Patent application number | Description | Published |
20100100250 | REAL-TIME PERFORMANCE MONITORING AND MANAGEMENT SYSTEM - A real-time performance monitoring system for monitoring an electric power grid. The electric power grid has a plurality of grid portions, each grid portion corresponding to one of a plurality of control areas. The real-time performance monitoring system includes a monitor computer for monitoring at least one of reliability metrics, generation metrics, transmission metrics, suppliers metrics, grid infrastructure security metrics, and markets metrics for the electric power grid. The data for metrics being monitored by the monitor computer are stored in a data base, and a visualization of the metrics is displayed on at least one display computer having a monitor. The at least one display computer in one said control area enables an operator to monitor the grid portion corresponding to a different said control area. | 04-22-2010 |
20120022707 | WIDE-AREA, REAL-TIME MONITORING AND VISUALIZATION SYSTEM - A real-time performance monitoring system for monitoring an electric power grid. The electric power grid has a plurality of grid portions, each grid portion corresponding to one of a plurality of control areas. The real-time performance monitoring system includes a monitor computer for monitoring at least one of reliability metrics, generation metrics, transmission metrics, suppliers metrics, grid infrastructure security metrics, and markets metrics for the electric power grid. The data for metrics being monitored by the monitor computer are stored in a data base, and a visualization of the metrics is displayed on at least one display computer having a monitor. The at least one display computer in one said control area enables an operator to monitor the grid portion corresponding to a different said control area. | 01-26-2012 |
20120278015 | WIDE-AREA, REAL-TIME MONITORING AND VISUALIZATION SYSTEM - A real-time performance monitoring system for monitoring an electric power grid. The electric power grid has a plurality of grid portions, each grid portion corresponding to one of a plurality of control areas. The real-time performance monitoring system includes a monitor computer for monitoring at least one of reliability metrics, generation metrics, transmission metrics, suppliers metrics, grid infrastructure security metrics, and markets metrics for the electric power grid. The data for metrics being monitored by the monitor computer are stored in a data base, and a visualization of the metrics is displayed on at least one display computer having a monitor. The at least one display computer in one said control area enables an operator to monitor the grid portion corresponding to a different said control area. | 11-01-2012 |
20130282314 | WIDE-AREA, REAL-TIME MONITORING AND VISUALIZATION SYSTEM - A real-time performance monitoring system for monitoring an electric power grid. The electric power grid has a plurality of grid portions, each grid portion corresponding to one of a plurality of control areas. The real-time performance monitoring system includes a monitor computer for monitoring at least one of reliability metrics, generation metrics, transmission metrics, suppliers metrics, grid infrastructure security metrics, and markets metrics for the electric power grid. The data for metrics being monitored by the monitor computer are stored in a data base, and a visualization of the metrics is displayed on at least one display computer having a monitor. The at least one display computer in one said control area enables an operator to monitor the grid portion corresponding to a different said control area. | 10-24-2013 |
Patent application number | Description | Published |
20080247497 | Clock distribution for 10GBase-T analog front end - A 10GBASE-T clocking method that limits EMI and increases SNR, while reducing power and conserving chip space is provided. The method includes simultaneous clocking of transmitters in an analog front end of a 10 gigabit Ethernet. The method includes providing at least two channels to a 10GBase-T analog front end, where the channel has at least a transmitter port and a receiver port, and providing at least two phase interpreters to the analog front end, where each phase interpreter is dedicated to one receiver port. A central clock generator is disposed to distribute a transmit clock to the phase interpreters and to the transmitter ports, where the transmit clock is further provided to the receiver ports from the phase interpreters. Any clock delay between the clock generator and each channel is balanced and clock phases between the channels are matched. | 10-09-2008 |
