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| Number | Title | Issue Date |
| 8185143 | Selectively buffering voice data at a server during a voice communication session Systems and methods for selectively replaying voice data. Voice data received in a communication session is both buffered by a server such that the buffered data can be played by a recipient device. When input is received from a recipient, the voice data currently b... | 05/22/2012 |
| 8180386 | Promoting push-to-talk communication A system is provided for promoting push-to-talk communication. An exchange component identifies a voice call between a first mobile device and a second mobile device. The exchange component determines whether the first mobile device selects to share a first push-to-... | 05/15/2012 |
| 8175629 | Connection-responsive push-to-talk Apparatus and method to monitor the coupling of one or two audio devices and to augment the function of a PTT switch to causes the PTT function of one audio device to be engaged regardless of which of the two operated positions into which the switch is moved in resp... | 05/08/2012 |
| 8175628 | Method and apparatus for reducing push-to-talk (PTT) latency in a WCDMA network A method and apparatus for reducing latency when setting up a Push-to-Talk (PTT) session from a User Equipment (UE) in a WCDMA radio communication network. When a user opens a PTT application or accesses the contacts page, the UE obtains a radio bearer from the netw... | 05/08/2012 |
| 8170594 | Method and computer-readable medium for precedence group calling A method and computer-readable medium for precedence group calling in a dispatch station is provided. The method includes: receiving a precedence order for each of a plurality of group call originators, based upon a group call identifier of each of the plurality of ... | 05/01/2012 |
| 8170596 | Secondary data transmission in a group communication transmission data stream A system, method, and wireless communication device that allow the transmission of secondary data in a group-communication data stream between wireless communication devices across a wireless communication network. The wireless communication device selectively trans... | 05/01/2012 |
| 8170595 | Hands-free mode for a half-duplex communications system A half-duplex communication system is embodied in a push-to-talk cellular system such as a GPRS system. The system includes two or more terminals (1 A, 1 B, 1 C) one or more of which can operate in a hands-free mode. When in hands-free mode, a t... | 05/01/2012 |
| 8160627 | System for establishing and managing multimedia PoC session for performing multimedia call service, method thereof and user equipment therefor Provided are a system for establishing and managing a Push To Talk (PTT) over Cellular (PoC) session between PoC clients supporting various media types, a method thereof, and a User Equipment (UE) therefor. When a PoC client performing an Open Mobile Alliance (OMA) ... | 04/17/2012 |
| 8150438 | Method for initiating a communication while participating in another communication Within a two way radio frequency communication system, a repeater transmits an identity of a rest channel when transmitting during an active communication call on a channel other than the rest channel. A subscriber unit communicating within the active communication,... | 04/03/2012 |
| 8150437 | Architecture to facilitate the monetization of disparate, inter-worked pushed to talk technologies An inter-working network includes a plurality of interfaces for facilitating communications with a plurality of dispatch networks, a signaling controller, a media gateway and a system for facilitating the monetization of inter-carrier dispatch communications. The si... | 04/03/2012 |
| 8145249 | Method and system for providing a proxy media service A method for providing a push-to-talk proxy media service includes receiving a plurality of monitored push-to-talk communication streams over a high bandwidth connection and mixing the plurality of monitored push-to-talk communication streams into a mixed communicat... | 03/27/2012 |
| 8140100 | Method, system and apparatus for implementing push to talk over cellular session storing and broadcasting A system for storing and broadcasting PoC sessions includes: a message storing module, adapted to receive a media stream in a session, into the media stream into a pattern storable by the message storing module, and store the media stream to the message storing modu... | 03/20/2012 |
| 8131313 | Method and terminal devices A method and terminal device are provided which effect the steps of receiving a message indicating that a user of another terminal device has pressed a talk button, the message including a geographical location of the other terminal device, or any information derive... | 03/06/2012 |
