Abstract: A relay rack includes a base, a pair of uprights, support gussets and a crossbar. The base is anchored to the ground. The uprights extend from the base to the crossbar. Support gussets stiffen the base and the uprights. The uprights and crossbar are formed such that any mechanical vibrations transmitted through the rack are continuously distributed through the rack members. The base is further stiffened by including a central member that stiffens the rack from deforming in the plane of the uprights.

Abstract: A print head moves forward and backward along a print track to perform a printing operation, and has at least one nozzle. A station assembly includes a carrier for holding the print head, the carrier moving the print head forward and backward along the print track, and a service station for servicing the print head. The service station is located at one end of the print track and has a housing, and a wiper assembly mounted in the housing for engaging with the carrier to wipe the nozzle. The wiper assembly has a wiper to wipe the nozzle and a carrier contact for mechanically engaging and contacting with the carrier. The carrier contact slides against the carrier along a wiping direction to provide the mechanical motion of the wiper to wipe the nozzles.

Abstract: An apparatus and method of a state metric memory for a viterbi decoder is disclosed including generating survival path metrics from the current-state metrics and simultaneously storing at least two next-state metrics designated by control signals. The present invention includes a plurality of submemories in a memory unit wherein each submemory stores both the current-state metrics and the next-state metrics.

Abstract: A system and a method for communicating dialed digits between a communication device and a call processor during call setup include transmitting at least the first digit of a telephone number from the communication device to the call processor within a first data packet. The call processor references a dialing plan to determine if the first data packet provides sufficient digits to complete the requested call. If not, the call processor determines the minimum quantity of digits required under the dialing plan to determine the destination of the call and transmits a protocol command to the communication device to transmit the minimum quantity of digits to the call processor within a subsequent data packet. The call processor continues to reference the dialing plan to determine whether additional digits are required and to request additional packets until sufficient packets have been received to establish the call.

Abstract: A backplane support bracket comprising a flange with opposing engaging tabs extending downward, and a flange extension arm with a connecting tab also extending downward. The opposing engaging tabs and flange fit over a frame module support cross-member in close fit, and the connecting tab is secured to a cable connector of a connector bank using a cable connector mounting screw located along a backplane edge strip of a cutout. With one or more backplane support brackets so installed, the bracket greatly reduces flexing of the cutout edge strip when cables are inserted and removed from the cable connector bank and circuit cards are inserted into the backplane.

Abstract: A data storage system for multidimensional parity protection includes a housing for containing a plurality of conventional disk drives for storing data wherein each of the conventional data disk drives is symmetrically linked to at least three parity disk drives for guarding data stored on the data disk drives. Each of the conventional data disk drives thereby have a three dimensional parity relationship with three parity data disk drives such that a three dimensional, mirrored, orthogonal parity array is established. The data storage system further includes a failure detection component coupled to the three dimensional, mirrored, orthogonal parity arrays for detecting and indicating the failure of any disk in the mirrored, orthogonal parity arrays. In addition, a data reconstruction component is coupled to the three dimensional, mirrored orthogonal parity arrays for reconstructing data from any failed disk by combining data from other parity disks in the orthogonal parity arrays.

Abstract: In the case where received e-mail data can not be printed, e-mail control section 33 transfers the received e-mail data to another information terminal device. And facsimile control section 34 instructs facsimile section 27 to print an error message including sender information and an attached file format. And indication control section 35 starts up indication section 29.

Abstract: A radio-frequency (RF) front-end is described. In one embodiment, the RF front-end comprises a low noise amplifier (LNA), a first mixer and an I/Q quadrature mixer. The LNA amplifies a received signal at a carrier frequency, the LNA having inductive loads. The first mixer is coupled to the low noise amplifier and mixes an amplified received signal with a first local oscillator (LO) signal to down convert the amplified received signal to an intermediate frequency (IF). The first mixer has inductive loads. The first frequency is related to the carrier frequency such that an image channel associated with the carrier and the LO frequency is outside the bandwidth of the inductive loads of the LNA. The I/Q quadrature mixer stage has a second mixer and a third mixer coupled to the first mixer. The I/Q quadrature mixer converts the amplified received signal at the IF to I and Q signals using a second LO signal related to the first LO signal.

Abstract: The invention is a test system that gives the user a single point of control to generate calls and run tests on a switching system for use in a communications network. The test system is capable of generating calls through a tandem switching system without using a local access switch. The test system is operationally coupled to the switching system by a signaling link and a call connection. The test system receives a first user request to generate a call. The test system transfers signaling to the switching system over the signaling link to cause the switching system to extend the call connection. The test system receives a second user request to run a test, and applies the test to the call connection. In some embodiments, the test system includes a web server that interfaces with a web browser operated by the user. The web server transfers information for screen displays to the web browser. The web server collects user requests from the web browser to generate calls and run tests.

Abstract: A system for updating area code information in predetermined telecommunications devices and networks as newly created area codes are implemented. Area code lists may be updated automatically and without the need for human intervention or manual reprogramming. A message receiving unit monitors the telephone connection and determines whether a “new area code” message is being transmitted by the telephone company central office or carrier. A message decoding unit decodes the transmitted message into a required format for a predetermined device. An update unit enables the area code lists to be automatically updated in the predetermined device if a list comparator determines that the area code does not exist in the lists.

