Patents Represented by Attorney, Agent or Law Firm Thomas, Kayden, Horstemeyer & Risley, L.L.P.
  • Patent number: 8040155
    Abstract: Various systems and methods are provided for integrated circuit clocking. In one embodiment, an integrated circuit system includes a plurality of combinational logic groups, each combinational logic group having a propagation time; and means for delaying a synchronizing clock signal supplied to at least one of the plurality of combinational logic groups based upon a period of the synchronizing clock signal and the propagation time of the at least one combinational logic group. In another embodiment, a method includes delaying a clock signal to produce a delayed clock signal and communicating the clock signal and the delayed clock signal to separate groups of the combinational logic circuit during a clock cycle that results in a reduction in power consumption by the combinational logic circuit.
    Type: Grant
    Filed: October 12, 2009
    Date of Patent: October 18, 2011
    Assignee: East-West Innovation Corporation
    Inventors: Deanne Tran Vo, Thomas Jeffrey Bingel
  • Patent number: 7483481
    Abstract: A system for adaptively updating precoder taps comprises a first signal path, a second signal path, a delay mechanism, and logic. The first signal path is configured to receive encoded signals. The first signal path has a decoder that is configured to decode the encoded signals thereby recovering data originally transmitted from a remote transmitter. The delay mechanism is configured to receive and delay the encoded signals. The second signal path is connected in parallel with the first signal path and is configured to receive the encoded signals delayed by the delay mechanism. The second signal path has an adaptive filter configured to filter the encoded signals received by the second signal path based on a set of coefficients of the adaptive filter. The adaptive filter is configured to adaptively update the coefficients based on the data recovered by the first signal path.
    Type: Grant
    Filed: August 31, 2004
    Date of Patent: January 27, 2009
    Assignee: Adtran, Inc.
    Inventors: Ayman Ghobrial, Fred Chu, Michael D. Turner, Kevin W. Schneider
  • Patent number: 7478029
    Abstract: A cable simulator that comprises an input device configured to receive a communication signal. The cable simulator further comprises a circuit configured to simulate attenuation in both the differential mode and common mode components of a communication signal.
    Type: Grant
    Filed: November 3, 2004
    Date of Patent: January 13, 2009
    Assignee: Adtran, Inc.
    Inventor: Daniel M. Joffe
  • Patent number: 7471931
    Abstract: A system for controlling transceivers based on a location of the transceivers, as indicated by a location indicator, helps to reduce crosstalk interference in signals transmitted from central offices. The system utilizes a location indicator and logic. The location indicator is communicatively coupled to each of a plurality of transceivers and is indicative of whether the plurality of transceivers are located at an intermediate terminal or a central office. The logic is configured to control a physical layer of each of the transceivers based on the location indicator.
    Type: Grant
    Filed: September 23, 2003
    Date of Patent: December 30, 2008
    Assignee: ADTRAN, Inc.
    Inventor: Arlynn Wilson
  • Patent number: 7460498
    Abstract: An anomaly detection system comprises an echo canceler and anomaly detection logic. The echo canceler has a plurality of taps respectively associated with a plurality of tap coefficients. The anomaly detection logic is configured to determine a difference between a new tap coefficient associated with one of the taps and a previous tap coefficient associated with the one tap. The anomaly detection logic is configured to perform a comparison between the difference and a threshold and to detect an anomaly along a telecommunication line based on the comparison.
    Type: Grant
    Filed: December 4, 2003
    Date of Patent: December 2, 2008
    Assignee: ADTRAN, Inc.
    Inventors: Gary Hunt, Fred Chu, Lee T. Gusler, Jr.
  • Patent number: 7457234
    Abstract: A data communication system for communicating between a central office and a remote premises comprises a first transceiver, a second transceiver, and control logic. The first transceiver is coupled to a first communication connection extending from the central office to the remote premises and is configured to communicate with a central office transceiver. The second transceiver is coupled to a second communication connection extending from the central office to the remote premises. The control logic resides at the remote premises and is configured to detect an error condition associated with communication between the first transceiver and the transceiver located at the central office.
    Type: Grant
    Filed: March 1, 2004
    Date of Patent: November 25, 2008
    Assignee: Adtran, Inc.
    Inventors: John B. Bartell, Dean D. Bekken, II, Mark J. Ogden
  • Patent number: 7414717
    Abstract: A spectral correlator comprises a specimen and an optical device configured to collect light from the specimen and to optically determine a similarity of a received first spectra of the light collected from the first spectra and a second known spectra.
    Type: Grant
    Filed: October 21, 2003
    Date of Patent: August 19, 2008
    Assignee: Fastmetrix, Inc.
