Thomas Edison obtained a patent for an electrographic vote recorder.
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| Number | Title | Issue Date |
| 5225696 | Focal plane array with charge transfer gate A radiation detection system includes an array of radiation detectors disposed on a common substrate of type-n silicon, wherein each detector includes an electrode spaced apart from the silicon by silicon dioxide. Two rows of the detectors are coupled by ... | 07/06/1993 |
| 4734583 | Readout circuit for dual-gate CID imagers with charge sharing corrected for subtractive error A readout circuit for IR sensing charge injection devices (CID) is disclosed, the CID comprising a two-dimensional array of dual-gate sensing sites on an InSb or HgCdTe substrate. The novel readout circuit, which operates in the charge sharing mode (CSM) ... | 03/29/1988 |
| 4734582 | Integration time control for a radiation sensitive charge injection device A novel readout circuit for a charge injection device is disclosed permitting selection of the integration time to optimize performance. A primary application of the invention is to IR sensing in which performance is required at both low and very high lev... | 03/29/1988 |
| 4708766 | Hydrogen iodide etch of tin oxide Disclosed is a method for etching a tin oxide layer (18). The tin oxide layer (18) is masked by selectively forming an etchant-resistant material (20) on it. This material is itself patterned and etched, and then the exposed tin oxide (26) is isotropicall... | 11/24/1987 |
| 4681440 | High-sensitivity CID photometer/radiometer A high-sensitivity photometer/radiometer uses a single-pixel charge-injection-device (CID) light-sensitive sensor, and associated circuitry for: non-destructively reading-out the sensor charge level; for summing signals proportional to the charge level si... | 07/21/1987 |
| 4672412 | High fill-factor ac-coupled x-y addressable Schottky photodiode array Each unit cell of a Schottky barrier photodiode imaging array comprises a Schottky metal electrode formed on a silicon substrate. The Schottky electrode is reverse biased with a pulse for beginning a sensing interval, following which the change in charge ... | 06/09/1987 |
| 4652766 | Direct coupled charge injection readout circuit and readout method for an IR sensing charge injection device The invention relates to an improved readout circuit and readout method for an IR sensing array. The invention, given a limited time interval for reading out the signal from a sensor element in an array of sensor elements, permits a longer time to be devo... | 03/24/1987 |
| 4450465 | Radiation transmissive electrode structure In semiconductor imaging apparatus a composite electrode structure which transmits a high percentage of the radiation incident thereon and which also has high electrical conductivity is provided as the first level of a two level electrode structure.... | 05/22/1984 |
| 4434441 | Method for driving a charge injection device A charge injection device sensing an optical radiation pattern is driven at an operation sequence where the charge holding mode is inserted between the charge storing/readout mode and the charge injection mode. The charge holding period is effective for p... | 02/28/1984 |
| 4410811 | Method for the operation of a CID sensor matrix A method for the operation of a CID sensor matrix, in accordance with the parallel injection readout method, having coordinate rows and column lines, and sensing elements at the line intersections, in the operation of which the charges of the sensing elem... | 10/18/1983 |
| 4388532 | Solid state image sensor with image sensing elements having charge coupled photocapacitors and a floating gate amplifier A solid state image sensing array has a plurality of imaging sensing elements comprising first and second charge coupled MOS capacitors and a floating gate FET. The floating gate of the FET is disposed beneath the electrode of the second capacitor. In ope... | 06/14/1983 |
| 4385321 | Correlated triple sampling circuit A device for cyclically sampling the output voltage of a column of electrodes in a two-dimensional array of radiation detectors. The device samples the column voltage three times within a cycle and combines these samples in a manner which cancels out any ... | 05/24/1983 |
| 4338633 | Frame integrator for CID imaging system A frame integrator for integrating each of the outputs of an array of radiation detectors whose output is obtained by the charge-injection-device technique. An array of analog integrators is connected using row and column interconnection techniques with a... | 07/06/1982 |
| 4316221 | Apparatus for sequential row injection readout of CID imagers Apparatus is provided for periodically reading image intensity information from M rows x N columns of charge storage sites in a CID array imager. The magnitudes of signal charges collected at the sites in response to incident radiation are sensed by measu... | 02/16/1982 |
| 4301520 | Differential row readout of CID imagers A row-read technique, utilizable with conventional CID array imagers, is provided for reading image intensity information from such imagers and for differentially cancelling noise common to all rows during production of an output signal representative of ... | 11/17/1981 |
| 4266235 | Optoelectronic sensor according to the principle of carrier injection The invention relates to an optoelectronic sensor with at least one sensor element according to the principle of carrier injection (CID), whereby the surface of a doped semiconductor body is faced by two closely adjoining electrodes insulated from one ano... | 05/05/1981 |
