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:
Jun. 24, 1986
Filed:
Oct. 19, 1984
Joseph Kadin, Florham Park, NJ (US);
ITT Corporation, New York, NY (US);
Abstract
The frequency hopping data communications system comprises a first circuit arrangement to produce identical first and second pseudo-noise code streams time displaced with respect to each other, each of the first and second code streams producing a frequency hopping rate equal to n times the rate of binary data being transmitted, where n is an integer; a second circuit arrangement coupled to the first circuit arrangement, the second circuit arrangement being responsive to the data and the first and second code streams to provide a modulated signal for conveying the data, the modulated signal having different randomly occurring frequencies representing both binary conditions of the data and random spacing between the randomly occurring frequencies representing each of the binary conditions of the data, each bit of the data being represented by n of the randomly occurring frequencies; a third circuit arrangement coupled to the second circuit arrangement to receive the modulated signal and to separate the randomly occurring frequencies representing each of the binary conditions from the received modulated signal; a fourth circuit arrangement coupled to the third circuit arrangement to recover the data from the separated, received modulated signal; and a fifth circuit arrangement coupled to the third circuit arrangement and the fourth circuit arrangement to synchronize the third circuit arrangement to the received modulated signal.