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Hohlfeld
Dennis Hohlfeld, Veldhoven NL
| Patent application number | Description | Published |
|---|---|---|
| 20090140443 | Microstructure with Enlarged Mass and Electrode Area for Kinetic to Electrical Energy Conversion - A microstructure has a substrate, a fixed electrode having a plurality of fixed fingers fixed to the substrate, a movable electrode having a body ( | 06-04-2009 |
| 20090284102 | System and Method for Resonance Frequency Tuning of Resonant Devices - Tunable vibration energy scavengers and methods of operating the same are disclosed. The disclosed energy scavengers comprise a beam with a main body, wherein the beam comprises at least one flap and means for changing a shape of the at least one flap, wherein the at least one flap is physically attached to the main body along a longitudinal side of the main body. The disclosed methods comprise tuning the shape of the at least one flap, thereby tuning the stiffness of the structure. | 11-19-2009 |
| 20100187835 | Electromagnetic Energy Scavenger Based on Moving Permanent Magnets - An electromagnetic energy scavenger ( | 07-29-2010 |
| 20110074247 | Systems and Methods for Resonance Frequency Tuning of Micromachined Structures - A microstructure according to embodiments of the present invention comprises a substrate, and a resonant structure having a resonance frequency and comprising a seismic mass and suspension elements for suspending the seismic mass at two opposite sides onto the substrate. The substrate is adapted for functioning as a tuning actuator adapted for applying stress onto the suspension elements, thus changing the stiffness of the suspension elements. This way, the resonance frequency of the microstructure may be adapted to input vibration frequencies which may vary over time or may initially be unknown. By adapting the resonance frequency of the resonant structure, a suitable power may be generated, even in circumstances of variable input frequencies. | 03-31-2011 |
Julius K. Hohlfeld, Wexford, PA US
| Patent application number | Description | Published |
|---|---|---|
| 20080198738 | Thin film structure with controlled lateral thermal spreading in the thin film - An apparatus includes a magnetic layer, a heat sink layer, and a thermal resistor layer between the magnetic layer and the heat sink layer. The apparatus may be configured as a thin film structure arranged for data storage. The apparatus may also include an interlayer positioned between the magnetic layer and the thermal resistor layer. | 08-21-2008 |
| 20110096432 | Thin Film Structure With Controlled Lateral Thermal Spreading In The Thin Film - An apparatus includes a magnetic layer, a heat sink layer, and a thermal resistor layer between the magnetic layer and the heat sink layer. The apparatus may be configured as a thin film structure arranged for data storage. The apparatus may also include an interlayer positioned between the magnetic layer and the thermal resistor layer. | 04-28-2011 |
Julius Kurt Hohlfeld, Wexford, PA US
| Patent application number | Description | Published |
|---|---|---|
| 20100097901 | Polarization conserving near field transducer for optical recording on magnetic media - In a particular embodiment, an optical transducer includes at least three optically conductive blades arranged symmetrically about a center gap. The optical transducer is adapted to receive polarized light from a light source and to focus the polarized light onto a recording medium while conserving polarization of the polarized light. | 04-22-2010 |
Matthew Hohlfeld, San Diego, CA US
| Patent application number | Description | Published |
|---|---|---|
| 20090077263 | METHODS AND APPARATUS FOR DATASET SYNCHRONIZATION IN A WIRELESS ENVIRONMENT - Methods, apparatus, systems, and computer program products are provided for wirelessly synchronizing datasets that are stored on a wireless device and at a network device, such as a network server or database. Present aspects provide for a simplified and efficient synchronization process, whereby synchronization can be completed in a single round-trip of wireless communication between the wireless device and the network device. Single round-trip synchronization provides for less use of network resources, shorter overall synchronization cycle times and lessens the likelihood of wireless network failures, such as call drops or the like, causing the synchronization process to fail. Additionally, simplification and efficiency are further realized by creating a synchronization process that allows the network dataset to be independent of the wireless device datasets, i.e., the network server does not require a full change history nor is the network server required to know the wireless device dataset version. | 03-19-2009 |
| 20110107107 | Multisigning - A Protocol For Robust Multiple Party Digital Signatures - Embodiments describe a system and/or method for multiple party digital signatures. According to a first aspect a method comprises establishing a first validity range for a first key, establishing a first validity range for at least a second key, and determining if the validity range of the first key overlaps the first validity range of the at least a second key. A certificate is signed with the first validity range of the first key and the first validity range of the at least a second key if the validity ranges overlap. According to another embodiment, signage of the certificate is refused if the first validity range of the first key does not overlap with the first validity range of the at least a second key. | 05-05-2011 |
Matthew W. Hohlfeld, San Diego, CA US
| Patent application number | Description | Published |
|---|---|---|
| 20100269156 | APPARATUS AND METHODS FOR PROVIDING AUTHORIZED DEVICE ACCESS - Methods, apparatus, and systems are described for providing an accessor device an access credential to interact with a device resource on an accessee device. An authorization entity having a trust relationship with the accessee device, or a linked subordinate authorization entity, generates the access credential. The access credential includes a modification detection indicator, at least one access privilege, and an accessor public key. The at least one access privilege corresponds to at least one device resource on the accessee device. The authorization entity forwards the access credential to the accessor device, which presents the access credential to the accessee device for authentication. Once authenticated, the accessee device grants access to one or more device resources, and controls requests to insure they are within the scope of the at least one access privilege. | 10-21-2010 |
Patrick Hohlfeld, Lausanne CH
| Patent application number | Description | Published |
|---|---|---|
| 20100183723 | Fetal Skin Cell Protein Compositions for the Treatment of Skin Conditions, Disorders or Diseases and Methods of Making and Using the Same - The present invention provides methods and compositions designed for treating a subject suffering from skin conditions, disorders or diseases. The compositions include fetal skin cell proteins obtained from fetal skin cells after induced cell lysis. | 07-22-2010 |
Robert G. Hohlfeld, Attleboro, MA US
| Patent application number | Description | Published |
|---|---|---|
| 20090136052 | Active Noise Cancellation Using a Predictive Approach - A method for active noise cancellation in a volume generates a mathematical model of a noise process to be cancelled. Using the mathematical model, a noise signal in a next sample period is predicted from a measured noise signal. The predicted signal is inverted and applied to the volume. Destructive interference of the noise signal and the inverted signal cancels the noise in the volume. | 05-28-2009 |