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 |
| 8169683 | Optical signal generation with D/A converters and optical clock pulse stream An apparatus includes an optical train pulse generator for generating continuous optical pulses each having a narrow width; a clock source having a high frequency for triggering the generator and operable as a sampling clock; a digital-to-analog converter DAC for co... | 05/01/2012 |
| 7466472 | Image forming apparatus, image forming method, program and computer readable information recording medium Upon predetermined mark image measurement, the timing signal is adjusted to obtain a required correction amount for a scan magnification of the modulated light in a measurement range of the predetermined mark image measurement, while, upon regular image forming oper... | 12/16/2008 |
| 7391550 | Method and apparatus for optical broadband frequency chirp Techniques for producing an optical broadband frequency sweep or chirp, include generating a narrowband frequency chirp and a frequency-shifted replica. The narrowband chirp has an optical carrier frequency, a pulse duration and a pulse bandwidth. A frequency-shifte... | 06/24/2008 |
| 7382511 | Light modulation type photointerrupter A light modulation type photointerrupter includes: a light source that emits a light pulse to a transit area where an object transits; a driving circuit that drives the light source to emit the light pulse; a photoreceptor that converts the light pulse from the tran... | 06/03/2008 |
| 7356019 | Method and apparatus for converting optical signals to radio channels The invention relates to a conversion of a pulse modulated signal to a radio frequency signal enabling use of applications and protocols designed for wireless optical links on radio frequency channels. The method comprises receiving the pulse modulated input signal,... | 04/08/2008 |
| 7336906 | Optical signal transmission An optical signal transmission apparatus for transmitting a plurality of data signals comprising a plurality of inputs for receiving a respective one of the data signals and delivering the respective data signal with a controlled phase and at a controlled data rate.... | 02/26/2008 |
| 7310965 | Compressor head, internal discriminator, external discriminator, manifold design for refrigeration recovery apparatus The compressor head, internal and/or external discriminator, and manifold design in general utilize ball valves on the suction and discharge of a cylinder head in the recovery of refrigerant liquid and/or vapor. The device facilitates the flashing of liquid refriger... | 12/25/2007 |
| 7305189 | Phase modulation for an optical transmission system A data modulation apparatus is proposed that includes a data modulator (20) for modulating data onto an optical signal at a predetermined bit rate. The resulting encoded optical signal is phase modulated by a phase modulator (50) that is driven by at l... | 12/04/2007 |
| 7292793 | Synchronous amplitude modulation for improved performance of optical transmission systems A method and apparatus is provided that yields improved performance of both single channel and WDM long-distance optical transmission systems by synchronously modulating of the transmitted signal's amplitude. An amplitude modulator receives an optical signal onto wh... | 11/06/2007 |
| 7277645 | High-bit-rate long-haul fiber optic communication system techniques and arrangements A 90 degree Alternate-Phase (AP) on-off keying (OOK) transmission format for high bit rate, long-haul optical transmission systems employing a chirped or a chirp-free pulse stream generated by a pulse generator (e.g., Mach Zehnder modulator) driven by mixing two ele... | 10/02/2007 |
| 7266309 | Apparatus and method for stabilizing bias voltage for pulse generating modulator The present invention relates to an apparatus and method for stabilizing a bias voltage for a pulse generating modulator, which can automatically detect an optimal bias voltage for an external modulator, which is used in RZ or CSRZ modulation of an optical transmiss... | 09/04/2007 |
| 7251417 | Method and apparatus for optimization of dispersion-managed return-to-zero transmission by employing optical pulses having variable widths A method and apparatus for transmitting optical pulses in a dispersion-managed optical transmission system comprises determining the pulse width of optical pulses in a optical transmission channel in accordance with the path-average dispersion (PAD) experienced by t... | 07/31/2007 |
| 7251463 | Methods and apparatus for controlling signals A communication and/or amplifier system according to various aspects of the present invention includes an excursion signal generator and a filter system. The excursion signal generator identifies a portion of a signal that exceeds a threshold, such as a magnitude th... | 07/31/2007 |
