Abstract: Sense amplifiers for use in connection with microelectromechanical system (MEMS) gyroscopes are described. The sense amplifiers may be configured to change the level of a gyroscope signal, i.e., the signal produced by a gyroscope in response to angular motion, to a level suitable for processing circuitry arranged to infer the angular velocity. The sense amplifier may further provide a DC discharge path allowing for discharge of the DC component of the output signal. The DC discharge path may include an anti-aliasing filter and a resistive circuit. The anti-aliasing filter may filter the output signal to maintain the resistive circuit in the linear region. The anti-aliasing filter may be designed with a frequency response such that discrete frequency sub-bands are blocked or at least attenuated. The frequency sub-bands may be tuned to substantially match the gyroscope's resonant frequency and its integer multiples.

Abstract: Embodiments of the present invention are directed to a method, system and apparatus for causing a communication client to join a media-over-packet communication session. The method comprises receiving from a communication client an indication indicative of a desire of the communication client to establish a communication session, the communication client being registered in association with a user account. The method further comprises determining if there exists at least one active communication session established with at least one other communication client registered in association with the user account. Responsive to determining that there does exist at least one active communication session, the method further comprises causing the communication client to join at least one of the at least one active communication session.

Abstract: Systems and techniques for optimizing an integrated circuit (IC) design are described. Some embodiments can transform a circuit design into a logically-equivalent circuit design by: (1) creating a Wire-Length-Area Model (WLAM) for a portion of a first circuit design, (2) creating a second circuit design by replacing the portion of the first circuit design by the WLAM, (3) placing and routing the second circuit design to obtain a placed-and-routed second circuit design, and (4) creating a third circuit design that is logically-equivalent to the first circuit design based on the placed-and-routed second circuit design.

Abstract: An over-ear headphone system can provide optimal comfort, reliability, and fitment with a headband attached to at least one ear cup. The headband may have a first member and a second member that each extends from a rigid coupler. The rigid coupler can be configured to continuously extend about the periphery of the ear cup so that a gimbal connects the rigid coupler and the ear cup at a lateral position on the ear cup.

Abstract: A method of optimizing a netlist for a circuit comprising identifying a logic tree with a single output and a plurality of interchangeable inputs, and calculate the optimal permutation of the plurality of inputs. The method further comprising modify the netlist based on the optimal permutation, and optimizing the modified netlist.

Abstract: Methods and systems to notify a party at a given premise when a particular event, such as a fire, an intrusion, an emergency or another event, occurs at another premise. One method comprises: obtaining an indication of a particular event at a first end-user premise, the first end-user premise including first end-user equipment connected to a communications network via a first communication link; establishing a wireless communication link between the first end-user equipment and second end-user equipment at a second end-user premise, the second end-user equipment being connected to the communications network via a second communication link; and causing the first end-user equipment to transmit information to the second end-user equipment via the wireless communication link to instruct the second end-user equipment to issue a notification concerning the particular event. Also provided are apparatus and computer-readable media containing a program element executable by a computing system to perform such a method.

Abstract: A microelectromechanical system (MEMS) accelerometer is described. The MEMS accelerometer is arranged to limit distortions in the detection signal caused by displacement of the anchor(s) connecting the MEMS accelerometer to the underlying substrate. The MEMS accelerometer may include masses arranged to move in opposite directions in response to an acceleration of the MEMS accelerometer, and to move in the same direction in response to displacement of the anchor(s). The masses may, for example, be hingedly coupled to a beam in a teeter-totter configuration. Motion of the masses in response to acceleration and anchor displacement may be detected using capacitive sensors.

Abstract: Various embodiments mitigate the risk of frequency-lock in systems having multiple resonators by dynamically changing the frequency at which at least one of the resonators is driven. More particularly, the drive frequency of at least one of the resonators is changed often enough that the multiple resonators do not have time to achieve frequency lock. Changes in the oscillation of the resonators may be analyzed to determine, for example, acceleration of such systems. Some embodiments implement self-test by assessing expected performance of a system with toggling drive frequencies. More particularly, some embodiments implement self-test by artificially inducing displacement of a movable member of a system.

