Patents Represented by Law Firm Reid & Priest LLP
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Patent number: 6870928Abstract: A line interface couples signals between a data transceiver and a transmission line having a load impedance Z. The line interface includes a transformer, a driver circuit for supplying a transmit signal from the data transceiver to the transformer, and a receiver circuit for receiving a receive signal from the transformer. The transformer includes a first port coupled to the transmission line, a second port coupled to the driver circuit, a third port coupled to the receiver circuit, a first winding part having a turns ratio of 1: n, where n>1, for coupling the transmit signal from the second port to the first port, and a second winding part having a turns ratio of 1: m, where m<n, for coupling the receive signal from the first port to the third port.Type: GrantFiled: May 25, 2001Date of Patent: March 22, 2005Assignee: LSI Logic CorporationInventors: Cormac S. Conroy, Samuel W. Sheng, Ara Bicakci, John DeCelles, Sang-Soo Lee
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Patent number: 6871224Abstract: A method for conveying data communications network management information to an umbrella management system whereby network management information events are published on an information bus and received at a subscribing monitor interface located on the information bus. The monitor interface then converts the network management information events into umbrella management system-useable information and communicates the umbrella management useable information to the umbrella management system. In this manner, the umbrella management system is able to import valuable information pertaining to the devices and services that comprise the overall network. The monitor interface includes an adapter located on the information bus that subscribes to network management information events, a converter that formats the network management information events into data useable by the umbrella management system, and a forwarder that communicates the umbrella management system-useable data to the umbrella management system.Type: GrantFiled: January 4, 1999Date of Patent: March 22, 2005Assignee: Cisco Technology, Inc.Inventors: Jie Chu, Sampath Kumar Sthothra Bhasham, Aravind Sitaraman, Leslie Alan Thomas
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Patent number: 6870318Abstract: A klystron tube for amplifying signals at microwave radio frequencies utilizes an electron source for emitting electrons through a field focused by a high energy magnet in the RF section of the tube. After the electrons have passed through the active area of the tube, the electrons strike the collector which, in this case, is a multistage depressed collector. The multistages of the depressed collector are connected to high energy voltage sources of different potentials. The klystron tube with the multistage depressed collector is uniquely used here for the first time in a ground based satellite or terrestrial communications system.Type: GrantFiled: March 12, 2003Date of Patent: March 22, 2005Assignee: Communications and Power Industries, SATCOM divisionInventors: Michael J. Cascone, Eric Oiesen, Edward L. Wright, Richard J. Dobbs
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Patent number: 6870828Abstract: A method and apparatus are provided for recognizing and accessing telephone numbers from a Web page. In the preferred embodiment of the invention, an HTML code of an accessed Web page is parsed and converted. A parsing algorithm applied to the text in the HTML document pattern-recognizes telephone numbers. Coding is added to iconify the recognized telephone numbers. The user's Internet-capable telephone displays the iconified telephone numbers. All previously-active links and graphical displays supported by the Internet-capable telephone are maintained in this display. To call a phone number, the user selects the icon, and the Internet-capable phone determines how to initiate the call. For a two-line phone, the Internet-capable telephone initiates a telephone call to the selected number. For a one-line phone, the Internet-capable telephone determines whether the line is available for a call. If the line is not currently being used, the Internet-capable telephone initiates a voice call to the selected number.Type: GrantFiled: June 3, 1997Date of Patent: March 22, 2005Assignee: Cisco Technology, Inc.Inventor: Joseph Giordano, III
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Patent number: 6870812Abstract: A method and apparatus for implementing Quality of Service (QoS) policy in a data communications network. A content addressable memory (CAM) contains flow information for each active flow of packets passing through a given node of a data communications network. The CAM has associated with each entry a packet counter, a byte counter, a token bucket, and a contract value. Each flow is assigned one of a plurality of output queues and optionally at least one output threshold value. An access control list CAM (ACLCAM) contains masked flow information. The ACLCAM provides an index to internal token bucket counters and preconfigured contract values of an aggregate flow table which becomes affected by the packet statistics. In this way, flows are aggregated for assignment of output queues and thresholds, possible dropping, and possible modification of packets.Type: GrantFiled: March 18, 2003Date of Patent: March 22, 2005Assignee: Cisco Technology, Inc.Inventors: Raymond J. Kloth, Thomas J. Edsall, Michael Fine, Dinesh G. Dutt
