Abstract: Color electrophotographic printers having latent image positions synchronized with start-of-scan signals. A laser source projects a laser beam onto a multifaceted rotating polygon that sweeps that beam in a scan line across a moving photoreceptor. A start-of-scan detector produces start-of-scan signals when the laser beam is in position to write a scan line. A belt sensor produces belt signals when indicia on the photoreceptor passes a reference position. A controller receives the belt signals and the start-of-scan and then adjusts the photoreceptors rotational velocity such that the belt signals are an integral multiple of the start-of-scan signals. To reduce the impact of drive roller eccentricities on belt signal to start-of-scan signal timing, the perimeters of photoreceptor roller elements are sub-multiples of the photoreceptor length.

Abstract: An apparatus and methods enforcing network-centric control over access to a selected destination point in a switched telephone network are presented in which, a user seeking access to the selected destination point is authenticated in the network on a separate telephone connection prior to authorizing the user to access the selected destination point. An on-the-fly generated authorized calling line identification is associated with an origination point from which the user initiates the call completion request to enforce access control. The call completion is monitored end-to-end and the resulting telephone session is audited at the signaling and payload levels providing management support personnel with information substantiating the release of the call in case of misuse or intrusion.

Abstract: A system and method provide a call service features in response to call control information conveyed by a monitored bearer channel in a telecommunications network. A bearer channel monitor captures the call control information and relays the information to a call control application server. The call control application server analyzes the call control information, and provides call control instructions to a call control node that operates in the telecommunications network to effect the call service. The call control node serves as one or more virtual switching points in the network to directly control call routing without disconnecting a called or calling party, unless required as part of a service feature. Control from a center of the telecommunications network provides rapid and efficient call control without use of edge devices or duplication of bearer channels in the network.

Abstract: A variety of encoder wheels and encoder wheel sensors are provided to provide precise paper locating capability relative to a printing device in an image forming system.

Abstract: The present invention provides a capability to form an image along a trailing edge of the paper by the use of a trailing edge deletion prevention apparatus capable of manipulating the paper to allow components capable of forming the image to travel in proximity to the paper without obstruction. In various embodiments, the invention involves the use of a biasing member or an interdigitated support element, each providing a trailing edge deletion prevention capability.

Abstract: An apparatus and method are provided for the use of an optical sensor to determine the position of a printing device relative to a piece of paper or a paper-handling surface. The optical sensor reads marks to detect movement and/or direction of movement or spacing of imprints on the paper. Benefits include swath stitching calibration, color to color registration, producing printing device alignment data and generating information for printing device firing signals. The present invention is applicable to a wide field of printing technologies, including, but not limited to, acoustic ink printing, thermal ink jet printing, piezo ink jet printing, ionographic printing and a variety of other printing technologies involving the need for positioning a printing device relative to a piece of paper.

Abstract: An apparatus and method are provided for the use of an optical sensor to determine the position of a printing device relative to a piece of paper or a paper-handling surface. The optical sensor reads marks to detect movement and/or direction of movement or spacing of imprints on the paper. Benefits include swath stitching calibration, color to color registration, producing printing device alignment data and generating information for printing device firing signals. The present invention is applicable to a wide field of printing technologies, including, but not limited to, acoustic ink printing, thermal ink jet printing, piezo ink jet printing, ionographic printing and a variety of other printing technologies involving the need for positioning a printing device relative to a piece of paper.

Abstract: A collaboration services suite is adapted to support a plurality of integrated telecommunications services accessed by geographically dispersed team members using a virtual team environment (VTE) client that generates a graphical user interface (GUI) for each of the respective team members. Communications sessions are automatically set up by the collaboration services suite in response to request messages generated by the VTE client when a team member initiates a communications session request using the GUI. Team members require no knowledge of another team member's communications device address in order to initiate a communications session. The collaboration services suite includes a VTE server that communicates with the VTE clients, a presence engine that collects and maintains a status of communications devices specified in a current profile of the team member; and, a call server for handling setup and control of a voice component of each communications session completed.

Abstract: A collaboration services suite is adapted to support a plurality of integrated telecommunications services accessed by geographically dispersed team members using a virtual team environment (VTE) client that generates a graphical user interface (GUI) for each of the respective team members. Communications sessions are automatically set up by the collaboration services suite in response to request messages generated by the VTE client when a team member initiates a communications session request using the GUI. Team members require no knowledge of another team member's communications device address in order to initiate a communications session. The collaboration services suite includes a VTE server that communicates with the VTE clients, a presence engine that collects and maintains a status of communications devices specified in a current profile of the team member; and, a call server for handling setup and control of a voice component of each communications session completed.

Abstract: Apparatus and method for controlling picture quality in a transfuse xerographic machine has independent velocity control of image transfer and transfuse belts or rollers when they are disengaged from each other and a common velocity control when they are engaged with each other. The machine can be a monochrome or color copier or printer. Various rollers can be the drive and/or the encoder rollers.

Abstract: A collaboration services suite is adapted to support a plurality of integrated telecommunications services accessed by geographically dispersed team members using a virtual team environment (VTE) client that generates a graphical user interface (GUI) for each of the respective team members. Communications sessions are automatically set up by the collaboration services suite in response to request messages generated by the VTE client when a team member initiates a communications session request using the GUI. Team members require no knowledge of another team member's communications device address in order to initiate a communications session. The collaboration services suite includes a VTE server that communicates with the VTE clients, a presence engine that collects and maintains a status of communications devices specified in a current profile of the team member; and, a call server for handling setup and control of a voice component of each communications session completed.

