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:
Nov. 14, 2000
Filed:
Oct. 22, 1997
Applicant:
Inventor:
Barry Thornton, Austin, TX (US);
Assignee:
INT Labs, Inc., Austin, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04R / ;
U.S. Cl.
CPC ...
455 88 ; 455 86 ; 455-7 ;
Abstract
Method and apparatus for facilitating the simultaneous bi-directional transmission of data on a single AM carrier is described. In particular, the process is implemented using two or more transceivers, each comprising a modulator, a demodulator, and an oscillator operating at the same frequency and in locked phase. One of the oscillators functions as a master, to which all other oscillators ('slaves') are locked. Each of the transceivers also includes means for recovering the appropriate signal to be demodulated by the particular transceiver.