Patent application number | Description | Published |
20080219259 | SYSTEM AND METHOD FOR TRANSMITTING CALL INFORMATION IN A COMMUNICATION SYSTEM WITH LONG LINK DELAYS - A system and method for transmitting call information in a communication system having sites with long link delays. Upon a call being initiated within the communication system, a zone controller determines the participating sites that are to be involved in the call and assigns an IP multicast group address for the call. The zone controller also determines whether any of the participating sites have a long link delay. If any of the participating sites do have a long link delay, the zone controller also assigns an IP unicast address for each such site. The call information is then transmitted both on the IP multicast address as well as on each assigned IP unicast address to ensure that the call is received by each participating site without the loss of call information. | 09-11-2008 |
20090081997 | SYSTEM AND METHOD FOR MINIMIZING UNDESIRED AUDIO IN A COMMUNICATION SYSTEM UTILIZING DISTRIBUTED SIGNALING - A system and method for processing calls in a communication system utilizing distributed signaling. When a call signal having distributed identification data is received on a communication channel, the call information (such a voice, data, video, etc.) is initially passed through the system without verification until sufficient identification data (such as the color code) has been obtained to determine whether the source of the call is valid. Once sufficient identification data has been obtained, the source is verified. If the source is valid, the call information continues to be passed through the system. However, if source is invalid, the call information is blocked for the present call as well as for subsequent calls on the same communication channel, and passing of the call information through the system does not resume until a received call is subsequently assessed to be valid. | 03-26-2009 |
20090285243 | SYSTEM AND METHOD FOR RECEIVING CALL SIGNALS IN A COMMUNICATION SYSTEM - A system and method for dynamically altering detection criterion value at a receiving device based on the portion of a call signal being received. A receiving device is configured to extract a first call signal portion from the call signal, and compare the first call signal portion to a plurality of call information portions, wherein each call information portion has a detection criterion value. If the first call signal portion matches one of the call information portions, the receiving device adjusts the detection criterion value for at least one of the plurality of call information portions, extracts a second call signal portion from the call signal, and compares the second call signal portion to the plurality of information portions. | 11-19-2009 |
20100062798 | METHOD OF ASSIGNING PROVISIONAL IDENTIFICATION TO A SUBSCRIBER UNIT AND GROUP - The present disclosure provides an efficient and effective method for allocating provisional PUIDs and PGIDs to subscriber units and groups during a failure, such that when the communication system recovers, there is a decrease in or elimination of the number of dropped or missed communications. The present disclosure reserves a range of provisional PUIDs and PGIDs for resource controllers operating in a region of system failure to assign when subscriber units roam into the region of failure in the communication system. The present disclosure addresses creating PUID and PGID ranges for resource controllers to assign to roaming subscriber units in order to allow for assignment of PUIDs and PGIDs during periods of subsystem isolation and site trunking, i.e., when the particular site or subsystem cannot communicate with the rest of the communication system. The present disclosure also addresses recovering from these situations, re-registration, and reallocation of PUIDs and PGIDs. | 03-11-2010 |
20100151895 | METHOD FOR MANAGING COMPETING CALL REQUESTS - Granting multiple communication paths for a single talkgroup call for interrupting a transmission or allowing a dispatch operator to listen to multiple units transmitting simultaneously on the same talkgroup call is disclosed. Upon a first unit being keyed, the controller assigns a first communication channel to a call, whereby the first unit begins transmitting using an inbound link of the first communication channel. If a second unit participating in the call is keyed during the call, the controller assigns a second communication channel to the call, and the second unit begins transmitting on the inbound link of the second communication channel. The call information for both transmissions from the first and second units may be simultaneously routed to dispatch consoles monitoring the call. If the controller determines that the first unit should be interrupted, the transmission from the second unit is broadcast by the base sites involved in the call. | 06-17-2010 |
20110105168 | METHOD OF CONTROL SIGNALING IN A WIRELESS COMMUNICATION SYSTEM - A method for Fixed Network Equipment (FNE) to control the three of four and one of four slow associated control channel (SACCH) pattern on an Association of Public-Safety Communications Officials (APCO) Project 25 (P25) trunked voice channel is provided. Knowledge of this pattern by both the FNE and radio allows for unique information to be signaled in each type of SACCH. According to some embodiments, an operation enables controlling the floor (inbound) while there is an independent outbound (floor) (e.g. Console takeover). The provided operation also allows each radio to differentiate inbound floor control signaling from outbound caller identification (ID). Having the infrastructure control the inbound SACCH pattern and communicate this to all radios, makes the correct detection of the transmitted pattern from the radio more reliable. | 05-05-2011 |
