Abstract: A method is provided for increasing data throughput in a wireless telecommunications environment. The method includes the following steps: mapping a discrete bit sequence associated with a subscriber to an in-phase component and a quadrature component, the in-phase component and the quadrature component defining modulation of a radio frequency signal in phase and magnitude; and encoding the in-phase component and the quadrature component with a multiple access sequence associated with the subscriber.

Abstract: A cable retainer bracket (10) includes an elongated member (12) having two longitudinal edges (14 and 16) and a curved surface (18), the curved surface (18) defined by a predetermined radius of curvature (20). A plurality of teeth (22) are disposed along each longitudinal edge (14) and (16) which define notches (24) therebetween.

Abstract: A multiple rate network interface (42) is provided to interface a telecommunication network and a digital telecommunication switch (48). The multiple rate network interface (42) may operate in at least a first mode and a second mode. The first mode allows telecommunication signals in a first format to be exchanged between a telecommunication network and the digital telecommunication switch (48). The second mode allows telecommunication signals in a second format to be exchanged between a telecommunication network and the digital telecommunication switch (48). The first format may be synchronous transport protocol level one (STS-1) and the second format may be digital signal level three (DS3). The multiple rate network interface (42) includes a first processing circuit, a second processing circuit, and a control circuit. The first processing circuit may include a bipolar interface (60), an STS-1 terminator (64), a signal switching circuitry (70), a VT 1.5 terminator (66), and a payload processor (68).

Abstract: A service and facility initiation device (10) includes a first relay matrix (12) and a second relay matrix (14) coupled by an initiation bus (16). The first relay matrix (12) includes relays (30) that provide service feeds to primary/redundant and secondary service drops from primary and secondary in-service feeds received at the first relay matrix (12) and additional service feeds from the second relay matrix (14) via the initiation bus (16). The second relay matrix (14) includes relays (34) to place additional service feeds onto the initiation bus (16). The service and facility initiation device (10) includes a modem (28) or other communications interface that receives external control information to remotely operate relay drivers (20) for appropriate configuration of the relays (30 and 34) according to the service needs and requests of local customers.

Abstract: A method for generating billing information for a call in a telecommunications network is disclosed. In one embodiment, a call initiation stimulus is received at a service switching system (112). The service switching system (112) notifies a service control system (104) of the call initiation stimulus. The service control system (104) generates a first TCAP connect message with a destination routing address portion having a billing information tag and customer billing information. The first TCAP connect message is transmitted to the service switching system (112), which transmits a response message to the service control system (104). The service control system (104) transmits a second TCAP connect message to the service switching system (112) in response to the response message. The service switching system (112) generates a billing record in response to the first TCAP connect message.

Abstract: An automatic impedance matching front end interface circuit includes a processor and a plurality of variable resistors, the resistances of which are adjustable by the processor to achieve impedance matching such that the upstream and downstream signals flow in desired directions. A method of adjusting the resistances of the variable resistors includes measuring two voltages at different locations along a downstream transmission line, obtaining a measured voltage ratio, comparing the measured ratio to an optimal ratio, and adjusting the resistances of the variable resistors to cause the measured ratio to approach the optimal ratio.

Abstract: A housing (10) for a cooling fan (56) includes a first side wall (12) and a second side wall (14) separated by a front wall (16). A first wall portion (22) extends from the first side wall (22) toward the second side wall (14) and opposite from the front wall (16). A second wall portion (26) extends from the second side wall (14) toward the first side wall (12) and opposite from the front wall (16). A first flexible member (30) on the first wall portion (22) extends along the first side wall (12) and is arched toward the front wall (16). A second flexible member (32) on the second wall portion (26) extends along the second side wall (14) and is arched toward the front wall (16). A cooling fan (56) is inserted into the housing (10), compressing the first flexible member (30) and the second flexible member (32) that force the cooling fan (56) against the front wall (16). The front wall (16) may include tabs (42, 46, 48, 50) to enhance the ability to secure the cooling fan (56) within the housing (10).

