117 results about "Telecommunication application" patented technology

The invention pertains to wavelength-agile optical filters suitable for wavelength-division-multiplexed (WDM) optical communications networks. More particularly, the invention pertains to optical filters with a wavelength reference that can be remotely switched to arbitrarily selectable channels on a standard grid, and to re-configurable optical communications networks employing same. The present invention provides a communication apparatus with a tunable filter which may be used in a wide range of applications including tuning an external cavity laser (ECL), selecting a wavelength for an add / drop multiplexer and providing channel selection and feedback for a wavelength locker. The filter may be utilized as a discrete component or in combination with circulators, wavelength lockers and gain medium. The filter may be implemented in whole or in part as part of a gain medium. The tunable filter exhibits a compact form factor and precise tuning to any selected wavelength of a predetermined set of wavelengths comprising a wavelength grid. The tunable filter may thus be utilized in telecom applications to generate the center wavelengths for any channel on the ITU or other optical grid.

A large-scale radio frequency signal information processing and analysis system that provides advanced signal analysis for telecommunication applications, including band capacity and geographical density determinations and detection, classification, identification, and geolocation of signals across a wide range of frequencies and across broad geographical areas. The system may utilize a range of novel algorithms for bin-wise processing, Rayleigh distribution analysis, telecommunication signal classification, receiver anomaly detection, transmitter density estimation, transmitter detection and location, geolocation analysis, telecommunication activity estimation, telecommunication utilization estimation, frequency utilization estimation, and data interpolation.

The invention pertains to wavelength-agile optical filters suitable for wavelength-division-multiplexed (WDM) optical communications networks. More particularly, the invention pertains to optical filters with a wavelength reference that can be remotely switched to arbitrarily selectable channels on a standard grid, and to re-configurable optical communications networks employing same. The present invention provides a communication apparatus with a tunable filter which may be used in a wide range of applications including tuning an external cavity laser (ECL), selecting a wavelength for an add / drop multiplexer and providing channel selection and feedback for a wavelength locker. The filter may be utilized as a discrete component or in combination with circulators, wavelength lockers and gain medium. The filter may be implemented in whole or in part as part of a gain medium. The tunable filter exhibits a compact form factor and precise tuning to any selected wavelength of a predetermined set of wavelengths comprising a wavelength grid. The tunable filter may thus be utilized in telecom applications to generate the center wavelengths for any channel on the ITU or other optical grid.

The present invention provides optical filters that can be used in a range of telecommunications applications including optical multiplexers / demultiplexers, optical routers, and optical gain scalers. The optical filter is modular, using two or more couplers with a pair of delay paths between each pair of couplers in a sequence to generate a range of optical filter functions. The desired filter profile / function is obtained by proper selection of the coupling ratio for each coupler and by the length of each pair of delay paths. The couplers may be implemented as polarization or intensity beam splitters positioned along the optical path. Each coupler couples in controllable amounts, one or two inputs with the corresponding pair of delay paths. Where a coupler is implemented as a polarization beam splitter, the coupling is accomplished by input to the coupler of polarized light and by the subsequent separation of orthogonal "P" and "S" components of that light onto corresponding ones of the pair of delay paths. Where coupling is implemented with an intensity beam splitter, the coupling is accomplished by input of light with the percentage of reflection and transmission of the light determining the coupling ratio or percentage of the light input onto corresponding ones of the pair of delay paths. The pair of delay paths includes in an embodiment of the invention, passive thermal stabilization. The passive thermal stabilization of the filter(s) is accomplished by a plurality of optical elements positioned in and defining the optical path length of each member of the pair of paths. These optical elements are designed so that the optical path length difference between the pair of delay paths remains substantially invariant across a range of temperatures.

Remote enclosure systems have now been designed and are described herein that meet the following goals: a) consolidate electrical terminations in one system; b) pre-terminate AC and DC equipment loads before site installation; c) provide multiple access points for facilitating equipment repair and installation; d) are easily configurable and expanded through the use of a modular frame design that accommodates a variety of customized side panels or the attachment of a variety of expansion cabinets; e) are aesthetically functional given the cable entry and routing structure; f) provide exceptional thermal management and g) reduce problems inherent in conventional electronic setups. Remote enclosure systems contemplated generally include: a) a frame system further comprising at least two side panels; b) at least one door coupled to the frame system; c) a cable management top assembly coupled to the frame system; d) at least one removable radiofrequency (RF) management system, such as at least one RF port plate, at least one RF port, at least one RF cable or any other suitable system for managing RF signals and a combination thereof, coupled to at least one of the side panels, coupled to and / or located within the cable management top assembly and / or coupled to and / or located within the frame system or a combination thereof and e) a bottom panel coupled to the frame system. The remote enclosure system may also comprise any number of components suitable for electronics, wireless and cable-based data and telecommunications applications, including air conditioner exhaust member, an air conditioner unit, a battery pack, a meter base, a power receptacle box, an alarm system or alarm device, an expansion cabinet, a coupling device or system, a pre-wiring system and / or a demarcation component.

A method and apparatus for providing selective call execution based on user preferences in a user communication device are provided herein. The method includes intercepting an outgoing call placed using a native telecommunication dialer; and diverting the intercepted call to an OTT telecommunication application based on a comparison of information associated with the intercepted call and one or more pre-selected user preferences for diverting calls to the OTT telecommunication application.

A voice based multimodal speaker authentication method and telecommunications application thereof employing a speaker adaptive method for training phenome specific Gaussian mixture models. Applied to telecommunications services, the method may advantageously be implemented in contemporary wireless terminals.

An arrangement for generating addresses for interleaving / de-interleaving sequences (X1, X2, X3, . . . , XK) including a given number (K) of items, wherein each value for said given number (K) identifies a corresponding set of interleaving parameters (R, C, p, v). The arrangement has at least one memory unit wherein a plurality of records are stored, each record being indicative of a respective set of parameters (R, C, p, v) corresponding to at least one value for said given number (K). Sets of interleaving parameters (R, C, p, v) are thus available in the memory unit to be promptly and directly retrieved for all possible values of said given number of items (K). A preferred use is in turbo encoders / decoders for advanced telecommunications applications such as UMTS.