The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 30, 2002
Filed:
Oct. 20, 1998
Barry Thornton, Austin, TX (US);
Jack E. Long, Austin, TX (US);
Clearcube Technology, Inc., Austin, TX (US);
Abstract
A bi-directional signal coupler is incorporated into a transmission/reception communication system and is used for the transmission and reception of signals over a single transmission medium. The bi-directional signal coupler includes a primary nulling device for removing a signal to be transmitted through the bi-directional signal coupler from a signal to be received into the bi-directional signal coupler. The primary removing device provides an output signal representative of the signal to be received plus the signal to be transmitted wherein a level of the signal to be transmitted is removed to a first extent relative to a level of the signal to be received. At least one additional secondary device is provided for removing the signal to be transmitted from the signal to be received in a successive manner. The at least one additional secondary removing device operates upon the output signal of the primary removing device and is disposed for successively providing a further reduction in the level of the signal to be transmitted relative to the level of the signal to be received. A method of bi-directional signal coupling is also disclosed.