Abstract: According to embodiments of the present invention, there is provided a method, system and apparatus for logging into a communication client. The method comprises receiving a registration request from a first communication client, the first communication client being registered in association with a device group. The method further comprises, responsive to a determination that there does exist a second communication client registered in association with the device group, provisioning the first communication client and the second communication client according to the registration request.

Abstract: A microelectromechanical systems (MEMS) accelerometer is described. The MEMS accelerometer may comprise a proof mass configured to sense accelerations in a direction parallel the plane of the proof mass, and a plurality of compensation structures. The proof mass may be connected to one or more anchors through springs. The compensation structures may be coupled to the substrate of the MEMS accelerometer through a rigid connection to respective anchors. A compensation structure may comprise at least one compensation electrode forming one or more lateral compensation capacitors. The compensation capacitor(s) may be configured to sense displacement of the anchor to which the compensation structures is connected.

Abstract: A loudspeaker assembly may be configured with at least one driver disposed between first and second acoustic impedance structures. The first and second impedance structures can be arranged with one or more layers that have similar, or dissimilar, thicknesses. The first and second impedance structures can respectively be configured to maintain symmetric acoustic impedance on opposite sides of the driver during operation of the driver.

Abstract: A method and network element for implementing a virtual PBX feature for a customer associated with a plurality of endpoints. The method comprises receiving information regarding a call. Based on the information regarding the call, it is determined if the call is an external inbound call or an internal call that identifies a particular one of the endpoints. Responsive to determining that the call is an external inbound call, the call is caused to be routed to the plurality of endpoints associated with the customer, while responsive to determining that the call is an internal call that identifies a particular one of the endpoints, the call is caused to be routed to the particular one of the endpoints. This allows members of a small business or household to share a common external subscriber line, while also allowing the members to reach one another with ease.

Abstract: Various embodiments mitigate the risk of frequency-lock in systems having multiple resonators by dynamically changing the frequency at which at least one of the resonators is driven. More particularly, the drive frequency of at least one of the resonators is changed often enough that the multiple resonators do not have time to achieve frequency lock. Changes in the oscillation of the resonators may be analyzed to determine, for example, acceleration of such systems. Some embodiments implement self-test by assessing expected performance of a system with toggling drive frequencies. More particularly, some embodiments implement self-test by artificially inducing displacement of a movable member of a system.

Abstract: The present invention relates to Surfactant Protein D (SP-D) or nucleic acids encoding SP-D or variants thereof such as surfactant protein A or mannan binding lectin for use in the treatment and/or prevention of a parasitic infection. Methods for determining the presence of a parasitic infection by determining levels of SP-D in a sample are also disclosed. Also disclosed are helminths for treating allergy, inflammation or infection.

Abstract: A method, comprising: receiving a first identifier associated with an online transaction and a second identifier used by end user equipment involved in the online transaction; obtaining evidentiary information pertaining to the end user equipment based on the second identifier; storing in a database a record that associates the first identifier with the evidentiary information; and retrieving one of (i) the evidentiary information in said record and (ii) the first identifier in response to a request identifying the other of (i) the evidentiary information in said record and (ii) the first identifier. Where the online transaction is effected over a network after the end user equipment has gained access thereto, the evidentiary information may include information pertaining to a subscriber whose credentials were used by the end user equipment to gain access to the network. The information pertaining to the subscriber may include personal information about the subscriber.

Abstract: A microelectromechanical system (MEMS) accelerometer is described. The MEMS accelerometer is arranged to limit distortions in the detection signal caused by displacement of the anchor(s) connecting the MEMS accelerometer to the underlying substrate. The MEMS accelerometer may include masses arranged to move in opposite directions in response to an acceleration of the MEMS accelerometer, and to move in the same direction in response to displacement of the anchor(s). The masses may, for example, be hingedly coupled to a beam in a teeter-totter configuration. Motion of the masses in response to acceleration and anchor displacement may be detected using capacitive sensors.