Patents Represented by Attorney Philip J. Feig
  • Patent number: 7496065
    Abstract: The invention is addressing the problem of efficient formation and maintenance of piconets with assistance from the master of an already existing piconet. The master of an existing piconet initiates the formation of a new helper piconet by at least two of its slaves. One of the slaves of the existing piconet becomes the master of the newly formed helper piconet and the other slave becomes a slave of the helper piconet. This process can be used to expand the number of Bluetooth devices that can use an Internet access point. It can also be used to permit two slave devices to communicate directly with one another so as not to unnecessarily use bandwidth available through the master. Finally, the method and system could be used to provide a method of efficient hand-off from one piconet to another.
    Type: Grant
    Filed: November 19, 2002
    Date of Patent: February 24, 2009
    Assignee: Telcordia Technologies, Inc.
    Inventors: Farooq Anjum, Ravi Jain, Maria Adamou
  • Patent number: 7477602
    Abstract: The present invention presents an architecture to dynamically measure and estimate the throughput perceived by a user during a connection in real-time in a wireless network system. The architecture system design of the present invention allows for information gathering independent of the mathematical models used and takes into account security settings in the network hosts. The present invention also sets forth a number of throughput estimators (TEs) that can be used within the architecture to gather the information needed to carry out the throughput estimation calculations. The throughput estimations can then be used for download rate control, QoS, load balancing, etc. The present invention also provides algorithms to calculate the real-time throughput experienced by a user flow.
    Type: Grant
    Filed: April 1, 2004
    Date of Patent: January 13, 2009
    Assignees: Telcordia Technologies, Inc., Toyota Infotechnology Center, U.S.A., Inc.
    Inventors: Yibei Ling, Jasmine Chennikara, Wai Chen, Onur Altintas
  • Patent number: 7477607
    Abstract: Methods for allocating blocks of addresses to nodes in an IP communications network determine an optimal set of serving subnets, referred to as resources, for a single node in an IP communications network with given input demands for blocks of addresses. An optimal set of resources is determined at the node to a relaxed problem that aggregates all the demands to a single large demand and deletes the constraints that each demand must be assigned to a single resource. Each of the original demands is then assigned to a single resource from among those determined by the solution to the relaxed problem. The methods can also be used to allocate new resources to nodes that already have existing resources, and to allocate subnets at all nodes in a tree network by solving repeatedly single-node problems.
    Type: Grant
    Filed: June 22, 2005
    Date of Patent: January 13, 2009
    Assignee: Telcordia Technologies, Inc.
    Inventor: Hanan Luss
  • Patent number: 7466652
    Abstract: A system and method for the implementation of fine-grained quality of service in a mobile telecommunications environment uses an Auto-IP Policy Decision Point (PDP) to determine what traffic optimizations actions should be taken in reaction to various network conditions. The Auto-IP PDP uses as inputs information from a Gb interface probe to determine the user identification of an IP data flow, information from the radio access network (RAN) network management system (NMS) regarding network congestion. The cell traffic information is passed onto a traffic analysis and processing engine, the Auto-IP PDP which maps the real-time traffic information into an n-dimensional traffic model. An automated policy decision guiding algorithm is executed on the n-dimensional traffic model and selects policy based on the traffic and cell congestion conditions, without human intervention. Additionally, a consistency check is performed to ensure that new policies are consistent with existing policies.
    Type: Grant
    Filed: August 13, 2004
    Date of Patent: December 16, 2008
    Assignee: Telcordia Technologies, Inc.
    Inventors: Richard Lau, Bruce Siegell
  • Patent number: 7443801
    Abstract: Disclosed is a technique for data network congestion diagnosis using remote estimation of round-trip delays. A monitoring node transmits test messages between network nodes and measures the transit times between when the test messages are transmitted from, and when they return to, the monitoring node. A path delay between network nodes is determined based on the measured time delays. The techniques for determining network path delay are also utilized in conjunction with a three phase test procedure for diagnosing network congestion problems. Due to various network topologies and routing tables, certain confirmatory checks may be required to determine whether the procedures of the first or second phase test procedures are appropriate for particular path segments. Further, queuing delays may be determined by subtracting traffic independent delays from the measured transit times of the test messages, and such queuing delays may be used to determine the path delays.