20090002210 | Analog correction of a phase-mismatch in high-sample rate time-interleaved analog-to-digital converters - A method of phase mismatch correction in high-sample rate time-interleaved analog-to-digital converters (ADC) is provided. An ADC parallel array has an output signal that is processed by a phase-mismatch detector. The detector drives a clock generator control circuit for the ADC array. The clock generator includes a common mode logic (CML) buffer, a CMOS, a non-overlapping generator, a DAC and a decimating low-pass filter. The CML receives a reference clock signal providing source line control (SLC) to the CMOS, the CMOS provides SLC to the DAC that is controlled by the filter which receives a digital control signal from the phase mismatch detector. The DAC provides a corrected timing input to the CMOS that provides the corrected timing signal to the non-overlap generator, where a delay in the clock path is modified and the signal path is unaltered. | 01-01-2009 |
20090021291 | Adaptive EMI reduction technique for wireline PHYS in multi-port applications - An adaptive electromagnetic interference (EMI) detection and reduction device for multi-port applications is provided. The invention includes at least two physical devices (PHY), where the PHYs transmit data along wire pairs to a register jack (RJ). The transmissions create EMI along the wire pairs, where the transmissions have constructively interfering resonant frequencies having phases and amplitudes. An antenna is disposed proximal to each RJ, where the antennae detect each frequency. A resonating network determines a peak amplitude of each frequency, an envelope detector amplifies each peak amplitude from the resonating network. A discretization circuit converts the amplified peak to discrete amplitude values, where the discretization circuit transmits the discrete amplitude values to a controller. The controller receives the discrete amplitude values from the discretization circuit, and communicates with each PHY, where a phase or frequency of the PHY signal is modified to minimize the constructive interference between the resonant frequencies. | 01-22-2009 |
20090232033 | Hybrid frequency compensation network - Hybrid frequency compensation is provided. Hybrid circuits are used to subtract the transmit signal from the receive signal in a full duplex communication system. Since the hybrid circuit and the main line driver are exposed to different loads, accurate subtraction is difficult to achieve. A frequency dependent network is used to match the loading seen by the driver and the hybrid. The compensation network can be based on active and/or passive components. | 09-17-2009 |
20090290622 | SYSTEM, METHOD AND APPARATUS FOR CROSSTALK CANCELLATION - The present invention effectively cancels echo, near-end crosstalk and far-end crosstalk. A FEXT canceller is placed at the transmitter rather than at the receiver according to an aspect of the invention. In some embodiment, a FEXT canceller can be placed at the receiver only or the combination of both ends. The FEXT canceller is continuously adapted with information sent back from a remote receiver and with data from a neighbor transmitter that causes the crosstalk at the remote receiver. This allows the FEXT canceller to quickly adapt to a change in crosstalk function or conditions with the surrounding environment, for example, aging, temperature, humidity, physical pressure, etc. In some embodiments, an adaptation control signal is sent back from the receiver to the transmitter by using an overhead bit in the frame format. In some embodiments, part of the FEXT canceller is built-in at the remote receiver. | 11-26-2009 |
20100085226 | ANALOG CORRECTION OF A PHASE-MISMATCH IN HIGH-SAMPLE RATE TIME-INTERLEAVED ANALOG-TO-DIGITAL CONVERTERS - A method of phase mismatch correction in high-sample rate time-interleaved analog-to-digital converters (ADC) is provided. An ADC parallel array has an output signal that is processed by a phase-mismatch detector. The detector drives a clock generator control circuit for the ADC array. The clock generator includes a common mode logic (CML) buffer, a CMOS, a non-overlapping generator, a DAC and a decimating low-pass filter. The CML receives a reference clock signal providing source line control (SLC) to the CMOS, the CMOS provides SLC to the DAC that is controlled by the filter which receives a digital control signal from the phase mismatch detector. The DAC provides a corrected timing input to the CMOS that provides the corrected timing signal to the non-overlap generator, where a delay in the clock path is modified and the signal path is unaltered. | 04-08-2010 |
20110193536 | 10GBASE-T TRAINING ALGORITHMS - A method of identifying and correcting each of the changes that may occur with wire pairs between the transmitter and receiver in Ethernet 10GBase-T cabling is provided. The method includes four wire pairs A, B, C and D, a polarity swapping and scrambler state machine that determine if the chosen pair matches the requirements for pair A. A slave Tap state machine generates a rule for correct B, C and D patterns based on a pair chosen as pair A. The cables B, C and D are iteratively swapped to rearrange the pair mapping into the polarity swap state machine, and a deskew state machine identifies the latency difference between the different pairs. If the rules are not satisfied, a new pair A is designated at the swapping state machine and the process is repeated until the rules are satisfied. | 08-11-2011 |
