Abstract: An adaptive process for optimizing the bit and energy configurations of data sub-channels in a multi-channel data transmission signal is disclosed. The inventive process is preferably embodied in one or more microcode routines executable by a high speed digital signal processor. A first routine initializes the transmission system, while a second routine adaptively changes system parameters as necessary to accommodate channel performance changes, varying target bit rates, etc. Both of the routines monitor, analyze and store sub-channel signal-to-noise characteristics, determine theoretical bit capacity loading, evaluates power performance margin, and optimize sub-channel configurations based on a series of iterative calculations intended to maximize the overall system power performance margin for any given target data rate. Alternatively, for a given power performance margin, the achieved data rate can be maximized. To achieve these results, a number of non-zero bit sub-channels (N.sub.

Abstract: The present invention includes a method and an apparatus for reducing power consumption in a wireless telephone. The wireless telephone is programmed to enter a reduced power mode for a sleep interval of time upon failing to access a base station. Additionally, the overall base station accessing process is considerably shortened by only searching once through the sequence of available carrier spectrums (e.g., digital and analog carriers for multi-mode mobile stations) before entering the reduced power mode. Also, when searching through a code division multiple access (CDMA) channel, the present invention includes searching only once through all pseudo-random number (PN) code timing locations when searching for a base station.

Abstract: In a telecommunications network which supports path replacement, an improved path replacement scheme is described for use after a supplementary service call has been carried out. The basic call and the supplementary call involve at least a basic call originating node, a diverting node and a diverted-to node of the telecommunications network. Where several methods are provided for carrying out the supplementary service, an identifier is included in one of the messages sent to the diverted-to node which identifies which method is intended for, or has been used for the supplementary service call. In response to this identifier, the diverted-to node either invokes a path replacement when the supplementary service call has been established over a non-optimum path or suppresses path replacement if the call is known to be optimum.

Abstract: An applications program is provided for permitting a user of a host processing system to dynamically control a modem having forward compatible and expandable functionality. In a preferred embodiment, the applications program is designed to run on a personal computer running the Windows.RTM. shell, and the modem is compatible with ADSL promulgated standards. As part of such program, initialization and detection routines determine the capabilities of an ADSL modem, including whether the same has been upgraded to have enhanced data throughput. A calibration routine measures the computing power available to the host processor, and based on this information and other relevant parameters determines nominal setup parameters for the modem. These parameters are stored in a Device Parameter Table so that they can be accessed by various application programs that may make use of such modem.

Abstract: The invention relates to a method of preparing an oxide of formula Li.sub.x Mn.sub.y O.sub.z, in which x lies in the range 0 to 2, y lies in the range 1 to 3, and z lies in the range 3 to 4.5, x, y, and z being such that the oxide has a composition close to LiMn.sub.2 O.sub.4. According to the invention, the method comprises the following steps:a) a polymer complex of lithium and of manganese is prepared in the form of a gel or of a xerogel by causing a reducing polymer, copolymer or polymer mixture possessing complexing functions for lithium and manganese to react in a common solvent with an oxidizing lithium salt and with an oxidizing manganese salt, and by evaporating off the solvent, partially or in full; andb) the resulting lithium and manganese polymer complex is mineralized by the explosive oxidation-reduction technique to recover fine amorphous particles of the oxide of formula Li.sub.x Mn.sub.y O.sub.z.

Abstract: A digital trunk interface unit for interfacing with a digital trunk of a PSTN in the RAS for connecting the PSTN to a different network by a T1 or E1 trunk, comprises a plurality of line card slots; a plurality of E1 line cards inserted into the line card slots to provide an interface of an E1 trunk; a plurality of T1 line cards inserted into the line card slots to provide an interface of a T1 trunk; a digital switch; an R2 signaling part; a tone generator; a processor; a clock selector; a PLL; a frequency-divider; and a clock converter. Therefore, personal computers of the PSTN connected to the RAS by the trunk interface unit, can be connected to a packet network by a modem unit and a gateway, thereby being provided information services from information providers.

Abstract: A hinge assembly, which permits convenient assembly and disassembly by simple push operations, includes a first part to be secured to a body member and carrying a hinge pin, and a second part to be secured to a pivotal member and carrying a socket for pivotally receiving the hinge pin of the first part. The hinge pin is retractably mounted to the first part so as to be movable to an extended, operative position receivable within the socket of the second part for pivotally mounting the pivotal member to the base member, and to a retracted, released position spaced from the socket of the second part for permitting removal of the pivotal member from the body member. Also described is a cabinet with at least one such hinge assembly on each of the two opposite edges of the main cabinet section and cover section, respectively.

Abstract: A smart card reader includes a smart card reader housing, and at least one movable locator connected to the housing. The movable locator has one end positionable away from the housing for engagement with an edge of a smart card.

Abstract: Telecommunications system apparatuses and methods are disclosed. The apparatuses include a telecommunications system having a data transmitting and receiving apparatus, subscriber buses, and channel unit cards. First and second subscriber buses provide, respectively, a communication path to a first and a second data transmitting and receiving apparatus. A plurality of channel unit cards are coupled to the first and second subscriber buses. In one mode of operation, at least one channel unit card communicates data over the first subscriber bus. In another mode of operation, at least one channel unit card communicates data over the first subscriber bus and at least one other channel unit card communicates data over the second subscriber bus. A method of configuring a telecommunications system is also disclosed. The method includes selecting groups of channel unit cards and configuring each group to communicate data over a first and a second subscriber bus.

