Quotables
"It is my heart-warmed and world-embracing Christmas hope and aspiration that all of us, the high, the low, the rich, the poor, the admired, the despised, the loved, the hated, the civilized, the savage (every man and brother of us all throughout the whole earth), may eventually be gathered together in a heaven of everlasting rest and peace and bliss, except the inventor of the telephone. "
Mark Twain ; Christmas greetings, 1890
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 8072299 | Filter A filter includes: a container; at least one barrier, an input device and an output device. The at least one barrier divide the container into at least two resonant cavities. Each resonant cavity has a harmonic oscillators disposed therein. At least one of the harmo... | 12/06/2011 |
| 7956708 | Wideband dielectric waveguide filter A waveguide-type dielectric filter suitable for wideband filter applications made of a metallized dielectric material is provided. The filter includes two or more mutually coupled resonators disposed in a longitudinal manner. The coupling between adjacent resonators... | 06/07/2011 |
| 7675391 | Vertical coupling structure for non-adjacent resonators A vertical coupling structure for non-adjacent resonators is provided to have a first and a second resonators, a dielectric material layer, a first and a second high-frequency transmission lines and at least one via pole. The first and the second resonators respecti... | 03/09/2010 |
| 7659799 | Dielectric waveguide filter with cross-coupling Provided is a dielectric waveguide filter. The filter includes: a multi-layered structure of dielectric substrates having first and second ground planes at its top and bottom; first, second, and third waveguide resonators disposed at multiple layers within the multi... | 02/09/2010 |
| 7573357 | Coupling lines for a YIG filter or YIG oscillator and method for producing the coupling lines A coupling conductor for a YIG filter or YIG oscillator, which may be produced from a metallic foil by eroding, laser cutting and/or etching of a metallic foil. The coupling conductor includes at least one curved section, which at least partially surrounds a YIG ele... | 08/11/2009 |
| 7411475 | Superconductor filter A superconductor filter comprises a plurality of resonance elements arranged between input-output lines formed on a substrate. Metal conductor sections serving to inhibit the spatial coupling between the adjacent resonance elements are arranged between prescribed re... | 08/12/2008 |
| 7355496 | Finline type microwave band-pass filter The present invention relates to a FINLINE type microwave band-pass filter comprising a waveguide provided with an insulating substrate placed in an E plane of the guide and comprising on at least one of the surfaces, conductive inserts electrically connected to the... | 04/08/2008 |
| 7332982 | Waveguide diplexer of electric plane T-junction structure with resonant iris A waveguide diplexer having an electric plane T-junction structure with a resonant iris is disclosed. The waveguide includes: a waveguide having a predetermined shaped cross section; a transmitting filter for preventing to generate a harmonic band and a higher mode ... | 02/19/2008 |
| 7323954 | Dielectric ceramic filter with metal guide-can A dielectric ceramic filter with a metal guide can is provided. The dielectric ceramic filter includes a metal guide can coupled to and projecting from both input/output ends of the dielectric ceramic filter. Alternatively, the dielectric ceramic filter includes: a ... | 01/29/2008 |
| 7321277 | Waveguide directional filter A waveguide directional filter for combining multiple high power UHF television broadcasting transmitters on to a common antenna. The directional filter arrangement includes an input waveguide, an output waveguide and an interconnected cascade assembly of two or mor... | 01/22/2008 |
| 7317365 | Bandpass filter having parallel signal paths A bandpass filter comprises a number of resonators which are arranged between an input and an output of the filter and which are interconnected to form at least two main signal paths that lead from the input to the output. The at least two main signal paths have ove... | 01/08/2008 |
| 7304554 | U-shaped microwave and millimeter wave resonator filter A filter including a body on which a waveguide groove, whose one surface is open, is formed in a U-shape and a plurarity of inductive resonant windows are provided along a longitudinal direction of the waveguide groove at a predetermined interval in the waveguide gr... | 12/04/2007 |
| 7305223 | Radio frequency circuit with integrated on-chip radio frequency signal coupler A radio frequency (“RF”) circuit configured in accordance with an embodiment of the invention is fabricated on a substrate using integrated passive device (“IPD”) process technology. The RF circuit includes at least one RF signal line section and an integrat... | 12/04/2007 |
