Abstract: A method and apparatus for performing complex mathematical calculations. The apparatus includes a multicore processor 10 where the cores 15 are connected 20 into a net with the processors on the periphery 15a primarily dedicated to input/output functions and distribution of tasks to the central processors 15b-h of the net. The central processors 15b-h perform calculations substantially simultaneously, far exceeding the speed of conventional processors. The method 100, which may be implemented by an instruction set to the processor nodes, informs the processor nodes how to divide the work and conduct the calculations. The method includes steps dividing the data into subsets 110 directing the subsets to predetermined nodes 115, performing the calculations 120 and outputting the results 125.

Abstract: A method and apparatus for correlation of a received DSSS signal with a PN sequence, thus significantly reducing the processing time and operating power needed to acquire phase information for DSSS de-spreading and demodulation. The apparatus utilizes a multiprocessor array 10. In one embodiment, multiple processors 15 are located on a single-die 25, connected by single drop busses 20 to form low-operating-power apparatus. The method provides for fast sequential correlation of a received digital signal. In an alternate embodiment, the present invention is a single-die, low-operating-power apparatus and method for fast parallel correlation of a received digital signal. In yet another alternate embodiment, the present invention is a single-die, low-operating-power apparatus and method for fast correlation of a received digital signal using a hybrid of parallel and sequential methods.

Abstract: A method and apparatus for performing complex mathematical calculations. The apparatus includes a multicore processor 10 where the cores 15 are connected 20 into a net with the processors on the periphery 15a primarily dedicated to input/output functions and distribution of tasks to the central processors 15b-h of the net. The central processors 15b-h perform calculations substantially simultaneously, far exceeding the speed of conventional processors. The method 100, which may be implemented by an instruction set to the processor nodes, informs the processor nodes how to divide the work and conduct the calculations. The method includes steps dividing the data into subsets 110 directing the subsets to predetermined nodes 115, performing the calculations 120 and outputting the results 125.

Abstract: Multiple antenna wireless communication systems require accurate knowledge of the transfer function between all paths. This invention discloses a system wherein a test signal generator at a transmitter station and a facsimile generator at a receiver station go through an acquisition and tracking process which aligns the two signals, removing errors in the time base of generation, the frequency offset of generation and the time of arrival, so that a logical processor can compute the frequency transfer function of propagation pathways between the multiple input and multiple output antennas. In turn, these channel measurements are used in an adaptive, concurrently sent communication signal.

Abstract: A test signal generator at a transmitter station and a facsimile generator at a receiver station go through an acquisition and tracking process which aligns the two signals, removing errors in the time base of generation, the frequency offset of generation and the time of arrival, so that a logical processor can compute the frequency transfer function of the entire propagation path for use in an adaptive, concurrently sent communication signal. The frequency transfer function is conveyed back to the transmit end via a control channel permitting an adaptivity function at the transmit end to influence subsequent selection of communication parameters, among which are typically transmitted data rate, selection of modulation, selection of forward error correcting coding, and selection of frequency band for transmission.

Abstract: A test signal generator at a transmitter station and a facsimile generator at a receiver station go through an acquisition and tracking process which aligns the two signals so that a logical processor can compute the frequency transfer function of the entire propagation path for use in an adaptive, concurrently sent communication signal. The frequency transfer function is conveyed back to the transmit end via a control channel permitting an adaptivity function at the transmit end to influence subsequent selection of communication parameters, among which are typically transmitted data rate, selection of modulation, selection of forward error correcting coding, and selection of frequency band for transmission. The same measurement is conveyed to an adaptivity function at the receive end for use in the communications receiver to select demodulator variables such as gain control, and equalization of amplitude and phase, versus frequency.

Abstract: A test signal generator at a transmitter station and a facsimile generator at a receiver station go through an acquisition and tracking process which aligns the two signals so that a logical processor can compute the frequency transfer function of the entire propagation path for use in an adaptive, concurrently sent communication signal. The frequency transfer function is conveyed back to the transmit end via a control channel permitting an adaptivity function at the transmit end to influence subsequent selection of communication parameters, among which are typically transmitted data rate, selection of modulation, selection of forward error correcting coding, and selection of frequency band for transmission. The same measurement is conveyed to an adaptivity function at the receive end for use in the communications receiver to select demodulator variables such as gain control, and equalization of amplitude and phase, versus frequency.