Abstract: A phacoemulsification system includes a phacoemulsification handpiece including a cutting tip ultrasonically vibrated by an ultrasonic transducer. A power supply is provided for driving the ultrasonic transducer at a resonant frequency of the transducer and cutting tip and varying power to the transducer, in response to loading of the cutting tip, by phase shifting drive signals to the resonant converter which supplies power to the transducer.

Abstract: Intermittent miscounts generated by counters used in a phase-locked loop (“PLL”) are precisely measured by detecting changes to a predetermined waveform, such as a sawtooth waveform. The miscounts are detected using an open loop, not closed loop, set-up which comprises two separate signal generators feeding two separate frequencies into MAIN and REF counters of a PLL. Offsetting the frequencies slightly and integrating an output generates the predetermined waveform. Thereafter, miscounts can be detected by comparing waveforms corresponding to miscounts to theoretically predicted, predetermined waveforms.

Abstract: Method and apparatus are described for a variable force solenoid for controlling the flow of a fluid in a housing having a bore for receiving the fluid flow, at least one port for exhausting the fluid flow, and a seat extending between the port and the bore. The solenoid includes a valve member disposed in the housing. In a closed position, the valve member is engaged with the seat, preventing fluid flow from the bore to the port. In an open position, the valve member is not engaged with the seat, allowing fluid flow from the bore to the port. A subassembly is disposed in the housing and surrounds a portion of the valve member for moving the valve member to its closed position. The subassembly has a movable armature for engaging the valve member, an annular member for attracting the armature, and a gap defined between the armature and the annular member. The gap is maintained by engagement of the armature by the valve member. A coil is disposed in the housing radially outward from the subassembly.

Abstract: A normally closed, three-way valve comprises a housing having a supply passage, a control passage, and an exhaust passage. A valve assembly controls communication between the passages. The valve assembly includes a valve in the supply passage to open and close communication between the supply and control passages. The valve assembly also includes a second valve in the exhaust passage to open and close communication between the control and exhaust passages. The supply passage valve is normally held closed by the pressure of hydraulic fluid in the supply passage. A solenoid, when activated, moves the exhaust passage valve to closed position. A pintle between the two valves is shifted in one direction by the closing of the exhaust passage valve to open the supply passage valve against the pressure of fluid in the supply passage. The pintle is shifted in the opposite direction by the supply passage valve when the solenoid is de-activated, to move the exhaust passage valve to its open position.

Abstract: Host input to a shared application is blocked while a guest has input control. Patch instructions are written over keyboard and mouse event procedures, which are operating system subroutines defining the normal entry points to the system queue for host mouse and keyboard events generated by host-mouse and keyboard drivers. The patch instructions call a patch subroutine which were written into the host-executed application-sharing program. The patch subroutine is operable to determine whether the host has control to enter the mouse and keyboard events into the system queue. If the host is without input control, the patch subroutine drops the events and replaces the patch instructions to their prior position on the keyboard or mouse event procedures. If the host has input rights, the original keyboard or mouse event code is written over the patch instruction and returned for execution.

Abstract: A normally closed, three-way valve comprises a housing having a supply passage, a control passage, and an exhaust passage. A valve assembly controls communication between the passages. The valve assembly includes a valve in the supply passage to open and close communication between the supply and control passages. The valve assembly also includes a second valve in the exhaust passage to open and close communication between the control and exhaust passages. The supply passage valve is normally held closed by the pressure of hydraulic fluid in the supply passage. A solenoid, when activated, moves the exhaust passage valve to closed position. A pintle between the two valves is shifted in one direction by the closing of the exhaust passage valve to open the supply passage valve against the pressure of fluid in the supply passage. The pintle is shifted in the opposite direction by the supply passage valve when the solenoid is de-activated, to move the exhaust passage valve to its open position.

