furthermore, a second system for cooling a semiconductor device is disclosed. The second system includes a lid, a first plurality of carbon nanotubes disposed within the lid, and a fluid system configured to pass a fluid through the lid. The lid is configured to be mounted over and encase the semiconductor device. Additionally, a method for cooling a semiconductor device is disclosed. The method includes disposing a first plurality of carbon nanotubes within a lid, mounting the lid over the semiconductor device, and passing a fluid through the lid. | 09-25-2008 |
| 20100032141 | COOLING SYSTEM UTILIZING CARBON NANOTUBES FOR COOLING OF ELECTRICAL SYSTEMS - A cooling system to cool the airflow through a electrical system includes a CNT heat exchanger module disposed within a housing of the electrical system, a cooling device configured to receive a coolant, a unit board disposed within the housing of the electrical system, and an air flow device configured to pass air across at least a portion of the unit board and at least a portion of the CNT heat exchanger module. The CNT heat exchanger module includes a member having a hole defined therethrough and a plurality of carbon nanotubes (CNTs) attached to the member. The coolant is propagated through the hole in the member so as to dissipate the heat generated by the electrical system. | 02-11-2010 |
| 20100175851 | MODULAR ABSORPTION HEAT SINK DEVICES FOR PASSIVE COOLING OF SERVERS AND OTHER ELECTRONICS - A passive heat sink for cooling an electronic component such as a high-performance processor. The heat sink includes a shell with a surface that is positionable adjacent a heat generating surface of the electronic component. The shell includes a heat exchanger portion with cooling fins extending outward and positioned in a fan-provided airflow. A generator compartment is provided within the shell with a generator vessel for containing an absorbent, and the generator compartment is maintained at a pressure lower than ambient. The generator compartment conducts heat away from the electronic component to the absorbent in the generator vessel. An absorber compartment, at a pressure lower than the generator compartment, is provided within the shell above the generator compartment, and, in use, an absorption refrigeration cycle contained within the shell is activated by heat from the electronic component. A bubble pump moves absorbent from the generator compartment to the absorber compartment. | 07-15-2010 |
| Patent application number | Description | Published |
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| 20080317160 | CODE-MODULATED PATH-SHARING MULTI-SIGNAL SYSTEMS - Described herein are code-modulated multi-signal systems. In one embodiment, a multi-signal system receives multiple input signals and code-modulates each input signal with a unique code to distinguish the input signal from the other input signals. The input signals may come from multiple antennas, multiple sensors, multiple channels, etc. The code-modulated signals are then combined into a combined signal that is sent through shared blocks and/or transmitted across a shared medium in a shared path. After shared processing and/or shared transmission, the individual signals are recovered using matched filters. Each matched filter contains a code corresponding to one of the unique codes for recovering the corresponding signal from the combined signal. The recovered signals may then be inputted to additional processors for further processing. | 12-25-2008 |
| 20090021307 | MULTI-BAND, INDUCTOR RE-USE LOW NOISE AMPLIFIER - Described herein are multi-band LNAs that reuse inductors for different frequency bands to minimize chip area. In an embodiment, a multi-band LNA is capable of operating in a narrowband (NB) and a wideband (WB) while reusing at least one input impedance matching inductor and at least one load inductor for both bands. The reuse of inductors results in a more efficient use of chip area. In an exemplary embodiment, the LNA comprises a common source transistor and a common gate transistor. In this embodiment, the LNA operates in a common source configuration using the common source transistor to amplify input signals in the NB, and operates in a common gate configuration using the common gate transistor to amplify input signals in the WB. The LNA reuses an input impedance matching inductor and a load inductor in both configurations, and thus both bands. | 01-22-2009 |
| 20090075613 | DISTRIBUTED RF FRONT-END FOR UWB RECEIVERS - Described herein are ultra wide-band distributed RF (UWB-DRF) front-end receivers comprising composite cells distributed along transmission lines, where each composite cell comprises a low-noise amplifier (LNA) merged with a mixer. By merging the LNA and the mixer in each composite cell, the power consumption and chip area of the RF front-end is reduced. Further, the distributed architecture of the RF front-end allows it to operate over a wide bandwidth by absorbing the parasitic capacitances of the composite cells into the transmission lines of the RF-front end. Embodiments of the RF front-end provide wideband flat gain, low noise figure (NF), wideband linearity, and wideband matching at the inputs of the RF front-end. In an embodiment, a programmable resistance at the termination of the RF transmission line allows the RF front-end to trade off a few decibels of mismatch at the RF input for higher gain and lower NF. | 03-19-2009 |
| 20090088115 | Novel Distributed Direct Conversion Receiver (DDCR) for UWB Systems - A novel DDCR RF front-end for use in UWB applications combining a distributed approach which provides wideband functionality of the RF front-end with I-Q requirement of DCRs. The distributed architecture uses composite cells of a merged LNA and mixer along the input RF T-line. | 04-02-2009 |
