Bizarre Patents
Mouse device with a built-in printer
A mouse device for use as an input device of a computer is provided that includes a housing in which recording paper is loadable, and a printer unit provided within the housing for printing on the recording paper print information received from the computer.
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| Number | Title | Issue Date |
| 7444040 | Magneto-optical component The invention relates to a magneto-optical component, such as a variable light attenuator, light modulator or optical switch, having small size, low power consumption and high speed. The magneto-optical component comprises at least one Faraday rotator comprising a m... | 10/28/2008 |
| 7433558 | Methods for optical isolation in high power fiber-optic systems Methods for optical isolation in high peak power fiber-optic systems prevent damage to a facet within a fiber-optic isolator caused by back-reflected light from, for example, an optical amplifier. Preventing damage to the facet may include expanding a mode area of t... | 10/07/2008 |
| 7365533 | Magneto-optic remote sensor for angular rotation, linear displacements, and evaluation of surface deformations A system and method to detect angular rotation, linear displacement and/or surface deformations is presented. The method is based on the ability of a linear polarized light to interact with magnetic materials and to change its polarization angle due to Faraday effec... | 04/29/2008 |
| 7321463 | In-line optical isolator In conventional optical isolators, an optical signal is dispersed by polarization or the characteristics are varied by heat generation in a garnet crystal. According to the invention, the crystal optical axis (3c) of rutile crystal (3) is orient... | 01/22/2008 |
| 7310359 | Thermally self-correcting gain modules and associated systems and methods Aspects of the present invention are directed to the use of optical gain structures that include alternating layers of gain medium and transparent heat conductors in which the gain medium itself functions as a correction optic. The gain medium changes to an optimum ... | 12/18/2007 |
| 7308171 | Method and apparatus for optical isolation in high power fiber-optic systems Methods and apparatus for optical isolation in high peak power fiber-optic systems prevent damage to a facet within a fiber-optic isolator caused by back-reflected light from, for example, an optical amplifier. Preventing damage to the facet may include expanding a ... | 12/11/2007 |
| 7295781 | Polarization mode dispersion compensation Methods and systems for PMD compensation in an optical communication system are implemented by transmitting multiple optical signals through a common optical conduit to an optical compensator that adjustably rotates the polarization states of the multiple optical si... | 11/13/2007 |
| 7292747 | Strictly non-blocking switch core having optimized switching architecture based on reciprocity conditions A switch core is set forth that comprises a plurality of duplex switches that are interconnected with a interconnection fabric to implement, for example, strictly non-blocking operation of the switch core for reciprocal traffic. In one embodiment, an N-way reciproca... | 11/06/2007 |
| 7280264 | Magneto-optical device It is possible to reduce the size of a magneto-optical device, increase the speed of optical control, simplify power supply structure and its control, and maintain a Faraday rotation angle in an arbitrary state even after shut-off of the excitation current. The magn... | 10/09/2007 |
| 7274881 | Optical line terminal and method that store the identity numbers of a number of optical network terminals that are associated with a single network end point The memory of the optical line terminal (OLT) of a broadband passive optical network (BPON) is increased to store, in addition to an active identity number, such as the serial number, of the current optical network terminal (ONT) connected to a network end point, a ... | 09/25/2007 |
| 7259913 | Faraday rotator for high output lasers A Faraday rotator in which the isolation function based on a temperature rise is not deteriorated even when the Faraday rotator is used for a high output laser of not smaller than 1W output at a wavelength of not larger than 1.1 μm includes sapphire crystals or rut... | 08/21/2007 |
| 7253956 | Optical isolator element, a method for producing such an element, and an optical isolator using such an element An optical isolator is constructed such that an optical isolator element in which at least one flat Faraday rotator and at least two flat polarizers are bonded to each other into an integral unit by van der Waals forces or hydrogen-bonding forces acting between bond... | 08/07/2007 |