Abstract: A file system (10) for a memory device includes a first volume (12), a second volume (14), and a third volume (16). The first volume (12) is located at a highest portion of the memory space defined by the file system (10) of the memory device and includes a primary volume and directory entry control block area (18) to store the control blocks associated with the entire memory space of the memory device. Control blocks are stored in a descending order within the first volume (12). The second volume (14) is located at an intermediate portion of the memory space defined by the file system (10) and includes a secondary volume and directory entry control block area (20) to store the control blocks when the primary control block area (18) of the first volume (12) is being erased and rewritten into. The third volume (16) is located at a lowest portion of the memory space defined by the file system (10) and is used to store data files in an ascending direction.

Abstract: A two-line subscriber system (10) includes a remote channel unit (20) coupled to a central office (14) by a single telephone line (16). The remote channel unit (20) provides additional line capability to a customer premises (18) by allowing a first telecommunications unit (22) and a second telecommunications unit (24) to operate despite having only a single telephone line (16). The remote channel unit (20) operates from a local power source (26), such as a battery or customer premises alternating current, to provide operating power to the first telecommunications unit (22) and the second telecommunications unit (24). In response to a loss of the local power source (26), the remote channel unit (20) cuts a connection to the second telecommunications unit (24) and passes line power from the single telephone line (16) to the first telecommunications unit (22) for continued operation of the first telecommunications unit (22).

Abstract: The invention comprises a time slot interchanger and method for multiplexing ISDN D-channel signals into multiplexed signals in a digital communications terminal. The method comprises receiving a frame of communication signals wherein some of the communication signals represent ISDN D-channel signals. The frame of communication signals is stored in memory during a first frame period. During a second frame period, at least some of the stored communication signals are retrieved from memory. Multiplexed signals are assembled wherein each multiplexed signal comprises a multiplexed combination of the data bits of ISDN D-channel signals retrieved from memory. The multiplexed signals are then output during a second frame period.

Abstract: The invention comprises a time slot interchanger and method for multiplexing ISDN D-channel signals into multiplexed signals in a digital communications terminal. One method comprises receiving a frame of communication signals wherein some of the communication signals represent ISDN D-channel signals wherein each ISDN D-channel signal is represented by a first number of data bits and a second number of other bits. The first number of data bits are stored in one of four memories--a first memory, second memory, third memory or fourth memory. The data bits are stored during a first frame period. Multiplexed signals are then assembled wherein a multiplexed signal comprises a multiplexed combination of the data bits of ISDN D-channel signals retrieved from the frame of communications signals.

Abstract: A system and method (510) for software documentation process control includes the steps of receiving and storing check-in data related to documentation (540, 542, 544, 546, 550, 552) checked into a version control system (12). Subsequently, the documentation are associated with a specific version and release of a software product, and tags the documentation with a unique label indicative of the specific version and release of the software product. The documentation is stored in a project file directory (566) associated with the specific version and release of the software product.

Abstract: A timing system (100) for coordinating the components of a distributed digital cross-connect system (10) is provided. The timing system (100) includes a master timing system (102) that receives a network timing reference (98, 99) and generates a master timing signal. A distributed services node timing system (104, 106) is connected to the master timing system (102) and receives the master timing signal. The distributed services node timing system (104, 106) then embeds a timing signal in a data transmission frame (150). Two or more digital cross-connect timing systems (108) are connected to the distributed services node timing system (104, 106) and receive the data transmission frame (150). The digital cross-connect timing systems (108) retrieve the embedded timing signal from the data transmission frame (150).