    Inventor: Gary W. Kamerman
  • Patent number: 7363360
    Abstract: An element management system (EMS) for monitoring elements of a communication network utilizes a plurality of clients, a plurality of network elements, and an element management system (EMS). The clients and the network elements are interfaced with the EMS. The EMS is configured to track which of the network elements are of interest to the clients and to automatically monitor the network elements based on which of the network elements are determined, by the EMS, to be of interest to the clients. The EMS is further configured to provide the clients with information indicative of the monitored elements. Furthermore, the EMS may be configured to store graphical user interface (GUI) code that can be utilized to provide a GUI for monitoring and/or changing a network element. The EMS may provide the GUI code to the clients on demand and may enable a user to update the GUI code stored at the EMS.
    Type: Grant
    Filed: February 6, 2002
    Date of Patent: April 22, 2008
    Assignee: Adiran, Inc.
    Inventors: Robert L. Miller, II, Steven A. Bailey, Kent E. Darzi
  • Patent number: 7349327
    Abstract: A router in one embodiment of the present disclosure has first router logic and boot logic. The first router logic is configured to operate the router, and the boot logic is configured to receive updated router logic from a network and to perform a first reboot. The boot logic is further configured to initialize deactivation of the first router logic and initialize activation of the updated router logic during the first reboot such that a plurality of functions for the router are enabled during execution of the updated router logic. The boot logic is also configured to perform, in response to an error during execution of the updated router logic, a second reboot such that at least one of the functions is disabled.
    Type: Grant
    Filed: August 28, 2003
    Date of Patent: March 25, 2008
    Assignee: ADTRAN, Inc.
    Inventors: Roberto Puon, David Glenn Perkinson
  • Patent number: 7318527
    Abstract: An apparatus (100, 100?, 100?) for separating organic material from inorganic material includes a container (1), a feeding apparatus (4), a charging apparatus (9), a lifting apparatus (21), a discharging apparatus (24) and a removal apparatus (7). The feeding apparatus (4) is located in the upper portion of the container (1), and it serves to introduce inorganic material polluted with organic material into the container (1). The charging apparatus (9) is located in the lower portion of the container, and it serves to introduce cleaning water into the container (1). The lifting apparatus (21) is located in the container (1), and it serves to substantially subject the inorganic and organic material to an upwardly directed component of movement. The lifting apparatus (21) and the charging apparatus (9) produce a fluidized layer (22) in the container (1) during operation of the apparatus (100, 100?, 100?). The fluidized layer (22) causes the organic material to be separated from the inorganic material.
    Type: Grant
    Filed: September 21, 2004
    Date of Patent: January 15, 2008
    Assignee: Hans Huber AG Maschinen-und Anlagenbau
    Inventor: Wolfgang Branner
  • Patent number: 7302361
    Abstract: A test unit for data communication networks is formed by placing one or more application modules between a front module and a rear module. The modules are secured together with a latching system and a bus structure provides for control and performance information transfers between modules. The front module may serve a user interface via a touch screen. In addition, the front module has a variety communication ports that provide for one or more remote user interfaces. Battery packs are located in the front module and the rear module for providing power to the test unit.
    Type: Grant
    Filed: November 26, 2003
    Date of Patent: November 27, 2007
    Assignee: Trend Communications, Inc.
    Inventors: Pere Baleta, Salvador Borras, Jordi Colomer, Thomas Neher
  • Patent number: 7266092
    Abstract: A communication system and method adaptively control frequency ranges of a pair of interconnected transceivers in an effort to enhance the data rate in one direction. In this regard, a full duplex communication session is established between a first transceiver and a second transceiver. Signals having frequencies within an overlapping bandwidth are communicated between the first and second transceivers during a data phase. A transmission capacity of one of the transceivers is determined based on the communicated signals, and a comparison between this transmission capacity and a specified transmission capacity for the one transceiver is performed. A portion of the overlapping bandwidth is adaptively selected based on the comparison, and the one transceiver is prevented from transmitting signals having frequencies within the selected portion of the bandwidth during the data phase.
    Type: Grant
    Filed: January 30, 2003
    Date of Patent: September 4, 2007
    Assignee: Adtran, Inc.
    Inventors: Kevin W. Schneider, Arlynn W. Wilson
  • Patent number: 7262664
    Abstract: Typical amplifier circuits used to implement various type of power amplifiers, including line drivers, are capable of supplying high output currents while maintaining a low standby current. Variation in the manufacturing process, however, can lead to large variations in quiescent current of the amplifier. In particular, transistor mismatch and input offset voltage can cause the quiescent current to be very inconsistent from chip to chip. An amplifier in accordance with the present disclosure uses a transconductance amplifier to stabilize the quiescent current. The transconductance amplifier reduces the gain of the amplifier's input stage for very small signals such as the input offset voltage. The transconductance amplifier saturates for input signals larger than the expected offset voltage, allowing the normal high gain of the input stage to amplify the signal without significant gain reduction.