20120155342 | HYBRID FREQUENCY COMPENSATION NETWORK - Hybrid frequency compensation is provided. Hybrid circuits are used to subtract the transmit signal from the receive signal in a full duplex communication system. Since the hybrid circuit and the main line driver are exposed to different loads, accurate subtraction is difficult to achieve. A frequency dependent network is used to match the loading seen by the driver and the hybrid. The compensation network can be based on active and/or passive components. | 06-21-2012 |
20150207718 | OVERLOAD PROTECTION OF A TRANSFORMER LOADED LINE DRIVER - A method of identifying and correcting each of the changes that may occur with wire pairs between the transmitter and receiver in Ethernet 10GBase-T cabling is provided. The method includes four wire pairs A, B, C and D, a polarity swapping and scrambler state machine that determine if the chosen pair matches the requirements for pair A. A slave Tap state machine generates a rule for correct B, C and D patterns based on a pair chosen as pair A. The cables B, C and D are iteratively swapped to rearrange the pair mapping into the polarity swap state machine, and a deskew state machine identifies the latency difference between the different pairs. If the rules are not satisfied, a new pair A is designated at the swapping state machine and the process is repeated until the rules are satisfied. | 07-23-2015 |
Patent application number | Description | Published |
20080240485 | Earphone integrated eartip - An integrated eartip ( | 10-02-2008 |
20100027817 | Controlled leakage omnidirectional electret condenser microphone element - An omnidirectional electret condenser microphone element with improved low frequency background ambient acoustical noise rejection is provided. The omnidirectional electret condenser microphone element includes a plurality of passageways in acoustic series that couple at least one acoustic aperture of the microphone element to an acoustic cavity formed within the microphone element. At least one of said plurality of passageways is of a predefined size that is determined to provide the desired response roll-off within a predefined frequency range. In at least one preferred configuration, the roll-off resulting from the plurality of passageways is greater than 2.0 dB between 300 and 100 Hz. In at least one alternate preferred configuration, the roll-off resulting from the plurality of passageways is greater than 3.0 dB between 300 and 100 Hz. | 02-04-2010 |
20110038491 | Passive sound pressure level limiter - A passive sound pressure level (SPL) limiter is provided that can be used with audio sources of varying drive levels and headsets, earbuds, etc. of varying sensitivity. The SPL limiter includes a control circuit that includes a rectifier and, in most configurations, a step-up transformer. The SPL limiter also includes a limiting circuit that utilizes a transistor to shunt current from the audio source in proportion to a control signal output by the control circuit. The control circuit may further include a low pass filter, for example an RC filter, and one or more fast limit diode paths. The limiting circuit may further include a feedback network to increase the linear behavior of the limiting circuit. | 02-17-2011 |
20110096921 | PORTABLE SPEAKERPHONE WITH PIVOTING MICROPHONE BOOM - A wireless speakerphone with a pivoting microphone boom is provided. The speakerphone communicates via a wireless network to a cellular telephone, cellular telephone adaptor, land-line telephone, land-line telephone adaptor, computer, personal digital assistant, or other device capable of communicating via the wireless network. The microphone contained in the pivoting boom is a directional microphone, the design of the boom being such that the location of minimal microphone sensitivity is always directed towards the speakerphone's speaker. The wireless speakerphone may also include an integral display, thereby allowing various types of system information to be displayed, aid speakerphone/system configuration and provide expanded speakerphone functionality. | 04-28-2011 |
20110158414 | Passive Sound Pressure Level Limiter with Balancing Circuit - A passive sound pressure level (SPL) limiter is provided that can be used with audio sources of varying drive levels and headphones or earphones of varying sensitivity. The SPL limiter includes a control circuit and left and right channel limiting circuits, each of which includes a pair of FETS. The SPL limiter may include a balancing circuit that separates the control signal output by the control circuit into left and right channel control signals. The SPL limiter may also include a microphone, for example integrated into an earpiece cable. | 06-30-2011 |
20120121119 | In-Ear Monitor with Concentric Sound Bore Configuration - A in-ear monitor is provided that is coupleable to an external audio source and that may be configured as a custom fit IEM or configured to accept a removable eartip, the in-ear monitor including at least two drivers and at least two concentric sound delivery tubes that acoustically couple the audio output from each of the drivers to the acoustic output surface of the in-ear monitor. | 05-17-2012 |
