Abstract: The present invention provides a system and method for communicating data between a source application process and one or more destination application processes. This system and method perform conversion and routing functions which require only a single conversion of all outbound transmissions regardless of the variety of destinations, and only a single conversion of all inbound transmissions regardless of the variety of sources. The functions also enable changes, additions, and deletions of sources and destinations of transmissions to be made without modification of a source or destination application process and without taking a source or destination application process off-line. The functions further enable this system and method to be implemented in virtually any enterprise architecture without requiring that each processing system of the architecture be custom built.

Abstract: A system interactively controlled by a TV viewer remote superimposes portions of a scroll program guide over a basic programming signal for display on the viewer's display screen. A tuner has an input for receiving TV signals in a plurality of cable channels and an output for passing a signal of any selected one of said channels. A computer has an input for receiving any of a plurality of control signals from the TV viewer remote and an output for controlling the tuner to pass the signal of the selected one of the channels in response to one of the plurality of control signals from the TV viewer remote. The computer receives and stores a scroll input picture image signal containing local program guide data and generates a scroll output picture image signal consisting of at least a portion of the scroll input picture image signal. A combiner superimposes output picture image signal over the passed signal to provide a display signal for input to the viewer's display screen.

Abstract: Interactive program guide systems and related processes are provided which can automatically tune a television, or program a VCR, based on program selections made from program schedule information displayed on a television or other suitable video monitor. The interactive program guide is preferably implemented using a microprocessor-controlled set-top box that is coupled to the viewer's television set. The set-top box receives program schedule information and software from a headend telecasting center. Preferably, program schedule information for the current day and at least six subsequent days is stored in a memory within the set-top box. The interactive program guide provides a display mode for allowing the viewer to apply a restrictive search selection criterion and a nonrestrictive sort attribute to the program schedule information.

Abstract: The circuits and methods of the present invention provide rail-to-rail output stages that cancel the non-linear components of the transconductances of transistors used in the output stages, that allow the idling current in the output stages to be controlled by external current sources and device size ratios, and that enable the idling current in the output stages to be maintained independently of manufacturing processes, temperature, and power supply voltages. The output stages generally comprise a complementary subcircuit, a current mirror and an output driver. The output stages receive an input signal and a bias voltage from an external source and responsively produce a push current that feeds current into a load and a pull current that pulls current from the load. When the push current matches the pull current, the output stages are said to be “idling.” The bias voltage controls the idling current.

Abstract: An interactive program guide system is provided. The program guide system has a logically flat navigator menu structure made up of program guide categories and selectable program guide options. Program guide categories correspond to fairly broad groups of program guide features. Selectable program guide options correspond to more specific program guide features. Each program guide category has associated selectable program guide options. Program guide categories may be displayed in a row across the top of the display screen. Selectable program guide options may be displayed in the same column as the program guide category with which they are associated. A highlight region may be positioned on one of the selectable program guide options. The selectable program guide options may be scrolled using a pair of vertical cursors.

Abstract: The circuits and methods of the present invention provide rail-to-rail output stages that cancel the non-linear components of the transconductances of transistors used in the output stages, that allow the idling current in the output stages to be controlled by external current sources and device size ratios, and that enable the idling current in the output stages to be maintained independently of manufacturing processes, temperature, and power supply voltages. The output stages generally comprise a complementary subcircuit, a current mirror and an output driver. The output stages receive an input signal and a bias voltage from an external source and responsively produce a push current that feeds current into a load and a pull current that pulls current from the load. When the push current matches the pull current, the output stages are said to be “idling.” The bias voltage controls the idling current.

Abstract: Emitters for locating an item or person who as in some way become separated from their expected location are provided. The emitters of the present invention comprise a power source, a light emitting means, and a radiowave emitting means, the light emitting means comprising a first and second electrode, a dielectric material and an electroluminescent material being provided between the first and second electrodes, the radiowave emitting means comprising an antenna. The antenna may comprise the first and/or second electrode. The emitter may be a separate unit or may be part of or attached to an item such as a survival suit, a waterproof suit, a wet suit, a dry suit, a diving suit, a coat, a waterproof coat, a harness, a buoyancy item or aid, a life jacket, a life raft, a lifeboat, a floatation aid, a life belt, etc.

Abstract: Circuits and methods for controlling timing and slope compensation in switching regulators are provided. These circuits and methods include a timing control circuit that controls the timing of the switching of one or more switching regulator output stages so that the switching occurs at evenly spaced time intervals, and a slope compensation circuit that produces a slope compensation signal having a waveform that need not match the waveform of any oscillator signal, nor that need have the same period as the oscillator signal. Timing control is performed by dividing a master clock signal using a T flip-flop and a “rolling clock” (or “Johnson counter”) to produce 2N clock phase signals. Slope compensation is provided by generating a slope compensation signal using decoding logic, a digital-to-analog converter (DAC), and an integrator.