Abstract: Enhanced reception in a communication system is achieved by synchronously combining transmissions from a cluster of transmitting communication devices at a group of distant receiving communication devices. The transmitting communication devices coordinate their transmissions such that each device transmits the same signal on the same communication channel at different transmission times. As a consequence of the spatial diversity of the transmitting and receiving communication devices and the temporal diversity of the transmission times, the transmitted signals arrive at the receiving communication devices at different times. The receiving communication devices each essentially treat the different transmitted signals as though they were different multipath signals from a single transmitting communication device. This permits detection at a greater range or with a lower bit error rate.

Abstract: The invention is generally directed to the novel and unique modular implant that provides an improved surface for interfacing with an external prosthesis. The implant includes a stem, an optional extension member connected to the stem, a prosthetic condyle, or in the case of application to other levels of cut bone amputations, a location-specific terminal shape, connected to the extension member. The stem is inserted directly into the canal of the bone and tissue, including muscle, is attached directly to the prosthetic and the stem is inserted directly into the canal of the bone. The simulated anatomically correct condyle better distributes the load of the patient's weight and avoids twisting thereby relieving pain to improve the functional connection between the residual limb and an external prosthesis in all levels of upper and lower extremity amputations.

Abstract: Enhanced reception of transmitted signals in a communication system is achieved by synchronously combining transmissions from a cluster of transmitters at a distant receiver. The transmitters coordinate transmissions such that each substantially simultaneously transmits the same signal on the same communication channel. As a consequence of the spatial diversity of the transmitters, the transmitted signals arrive at the receiver at different times. The receiver essentially treats the different transmitted signals as though they were different multipath signals from a single transmitter. A multipath equalizer or combiner is used to determine timing offsets among the received signals, and the received signals are time aligned by phase rotating the signals in accordance with the estimated timing offsets. The time-aligned signals are then coherently combined and detected.