| 8126493 | Method and PoC gateway for implementing PoC service The present disclosure discloses a method for implementing a Push to talk over Cellular (PoC) service and a PoC gateway so as to shorten the process for a terminal to implement a PoC service. The method includes: receiving a request from a first terminal for setup o... | 02/28/2012 |
| 8126492 | Vehicle communications system The improved vehicle crew communication system provides an increase in the number of wireless headsets that can be used with one base station, an increase range from the vehicle for operation of said headsets, full duplex operation communication over digitally encry... | 02/28/2012 |
| 8116798 | Method to indicate status of channels assigned to a talkgroup in a multi-site conventional communication system A method for indicating the status of communication channels assigned to a talkgroup includes: determining the channels in various sites in a conventional communication system that service a talkgroup for media transmissions between subscribers of the talkgroup; rec... | 02/14/2012 |
| 8112106 | Method and apparatus for obtaining group information by an invited user during a session The present invention relates to a method for obtaining group information by an invited user in a Push-to-Talk over Cellular (PoC) session. The method comprises: sending, by a PoC client where a user initiating the session is located, a session request message carry... | 02/07/2012 |
| 8103298 | Multiple PTT functionality A communication device and method are presented. The device is in a network of devices of different groups. The device contains a push-to-talk (PTT) button, a channel selector, and a keyboard containing hard or soft keys. The channel selector selects an initial freq... | 01/24/2012 |
| 8103299 | Uni-directional traffic channel assignment for a receive-only group call in a mobile communication system Aspects of mobile communication for establishing a receive-only group communication, such as a Push-to-Talk (PTT) call or multicast call with a plurality of wireless communication devices that are in a receive-only mode are disclosed. When a group call between wirel... | 01/24/2012 |
| 8099120 | Method and device for enabling selective privacy in a push to talk (PTT) wireless group communication session A method and device for enabling selective privacy in a push to talk (PTT) wireless group communication session provides improved control over sharing of user identity information. The method includes processing at a PTT server a request for selective privacy. The P... | 01/17/2012 |
| 8099121 | System and method for granting transmit capability in a push to communicate system One illustrative technique is performed in a requesting terminal of a plurality of terminals of a communication group for a communication session delivered via a network. Each terminal has communication capabilities within the communication group, such that a curren... | 01/17/2012 |
| 8095163 | System and method for push-to-talk communication in an orthogonal frequency division multiplexed communication system A system to permit push-to-talk communications in an orthogonal frequency division multiplexed (OFDM) communication network. Individual wireless communication devices that are part of a Group Call are assigned the same set or sets of OFDM tones for a downlink timesl... | 01/10/2012 |
| 8090396 | Push-to-talk features in wireless communications devices and methods A wireless communications terminal that communicates in a communications infrastructure and methods therefor including opening a push-to-talk (PTT) contact list application (220) on the terminal when the terminal is in a dormant state, for example, by depress... | 01/03/2012 |
| 8090397 | Group communication method and communication terminal A group communication method in which a communication terminal not participating in the group communication can newly participate in the group communication even while the group communication is being carried out is realized. The group communication method has a per... | 01/03/2012 |
| 8078209 | Method and device for controlling access to a channel in a conventional multi-site communication system A repeater receives and repeats, on a multi-site channel, a sequence of control and media transmissions included in a session, wherein the session has a plurality of participants. While repeating these transmissions, the repeater further detects, from at least one o... | 12/13/2011 |
| 8073478 | Multi-party digital intercommunication systems and associated methods of operation This disclosure discloses methods and systems for subscribers in a multi-party conversation to obtain the right to speak efficiently and fairly. ... | 12/06/2011 |
| 8068865 | System and method for transmitting tones in a push-to-talk (PTT) system Systems and methods for allowing transmission of tones by a push-to-talk (PTT) communication station are provided. The communication station can decouple the PTT button of the PTT communication station, allowing the transmission of the tones without actuating the PT... | 11/29/2011 |
