Title of Invention

APPARATUS FOR COMBINED MULTIPLE FREQUENCY SIGNALS.

Abstract The present invention is in the field of filters for electromagnetic signals and relates to the technical problem of separating the components of multiple frequency signals and accurately extracting transmitted data. There is disclosed a method and apparatus for reducing the distortion imposed upon a combined information wave (72) by a receiver filter or other signal processor. The said method involves a step of adjusting the amplitudes of the positive (75) and negative (74) segments of the combined information wave (72) such that the positive (75) and negative (74) segments have preselected and equal amplitudes thereby producing an amplitude adjusted combined information wave (76). The apparatus has an adder circuit for combining the component information waves (70) and the reference wave to form the combined information wave (72), a wave shaper to produce an equalized wave, and a wave multiplier for proportionally adjusting, on a half cycle basis, the amplitudes of the equalized positive and negative segments. The principal use of the invention is in communications and data transfer.
Full Text

Documents:

1061-CAL-1998-CORRESPONDENCE.pdf

1061-CAL-1998-FORM 27.pdf

1061-CAL-1998-FORM-27.pdf

1061-cal-1998-granted-abstract.pdf

1061-cal-1998-granted-claims.pdf

1061-cal-1998-granted-correspondence.pdf

1061-cal-1998-granted-description (complete).pdf

1061-cal-1998-granted-drawings.pdf

1061-cal-1998-granted-examination report.pdf

1061-cal-1998-granted-form 1.pdf

1061-cal-1998-granted-form 18.pdf

1061-cal-1998-granted-form 2.pdf

1061-cal-1998-granted-form 3.pdf

1061-cal-1998-granted-form 5.pdf

1061-cal-1998-granted-gpa.pdf

1061-cal-1998-granted-letter patent.pdf

1061-cal-1998-granted-reply to examination report.pdf

1061-cal-1998-granted-specification.pdf

1061-cal-1998-granted-translated copy of priority document.pdf


Patent Number 219341
Indian Patent Application Number 1061/CAL/1998
PG Journal Number 18/2008
Publication Date 02-May-2008
Grant Date 30-Apr-2008
Date of Filing 15-Jun-1998
Name of Patentee NELDON P. JOHNSON
Applicant Address 512 SOUTH 870 EAST AMERICAN FORK, UT 84003
Inventors:
# Inventor's Name Inventor's Address
1 NELDON P. JOHNSON 512 SOUTH 870 EAST AMERICAN FORK, UT 84003
PCT International Classification Number H 04 L 27/14
PCT International Application Number N/A
PCT International Filing date
PCT Conventions:
# PCT Application Number Date of Convention Priority Country
1 08/879755 1997-06-20 U.S.A.