Richard O Berard, 54Woonsocket, RI

4769816, Sep 6, 1988

Nov 8, 1985

6/796344

Gary H. Hochstadt - Framingham MA
Robert G. Curtis - Sudbury MA
Richard G. Berard - Chelmsford MA

Raytheon Company - Lexington MA

H04J 306

370100

A receiver including two optimizers for demodulation, sampling and quantization of received QPSK digital data. One optimizer adjusts the phase of a reference signal used for demodulating the QPSK data into baseband in-phase and quadrature channels and another optimizer adjusts a sampling clock used to sample and quantize the baseband channels. The reference signal and the sampling clock are dithered in quadrature. Variations in the amplitude of the quantized data extracted by an eye quality monitor. Each optimizer multiplies the eye quality monitor output by a corresponding dither clock and integrates to form an error signal. Phase shifters, responsive to corresponding error signals and dithered clocks, adjust the phase of the demodulation reference signal and sampling clock. The data quality signal monitor translates the magnitude of the quantized data signals to a common set of signals for each state of the data signal. These common signals are translated into a voltage representing the degree to which the data signal amplitude corresponds to a predetermined value.

6122178, Sep 19, 2000

Nov 25, 1997

8/978237

Macdonald J. Andrews - East Douglas MA
Richard G. Berard - Chelmsford MA
Arnold E. VanDoren - Sterling MA

Raytheon Company - Lexington MA

H05K 714

361800

A PCMCIA electronics package adapted to enclose, and provides EMI shielding to, a printed circuit board (PCB). The PCB has an electrical connector adapted for plugging into a computer is at a one end and RF circuitry at the other end. Electronic components are disposed on an inner region of the surfaces of the PCB. The PCB has a ground plane conductor disposed therein. Electrically conductive strips are disposed on the surfaces of the PCB along opposing side edges and the other end of the PCB. A plurality of conductive vias pass through a portion of the PCB electrically connecting the electrical strip conductors to the ground plane conductor. A plurality of resilient, electrically conductive clips is provided. Each one of the clips has: a cup-shaped region disposed over a corresponding one of the PCB edges and the other end of the PCB. Side portions of the cup-shaped regions are in contact with conductive strips.