Abstract: An orthopaedic implant, namely a locking device for anchoring to cortical bone for the fixation of fractures of bone and/or dislocations of joints. The locking device includes a cable, a locking member slidable over the cable, and a spreader member attached to a distal end of the cable. The locking member has an expandable portion that may be expanded when the locking member engages the spreader member. A capturing assembly has a raised portion and a contractible passage therethrough for securably receiving a proximal portion of the cable, and preferably includes a cooperating sleeve and annular-shaped member adapted to contract the contractible passage. The cable and locking device are introduced through a hole in a bone, the locking member is expanded, thereby engaging the distal or far surface of the bone. The capturing assembly is introduced over the cable until the raised portion engages the proximal or near surface of the bone.

Abstract: A measurement system and method for measuring a relative concentration of a first form of a chromophore having a first form and a second form. The method comprises irradiating a tissue sample with light at a plurality of wavelengths within a wavelength range within which the first and second forms of the chromophore provide an overlapping spectral response. A detector is provided that detects spectral data emitted from the tissue. Furthermore, the method comprises determining a first and a second 2d derivative spectrum value, at first and second wavelengths, respectively, within said wavelength range at which the first 2d derivative spectrum value varies with the relative concentration of the first form of the chromophore. A scaled, 2d derivative spectrum value is derived from the first and second 2d derivative spectrum values. A memory stores a correlation which provides the relative chromophore concentration as a function of the scaled, 2d derivative spectrum value.

Abstract: A method and apparatus for synchronizing the display of the output of one or more applications being shared on participating host and guest computers, where the respective areas available for display of the output are unequal. In one embodiment, the host or a guest may alter the output display on the monitor's of all other guest participants. The host issues a command receivable by participating guests to alter the displayed output on the guest monitors corresponding to display output surrounding a point movable within the output display on the host monitor. A guest wishing to alter the output display on other guest monitors issues a request receivable by the host which in turn issues a command to all guests to update their output displays. The guests can be instructed to update the displays on their monitors to display output surrounding a point, movable under control of the requesting guest, within the output displayed on the requesting guest's monitor.

Abstract: A method and apparatus for simplifying active window selection and shared command execution in a computer system generates a menu corresponding to a first application of a plurality of applications which can be executed concurrently in the computer system. The menu identifies a subset of the plurality of applications whose corresponding windows can be made currently active. Additionally, one or more of the subset of applications is installed but is not executing at the computer system. A selection identifying one of the subset of applications is then received, and a window corresponding to the identified one of the subset of applications is made the currently active window. In one embodiment, the menu also includes a set of shared commands which can be executed in the computer system. These shared commands perform the same function for each application of the subset of applications. In this embodiment, upon selection of one of the shared commands from the menu, the selected command is executed.

Abstract: In application sharing, an activation message to one of an application-sharing application and a shared application is monitored. One or both of the application-sharing application and the shared application are supervised by the application-sharing application based on the activation message. In an embodiment, where the activation message calls for one of an activation or deactivation of the shared application, the application-sharing application respectively renders at least a portion of its own graphical user interface in an active or inactive color. An embodiment further prevents deactivation of an application when the activation message is for an activation of the application-sharing application.

Abstract: A method and apparatus for synchronizing viewed information between a first endpoint and a second endpoint of a conferencing environment so that the first and second endpoints display the same location of the viewed information includes one of the endpoints receiving a request to synchronize the viewed information. An identifier of the location to which the document is to be synchronized is also received. The viewed information at the endpoint is then updated to display the identified location. In one embodiment, the first endpoint receives the request to synchronize the viewed information and sends a view synchronization message to the second endpoint. The view synchronization message includes a page identifier corresponding to the identified location and a center point which identifies a location within the page corresponding to the page identifier. Upon receipt of the view synchronization message, the viewed information at the second endpoint is updated to display the identified location.

Abstract: Apparatus (200) for opening the closure flaps (22-25) of a carton (12), for presenting the carton (12) for loading, and for closing the closure flaps (22-25) is disclosed including a carrier (202) which initially receives the carton (12). The carrier (202) carries the carton (12) into a carriage (226), with the carton (12) sandwiched therebetween. The closure flaps (22-25) are opened by a device (242) including fingers (254-257) which are pivoted to an expanded position after their insertion through an opening (27) in the closure flaps (22-25). An elevator (212) raises the carton (12) in the carriage (226) while the carton (12) is still under compression, with suction cups (56,171-173) then being attached to the closure flaps (22-25). The carriage (226) can then be moved to a loading position and back where the closure flaps (22-25) of the loaded carton (12) are fan folded by a device (120). The elevator (212) can then be lowered where the closed carton (12) can be pushed therefrom.