Abstract: A collaboration services suite is adapted to support a plurality of integrated telecommunications services accessed by geographically dispersed team members using a virtual team environment (VTE) client that generates a graphical user interface (GUI) for each of the respective team members. Communications sessions are automatically set up by the collaboration services suite in response to request messages generated by the VTE client when a team member initiates a communications session request using the GUI. Team members require no knowledge of another team member's communications device address in order to initiate a communications session. The collaboration services suite includes a VTE server that communicates with the VTE clients, a presence engine that collects and maintains a status of communications devices specified in a current profile of the team member; and, a call server for handling setup and control of a voice component of each communications session completed.

Abstract: A collaboration services suite is adapted to support a plurality of integrated telecommunications services accessed by geographically dispersed team members using a virtual team environment (VTE) client that generates a graphical user interface (GUI) for each of the respective team members. Communications sessions are automatically set up by the collaboration services suite in response to request messages generated by the VTE client when a team member initiates a communications session request using the GUI. Team members require no knowledge of another team member's communications device address in order to initiate a communications session. The collaboration services suite includes a VTE server that communicates with the VTE clients, a presence engine that collects and maintains a status of communications devices specified in a current profile of the team member; and, a call server for handling setup and control of a voice component of each communications session completed.

Abstract: A collaboration services suite is adapted to support a plurality of integrated telecommunications services accessed by geographically dispersed team members using a virtual team environment (VTE) client that generates a graphical user interface (GUI) for each of the respective team members. Communications sessions are automatically set up by the collaboration services suite in response to request messages generated by the VTE client when a team member initiates a communications session request using the GUI. Team members require no knowledge of another team member's communications device address in order to initiate a communications session. The collaboration services suite includes a VTE server that communicates with the VTE clients, a presence engine that collects and maintains a status of communications devices specified in a current profile of the team member; and, a call server for handling setup and control of a voice component of each communications session completed.

Abstract: A non-linear control (NLC) system for controlling performance of a device. The NLC system comprises a controller system and a first feedback compensator connected to the controller. The first feedback compensator compensates for linear error performance of the device; the second feedback compensator compensates for non-linear error performance of the device.

Abstract: An enhanced application switched telephone network and a method of completing calls using the network are described. In the enhanced application switched telephone network, every switching office is connected to at least one enhanced ISUP voice-grade trunk. A link set and a route set associated with the enhanced trunk route common channel signaling messages associated with calls directed to the enhanced trunk(s) to a call control node. The call control node is thereby enabled to exercise control over those calls. The advantages include point of origin call control, enhanced application service development, rapid service deployment and significantly more efficient use of PSTN facilities.

Abstract: Apparatus and method for controlling picture quality in a transfuse xerographic machine has independent velocity control of image transfer and transfuse belts or rollers when they are disengaged from each other and a common velocity control when they are engaged with each other. The machine can be a monochrome or color copier or printer. Various rollers can be the drive and/or the encoder rollers.

Abstract: A copy machine having a high accuracy sheet registration system for precise placement of images on each copy sheet. The copy machine includes sensors with charge coupled devices (CCDs) that detect the sheet positions in two dimensions within the machine, and detect sheet arrival times at various positions with the machine. Using this detected information, the copy machine employs a multi-stage process to bring the sheet into contact with a color image moving on a photoreceptor belt, in synchronism with the position and speed of the image on the belt. The copy machine also monitors its own condition and makes predictions about needed preventive maintenance, to instruct personnel to service the machine before the machine fails.

Abstract: A method and system for using TCAP signaling for improved call setup from a virtual switching point are disclosed. In accordance with the method, TCAP signaling is used to enhance call setup from virtual switching points which receive call request messages from calling parties using a facility on a data network such as the Internet. TCAP signaling is used when necessary to determine the availability of the called party telephone. The system includes a Virtual Switching Point (VSP) in a switched telephone network having a connection to a data network such as the Internet. Call requests are received by the VSP from the data network and processed by the VSP to establish a voice connection between the calling party which initiates the call request and a called party number indicated in the call request message. The use of TCAP signaling from the VSP to Switching Points (SPs) which serve the calling party and/or the called party improves efficiency and minimizes common channel signaling.

Abstract: A method, apparatus and system for dynamically routing selected calls through an intelligent switched telephone network are described. The method leverages the resident switching power in the Public Switched Telephone Network by departing from the Advanced Intelligent Network (AIN) call model while adhering to the basic principles of ISUP common channel signaling to introduce new flexibility in call routing. Using the method, calls can be efficiently routed and rerouted through the network. Control of a call can be effected by either the called party or the calling party. The method can be practised using either a virtual switching point (VSP) or an ISTP. The VSP is a physical mode in the signaling plane of the network and a virtual node in the switching plane. Calls are routed to the VSP using dedicated trunk groups which may be loop-back ISUP trunks or inter-switch ISUP trunks. Calls are routed to the dedicated trunk groups using standard routing translation tables and methods.