20120172083 | METHODS FOR COORDINATING WIRELESS COVERAGE BETWEEN DIFFERENT WIRELESS NETWORKS FOR MEMBERS OF A COMMUNICATION GROUP - A method for coordinating wireless coverage between a first wireless network and a second wireless network for a communication device, wherein the communication device performs the method, which includes: detecting wireless coverage by the first wireless network; affiliating to a communication group to become a member of the communication group; receiving, from an infrastructure device coupled to the first wireless network, a set of channels on the second wireless network for the communication group, wherein the set of channels is determined based on the location of members of the communication group; detecting a loss of coverage in the first wireless network of at least one member of the communication group; and, responsive to detecting the loss of coverage, switching to a channel in the set of channels on the second wireless network for communications for the communication group. | 07-05-2012 |
20130122900 | ACCESS CONTROL FOR ROAMING RADIO DEVICES - Methods and systems are provided for supporting roaming wireless devices and roaming wireless groups with access controls. One exemplary method involves obtaining a set of permissions associated with a roaming device from its home radio system, obtaining a set of permissions for the roaming device from the visited radio system, merging the obtained sets of permissions, and responding to a request from the roaming device in accordance with the merged set of permissions for the roaming device within the visited radio system. Another exemplary method involves obtaining permissions associated with a roaming radio group from its home radio system, obtaining permissions for the roaming radio group from the visited radio system, merging the obtained permissions, and responding to a group service request for the roaming radio group in accordance with the merged set of permissions for the roaming radio group within the visited radio system. | 05-16-2013 |
20130157634 | METHOD AND APPARATUS FOR ALLOCATING FREQUENCIES AMONG MULTIPLE TALKGROUPS - A multi-carrier receiver radio monitors frequency channels associated with at least one talkgroup to which a multi-carrier receiver radio subscribes. The talkgroup is associated with a set of frequency channels that may carry group call activity. The radio monitors each frequency channel of the set of frequency channels associated with the talkgroup for group call activity. During monitoring, when a new call is detected on one frequency channel of the set of frequency channels associated with the talkgroup, the radio joins the new call. While joined to the new call, the radio continues to monitor the set of frequency channels associated with the talkgroup for additional transmissions to the talkgroup and to monitor a set of frequency channels associated with another talkgroup to which the multi-carrier receiver radio also subscribes for group call activity on the other talkgroup. | 06-20-2013 |
20130157708 | METHOD AND APPARATUS FOR SELECTING ONE OF A PLURALITY OF NETWORKS FOR AN APPLICATION SERVICE BASED UPON PERFORMANCE METRICS FOR THE APPLICATION SERVICE - A communication device performs a method for selecting a network for an application service based upon system performance. The method includes obtaining multiple sets of performance metrics. Each of the multiple sets of performance metrics comprises at least one performance metric for a same application service. The method further includes evaluating the multiple sets of performance metrics to select one of the corresponding networks to access the application service on the selected network. | 06-20-2013 |
20130288662 | Method and Apparatus for Providing Site and System-Wide Alert Tones - In a two-way radio frequency (RF) communications system having at least one fixed terminal, one or more channels, and a plurality of subscriber units, the method comprising, a device receives, from a first subscriber unit, an alert tone request identifying at least a type of alert tone and at least one destination. In response, the device causes one or more fixed terminals corresponding to one or more radio sites associated with the destination identified in the alert tone request to instruct their subscriber units to play back a locally stored or generated alert tone corresponding at each subscriber unit. Receiving subscriber units then play back the alert tone on a continuous, periodic, or semi-periodic basis, selectively mixing the alert tone with call audio if present. | 10-31-2013 |
