Abstract:
A user-actuated lighting effect device, to provide a lighting effect for a performer during a performance, includes lower and upper portions. The lower portion has an upper surface with a plurality of devices thereat. The upper portion has a first surface. The upper portion is placeable in (1) a closed state with the first surface directly overlying the upper surface, and (2) an open state with the first surface being in an upwardly facing orientation not overlying the upper surface to provide overhead access to the plurality of devices. The upper portion can be pivotally mounted to the lower portion for movement between the open and closed states.
Abstract:
A user-actuated lighting effect device includes a housing, a light-generating lamp coupled to the housing, a power source, and a control circuit. The control circuit includes a user-actuated switch operably coupling the lamp and the power source. The lamp creates a lighting effect on or near the user when the first switch is on. The housing can be mounted in a use orientation on a pedal board. The lamp can create an upwardly directed lighting effect. An operational mode can be selected using a lighting mode switch.
Abstract:
A user-actuated lighting effect device, to provide a lighting effect for a performer during a performance, includes lower and upper portions. The lower portion has an upper surface with a plurality of devices thereat. The upper portion has a first surface. The upper portion is placeable in (1) a closed state with the first surface directly overlying the upper surface, and (2) an open state with the first surface being in an upwardly facing orientation not overlying the upper surface to provide overhead access to the plurality of devices. The upper portion can be pivotally mounted to the lower portion for movement between the open and closed states.
Abstract:
A short range, high resolution, radar system of particular use in training radar operators. The system transmits very short pulses of a radio-frequency (RF) signal at a very high pulse repetition frequency, PRF.sub.o. A signal pre-processor samples a received baseband radar signal and generates a time-expanded signal which is a replica of the real received radar signal, but with a much lower nominal pulse repetition frequency, PRF.sub.n. The signal pre-processor includes a sampling circuit which receives the baseband signal, and a timing circuit which controls the sampling circuit. The timing circuit operates by causing samples of the baseband signal to be taken at progressively later portions of subsequent pulses. While the radar system is particularly useful in demonstrating radar principles in a classroom setting, it has other applications.
Abstract:
A user-actuated lighting effect device, to provide a lighting effect for a performer during a performance, includes lower and upper portions. The lower portion has an upper surface with a plurality of devices thereat. The upper portion has a first surface. The upper portion is placeable in (1) a closed state with the first surface directly overlying the upper surface, and (2) an open state with the first surface being in an upwardly facing orientation not overlying the upper surface to provide overhead access to the plurality of devices. The upper portion can be pivotally mounted to the lower portion for movement between the open and closed states.
Abstract:
A user-actuated lighting effect device includes a housing, a light-generating lamp coupled to the housing, a power source, and a control circuit. The control circuit includes a user-actuated switch operably coupling the lamp and the power source. The lamp creates a lighting effect on or near the user when the first switch is on. The housing can be mounted in a use orientation on a pedal board. The lamp can create an upwardly directed lighting effect. An operational mode can be selected using a lighting mode switch.
Abstract:
A user-actuated lighting effect device includes a housing, a light-generating lamp coupled to the housing, a power source, and a control circuit. The control circuit includes a user-actuated switch operably coupling the lamp and the power source. The lamp creates a lighting effect on or near the user when the first switch is on. The housing can be mounted in a use orientation on a pedal board. The lamp can create an upwardly directed lighting effect. An operational mode can be selected using a lighting mode switch.
Abstract:
Devices, delivery systems and techniques for an occlusion device for the closure of physical anomalies, such as an atrial septal defect, a patent foramen ovale (PFO), and other septal and vascular defects are described. The devices, delivery systems and techniques relate to, but are not limited to, a patent foramen ovale (PFO) occluder made from a substantially cylindrical form. An occluder having a distal side and a proximal side, with a catch system for securing the deployed configuration, is introduced into the treatment site by a delivery sheath. In one aspect, the occluder has an adjustable length center joint that allows the device to fit a particular septal defect. In some embodiments, the occluder includes a catch member that holds the occluder in the deployed, expanded profile configuration. In one aspect, the catch member also has an adjustable length.
Abstract:
A user-actuated lighting effect device includes a housing, a light-generating lamp coupled to the housing, a power source, and a control circuit. The control circuit includes a user-actuated switch operably coupling the lamp and the power source. The lamp creates a lighting effect on or near the user when the first switch is on. The housing can be mounted in a use orientation on a pedal board. The lamp can create an upwardly directed lighting effect. An operational mode can be selected using a lighting mode switch.