Abstract: Apparatus for redundancy circuit protection includes a controller (20), a plurality of circuits (22) coupled to the controller (20), and a redundancy switch (50) coupled between the plurality of circuits (22) and a network. The redundancy switch (50) is adapted for connecting or disconnecting selected ones of the plurality of circuits (22) to or from the network. In addition, a predetermined number of spare circuits (52) with similar functionality as the plurality of circuits (22) are coupled to the high density bank control unit (20), so that the redundancy switch (50) may connect or disconnect selected ones of the predetermined number of spare circuits (52) to the network and establish a transmission path from the controller (20) through the selected spare circuits (52) to the network.

Abstract: A system (130) for providing enhancement to a voice-band signal in a telecommunications network (138) is provided. The present system (130) includes a power averager (18) for determining the average power of the voice-band signal. The present system (130) also includes an equalizer (132) for attenuating a predetermined portion of the voice-band signal and an output scaler (134) for scaling the equalized voice-band signal with a scaling factor. The system (130) of the present invention also includes an automatic gain enhancer (136) for applying an automatic gain factor to the scaled voice-band signal and wherein the automatic gain factor is dependent upon the average power of the input voice-band signal.

Abstract: Global title translation services or programs are generated by using service independent building blocks (200). A graphical editor or interface (300) may be used to select and link icon representations (302) of service independent building blocks previously defined to perform discrete functions associated with global title translation. The linked service independent building blocks form a logic program (220) which is then interpreted to generate a C++ equivalent executable program (241).

Abstract: A remote facilitation network (10) includes a base computing equipment environment (12) having a computer (14) and a control and activation device (16). A remote user (18) requests communications with the base computing equipment environment (12) through a wireless paging service (20). The remote user (18) generates a paging message that is transmitted by the wireless paging service (20) and received at the control and activation device (16). The control and activation device (16) processes and interprets the paging message in order to activate the computer (14). The paging message includes a callback number that is transferred from the control and activation device (16) to the computer (14). The computer (14) dials the callback number in order to establish a communication link with the remote user (18).

Abstract: A method (100) for preventing message looping in a telecommunications network (70) includes the steps of receiving a UDT/S query message, determining a next destination for processing the query message and a route for delivering the query message to the next destination (102). A determination is then made as to whether the route to the next destination is XUDT/S capable (104). The UDT/S query message is converted to an XUDT/S format by inserting a hop counter (38) therein if the route is XUDT/S capable (108). The query message is then delivered to the next destination via the route (110). The hop counter (38) in the query message is then decremented at the next destination in response to receiving a message of the XUDT/S format (112). A message loop error is recognized and processed when the hop counter (38) reaches a predetermined value.

Abstract: A host digital terminal (118) receives telephony traffic from a time division multiplexed (TDM) switch (122) and packet data asynchronous transfer mode (ATM) cells containing packet data information from an ATM switch 116. The host digital terminal (118) converts the telephony traffic into telephony ATM cells (34) and multiplexes the telephony ATM cells with the packet data ATM cells for placement into a synchronous optical network (SONET) frame (38). The host digital terminal (118) transports the SONET frame (38) to an optical network unit (124). The optical network unit (124) demultiplexes the telephony ATM cells (34) from the packet data ATM cells in the SONET frame (38). Packet data information within the packet data ATM cells is extracted and provided to a monitor (132) through a network terminator (126) and a computer or set top unit (130). Telephony traffic is extracted from the telephony ATM cells (34) and provided to telecommunications equipment (128) through the network terminator (126).

Abstract: A telecommunications switch (12) includes a dial plan database (300) used for creating, identifying, and verifying dial plan codes and dialing sequences of a desire dial plan (100). The dial plan (100) is created through a craft terminal (201) that communicates with a craft interface (200) of the telecommunications switch (12). The telecommunications switch (12) uses dial plans created and stored within the dial plan database (300) in performing a digit parsing routine. The digit parsing routine identifies dial plan codes and dialing sequences through digit collection by systematically eliminating possible dial plan codes until one is identified. The identified dial plan code is processed by performing valid or error actions associated with the identified dial plan code. The digit parsing routine continues with an incoming call until it has been appropriately handled and awaits for the next incoming call digits to be received.