20130337805 | ACCESS CONTROL FOR ROAMING RADIO DEVICES - Methods and systems are provided for supporting roaming wireless devices and roaming wireless groups with access controls. One exemplary method involves obtaining a set of permissions associated with a roaming device from its home radio system, obtaining a set of permissions for the roaming device from the visited radio system, merging the obtained sets of permissions, and responding to a request from the roaming device in accordance with the merged set of permissions for the roaming device within the visited radio system. Another exemplary method involves obtaining permissions associated with a roaming radio group from its home radio system, obtaining permissions for the roaming radio group from the visited radio system, merging the obtained permissions, and responding to a group service request for the roaming radio group in accordance with the merged set of permissions for the roaming radio group within the visited radio system. | 12-19-2013 |
20140057671 | METHOD AND APPARATUS FOR INFORMING A DISPATCHER OF CONVENTIONAL TRAFFIC IN A DIFFERENT AND CONFLICTING TALKGROUP - A method for providing an indicator to a dispatcher of traffic on a shared multi-talkgroup channel is provided. The method includes initiating and transmitting a first communication on a first talkgroup over the multi-talkgroup channel, receiving a notification at a first dispatch console indicating a presence of traffic on the multi-talkgroup channel that will conflict with a second talkgroup during the first communication, wherein the first dispatch console is subscribed to participate in the second talkgroup on the multi-talkgroup channel, and generating an indicator at the first dispatch console indicating to a dispatcher the presence of traffic on the multi-talkgroup channel that will conflict with the second talkgroup during the first communication. | 02-27-2014 |
20140086216 | METHOD AND APPARATUS FOR PROVIDING ACKNOWLEDGEMENT INFORMATION TO RADIO COMMUNICATION DEVICES IN A WIRELESS COMMUNICATION SYSTEM - A method and apparatus for providing acknowledgment information for radio communication devices in a wireless communication system. A base station receives a plurality of units of data each respectively transmitted by one of a plurality of radio communication devices on one of a plurality of predetermined communication slot positions of a first channel. The base station, in response to receiving the data messages, sends a control message on a communication slot position of a second channel. The control message includes acknowledgment information having a plurality of positional acknowledgment indicators. Each radio communication device receives the control message and uses acknowledgment position mapping information to identify one or more positions within the plurality of positional acknowledgment indicators that contains an acknowledgment to the respective units of data it transmitted on the corresponding predetermined communication slot positions of the first channel. | 03-27-2014 |
20140213232 | METHOD AND DEVICE FOR AUTOMATICALLY ACTIVATING AND DE-ACTIVATING ADJACENT RADIO SITES - A radio site controller is configured to dynamically activate adjacent radio sites by first identifying, based at least on a current location of a subscriber unit in a currently activated first radio site, a currently de-activated second radio site located adjacent to the first radio site, and subsequent activating the identified second radio site. The identified second radio site may be a single de-activated adjacent second radio site, all de-activated adjacent second radio sites, or a subset of de-activated adjacent second radio sites based on a subscriber unit travel direction determination. | 07-31-2014 |
20150079919 | METHOD AND APPARATUS FOR PRIORITY SUMMING OF GROUP AUDITORY DATA - A first group auditory data stream, from a transmitting subscriber device of a first group of subscriber devices or from a dispatch console and intended for the first group of subscriber devices, is received at a conference server. A second group auditory data stream from a transmitting subscriber device of a second group of subscriber devices is similarly received. The conference server determines a relative priority level of one of (i) the first group of subscriber devices relative to the second group of subscriber devices and (ii) the first group auditory data stream relative to the second group auditory data stream, and sets different relative signal gains of the first group auditory data stream and the second group auditory data stream as a function of the determined relative priority level. The two auditory data streams are then summed and forwarded towards the second group of subscriber devices. | 03-19-2015 |
20150079920 | METHOD AND APPARATUS FOR UNIDIRECTIONAL SUMMING OF GROUP AUDITORY DATA - A first group auditory data stream, from a transmitting subscriber device of a first group of subscriber devices or from a dispatch console and intended for the first group of subscriber devices, is received at a conference server. The conference server determines whether the first group auditory data stream generated for the first group of subscriber devices is of interest to a second group of subscriber devices, and if so, sums the first group auditory data stream with a second group auditory data stream intended for the second group of subscriber devices to form a summed group auditory data stream. The conference server then forwards the summed group auditory data stream towards the second group of subscriber devices and forwards the first group auditory data stream towards the first group of subscriber devices. | 03-19-2015 |