    Type: Grant
    Filed: October 28, 2004
    Date of Patent: October 28, 2008
    Assignee: Telcordia Technologies, Inc.
    Inventors: Arnold L. Neidhardt, Yegnanarayanan Chandramouli
  • Patent number: 7433297
    Abstract: A wireless Internet access system and method supports the transmission and reception of multiple types of traffic between mobile subscriber units and existing networks. A frame structure is used that can support the transmission of multiple types of traffic and adapt to changes in the traffic types needed and the amount of data for a particular traffic type. In addition, data transmission is performed using orthogonal frequency division multiplexing and differential phase shift keying to avoid intersymbol interference. Receiving units in the mobile subscriber units and existing networks include antenna arrays to provide a multipath transmission.
    Type: Grant
    Filed: December 27, 2004
    Date of Patent: October 7, 2008
    Assignee: Telcordia Technologies, Inc.
    Inventors: Melbourne Barton, Joseph C. Liberti
  • Patent number: 7159026
    Abstract: Methods and apparatus are provided to determine performance of a network. A first measurement relating to a first layer of communications in the network and a second measurement relating to a second layer of communications in the network are provided. Based on the first and second measurements, a set of parameters is generated. The performance of the network is then determined based on the generated set of parameters.
    Type: Grant
    Filed: January 31, 2002
    Date of Patent: January 2, 2007
    Assignee: Telcordia Technologies, Inc.
    Inventors: Richard C. Lau, Frank C. D. Tsai, Arturo Cisneros
  • Patent number: 6441298
    Abstract: A surface-plasmon enhanced photovoltaic device including: a first metallic electrode having an array of apertures, an illuminated surface and an unilluminated surface, at least one of the surfaces having an enhancement characteristic resulting in a resonant interaction of incident light with surface plasmons; a second electrode spaced from the first metallic electrode; and a plurality of spheres corresponding to the array of apertures and disposed between the first metallic and second electrodes, each sphere having a first portion of either p or n-doped material and a second portion having the other of the p or n-doped material such that a p-n junction is formed at a junction between the first and second portions.
    Type: Grant
    Filed: August 15, 2000
    Date of Patent: August 27, 2002
    Assignee: NEC Research Institute, Inc
    Inventor: Tineke Thio
  • Patent number: 6438252
    Abstract: A message in the form of a sequence of bits is encoded into relatively short, non-binary signals. The message (or vector) is divided into two halves. The encoder first determines an encoding of the message into a vector half the length of the eventual encoded vector. The half-length vector forms the first half of the encoded, and is negated to form the second half of the encoded vector. An identical synchronization signal is added to both halves of the encoded vector. The synchronization signal is used to compensate for the possibility that the received vector (or message) is cyclically rotated from the original vector. During decoding, the decoder first obtains the synchronization signal by adding the two halves of the vector together, canceling the encoded message. The synchronization signal is used to find the original cyclical shift of the vector. The decoder obtains the half-length encoded message vector by taking the difference between the two halves of the aligned full-length encoded vector.
    Type: Grant
    Filed: March 26, 2001
    Date of Patent: August 20, 2002
    Assignee: Signafy, Inc.
    Inventor: Matthew L. Miller
  • Patent number: 6295524
    Abstract: Edit distance costs or similarity of two data strings is optimized, or the costs are minimized, based upon a learning algorithm using examples of similar strings, i.e. learning data. In this manner, the costs are learned rather than being a predetermined fixed or engineered table of entries.
