Rumberg
Axel Rumberg, Karlsruhe DE
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20080291117 | Metamaterial Having the Capability of Broadband Left-Hand Guidance of Electromagnetic Waves - A metamaterial having a negative refractive index is presented, which has a dielectric carrier material ( | 11-27-2008 |
20130204101 | Apparatus and Method for Detecting Skin Cancer Using THz Radiation - An apparatus is configured to detect skin cancer using THz radiation. A high frequency source generates a high-frequency signal. A power splitter divides the high-frequency signal between a transmission branch and a reception branch. A first frequency multiplier multiplies the frequency of the high-frequency signal. A transmission antenna emits the multiplied high-frequency signal as THz radiation. A frequency generator generates a low-frequency signal. A mixer mixes the high-frequency and low-frequency signals to generate a mixed-frequency signal. A second frequency multiplier multiplies the mixed-frequency signal. A reception antenna device receives the THz radiation and generates a THz signal. The mixing device mixes the THz signal with multiplied mixed-frequency signal to generate a measurement signal. The evaluation device evaluates the measurement signal. | 08-08-2013 |
Brandon David Rumberg, Beckley, WV US
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20140269092 | CONTINUOUS-TIME FLOATING GATE MEMORY CELL PROGRAMMING - Aspects of a continuous-time memory cell circuit are described. In various embodiments, the memory cell circuit may comprise a memory cell, a current source coupled to the memory cell, and circuitry for programming the memory cell at an adaptive rate, based on a target voltage for programming, using a feedback loop between a gate terminal of the memory cell and a reference control input. Based on the circuitry for programming, the memory cell may be programmed according to various voltage and/or current references, by linear injection and/or tunneling mechanisms. According to various aspects, the circuitry for programming drives a memory cell to converge to a voltage target for programming within a short period of time and to a suitable level of accuracy. | 09-18-2014 |
20140281658 | COMPRESSED SAMPLING AND MEMORY - Aspects of a low power memory buffer are described. In one embodiment, a sampling rate of a signal is adjusted to identify extrema of a signal. An extrema pulse is generated and, in response to the extrema pulse, a time segment and potential value of the signal are stored in a memory. In other aspects, rising and falling slopes of the signal are tracked to identify a local maximum and a local minimum of the signal. In this scenario, an extrema pulse is generated for each of the local maximum and minimum, and time segment and potential values are stored for the local maximum and minimum. Generally, the storage of analog values of the signal at an adjusted sampling rate is achieved with low power, and the signal may be reconstructed at a later time. | 09-18-2014 |
Brandon David Rumberg, Morgantown, WV US
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20150234443 | SELECTIVE WAKEUP OF DIGITAL SENSING AND PROCESSING SYSTEMS USING RECONFIGURABLE ANALOG CIRCUITS - According to some embodiments, a sensor network may be provided with re-programmable and/or reconfigurable analog circuitry configured to monitor data collected by the sensor network. The re-programmable and/or reconfigurable analog circuitry may also generate a wakeup signal in response to a defined wakeup event detected by the sensor network. | 08-20-2015 |
Thomas Rumberg, Brookfield, WI US
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20140095400 | Mobile Application for a Vendor Management System - The present invention generally relates to a mobile vendor management software application and system or (“VMS”) system that allow users to better manage the procurement and management of outside sources of labor. The software application may be resident on a mobile device and allows a user of the mobile device to communicate with a VMS system or database in order to perform traditional VMS functions. The mobile VMS application may also allow for additional functionality by integration of various functions and features available on the mobile device into the software application. | 04-03-2014 |