Ronald S Posner

US Patent:

6480164, Nov 12, 2002

Filed:

Aug 2, 2001

Appl. No.:

09/921336

Inventors:

Ronald S. Posner - Ocala FL 34470
Leslie D. Spivey - Summerfield FL 34491
Tore N. Anderson - Brookfield CT 08804

International Classification:

H01Q 1300

US Classification:

343772, 343911 R

Abstract:

An apparatus for broadening the radiation pattern of a waveguide horn includes an input waveguide feed including a non-circular waveguide horn having a non-circular aperture, and a dielectric lens shaped as a toroid having an interior opening and an outside circumference, the toroid being cut along an imaginary plane extending generally parallel to a diameter of the toroid and being positioned generally coaxially adjacent the non-circular aperture.

US Patent:

43896715, Jun 21, 1983

Filed:

Sep 29, 1980

Appl. No.:

6/191844

Inventors:

Ronald S. Posner - Indian Harbor Beach FL
Charles R. Burr - Palm Bay FL
David K. Campbell - Melbourne Beach FL

Assignee:

Harris Corporation - Melbourne FL

International Classification:

H04N 716

US Classification:

358124

Abstract:

An apparatus for scrambling a television signal in which horizontal lines of the transmitted television picture are selectively inverted in accordance with the state of a pseudorandom noise generator. In order to permit correction of the throughput gain as well as the throughput offset at the receiving end of the communication link so as to obtain a desired level of picture quality, particularly in a satellite communication system, an analog calibration signal representing both black and white levels is inserted into a horizontal line of the vertical retrace interval at the transmission end of the link. This calibration signal is then detected at the receiving end of the link and the signal levels are adjusted as needed. In addition, a randomly-varying key code signal for resetting the pseudorandom noise generator is randomly inserted into another horizontal line of the vertical retrace period to control scrambling. The audio portion of the television signal is also scrambled by randomly shifting the audio carrier between first and second offset frequencies.