    Type: Grant
    Filed: October 29, 1996
    Date of Patent: September 25, 2001
    Assignees: NEC Research Institute, Inc., Princeton University
    Inventors: Peter N. Yianilos, Eric Sven Ristad
  • Patent number: 6289342
    Abstract: An autonomous citation indexing system which can be used as an assistant agent automates and enhances the task of finding publications in electronic form, including publications located on the world wide web. The system parses citations from papers and identifies citations to the same paper that may differ in syntax. The system also extracts and provides the context of citations to a given paper, allowing a researcher to determine what is published in other papers about a given paper. Common citations and word or string vector distance similarity are used to find related articles in a search.
    Type: Grant
    Filed: May 20, 1998
    Date of Patent: September 11, 2001
    Assignee: NEC Research Institute, Inc.
    Inventors: Stephen R. Lawrence, C. Lee Giles, Kurt D. Bollacker
  • Patent number: 6278792
    Abstract: A watermarking procedure that is applicable to images, audio, video and multimedia data to be watermarked divides the data to be watermarked into a set of n×n blocks, such as the 8×8 blocks of MPEG. The same watermark signal can be distributed throughout the set of blocks in a large variety of ways. This allows the insertion algorithm to be changed without affecting the decoders. The decoding procedure first sums together the DCT coefficients of N sets of 8×8 blocks to form a set of N summed 8×8 blocks and then extracts the watermark from the summed block. Since the sum of the DCT blocks is equal to the DCT of the sum of the intensity blocks, efficient decoding can occur in both the spatial and frequency domains. The symmetric nature of the decoding process allows geometric distortions to be handled in the spatial domain and other signal distortions to be handled in the frequency domain.
    Type: Grant
    Filed: April 26, 2000
    Date of Patent: August 21, 2001
    Assignee: NEC Research Institute, Inc.
    Inventors: Ingemar J. Cox, Matthew L. Miller, Ryoma Oami
  • Patent number: 6263087
    Abstract: A message in the form of a sequence of bits is encoded into relatively short, non-binary signals. The message (or vector) is divided into two halves. The encoder first determines an encoding of the message into a vector half the length of the eventual encoded vector. The half-length vector forms the first half of the encoded, and is negated to form the second half of the encoded vector. An identical synchronization signal is added to both halves of the encoded vector. The synchronization signal is used to compensate for the possibility that the received vector (or message) is cyclically rotated from the original vector. During decoding, the decoder first obtains the synchronization signal by adding the two halves of the vector together, canceling the encoded message. The synchronization signal is used to find the original cyclical shift of the vector. The decoder obtains the half-length encoded message vector by taking the difference between the two halves of the aligned full-length encoded vector.
    Type: Grant
    Filed: June 26, 1998
    Date of Patent: July 17, 2001
    Assignee: Signafy, Inc.
    Inventor: Matthew L. Miller
  • Patent number: 6208735
    Abstract: Digital watermarking of audio, image, video or multimedia data is achieved by inserting the watermark into the perceptually significant components of a decomposition of the data in a manner so as to be visually imperceptible. In a preferred method, a frequency spectral image of the data, preferably a Fourier transform of the data, is obtained. A watermark is inserted into perceptually significant components of the frequency spectral image. The resultant watermarked spectral image is subjected to an inverse transform to produce watermarked data. The watermark is extracted from watermarked data by first comparing the watermarked data with the original data to obtain an extracted watermark. Then, the original watermark, original data and the extracted watermark are compared to generate a watermark which is analyzed for authenticity of the watermark.
    Type: Grant
    Filed: January 28, 1999
    Date of Patent: March 27, 2001
    Assignee: NEC Research Institute, Inc.
    Inventors: Ingemar J. Cox, Joseph J. Kilian, Talal G. Shamoon
  • Patent number: 6195228
    Abstract: Thin, horizontal-plane Hall sensors for read-head in magnetic recordings and methods for fabricating the sensor provide a novel sensor exhibiting high sensitivity and high spatial resolution.
    Type: Grant
    Filed: January 6, 1997
    Date of Patent: February 27, 2001
    Assignee: NEC Research Institute, Inc.