| 7239395 | Optical interrogation systems with reduced parasitic reflections and a method for filtering parasitic reflections According to one aspect of the present invention the optical interrogation system comprises: (i) an optical sensor capable of immobilizing biological, bio-chemical and/or chemical substance; and (ii) an optical isolator that filters and eliminates parasitic reflecti... | 07/03/2007 |
| 7233672 | Constant modulation for enhancing QKD security A method of improving the security of a QKD system is disclosed. The QKD system exchanges qubits between QKD stations, wherein the brief period of time surrounding the expected arrival time of a qubit at a modulator in a QKD station defines a gating interval. The me... | 06/19/2007 |
| 7224854 | System, method, and computer program product for structured waveguide including polarizer region An apparatus, method, computer program product, and propagated signal for a transport. The transport including: a waveguide including a guiding region and one or more bounding regions for enhancing containment of transmitted radiation within the guiding region, the ... | 05/29/2007 |
| 7224506 | Single side band modulation device A single side band modulation device includes a first Mach Zehnder interferometer and a second Mach Zehnder interferometer. The first Mach Zehnder interferometer includes at least two output arms, and the second Mach Zehnder interferometer includes at least two outp... | 05/29/2007 |
| 7224861 | Strictly non-blocking switch core having optimized switching architecture based on reciprocity conditions A switch core is set forth that comprises a plurality of duplex switches that are interconnected with a interconnection fabric to implement, for example, strictly non-blocking operation of the switch core for reciprocal traffic. In one embodiment, an N-way reciproca... | 05/29/2007 |
| 7212326 | Optical external modulator An optical external modulator includes an optical waveguide having a first interferometer section and a second interferometer section formed on an electro-optic substrate. An electrode structure disposed on the substrate transmits an RF drive signal that is applied ... | 05/01/2007 |
| 7209284 | Optical amplifier using reflection-type variable optical attenuator for feedback An optical apparatus which is reduced in the number of optical devices arranged on a main optical signal transmission path, thereby reducing the size and cost of the device, and which is improved in optical transmission quality. An optical amplifier includes an ampl... | 04/24/2007 |
| 7206517 | Monitoring and in-line compensation of polarization dependent loss for lightwave systems A multi-wavelength optical signal copropagates through a fiber-optic communication link with a continuous-wave ancillary wavelength having an unknown state of polarization (SOP), which is scrambled periodically in time. The instantaneous value of polarization depend... | 04/17/2007 |
| 7196744 | Optical transceiver package with a liquid crystal variable optical attenuator A liquid crystal optical attenuator is provided that is used to control the intensity of a light signal. The optical attenuator includes at least one polarizing element having an optical polarization axis, wherein the polarizing element transmits a portion of a ligh... | 03/27/2007 |
| 7187496 | Manufacturing method of optical device, optical device, manufacturing method of faraday rotator, and optical communication system There are provided a manufacturing method of an optical device excellent in expediency, and a technique for stably manufacturing a high performance optical device. After a single crystal film which constitutes a Faraday rotator and can exhibit a substantially rectan... | 03/06/2007 |
| 7183765 | Micro-position sensor using faraday effect A micro-position sensor and sensing system using the Faraday Effect. The sensor uses a permanent magnet to provide a magnetic field, and a magneto-optic material positioned in the magnetic field for rotating the plane of polarization of polarized light transmitted t... | 02/27/2007 |
| 7173762 | Optical isolator with reduced insertion loss and minimized polarization mode dispersion An isolator is disclosed that features a single birefringent correction element. The correction element is configured to eliminate differential group delay and walk-off simultaneously. ... | 02/06/2007 |
| 7170921 | Magneto-optic variable optical attenuator A magneto-optic variable optical attenuator is provided that is used to control the intensity of a light signal. The optical attenuator includes at least one polarizing element having an optical polarization axis, wherein the polarizing element transmits a portion o... | 01/30/2007 |
| 7162136 | Non-circular, mechanically variable optical attenuator A non-circular, mechanically variable optical attenuator using a pair of specially constructed polarizing elements with means enabling a gradual transition from un-crossed polarization vector fields to crossed polarization vector fields using a linear motion with re... | 01/09/2007 |
