An orally administrable and stable solution containing as an active ingredient Methoxasalen (8-methoxyfuro-[3',-2':6,7]-coumarin) of the formula ##STR1## useful in the photochemotherapy of psoriasis, to a process for the preparation thereof and to a process for the use thereof.

In a mounting structure of an antenna switching circuit, a first switching diode is connected between a first conductor pattern and a second conductor pattern, an inductor is connected between the first conductor pattern and a third conductor pattern, a first capacitor is connected between the third conductor pattern and a fourth conductor pattern, and a second switching diode is implemented by a bare chip. The bare chip is mounted on the fourth conductor pattern, a cathode thereof being connect...

An antenna device corresponds to a plurality of radio communications systems and frequency bands, can simultaneously carry out a reception and a transmission of different radio communications systems, and is capable of using antenna diversity by a simple construction. An antenna device comprises a first antenna matching with first, second, and third frequency bands, a second antenna matching with the third frequency band, a diplexer and the like. For signals of the first frequency band, a high-f...

In accordance with the present invention, a receiver circuit and a method of controlling voltage pulses, thereby improving the performance of the receiver are provided. The receiver circuit includes a switch for blocking high voltages and for converting voltage signals to current signals. The switch includes first and second signal terminals and a control terminal. The switch exhibits an ON resistance when closed, wherein the ON resistance is controlled by an electric value at the control termin...

In a pulsed-signal magnetomechanical electronic article surveillance system, a single transmit circuit is used to drive two or more parallel-connected interrogation signal transmitting antennas. One or more switchable damping circuits are provided in series with the antennas to promote rapid damping of the interrogation signal at the end of each signal pulse. The damping circuit or circuits are situated to provide damping in the loop or loops formed by the parallel-connected antennas. Each switc...

A high-frequency switch circuit common to a plurality of frequency bands includes a first high-frequency switch adapted to pass transmission signals and block received signals; and a demultiplexer. The high-frequency switch circuit passes one of the received signals of first and second frequency bands and blocks the other.

A microwave radio assembly is described including a directional antenna wherein the installation and aiming is simplified. The assembly is attached to the wall-mount fix via gimbals mechanism with one rotation axis for azimuth and one for elevation and the assembly preferably includes a sight mechanism including a pair of visual apertures is located in the radio assembly in a line parallel to the radio antenna radiation direction. The radio assembly further includes a modulation cancellation sch...

Methods and apparatus are provided for handling a STUCK-ON microphone push-to-talk (PTT) switch. The apparatus comprises an input device receiving the PTT output, switches for selecting a radio, and a controller that receives this information and determines whether the PTT switch is STUCK-ON. Until STUCK-ON occurs, the controller passes the microphone signal and a PTT initiated TRANSCVER-ON command to the radio causing it to transmit. When STUCK-ON occurs, the state of the PTT switch is ignored ...

A power amplifier for use in wireless communication devices is disclosed that reduces the noise generated at the output of the amplifier in the receive band of the wireless communication device. A resonant circuit is inserted between the base ballast resister and the lumped resister. The resonant frequency of the resonant circuit is adjusted to correspond to the frequency offset between the transmission frequency and the frequency corresponding to the peak noise in the receive band of the commun...

An exemplary embodiment of the present invention described and shown in the specification and drawings is a transceiver with a receiver, a transmitter, a local oscillator (LO) generator, a controller, and a self-testing unit. All of these components can be packaged for integration into a single IC including components such as filters and inductors. The controller for adaptive programming and calibration of the receiver, transmitter and LO generator. The self-testing unit generates is used to det...