20150094109 | METHOD AND APPARATUS TO INCREASE SERVICE CAPACITY IN RADIO COMMUNICATION SYSTEMS USING IDLE WORKING CHANNELS AS FLEXIBLE CONTROL CHANNELS - A subscriber unit-based method and a subscriber unit include locally maintaining a status of each working channel of a plurality of working channels in a wireless communication system; responsive to an inbound request, selecting one of a plurality of idle working channels of the plurality of working channels and a dedicated control channel; and sending the inbound request on the selected channel. An infrastructure-based method is also provided. Variously, the methods and systems increase service capacity in radio communication systems using idle working channels as flexible control channels. An infrastructure-based method is also described. | 04-02-2015 |
20150110272 | METHODS, SYSTEMS, AND DEVICES TO REDUCE AUDIO TRUNCATION DURING TRANSCODING - Reduction of audio truncation when transcoding speech data from one coding format to another. Embodiments include receiving packets of a first communication session containing first encrypted speech data encoded according to a vocoder of a first type and encrypted using an encryption protocol, and containing a first encryption protocol identification information distributed among the received packets. Further embodiments include extracting the first encryption protocol identification information from the received packets and processing the received packets based on the first encryption identification information. Embodiments include transmitting one or more voice header packets containing a second encryption protocol identification information in a second communication session as well as transmitting packets in the second communication session containing second encrypted speech data encoded according to a vocoder of a second type. | 04-23-2015 |
20150181382 | GEO-FENCE BASED ALERTS - Geo-fence based alerts are provided in a wireless communications network. A first subscriber device (SD) in the wireless communications network determines its current location. The first SD detects a geo-fence trigger by determining, as a function of the determined current location and a stored geo-fence database, that it has either (i) crossed a geo-fence boundary into a first active geo-fence in the stored geo-fence database or (ii) is within the first active geo-fence and has not yet begun playing back an alert associated with the first active geo-fence. Responsively, the first SD identifies an alert associated with the first active geo-fence and begins playback of the alert associated with the first active geo-fence. | 06-25-2015 |
20150359013 | METHOD AND APPARATUS FOR MANAGING GROUP-BASED EMERGENCY NOTIFICATIONS AND ACKNOWLEDGMENTS - Group-based emergency notifications and acknowledgments are managed via a radio controller. A request to transmit an emergency notification with acknowledgment to an identified target group of subscriber devices is received at the radio controller from a requesting device. The radio controller identifies one or more base stations actively serving subscriber devices associated with the identified target group and identifies, for each of the identified one or more base stations, active channels including one or more of a control channel associated with the base station and active voice or data channels associated with the base station. The radio controller causes an emergency notification outbound signaling packet (OSP), requesting individual acknowledgment and identifying the target group of subscriber devices, to be broadcast on the identified active channels at the identified one or more base stations. Acknowledgments are forwarded back to one of the requesting device and a dispatch console. | 12-10-2015 |
Patent application number | Description | Published |
20080273943 | PARTIALLY COATED FASTENER ASSEMBLY AND METHOD FOR COATING - A fastener assembly includes a row of fasteners having a head, a tip, and a portion of a shank coated with a polymer composition. The polymer composition includes a polymer material such as polyurethane and metal particles. The polymer composition is used to provide improved corrosion and ultraviolet radiation resistance when used with naturally corrosive or pressure preservative treated wood. The fastener assembly is coated with the polymer composition by vacuum coating a dispersion of the polymer composition in a solvent such as water and removing the solvent. | 11-06-2008 |
20090266132 | METHOD AND DEVICE FOR THE MANUFACTURE OF MULTIPLE GROOVED WIRE - A plurality of rollers for producing longitudinal grooves in an elongated metal substrate, the plurality of rollers comprising a first set and a second set of rollers, the plurality of rollers having groove-forming fluted edges thereon. The plurality of rollers are aligned circumferentially around and parallel to a longitudinal axis of the elongated metal substrate, wherein the plurality of rollers are configured to produce an odd number of grooves distributed asymmetrically about a circumference of the elongated metal substrate. | 10-29-2009 |
20100014941 | APPARATUS AND METHOD OF MAKING A HEEL-LESS NAIL - A full-round head nail having an offset head is configured with a gusset formed integrally between an undersurface of the offset head and a superior portion of a shank. The head of the nail is relatively thin, and the shank is positioned radially off center of the round head such that no heel is formed at a point tangential to both the head and the shank. The gusset has a lofted surface tapering radially from a roundness at the zero heel to a taper at the toe. The gusset reinforces the junction of the shank with the head, supports the toe of the head, and distributes the force of a load on the head through a longitudinal axis of the shank, preventing the toe from bending or yielding and prevents the shank from yielding to the stresses of the load applied. | 01-21-2010 |
