Abstract: ‘Pontovia’ is a distinctive variety of Liriope gigantea which is characterized by the combination of: foliage variegation ranging from gold striations at and near the leaf margins with lime-green striations concentrated at or near the leaf midrib in immature foliage, to near-silver striations at and near the leaf margins with dark green striations concentrated at and near the leaf midrib in mature foliage and varying amounts of each color at intermediate stages of leaf development; dark violet flowers; and taller inflorescences.

Abstract: The invention relates to an arrangement for high-frequency opaque shielding of walls, or portions thereof, of a housing, wherein the walls or their portions include a plate-form basic element (12) having a shielding function, with, if appropriate, wall prongs (16) projecting from these into the housing, and wherein in at least one side margin region (14) extending perpendicularly to the front face (18) of the basic element, extend a first groove (20) with sidewall (24, 26) disposed in the proximity of or remote from the front face as well as a groove bottom (28) into which a first prong (42), U-form in section, of a spring element (40) can be emplaced which with a further prong (48) extends in regions along the side margin region.

Abstract: A signal conditioning and signal power amplification system with digital signal attenuation and signal amplification with signal modification by clipping and filtering followed by pulse width modulation. The signal is then amplified and demodulated to generate similar signals in sequence which provide an amplified regenerated signal. A timer system is provided to sequence the phase of signal conditioning and amplification which adds an adjustable dead band to prevent destructive enforcement of the signal.

Abstract: A signal amplifier device providing output power independent of change in output characteristics or common mode interference including a signal input source to provide an input signal, a first power supply and second power supply having a transformer with a secondary coil and a reference power, first differential amplifier powered by the first power supply to receive the input signal and provide first and second complementary output signals, first and second output amplifiers driven by the reference power supply and each having an input to receive one of the first and second signals and amplify same to provide first and second output signals at the respective outputs so that upon imposition of a transient signal at the output of one of the first and second output amplifiers an isolation network prevent the transient signal from appearing as a differential signal on either output.

Abstract: A multiple program input audio system including a plurality of input channels each adapted to provide an output program signal. Each channel comprises an actuator which compares a rectified program signal with a reference signal and generates an actuator output signal when the rectified signal is greater than the reference signal. A zero crossing detector also receives the program signal and generates an initiator pulse when the voltage of the program signal is zero. A master control switch receives the actuator output signal and generates a first master control output signal when pulsed by the initiator pulse and generates a second master control output signal when no signal is received from the actuator. A program switch receives the program signal and in response to the first master control output signal applies the program signal to an audio program buss where the program signals from all the channels are summed and applied to a digital attenuator.

Abstract: A low impedance digital attenuator to selectively attenuate an alternating current composite program signal composed of output program signals from different input channels in accordance with the number of active input signals where each input channel includes an input channel control device to provide an actuating signal when the channel is in selected operating mode and a program output signal. The actuating signals of the channels are summed and converted to a digital signal. The digital signal is supplied to a converter to generate a digital control signal where the relationship between the digital signal and the digital control signal is nonlinear. First and second digital to analog converters are provided to receive the digital control signal and a reference signal. The first digital to analog converter attenuates the composite program signal as a function of the digital control signal and provides an attenuated composite program signal.

Abstract: ‘Pontovia’ is a distinctive variety of Liriope gigantea which is characterized by the combination of: foliage variegation ranging from gold striations at and near the leaf margins with lime-green striations concentrated at or near the leaf midrib in immature foliage, to near-silver striations at and near the leaf margins with dark green striations concentrated at and near the leaf midrib in mature foliage and varying amounts of each color at intermediate stages of leaf development; dark violet flowers; and taller inflorescences.