Abstract: This invention relates to a delay locked loop comprising a line of delay cells (R1, R2, . . . , Rn) mounted in series, the delay signal output by the loop being output from the output of one of the delay cells, the input of the delay cells line being connected to a first input of a phase/frequency detector (1), for which a second input is connected to an output from the delay cell. The loop comprises control means (4) capable of modifying the output from the delay cell connected to the second input of the phase/frequency detector (1), at the rate of a clock signal (H) when stimulated by control information (I). The invention is particularly applicable to generating and measuring delays and for frequency synthesis in mobile applications.

Abstract: This is a processing circuit for a spectrometry chain including a particle radiation detector (21), including a charge preamplifier stage (20) receiving a current (I1) from the detector, representative of the amount of charges emitted by a particle which has interacted with the detector, and an integrator stage (26). A differentiator stage (25) is connected between the charge preamplifier stage (20) and the integrator stage (26), the differentiator stage (25) receiving a signal (V1) from the charge preamplifier stage (20) and delivering to the integrator stage (26), a signal (V2), image of the detector current (I1), the integrator stage (26) delivering, an image (V3) of the amount of charges emitted by a particle which has interacted with the detector. Application notably to the high energy single channel probes.

Abstract: A routing system utilizes a layer 2 switch interconnecting several routers to intelligently forward multicast packets throughout an internet exchange carrying multicast content. The layer 2 switch performs protocol snooping to extract a lookup key that is based on network layer protocol information. The lookup key is uniquely formulated to support either shared or explicit source distribution trees. The lookup key is used to query a forwarding memory that returns an outgoing port index. The outgoing port index points to one or more outgoing ports that are eligible to receive the multicast packet. The outgoing ports are also connected to the neighboring device(s) that are designated to receive the multicast packet. The routing system also supports real time maintenance and updating of the forwarding memory based on the periodic exchange of control messages. The routing system is configured to support PIM routers operating in PIM SM or PIM SSM modes.

Abstract: A method for preventing denial of service attacks against Hypertext Transfer Protocol (HTTP) servers includes receiving a HTTP request from a subscriber using a first communication network coupled to at least one other communication network, receiving a profile for the subscriber, filtering the request to determine whether the subscriber is authorized to make the request based upon the profile and forwarding the request to the other communication network when the subscriber is authorized to make the request. An apparatus capable of preventing denial of service attacks against HTTP servers includes a profile request generator capable of generating a profile request based upon a HTTP request received from a subscriber using a first communication network, a filter capable of determining whether the request is authorized based upon the requested profile and an authorizer capable of allowing the request to be forwarded on at least one other communication network coupled to the first communication network.

Abstract: A method and apparatus for providing thermal dissipation from a PC card is disclosed. For one embodiment of the invention, an extension portion, having a heat sink implemented thereon, is provided for a PC card. The extension portion extends beyond the PC card slot allowing thermal dissipation from the card due to air flow over the heat sink. For one embodiment of the invention, heat producing components of the PC card are identified and a thermally conductive path is provided from the components to the extension portion of the PC card.

Abstract: Analog-valued floating-gate transistors are used as trimmable circuit components for modifying and/or controlling the gain, phase, offset, frequency response, current consumption, and/or transfer function of signal pathways in parallel and/or serial processing circuits in radio frequency, analog, or mixed-signal integrated circuits.

Abstract: Rewriteable electronic fuses include latches and/or logic gates coupled to one or more nonvolatile memory elements. The nonvolatile memory elements are configured to be programmed to memory values capable of causing associated electronic circuits to settle to predetermined states as power-up or reset signals are applied to the fuses. Although not required, the nonvolatile memory elements used in the rewriteable electronic fuses may comprise floating-gate transistors. An amount of charge stored on the floating gate of a given floating-gate transistor determines the memory value and, consequently, the state to which a fuse settles upon power-up or reset of the fuse.

Abstract: Corner pumping method and gain module for high power slab laser are disclosed. In one embodiment, said method comprises directing a pump light from one or more pump light sources each consisting of a high power diode array and its coupling system into a laser slab through prior cut slab corners of said laser slab without restriction to the incident angle or the polarization state of the pump light, wherein said laser slab includes an undoped circumambient portion and one or more doped central portions; propagating said pump light within the laser slab by total internal reflection (TIR), wherein said pump light firstly pass said undoped circumambient portion, secondly pass said doped central portion, thirdly pass said undoped circumambient portion again, and fourthly take inner reflection at the surface of said undoped circumambient portion, and by repeating these steps, achieve multi-pass absorption; and substantially absorbing the pump light during propagating.

Abstract: A self-guiding cover assembly for a vacuum electron device (VED) enclosure has a breach lock mechanism for seating the VED into the VED enclosure having a base. The breach lock mechanism has a plurality of guide elements mounted on the VED, a first sleeve mounted on the base and configured to removably receive the VED, and a second sleeve mounted on the base and configured to removably receive the first sleeve and rotate around the first sleeve. The first sleeve has a plurality of vertical slots configured to mate with the plurality of guide elements. The second sleeve has tracks configured to mate with the guide elements. A rotation of the second sleeve pulls the VED into the base for seating the VED.