20100119329 | PARTIALLY COATED FASTENER ASSEMBLY AND METHOD FOR COATING - A fastener assembly includes a row of fasteners having a head, a tip, and a portion of a shank coated with a polymer composition. The polymer composition includes a polymer material such as polyurethane and metal particles. The polymer composition is used to provide improved corrosion and ultraviolet radiation resistance when used with naturally corrosive or pressure preservative treated wood. The fastener assembly is coated with the polymer composition by vacuum coating a dispersion of the polymer composition in a solvent such as water and removing the solvent. | 05-13-2010 |
20100288305 | BRUSH CORE AND BRUSH DRIVING METHOD - A brush core for engaging and rotating a generally cylindrical brush having a hollow bore is provided. The brush core includes, but is not limited to, a body section forming an outer surface for engaging the hollow bore of the cylindrical brush. The outer surface of the body section includes three or more sides. | 11-18-2010 |
20110098122 | APPARATUS AND METHOD OF MAKING A HEEL-LESS NAIL - A full-round head nail having an offset head is configured with a gusset formed integrally between an undersurface of the offset head and a superior portion of a shank. The head of the nail is relatively thin, and the shank is positioned radially off center of the round head such that no heel is formed at a point tangential to both the head and the shank. The gusset has a lofted surface tapering radially from a roundness at the zero heel to a taper at the toe. The gusset reinforces the junction of the shank with the head, supports the toe of the head, and distributes the force of a load on the head through a longitudinal axis of the shank, preventing the toe from bending or yielding and prevents the shank from yielding to the stresses of the load applied. | 04-28-2011 |
20110098123 | APPARATUS AND METHOD OF MAKING A HEEL-LESS NAIL - A full-round head nail having an offset head is configured with a gusset formed integrally between an undersurface of the offset head and a superior portion of a shank. The head of the nail is relatively thin, and the shank is positioned radially off center of the round head such that no heel is formed at a point tangential to both the head and the shank. The gusset has a lofted surface tapering radially from a roundness at the zero heel to a taper at the toe. The gusset reinforces the junction of the shank with the head, supports the toe of the head, and distributes the force of a load on the head through a longitudinal axis of the shank, preventing the toe from bending or yielding and prevents the shank from yielding to the stresses of the load applied. | 04-28-2011 |
20110305542 | PARTIALLY COATED FASTENER ASSEMBLY AND METHOD FOR COATING - A fastener assembly includes a row of fasteners having a head, a tip, and a portion of a shank coated with a polymer composition. The polymer composition includes a polymer material such as polyurethane and metal particles. The polymer composition is used to provide improved corrosion and ultraviolet radiation resistance when used with naturally corrosive or pressure preservative treated wood. The fastener assembly is coated with the polymer composition by vacuum coating a dispersion of the polymer composition in a solvent such as water and removing the solvent. | 12-15-2011 |
20120186195 | ZIPPER PROFILE CLOSING TOOL - The disclosure relates to hand held closing tool for a zipper, typically but not necessary a double zipper, on a reclosable package or bag. The tool is used to manually close, and possibly lock the zipper. This may be used with vacuum or other bags. Various embodiments are disclosed including a pliers-type embodiment, a box-type embodiment and a book-type embodiment. | 07-26-2012 |
20130244557 | AIRBORNE COMPONENT EXTRACTOR HOOD - An airborne component extraction system includes a source of a positive pressure air stream and a source of a negative pressure air stream. The air streams are directed through conduits to a hood that distributes the positive pressure air stream into a work area, and that draws the negative pressure air stream from the work area to remove airborne components within the work area. Aspects of the hood offer greatly enhanced performance in creating a controlled region for component removal and for drawing and removing the components for the work area. | 09-19-2013 |
20130244558 | AIRBORNE COMPONENT EXTRACTOR WITH ADJUSTABLE FLOW RATES - A extraction system is designed for metal working and other applications. The system may comprise a cart-type base or may be incorporated into a fixed or semi-fixed installation. A blower delivers a positive pressure airflow to a hood that creates an air region by directing the air through an annular space between inner and outer shrouds, impacting the air against a single generally perpendicular flange. Return air from the operation may be mixed with fresh air, both of which may be filtered, to supply the positive pressure air. Both air streams to and from the hood may be adjusted to optimize operation. Adjustments may be made at the base unit or remotely. | 09-19-2013 |