Glam girl Heddy Lamar may have used her good looks to good effect on the silver screen, but she put her smarts to better use as an inventor. During World War II, she co-patented a frequency-switching system for torpedo guidance that was considered years ahead of its time.
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| Number | Title | Issue Date |
| 8042017 | Apparatus and method for practical and efficient broadcast in mobile ad hoc networks The present invention demonstrates how network-coding can be applied to a deterministic broadcast approach, resulting in significant reductions in the number of transmissions in the network. We propose two algorithms, that rely only on local two-hop topology informa... | 10/18/2011 |
| 7633896 | Apparatus and method for enabling optimized gateway selection for inter-working between circuit-switched and internet telephony An optimized gateway selection process of the present invention is based on a universal mobility manager (UMM), a component for inter-technology location management. The UMM is capable of holding location information for diverse cellular networks, as well as for Int... | 12/15/2009 |
| 7610328 | Methods and apparatus for a multi-technology subscriber base for global roaming A method and a system for providing a connection to a subscriber having multiple subscriber devices utilizing different communications protocols are disclosed. The subscriber is associated with an address to which incoming calls are addressed. The method and system ... | 10/27/2009 |
| 7324545 | Methods and apparatus for reliable point to multipoint communications An advance over the prior art is achieved through an efficient method to retransmit erroneous frames by identifying the users who are most likely to experience a frame error and requests retransmissions from them. Since the recovery is done by starting with the most... | 01/29/2008 |
| 7313092 | Apparatus and method for an overload control procedure against denial of service attack The present invention is a methodology to prioritize packets based on the conditional probability that given the values of attributes carried by packet, the packet is a legitimate one. We will call this the conditional legitimate probability of a packet from here on... | 12/25/2007 |
| 7286560 | Methods and apparatus for optimum packet aggregation in a communication network The present invention is a method and apparatus to aggregate or bundle packets to optimize the resource utilization and improve the transport efficiency of packets which are transferred between various protocol layers in a communications network. One embodiment of t... | 10/23/2007 |
| 7245586 | Buffer management based on buffer sharing across ports and per-port minimum buffer guarantee This invention introduces an intelligent buffering sharing scheme that supports multiple service classes and multiple drop priorities per class. The available buffers are shared between different queues but at the same time every queue will be guaranteed a certain m... | 07/17/2007 |
| 7206286 | Dynamic DCH allocation methodology for packet data services in a wireless communications system In a UMTS network, each packet data service user requires a dedicated channel (DCH) to transmit at high data rates. However, the number of DCHs available is small due to code and power limitations. Thus many users will have to be allocated the same DCH on a time sha... | 04/17/2007 |
| 7203162 | Link state retransmission mechanism The present invention enhances reliable flooding of link state advertisements (LSAs) using retransmission. In accordance with the present invention, a technique is disclosed to make a retransmission timer more responsive to dynamic network conditions. This technique... | 04/10/2007 |
| 7180867 | Apparatus and method for flow path based fault detection and service restoration in a packet based switching system A methodology is provided for fault detection and service restoration in a multiservice switch on a per flow basis. An ingress source transmits the same data over each of two redundant cores. An egress receiver selects on a per flow bass which core to utilize. Bi-di... | 02/20/2007 |
| 7171160 | Method and apparatus for dynamic frequency selection in a wireless communications network An advance over the prior art is achieved through an efficient method for the dynamic selection of frequencies with low occupancy in a manner that results in minimizing the search for such frequencies and the risk of a large of number of nodes choosing the same freq... | 01/30/2007 |
| 7143154 | Internet protocol security framework utilizing predictive security association re-negotiation The present invention is a methodology for predicting when current sets of encryption keys used in a high speed data network are about to expire. The invention allows network elements of a communication system to re-negotiate new sets of keys well in advance so as t... | 11/28/2006 |
| 7133927 | Method and apparatus for supporting real-time multi-user distributed applications The present invention provides a network support mechanism, called Sync-VPN, that is transparent to real-time, multi-user distributed applications, such as online multi-player games in which the order of player actions is critical to the outcome. The invention uses ... | 11/07/2006 |
| 7127721 | Core object model for network management configuration applications in telecommunication systems The Core Network Management Object Model of the present invention generically models the physical and logical objects in a configuration management system. The present invention also models the generic action objects required to manipulate the network objects. Uniqu... | 10/24/2006 |
| 7096039 | Backhaul multicasting using Ethernet-based radio access networks The present invention sets forth a methodology for providing improved downlink backhaul services from a radio network controller (RNC) to a plurality of base stations via a backhaul network that provides Ethernet services. The Ethernet services are provided by a gro... | 08/22/2006 |
| 7072029 | Method and apparatus for testing optical fiber cables An optical fiber cable is tested to determine the zero dispersion frequencies of the sections of which it is made by directing light along it, the light comprising two optical frequency components having optical frequencies that differ by a predetermined amount Δω... | 07/04/2006 |
| 6980519 | Multi-table based grant generator for improved granularity in an ATM-PON A multi-table-based grant generator in accordance with the present invention solves the issue of bandwidth granularity, while maintaining the simplicity of a table approach. The present invention grant generator provides grants of fine granularity for regulation of ... | 12/27/2005 |
