Abstract: A device, system and method for communicating between devices using two protocols is provided. A request is received from a first device to communicate with a second device. A dedicated client operates according to a first protocol. A call server is operated according to a second protocol. An identifier is provided to the second device for requesting a web application for conducting a call via the call server, the identifier associated with the first and second device. A request, including the identifier is received and the web application is provided to the second device. A first call is set up between the dedicated client and a respective dedicated client. A second call is set up between the call server and the web application at the second device. The first call and the second call are connected to conduct an end-to-end call between the first and second device.

Abstract: A device, system and method for communicating between devices using two protocols is provided. A request is received from a first device to communicate with a second device. A dedicated client operates according to a first protocol. A call server is operated according to a second protocol. An identifier is provided to the second device for requesting a web application for conducting a call via the call server, the identifier associated with the first and second device. A request, including the identifier is received and the web application is provided to the second device. A first call is set up between the dedicated client and a respective dedicated client. A second call is set up between the call server and the web application at the second device. The first call and the second call are connected to conduct an end-to-end call between the first and second device.

Abstract: A method and apparatus are provided for controlling network access in a wireless communication system. An infrastructure device, which may reside in, or be communicatively coupled to, any of an access network, a core network, and a service network, implements a device class prioritization control function (DCP-CF) that receives a geographical location of an incident, determines one or more of a cell and an access node corresponding to the geographical location, determines one or more access class barring parameters for the cell and/or access node, determines whether to enable access class barring at the cell and/or access node and, in response to determining to enable access class barring at the cell and/or access node, provides the one or more access class barring parameters to the cell and/or access node.

Abstract: Disclosed herein are methods and systems for allocating resources from component carriers to a public-safety mobile radio. An embodiment takes the form of a process that is carried out by carried out by a Long-Term Evolution (LTE) Evolved Node B (eNodeB). The eNodeB makes a first determination to allocate resources to a given mobile radio. The eNodeB makes a second determination that the given mobile radio is a public-safety mobile radio. In response to making the first and second determinations, the eNodeB selects, based on one or more public-safety-communication criteria, a component carrier from among a plurality of component carriers managed by the eNodeB. The eNodeB allocates resources on the selected eNodeB component carrier to the given mobile radio.

Abstract: A method and apparatus are provided for controlling network access in a wireless communication system. An infrastructure device, which may reside in, or be communicatively coupled to, any of an access network, a core network, and a service network, implements a device class prioritization control function (DCP-CF) that receives a geographical location of an incident, determines one or more of a cell and an access node corresponding to the geographical location, determines one or more access class barring parameters for the cell and/or access node, determines whether to enable access class barring at the cell and/or access node and, in response to determining to enable access class barring at the cell and/or access node, provides the one or more access class barring parameters to the cell and/or access node.

Abstract: Disclosed herein are methods and systems for allocating resources from component carriers to a public-safety mobile radio. An embodiment takes the form of a process that is carried out by carried out by a Long-Term Evolution (LTE) Evolved Node B (eNodeB). The eNodeB makes a first determination to allocate resources to a given mobile radio. The eNodeB makes a second determination that the given mobile radio is a public-safety mobile radio. In response to making the first and second determinations, the eNodeB selects, based on one or more public-safety-communication criteria, a component carrier from among a plurality of component carriers managed by the eNodeB. The eNodeB allocates resources on the selected eNodeB component carrier to the given mobile radio.

Abstract: Methods are disclosed for determining a link Op from among a plurality of host devices on a LAN, for exchanging control messages between a communication server and one or more sites having a link Op and a listening Op and for the link Op and/or listening Op to detect and recover from missing packets in a sequence of IP packets received from the server. The link Op and listening Op join a control multicast group address to receive control messages from the server. The link Op establishes a reliable message transfer session with the server. Upon the link Op detecting a missing packet, the link Op may request that the communication server resend the packet. Upon the listening Op detecting a missing packet, the listening Op determines whether the link Op will request retransmission of the missing packet.

Abstract: Methods are disclosed for determining a link Op from among a plurality of host devices on a LAN, for exchanging control messages between a communication server and one or more sites having a link Op and a listening Op and for the link Op and/or listening Op to detect and recover from missing packets in a sequence of IP packets received from the server. The link Op and listening Op join a control multicast group address to receive control messages from the server. The link Op establishes a reliable message transfer session with the server. Upon the link Op detecting a missing packet, the link Op may request that the communication server resend the packet. Upon the listening Op detecting a missing packet, the listening Op determines whether the link Op will request retransmission of the missing packet.

Abstract: A packet-based communication system and method of call control that allows variable numbers of calls of potentially multiple types (e.g., conventional and trunking calls) to proceed concurrently over shared links of an IP network without exceeding available bandwidth. Call counts are determined for one or more paths between endpoints, defining numbers of calls that are supportable by the one or more paths. The call counts may be apportioned between first and second types of call (e.g., between trunking and conventional calls). Upon receiving call requests that require use of one or more paths, the call requests are granted if they do not exceed the call counts associated with the one or more paths. Optionally, the call requests may be denied or busied if they exceed the call counts associated with the one or more paths. As another option, call requests of one type (e.g.

