JAMES TUCKER DUNN
Pilots at Cedarbrae Ln, San Diego, CA

4488290, Dec 11, 1984

Aug 4, 1982

6/405103

James E. Dunn - San Diego CA
Colin Bradbury - La Jolla CA
Kenneth R. Holmes - La Jolla CA
Stephen W. Treadwell - La Jolla CA

M/A-Com Linkabit, Inc. - San Diego CA

H04Q 1104

370 66

A distributed digital exchange for completing a communications link between a selected originating channel and one or more selected destination channels. The exchange includes an input bus containing a given number of input lines, with each input line for conveying a time-division-multiplexed plurality of time-division-multiplexed input signals, with each data bit position of every frame of each input signal defining a discrete originating channel; a clock system for providing timing signals for defining frames and bit positions corresponding to the frames and bit positions of the input signals; an exchange bus containing at least the given number of lines for conveying the input signals; a novel input processor for receiving the input signals, for synchronizing the input signals in response to the timing signals and for transferring each received plurality of input signals from a selected line of the input bus to a selected line of the exchange bus; an output bus containing at least the given number of output lines, with each output line for conveying a time-division-multiplexed output signal, with each data bit position of every frame of each output signal defining a discrete destination channel; a plurality of novel switching systems, each of which includes circuits for routing data from any selected data bit position in a frame of any selected time-division-multiplexed input signal on a selected line of the exchange bus to one or more selected data bit positions in a frame of any selected time-division-multiplexed output signal; and a controller for controlling the selections.

6963599, Nov 8, 2005

Dec 30, 1992

07/998824

James G. Dunn - San Diego CA, US

ITT Manufacturing Enterprises, Inc. - Wilmington DE

H04B001/69, H04B001/713

375132, 375130, 375135, 375136

An improved spread spectrum communications system is disclosed in which M-ary symbols are defined corresponding to each state of digital data to be transmitted and in which each of those M-ary symbols are represented by a plurality of tones selected from a set of N frequencies. A different plurality of tones out of the set N is established to represent each of the M-ary symbols during each successive timing interval, with selection of the tones comprising each such plurality of tones being determined in accordance with a known coding pattern. Phasing of the tones comprising each such plurality is also determined in accordance with a known coding sequence. After selection of the symbol corresponding to the data to be transmitted during a given timing interval, the frequency domain representation of the plurality of tones corresponding to that symbol is converted to the time domain for transmission. That time domain signal is converted back to the frequency domain by the receiver and the resultant signal processed by M-ary signal correlators synchronized with coding established by the transmitter to determine the transmitted symbol.

4914699, Apr 3, 1990

Oct 11, 1988

7/256342

James G. Dunn - San Diego CA
Bruce Lager - Fort Lee NJ
Dennis McCrady - Holmdel NJ

ITT Corporation - New York NY

H04K 100

380 34

There is disclosed a high frequency communication system of the type employing a high frequency terminal which terminal can transmit a processed signal in a transmitting mode or process a received signal in a receiving mode which terminal includes a first subsystem for voice processing, including a processor responsive to voice signals to provide a linear predictive coded voice signal at a given data rate which signal is coupled to a data modem subsystem that digitally encrypts said voice signal which data modem subsystem is coupled to a modem processor subsystem capable of processing said encrypted signal for providing frequency hopping, feedback equalization, intersymbol interference cancellation, error correction and interleaving to provide a transmitted signal which is relatively immune to jamming during said transmitting mode which includes a convolutional encoder means included in said modem processor subsystem responsive to said encrypted signal to provide a convoluted signal at a higher data rate than said encrypted signal at an output. There is an interleave buffer having an input coupled to said encoder outputs for interleaving said higher data rate signal according to an interleaving algorithm, a symbol encoder having one input responsive to said interleave signal and one input coupled to a source of PN training signals as stored to provide at an output an encoded signal encoded according to said PN signal which PN training signal differs for each transmitting frequency. This signal is then converted to an analog signal and eventually coupled to a transmitting means for transmitting said signal.

4761796, Aug 2, 1988

Jan 24, 1985

6/694549

James Dunn - San Diego CA
Charles Sanford - Iselin NJ
Joseph Kadin - Florham Park NJ

ITT Defense Communications - Nutley NJ

H04L 2730

375 1

The spread spectrum communication system terminal comprises a first subsystem including a first arrangement to encode a locally generally digital data with an error correcting code, a second arrangement for spectrum spreading of the encoded locally generated digital data in at least one mode of operation of the communication system terminal, a third arrangement to receive remotely generated error correcting code encoded digitla data spectrum spread in the one mode of operation and a fourth arrangement to recover the remotely generated digital data. In addition, a second subsystem includes a fifth arrangement frequency hopping the encoded locally generated digital data prior to transmission to a remote location and a sixth arrangement frequency dehopping the encoded remotely generated digital data received from the remote location. A third subsystem is also provided including a seventh arrangement to provide a predetermined signal for spectrum spreading the encoded locally generated digital data in the one mode of operation and to couple the encoded locally generated digital data to the fifth arrangement and an eighth arrangement to provide a reference frequency for the frequency hopping and frequency dehopping and to couple the frequecny dehopped encoded remotely generated digital data from the sixth arrangement to the third arrangement.

5173068, Dec 22, 1992

Oct 22, 1991

7/781492

Daniel R. Dunn - San Diego CA
James L. Dunn - San Diego CA

B63B 3585

441 65

A body surfing apparatus comprising a body ski having a reduced hydrodynamic drag because it is made of smooth semirigid material for streamlining the upper body, and because it maintains its shape and resists local deformation. Certain edges of the ski are curved and located to minimize drag inducing scooping of water during planing. Side portions of the ski are provided to also reduce such scooping. One embodiment also includes thigh skis to increase the low drag planing area in the lower body region.