Abstract: Disclosed embodiments relate to performing an advertisement campaign filtering process while protecting the privacy of both an advertiser and a user of a personal computing device. Techniques include maintaining a plurality of sets of advertising competition rules, the plurality of sets of advertising competition rules being associated with a plurality of discrete advertising campaigns; for a set of advertising competition rules from the plurality of sets of advertising competition rules: identifying advertisement targeting criteria associated with the set of advertising competition rules, differentiating, from within the advertisement targeting criteria, between advertisement-sensitive targeting criteria and advertiser-insensitive criteria, and transforming the advertisement-sensitive sensitive targeting criteria; and transmitting, to the personal computing device, at least a portion of the transformed advertisement-sensitive targeting criteria.

Abstract: Disclosed embodiments relate to conducting a real-time selection of a targeted advertisement or campaign on a personal computing device. Techniques include receiving, on the personal computing device, a plurality of sets of advertising competition rules associated with a plurality of discrete advertising campaigns. Further techniques include identifying an opportunity to display a targeted advertisement to a user of the personal computing device, accessing sensitive data associated with the user stored locally on the personal computing device, the sensitive data not being made available outside of the personal computing device without authorization from the user, and conducting, based on the identified opportunity and using the accessed sensitive data, a real-time selection of at least one of the plurality of discrete advertising campaigns, the real-time selection is based on one or more of the plurality of sets of advertising competition rules.

Abstract: Disclosed embodiments relate to receiving a targeted advertisement on a personal computing device without revealing sensitive data of a user of the personal computing device. Techniques include maintaining sensitive data associated with the user; identifying, while the user is interacting with an application running on the personal computing device, an opportunity to display a targeted advertisement to the user of the personal computing device; receiving a prompt to request a targeted advertisement for display on the personal computing device, the targeted advertisement being part of a discrete advertising campaign selected based on the sensitive data associated with the user; and requesting, based on the prompt, the targeted advertisement for display on the personal computing device.

Abstract: Disclosed embodiments relate to performing an advertisement campaign filtering process while protecting the privacy of both an advertiser and a user of a personal computing device. Techniques include maintaining a plurality of sets of advertising competition rules, the plurality of sets of advertising competition rules being associated with a plurality of discrete advertising campaigns; for a set of advertising competition rules from the plurality of sets of advertising competition rules: identifying advertisement targeting criteria associated with the set of advertising competition rules, differentiating, from within the advertisement targeting criteria, between advertisement-sensitive targeting criteria and advertiser-insensitive criteria, and transforming the advertisement-sensitive sensitive targeting criteria; and transmitting, to the personal computing device, at least a portion of the transformed advertisement-sensitive targeting criteria.

Abstract: Disclosed embodiments relate to efficiently providing advertising competition rules to a personal computing device of a user. Techniques include maintaining a plurality of sets of advertising competition rules, the plurality of sets of advertising competition rules being associated with a plurality of discrete advertising campaigns; receiving non-personal advertisement targeting data from the personal computing device; filtering the plurality of sets of advertising competition rules using a filtering technique, based on the non-personal advertisement targeting data, to identify a subset of the plurality of sets of advertising competition rules; and transmitting the subset of the plurality of sets of advertising competition rules to the personal computing device.

Abstract: An electronic device is presented, the device comprises: a spin accumulating structure; a spin selective filter electrically connected at a first end thereof to a first surface of said spin accumulating layer structure; a charge carrier source attached to said spin selective filter at a second end of the spin selective filter; wherein the spin selective filter is configured to allow passage of the charge carriers having a predetermined spin orientation from the charge carrier source to the spin accumulating structure, thereby causing a variation of spin distribution of the charge carriers within the spin accumulating structure. The device comprises further at least first and second pairs of electrical contacts which are connected to the spin accumulating structure and define first and second electrical paths through said spin accumulating structure, said first and second electrical paths intersecting within said spin accumulating structure.