Abstract: An output power control system prevents saturation by limiting total output power and maintaining closed loop responsiveness for a radio telephone having closed loop and open loop gain control systems. The output power control system determines when total output power exceeds an output power trigger level and automatically enters a saturation prevention mode whereby total output power is reduced through modification of a closed loop power control register. In one embodiment, an output detector and an output comparator continuously monitor output power, and in another embodiment, an analog-to-digital converter samples output power levels.

Abstract: A hadamard code generation circuit is disclosed. The circuit includes a start reset signal generator for generating a start reset signal START.sub.-- RESET when a 6-bit output signal REF.sub.-- C from the 6-bit reference counter, a higher 4-bit index output signal H(5:2) of the 6-bit register and a 2-bit value from a ground circuit are identical; a "0" value force allocation unit for outputting a FORCE.sub.-- 0.sub.-- DEL signal for forcibly allocating all values of the 0th column to "0" when a 4-bit output signal REF.sub.-- C (5:2) from the 6-bit reference counter and a 4-bit value from the ground circuit are identical; a 2-bit counter for receiving the start reset signal and an external clock signal, outputting lowest bit signals C1 and C0 and outputting a carry-out signal; a 4-bit counter operated in accordance with a result that an inverted FORCE.sub.

Abstract: An electro-optic polymer waveguide device capable of decreasing a driving voltage and an optical loss is disclosed. A vertical tapered waveguide is formed between passive waveguides of input and output portions in a waveguide and an electro-optic modulating region, and an amplitude of a waveguide mode of the input and output portion waveguide is equal to that of a optical fiber, thereby minimizing a connection loss with the optical fiber.

Abstract: A modular optical transmission cable which has several reinforcement and optical modules, each optical module having:a sheathed optical fiber, coated with:an intermediate decoupling layer, and witha rigid shell forming a microcarrier,a reinforcement module being associated with an optical module, the modules being molded in an external sheath. A flexible reinforcement module is associated with at least one optical module that is self-reinforced against compression in order to obtain a cable having high flexibility combined with high compressive strength. The disclosure can be applied in the field of optical fiber cables and especially that of the reinforcement structures of such cables and fibers.

Abstract: A system and method for temporarily relocating a subscriber in a cellular communications network to a new location such as another telephone. The subscriber enables the service by contacting a user interface system, which then instructs a home location network associated with the subscriber's home network and accessible through an intelligent network to provide appropriate information to the switch that is serving the new location. As a result, the subscriber may receive services that are identical, equivalent, or a subset of those that he receives from his home network.

Abstract: The bits transmitted are coded according to the product of at least two systematic block codes. Iterative decoding is applied in order to determine, at each code word search step, a data matrix ({R}) and a decision matrix ({D}) used for the following step. The new decision matrix is determined at each step by decoding the rows or columns of the input matrix, and the new data matrix is determined taking into account the correction terms which increase the reliability of the decoding on each iteration. The coding and decoding circuits (17) are rendered programmable by a puncturing technique allowing selection of the number of bits transmitted per coded block, the punctured bits preferably having uniformly distributed positions according to each dimension of the matrices.

Abstract: An interactive subscriber telephone terminal, comprising: a display screen; a plurality of temporarily definable response/data entry keys; and local control means for selectively causing the display screen and/or the response/data entry keys to be controlled by one of: remote signals transmitted to the terminal from a telephone switching office, and the local control means.

Abstract: A feedback-type optical fiber amplifier using hybrid pumping light beams disclosed, including: an optical line through which an optical signal is propagated; a plurality of rare-earth-doped fibers, doped with a predetermined rare earth ion, being coupled to the optical line in series; a plurality of pumping light sources for outputting pumping light beams having wavelengths different from each other; a plurality of optical coupling means for coupling the pumping light beams to the optical line; and feedback means for dividing the pumping light beam outputted through at least one of the rare-earth-doped fibers, and looping it back to corresponding rare-earth-doped fiber as its input. Therefore, the length of fiber constructing the optical fiber amplifier is reduced, and the amplification efficiency is improved.

Abstract: The present invention comprises speaker-independent, continuous speech, multilingual, multi-dialect, Automatic Speech Recognition (ASR) technology. In particular, the present application integrates the ASR technology into call control technology such that it will identify key words in two ways. First, it will "Listen" to live conversations of any or all telephone lines controlled by the call control system. Second, it will "Listen" to recorded conversations of any or all voice recorder channels so that previously recorded telephone conversations can be quickly scanned to find key words or phrases spoken in the past. The unique aspect of this application is that it is being applied to the corrections industry for the purpose of spotting key words or phrases for investigative purposes or inmate control purposes which then can alert or trigger remedial action.

Abstract: In an optically amplified transmission system including a concatenation of optical amplifiers in the transmission path between an optical transmitter and a non-coherent receiver, the transmitter includes, in addition to a modulator for impressing data modulation, a polarisation state modulator for improving the signal-to-noise ratio at the detector.