Patent application number | Description | Published |
20090137430 | Method for simultaneous removal of asphaltene, and/or paraffin and scale from producing oil wells - A method for cleaning oil wells to increase the flow of oil thereof by use of a unique aqueous cleaning emulsion comprising of water, hydrocarbon solvent, and detergent. This one step method provides for the simultaneously cleaning/removal of asphaltene and/or paraffin and scale. This method can be used alone or with the assistance of a wash tool which is a combination pressure and surge wash tool having a nipple assembly. A by-pass port is coupled to the nipple assembly and a diverter cup is coupled to the by-pass port. A plurality of pressure wash cups are positioned on the tool. A pressure wash port is located between the plurality of pressure wash cups and a pump shoe assembly is coupled to a bottom pressure wash cup. | 05-28-2009 |
20120125624 | Ultra-pumps systems - This invention provides a positive displacement gas operated pump and pumping system for pumping fluids such as hydrocarbons/oil as well as solids that may be suspended in such fluids. More specifically, the invention relates to a method and apparatus for the recovery of hydrocarbons/oil from underground water tables and/or where water flooding has previously been used to further extract hydrocarbons/oil from underground areas, but economics prevent further recovery from such areas and/or wells. | 05-24-2012 |
20120234548 | Oil well cleaning compositions - A method for cleaning oil wells to increase the flow of oil thereof by use of a unique cleaning emulsion comprising of water, hydrocarbon solvent, terpene hydrocarbon material, demulsifier, detergent, and optionally an acid. This one step method provides for the simultaneously cleaning/removal of asphaltene and/or paraffin and scale at a wide range of temperatures. This method can be used alone or with the assistance of a wash tool which is a combination pressure and surge wash tool having a nipple assembly, or a hydro self-rotating nozzle wash tool. | 09-20-2012 |
20150315876 | OIL WELL CLEANING COMPOSITIONS - A method for cleaning oil wells to increase the flow of oil thereof by use of a unique cleaning emulsion comprising of water, hydrocarbon solvent, terpene hydrocarbon material, demulsifier, detergent, and optionally an acid. This one step method provides for the simultaneously cleaning/removal of asphaltene and/or paraffin and scale at a wide range of temperatures. This method can be used alone or with the assistance of a wash tool which is a combination pressure and surge wash tool having a nipple assembly, or a hydro self-rotating nozzle wash tool. | 11-05-2015 |
Patent application number | Description | Published |
20090052082 | AIR BEARING AT OPPOSITE SIDE OF LINEAR TAPE TO SUPPORT TAPE INTO CONTACT WITH HEAD SLIDER - A tape head and bearing assembly comprises an air bearing structure having a tape bearing surface with a plurality of openings therein configured to provide a continuous air bearing of pressurized air to support a linear tape moving along a path, the air bearing being provided on only one side of the linear tape. A head slider assembly, such as an HDD-type assembly, is positioned at the opposite side of the linear tape from the tape bearing surface and is configured to be in contact with the linear tape. | 02-26-2009 |
20090052087 | AIR BEARING AT OPPOSITE SIDE OF LINEAR TAPE TO SUPPORT TAPE INTO CONTACT WITH HEAD SLIDER - A tape head and bearing assembly comprises an air bearing structure having a tape bearing surface with a plurality of openings therein configured to provide a continuous air bearing of pressurized air to support a linear tape moving along a path, the air bearing being provided on only one side of the linear tape. A head slider assembly, such as an HDD-type assembly, is positioned at the opposite side of the linear tape from the tape bearing surface and is configured to be in contact with the linear tape. | 02-26-2009 |
20090201608 | MAGNETICALLY BIASED TILTING ROLLER BEARING TAPE GUIDANCE - In one embodiment, a tape movement constraint for a tape drive system, comprises a tiltable tape roller bearing having a grooved surface adapted to contact and engage a surface of the tape as the roller barrel rotates, and an actuator adapted to pivot the roller bearing surface when the actuator is actuated, to control the lateral position of a tape. In operation, in one embodiment, a roller barrel of the tiltable roller bearing is biased in a first position on a pivot axis, using magnetic attraction between a movable magnet and a return path structure of magnetically permeable material. The roller barrel is pivoted on the pivot axis by conducting current through a fixed coil to generate a magnetic field which is conducted by the return path structure to interact with the magnetic field of the magnet. At least a portion of any air bearing between the moving tape and the barrel surface is quenched using grooves formed in the barrel surface. The lateral position of the moving tape is sensed and the rotating roller barrel is tilted in response to the sensed lateral position of the moving tape to control the lateral position of the moving tape. Other embodiments are described and claimed. | 08-13-2009 |