| 8064943 | Method and apparatus for controlling user's participation into a session in the PoC service The present invention discloses a method and an apparatus for controlling user's participation into a session so that the system can control accession to a PoC session requested by anonymous users and restrict an expelled user from joining the session again. Under t... | 11/22/2011 |
| 8064942 | Method and apparatus for transmitting and receiving resource scheduling information and scheduling resources An MBMS service-based method for transmitting resource scheduling information is provided. The method includes: before transmitting MBMS information, determining information on a repetition period with which a local cell transmits the MBMS information; and determini... | 11/22/2011 |
| 8055290 | Method to reduce push-to-talk call setup time System and method for reducing call setup time of a dispatch communication. In one embodiment, a method includes receiving a message from an originating dispatch device intended for a target dispatch device. The message may be inspected by a base transceiver station... | 11/08/2011 |
| 8050699 | Method, terminal, and system for establishing PoC group session in PoC system A method, a terminal, and a system for establishing a Push to Talk Over Cellular (PoC) group session in a PoC network based on session initiation information, such as information regarding presence of clients to be invited or session start-up time. According to the ... | 11/01/2011 |
| 8041376 | Methods and apparatus for providing PTT data buffering support indications from mobile devices and PTT data buffering control by wireless networks In one illustrative example of the present application, a mobile communication device has one or more processors, a wireless transceiver adapted to provide communications through a wireless communication network, and a buffer memory for use in buffering a Push-To-Ta... | 10/18/2011 |
| 8036693 | Communication systems and methods The floor in a network-based instant connect communication session is managed such that a mobile device user can cause voice data to be transmitted to a remote party without the remote party giving consent to relinquishing the floor. After the network-based instant ... | 10/11/2011 |
| 8036692 | Brew platform enabling advanced voice services (AVS) including push-to-talk, push-to-conference and push-to-message on wireless handsets and networks A client application that provides advanced voice services (AVS), such as Push-to-Talk (P2T), Push-to-Conference (P2C), Upgrade to Conference (upgrade from P2T to P2C), Push-to-Message (P2M) and group SMS (Short Message Service), on wireless handsets and networks us... | 10/11/2011 |
| 8032169 | System and method for providing low overhead floor control in a distributed peer-to-peer communications network A system and method for providing low overhead floor control in a distributed control two-way radio communications network (200) including one or more subscriber stations (201,205, 213, 215, 217) and one or more peer stations (203, 207, 211) int... | 10/04/2011 |
| 8027696 | Method and apparatus for allocating channel resources in a wireless communication system Disclosed is a method for dynamically allocating channel resources in a wireless communication system. A request for a channel resource by a new talkgroup call is received. Whether the new talkgroup call is associated to an associated communication based upon an ope... | 09/27/2011 |
| 8023978 | Method for providing enhanced floor control for group calls between a dispatch communications network and a cellular telephone communications network A method for providing enhanced floor control (500) between a dispatch communications network and a cellular telephone communications network includes transmitting a transmit delay message (517) by a network control entity (505) to a communicati... | 09/20/2011 |
| 8023980 | Phone terminal, server, and talking system having phone terminals and the server The present invention aims at providing a phone terminal over which the user who is attending the PoC talking can talk at a desired timing, a server, and a talking system having the phone terminals and the server. A talking system of the present invention is constru... | 09/20/2011 |
| 8023979 | Method and system for splitting terminals in push-to-talk over cellular network A method establishes a PoC multimedia session for making a PoC multimedia call according to a support attribute of a PoC terminal and sets media for each session. In the method, a message for setting a session management server to split arbitrary PoC user terminals ... | 09/20/2011 |
| 8023983 | Methods and apparatus for the immediate acceptance and queuing of voice data for PTT communications In one illustrative example, methods and apparatus for use in buffering PTT voice communications are described. A mobile station sends a PTT voice communication request in a wireless communication network. Prior to receiving a floor grant in response to the PTT voic... | 09/20/2011 |
