Abstract: An antenna for reception and transmission of signals within an enclosure. The antenna includes a first lead for connection to a printed circuit board and a second lead. A plurality of vertical members extend in parallel to one another and spaced a predetermined distance apart. Each vertical member has a first end and a second end. A plurality of horizontal members is provided. Each horizontal member extends alternately between first ends of a pair of adjacent vertical members and second ends of a next pair of adjacent vertical members forming a connection between said first lead and said second lead.

Abstract: An electronic device includes a cover for one or more heat generating components, with the cover providing at least a combined conductive, convective, and radiant cooling for the heat generating components while maintaining the device within a prescribed temperature range. Conductive cooling is realized by providing thermal coupling between each of two or more depression regions in the cover and one or more heat generating components. Appropriate placement of air inlets and outlets through the cover provides convective cooling of the heat generating components and the thermally coupled depression regions. Heat from the heat generating components thermally coupled to one depression region is effectively isolated from heat generated by other heat generating components thermally coupled to another adjacent depression region at least in part via the air outlets through an interior region between the two adjacent depression regions.

Abstract: A sensor, a wireless transceiver and a battery that energizes the transceiver are installed together in a cavity formed in a frame of a door. They are displaced together in the cavity in accordance with the deadbolt position in a direction of displacement of a door deadbolt. A spring that is installed in the cavity accommodates differences among travel distances and differences in lengths of different deadbolts and also differences in gaps between doors and door frames.

Abstract: An electronic device includes a cover for one or more heat generating components, with the cover providing at least a combined conductive, convective, and radiant cooling for the heat generating components while maintaining the device within a prescribed temperature range. Conductive cooling is realized by providing thermal coupling between each of two or more depression regions in the cover and one or more heat generating components. Appropriate placement of air inlets and outlets through the cover provides convective cooling of the heat generating components and the thermally coupled depression regions. Heat from the heat generating components thermally coupled to one depression region is effectively isolated from heat generated by other heat generating components thermally coupled to another adjacent depression region at least in part via the air outlets through an interior region between the two adjacent depression regions.

Abstract: An inlet to a disc drive's filter chamber is tapered to converge along most or all of its length so as to reduce drag and increase inflow volume and velocity. This accelerates the removal of particles from the disc drive's sealed chamber, reducing the likelihood of particle-induced data transfer errors or media damage.

Abstract: An inlet to a disc drive's filter chamber is tapered to converge along most or all of its length so as to reduce drag and increase inflow volume and velocity. This accelerates the removal of particles from the disc drive's sealed chamber, reducing the likelihood of particle-induced data transfer errors or media damage.

Abstract: Disclosed is a design methodology which facilitates increasing the system mode frequency of an actuator system. As a first step, the primary components of a given actuator system are analyzed to determine which component is most responsible for limiting the system mode frequency of the given system. That component is then stiffened, resulting in a new actuator system with a higher system mode frequency. A second analysis step may then be performed to determine whether the modified design is optimal. These steps may be repeated as parts of an iterative process resulting in an optimal actuator design.