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Patent number: 6867574Abstract: The present invention, generally speaking, provides a power-efficient method of driving a switch mode power supply at higher frequencies than those typically attainable in the prior art. In an exemplary embodiment, driver transistors exhibit gate capacitance, which is exploited by charging the gate capacitance using a pulse signal and thereafter allowing the gate capacitance to discharge. With the gate capacitance charged, the driver transistor remains on for the desired period of time even without a drive signal being continuously applied, thus conserving power. In essence, the gate capacitance is exploited in the manner of a memory cell. Furthermore, at higher-frequency operation, instead of the gate capacitance being fully charged, leading to increased turn-off time, the gate capacitance is only partially charged, allowing for quicker turn around. The envelope-following capability of the switch mode power supply, in telecommunications applications, is therefore increased.Type: GrantFiled: November 21, 2001Date of Patent: March 15, 2005Assignee: Tropian, Inc.Inventor: Bojan Silic
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Patent number: 6868065Abstract: A method and apparatus for implementing Quality of Service (QoS) policy in a data communications network. An active flow content addressable memory (CAM) contains entries of flow information for each active flow of packets passing through a given node of the data communications network. The CAM has associated with each entry a packet counter, a byte counter, a token bucket, and a contract value. Each flow is assigned one of a plurality of output queues and optionally at least one output threshold value. A token bucket algorithm is employed on each flow to determine whether packets from that flow exceed the contract value. Such packets may be dropped or optimally modified to reflect an alternate output queue and/or alternate threshold before being sent to the selected output queue for transmission from the node.Type: GrantFiled: March 18, 2003Date of Patent: March 15, 2005Assignee: Cisco Technology, Inc.Inventors: Raymond J. Kloth, Thomas J. Edsall, Michael Fine, Dinesh G. Dutt
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Patent number: 6864668Abstract: The present invention, generally speaking, provides for high-efficiency power control of a high-efficiency (e.g., hard-limiting or switch-mode) power amplifier. In one embodiment, the invention exploits the recognition that, for a constant-resistance circuit, power is equal to the square of the voltage across the circuit divided by the resistance of the circuit. In the case of certain switch mode amplifiers, such as Class E and Class F amplifiers, as well as saturated linear amplifiers, the amplifier may reasonably be regarded as having a constant resistance with varying power supply. In an exemplary embodiment, the supply voltage is controlled using a combination of two stages, a switch-mode converter stage that accomplishes gross power level control and a subsequent linear regulator stage that accomplishes more precise power envelope control, e.g., burst control.Type: GrantFiled: February 9, 1999Date of Patent: March 8, 2005Assignee: Tropian, Inc.Inventors: Earl McCune, Wendell Sander
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Patent number: 6865348Abstract: A system which improves wavelength tolerance, compensates dispersion in a simple way, reduces limitation of the fiber input power is disclosed. The operation includes receiving a clock signal from a system clock source; modulating a single mode optical signal based on the clock signal and generating an optical pulse signal having two longitudinal modes, the frequency interval thereof being n×B, n being a natural number and B being a transmission speed; generating a partial response signal by converting a binary NRZ signal from a digital signal source in synchronism with the system clock source; and modulating the optical pulse signal based on the partial response signal, and outputting a binary RZ modulated signal. The binary RZ modulated signal is input into a receiver, where two partial response components in the optical spectra of the input signal are divided, and one or both of the components are received.Type: GrantFiled: February 28, 2001Date of Patent: March 8, 2005Assignee: Nippon Telegraph and Telephone CorporationInventors: Yutaka Miyamoto, Akira Hirano, Kazushige Yonenaga, Kenji Sato, Hiromu Toba, Akihiko Matsuura
