Did You Know...
...that Robert Adler has the dubious distinction of being the Father of the Couch Potato? Back in 1955 Adler was employed by what was then Zenith Radio Corp., where he was charged to invent something that would allow viewers to turn down the TV volume without leaving their chairs. After a series of flops (such as a wired contraption that people tripped over), Adler hit on the idea of using sound waves. Thus the Remote Control was born...
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| Number | Title | Issue Date |
| 7399964 | Electron microscope, measuring method using the same, electron microscope system, and method for controlling the system The present invention relates to an electron microscope which reduces a difference in measured values that occur due to a difference in resolution that cannot be fully adjusted which exists among electron microscopes, or occurs as time elapses, and a method for meas... | 07/15/2008 |
| 7355724 | Three-dimensional measurement system The invention relates to a three-dimensional measurement system comprising a hardware part and a software part, in which the hardware part includes a mobile two-axis assembly (12) associated with a remote measurement device (13) installed on a fixed pa... | 04/08/2008 |
| 7321464 | Electroluminescent light source and display incorporating same A brightness enhanced reflective polarizer includes a reflective polarizer and a structured surface material. ... | 01/22/2008 |
| 7301263 | Multiple electron beam system with electron transmission gates A multiple electron beam source comprises a photon source to generate a photon beam, a lens to focus the photon beam, a photocathode having a photon receiving surface and an electron emitting surface, and an array of electron transmission gates spaced apart from the... | 11/27/2007 |
| 7269287 | Method and apparatus for measuring dimension using electron microscope Disclosed is a scanning electron microscope (SEM) for realizing high-precision dimension measurement of a sample, such as an ArF exposure photoresist, that requires the measurement of a dimension by a low S/N signal waveform. To this end, partial waveforms (or parti... | 09/11/2007 |
| 7262410 | Sample observing apparatus and sample observing method There is provided a sample observing apparatus for observing the surface of a sample by irradiating an electron beam thereto, having an electron gun for irradiating the electron beam to the surface of the sample, a potential control section for adjusting electric po... | 08/28/2007 |
| 7251553 | Thermal optimization of EMI countermeasures The present invention provides an electronic circuit and EMI countermeasure for an automotive electronic control unit that provides a maximum amount of EMI protection under normal operating conditions, i.e., ambient temperatures. The effectiveness of the EMI counter... | 07/31/2007 |
| 7209589 | Method and apparatus for measuring dimension using electron microscope Disclosed is a scanning electron microscope (SEM) for realizing high-precision dimension measurement of a sample, such as an ArF exposure photoresist, that requires the measurement of a dimension by a low S/N signal waveform. To this end, partial waveforms (or parti... | 04/24/2007 |
| 7193200 | Receiver circuit for a push-pull transmission method The invention relates to a receiver arrangement for a push-pull transmission method. First and second signal detectors, to which a first input signal is fed provide first and second detector signals depending on a comparison of the first input signal with a detector... | 03/20/2007 |
| 7084745 | Sensor system for determination of environment for motor vehicles The invention relates to a sensor system for sensing objects in an area of the surroundings of a motor vehicle, in which, in order for the sensor system to sense the objects, waves are emitted in a predefinable main irradiation direction, are reflected partially at ... | 08/01/2006 |
| 7050603 | Watermark encoded video, and related methods Watermarks in video signals or the accompanying audio track are used to associate video objects in a video sequence with object specific actions or information. A video object refers to a spatial and temporal portion of a video signal that depicts a recognizable obj... | 05/23/2006 |
| 7026618 | Highly-sensitive, pyroelectric infrared sensing method and apparatus A highly-sensitive, pyroelectric infrared sensing method and apparatus that can detect infrared temperature with high sensitivity throughout the entire electromagnetic wave range including millimeter waves and radioactive rays. The supersensitive infrared sensor is ... | 04/11/2006 |
| 7005638 | Apparatus and method for reducing the electron-beam-induced deposition of contamination products In a device for examining a specimen with an electron beam, in particular an SEM, TEM, or CSEM, contamination products are often result from the irradiation. To reduce these contamination products, the surface of the object irradiated with the electron beam is simul... | 02/28/2006 |
| 6972620 | Post amplifier array integrated circuit An optical communication system that includes a multi-channel post amplifier assembly with flexible output configurations for amplifying optical-to-electrical converted signals on selectable groups of amplifier channels is provided. The post amplifier assembly, when... | 12/06/2005 |
| 6965103 | Signal strength detection circuits for high speed optical electronics This disclosure is generally concerned with devices for determining photocurrent levels. One example of such a device is an optoelectronic device that includes a photodetector. The photodetector is configured to receive an optical signal and generate a corresponding... | 11/15/2005 |
| 6359324 | Push-pull configurations for semiconductor device having a pn-junction with a photosensitive region A semiconductor device that has a p-n junction with a photosensitive region partially having a diffusion region and a non-diffused region when the p-n junction is subjected to a reverse bias voltage. When an incident light (e.g. a laser) is directed at th... | 03/19/2002 |
| 5973313 | Method and apparatus for generating ratiometric control signals A ratiometric sensor is formed of a first photodiode connected in series with an electronic component, such as a second photodiode or a resistor, between a source of first voltage and a source of second voltage. The ratiometric sensor supplies a "ratiomet... | 10/26/1999 |
| 5650608 | Method and apparatus for generating ratiometric control signals A ratiometric sensor is formed of a first photodiode connected in series with an electronic component, such as a second photodiode or a resistor, between a source of first voltage and a source of second voltage. The ratiometric sensor supplies a "ratiomet... | 07/22/1997 |
