Abstract: A method and system for maximizing wavelength reuse in an optically protected wavelength-division-multiplexed (WDM) network, the WDM network supporting a plurality of service connections, includes associating service connections supported by non-overlapping paths to form respective service channel groups, and for each service channel group, assigning at least one common wavelength channel for establishing the service connections. In addition, for each of said groups, at least one common wavelength channel is assigned for establishing a shared protection path for the service connections of each of said groups. In addition, the wavelength channels assigned for establishing the shared protection paths for each of the groups may be used for providing service connections for the WDM network when not in use as shared protection paths. However such provisional service connections are dropped when the wavelength channels are needed to establish shared protection paths.

Abstract: A method and system for maximizing wavelength reuse in an optically protected wavelength-division-multiplexed (WDM) network, the WDM network supporting a plurality of service connections, includes associating service connections supported by non-overlapping paths to form respective service channel groups, and for each service channel group, assigning at least one common wavelength channel for establishing the service connections. In addition, for each of said groups, at least one common wavelength channel is assigned for establishing a shared protection path for the service connections of each of said groups. In addition, the wavelength channels assigned for establishing the shared protection paths for each of the groups may be used for providing service connections for the WDM network when not in use as shared protection paths. However such provisional service connections are dropped when the wavelength channels are needed to establish shared protection paths.

Abstract: Speckle-patterned paper is produced on the paper machine without the use of printing techniques by first preparing speckle-forming material and then introducing this into a contrasting color papermaking furnish. Paper is then made from the speckle-containing furnish in the normal way. The speckle-forming material is produced either by agglomerating a mixture of papermaking fibre, particulate pigment and, preferably, a latex or other binder or by dry comminution of cellulose fibre aggregates in the form of paper or entangled fibre clumps.

Abstract: A method of producing a two-color mottle-effect patterned paper comprises the steps of coloring a papermaking stock by means of a first dye formulation, draining the resulting colored stock through a papermaking wire to produce a dyed wet paper web, subjecting the web to pressure, applying a second dye formulation to the paper web, said second dye formulation being of a different hue from the first dye formulation, and drying the web. The web is preferably subjected to pressure by passage through a smoothing press nip before passing to the drying section of the papermachine. The smoothing press can be one of the presses of the press section of the papermachine, run in unfelted mode. The second dye formulation is preferably applied at the papermachine size press or by spraying.

Abstract: Apparatus and method are provided that can be advantageously included in a timing phase-locked loop for finally adjusting the period of a timing signal being controlled by that loop. The loop filter receives the timing signal and generates a loop error signal indicative of whether the period of the timing signal should be held the same, increased or decreased. A strobe signal is also generated each time that the timing signal is to be so corrected. The error signal and strobe signal are provided to a function generator such as a state machine. Each time that the function generator is strobed by the strobe signal, it produces a count signal whose value is representative of N, N+C or N-C, where N and C are integers and C represents a preset desired increment of change for the timing signal per strobe, i.e. the fineness of the adjustment of the timing signal. When not strobed by the strobe signal, the state machine produces a count signal of value N.

Abstract: Speckle-patterned paper is produced on the paper machine without the use of printing techniques by first preparing speckle-forming material and then introducing this into a contrasting color papermaking furnish. Paper is then made from the speckle-containing furnish in the normal way. The speckle-forming material is produced either by agglomerating a mixture of papermaking fiber, particulate pigment and, preferably, a latex or other binder or by dry comminution of cellulose fiber aggregates in the form of paper or entangled fiber clumps.

Abstract: A circuit for maximizing power transfer from a station to an interactive memory card via a capacitive interface. A reader system in the station generates an ac signal which provides operating power that is transferred to the card through the capacitive interface formed when the card is placed against a window on the station. The ac signal from the station is directed through a series resonant circuit to the card. The capacitive interface between the station and card make up the capacitive element of the resonance circuit while the series combination of the secondary of a transformer and an electrically variable inductor form the inductive element. Use of the variable inductor allows the station to tune the circuit to resonance and cancel the capacitive element, thereby maintaining maximum power transfer to the card.