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Patent number: 6863680Abstract: A system for delivering hemostasis promoting material of the present invention allows the hemostasis promoting material to be delivered to a blood vessel puncture site by fluid pressure. The system allows the hemostasis promoting material to be delivered through an introducer sheath which is already in place within a tissue tract. This system includes a controlled tip which is insertable through the introducer sheath to locate and occlude the blood vessel puncture site and a hydration chamber for receiving and delivering the hemostasis promoting material to the blood vessel puncture site. The system accurately locates the blood vessel wall at a puncture site and for properly placing a hemostasis plug over the puncture site.Type: GrantFiled: November 8, 2001Date of Patent: March 8, 2005Assignee: Sub-Q, Inc.Inventor: Mark Ashby
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Patent number: 6865742Abstract: A method for dynamic linking of software modules includes detecting an event during the execution of a computer program that resides in a first memory, ascertaining whether there is at least one required property associated with the event if the event is detected, determining a property identifier for the at least one required property and loading at least one code module from a second memory into the first memory based upon a property identifier configured with the executable code module. According to one aspect, the loading includes loading the at least one executable code module into the first memory if it is not in the first memory. According to another aspect, the at least one executable code module includes at least one dynamic link library (DLL). According to another aspect, the event includes the addition of a hardware device and the required property includes a hardware device PROM identifier.Type: GrantFiled: August 16, 2001Date of Patent: March 8, 2005Assignee: Cisco Technology, Inc.Inventors: Aniruddha Khare, Karunakar Reddy Parne, Michael Boe
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Patent number: 6862296Abstract: A receive deserializer circuit which frames parallel data utilizes a skip-bit technique for aligning a predefined data reference pattern with a word clock. The receive deserializer circuit includes a sampling flip flop which receives serial data including a data reference pattern. The sampling flip flop samples and retimes the serial data to a recovered clock. A demultiplexer then deserializes the retimed serial data into a parallel data word which is timed to a word clock from a clock generator. A comparator makes comparisons of the parallel data word with a preset data reference pattern until a match results. A logic controller interprets whether the output of the comparator is a match and generates a shift pulse following each comparison which does not result in a match. The clock generator divides the recovered clock into eight phase clocks. One of the phase clocks is a word clock.Type: GrantFiled: December 21, 1999Date of Patent: March 1, 2005Assignee: LSI Logic CorporationInventor: Chintan Desai
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Patent number: 6862010Abstract: A method controls voltage of a matrix structure electron source. The method includes setting the emission of electrons by applying potentials on the selected line and column(s) at a value allowing this emission, maintaining these potentials at their value throughout the duration of the emission, carrying out a sampling and analog memorisation of the emission current of each pixel of the column(s) at the start of the emission time, and using another current supplied by a current generator that is proportional to the value of the measured emission current circulating the column(s); and measuring the quantity of charge delivered, during all or part of the remaining line time, by each current generator, and when this quantity reaches a required value, commuting the potential of the column associated to the current generator to a value that ensures the blocking of the emission of electrons of the pixel of this column.Type: GrantFiled: November 12, 2002Date of Patent: March 1, 2005Assignee: Commissariat a l'Energie AtomiqueInventors: Pierre Nicolas, Denis Sarrasin
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Patent number: 6861900Abstract: A method and apparatus are provided that performs timing acquisition for multiple radio terminals. According to one aspect of the present invention the invention includes receiving a sequence of symbols modulated onto a carrier frequency over a channel and demodulating the symbols using a clock frequency. The invention further includes determining a frequency offset of the received symbols with respect to the clock frequency and applying the determined frequency offset to adjust the clock frequency.Type: GrantFiled: December 27, 2001Date of Patent: March 1, 2005Assignee: Proxim CorporationInventor: Peter Smidth
