| Patent Number |
Title Of Patent |
Date Issued |
| 5777672 |
Photosensitive device with juxtaposed reading registers |
July 7, 1998 |
| In a CCD type photosensitive device, the charges produced in two consecutive columns of pixels are transferred into different reading registers: the charges from the first column are loaded into the first register and the charges from the second column travel through the first regist |
| 5600369 |
Large-sized pixel image detector |
February 4, 1997 |
| A method of detecting electromagnetic radiation imparted onto a matrix of photosensitive photomos networks in which pixels of each photomos network are simultaneously exposed to electromagnetic radiation source for a predetermined period of time. Thereafter, transfer signals are applied |
| 5506525 |
Sampling circuit for analog signals |
April 9, 1996 |
| A sampling circuit which obtains a level of sampled-and-held signal which is determined with respect to a well-determined reference level V0, even though the input signal is a useful signal referenced with respect to a low-stability reference level. This is the case in particular for sam |
| 5502278 |
Encased electronic circuit with chip on a grid zone of conductive contacts |
March 26, 1996 |
| The invention relates to the encapsulation of integrated circuits, and more particularly encapsulation in a multi-layer ceramic case. In order to permit the disposition of chips of variable size on a monolithic chip (22, 24, 26) reception site (23, 25, 27) without the risk of having exce |
| 5481301 |
Method of detecting electromagneto radiation in a large-sized pixel image detector having matric |
January 2, 1996 |
| A method of detecting electromagnetic radiation imparted onto a matrix of photosensitive photomos networks in which pixels of each photomos network are simultaneously exposed to electromagnetic radiation source for a predetermined period of time. Thereafter, transfer signals are applied |
| 5391981 |
Current source adapted to allow for rapid output voltage fluctuations |
February 21, 1995 |
| A current source delivering a constant current despite sudden voltage fluctuations which may be applied on its output. This current source includes two branches in parallel, a generating branch and a reference branch. The output current is kept constant by keeping the potential diffe |
| 5311540 |
Laser with coupled optical waveguides |
May 10, 1994 |
| The invention relates to lasers, and more particularly to solid state lasers such as neodymium on lithium niobate crystal lasers. The invention provides a structure with several juxtaposed optical waveguides (12) sufficiently close to each other laterally to be coupled laterally. In |
| 5311144 |
Ultra-fast differential amplifier |
May 10, 1994 |
| In a high gain differential amplifier, in order to obtain a high gain-band product, this amplifier is provided with a controlled feedback in current. In each of the channels of the amplifier, a current generator connected to the output of the amplifier draws a current through the load re |
| 5307027 |
Current mirror with low copying error |
April 26, 1994 |
| The disclosure relates to current mirrors in which a high level of copying error may arise out of the collapse of the gain of the transistors. The mirror includes, in its output arm, a "Darlington" type amplifier subjected to feedback by a buffered mirror. The error gets cancelled for a |
| 5304793 |
Light signal receiver with preamplification function and dual polarization means |
April 19, 1994 |
| A light signal receiver in which an input of a preamplifier receives a so-called useful electric current output by a light-sensitive device. The preamplifier comprises an input stage having an input transistor assembled with a "common base" whose emitter is connected to the input of the |
| 5283451 |
Optical sensor exhibiting a reduced smearing effect |
February 1, 1994 |
| The invention relates to photosensitive semiconductor devices and, more particularly, to linear arrays having several parallel rows of photoconductive points and operating in the integration and charge carry mode. In particular, the object of the invention is to reduce a smearing eff |
| 5283438 |
Monolithic infrared detector with pyroelectric material |
February 1, 1994 |
| Infrared detectors whose detecting part consists of a layer of pyroelectric material deposited on a semiconductive substrate are disclosed. The object is to facilitate the polarization of the layer of pyroelectric material after it is deposited on the semiconductive substrate. The detect |
| 5278518 |
Amplifying circuit with exponential gain control |
January 11, 1994 |
| The invention relates to an amplifying circuit with controlled gain, the gain of which is an exponential function of a gain control voltage. The circuit includes two identical amplifiers A1 and A2, the first constituting the basic amplifying cell of the circuit (input Ie, output Is), |
| 5114237 |
Programmable integration time photosensitive sensor |
May 19, 1992 |
| A photosensitive sensor including multilinear arrays of n lines of cells which operate by charge integration and time delay by successive observations of the same image line by the n lines in the array, and by accumulation of the corresponding n observations in the cells of the senso |
| 5073908 |
Reading registers of the charge-coupled device type with wide range of output |
December 17, 1991 |
| Disclosed is a reading register of the type formed, firstly, by a shift register of the charge-coupled device type working according to a mode other than a two-phase mode and, secondly, an output circuit. It is notably an object of the invention improve the dynamic range, in amplitud |
| 5055931 |
Image sensor with high storage capacity per pixel |
October 8, 1991 |
| Disclosed is a charge-transfer or charge-coupled (CCD) type device, aimed at increasing the charge storage capacity. The disclosed photosensitive device includes a plurality of photosensitive cells. Each photosensitive cell includes an elementary photosensitive zone beneath which there i |
| 5034701 |
Amplifier circuit with linearly controlled gain |
July 23, 1991 |
| Disclosed is an amplifier circuit with gain controlled by a current or a voltage. It is sought to obtain a linear gain as a function of the set value current or voltage, whereas amplifiers with controlled gain usually have a non-linear variation of the gain as a function of gain control |
| 4999630 |
Fast analog-digital converter with parallel structure |
March 12, 1991 |
| Disclosed is an analog/digital converter designed to convert an analog voltage into a digital voltage with n bits. The converter comprises:p=2.sup.n comparators capable of comparing the analog voltage with a reference analog voltage obtained by a voltage generator, each comparator compri |
| 4968646 |
Process for fabricating small size electrodes in an integrated circuit |
November 6, 1990 |
| According to the invention, a first layer of conductive material (11) is submitted to an incomplete etching operation in the presence of a mask (13). After elimination of the mask, a second layer of conductive material is deposited, and the thus-obtained result is submitted to an etching |
| 4909428 |
Furnace to solder integrated circuit chips |
March 20, 1990 |
| A furnace for soldering integrated circuit chips on a ceramic substrate has a heating plate supporting the substrate, the plate comprising perforations at the places where the integrated circuit chips will be soldered, behind the plate, a heat radiation source and a device to direct |
| 4908799 |
Device to detect the functioning of the read system of an EPROM or EEPROM memory cell |
March 13, 1990 |
| An electrically programmable read only memory including an inhibiting circuit for preventing operation of the memory if a reading voltage higher than a predetermined level above a standard reading voltage is applied as a reading voltage during a read operation. The inhibiting circuit inc |
| 4827451 |
Safety device for the programming of an electrically programmable non-volatile memory |
May 2, 1989 |
| In a memory consisting of a matrix of memory cells, each of which is accessible by rows and columns and is connected to write and read circuits which are used, respectively, to programme them in two states, "1" or "0", depending on the input data, and to read the programmed state, the me |
