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:
Mar. 16, 1999
Filed:
Apr. 24, 1996
Gregoire Le Tourneur, Saint-Quay-Perros, FR;
Freddy Balestro, Grenoble, FR;
France Telecom, Paris, FR;
Abstract
A device for programmable delay of an analog signal in an acoustic antenna that comprises at least one analog/digital converter circuit delivering, from the analog signal, a digital signal at a first sampling frequency, followed by a delay memory receiving the digital signal in write mode, making it possible to store M consecutive samples in memory. A circuit for write and read access to the delay memory is provided to address the delay memory in write and read mode, which, under read access control, delivers a series of samples delayed by a defined value, a function of the number of samples M stored therein. A sub-sampling circuit receives the delayed digital signal and delivers a sub-sampled delayed digital signal at a second sampling frequency less than the first sampling frequency.