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Assignee: SAT


Location: SocieteAnonymedeTelecommunications
No. of patents: 15

NumberTitleIssue Date
6395974Protective pipe element for sheathed cable for controlling the integrity of the sheath
The duct element intended to accommodate, on its internal wall (14), a sheathed electrical or optical cable (4) in order to protect it has its internal wall (14) and external wall (13) electrically connected in order thereby to make an element for checkin...
05/28/2002
6052501Cable comprising optical fibres enclosed in an outer sheath
The cable includes optical fibers (1) enclosed in an outer sheath (2) having elongate reinforcing members (4) embedded therein, disposed in two diametrically opposite groups (3) each comprising a plurality of mutually tangential reinforcing members (4)....
04/18/2000
5483556Data compression-decompression method and apparatus for synchronous terminal means
A first frame produced by a first terminal is compressed after suppressing certain of the data fields forming it, then transmitted via a safe link through a transmission network into a second frame. This second frame received by a second terminal via the ...
01/09/1996
5438593Adaptive threshold decision device for multistate modulation
An adaptive threshold decision device for multistate modulation produces, at a symbol frequency, symbols dependent on the levels of a received demodulated baseband signal. It comprises a voltage divider, an adder for adding the baseband signal to a midpoi...
08/01/1995
5422964Method and device for spatial filtering of digital images decoded by transformation of block
Coding and decoding of digital images by transformation of pixel blocks reduce the data bit rate. Transformation of blocks leads to discontinuities in brightness level for pixels bordering on block boundaries. These discontinuities are detected for each g...
06/06/1995
5297173Phase/frequency comparator for timing recovering circuit
The phase/frequency comparator comprises a known phase comparator for comparing the phases of an digital input signal with a clock signal of which the period varies to within one time interval with respect to the period of the input signal. Such a phase c...
03/22/1994
5229609Detection assembly for an infrared monitoring system
A detection assembly is disclosed for an infrared monitoring system, comprising a strip of elementary infrared detectors for analyzing the background of a scene. The elementary detectors are image formation detectors having sensitive areas smaller than th...
07/20/1993
5151815Scanning device and application thereof to analysis devices
The present invention relates to scanning devices, for example those used in image scanning, observation and watching systems or else those used for example in aerial reconnaissance. The invention consists essentially in causing the mirror M to rotate abo...
09/29/1992
5041890Pre-processing wafer for the output currents of detection diodes subjected to thermal radiation
A wafer is provided for pre-processing the output currents of detection diodes subjected to thermal radiation, comprising an input stage for integrating the output currents of the diodes and an output stage delivering a signal related the incident radiati...
08/20/1991
5035506Coherent detection with increased sensitivity using four-wave amplification
A coherent optical detector has increased sensitivity for detecting a coherent optical signal by applying the coherent optical signal to be detected to a solid non linear medium pumped by two optical signals of opposite directions and coming from an auxil...
07/30/1991
5014270Device for synchronizing a pseudo-binary signal with a regenerated clock signal having phase jumps
A synchronizing device synchronizes a pseudo-binary signal particularly affected by high jitter with a regenerated clock signal into a synchronized signal. The device can be included between an output of a bipolar-to-binary converter receiving a plesiochr...
05/07/1991
4999502Device for generating an infrared image
A device is divulged for generating an infrared image, in which an electron beam having a section substantially equal to the area of a pixel formed from a material having high emissive power in the infrared, directly bombards this material. The energy of ...
03/12/1991
4773607Apparatus for accumulating a filiform element such as an optical fiber, at different speeds
An apparatus accumulating a filiform element in order to absorb differences in input and output travel speeds of the element, without tangling and damaging the element. Mechanical means located above an accumulation container draw the filiform element at ...
09/27/1988
4771175Parallel scan thermal camera
The camera includes a chip of infrared detectors disposed in lines and a processing chip. The latter comprises integrators for integrating the output currents of the detectors, controlled by an automatic gain control loop for reducing the dynamic of the s...
09/13/1988
4716742Cryogenic system for radiation detectors
A cryogenic device for radiation detectors is provided comprising an enclosure situated between a cryogenic cold finger supporting a detector and an external wall. After a brief degasification under vacuum of said enclosure, at least one gas is therein in...
01/05/1988
 
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