| 5064274 | Automatic automobile rear view mirror assembly A variable reflectivity automobile mirror assembly is operable by automatic electrical circuitry responsive to variations of incident light upon the mirror and ambient light level about the automobile to provide positions of high and low reflectivity. The... | 11/12/1991 |
| 4950076 | Alternate approach for obtaining dynamic range in monopulse guidance systems A system for improving the dynamic range of guidance systems for missiles d bombs by replacing pseudo-logarithmic amplifiers in the processing circuits with transimpedance amplifiers having feed back impedance operating in conjunction with lower bandwidth... | 08/21/1990 |
| 4940967 | Balanced digital infrared detector circuit A digital control circuit uses a single infrared detector to control the clock pulse on a digital counter so that the sensitivity control is based on the length of time a change in infrared radiation persists. A pyroelective detector is located in a volta... | 07/10/1990 |
| 4902884 | Circuit arrangement for carrying out light intensity measurements In a circuit arrangement for carrying out light intensity measurements, comprising an input terminal (5), an output terminal (6), a first and a second photodiodes (D1, D2) for receiving light emitted by an optical light source (S) an... | 02/20/1990 |
| 4812635 | Optoelectronic displacement sensor with correction filter An optoelectronic displacement sensor for the absolute measurement of displacement in the sub-micrometer range is described, which is constructed, according to an exemplary embodiment, with a light-emitting diode (L) as light source and two photodiodes (D... | 03/14/1989 |
| 4769533 | Circuit arrangement for a position-sensitive radiation detector The invention relates to a circuit arrangement for a position sensitive radiation detector which produces a current or voltage signal (UY) that depends exclusively on the coordinates x and y of the point of incidence of electromagnetic radiatio... | 09/06/1988 |
| 4717820 | Device for detecting movable objects A device for detecting movable objects within a limited detection area comprises a number of juxtaposed photosemiconductors (A, B) on which an image of the detection area is adapted to impinge and which are uniformly distributed on branches (10, 11) of an... | 01/05/1988 |
| 4651023 | Electronic switch An electronic switch has a pair of light dependent resistors forming part of a potential divider with the hysteresis of the circuit being high enough to prevent equally applied changes in light level from effecting the switch action. The divider controls ... | 03/17/1987 |
| 4624572 | Non-invasive reflectance spectrophotometric apparatus Spectrophotometric apparatus is incorporated in a portable housing with a light source for emitting a wide band of radiation from which monochromatic light is produced and projected onto a specimen outside the housing. A hood is mounted to the housing and... | 11/25/1986 |
| 4559643 | Opto-electronic image processor The invention relates to a device for processing optical information of light intensity and/or light polarization and/or phase position and/or spectral composition varying in one, two or three dimensions and possibly varying in time. The processing of the... | 12/17/1985 |
| 4348686 | Microwave-infrared detector with semiconductor superlattice region A detector and/or mixer of electromagnetic energy in the microwave-infrared region of the electromagnetic spectrum comprised of a body of semiconductor material having a superlattice region consisting of, for example, InAs - GaSb wherein the thickness of ... | 09/07/1982 |
| 4302668 | Variably biased photoelectric circuit A photoelectric circuit is provided with a differential amplifier having two inputs. First and second photosensitive elements and resistors are connected in parallel to each of the two inputs of the differential amplifier, respectively. A second amplifier... | 11/24/1981 |
| 4216378 | Optical scanner An optical scanner for scanning an image on a document to produce an electrical signal representing the image density of the image at successively scanned points positioned along a scan line on the document includes a platen for supporting the document in... | 08/05/1980 |
| 4207461 | Continuous focus proportional controller An improved automatic continuous focus system of the spatial image correlation type determines whether focus correction is needed and in which direction and moves the lens with a proportional drive in accordance with these determinations. The focus motor ... | 06/10/1980 |
| 4143264 | Highway line detector A highway line detection system for an automobile which provides an output signal when a traffic line on a pavement under an automobile is about to be crossed. It includes a photoelectric sensor connected to an electrical bridge circuit, and the bridge ci... | 03/06/1979 |
| 4078151 | Electronic graphics pad A graphics panel is disclosed which translates any random trace of a point light source across the panel into voltage indicative of orthogonal components of the displacement of the light source. By means of such electrical signals a replica of the trace o... | 03/07/1978 |
| 4054834 | Device for measuring AC in a high tension line Shunt means supply a diode bridge with an alternating current proportional to the AC to be measured. The bridge has at least two electroluminescent diodes which emit two alternating streams of half-wave light pulses which are supplied to two fibre optic s... | 10/18/1977 |
| 4048596 | Light-activated remote control unit A remote control unit for an electrical appliance includes a pair of photocells and one or more threshold devices connected to sense differential illumination of the photocells. The threshold devices, in turn, emit signals that initiate operation of a con... | 09/13/1977 |
| 4045804 | Focus detecting device A focusing device for providing an indication of the in-focus condition of a lens relative to a scene and a focal plane, F0. An a.c. bridge circuit includes photoelectric elements in two legs thereof; the elements being physically positioned ju... | 08/30/1977 |
| 4030840 | Waveform sampler A waveform sampler, for cooperation with a conventional sampling oscilloscope, has, as part of a bridge circuit, two Gallium Arsenide photoconductors mounted on a 50 ohm stripline. One GaAs photoconductor, the sampling photoconductor, is illuminated. The ... | 06/21/1977 |
| 4016423 | Infrared analyzer of constant radiant energy This invention relates to an improved infrared analyzer, wherein the total radiant energy reaching the detector is maintained at a constant value independently from the aging of the source of radiant energy or the soiling of the sample cell. According to ... | 04/05/1977 |
| 4012663 | Lighting control system Spectral output of lamp is controlled by a combination of color filters and dual photocell which monitors the spectral composition of the radiant energy from the lamp and compensates for change therein by automatically varying the power applied to the lam... | 03/15/1977 |