20090201609 | FRICTION ENGAGED TILTING ROLLER BEARING TAPE GUIDANCE - In one embodiment, a tape movement constraint for a tape drive system, comprises a tiltable tape roller bearing having a grooved surface adapted to contact and engage a surface of the tape as the roller barrel rotates, and an actuator adapted to pivot the roller bearing surface when the actuator is actuated, to control the lateral position of a tape. In operation, in one embodiment, the roller barrel of the roller bearing is rotated by engaging a surface of the tape roller barrel with a longitudinally moving magnetic tape. At least a portion of any air bearing between the moving tape and the barrel surface is quenched using grooves formed in the barrel surface. The lateral position of the moving tape is sensed and the rotating roller barrel is tilted in response to the sensed lateral position of the moving tape to control the lateral position of the moving tape. Other embodiments are described and claimed. | 08-13-2009 |
20120281307 | FRICTION ENGAGED TILTING ROLLER BEARING TAPE GUIDANCE - In one embodiment, a tape movement constraint comprises a tiltable tape roller bearing having a grooved surface adapted to contact and engage a surface of the tape as the roller barrel rotates. An actuator adapted to pivot the roller bearing surface controls the lateral position of a tape. In operation, in one embodiment, the roller barrel of the roller bearing is rotated by engaging a surface of the tape roller barrel with a longitudinally moving magnetic tape. At least a portion of any air bearing between the moving tape and the barrel surface is quenched using grooves formed in the barrel surface. The lateral position of the moving tape is sensed and the rotating roller barrel is tilted in response to the sensed lateral position of the moving tape to control the lateral position of the moving tape. Other embodiments are described and claimed. | 11-08-2012 |
20120281308 | FRICTION ENGAGED TILTING ROLLER BEARING TAPE GUIDANCE - In one embodiment, a tape movement constraint comprises a tiltable tape roller bearing having a grooved surface adapted to contact and engage a surface of the tape as the roller barrel rotates. An actuator adapted to pivot the roller bearing surface controls the lateral position of a tape. In operation, in one embodiment, the roller barrel of the roller bearing is rotated by engaging a surface of the tape roller barrel with a longitudinally moving magnetic tape. At least a portion of any air bearing between the moving tape and the barrel surface is quenched using grooves formed in the barrel surface. The lateral position of the moving tape is sensed and the rotating roller barrel is tilted in response to the sensed lateral position of the moving tape to control the lateral position of the moving tape. Other embodiments are described and claimed. | 11-08-2012 |
20130021692 | MAGNETICALLY BIASED TILTING ROLLER BEARING TAPE GUIDANCE - A tape movement constraint for a tape drive system, comprises a tiltable tape roller bearing having a grooved surface adapted to contact and engage a surface of the tape as the roller barrel rotates, and an actuator adapted to pivot the roller bearing surface when the actuator is actuated, to control the lateral position of a tape. In operation, in one embodiment, a roller barrel of the tiltable roller bearing is biased in a first position on a pivot axis, using magnetic attraction between a movable magnet and a return path structure of magnetically permeable material. The roller barrel is pivoted on the pivot axis by conducting current through a fixed coil to generate a magnetic field which is conducted by the return path structure to interact with the magnetic field of the magnet. Other embodiments are described and claimed. | 01-24-2013 |
20130021693 | MAGNETICALLY BIASED TILTING ROLLER BEARING TAPE GUIDANCE - A tape movement constraint for a tape drive system, comprises a tiltable tape roller bearing having a grooved surface adapted to contact and engage a surface of the tape as the roller barrel rotates, and an actuator adapted to pivot the roller bearing surface when the actuator is actuated, to control the lateral position of a tape. In operation, in one embodiment, a roller barrel of the tiltable roller bearing is biased in a first position on a pivot axis, using magnetic attraction between a movable magnet and a return path structure of magnetically permeable material. The roller barrel is pivoted on the pivot axis by conducting current through a fixed coil to generate a magnetic field which is conducted by the return path structure to interact with the magnetic field of the magnet. Other embodiments are described and claimed. | 01-24-2013 |