| 6973268 | Bi-directional optical transmission using dual channel bands A bi-directional optical transmission system according to the present invention provides transport of x optical channels over n nodes. The system supports two-way transport of the x channels over a single fiber connecting each of the nodes in sequence. The system is... | 12/06/2005 |
| 6894969 | Apparatus and method for redundancy of processing modules interfaced to a switching core The present invention is a core interface mechanism that permits 1:N type port protection on the core side of the switch such that core bandwidth is not wasted by the direct connection of service cards to the switching core. In an exemplary embodiment, a core interf... | 05/17/2005 |
| 6874052 | Expansion bridge apparatus and method for an I2C bus The present invention is an I2C (inter-IC control) bridge device which implements a communication protocol layered on top of a standard I2C protocol. The layered protocol used by the bridge device is termed the “Layered I2C Protoco... | 03/29/2005 |
| 6850504 | Access to communications systems In a code division multiple access (CDMA) wireless system, a wireless terminal transmits information packets to a communications systems controller. Each information packet comprises a piggy back field which indicates to the communication systems controller resource... | 02/01/2005 |
| 6839339 | Header compression for general packet radio service tunneling protocol (GTP)-encapsulated packets A UMTS (Universal Mobile Telecommunications System) core network supports a compression framework that provides for header compression of General Packet Radio Service Tunneling Protocol (GTP)-Encapsulated Packets. In particular; the GTP/UDP(User Datagram Protocol)/I... | 01/04/2005 |
| D498467 | Latch for electronic card faceplates | 11/16/2004 |
| 6801509 | Mobile point-to-point protocol A Network Access Server incorporates a “hand-off” feature that allows the NAS to transfer an existing PPP connection from one NAS to another NAS. In particular, 3 new control messages are defined for use in the NAS. Namely: (i) Continued Call Request, (ii) Conti... | 10/05/2004 |
| 6798745 | Quality of service management for voice over packet networks A Quality of Service (QoS) provision for voice and other delay sensitive call connections established over the Internet and other packet-based networks is achieved by generating a QoS performance parameter value corresponding to the performance of one or more packet... | 09/28/2004 |
| 6763007 | Two phase local mobility scheme for wireless access to packet based networks Local mobility within a subnet is supported by classifying wireless base stations, and the routers used to forward packets to those base stations, within defined domains. Domains are defined to incorporate a subnet having a plurality of base stations. Base stations ... | 07/13/2004 |
| 6735190 | Packet transport method device utilizing header removal fields Overhead is reduced and packet transport efficiency is increased for a flow of switched packets from a router by identifying a plurality of packets having a common destination node within a network and transmitting at least one control message to establish the flow ... | 05/11/2004 |
| 6721797 | Partial back pressure (PBP) transmission technique for ATM-PON using rate controllers to reduce a maximum output rate from a peak rate to a controlled rate Efficient transmission and fairness guarantees for upstream traffic in ATM-PONs are achieved using a partial back pressure (PBP) technique for traffic generated from user network interface (UNI) cards, e.g. Ethernet UNI cards or other network interface cards for non... | 04/13/2004 |
| 6704311 | Application-level switching server for internet protocol (IP) based networks An Internet Protocol (IP)-based network incorporates an application level switching server and a number of packet endpoints. A packet endpoint multiplexes application sessions destined for different packet endpoints into one multiplexed session that is te... | 03/09/2004 |
| 6687229 | Quality of service based path selection for connection-oriented networks Arrangements and methods for improving the probability of finding a connection path that meets user specified delay requirements. The improvements offer packet switches enhanced path selection that will improve the resource utilization of networks, both f... | 02/03/2004 |
| 6654359 | Wireless access to packet-based networks Domains are defined to incorporate a subnet including a plurality of base stations and routers. Base stations are used by mobile devices to attach to the wired portion of a packet-based network, such as the Internet, and exchange packets thereover with a ... | 11/25/2003 |
| 6610411 | Silicone gel tape for coax connector connection A protective tape used to protect an electrical connection from the effects of ultraviolet radiation. The protective tape comprises a silicone gel that contains a UV inhibitor such as zinc oxide. The protective tape is used to wrap a connection, such as a... | 08/26/2003 |
| 6353858 | Multiple-local area networks interconnected by a switch Local area networks are dynamically connected to one another by a switching system only when there is a packet to be exchanged between the two local area networks, otherwise the local area networks operate as separate and independent local area networks. ... | 03/05/2002 |
| 6145137 | Toilet water saver alert system Dual chambers are suspended from a toilet tank rim with selective height adjustment. The first chamber contains a liquid, water-soluble dye and a plunger pump and or eye dropper to dispense dye into the tank water to test the toilet flapper valve. The sec... | 11/14/2000 |
| 5745888 | Advanced file server apparatus and method An apparatus and method for enabling users of a network which have computers running several different operating systems to easily access each others files. In order that files may be referenced and accessed by computers utilizing different operating syst... | 04/28/1998 |
| 5745903 | Method and apparatus for file change notification A file change notification method and apparatus is disclosed which is efficient, simple and reliable. The invention utilizes a system call to notify a kernel of file modification events on files of interest. Upon occurrence of any file modification event,... | 04/28/1998 |
| 5745682 | Method and apparatus for utilizing location codes to identify a physical location of a computer station on a NetBIOS computer network A computer station location method and apparatus is disclosed which is efficient, simple and reliable. The invention utilizes a location code to indicate a physical location of a computer station of interest on a computer network. When users connect to th... | 04/28/1998 |
| 5503307 | Quick release automatic electric caulking gun This invention relates to an electrical caulking gun utilizing a triggering mechanism that controls both the mechanical and electrical operations of a plunger unit that applies axial pressure against a caulking cartridge. The triggering mechanism sits in ... | 04/02/1996 |