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:
Sep. 10, 1985
Filed:
Dec. 27, 1983
Jean Potage, Franconville, FR;
Philippe Sidin, Paris, FR;
Thomson CSF, Paris, FR;
Abstract
The interpolation device for the voice coded in DELTA transmission and transmitted on a fixed frequency or with frequency jumps carrier, comprises in parallel on a classic reception network, a jamming detection device being able to be constituted by a high-pass filter in order to detect the components outside the modulated signal band, a detector circuit with threshold fixing the level of the outside band components characterizing a jamming and possibly a monostable circuit. It comprises, furthermore, a rumbling generator that transmits to the input of the DELTA decoder a rumbling sequence in place of the sequence detected on a stage when this sequence is reckoned as jammed by means of a switch controlled by the output of the monostable circuit.