A forward link transmitter in a sectored cell includes a baseband processor having traditional baseband signal digital processing circuitry in addition to including a digital hybrid matrix (vector and delay compensated transformation module) whose phase and amplitude (vector) and delay may be adjusted to compensate for downstream errors that are introduced and detected by a feedback circuit. Accordingly, the baseband processor, by monitoring an output of an analog hybrid matrix producing modulat...

A ring oscillator for generating an output signal, comprising a plurality of serially connected main elements for selectively delaying a signal input thereto, each of the plurality of main elements having two circuit paths, a first path including at least one time-delay element for delaying a signal input thereto and a second circuit path bypassing the first circuit path; and a multiplexor (MUX) having a first input coupled to the first circuit path including the at least one time-delay element ...

A digitally controlled transconductance cell includes a differential transistor pair coupled to load elements (either passive or active with resistive or impedance loads) and a variable bias current source, where the transconductance or gain is digitally varied by changing the aspect ratio of the transistors and the bias current.

A wavelength selection and, optionally, amplification device that finds utility as an optical filter or laser and is realized using two waveguide grating routers with different free spectral range values.

The bolt of a warp knitting machine is movable longitudinally and is urged by a spring in one direction against a stop. A rotating cam moves the bolt in the opposite direction. A plurality of blocks have an operative position between the cam and bolt and an inoperative position spaced therefrom. Electromagnets are employed to move the blocks from the inoperative to the operative position. The blocks have thicknesses that are digitally related to each other and each is a different digit.

In a digitally controlled grinding machine for working a workpiece including at least one cylindrical portion and at least one tapered portion, there are provided a first grinding wheel supported on a first grinding wheel carriage for working the cylindrical portion and a second grinding wheel supported on a second grinding wheel carriage for working the tapered portion. When the tapered portion of the workpiece is to be ground, a work table for supporting the workpiece and the second carriage a...

Disclosed is a digitally controlled phase shifter which utilizes a phase locked loop to provide a closed loop system for the determination of phase shift. The phase shift at the output is controlled in arbitrarily small increments by adjustment of the division ratio of a digitally controlled variable counter.

A digitally controlled pulse generator whose duty cycle may be rapidly and accurately varied to supply a load with a required amount of power including a data register, a recirculating counter, a coincidence detector connected to the memory unit and the recirculating counter for providing an output signal when the count stored in the memory unit coincides with that in the recirculating counter and a bistable storage element having one input connected to the coincidence detector and a second inpu...

A digitally tuned microwave microstrip oscillator is disclosed. The oscillator includes a resonant section of stripline having a Gunn diode connected between the stripline and ground plane at a low impedance point and having one or more tuning capacitors connected via p-i-n diodes between a high voltage portion of the stripline resonator and the ground plane. Means are provided for selectively biasing one or more of the p-i-n diodes to a conductive state for switching one or more of the tuning c...

A method for digitally measuring waveforms is provided in which absolute and relative amplitudes and time information of electrical signals is electronically determined. A pair of cursors, which are operable in both independent and tracking modes, are used to provide alignment with reference points and selected measurement points so that the voltage difference between the cursors may be utilized by a digital voltmeter to provide the measurement data.