Abstract: A method for maintaining Quality of Service for communication network subscribers regardless of their log-on location is disclosed. For one embodiment the communications network has a first access point having a first router and a local memory containing at least one user profile containing a subscriber's pool identifier, and a second access point having a second router configured to provide a forwarding rate based on a source address from each of said packets. A service type for a subscriber is defined. A pool identifier corresponding to a service level agreement is assigned to the subscriber. If the subscriber attempts to log-on to the second access point, the subscriber's pool identifier is obtained from a global memory available to the second access point. The pool identifier is used to select a source address. A packet sent by the subscriber is forwarded using the second router, each packet containing the source address.

Abstract: The invention relates to a process for checking the deterministic behavior of a packet switching network comprising subscriber stations connected to each other through at least one switch, this behavior being said to be deterministic in the sense that every packet sent on the network from a source subscriber station joins the destination subscriber station(s) within a limited time, characterized in that the following relation is satisfied for each output port on each switch on the network: ? ? [ 1 + int ? ( ( Jitter ? ? In ) i ? i + max ? ? Latency BAGi ) ] * ( max ? ? ? frame ? ? duration ) ? max ? ? latency i = number ? ? of ? ? virtual ? ? links ? ? passing ? ? through ? ? the ? ? buffer in which: the max latency value is the maximum residence time in the output buffer of a switch, this value may be different for each switch in the network.

Abstract: A method for supporting dynamic configuration changes comprises receiving a message from a current root bridge, comparing a bridge media access control (MAC) address of a receiving port to a bridge MAC address of the received message, if the bridge MAC addresses are not the same, then comparing a current priority value with a previous priority value of the current root bridge, determining if the receiving port is a qualified root port, and if the port is a qualified root port, then returning a superior designated message to execute an RSTP calculation.

Abstract: ADC accuracy is increased by 1 bit by interpolation of comparator outputs in a comparator array, thereby increasing accuracy without significantly increasing power consumption and size. Specifically, an analog-to-digital converter includes a binary converter and a comparator array, which comprises a plurality of comparator blocks, each block having a primary comparator and an intepolating comparator. The intepolating comparator compares an output signal from the primary comparator with a negative output signal from a primary comparator of another block of the plurality of blocks to generate a least significant bit. The binary converter, which is coupled to the array, converts array output to binary code.

Abstract: A motor having a fluid dynamic bearing generating a fluid dynamic pressure by forming an oil gap between a rotor and a stator such that oil is accommodated in the oil gap, and a first and second air dynamic bearing generating an air dynamic pressure by forming an air gap between the rotor and the stator such that air is introduced into the air gap. The fluid dynamic bearing generates a fluid dynamic pressure by forming an oil gap between an axial hole of a sleeve and a shaft such that oil is accommodated in the oil gap, and the first and second air dynamic bearings generate an air dynamic pressure by forming an air gap between an inner circumferential surface of a hub and an outer circumferential surface of the sleeve and between the inner circumferential surface of the hub and an upper plane surface of the sleeve, respectively.

Abstract: An accessory for an electronic device, such as a mobile phone, includes a mounting portion and a coupling portion. The mounting portion is adapted for mounting to an antenna region of the electronic device. The coupling portion is coupled to the mounting portion and adapted for detachable coupling to an object to thereby couple the electronic device to the object.

Abstract: An inline power controller includes at least one analog interface circuit module (AICM) having a first analog input node for receiving an inline power port voltage, a second analog input node for receiving an inline power port current, a first analog output for effecting an inline power port voltage, a second analog output for effecting an inline power port current, and a digital interface converting the received inline power port voltage to a digital value, the inline power port current to a digital value, a first digital value to the first analog output and a second digital value to the second analog output. A digital serial bus (DSB) couples the AICM to a digital controller via digital serial bus interfaces (DSBIs).

Abstract: An apparatus comprises a signal source, a driver and an electro-mechanical transducer. The signal source is configured to output a haptic feedback signal. The driver is configured to receive the haptic feedback signal and output a drive signal. The electro-mechanical transducer is configured to receive the drive signal. The electro-mechanical transducer is configured to have a set of operational modes. Each operational mode from the set of operational modes has at least one resonant mode from a set of resonant modes.

Abstract: A biasing system for use with a multi-stage depressed collector of a high power amplifier includes one or more adjustable power sources. A power controller provides control signals to the power sources depending on the operational RF power level. For low power applications, biasing of collector electrodes is reduced such that savings in energy costs are realized, and operational temperature and wear are reduced. The control signals are based on values stored in a look-up table. For multiple depressed electrodes, biasing can be controlled in tandem or independently.

Abstract: The present invention relates to an intermediate suction support. The support has at least one suction surface (62) intended to receive a first face of at least one substrate comprising an embrittled layer, a film thus being defined between the first face of the substrate and the embrittled layer, the suction surface (62) of the intermediate support being the face with at least one suction element (63) comprising suction means provided so that, when the embrittled layer is submitted to a treatment leading to the separation of the film from the rest of the substrate, the film can be recuperated. Application to the production of a thin film structure.

Abstract: A magneto-optical recording medium has a recording layer and a reflective layer on a substrate. The recording layer has a layered structure in which at least one spinel ferrite (or rutile-type oxide or hematite) layer and at least one garnet ferrite layer are piled together. It is preferable that the layered structure is formed on tracks where data are recorded. A manufacturing method comprises the steps of heat treatment in the range of 500-700° C., preferably 600-630° C., after the formation of the recording layer. In the magneto-optical recording and playback device to record and play back data, the wavelength of light for recording data is different from that for reading data, which is preferable for a magneto-optical recording medium comprising a garnet ferrite layer.