Abstract: System, apparatus, article of manufacture, method and/or computer program embodiments are provided for delivering a secondary content item based on a user return event. An example method may include detecting a user return event; pre-fetching and pre-buffering a secondary content item during an idle period preceding the user return event; and initiating a transition effect based on the user return event, the transition effect includes partially displacing a home screen interface and displaying the secondary content item in a defined region of a screen.

Abstract: A computer-implemented method of creating a group key for a group of N parties using an intermediary, the method includes sharing a cryptographic key of a party with an adjacent party in an ordered ring, wherein each party has another cryptographic key of an adjacent party; generating a meeting key for the party based on combining the cryptographic key of the party with a shared cryptographic key from an adjacent party; sending the meeting key to the intermediary and receiving an intermediate key from the intermediary, wherein the intermediary computes the intermediate key by combining at least two meeting keys of corresponding parties; creating the group key by combining the cryptographic key of the party with the received intermediate key, wherein the created group key includes a combination of at least N?1 of the cryptographic keys of the parties; and using the group key with another party of the group.

Abstract: A computer-implemented method of establishing a key between a first and a second device in a network including a first and a second key node, the first and second key nodes with access to a same set of keys, the method including receiving, at the first device, data representative of first key establishment data from the first key node and the second device for calculating a Bilocation Key from a selected key from the set of keys; and receiving, at the second device, data representative of second key establishment data from the first device for requesting the Bilocation Key from the second key node, wherein the Bilocation Key is calculated based on the selected key from the set of keys; and wherein the first and second devices use corresponding Bilocation Keys to each generate a Final Key based on an agreed portion of the first and second key establishment data.

Abstract: A method of encryption key provisioning that includes providing, by a quantum computing safe method, a shared secret data to a device and to a security service; using the provided shared secret data to provide a root key; and using the root key for a sequence of stages, wherein each stage includes an operation which converts a start key into a different generated key, and the same stages are carried out in parallel at the device and at the security service; wherein the root key is used as the start key for a first stage, and a generated key produced by each stage, except for the final stage, is used as a start key for a next stage of the sequence; and wherein the generated keys produced by the last stage of the sequence at the device and at the security service are symmetric keys.

Abstract: Various embodiments provide an interface joint for interconnecting an electrosurgical generator, a fluid supply, and an electrosurgical instrument. The interface joint comprises a housing having: an electrical inlet for receiving radiofrequency (RF) electromagnetic (EM) energy and/or microwave frequency EM energy from the electrosurgical generator; a fluid inlet for receiving fluid from the fluid supply; and, an outlet. The interface joint also comprises a single cable assembly for connecting the outlet to an instrument tip of the electrosurgical instrument. The single cable assembly comprises: a flexible shaft having: a coaxial cable that is connected to the electrical inlet; and a fluid channel that is in fluid communication with the fluid inlet.

Abstract: In one aspect, the disclosure presents an electrosurgical instrument for performing haemostasis by radiating microwave energy from a distal tip, where conductive radiating electrodes are coated in an insulating non-stick material. In another aspect, the disclosure provides an electrosurgical instrument for performing haemostasis using radiofrequency or microwave electromagnetic energy, where a distal tip of the instrument comprises a conductive hollow needle for conveying fluid to or from a treatment site, wherein the hollow needle is electrically grounded.

Abstract: Various embodiments provide an electrosurgical system for treating biological tissue. The system comprises: an electrosurgical generator configured to supply pulsed microwave energy; and an electrosurgical instrument. The electrosurgical instrument comprises a flexible coaxial cable arranged to convey the pulsed microwave energy; and a radiating tip portion connected at a distal end of the coaxial cable and configured to receive the pulsed microwave energy. The radiating tip portion has a maximum outer diameter that is 1.0 mm or less, and wherein the maximum outer diameter of the radiating tip portion is smaller than an outer diameter of the coaxial cable. Also, the radiating tip portion comprises: a proximal coaxial transmission line for conveying the pulsed microwave energy; and a distal needle tip mounted at a distal end of the proximal coaxial transmission line, the distal needle tip being arranged to deliver the pulsed microwave energy into biological tissue.

