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:
Apr. 09, 1996
Filed:
Oct. 25, 1994
P Stuckey McIntosh, Atlanta, GA (US);
Digital Wireless Corp., Atlanta, GA (US);
Abstract
The present invention comprises the digital implementation of a spread spectrum communications system including a spread spectrum modulator or transmitter and a spread spectrum receiver or demodulator. The demodulator, as modified with optional techniques, operates at zero I. Under these circumstances the receiver is susceptible to 1/F noise, as well as transient overloads. The addition of a high pass filter stage to only the receiver, in a communication system, without modifying the transmitter, will be recognized by those skilled in the art as violating the basic precepts of communications which attempt to tailor the characteristics of a receiver and transmitter to each other. However the applicant has found that demodulating RZ encoded data with an added high pass filter results in the production of Manchester data which is one of the forms of data encoding that can be handled by the demodulator.