| 7248253 | Pulse width modulated display with improved motion appearance A field sequential pulse width modulated display system (10) comprises a digital micromirror device (DMD) (24) having a plurality of micromirrors that each selectively pivot to reflect light onto a screen (28) to illuminate a corresponding pixel... | 07/24/2007 |
| 7245423 | Reducing noise in a fiber amplifier using a cleaning optical signal A fiber amplifier system and method are provided for reducing noise produced by a fiber amplifier by combining an optical signal to be amplified with a continuous wave optical signal that stimulates ions in the fiber amplifier to reduce photons produced by spontaneo... | 07/17/2007 |
| 7233869 | Phase comparing method and apparatus in which a sampled periodic signal has a predetermined resolution A phase difference between a first periodic signal, and a sample signal corresponding to a second periodic signal and having a predetermined signal resolution M is calculated in a phase comparing method. The sample signal is obtained by sampling the second periodic ... | 06/19/2007 |
| 7225984 | Systems and methods for providing multiple object planes in an optical image scanning environment Systems and methods for optically scanning multiple object planes are provided. One embodiment is a system for optically scanning multiple object planes comprising a platen and an optical head for scanning. The optical head comprises an optical delay element, a firs... | 06/05/2007 |
| 7224906 | Method and system for mitigating nonlinear transmission impairments in fiber-optic communications systems The present invention relates to a method for transmitting data. An optical pulse stream comprising a plurality of return-to-zero optical pulses is prepared by modulating a phase of light output by an optical source to thereby encode data from a data source. The lig... | 05/29/2007 |
| 7209669 | Method and apparatus for synchronizing a pulse carver and a data modulator for optical telecommunication Method and apparatus for synchronizing two different types of modulators in an optical transmission system includes a first modulator generating an optical pulse train, a second modulator encoding data onto the optical pulse train, an optical filter resolving upper ... | 04/24/2007 |
| 7196950 | Non-volatile semiconductor storage device performing ROM read operation upon power-on A power-on reset circuit has a power-on level detecting circuit which detects a power voltage to output a power-on reset signal and a delay circuit which delays the power-on reset signal output by the power-on level detecting circuit. Two chip address specifying pad... | 03/27/2007 |
| 7163324 | Led light stick assembly A light emitting diode (LED) warning signal light, the warning signal light comprising a plurality of light sources constructed and arranged with a reflector or cullminator, the LED light source being in electrical communication with a controller and a power supply,... | 01/16/2007 |
| 7159412 | Compressor head, internal discriminator, external discriminator, manifold design for refrigeration recovery apparatus The compressor head, internal and/or external discriminator, and manifold design in general utilize ball valves on the suction and discharge of a cylinder head in the recovery of refrigerant liquid and/or vapor. The device facilitates the flashing of liquid refriger... | 01/09/2007 |
| 7153013 | LED warning signal light and moveable row of LED's A light emitting diode (LED) warning signal light, the warning signal light comprising a plurality of light sources constructed and arranged with a reflector or cullminator, the LED light source being in electrical communication with a controller and a power supply,... | 12/26/2006 |
| 7142186 | Method and apparatus for converting gradation data in STN LCD Disclosed relates to a method and an apparatus for converting gradation data for a color STN-LCD, capable of providing color moving pictures of excellent quality. The apparatus includes a storage buffer 31 for storing input data for driving the LCD, and a fra... | 11/28/2006 |
| 7123835 | Method and system for increasing the capacity and spectral efficiency of optical transmission A method and system for increasing the capacity and spectral efficiency of optical transmission includes pre-filtering optical pulses utilizing a bandwidth substantially proportional to the bit rate of the transmission system prior to propagating the optical pulses ... | 10/17/2006 |
| 7120364 | Optical modulator and method for polarization bit interleaving The invention relates to optical communications using techniques for providing efficient high speed polarization bit interleaving. One common architecture for high-speed time-division-multiplexing employs two modulators having a same bit rate, wherein two separately... | 10/10/2006 |
