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. 06, 1999
Filed:
Nov. 10, 1995
Applicant:
Inventor:
Rodney W Gibson, Haywards Heath, GB;
Assignee:
U.S. Philips Corporation, New York, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04K / ;
U.S. Cl.
CPC ...
375208 ; 375340 ;
Abstract
A communications system including a primary station and at least one or more secondary stations. The secondary station transmits signals as spread spectrum signals and a receiver in the primary station receives and decodes the spread signals. Frequency offsets in the received spread spectrum signals are dealt with by digitizing the received signals to produce raw data samples which are despread, frequency analyzed and the spectrums derived are scanned for peaks exceeding a predetermined threshold and the outputs indicate the presence or absence of codes.