Abstract: A comparator comprising one or more first stage voters (115, 117, 119, 121) operably coupled to a second stage voter (123), and methods of voting with the comparator. The first stage voters receive and vote among a number of instances of a signal (A1-A16, B1-B16), yielding respective first stage voted signals (C1, C2), and the second stage voter operates to receive and vote among the first stage voted signals, yielding a second stage voted signal. In alternative embodiments, the first stage voters independently determine (220) vote conclusion times (TA, TB) that are generally non-coincident, independently determine (420) vote conclusion times (TAB, TAB′) that are substantially coincident, or one of the first stage voters may determine (320) a common vote conclusion time (TAB) which is communicated (325) to the other first stage voters. The respective vote conclusion times determines the time at which time the first stage voted signals are sent to the second stage voter.

Abstract: An apparatus has a plurality of ports (209); a router (203), operating in conjunction with at least one of the plurality of ports, arranged and constructed to receive at least one signal and provide an output signal; and a pacer (205), operating in conjunction with one or more of the plurality of ports, arranged and constructed to receive the output signal and provide the output signal to at least one of the one or more of the plurality of ports. The apparatus may also include a voter (201), operating in conjunction with at least one of the plurality of ports, arranged and constructed to provide a voted signal to the router.

Abstract: An apparatus (109) for and method of voting provides efficient use of communication resources (111, 112), while avoiding interference caused by other signal sources, particularly in a simulcast system. Although the same communication resource (111) is used for transmission on multiple base stations or repeaters (103, 105, 107, 113) at the same time in a simulcast system, the present invention provides way to achieve increased signal throughput without causing interference (213, 301) with desired signals (215, 211).

Abstract: In an improved diversity repeater (200), a plurality of frame sets (213) corresponding to a message are received by a time stamper (202) such that frames within each frame set are time stamped. An arrival time differentiator (204) determines arrival time differentials (217) for each frame set based on time stamps. An averager (206) averages the arrival time differentials together. The resulting averaged arrival time differentials (219) are used by a voting window determiner to determine a new voting window (221). The new voting window is used to perform voting on frame sets corresponding to a subsequent message.

Abstract: A method for use by a voter in a communication system includes the steps of receiving (201) a frame of information, wherein the received frame has a frame number. It is determined if a reference frame for the frame number exists (203). If a reference frame for the frame number does not exist, the received frame is set (205) as a current reference frame for the frame number and an output criterion is set (207) for the frame number. When the output criterion for the frame number is satisfied, the current reference frame is output (211) as the output frame for the frame number. If a reference frame for the frame number exists, the frame is voted (209) against the reference frame for the frame number, yielding the current reference frame.

Abstract: A communication system (200) employs a method and apparatus for performing diversity voting in the communication system. A comparator (206) receives a signal frame (207-209) of code words from each of multiple signal sources (202-204). A prioritized code word of each signal frame occupies a corresponding frame position and has a respective signal quality metric associated therewith. The comparator determines whether each signal quality metric accurately represents the signal quality of its respective prioritized code word. When the signal quality metrics do not accurately represent the signal qualities of their respective prioritized code words, the comparator determines a supplemental signal quality metric for each prioritized code word. The comparator then selects one prioritized code word from all the corresponding prioritized code words based on a comparison of the supplemental signal quality metrics for input into the corresponding frame position of a voted signal frame (330).

Abstract: A simulcast controller 201 receives a communication request at a current time. A preliminary launch time equivalent to the sum of the current time plus a predetermined offset value (401) is calculated along with a difference between the preliminary launch time and a transmission conclusion time (402). When the difference is not greater than a sum of a predetermined dekey interval (404) and a predetermined keyup interval (408), a supplemental offset value (406-407) is added to the preliminary launch time to produce the initial launch time. Alternatively, upon termination of a previous communication (600), a period of time equivalent to the sum of the predetermined dekey interval (602) and the predetermined keyup interval (603) is initiated. If the current time is earlier than an expiration time (604), the predetermined offset value (601) and the supplemental offset value (606-607) are added to the current time to produce the initial launch time.

Abstract: An objective with two lens elements has a first fully-reflective plane mir between the lens elements, and a second such mirror between the objective and a detector. The outermost lens element and the first mirror are carried in a housing rotatable with respect to another housing carrying the other lens elements and the second mirror. The other housing is rotatable about an axis between the second mirror and the detector. The system may thus do elevation scanning by rotating the first housing, and azimuth scanning by rotating the two housings about the mentioned axis. Image stabilization is accomplished by appropriately stabilizing one or both mirrors.

Abstract: A helmet capable of providing head protection and of carrying various accories. The helmet includes a form-fit inner liner combined with a transparent mask, and an outer shell. The outer shell has a mount by which a display device may be carried. The display device has a flanged ocular end which snaps into a groove formed in the mask. The display device is carried on the mounts by a swivel-mount quick-disconnector. The outer shell may also carry such things as a visor and a radio microphone. The inner liner may carry earphones and may be adapted to connect to a gas mask.