| 4259576 | Anti-blooming shield for two-dimensional charge-injection devices A shield or opaque covering for reducing blooming at low input levels in -dimensional charge-injection devices. Two-dimensional charge-injection devices include X-Y aligned detector elements in which each detector element includes a y-electrode portion a... | 03/31/1981 |
| 4241421 | Solid state imaging apparatus An array of charge storage devices each including a pair of closely coupled conductor-insulator-semiconductor cells, one a row line connected cell and the other a column line connected cell, is provided on a common semiconductor substrate. Readout of the ... | 12/23/1980 |
| 4240116 | Solid state imaging apparatus An array of charge storage devices each including a pair of closely coupled conductor-insulator-semiconductor cells, one a row line connected cell and the other a column line connected cell, is provided on a common semiconductor substrate. Readout of the ... | 12/16/1980 |
| 4233527 | Charge injection device opto-electronic sensor An opto-electronic sensor has at least one light-permeable electrically insulating layer carried on a surface of a substrate of doped semiconductor material. The insulating layer carries a number of electrodes arranged in the form of a matrix of lines and... | 11/11/1980 |
| 4134031 | Charge injection devices and arrays and systems including such devices A charge injection device (CID) structure comprising two conductors for forming two adjacent potential wells in a semiconductor substrate and means such as an ion implanted region for maintaining a potential barrier between these wells. The CID is operate... | 01/09/1979 |
| 4079422 | Charge injection device readout A readout technique for use with a charge injection device avoids intensity-distortion resulting from both over-illumination and pattern noise. Although the invention utilizes column- (or row-) capacitance changing to produce information signals, it provi... | 03/14/1978 |
| 4055836 | Charge transfer readout circuits During readout, the signals induced on the columns of a charge transfer array cause currents to flow through respective conduction paths of field effect transistors connected to the columns. The threshold voltage Vth of each transistor is compe... | 10/25/1977 |
| 4054797 | Series-parallel scan, IR, CID, focal-plane array A series-parallel scan, IR, focal plane array which uses small InSb CID mles. The CID is used to premultiplex photocurrent through a preamplifier before the photosignal is introduced into a Si CCD TDI signal processor.... | 10/18/1977 |
| 4032903 | Charge injection device arrays During the integration of odd fields, alternate row conductors of a charge injection device (CID) array successively are placed at an operating potential at which charge carriers photoexcited in the substrate may be collected at the CID's along each such ... | 06/28/1977 |
| 4024562 | Radiation sensing and charge storage devices An array of radiation sensing devices, each including a pair of conductor-insulator-semiconductor capacitors, arranged in rows and columns in which the row stripes or lines form row connected capacitors in relation to selected surface regions of a semicon... | 05/17/1977 |
| 4016550 | Charge transfer readout of charge injection device arrays The combination of an X-Y addressed array of charge injection devides (CIDs) and a charge transfer output register system. The array is read out a row at a time by first restoring charge to the columns of the array, then removing the excess charge from th... | 04/05/1977 |
| 4011441 | Solid state imaging apparatus Relates to an imaging array of charge storage devices each including a pair of closely coupled conductor-insulator-semiconductor cells, one a row line connected cell and the other a column line connected cell. By transferring signal charge in a row of dev... | 03/08/1977 |
| 4004148 | Accumulation mode charge injection infrared sensor The present invention relates to an accumulation mode charge injection device utilizing the extrinsic photoconductivity of a doped semiconductor material to sense infrared radiation. The device is operated at cryostatic temperatures to preclude thermal io... | 01/18/1977 |
| 4000418 | Apparatus for storing and retrieving analog and digital signals An array of charge storage devices each including a pair of closely coupled conductor-insulator-semiconductor cells, one a row line connected cell and the other a column line connected cell, is provided on a common semiconductor substrate. The potential w... | 12/28/1976 |
| 3993897 | Solid state imaging apparatus An array of charge storage devices each including a pair of closely coupled conductor-insulator-semiconductor cells, one a row line connected cell and the other a column line connected cell, is provided on a common semiconductor substrate. Read out of the... | 11/23/1976 |
| 3988613 | Radiation sensing and charge storage devices An array of radiation sensing devices, each including a pair of conductor-insulator-semiconductor capacitors, arranged in rows and columns in which the row stripes or lines form row connected capacitors in relation to selected surface regions of a semicon... | 10/26/1976 |
| 3935446 | Apparatus for sensing radiation and providing electrical readout An array of radiation sensing devices each including a pair of closely coupled conductor-insulator-semiconductor cells, one a row line connected cell and the other a column line connected cell, is provided on a common semiconductor substrate. The potentia... | 01/27/1976 |