| 7113327 | High power fiber chirped pulse amplification system utilizing telecom-type components An erbium fiber (or erbium-ytterbium) based chirped pulse amplification system is illustrated. The use of fiber amplifiers operating in the telecommunications window enables the implementation of telecommunications components and telecommunications compatible assemb... | 09/26/2006 |
| 7110155 | Light modulation apparatus, image pickup apparatus, and drive methods therefor Disclosed are a light modulation apparatus including a liquid crystal device; and a polarizing plate disposed in an optical path of light made incident on said liquid crystal device; wherein said liquid crystal device is of a guest-host type using a negative type li... | 09/19/2006 |
| 7095334 | Strip LED light assembly for motor vehicle A light emitting diode (LED) warning signal light, the warning signal light comprising a plurality of light sources constructed and arranged with a reflector or cullminator, the LED light source being in electrical communication with a controller and a power supply,... | 08/22/2006 |
| 7088491 | Pulse generating apparatus and method An apparatus and method generating an optical pulse of picosecond class (having a high duty ratio), which accurately and stably operates at an arbitrary repetition frequency, has a high OSNR, and is not restricted by an RF modulation frequency, are provided. New mod... | 08/08/2006 |
| 7080930 | LED warning signal light and row of LED's A light emitting diode (LED) warning signal light, the warning signal light comprising a plurality of light sources constructed and arranged with a reflector or cullminator, the LED light source being in electrical communication with a controller and a power supply,... | 07/25/2006 |
| 7073346 | Compressor head, internal discriminator, external discriminator, manifold design for refrigerant recovery apparatus and vacuum sensor The compressor head, internal and/or external discriminator, and manifold design in general utilize ball valves on the suction and discharge of a cylinder head in the recovery of refrigerant liquid and/or vapor. The device facilitates the flashing of liquid refriger... | 07/11/2006 |
| 7076120 | Optical pulse generator for return-to-zero signaling The specification describes an optical pulse generator in a return-to-zero format in which a phase-modulated (PM) optical signal is converted to intensity-modulated (IM) optical pulses using chromatic dispersion. Compared with Mach-Zehnder-modulator-based pulse gene... | 07/11/2006 |
| 7068950 | Correcting misalignment between data and a carrier signal in transmitters A device and technique for aligning an optical carrier signal (e.g., a soliton pulse train) with a data signal in a transmitter. According to the invention, the device is configured to analyze the radio frequency (RF) spectrum of the transmitter's output. In one imp... | 06/27/2006 |
| 7068411 | Method and apparatus for optical sampling An optical sampling method and apparatus are provided for modulating an optical signal using a first electroabsorption modulator (EAM) driven by a sinusoidal RF voltage signal to provide substantially jitter free temporal gating of the optical signal. The gated opti... | 06/27/2006 |
| 7068881 | Optical code division multiple access network utilizing reconfigurable spectral phase coding An optical code-division multiple-access (O-CDMA) apparatus, network, and communications method. A transmitter data modulates a sequence of ultra-fast (˜1 ps) pulses. An encoder wavelength demultiplexes the pulses, separately phase-modulates the wavelength componen... | 06/27/2006 |
| 7064740 | Backlit display with improved dynamic range A display is backlit by a source having spatially modulated luminance to attenuate illumination of dark areas of images and increase the dynamic range of the display. ... | 06/20/2006 |
| 7064674 | Replaceable LED modules A modular warning signal light system comprising at least one support. The at least one support having at least one module receiving port. The module receiving ports constructed and arranged to removably receive the support engagement member of a module. Each module... | 06/20/2006 |
| 7046160 | LED warning light and communication system A light emitting diode (LED) warning signal light and communication device comprising a controller for generating a first observable light signal and a second non-observable light signal within said first light signal. The second light signal is formed of packets of... | 05/16/2006 |
| 7038593 | Strip LED light assembly for motor vehicle A light emitting diode (LED) warning signal light, the warning signal light comprising a plurality of light sources constructed and arranged with a reflector or cullminator, the LED light source being in electrical communication with a controller and a power supply,... | 05/02/2006 |
