Phase shifter
An object of the present invention is to provide a phase shifter that produces a plurality of phase shift quantities. Other objects and advantages of the invention will become apparent from the detail... Read More
Inventors: Nakahara, Kazuhiko;, Assignee: Mitsubishi Denki Kabushiki Kaisha (Tokyo, JP) |
Low power wireless communication system employing magnetic control zones
The present invention provides a short range wireless communication system which consumes very little power and which employs relatively simple and inexpensive circuitry for both the transmission and ... Read More
Inventors: Strohallen, Gene Michael; Young, Robert Francis;, Assignee: Phonic Ear Incorporated (Petaluma, CA) |
Bandpass type filter having tri-plate line resonators
One feature of the present invention is to provide a bandpass type filter having a piled structure of a plurality of unit lamination structures each of which is constituted by a first dielectric subst... Read More
Inventors: Miura, Taro; Fujii, Tadao; Nakai, Shinya;, Assignee: TDK Corporation (Tokyo, JP) |
Tunable resonator for microwave oscillators and filters
Accordingly the purpose of the present invention is to overcome the above mentioned drawbacks and indicate an electrically efficient tunable microwave resonator of low cost and at the same time having... Read More
Inventors: De Maron, Lino; Urciuoli, Riccardo;, Assignee: Italtel spa (Milan, IT) |
Asymmetrical trap comprising coaxial resonators, reactance elements, and transmission line elements
Accordingly, an essential object of the present invention is to provide an asymmetrical trap employing a dielectric material coaxial resonator and capable of controlling its anti-resonant frequency. A... Read More
Inventors: Tsunoda, Kikuo;, Assignee: Murata Manufacturing Co., Ltd. (Nagaokakyo, JP) |
Isolating circuit and dielectric filter for use therein
It is an object of the present invention to provide an improved isolating circuit composed of at least two different types of filters, more specifically, the combination of the two different types of ... Read More
Inventors: Komazaki, Tomokazu; Gunji, Katsuhiko; Onishi, Norio; Mashimo, Akira;, Assignee: Oki Electric Industry Co., Ltd. (Tokyo, JP) |
Antenna switching circuit employing FETs for reduced power consumption
OF THE PREFERRED EMBODIMENTS FIG. 1 is a circuit diagram of an embodiment of the invention. Referring to FIG. 1, the antenna switching circuit of this embodiment comprises first and second amplifiers... Read More
Inventors: Katsuyama, Tsutomu; Ando, Hiroshi;, Assignee: Oki Electric Industry Co., Ltd. (Tokyo, JP) |
Method and apparatus for increasing amplifier efficiency
OF THE PREFERRED EMBODIMENTS The present invention encompasses a transmitter having amplifying circuitry for amplifying an input signal into an amplified output signal and control circuitry for contr... Read More
Inventors: Alberth, Jr., William P.; Janssen, John J.; Klomsdorf, Armin;, Assignee: Motorola, Inc (Schaumburg, IL) |
RF duplexer bypassing techniques for transceivers
Improved RF switching techniques operate in conjunction with a transceiver that includes an RF power amplifier, an antenna, receiver circuitry, a duplexer filter, and a DC voltage source. The duplexer... Read More
Inventors: Fok, Wilson;, Assignee: Lucent Technologies Inc. (Murray Hill, NJ) |
Transfer gate with the improved cut-off characteristic
Accordingly, an object of the present invention is to provide a transfer gate with such a structure that where a high voltage in excess of a rated voltage is applied to the input node of the transfer ... Read More
Inventors: Ando, Kazumasa; Sakai, Hideo; Sakai, Miki;, Assignee: Kabushiki Kaisha Toshiba (Kawasaki, JP) |
Reliable edge cell array design
The present invention provides several techniques for preventing an active cell array from failing due to various causes such as photolithography and etching effects, contamination, and injected carri... Read More
Inventors: Shrivastava, Ritu; Reddy, Chitranjan N.;, Assignee: |
Fast tuning RF network inductor
An object of the present invention is to provide a controllable, variable inductor usable in an RF network which employs conventional and commercially available parts and has a wide frequency operatin... Read More
Inventors: Nestlerode, C. Dale;, Assignee: Hughes Aircraft Company (Los Angeles, CA) |
Signal cable having parallel arranged shielded conductive lines
The present invention relates to a signal cable comprising a first signal line and a second signal line respectively connected between a first signal device and a second signal device and constructed ... Read More
Inventors: Kamimura, Satoru;, Assignee: |
Multi-level wiring structure of semiconductor device
It is therefore an important object of the present invention to provide a multi-level wiring structure which is free from the over-etching problem inherent in the prior-art wiring structure. To accomp... Read More
Inventors: Hirakawa, Noboru;, Assignee: NEC Corporation (Tokyo, JP) |
Electrode having an improved configuration for a semiconductor element
The present invention has been accomplished in order to solve the technical task as described above, and provides an electrode for a semiconductor element which is made fine and also capable of high s... Read More
Inventors: Ikeda, Osamu; Nakamura, Yoshio;, Assignee: Canon Kabushiki Kaisha (Tokyo, JP) |
Interconnection structure of semiconductor integrated circuit device
Accordingly, it is an object of the invention to promote the mixing at an interface in a connection part between a lower aluminum interconnection layer and an aluminum interconnection layer. Another o... Read More
Inventors: Harada, Shigeru; Arima, Junichi; Fujiki, Noriaki;, Assignee: Mitsubishi Denki Kabushiki Kaisha (Tokyo, JP) |
Method for fabricating a self-aligned multi-level interconnect
The invention overcomes the above-mentioned problems by providing a method for fabricating a self-aligned multi-level interconnect structure. A self-aligned multi-level interconnect structure in accor... Read More
