Abstract: An application specific gateway device includes a device data direction processor connectable to a particular type of internet of things (IoT) device and a client data direction processor connectable to a client of the IoT device. A data direction engine is connected between the device data direction processor and the client data direction processor. A communication state of the data direction engine is controllable by the device data direction processor to determine an enabled direction of data flow between the device data direction processor and the client data direction processor. The device data direction processor is configured to identify data that is received from the IoT device or from the data direction engine and that corresponds to a predetermined allowed data and communicate the received data, and to prevent communication of the received data if the received data does not correspond to the predetermined allowed data.

Abstract: A unidirectional secured network adapter to receive an at least one communication from an at least one device of plurality of devices of the secure network over an unsecured communication protocol which include a privilege data. The unidirectional secured network adapter writes the privilege data in a memory, converts the privilege data from first parallel. data stream to serial data stream and passes the serial data stream through an isolation unit, converts the serial data stream of the privilege data to a second parallel data stream and writes the privilege data in a read only memory. The unidirectional secured network adapter applies an unsecured communication protocol to the privilege data and transmits the privilege data to at least one device of the unsecured network.

Abstract: A unidirectional secured network adapter to receive an at least one communication from an at least one device of plurality of devices of the secure network over an unsecured communication protocol which include a privilege data. The unidirectional secured network adapter writes the privilege data in a memory, converts the privilege data from first parallel data stream to serial data stream and passes the serial data stream through an isolation unit, converts the serial data stream of the privilege data to a second parallel data stream and writes the privilege data in a read only memory. The unidirectional secured network adapter applies an unsecured communication protocol to the privilege data and transmits the privilege data to at least one device of the unsecured network.

Abstract: A method for managing a sphere of wireless tags, the method comprises programming, by a wireless reader, a group of wireless tags to belong to the sphere of wireless tags; sending by the wireless reader sphere beacons aimed to the wireless tags of the sphere; detecting a loss of a wireless tag of the sphere if the wireless tag did not respond to a predetermined number of sphere beacons; and responding to the detecting of the loss of the wireless tag.

Abstract: A method for determining a location of a group of wireless tags, the method may include receiving first information indicative of distances between each wireless tag of the group and between at least three other wireless tags of the group; tracking a first movement of a certain tag of the group of wireless tag in relation to other wireless tags of the group to provide first movement information; receiving, after the performing of the first movement, second information indicative of distances between each wireless tag of the group and between at least three other wireless tags of the group; and determining locations of the wireless tags of the group in response to the first information, second information and the first movement information.

Abstract: A method, comprising: generating or receiving information about multiple distance measurements of distances between the wireless tag and the wireless reader at different points of time; wherein the wireless reader is positioned at different locations in relation to the wireless reader at the different points of time; generating or receiving information about a spatial relationship between the different locations or receiving information indicative of the spatial; and determining the location of the wireless tag in response to the multiple range measurements and the spatial relationship between the different locations.

Abstract: A method for detecting a presence of a tagged item within a tagged enclosure, the method comprising performing distance measurements between at least one wireless tag of the tagged enclosure and the tagged item to determine the spatial relationship between the tagged enclosure and the tagged item.

Abstract: A method for locating a user within an indoor space, the method comprises: receiving by a computer, distance information about distances between multiple wireless tags that are positioned within the indoor space; wherein the distance information is obtained by the multiple wireless tags during a first type of distance estimation process that comprises wirelessly transmitting messages between the multiple wireless tags; determining locations of the wireless tags in the indoor space in response to the distance information and to calibration information indicative of an actual or estimated location of at least one wireless tag in the indoor space; receiving, from a user device, user device location information related to a location of the user device in relation to a sub-set of the wireless tags; determining a location of the user device within the indoor space in response to the user device location information and to locations of the wireless tags of the sub-set of wireless tags in the indoor space.

Abstract: A method for managing a sphere of wireless tags, the method comprises programming, by a wireless reader, a group of wireless tags to belong to the sphere of wireless tags; sending by the wireless reader sphere beacons aimed to the wireless tags of the sphere; detecting a loss of a wireless tag of the sphere if the wireless tag did not respond to a predetermined number of sphere beacons; and responding to the detecting of the loss of the wireless tag.

Abstract: A method for determining a location of a group of wireless tags, the method may include receiving first information indicative of distances between each wireless tag of the group and between at least three other wireless tags of the group; tracking a first movement of a certain tag of the group of wireless tag in relation to other wireless tags of the group to provide first movement information; receiving, after the performing of the first movement, second information indicative of distances between each wireless tag of the group and between at least three other wireless tags of the group; and determining locations of the wireless tags of the group in response to the first information, second information and the first movement information.

Abstract: A method, comprising: receiving during a wideband reception period and by a wideband reception circuit of a first wireless transceiver a wideband ranging message; transmitting during a wideband transmission period and by a wideband transmission circuit of the first wireless transceiver a wideband ranging response message; receiving by a narrowband reception circuit of the first wireless transceiver received narrowband messages; and transmitting by a narrowband transmission circuit of the first wireless transceiver transmitted narrowband messages.

Abstract: An audio synthesizer is disclosed for generating an analog or digital audio output in response to coded control instructions representing musical events, such as a MIDI data stream. The synthesizer has a general purpose computer portion with a CPU programmed to receive the control instructions and generate audio samples and a special purpose hardware portion for receiving the control instructions and generating the audio samples. The synthesizer also has a controller for directing the control instructions either to the general purpose computer portion or to the hardware portion to generate the audio samples; and means to combine the audio samples generated by the general purpose computer portion and the hardware portion to form an audio output which accords with the control instructions.

Abstract: A MIDI playback system is described in which a sequencer is characterized by: logic for generating a sequence of events, the sequence comprising groups of events, each group comprising events to be executed within a first time interval, the groups being separated in the sequence by marker events for indicating the time intervals, the sequencer being arranged to send the sequence of events together to a synthesizer. A synthesizer is described comprising storage means to receive and store the sequences of events; logic for reading an event from the storage; and logic for determining if the event is a marker event, the synthesizer being arranged to wait, if the event is a marker event, a time equal to the first time interval before reading another event from storage. Using this arrangement, the sequencer is no longer required to schedule the MIDI commands precisely on time and therefore the timing services that a software implementation of such a sequencer might ask from a computer system are reduced.