Did You Know...
...When G.G. Hubbard learned of his future son-in-law's invention, he called it "only a toy." His daughter was engaged to a young man named Alexander Graham Bell.
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| Number | Title | Issue Date |
| 7146001 | Dynamic essential line service A switch-based feature that dynamically designates a class B line as class A if the call is a GETS call. The line remains class A until a non-GETS call is placed, whereupon the line reverts to its normal class B designation. ... | 12/05/2006 |
| 7137002 | Differential authentication entity validation scheme for international emergency telephone service A network entry switch based statistical authenticating entity validation scheme wherein the level of IEPS call validation by authenticating entity is dependent on network load and the level of failed validations for a given authenticating entity. ... | 11/14/2006 |
| 6981022 | Using PSTN to convey participant IP addresses for multimedia conferencing An IP/PSTN hybrid multimedia conferencing system in which standard telephone and user station participants establish voice communications over the PSTN, and then exchange IP addresses in-band over the PSTN. User stations then negotiate capabilities over the IP netwo... | 12/27/2005 |
| 6956857 | Guaranteed admission and incremental bandwidth allocation in a packet network In a packet network, a feature wherein each node in the call path grants immediate admission to the network at a possibly reduced or even zero initial bandwidth. Additional bandwidth is incrementally allocated to the call as it becomes available until the maximum re... | 10/18/2005 |
| 6807262 | Central office control of receive and transmit handset volume A switch based feature that allows subscribers to adjust their incoming or outgoing audio signal strength. The value of the transmit or receive pad values on the subscriber line card are adjusted to control the strength of the audio signal transmitted to, or receive... | 10/19/2004 |
| 6804801 | Integrated circuit fault insertion system A system for fault insertion in an integrated circuit that resides in a functional portion of the integrated circuit. The fault insertion system is controlled through a Fault Control Register, comprising a Fault Identification Register (FIR), and a Fault Apply Regis... | 10/12/2004 |
| 6796818 | Extender card with insertion/removal arrangement An extender card arrangement having ejector levers attached to the unitary card portion of an extender card to aid in the insertion and removal of the extender card into and from a backplane, and having ejector lever brackets attached to the extender card card guide... | 09/28/2004 |
| 6788777 | Alternative treatment for AIN fault handling An enhancement to AIN fault handling that allows SSP triggers to access an alternative treatment application when fault handling is invoked. If an alternative treatment application is referenced in the BCM fault handling attribute, then the application is called whe... | 09/07/2004 |
| 6771643 | Interconnecting packet switches A multi-packet-switch system having a standard primary switch interconnect to handle inter-switch packet traffic, separate buffer areas for each primary interconnect and the device ports, the ability to identify specific packet streams by an identifier in each packe... | 08/03/2004 |
| 6747995 | System for multiple voice lines with data over a single subscriber loop A system that provides additional voice lines with data over a single two-wire subscriber loop. At the subscriber premise, one or more telephone instruments and data devices are connected to a digital modem into either a voice or a data interface. Analog voice signa... | 06/08/2004 |
| 6737960 | Recreational equipment rack with automatic reminder alarm An automatic reminder alarm for a recreational equipment vehicle rack comprising a transmitter placed in proximity of a garage, a receiver located inside the car, an alarm connected to and triggered by the receiver, and an actuating device that automatically activat... | 05/18/2004 |
| 6734794 | Alarm control algorithm for multi-sourced alarms A state machine that allows an audible alarm for a given fault condition to be extinguished while allowing subsequent audible alarms for different fault conditions. ... | 05/11/2004 |
| 6565370 | Connector protection bracket A connector protection bracket that mounts to the rear of an electronic assembly, having a flange extending away from the electronic assembly to protect the connector such that should the rear of the assembly drop upon removal from a shelf, the flange, ra... | 05/20/2003 |