Abstract: A machine (10) for loading product onto trays or the like is shown in the preferred embodiment including paddles (16) pivotally mounted to spaced, horizontally arranged chains (30) located above the conveyor (12). A cam track (46) arranged above the chains (30) is engaged by cam followers (48) mounted on the paddles (16). The chains (30) are mounted at an angle relative to the conveyor (12). The paddles (16) are moved by the chains (30) to move longitudinally at the same speed as the product on the conveyor (12) while being held parallel to the movement direction of the conveyor (12) by the followers (48) engaging the cam track (46) to thus simultaneously move laterally across the conveyor (12) to push product located intermediate lugs (14) on the conveyor (12).

Abstract: An electromagnetic variable force motor circuit comprising a solenoid including a coil, a pole piece associated with the coil and a ball armature. A spring urges the ball armature toward a first seat and away from the pole piece. A first chamber is provided adjacent the first seat, the ball armature and the first seat define a first orifice extending between the ball armature and the first chamber. A first passage provides supply pressure to the first chamber. A second orifice is provided in the first passage. A valve including a movable member responsive to fluid pressure is provided in the first chamber. A second passage provides supply pressure to the valve. A third passage provides control flow from the valve device. A fourth passage provides exhaust flow from the first chamber when the ball armature is moved away from the first seat such that the ball armature controls flow through the first orifice to the fourth passage upon excitation of the coil.

Abstract: A machine for loading articles such as milk cartons in a crate and stacking the crates for transport is described. The crate has folding sides. A supply of crates stacked in folded condition is introduced into the machine. The crates are removed individually from the stack by the machine, the sides are raised, and the crates are arranged vertically on a conveyor in preparation to receive the filled cartons. Cartons are inserted into a crate, which is then banded by a plastic strip, and the crate is placed in a stack with other crates that have been filled with cartons. The stack of filled crates is then unloaded from the machine.

Abstract: A device (10) for metering containers (14) for use in packaging machines is disclosed as including a pin system (11) which is pivotally mounted about its drive shaft (22) relative to a conveyor (54). Pin system (11) includes a driven flexible member in the form of cross bars (16) mounted to a roller chain (18) in a generally elliptically shaped endless loop, with the pins (12) extending form the cross bars (16) and being operatively attached to cam followers (20) thereby. The elliptically shaped endless loop is supported by a cam support (24) extending between drive and idler sprockets (28, 32) for continuously changing the pitch angles of the pins (12) along a portion of the endless loop.

Abstract: A precision fluid measuring apparatus is provided which is simple to operate and manufacture, but which permits precise measurement of fluid quantities in a closed system. A flow passageway is defined by a conduit having three sets of apertures wherein the first set of apertures is located at one end of the conduit and the other two sets of apertures are located at the other end of the conduit. A blocking member is positioned in the flow passageway of the conduit and between the second and third sets of apertures. An envelope is provided which surrounds the three sets of apertures and which is slidable along the conduit between an upstream and a downstream position. Collars are provided which seal the first set of apertures and the second set of apertures when the envelope is in the downstream position. The collars provide a hermetic seal between the envelope and the conduit.

Abstract: An upper track roller mechanism for a vehicle sliding door. The upper track lies in a plane canted upward at an acute angle defined by the door opening upper sill panel. A roller support guide link is hinged on the door adjacent its upper forward corner for vertical movement about a horizontally disposed longitudinally extending axis. The guide link has an arm portion with a track roller pivot pin adjacent its free end such that the axis of the pin is substantially perpendicular to the arm. The roller is operative with the track configuration to pivot the guide link to an upwardly inclined door closed position wherein the link profile is contoured to the vehicle door opening upper body sill trim panel.