摘要:
The present disclosure provides dynamic performance monitoring systems and methods for optical networks to ascertain optical network health in a flexible and accurate manner. The present invention introduces accurate estimations for optical channel performance characteristics based either on existing channels or with a dynamic optical probe configured to measure characteristics on unequipped wavelengths. Advantageously, the dynamic performance monitoring systems and methods introduce the ability to determine physical layer viability in addition to logical layer viability.
摘要:
Motorized split-hinge device for a very heavy double door, designed to be motorized and consisting of at least one flap or panel (1) that is mounted to pivot, around an essentially vertical axis of rotation, on a frame (2), comprising a stationary split-hinge part (3) that is integral with said frame (2) and a movable split-hinge part (4) that is integral with said flap (1) and mounted in rotation relative to said stationary split-hinge part (3) around a pivoting shaft.The movable split-hinge part (4) comprises a drive mechanism that is driven by a motor unit (7) that is able to drive said movable split-hinge part (4) in rotation around its pivoting shaft and starting said flap (1) moving by pivoting when opening or closing, whereby said motor unit (7), on the one hand, is mounted in a removable manner on said drive mechanism and on a stationary part (3) of said door, and, on the other hand, is kept in drive position of said mechanism with anti-rotational locking, optionally with radial play, relative to said flap (1).
摘要:
A method performed at a transmitter comprises generating a set of digital signals representing a constellation point, each dimension of the point being uniquely represented by m bits, where mϵ{1, 2, 3}; applying a linear polyphase filter to a digital signal of the set, the linear polyphase filter pre-compensating for a linear transfer function of an electro-optic path of the digital signal and generating a first filtered signal having a roll-off factor α, where α is a positive real number satisfying α≤1; applying a nonlinear polyphase filter to the digital signal, in parallel to applying the linear polyphase filter to the digital signal, the nonlinear polyphase filter generating a second filtered signal representing nonlinear noise in the electro-optic path; calculating a pre-compensated digital signal from a difference between the first and second filtered signals; and transmitting an optical signal based on the pre-compensated digital signal.
摘要:
The present disclosure provides dynamic performance monitoring systems and methods for optical networks to ascertain optical network health in a flexible and accurate manner. The present invention introduces accurate estimations for optical channel performance characteristics based either on existing channels or with a dynamic optical probe configured to measure characteristics on unequipped wavelengths. Advantageously, the dynamic performance monitoring systems and methods introduce the ability to determine physical layer viability in addition to logical layer viability.
摘要:
A motorized split-hinge device for a very heavy double door, designed to be motorized and including a flap that is mounted to pivot around an essentially vertical axis of rotation on a frame, includes a stationary split-hinge part integral with the frame and a movable split-hinge part integral with the flap and mounted in rotation relative to the stationary split-hinge part around a pivoting shaft. The movable split-hinge part includes a drive mechanism driven by a motor unit adapted to drive the movable split-hinge part in rotation around its pivoting shaft and starting the flap moving by pivoting when opening or closing, whereby the motor unit is mounted in a removable manner on the drive mechanism and on a stationary part of the door, and is kept in drive position of the mechanism with anti-rotational locking relative to the flap.
摘要:
The present disclosure provides a multi-carrier optical transmitter, receiver, transceiver, and associated methods utilizing offset quadrature amplitude modulation thereby achieving significant increases in spectral efficiency, with negligible sensitivity penalties. In an exemplary embodiment, an optical transmitter includes circuitry configured to generate a plurality of optical subcarriers, a plurality of data signals for each of the plurality of subcarriers, and a plurality of modulator circuits for each of the plurality of subcarriers, wherein each of the plurality of modulator circuits includes circuitry configured to offset an in-phase component from a quadrature component of one of the plurality data signals by one-half baud period.
摘要:
An oscillating-mount split-hinge device is provided that is designed to be fitted on a heavy door having at least one panel mounted to pivot on a frame. The split-hinge device includes at least one lower split-hinge configured to support at least the bulk of the load of the panel of the door, and at least one upper split-hinge configured to form an anti-tilting holding point and axial guide of the panel. Each of the lower split-hinge and the upper split-hinge includes a stationary split-hinge part integrated with the frame, and a movable split-hinge part integrated with the flap. Each of the lower split-hinge and the upper split-hinge also includes a pivoting shaft integrated with one of the frame and the panel, the pivoting shaft being configured to enable rotatably guiding the movable split-hinge part relative to the stationary split-hinge part around said pivoting shaft.
摘要:
The present disclosure provides a multi-carrier optical transmitter, receiver, transceiver, and associated methods utilizing offset quadrature amplitude modulation thereby achieving significant increases in spectral efficiency, with negligible sensitivity penalties. In an exemplary embodiment, an optical transmitter includes circuitry configured to generate a plurality of optical subcarriers, a plurality of data signals for each of the plurality of subcarriers, and a plurality of modulator circuits for each of the plurality of subcarriers, wherein each of the plurality of modulator circuits includes circuitry configured to offset an in-phase component from a quadrature component of one of the plurality data signals by one-half baud period.
摘要:
The present disclosure provides dynamic performance monitoring systems and methods for optical networks to ascertain optical network health in a flexible and accurate manner. The present invention introduces accurate estimations for optical channel performance characteristics based either on existing channels or with a dynamic optical probe configured to measure characteristics on unequipped wavelengths. Advantageously, the dynamic performance monitoring systems and methods introduce the ability to determine physical layer viability in addition to logical layer viability.
摘要:
A system and method for optimizing the transmission of signals over a group of wires. In a preferred form of the present invention, a multi-wire bus connects a common card to a plurality of line cards. A framing protocol controls transmissions between the common card and the plurality of line cards. The framing protocol includes a frame having a prefix that identifies in which direction a given transmission will occur. The prefix also identifies over which wire or wires a given line card will receive data. Each of the line cards are configured to interpret the prefix so that at any given time data can be transmitted from the common card to one or more of the line cards by either transmission over a single wire or a plurality of wires.