| 6544311 | Chassis thermal zones A system for cooling an electrical chassis in which two separate zones are formed within the chassis by horizontal separators forming an internal floor and a ceiling, and a mid-located backplane acting as a vertical separator, spanning from floor to ceili... | 04/08/2003 |
| 6493442 | AIN triggers to invoke non-AIN features An addition to AIN that allows SSP triggers to jump to internal SSP addresses for feature processing without a return. There is no query sent to an SCP nor the associated response message, call processing is not suspended, and there is no need for fault h... | 12/10/2002 |
| 6490450 | Capturing and modifying of mobile subscriber information A system and method for capturing and modifying roaming mobile subscriber information such as Serving MSCID, cell and sector location information, original dialed digits, subscriber profile and return address point code in support of service applications,... | 12/03/2002 |
| 6487287 | Dynamic concentration of announcement circuits A system in which centralized announcement platforms are connected to host switches over dedicated trunks, and remote switches needing announcement services send a signaling message to a host switch requesting a connection to the announcement platform. A ... | 11/26/2002 |
| 6459297 | System for programming field programmable devices A system for programming field programmable devices (FPDs) of different types across different boards. An in-system programmable master (ISPM) communicates over a bus to in-system programmable slaves (ISPSs) on one or more boards. FPDs on each board are c... | 10/01/2002 |
| 6351395 | Backplane support bracket A backplane support bracket comprising a flange with opposing engaging tabs extending downward, and a flange extension arm with a connecting tab also extending downward. The opposing engaging tabs and flange fit over a frame module support cross-member in... | 02/26/2002 |
| 6292544 | Message waiting indicator in a computer integrated telephony system A computer integrated telephone system that uses the computer's display, internal audio system, or an external interface to indicate that a voice message is waiting. The invention operates with a telephony protocol that supports in-band signaling having M... | 09/18/2001 |
| 6282599 | System for providing bridging of backplane A backplane slot configuration and a bridge card for expanding the expansion slots of one system to include the expansion slots of an adjacent electrically separate system within the same cabinet, and bridging the expansion buses with minimal change of el... | 08/28/2001 |
| 6215864 | Method of accessing an IP in an ISDN network with partial release A method and system in an ISDN network for exchanging call control information between a switch and an IP, and for call set-up and call clearing for intermediate access to an IP. The invention utilizes the User-User Information (UUI) element of the Q.931 ... | 04/10/2001 |
| 6166547 | Line card loss of battery detector A line card circuit to prevent false off-hook signals resulting from the permanent loss of battery voltage at a line card. In the battery present condition, the 5V operating voltage is connected to the collector lead of an NPN transistor, which also suppl... | 12/26/2000 |
| 6075855 | Method of accessing a SCP in an ISUP network with partial release A SCP connected to a switch through an ISUP loop-back trunk redirects a dialed call to an intermediate destination. After the intermediate destination releases the call, all circuit segments from the intermediate destination back through and including the... | 06/13/2000 |
| 6041107 | Telephone extension switch hook state detection system A computer integrated telephony system embodied in a PC that includes a telephony interface connected to the local loop that detects whether one or more extension phones are off-hook by using the signal generating and detection capabilities found on a typ... | 03/21/2000 |
| 6021192 | Tone detector A tone detector for detecting a multi-tone input signal in the presence of speech and noise, comprising first signal processors that generate output signals indicating the energy level of the input signal with the frequency of one of the component tones b... | 02/01/2000 |
| 5978373 | Wide area network system providing secure transmission A system that provides secure transmission of data between a subscriber's PC and an online service provider (OLS) over an Ethernet WAN. The system includes a remote transceiver unit located at a subscriber site and connected to the subscriber's PC; a cent... | 11/02/1999 |
| 5944075 | Removable quick-fill fuel cap A removable fuel cap for use in a quick-fill refueling system for a motorcycle during a motorcycle race. The fuel cap comprises a movable plunger in a cylindrical windowed housing, the plunger being normally held in a closed position by a coil spring. The... | 08/31/1999 |