    Inventors: James Bennett, Stuart A. Solin, Richard A. Stradling, Tineke Thio
  • Patent number: 6154571
    Abstract: A watermarking procedure that is applicable to images, audio, video and multimedia data to be watermarked divides the data to be watermarked into a set of n.times.n blocks, such as the 8.times.8 blocks of MPEG. The same watermark signal can be distributed throughout the set of blocks in a large variety of ways. This allows the insertion algorithm to be changed without affecting the decoders. The decoding procedure first sums together the DCT coefficients of N sets of 8.times.8 blocks to form a set of N summed 8.times.8 blocks and then extracts the watermark from the summed block. Since the sum of the DCT blocks is equal to the DCT of the sum of the intensity blocks, efficient decoding can occur in both the spatial and frequency domains. The symmetric nature of the decoding process allows geometric distortions to be handled in the spatial domain and other signal distortions to be handled in the frequency domain.
    Type: Grant
    Filed: July 17, 1998
    Date of Patent: November 28, 2000
    Assignees: NEC Research Institute, Inc., NEC Corporation
    Inventors: Ingemar J. Cox, Matthew L. Miller, Ryoma Oami
  • Patent number: 6124444
    Abstract: In DNA computing there are DNA sequences which will substantially eliminate binding errors for molecules used in the computing processing. The elimination of binding errors will prevent extraction errors and binding during computations. A set of DNA sequences {Z.sub.j } and spacer sequence S.sub.0 must meet the criteria that there is no subsequence .chi. of length k, which occurs in any two sequences {Z.sub.j } or subsequence .chi. occurs in a sequence S.sub.0 Z.sub.j S.sub.0 and the complement .chi. occurs in a sequence S.sub.0 Z.sub.j S.sub.0, where Z.sub.j is at least of length k, so that it may be extracted.
    Type: Grant
    Filed: November 3, 1995
    Date of Patent: September 26, 2000
    Assignee: NEC Research Institute, Inc.
    Inventor: Eric Burton Baum
  • Patent number: 6117690
    Abstract: Thin, horizontal-plane Hall sensors for read-head in magnetic recordings and methods for fabricating the sensor provide a novel sensor exhibiting high sensitivity and high spatial resolution.
    Type: Grant
    Filed: February 1, 1999
    Date of Patent: September 12, 2000
    Assignee: NEC Research Institute, Inc.
    Inventors: James Bennett, Stuart A. Solin, Richard A. Stradling, Tineke Thio
  • Patent number: 6108434
    Abstract: Detection of a watermark in blocks of video or image data which has been subjected to affine geometric distortion is accomplished by approximating the distortion by a spatially varying translation of the blocks. The watermark is extracted by spatial translations of the blocks based on an assumed affine geometric distortion. The extracted watermarks are correlated with possible watermarks and the maximum correlator output is tested for statistical significance in order to determine whether a watermark is present in the image or video frame. The data may be compressed or uncompressed data. If the affine geometric distortion is known, a search for the maximum correlator output over a space of possible distortions can be performed.
    Type: Grant
    Filed: September 12, 1997
    Date of Patent: August 22, 2000
    Assignee: Signafy, Inc.
    Inventors: Ingemar J. Cox, Matthew L. Miller
  • Patent number: 6092051
    Abstract: A number-theoretic based algorithm provides for secure receipt-free voting. A vote generating center generates a choice of votes for each voter or vote chooser. The votes are encrypted, shuffled, and conveyed to a vote chooser along with information regarding how the votes were shuffled without being intercepted en route. The information is preferably sent along untappable secure channels. The method can incorporate validation of generation and shuffling of the votes using chameleon commitment and interactive proofs. The invention can be realized by current-generation personal computers with untappable channels and access to an electronic bulletin board.
    Type: Grant
    Filed: May 19, 1995
    Date of Patent: July 18, 2000
    Assignees: NEC Research Institute, Inc., NEC Corporation
    Inventors: Joseph John Kilian, Kazue Sako