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Patent number: 6859122Abstract: Magnetic actuator having a closed magnetic circuit (26) capable of guiding a magnetic flux. The magnetic circuit (26) comprises a fixed magnetic part (30, 31, 32) with a yoke (30) and a mobile part (22), magnetically connected to each other and also at least one main air gap (29) delimited by at least one portion (28) of the mobile part (22) and by the yoke (30). In the main air gap (29), the flux is closed by being set up approximately transverse to the mobile part (22). The fixed part (30, 31, 32) also comprises flux recuperation means (40) that contribute with the mobile part (22) to delimiting an auxiliary air gap (38) in which the magnetic flux is set up laterally to the mobile part (22). The flux is contained on each side of the main air gap (29), on one side by the yoke (30), and on the other side jointly by the mobile part (22) and the flux recuperation means (40) through the part (28) contributing to delimiting the main air gap (29).Type: GrantFiled: June 24, 2002Date of Patent: February 22, 2005Assignee: Commissariat a l'Energie AtomiqueInventors: Claire Divoux, Pierre Gaud, Jérôme Delamare
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Patent number: 6857823Abstract: A soil reinforced wall earthen retaining wall for an earthen formation is provided by embedding planar soil reinforcing mats in the formation at vertically spaced intervals and securing face mats between the soil reinforcing mats. The face mats comprise welded wire gridworks having upper and lower portions engaged behind wires of the soil reinforcing mats which extend across the face of the formation. In one embodiment the face mats comprise paired separate face mat elements secured one above the other in edge-to-edge relationship and intermediate stabilizing anchors are embedded in the formation to hold the face mat elements in vertical alignment. In the paired face mat element embodiment, the lifts of soil between successive soil reinforcing mats are compacted in stages corresponding to the depth of the face mat elements.Type: GrantFiled: November 28, 2003Date of Patent: February 22, 2005Inventors: William K. Hilfiker, Harold K. Hilfiker
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Patent number: 6857674Abstract: The articulated device (10) that is intended for filtering vibrational movements from a vehicle floor (12) and transmitted to a passenger support (19), is installed between said floor (12) and said support (19), and comprises two mounts (20) fixed to the vehicle floor (12), one mobile central part (22) articulated to the support (19), two connecting rods (24), each articulated to one of the mounts (20) and the central part (22). These five elements (20, 22, 24) are articulated to each other and to the support (19) by rotation joints, the rotations operating about five rotation axes (32, 34, 36) that are parallel to each other. The system (100) for filtering vibrational movements transmitted to a passenger support (19) comprises at least three filtering devices (10), such that the support (19) moves in translation along a plane curved trajectory. To be used for an aircraft seat.Type: GrantFiled: September 3, 2003Date of Patent: February 22, 2005Assignee: Airbus FranceInventor: Philippe Chareyre
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Patent number: 6859609Abstract: A method and apparatus for recording digital video and/or audio signals include input audio and video interfaces, a memory, a video frame selector, and output audio and video interfaces. In an alternate embodiment, the method and apparatus include input audio and video interfaces, a first memory, a second memory for playback, and output audio and video interfaces. Another embodiment further includes a memory optimizer for maximizing a chosen criterion such as audio duration, image capture frequency or pixel resolution.Type: GrantFiled: February 11, 2000Date of Patent: February 22, 2005Assignee: LSI Logic CorporationInventor: Daniel Watkins
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Patent number: 6856387Abstract: A device for determining the intensity and phase of a coherent light beam (F) in a cross-section of the beam comprises a calculator (1), a camera (2), a detector plane (3), an optical sampling element (4), and two mirrors (5, 6). The device measures the intensity Ii (i=1, . . . N) of the beam in N planes (N?3). The camera (2) is equipped with a single detector plane (3). The optical sampling element (4) and the two mirrors (5, 6) assemble N distinct elementary beams, generated based on the coherent light beam (F), on N distinct zones of the single detector plane (3).Type: GrantFiled: March 31, 2003Date of Patent: February 15, 2005Assignee: Commissariat a l'Energie AtomiqueInventor: Laurent Bruel
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Patent number: RE38713Abstract: A hair styling apparatus includes a pair of mating surfaces which engage one another and a handle which guides them into engagement at the manual control of a user. Hair to be styled is placed between the engaged surfaces. A plurality of comb-like pins extend from one of the surfaces and engage holes in the other of the surfaces. In another aspect of the invention, one or both surfaces may incorporate a source of dry heat. In another aspect of the invention, a source of steam is provided together with a trigger for discharging the steam through holes in at least one of the surfaces as an aid to hair styling.Type: GrantFiled: September 6, 2002Date of Patent: March 22, 2005Inventor: Masood Habibi