| 7292123 | Waveguide E-plane RF bandpass filter with pseudo-elliptic response The invention relates to RF bandpass filters with pseudo-elliptic response. In a filter comprising a dielectric substrate placed in E position in a rectangular waveguide and comprising inserts on one of the surfaces of the substrate are placed conductors linked elec... | 11/06/2007 |
| 7283022 | Dual mode ceramic filter A dual mode ceramic filter has an enclosure with two cavities separated by a wall, and two TM dual-mode resonators, each TM dual-mode resonator positioned in a corresponding cavity. Each TM dual-mode resonator has first and second modes, and a body having a central ... | 10/16/2007 |
| 7215225 | Superconductor filter A superconductor filter comprises a plurality of resonance elements arranged between input-output lines formed on a substrate. Metal conductor sections serving to inhibit the spatial coupling between the adjacent resonance elements are arranged between prescribed re... | 05/08/2007 |
| 7196598 | Dielectric waveguide filter with inductive windows and coplanar line coupling The present invention provides a filter exhibiting excellent filter characteristics and having less number of stages. A dielectric substrate (1) has one surface connected to a top conductor (2) and an opposite surface connected to a bottom conductor ( | 03/27/2007 |
| 7142837 | Multiple-section bandpass filter for broadcast communications A multiple-section bandpass filter for broadcast communications includes adjacent waveguide segments with a perpendicular connecting segment between them to form a U-shaped signal path. The waveguide cavities of the segments may be extruded and rectangular in cross ... | 11/28/2006 |
| 7132905 | Input/output coupling structure for dielectric waveguide having conductive coupling patterns separated by a spacer Disclosed is an input/output coupling structure for coupling a printed circuit board with a dielectric waveguide having a dielectric body and a conductive film covering the dielectric body. The coupling structure comprises a first conductive pattern formed on the bo... | 11/07/2006 |
| 7126444 | Multi-layer band-pass filter A multi-layer band-pass filter comprises an unbalanced input, two balanced outputs, and a band-pass filter section provided between the unbalanced input and the two balanced outputs. The band-pass filter section incorporates a plurality of resonators each of which i... | 10/24/2006 |
| 7113060 | Dielectric waveguide filter with inductive windows and coplanar line coupling A dielectric waveguide tube band-pass filter assuming lower characteristic change upon mounting, and having smaller dimensions and lower loss. Conductor layers (2a, 2c) are formed on the top and bottom surfaces of a dielectric substrate (... | 09/26/2006 |
| 7095861 | Audible signaling device with determinate directional radiation An audible signaling device uses one or more digital signal processors to modify the shape of a sound field to put high sound pressure levels only in a predetermined pattern, thus minimizing undesirable high volume levels in adjacent areas. Using digital signal proc... | 08/22/2006 |
| 7084719 | Dielectric resonator filter A direct coupled resonator filter having a plurality of resonant cavities (15) such that they are separated by inner walls (18) and a coupling structure (16) couples two adjoining resonant cavities (15) since the coupling structure is loc... | 08/01/2006 |
| 7068127 | Tunable triple-mode mono-block filter assembly The present invention incorporates triple-mode, mono-block resonators that are tunable. Four novel and unobvious methods of tuning are disclosed. The first tuning method is to mechanically grind areas on three orthogonal faces of the mono-block in order to change th... | 06/27/2006 |
| 7057482 | Electromagnetic filter assemblies An electromagnetic filter assembly includes complimentary first and second blocks (1) and (2) defining two conjoined sections (10), (11) of an electromagnetic waveguide duct. A shim-like electromagnetic filter element (3) is held b... | 06/06/2006 |
| 7040134 | Punch for forging a liquid ejection head A male die for forming a member incorporated in a liquid ejection head is disclosed. Each of a plurality of first forging punches is operable to form a first recess on a metal plate. The first forging punches are arranged at a fixed pitch to form a punch row in a fi... | 05/09/2006 |
| 7011725 | High performance embedded RF filters Embedded, coupled, shaped waveguide resonators having conductive walls sandwiched between two fired green tape stacks, said conductive walls having apertures therein whose size and location determine the degree of coupling. These waveguides are made by forming openi... | 03/14/2006 |
