Abstract: Systems, methods, software and apparatus enable end-to-end encryption of group communications by implementing a pairwise encryption process between a pair of end user devices that are members of a communication group. One end user device in the pairwise encryption process shares a group key with the paired end user device by encrypting the group key using a message key established using the pairwise encryption process. The group key is shared among group members using the pairwise process. When a transmitting member of the group communicates with members, the transmitting member generates a stream key, encrypts stream data using the stream key, encrypts the stream key with the group key, then transmits the encrypted stream key and encrypted stream data to group members. The group key can be updated through the pairwise encryption process. A new stream key can be generated for each transmission of streaming data such as voice communications.

Abstract: Systems, methods, software and apparatus enable providing supplemental audio content to members of a communication group via a group communication service that manages the multiple member user nodes' transmission and receipt of communications between and among the member user nodes. A request for audio content (e.g., from the communication group or a member user node) causes the group communication service to launch a bot node member to locate and deliver the requested audio content. The audio content can be merged with user node communications (e.g., as transmission packets or as streaming audio content). In some implementations each user node includes a wearable push-to-talk end user device linked to a communication device executing a communication application connected to the group communication service.

Abstract: Secure data transfers between communication nodes is performed using a group encryption key supplied by a remote management system. A first node transmits a request for secure communications with a second node to the remote management system using a control channel. The remote management system generates and encrypts a group encryption key usable by the first and second nodes and forwards the encrypted group encryption key to the first and second nodes using one or more control channels. The first and second communication nodes decrypt the group encryption key and use it to encrypt data transmitted between the nodes using a data transport network. In some implementations the securely communicating nodes may use encryption keys and/or techniques that prevent the remote management system from eavesdropping on the nodes' communications.

Abstract: One-touch transmission and one-touch silencing of a wearable group communication device utilize an end user device body and face that can be moved relative to one another in one or more simple, single-motion actions. One-touch audio transmission is enabled after an end user device is activated to enable communications. Depressing the end user device face relative to the end user device body enables audio transmission. While the face is in its depressed position audio can be transmitted. To cease audio transmission the face is released. One-touch audio silencing of an activated end user device can be performed by rotating the face relative to the body to silence audio broadcast.

Abstract: Systems, methods, software and apparatus that enable dynamic audio transducer control include obtaining attribute information relating to multiple communication nodes that are communication node group members. A group management system or other computing system receives attribute information from two or more of the communication nodes and determines settings for one or more audio transducers (e.g., speakers and microphones) in the group's communication nodes based on the attribute information. An audio transducer command is transmitted to or imposed on one or more of the nodes. Attribute information can include node attributes and/or changes to attributes. Audio transducer commands transmitted or otherwise imposed on nodes can include muting and unmuting commands, as well as setting volume levels and other audio settings associated with a node's operation.

Abstract: Systems, methods, apparatus and software enable intelligent agent features for user nodes that are members of a communication group. Instructions instantiate an intelligent agent node as a member of the communication group. Each intelligent agent node can be instantiated by a communication group management system, an intelligent agent system and/or by one or more of the communication group members, for example by executing software on one or more computing systems or devices. A variety of services and other assistance can be provided by intelligent agent member nodes, including recording communications, auditing communications, providing audio transcription, annotating media, and paging communication devices, including communication nodes that are not members of the communication group. Communications between personal communication nodes and any intelligent agents can be secure.

Abstract: Systems, methods, software and apparatus enable linking of a wearable end user communication device (EUD) to an intermediate communication device (ICD) utilizing optical symbol sequence matching. Optical symbol reference data corresponding to an optical symbol sequence displayed on the EUD is obtained from the EUD by the ICD. Optical symbol input data is also acquired by the ICD (e.g., via user inputs, EUD device proximity data, image acquisition). The devices are linked if the optical symbol reference data and optical symbol input data match. The optical symbol reference data can be displayed, allowing user confirmation of a match with the optical symbol sequence displayed on the EUD. An ICD user interface touchscreen can present users with selectable color inputs to replicate the optical symbol sequence displayed on the EUD, for example using an LED array. Communications between the devices before and after linking can utilize Bluetooth low energy.

Abstract: One-touch transmission and one-touch silencing of a wearable group communication device utilize an end user device body and face that can be moved relative to one another in one or more simple, single-motion actions. One-touch audio transmission is enabled after an end user device is activated to enable communications. Depressing the end user device face relative to the end user device body enables audio transmission. While the face is in its depressed position audio can be transmitted. To cease audio transmission the face is released. One-touch audio silencing of an activated end user device can be performed by rotating the face relative to the body to silence audio broadcast.

Abstract: Systems, methods, software and apparatus enable low energy communication of audio data between an end user device and an associated intermediate communication device. Audio data is transmitted between the end user source device and associated intermediate communication device by cyclical updating and low energy transmission of data values as audio data packet fragments representing the audio data, which are assembled into audio data packets by the associated intermediate communication device. Packaged audio data is transmitted from one intermediate communication device to another intermediate communication device that is associated with an end user sink device. The end user sink device's associated intermediate communication device unpacks and transmits audio data packet fragments to the end user sink device by cyclical updating of and low energy transmission of data values as audio data packet fragments representing the audio data that are converted into acoustic signals.

Abstract: Systems, methods, software and apparatus enable linking of a wearable end user communication device (EUD) to an intermediate communication device (ICD) utilizing optical symbol sequence matching. Optical symbol reference data corresponding to an optical symbol sequence displayed on the EUD is obtained from the EUD by the ICD. Optical symbol input data is also acquired by the ICD (e.g., via user inputs, EUD device proximity data, image acquisition). The devices are linked if the optical symbol reference data and optical symbol input data match. The optical symbol reference data can be displayed, allowing user confirmation of a match with the optical symbol sequence displayed on the EUD. An ICD user interface touchscreen can present users with selectable color inputs to replicate the optical symbol sequence displayed on the EUD, for example using an LED array. Communications between the devices before and after linking can utilize Bluetooth low energy.

Abstract: Systems, methods, software and apparatus that enable dynamic audio transducer control include obtaining attribute information relating to multiple communication nodes that are communication node group members. A group management system or other computing system receives attribute information from two or more of the communication nodes and determines settings for one or more audio transducers (e.g., speakers and microphones) in the group's communication nodes based on the attribute information. An audio transducer command is transmitted to or imposed on one or more of the nodes. Attribute information can include node attributes and/or changes to attributes. Audio transducer commands transmitted or otherwise imposed on nodes can include muting and unmuting commands, as well as setting volume levels and other audio settings associated with a node's operation.

Abstract: Systems, methods, software and apparatus enable device to device grouping of personal communication nodes include managing a communication node group having communication node members. Attribute information from the communication nodes is provided to a management system that defines communication group membership based on the received attribute information. The management system transmits group membership status notifications to the communication nodes. Membership status controls a node's participation in group communications. Attribute information can include changes (such as dynamic changes) in one or more communication node attributes, such as location, proximity to other communication nodes, speed, etc.