International Business Machines Corporation

Other

Grant D Taylor

Kevin Quan

Robert C Ma

Suman Kumar Kalia

John Mourra

Hiroshi Tsuji

Crystal J Su

Anita O L Leung

C Lorne Parsons

A power amplifier is provided. The power amplifier comprises: a universal pulse converter configured to: receive at least one analog input; and modulate an in-phase component of the at least one analog input and a quadrature component of the at least one input signal; a processor configured to process the in-phase and quadrature components, the processor comprising: a clock configured to produce a clock signal; a pulse processor configured to remove non-essential information from the modulated in-phase and quadrature components; and a pulse converter configured to output a control signal based on a selected amplifier class; and a switching network configured to actuate one or more switches based on the control signal to output an amplified signal.

Power amplifier and demodulator

A power amplifier includes an in-phase modulator configured to modulate an in-phase component of an input signal, a quadrature modulator configured to modulate a quadrature component of the input signal, and a processor configured to process the in-phase and quadrature components. The processor includes a clock configured to produce a clock signal, a pulse processor configured to remove non-essential information from the modulated in-phase and quadrature components, and a pulse converter configured to select an amplifier class and output a control signal based on the selected amplifier class. A switching network is also included and configured to actuate one or more switches based on the control signal to output an amplified signal.

There is provided an optical communication system comprising: a transmitter comprising: a modulator configured to output a digital signal representing information to be transmitted; a biaser configured to output a bias level; a drive level controller configured to output a control signal; a switch electrically connected to the modulator, wherein the switch receives the digital signal and a reference voltage set by the control signal; and at least one light emitting diode (LED) electrically connected to the switch and the biaser. The LED is configured to emit light and pulse at varying power levels between the bias level and the reference voltage. The system further comprises a receiver comprising: a detector configured to receive light emitted by the LED and output a detected signal; and a demodulator configured to receive the detected signal and output demodulated information.

Optical communication system, transmitter and receiver

Embodiments of the present invention address deficiencies of the art in respect to tree representations of object hierarchies and provide a method, system and computer program product for large tree view navigation. In an embodiment of the invention, a tree view navigation method can be provided. The method can include selecting a node in a tree view of an object hierarchy, specifying filter text in a filter control for the selected node, and filtering a branch of nodes extending from the selected node to include only nodes including the filter text. In this way, despite a voluminous number of nodes in the branch, relevant nodes can be located flexibly and efficiently.

Large tree view navigation

A volatile memory manager of a data handling system can be configured to convert the one-to-many external reference into an external reference that references the common ancestor node of the contiguous region. Specific pathing and/or termination conditions can be contained in a Relationship_Path parameter of the external reference. The hierarchical data structure can also be loaded into volatile memory by the volatile memory manager as data structure references. The volatile memory manager can be further configured to perform various functions utilizing the external and data structure references.

Optimizing the storage of one-to-many external references to contiguous regions of hierarchical data structures

An apparatus, method, and computer program product are disclosed for enabling user interactions between user interface components. An initial event module detects an initial user input event to a graphical user interface. The initial user input event is associated with a user interaction between a source user interface component and a target user interface component that occupy separate event domains. A transparent component module places a transparent user interface component over the target user interface component in response to the initial user input event. The transparent user interface component occupies the same event domain as the source user interface component. An interaction event module detects an interaction user input event to the transparent user interface component that continues the user interaction. An interaction communication module communicates information of the user interaction to the target user interface component using a communications channel supported by the target user interface component.

Enabling user interactions between user interface components

A method for synchronizing data files, the method comprising: within a messaging utility, associating a Web Service Definition Language (WSDL) definition with a data file, the association made by a passive reference between the WSDL definition to the data file; creating a reference table identifying WSDL files and referenced data files; determining if the WSDL file has changed, if the WSDL file has changed then: determining if a reference to a data file exists in the changed WSDL file; adding an entry in the reference table associating the WSDL file and the data file; launching a component of a builder application to build the data file; and determining if any additional references to data files exist in the changed WSDL file; determining if the data file has changed, if the data file has changed then: determining if the changed data file is referenced by a WSDL file by examining the reference table; if the changed data file exists in the reference table, then launching a component of the builder application to build the WSDL file referencing the changed data file.

Growing community of inventors

Richmond Hill, Canada

Grant D Taylor