Abstract: Various embodiments provide a handheld applicator for treating skin by means of microwave radiation. The applicator comprises an applicator housing, a microwave emitter configured to emit microwave radiation for treating tissue in a target area, and an actuator assembly configured to move the microwave emitter relative to the applicator housing whilst emitting microwave radiation for increasing uniformity of tissue treatment in the target area. Other embodiments relate to an applicator pad for a handheld applicator, a skin treatment kit, a waveguide section for directing microwave radiation toward skin, and a skin treatment apparatus for treating skin by means of microwave radiation.

Abstract: An energy conveying structure for invasive electrosurgery that provide for combined delivery of (i) RF or microwave electromagnetic energy for tissue treatment (e.g. ablation, coagulation or cutting), and (ii) optical radiation within a common structure that may form an instrument cable of a surgical scoping device. The structure resembles a hollow coaxial transmission line with an optical channel formed within it. The optical channel can lie within a passage that is formed within the inner conductive layer or within other layers of the coaxial transmission. The structure may be used to form an electrosurgical device capable of delivering RF/microwave EM energy, optical radiation and ultrasonic signals to a treatment site along an instrument cable of a surgical scoping device.

Abstract: A quantum key distribution (QKD) protocol adapter and method providing a first interface presenting a QKD protocol to a network element and a second interface arranged to use a key management protocol to communicate with a hardware security module (HSM). The adapter being arranged to use group shared keys provided to the HSM by a QKD system, and the adapter being arranged to respond to key status requests and key requests from the network element in the QKD protocol by interacting with the HSM using the key management protocol, and being arranged to provide the requested key status information or keys to the network element in the QKD protocol.

Abstract: An electrosurgical apparatus and method for performing thermal treatment in the gastrointestinal tract, e.g. to ablate duodenal mucosal tissue. The apparatus comprises an instrument having a flexible cable and an applicator suitable for use with a gastroscope, which can be deployed within a patient to delivery energy in a targeted or otherwise controllable manner. The applicator can deliver microwave energy by radiation. The direct and depth-limited nature of microwave energy can be make it more effective than treatments that rely on thermal conduction. The applicator may include a radially extendable portion arranged to move an microwave energy delivery structure into contact with duodenal mucosal tissue at the treatment region. The applicator may comprise any of a balloon, bipolar radiator, movable paddle, and rotatable roller element.

Abstract: A method of encryption key provisioning that includes providing, by a quantum computing safe method, a shared secret data to a device and to a security service; using the provided shared secret data to provide a root key; and using the root key for a sequence of stages, wherein each stage includes an operation which converts a start key into a different generated key, and the same stages are carried out in parallel at the device and at the security service; wherein the root key is used as the start key for a first stage, and a generated key produced by each stage, except for the final stage, is used as a start key for a next stage of the sequence; and wherein the generated keys produced by the last stage of the sequence at the device and at the security service are symmetric keys.

Abstract: A dual reflector earth station antenna (ESA) system for transmitting uplink in a first frequency band and receiving downlink in a second frequency band, the ESA system comprises a reflector; a reflector tracking assembly coupled to the reflector and configured to control the direction of the reflector; a feed horn coupled to the reflector and optimized for a near-constant phase center for both the first frequency band and the second frequency band; a subreflector tracking assembly including a subreflector, configured for tracking in the X, Y and Z-axes and supported proximate a focal point of the reflector; and a control system in communication with the subreflector tracking assembly and comprising at least one processor.

Abstract: A computer-implemented method of establishing a key between a first and a second device in a network including a first and a second key node, the first and second key nodes with access to a same set of keys, the method including receiving, at the first device, data representative of first key establishment data from the first key node and the second device for calculating a Bilocation Key from a selected key from the set of keys; and receiving, at the second device, data representative of second key establishment data from the first device for requesting the Bilocation Key from the second key node, wherein the Bilocation Key is calculated based on the selected key from the set of keys; and wherein the first and second devices use corresponding Bilocation Keys to each generate a Final Key based on an agreed portion of the first and second key establishment data.