| 7009470 | Waveguide-type dielectric filter Disclosed is a waveguide-type dielectric filter, which comprises a dielectric block, a plurality of resonators formed in the dielectric block, and a coupling portion for adjusting the coupling between the adjacent resonators. The dielectric block includes a pair of ... | 03/07/2006 |
| 6977560 | Input/output coupling structure for dielectric waveguide resonator Disclosed is an input/output coupling structure for a dielectric waveguide resonator to be mounted on a printed circuit board, which comprises; a region defined in the printed circuit board and surrounded by a first conductive film formed on the front surface of the... | 12/20/2005 |
| 6977566 | Filter and method of arranging resonators Provided are a filter and a method of arranging resonators, which enable forming an attenuation pole and thus achieving excellent frequency characteristics. The filter includes a plurality of resonators. An electromagnetic wave enters through an input end into one o... | 12/20/2005 |
| 6965283 | Dielectric resonator device, communication filter, and communication unit for mobile communication base station A dielectric resonator device includes two dielectric resonators resonating in first and second resonant modes and a partitioning plate which partitions the two dielectric resonators. Slits S are provided in the partitioning plate. A magnetic loop of the first reson... | 11/15/2005 |
| 6961597 | Strips for imparting low nonlinearity to high temperature superconductor microwave filters Based on its superconductive properties relating to “nonlineanty,” a conventional HTS strip is divisible into three “domains,” namely, a medial domain and two lateral domains. The nonlinearity associated with the conventional strip's medial domain is conside... | 11/01/2005 |
| 6954122 | Hybrid triple-mode ceramic/metallic coaxial filter assembly A hybrid filter assembly is provided having a first ceramic triple-mode mono-block resonator, a second ceramic triple-mode mono-block resonator and at least one metallic resonator coupled to at least one of the first and second mono-block resonators. Each triple-mod... | 10/11/2005 |
| 6933804 | Radio frequency diplexer An improved radio frequency diplexer has resonators which are associated either with the transmission path or with the reception path, and at least two additional resonators are also provided. The at least two additionally provided resonators form an interconnection... | 08/23/2005 |
| 6927652 | Canonical general response bandpass microwave filter A microwave filter including a plurality of resonator cavities (1, 10) arranged in more than two adjacent rows and more than two adjacent columns; wherein each resonator cavity is coupled with at least a sequential adjacent resonator cavity for providing a ma... | 08/09/2005 |
| 6924718 | Coupling probe having an adjustable tuning conductor A filtering system with a probe for coupling two resonators includes an iris having the probe disposed therein coupled between the two resonators. The probe has a transverse opening for receiving a tuning conductor, and the tuning conductor provides adjustable coupl... | 08/02/2005 |
| 6914501 | High performance embedded RF filters Embedded, coupled, shaped waveguide resonators having conductive walls sandwiched between two fired green tape stacks, said conductive walls having apertures therein whose size and location determine the degree of coupling. These waveguides are made by forming openi... | 07/05/2005 |
| 6904666 | Method of manufacturing microwave filter components and microwave filter components formed thereby A simplified method for forming passive microwave components, such as a filter, and passive microwave components formed by the method. The method includes forming a ceramic insert having a plurality of resonator regions and then die casting an outer casing of a cond... | 06/14/2005 |
| 6879226 | Waveguide quardruple mode microwave filter having zero transmission The invention relates to a quadruple mode microwave filter having coupled cavities with a plurality of transmission zeros, said filter comprising at least one rectangular parallelepiped-shaped quadruple mode cavity, at least two rectangular irises, and two input/out... | 04/12/2005 |
| 6876277 | E-plane filter and a method of forming an E-plane filter An E-plane filter comprises a housing having a waveguide filter channel and a septum defining a plurality of couplers spaced apart along the length of the filter channel, thereby forming a resonator cavity between each adjacent coupler. The portion of the filter cha... | 04/05/2005 |