| 7158301 | Method and device for modifying the polarization state of light A magnetic, single-axis crystal is used to modify the polarization state of light, whereby light passes through pre-determined areas of the crystal. To change the polarization state of the light, a magnetic field pulse is applied to the crystal with a magnetic field... | 01/02/2007 |
| 7154659 | Optical depolarizers and DGD generators based on optical delay Techniques and devices for depolarizing light and producing a variable differential group delays in optical signals. In one implementation, an input optical beam is split into first and second beams with orthogonal polarizations. One or two optical reflectors are th... | 12/26/2006 |
| 7142362 | Optical attenuator A low-cost compact optical attenuator structure has an input port and an output port for optical signals arranged side by side; a reflecting member arranged to face both ports to reverse light from the input side on an optical path folded 180°; a birefringence crys... | 11/28/2006 |
| 7133189 | Magnetic garnet material, faraday rotator, optical device, bismuth-substituted rare earth-iron-garnet single-crystal film and method for producing the same and crucible for producing the same Proposed is a technique of producing a magnetic garnet material of which the light absorption characteristics worsen little even though it is produced through LPE. The crucible for LPE is formed of a material containing Au. The amount of Au to be taken in single cry... | 11/07/2006 |
| 7099539 | Optical isolator, attenuator and polarizer system and method for integrated optics An optical system and associated method are provided. Included is a first branch capable of allowing light to pass therethrough in a forward direction and a reverse direction. The first branch includes a first medium with a first refractive index (n1), an... | 08/29/2006 |
| 7097365 | Transceiver assembly for use in fiber optics communications A transceiver assembly includes a frame section, a rigid printed circuit board, a flex circuit, and an edge connector. The frame section includes a flex circuit layer for use in carrying data, and control and power signals, and an optoelectronic device. The rigid pr... | 08/29/2006 |
| 7099534 | Optical transmission device with optical waveguide coupled to optical device An optical waveguide and a first lens are formed on an underlying surface. The optical waveguide guides light along a first direction. The first lens is continuous with one end of the waveguide and converges light radiated from the end plane of the optical waveguide... | 08/29/2006 |
| 7095559 | Variable optical delay circuit In a variable optical delay circuit to be used for compensation for polarization mode dispersion of an optical signal and for other purposes, there are provided a first birefringent member, a second birefringent member and a variable optical rotator interposed betwe... | 08/22/2006 |
| 7081996 | Isolated polarization beam splitter and combiner An isolated polarization beam splitter or combiner, for joining light from different inputs into one common port, and for dividing a beam of light into orthogonal polarizations. In both modes of operation, the splitter/combiner provides isolation preventing transmis... | 07/25/2006 |
| 7075286 | Fiber-optic current sensor An optical current sensor having a reflection interferometer (1, 10) has, in its fiber-optic lead (2), a polarization-maintaining first fiber branch (20) for two forward-traveling orthogonally polarized waves and a polarization-maintaining secon... | 07/11/2006 |
| 7073955 | Transceiver assembly for use in fiber optics communications A transceiver assembly includes a frame section, a rigid circuit board, a flex circuit, and a controller chip. The frame section includes an optoelectronic device containing a set of photoactive components, a signal processing chip for providing drive signals to the... | 07/11/2006 |
| 7071687 | Photomagnetic field sensor A photo magnetic field sensor includes a Faraday rotator made of a paramagnetic material, a polarizer, an analyzer, a light-irradiating element, and a light-sensing element. The Faraday rotator is made of a paramagnetic garnet single crystal including at least Tb an... | 07/04/2006 |
| 7072111 | Reflection-type optical device A reflection-type optical device used for an optical communication system, in which an element structure can be simplified and excellent optical characteristics are obtained. The reflection-type optical device includes a birefringent plate, a magnetic domain A of a ... | 07/04/2006 |
| 7068025 | Compensation of simple fibre optic Faraday effect sensors An electric current measurement device includes a housing defining first and second open ends sealed by first and second sealing means, respectively; a first optical fibre received in an aperture in the first sealing means and in optical communication with a first o... | 06/27/2006 |
