Abstract: The present disclosure is directed toward architectures that combine DWDM and CWDM concepts in a single PIC. Transmitter stages in accordance with the present disclosure include a plurality of multiwavelength lasers having regions of separately grown epitaxial material whose gain peaks are centered at different wavelengths. Each laser launches a wavelength comb comprising a plurality of wavelength signals into a PLC, where the wavelengths within each wavelength comb are separated by a wavelength spacing that is smaller than that between adjacent wavelength combs. In some embodiments, the PLC includes modulator banks for encoding data on the wavelength signals and combining them to produce a composite DWDM output signal. In some embodiments, a receiver stage is included for demultiplexing a composite DWDM input signal and detecting each wavelength channel within it.

Abstract: A system, method, and apparatus for pharmacy remote verification is disclosed. In an example, a pharmacy remote verification apparatus is configured to receive, from a local pharmacy system, a set of prescription fill information for remote verification for a plurality of prescriptions. The pharmacy remote verification apparatus creates an ordered list of the prescriptions based on an urgency such that a most urgent prescription is ordered first for review. The pharmacy remote verification apparatus receives, from a remote verifier device, a request message to review a prescription. In response, the pharmacy remote verification apparatus causes the first ordered prescription to be displayed on the remote verifier device. The remote verifier device may provide a verified message, which is relayed by the pharmacy remote verification apparatus to the local pharmacy system to enable the corresponding prescribed medication to be released to a patient.

Abstract: In one embodiment, an apparatus includes a network management module configured to execute at a network device operatively coupled to a switch fabric. The network management module is configured to receive a first set of configuration information associated with a subset of network resources from a set of network resources, the set of network resources being included in a virtual local area network from a plurality of virtual local area networks, the plurality of virtual local area networks being defined within the switch fabric. The first set of configuration information dynamically includes at least a second set of configuration information associated with the set of network resources.

Abstract: An example rail mounted assembly includes a controller housing having a locking post extending from a base of the controller housing and multiple mounting guides extending from the base and each mounting guide includes a guiding slot, and a rail having two side portions and a center portion therebetween. Each side portion is coupled to a particular side of the center portion and forms an L-shaped edge and each side portion is configured to slide into the guiding slot of a particular mounting guide of the controller housing for coupling the rail to the controller housing. The center portion includes a flexible cutout tab with a hole for sliding over and engaging with the locking post when coupling the rail to the controller housing to lock the rail to the controller housing. Example methods of securing and releasing components of the rail mounted assembly are also described.

Abstract: An example rail mounted assembly includes a controller housing having a locking post extending from a base of the controller housing and multiple mounting guides extending from the base and each mounting guide includes a guiding slot, and a rail having two side portions and a center portion therebetween. Each side portion is coupled to a particular side of the center portion and forms an L-shaped edge and each side portion is configured to slide into the guiding slot of a particular mounting guide of the controller housing for coupling the rail to the controller housing. The center portion includes a flexible cutout tab with a hole for sliding over and engaging with the locking post when coupling the rail to the controller housing to lock the rail to the controller housing. Example methods of securing and releasing components of the rail mounted assembly are also described.

Abstract: In one embodiment, an apparatus includes a network management module configured to execute at a network device operatively coupled to a switch fabric. The network management module is configured to receive a first set of configuration information associated with a subset of network resources from a set of network resources, the set of network resources being included in a virtual local area network from a plurality of virtual local area networks, the plurality of virtual local area networks being defined within the switch fabric. The first set of configuration information dynamically includes at least a second set of configuration information associated with the set of network resources.

Abstract: In one embodiment, an apparatus includes a network management module configured to execute at a network device operatively coupled to a switch fabric. The switch fabric may have a distributed control plane. The network management module is configured to receive a request regarding status information for a certain set of network resources identified with a virtual or logical identifier. The network management module is configured to generate and send a corresponding query for status information to a set of physical elements that encompass and may be larger than the certain set of network resources and collect responses to that query. The network management module is configured to construct a response to the request from the status information in the collected responses to the query. The constructed response includes only information related to the original request.

Abstract: In one embodiment, an apparatus includes a network management module configured to execute at a network device operatively coupled to a switch fabric. The network management module is configured to receive a first set of configuration information associated with a subset of network resources from a set of network resources, the set of network resources being included in a virtual local area network from a plurality of virtual local area networks, the plurality of virtual local area networks being defined within the switch fabric. The first set of configuration information dynamically includes at least a second set of configuration information associated with the set of network resources.

Abstract: The present invention utilizes a decision feedback equalizer (DFE)/finite impulse response filter. A plurality of taps of the equalizer supply coefficients to the input function and are updated in a feedback loop. An additional DC tap is provided, with a constant value as its input source. Within reasonable limits, the constant term (i.e. D.C.) in an analog input signal is subtracted out by the action of the constant value DC tap. The coefficients are updated by a decision feedback means such that phase, amplitude and DC offset may all be corrected. In the preferred embodiment, the filter is a T/2 spaced filter in which two samples per baud are utilized by the filter. The filter outputs a complex word which is coupled to a quantizer. The actual constellation locations are compared to the ideal locations in a difference block so that offset errors may be detected. The difference signal is used to update the coefficient values. One of the coefficients so generated is the DC tap in the filter.

Abstract: The present invention is a method and apparatus for implementing a two stage AGC circuit. In the preferred embodiment, the present invention is used as part of a receive channel in a modem. The first stage of the AGC is a "coarse" AGC and is used to track large signal transients of an input signal. The coarse AGC locks on to transient signals without excessive settling time. In operation, the coarse AGC acquires a new signal by using a nonlinear clipped feedback loop technique supported by a linearized feedback loop. The coarse AGC stage uses an error signal derived from the noncoherent power fluctuations of the incoming signal. The second stage of the AGC circuit is a "fine" AGC using a decision-directed coherent amplitude error signal and a quick linear feedback loop to correct for finer signal level fluctuations. The fine AGC has a high pass characteristic which decouples its response from that of the equalizer for stability reasons.

Abstract: The present invention employs a four sample per baud timing recovery scheme to achieve fast acquistion of initial timing phase uncertainity and reliable fast tracking with low jitter for non-equalized QAM wave forms. The present invention operates for data timing frequency uncertainties up to 0.02 percent in the preferred embodiment. The timing recovery system is implemented with programmable digital signal processor code in connection with a programmable phase baud timer. The baud timer may be implemented in software or hardware. The present scheme is based on a pair of quadrature (T/4 spaced) timing error signals derived by a wave difference method. In the wave difference method, the envelope power of each baud sample is computed by square summing the real and imaginary samples of the received analog signal.