Abstract: A method of introducing a feature during a communication between subscribers of a telecommunications network. The first step of the method is executing, at each predefined trigger point during the communication, an operation to activate a particular requested feature. The method then requires accessing data stored in a network memory for use in the activation operation. The data is arranged in the memory in table and bit map format so as to enable the features to be customized. The method then requires executing the particular requested feature upon activation. The method may also include repeating the method steps for each feature available to be activated at a respective trigger point in an order determined by the stored data. The method is independent of the type of requested feature.

Abstract: A communications device and method for effectively managing bandwidth within a telecommunications network carrying both time division multiplexed signals as well as data signals. The communications device having dialable TDM/cell and/or packet-based bandwidth management capability so that a network operator can select to manage bandwidth for any particular signal on in STS, VT, or cell or packet basis.

Abstract: Method for making a mobile-to-mobile wireless data communication in PCS (Personal Communication Services)/digital cellular mobile telecommunication system, is disclosed, which allows a direct communication without occupying an IWU, the method including the steps of (1) transmitting an originating instruction for a terminating mobile data terminal as an originating mobile data terminal sets up a service mode, (2) making a communication using a first radio link protocol (RLP) set up between the originating mobile data terminal and a base station/mobile switching center, (3) calling the terminating mobile data terminal through an identification number of the originating mobile data terminal and a service option as the originating instruction is executed, (4) informing a signal responding to the call to the originating mobile data terminal, (5) making a communication using a second RLP set up between the terminating mobile data terminal and the base station/mobile switching center, (6) setting up protocol layers

Abstract: An improved method and apparatus for automatically forming a virtual circuit in an ATM switch is disclosed. In one aspect of the invention, the virtual circuit may be used to transport an ATM data cell included in an associated communication session. The disclosed method includes the following operative steps. First, a configuration cell is created. Next the virtual circuit is formed by passing the configuration cell to a destination node by way of at least one connective node. The configuration cell updates and validates an associated connection table capable of defining a virtual link. The virtual link being part of the virtual circuit.

Abstract: An apparatus and method provide for interfacing a facsimile machine with a computer network. Specifically, an apparatus provides a fax interface for exchanging faxes with fax machine and a network interface for communicating with and retrieving electronic documents from a computer network. The apparatus further includes a memory for storing the electronic documents received from the computer network and the faxed pages received from the fax machine and a controller for comparing the electronic documents to the faxed pages. The apparatus may be employed to retrieve various electronic documents from the computer network in response to received faxes.

Abstract: A system and method provide enhanced services for a call that is transported from a communication device through an asynchronous transfer mode system. The call has user communications in asynchronous transfer mode cells and call signaling. A signaling processor receives the call signaling and processes the call signaling to determine a connection to a service platform. The signaling processor transports a processor control message designating the selected connection. An asynchronous transfer mode interworking unit receives the user communications from the communication device and the processor control message from the signaling processor. The asynchronous transfer mode interworking unit converts the user communications from the asynchronous transfer mode cells to a format compatible with the service platform and dynamically transports the user communications to the service platform in real time. The service platform processes the user communications.

Abstract: The present invention relates to a system and method for automatic synchronization in multimedia presentations. According to an embodiment of the present invention, when a data stream is compressed, delay which would normally be compressed out is replaced by a delay token which indicates a length of time of the delay. When a data stream is decompressed and presented, the delay tokens may either be used or ignored. In particular, when data streams are presented together in a multimedia presentation the delay tokens may be used to synchronize the various data streams of the multimedia presentation. Otherwise, when data streams are presented alone without the other data streams of a multimedia presentation or are not part of a multimedia presentation, the delay tokens may be ignored. In such cases when the delay token is ignored, any data stream delay is simply skipped since there is no need to synchronize with other data streams.

Abstract: The inventive embedded processing subsystem module is adapted for backside circuit board assembly directly opposite of a specific microprocessor or Digital Signal Processor so that circuit groups such as memory banks and communications peripherals may utilize otherwise unused backside printed circuit board space underneath the processor device, and further so that high-speed signals interconnecting the processor and subsystem circuit devices traverse a minimized printed circuit track length.

Abstract: A system that provides a means of effectively applying a mathematical substitution to the characteristic V/I equation for FET devices operating in the ohmic region that causes the non-linear (distortion producing) term to be cancelled thereby improving the realizable channel impedance linearity by orders of magnitude. The system comprised of a means to sum an isolated specific portion of the information signal applied to the FET with the Gate controlling voltage to produce a signal value that achieves the improved linearity result when applied to the FET Gate terminal.

Abstract: A method of converting an optical wavelength includes providing a wavelength converter assembly with a photodetector and a laser that have a common epitaxial structure with areas of differing bandgap. The laser including a laser resonator. An optical input with a first wavelength is absorbed at the wavelength converter assembly. A first electrical signal is generated from the photodetector in response to the optical input. The first electrical signal is conditioned and produces a conditioned first electrical signal. A second electrical signal is generated from the conditioned first electrical signal. A laser output is generated from a gain medium of the laser at a second wavelength in response to the second electrical signal.