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. 16, 1985
Filed:
Jan. 12, 1983
Charles de Riviere, Paris, FR;
Thomson-CSF, Paris, FR;
Abstract
The modulating device reduces the number of electronic functions required for generating an SSB signal which is subjected to SSB peak-limiting in a transmitter which is selectively operable either on the upper channel or on the lower channel. By means of a mixer, the signal delivered by the peak-limiter is mixed with a signal whose frequency is double that of the local oscillator. By filtering the signal thus obtained by means of the filter which is symmetrical with the filter employed for carrying out SSB modulation, the signal to be transmitted on one of the channels is thus obtained. The signal to be transmitted on the other channel is obtained by reversing the position of the two filters.