    Type: Grant
    Filed: June 2, 2005
    Date of Patent: August 28, 2007
    Assignee: Adtran, Inc.
    Inventors: Daniel M. Joffe, Paul Calvin Ferguson
  • Patent number: 7208669
    Abstract: A video game system comprises memory for storing data defining graphical objects for use in a video game. The system further comprises logic configured to enable a user to select at least one musical song to be played during a run of the video game. The logic is further configured to control at least one of the graphical objects during the run of the video game based on an attribute correlated with the selected song.
    Type: Grant
    Filed: August 25, 2004
    Date of Patent: April 24, 2007
    Assignee: Blue Street Studios, Inc.
    Inventors: Robert V. Wells, Brian K. Mitchell, Jeremy S. Reddoch, William A. Koons
  • Patent number: 7189362
    Abstract: A microcantilever sensing system includes a waveguide cantilever that permits an optical signal to propagate through an endface of the cantilever. The propagated signal is received by a receiver waveguide across a gap from the cantilever. The receiver waveguide provides the optical signal to a differential beamsplitter. The signal is differentially split according to the position of the optical signal incident upon the receiving waveguide. A method of determining a deflection waveguide microcantilever is also disclosed. An optical signal is transmitted from the endface of a waveguide microcantilever and received by the receiver waveguide. The optical signal is differentially split and then each split signal is compared to determine beam deflection. A method of fabricating a microcantilever sensor provides a differential beamsplitter in optical communication with a waveguide cantilever.
    Type: Grant
    Filed: March 5, 2004
    Date of Patent: March 13, 2007
    Assignee: University of Alabama in Huntsville
    Inventors: Gregory Nordin, Jaime Cardenas Gonzalez, Michael A. George
  • Patent number: 7162676
    Abstract: A data communication system comprises a forward error correction (FEC) module, a first transceiver, a second transceiver, and logic. The FEC module is configured to receive data and to define FEC code words based on the received data. The first transceiver is coupled to a first communication line, and the second transceiver is coupled to a second communication line. The logic is configured to selectively enable the FEC module to implement a desired FEC scheme based on an estimated error rate associated with the first communication line and an estimated error rate associated with the second communication line.
    Type: Grant
    Filed: September 22, 2003
    Date of Patent: January 9, 2007
    Assignee: Adtran, Inc.
    Inventors: Clint S. Coleman, Charles E Polk, Jr., Robert A. Barrett
  • Patent number: 7151330
    Abstract: A vector inversion generator utilizes closed-path ferrites to modify the characteristics of the generator. The closed-path ferrites increase an inductance within a portion of the generator and additionally provide a protective shield for associated electronic circuits. By increasing the inductance, the closed-path ferrites increase the voltage efficiency and the energy efficiency of the generator.
    Type: Grant
    Filed: March 20, 2003
    Date of Patent: December 19, 2006
    Assignee: Radiance Technologies, Inc.
    Inventor: Millard Franklin Rose
  • Patent number: 7152100
    Abstract: A system for provisioning a network access device based on control settings received from a remote location utilizes logic and memory for storing a set of operational control settings and a set of default control settings for the network access device. The logic is configured to store, in the memory, the operational control settings based on data received from a remote device via a network. The logic is configured to control the network access device based on the operational control settings and to begin controlling the network access device based on the default control settings in lieu of the operational control settings in response to a determination that the network access device is unable to communicate over the network based on the operational control settings, thereby enabling the network access device to be remotely re-provisioned.
    Type: Grant
    Filed: July 9, 2002
    Date of Patent: December 19, 2006
    Assignee: Adtran, Inc.
    Inventors: H. Keith Thomas, Douglas T. Albright
  • Patent number: 7117825
    Abstract: A water heating system has a tank, a first heating element, a first temperature sensor, and a controller. The first heating element is mounted on the tank, and the controller is electrically coupled to the first temperature sensor. The controller is configured to detect a stacking condition based on the first temperature sensor and to disable the first heating element in response to detection of the stacking condition.
    Type: Grant
    Filed: April 28, 2005
    Date of Patent: October 10, 2006
    Assignee: Synapse, Inc.
    Inventor: Terry G. Phillips
  • Patent number: 7116256
    Abstract: A system has a first digital-to-analog (D/A) converter to receive a digital signal and to convert the digital signal into an analog pulse, a second D/A converter to cancel residual energy resulting from a previous pulse if a predetermined sequence of digital data is received, and a third D/A converter to control a falling edge of the analog pulse. Additionally, the system has logic to detect the sequence of digital data and to generate control data for at least one of the D/A converters from the digital data sequence thereby ensuring that the analog signal complies with the specified pulse mask template.
    Type: Grant
    Filed: August 16, 2005
    Date of Patent: October 3, 2006
    Assignee: ADTRAN, Inc.
    Inventors: Daniel M. Joffe, Paul C. Ferguson