Abstract: A computer-implemented method of creating a group key for a group of N parties using an intermediary, the method includes sharing a cryptographic key of a party with an adjacent party in an ordered ring, wherein each party has another cryptographic key of an adjacent party; generating a meeting key for the party based on combining the cryptographic key of the party with a shared cryptographic key from an adjacent party; sending the meeting key to the intermediary and receiving an intermediate key from the intermediary, wherein the intermediary computes the intermediate key by combining at least two meeting keys of corresponding parties; creating the group key by combining the cryptographic key of the party with the received intermediate key, wherein the created group key includes a combination of at least N?1 of the cryptographic keys of the parties; and using the group key with another party of the group.

Abstract: A dual reflector earth station antenna (ESA) system for transmitting uplink in a first frequency band and receiving downlink in a second frequency band, the ESA system comprises a reflector; a reflector tracking assembly coupled to the reflector and configured to control the direction of the reflector; a feed horn coupled to the reflector and optimized for a near-constant phase center for both the first frequency band and the second frequency band; a subreflector tracking assembly including a subreflector, configured for tracking in the X, Y and Z-axes and supported proximate a focal point of the reflector; and a control system in communication with the subreflector tracking assembly and comprising at least one processor.

Abstract: Electrical instrument for applying radiofrequency and/or microwave frequency energy to tissue, comprising: a distal part comprising an instrument tip for applying radiofrequency and/or microwave frequency energy to tissue, the instrument tip comprising first and second conductive elements; a coaxial feed cable comprising an inner conductor, a tubular outer conductor coaxial with the inner conductor, and dielectric material separating the inner and outer conductors, the coaxial feed cable being for conveying radiofrequency and/or microwave frequency energy to the distal part; wherein: the inner conductor is electrically connected to the first conductive element and the outer conductor is electrically connected to the second conductive element through a rotatable connection between the distal part and the coaxial feed cable that allows rotation of the distal part relative to the coaxial feed cable; and the instrument comprises an actuator for rotating the distal part in a first rotational direction relative to

Abstract: Electrical instrument for applying radiofrequency and/or microwave frequency energy to tissue, comprising: a distal part comprising an instrument tip for applying radiofrequency and/or microwave frequency energy to tissue, the instrument tip comprising first and second conductive elements; a coaxial feed cable comprising an inner conductor, a tubular outer conductor coaxial with the inner conductor, and dielectric material separating the inner and outer conductors, the coaxial feed cable being for conveying radiofrequency and/or microwave frequency energy to the distal part; wherein: the inner conductor is electrically connected to the first conductive element and the outer conductor is electrically connected to the second conductive element through a rotatable connection between the distal part and the coaxial feed cable that allows rotation of the distal part relative to the coaxial feed cable; and the instrument comprises an actuator for rotating the distal part in a first rotational direction relative to

Abstract: An electrosurgical apparatus and method for performing thermal treatment in the gastrointestinal tract, e.g. to ablate duodenal mucosal tissue. The apparatus comprises an instrument having a flexible cable and an applicator suitable for use with a gastroscope, which can be deployed within a patient to delivery energy in a targeted or otherwise controllable manner. The applicator can deliver microwave energy by radiation. The direct and depth-limited nature of microwave energy can be make it more effective than treatments that rely on thermal conduction. The applicator may include a radially extendable portion arranged to move an microwave energy delivery structure into contact with duodenal mucosal tissue at the treatment region. The applicator may comprise any of a balloon, bipolar radiator, movable paddle, and rotatable roller element.

Abstract: An electrosurgical apparatus and method for performing thermal treatment in the gastrointestinal tract, e.g. to ablate duodenal mucosal tissue. The apparatus comprises an instrument having a flexible cable and an applicator suitable for use with a gastroscope, which can be deployed within a patient to delivery energy in a targeted or otherwise controllable manner. The applicator can deliver microwave energy by radiation. The direct and depth-limited nature of microwave energy can be make it more effective than treatments that rely on thermal conduction. The applicator may include a radially extendable portion arranged to move an microwave energy delivery structure into contact with duodenal mucosal tissue at the treatment region. The applicator may comprise any of a balloon, bipolar radiator, movable paddle, and rotatable roller element.