Inventors: Hsu, Sheng T.; Pollachek, Robert G.;, Assignee: Sharp Microelectronics Technology, Inc. (Camas, WA); Sharp Kabushiki Kaisha (Osaka, JP) |
Matrix liquid crystal, display device having testing pads of transparent conductive film
In the liquid crystal display panel thus constructed, probes (or electrodes) are brought into abutment against the testing pads when the scanning signal lines are to be tested. However, the following ... Read More
Inventors: Yamamoto, Hideaki; Shirahashi, Kazuo; Matsumaru, Haruo; Tsukii, Michio;, Assignee: Hitachi, Ltd. (Tokyo, JP) |
Liquid crystal device with metal oxide masking films with breaks between films under metal lead electrodes
In view of the above-mentioned difficulties of the prior art, an object of the present invention is to provide a liquid crystal device provided with a metal light-shielding mask disposed in separation... Read More
Inventors: Ishiwata, Kazuya; Enomoto, Takashi; Yoshioka, Toshifumi;, Assignee: Canon Kabushiki Kaisha (Tokyo, JP) |
Semiconductor integrated circuit device having elements of different switching speeds integrated on a single chip
It is an object of the invention to provide a semiconductor integrated circuit device in which both a demand for an increase in the operational speed of an element and a demand for reducing the influe... Read More
Inventors: Endo, Koichi;, Assignee: Kabushiki Kaisha Toshiba (Kawasaki, JP) |
Liquid crystal display device with TFTS in which pixel electrodes are formed in the same plane as the gate electrodes with anodized oxide films before the deposition of silicon
In order to solve the problems described above, the present invention is directed to provide a liquid crystal display device having excellent display performance. In a liquid crystal display device of... Read More
Inventors: Sasano, Akira; Shirahashi, Kazuo; Matsukawa, Yuka; Taniguchi, Hideaki; Yamamoto, Hideaki; Matsumaru, Haruo;, Assignee: Hitachi, Ltd. (Tokyo, JP) |
Liquid crystal display module and projection-type liquid crystal display device
The above-mentioned structure of the conventional liquid crystal display module has such problems, when a stress is applied to the package (for example, at the time when liquid crystal display modules... Read More
Inventors: Nagata, Tetsuya; Takemoto, Iwao; Miyazawa, Toshio; Saito, Katsutoshi; Iguchi, Atsumu;, Assignee: Hitachi, Ltd. (Tokyo, JP); Hitachi Device Engineering Co., Ltd. (Mobara, JP) |
Method of packaging a semiconductor device with minimum bonding pad pitch and packaged device therefrom
The present invention provides for a package for a semiconductor die having a plurality of bonding pads about its periphery. The package comprising has a plastic molding encapsulating the semiconducto... Read More
Inventors: Chen, C. M.; Chung, James; Lin, K. T.; Maa, Pony; Li, Simon;, Assignee: Advanced Semiconductor Engineering, Inc. (San Jose, CA) |
Method for manufacturing tunable laser
Therefore, the present invention is to provide a method for manufacturing a tunable laser the physical properties of the device structure is stable with no charge in time and also the variation due to... Read More
Inventors: Lee, Bun; Baek, Jong Hyub;, Assignee: Electronics and Telecommunications Research Institute (Daejon-Shi, KR) |
Liquid crystal display device and method of fabricating the same by patterning semiconductor, insulator, and gatelines with single mask
An object of the present invention is to provide a liquid crystal display device and a fabricating method of the same, whereby the fabricating processes are simplified, high product yield is provided,... Read More
Inventors: Wakagi, Masatoshi; Onisawa, Kenichi; Ando, Masahiko; Kaneko, Toshiki; Minemura, Tetsuroh; Okada, Tomohiro;, Assignee: Hitachi, Ltd. (Tokyo, JP) |
Array substrate for display device and manufacturing method thereof
We claim: 1. A method of manufacturing an array substrate for a display device including a plurality of scanning lines on a substrate, thin film transistors each having a first insulator film on a cor... Read More
Inventors: Dohjo, Masayuki; Kawano, Hideo; Kubo, Akira; Shibusawa, Makoto; Iizuka, Tetsuya; Nakai, Tamio; Mori, Kazushige;, Assignee: Kabushiki Kaisha Toshiba (Kawasaki, JP) |
Liquid crystal display device having the driving circuit disposed in the seal area, with different spacer density in driving circuit area than display area
Accordingly, one object of the present invention is to remedy the above disadvantages and to reduce the size of a frame area on the outer periphery of a display area of a liquid crystal display device... Read More
Inventors: Nakamura, Hiroki;, Assignee: Kabushiki Kaisha Toshiba (Kanagawa-ken, JP) |
Device for producing a signal in response to a movement thereon
It is an object of the present invention to provide a device which will produce a signal that is coordinated with movement thereon. Another object of the present invention is to provide a programmer t... Read More
Inventors: Nash, Daniel T.; Savage, Frank A.;, Assignee: |
Apparatus for providing extended versatility in a keyboard-controlled musical instrument in pitch variation, tone alteration characteristics and the like
What is claimed is: 1. A keyboard-operated tone-producing apparatus having, in combination, keyboard means the keys of which are mounted for downward depression to effect tone production in the appara... Read More
Inventors: Tripp, Jeff; Allen, John; Murphy, F. Merrick;, Assignee: |
Electro-mechanical transducer which couples positive acoustic feedback into an electric amplified guitar body for the purpose of sustaining played notes
What is claimed is: 1. A transducer for a musical instrument, the musical instrument having an instrument body through which vibrations can be fed back to the instrument to sustain notes played on the... Read More
Inventors: Hoover, Alan A.; Osborne, Gary T.;, Assignee: |
MEMS 
