Abstract: A pulse oximetry device is provided that fixates generally around a user's wrist. The device may include one or more mechanical features that fix the device at, for example, a distal end of a wearer's ulna bone. The device may include one or more projections formed from a suitable material (e.g., elastomer such as silicon) that cause the device to fit snugly against the wearer's wrist and remain in place even when the wearer is moving, thus reducing motion artifacts in signals detected by the device. The device may include one or more mechanical features or fins that reduce ambient or stray light in the measurement area. The device may include one or more detectors, and one or more light sources, each having a different axis resulting from the manner in which each is angled toward a virtual center point of the distal end of a wearer's ulna bone.

Abstract: A pulse oximetry device is provided that fixates generally around a user's wrist. The device may include one or more mechanical features that fix the device at, for example, a distal end of a wearer's ulna bone. The device may include one or more projections formed from a suitable material (e.g., elastomer such as silicon) that cause the device to fit snugly against the wearer's wrist and remain in place even when the wearer is moving, thus reducing motion artifacts in signals detected by the device. The device may include one or more mechanical features or fins that reduce ambient or stray light in the measurement area. The device may include one or more detectors, and one or more light sources, each having a different axis resulting from the manner in which each is angled toward a virtual center point of the distal end of a wearer's ulna bone.

Abstract: A friend identification that may include: a first array of antennas, wherein main antenna lobes of different antennas of the first array partially overlap to define a first array lobe; wherein a beamwidth of the first array lobe is smaller than a beamwidth of each main antenna lobe of the different antennas of the first array; a transmission circuit arranged to provide to the first array of antennas a radio frequency (RF) interrogation signal; a reception circuit arranged to receive an RF response signal from an entity to be classified as a friend and to provide an electrical representation of the RF response signal; and a processor, arranged to process the electrical representation of the response signal and to determine, based on the electrical representation of the RF response signal, whether the entity is a friend.

Abstract: A device and method for local content insertion. The method includes: receiving multiple programs over a satellite link (220); determining whether to perform a local content insertion such as to insert a local content entity to a selected program being outputted by an end user device (240); inserting the local content entity in response to the determination (250); and providing the selected program that comprises the inserted local content entity to the end user device.

Abstract: A method includes: defining a first range determination window within a first frame in response to expected propagation delays associated with a transmission of signals over a satellite link from a devices located within a first area, and defining a second range determination window within a second frame in response to propagation delays associated with a transmission of signals over the satellite link from devices located within a second area that differs from the first area; and transmitting, towards devices within the first and second area, a request to transmit range information at a certain time.

Abstract: A system includes a satellite antenna adapted to receive right hand circularly polarized radiation and left hand circularly polarized radiation over a satellite link, and a terrestrial multiple sector antenna adapted to receive terrestrial communication; wherein the satellite antenna is oriented in relation to an imaginary vertical axis that is substantially parallel to multiple elements of the terrestrial multiple sector antenna. A method includes determining an operational mode of a system that comprises a satellite antenna adapted to receive right hand circularly polarized radiation and left hand circularly polarized radiation over a satellite link, and a terrestrial multiple sector antenna adapted to receive terrestrial communication; and selecting, in response to the operational mode, which radiation to output out of the radiation received by at least one receiving element out of the satellite antenna and an antenna element of the terrestrial multiple sector antenna.

Abstract: A method includes: defining groups of devices within an area covered by a satellite beam to multiple groups, in response to a propagation delay associated with transmissions between a base station and different devices; and defining a transmission frame that includes an uplink frame that is followed by a downlink frame; the downlink frame is allocated for transmission towards at least one device that belongs to a first group of devices while the uplink frame is allocated for transmission towards at least one device that belongs to a second group of devices.

Abstract: Infrastructure for interactive broadcasting is provided using a wide area network for bi-directional transmission between a plurality of user nodes and a central source node, at least some of the user nodes comprising rooftop video broadcast receiving installations modified with a terrestrial bi-directional antenna and network transmission support electronics.

Abstract: A TV broadcasting system comprises: an outward broadcast link to reach each of a plurality of user receiver installations via satellite or via a terrestrial channel, and a return link from each of said plurality of users, said return channel being a terrestrial channel via a wide area network, typically a WAN, of which WAN said user receiver installations form a node. The WAN may also support an uplink. A satellite or terrestrial receiver installation is modified with an extra terrestrial antenna for the WAN and a splitter combiner allows the already installed cable link to the TV receiver to be retained. A residential gateway allows a household LAN and communication enabled devices to be supported via the TV/WAN infrastructure.

Abstract: a TV receiver installation for supporting a return channel comprises: a satellite or terrestrial TV receiver for receiving a broadcast multi-channel feed, and a terrestrial antenna, associated with the TV receiver, for handling a return link over a terrestrial network.

Abstract: A head end installation for multi-channel video feed broadcasting to a plurality of user TV receiver installations, comprises: a transmitter for transmitting said multi-channel video feed to said user installations, and a router for receiving a return link from a core IP network and regional terrestrial networks, said user TV receiver installations forming nodes of said terrestrial networks, said return link allowing user interactions to be received by said installation and thereby supported.

Abstract: A user installation interfaces a television or like device with a video broadcast multi-channel feed signal. The installation comprises: a connector for connection to a video broadcast multi-channel feed receiver installation, a splitter unit attached to said connector for splitting incoming signals from said connector into a video feed signal and a signal received from a terrestrial network, and for directing outgoing signals for said terrestrial network to said connector, said terrestrial network signal providing a return link to support user interaction from said interfaced device.