Abstract: A universal frequency translation module (UFT) frequency translates an electromagnetic (EM) input signal by sampling the EM input signal according to a periodic control signal (also called an aliasing signal). By controlling the relative sampling time, the UFT module implements a relative phase shift during frequency translation. In other words, a relative phase shift can be introduced in the output signal by sampling the input signal at one point in time relative to another point in time. As such, the UFT module can be configured as an integrated frequency translator and phase-shifter. This includes the UFT module as an integrated down-converter and phase shifter, and the UFT module as an integrated up-converter and phase shifter. Applications of universal frequency translation and phase shifting include phased array antennas that utilize integrated frequency translation and phase shifting technology to steer the one or more main beams of the phased array antenna.

Abstract: A universal frequency translation module (UFT) frequency translates an electromagnetic (EM) input signal by sampling the EM input signal according to a periodic control signal (also called an aliasing signal). By controlling the relative sampling time, the UFT module implements a relative phase shift during frequency translation. In other words, a relative phase shift can be introduced in the output signal by sampling the input signal at one point in time relative to another point in time. As such, the UFT module can be configured as an integrated frequency translator and phase-shifter. This includes the UFT module as an integrated down-converter and phase shifter, and the UFT module as an integrated up-converter and phase shifter. Applications of universal frequency translation and phase shifting include phased array antennas that utilize integrated frequency translation and phase shifting technology to steer the one or more main beams of the phased array antenna.

Abstract: Methods, systems, and apparatuses for down-converting an electromagnetic (EM) signal by aliasing the EM signal, and applications thereof are described herein. Reducing or eliminating DC offset voltages and re-radiation generated when down-converting an electromagnetic (EM) signal is also described herein. Down-converting a signal and improving receiver dynamic range is also described herein.

Abstract: A method and an apparatus for minimizing latency in digital signal processing paths. One example is an active noise cancellation device. The system includes a digital closed feedback loop having a forward path and a feedback path. The forward path includes a compensation filter, a digital-to-analog converter, and an output transducer. The feedback path includes an input transducer, a feedback delta-sigma modulator, and a feedback sampling-rate converter. An input signal is processed in one of several ways into a processed digital input signal having a preselected intermediate sampling rate. Through the feedback path, an analog output signal is processed into a digital feedback signal having substantially the same preselected intermediate sampling rate. The processed digital input signal and the digital feedback signal are combined and processed through the forward path to produce an anti disturbance signal that is combined with a disturbance signal to form the analog output signal.

Abstract: Methods, systems, and apparatuses for down-converting an electromagnetic (EM) signal by aliasing the EM signal, and applications thereof are described herein. Reducing or eliminating DC offset voltages and re-radiation generated when down-converting an electromagnetic (EM) signal is also described herein. Down-converting a signal and improving receiver dynamic range is also described herein.

Abstract: A novel class of macrocycles, termed triazatrinaphthyrins, is disclosed having general Formula I: 1

Abstract: A novel class of macrocycles, termed triazatrinaphthyrins, is disclosed having general Formula I: or a solvate, hydrate, ester or salt thereof; wherein R1, R2, R3, Ra, Ra′, Ra″, Rb, Rb′, Rb″, Rc, Rc′, Rc″, Rd, Rd′ and Rd″ are defined in the specification. The macrocycles are useful in the extraction of transition metals, in particular in the extraction of lanthanides.

Abstract: A universal frequency translation module (UFT) frequency translates an electromagnetic (EM) input signal by sampling the EM input signal according to a periodic control signal (also called an aliasing signal). By controlling the relative sampling time, the UFT module implements a relative phase shift during frequency translation. In other words, a relative phase shift can be introduced in the output signal by sampling the input signal at one point in time relative to another point in time. As such, the UFT module can be configured as an integrated frequency translator and phase-shifter. This includes the UFT module as an integrated down-converter and phase shifter, and the UFT module as an integrated up-converter and phase shifter. Applications of universal frequency translation and phase shifting include phased array antennas that utilize integrated frequency translation and phase shifting technology to steer the one or more main beams of the phased array antenna.

Abstract: The invention relates to indoles of general formula (I) ##STR1## wherein R.sub.0 represents a hydrogen atom or a C.sub.1-3 alkyl group; R.sub.1 represents a group R.sub.4 CONH--, R.sub.4 R.sub.5 NSO.sub.2 --, R.sub.4 SO.sub.2 NH-- or R.sub.4 R.sub.5 NCO-- (where R.sub.4 is a hydrogen atom or a C.sub.1-6 alkyl group, provided that R.sub.4 does not represent a hydrogen atom when R.sub.1 represents R.sub.4 SO.sub.2 NH--, and R.sub.5 is a hydrogen atom or a C.sub.1-6 alkyl, C.sub.3-7 cycloalkyl, phenyl or phen(C.sub.1-3)alkyl group in which the phenyl ring is optionally substituted by a halogen atom or a C.sub.1-4 alkoxy, hydroxy or C.sub.1-3 alkyl group); R.sub.2 is a hydrogen atom, a C.sub.1-3 alkyl, a C.sub.3-6 alkenyl, a phenyl or a phen(C.sub.1-3)alkyl group; R.sub.3 is a hydrogen atom, a C.sub.1-3 alkyl group or a group --CO.sub.2 R.sub.6, --COR.sub.6, --COCO.sub.2 R.sub.6 or --CONHR.sub. 6 where R.sub.6 is a hydrogen atom or a C.sub.1-4 alkyl, a C.sub.3-7 cycloalkyl, a C.sub.

Abstract: Compounds are disclosed of formula (I) ##STR1## wherein R.sub.1 represents a C.sub.1-6 alkyl group;R.sub.2 represents a hydrogen atom or a C.sub.1-3 alkyl group;n represents zero or an integer from 1 to 3;and pharmaceutically acceptable salts thereof.The compounds are useful for the treatment of migraine, cluster headache, chronic paroxysmal hemicrania and headache associated with vascular disorders.Processes and intermediates for their preparation and pharmaceutical compositions containing them are also disclosed.