Patents Examined by John Ning
-
Patent number: 5847508Abstract: An integrated starting and running amalgam assembly for an electrodeless SEF fluorescent lamp includes a wire mesh amalgam support constructed to jointly optimize positions of a starting amalgam and a running amalgam in the lamp, thereby optimizing mercury vapor pressure in the lamp during both starting and steady-state operation in order to rapidly achieve and maintain high light output. The wire mesh amalgam support is constructed to support the starting amalgam toward one end thereof and the running amalgam toward the other end thereof, and the wire mesh is rolled for friction-fitting within the exhaust tube of the lamp. The positions of the starting and running amalgams on the wire mesh are jointly optimized such that high light output is achieved quickly and maintained, while avoiding any significant reduction in light output between starting and running operation.Type: GrantFiled: October 3, 1994Date of Patent: December 8, 1998Assignee: General Electric CompanyInventors: Joseph Christopher Borowiec, John Paul Cocoma, Victor David Roberts
-
Patent number: 5835526Abstract: In accordance with the invention the channel equalization factors in a communication system can be calculated at a base station and transmitted to a mobile station in order to effect the equalization at reception. Alternatively, the channel equalization can be effected at the base station also in connection with the transmission to the mobile station, in addition to the normal equalization made at reception. The construction of the mobile station is simplified when the channel equalizer or the calculation of the equalization factors can be omitted.Type: GrantFiled: November 30, 1995Date of Patent: November 10, 1998Assignee: Nokia Mobile Phones Ltd.Inventor: Juhani Juntti
-
Patent number: 5684359Abstract: A discharge lamp and an illumination instrument for general illumination which is able to reproduce a preferable skin color of Japanese women by an illumination light, in relation to the skin test color of Japanese women, which is important for general illumination, and is characterized in that, when the color point of the skin test color No. 15 for calculating the color rendering index according to JIS Z 8726-1990 under the light of the discharge lamp is converted to the color point under the standard illuminant CIE D65 using the CIE chromatic adaptation equation, the color point is in the elliptical region of which the major axis is 0.0068, the minor axis is 0.0037 and the inclination from the u' axis is 40.degree., centering around (u',v')=(0.2425, 0.4895) on the CIE 1976 u'v' chromaticity diagram.Type: GrantFiled: June 6, 1995Date of Patent: November 4, 1997Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Tadashi Yano, Kenjiro Hashimoto, Makoto Inohara
-
Patent number: 5668433Abstract: An electrodeless fluorescent lamp comprises a sealed lamp vessel containing a fill capable of sustaining a discharge when suitably excited. The fill is excited by an RF electromagnetic field produced by a winding energized by an RF oscillator powered via a rectifier from the mains. To confine the RF field within the vessel a conductive coating FTO is provided inside the vessel. To at least reduce conducted interference a conductive coating A1 is provided on the outside of the vessel G. The coating A1 is electrically coupled (e.g., via 7) to RF ground which may be one side of the mains. An electrically insulative housing covers the coating A1. The housing which extends to a zone of maximum diameter of the vessel may grip the vessel.Type: GrantFiled: December 15, 1994Date of Patent: September 16, 1997Assignee: General Electric CompanyInventors: Steven J. Everest, Basil Antonis
-
Patent number: 5644407Abstract: An image display control method for controlling an image display unit having a first memory for storing a plurality of images from a remote location through a predetermined line includes the steps of receiving first data for indicating an image to be displayed and second data indicating a time to display the image indicated by the first data through the predetermined line, and storing the received first data and second data in a second memory. In addition, the image indicated by the first data from the first memory is read when the time indicated by the stored second data is reached and the image on the image display unit is displayed.Type: GrantFiled: December 20, 1991Date of Patent: July 1, 1997Assignee: Canon Kabushiki KaishaInventors: Asao Watanabe, Yukihiko Ogata, Hiroyuki Nakanishi, Seijiro Yanase, Koji Harada
-
Patent number: 5636037Abstract: A modem unit includes a data communication modem having data communication functions, a facsimile communication modem having facsimile communication functions, and a controller which is coupled to the data communication modem and the facsimile communication modem. The controller controls the data communication modem and the facsimile communication modem so that non-image facsimile data is communicated via the data communication modem and image facsimile data is transferred via the facsimile communication modem. Communication time is thus shortened through the provision of both the data communication modem and the facsimile communication modem in communicating facsimile data.Type: GrantFiled: September 2, 1994Date of Patent: June 3, 1997Assignee: Ricoh Company, Ltd.Inventor: Kazuhito Saitoh
-
Patent number: 5631525Abstract: In an electron storage ring apparatus comprising at least two bending magnet units for defining an electron beam orbit of an arc shape, each of the bending magnet units comprises D-shaped upper and lower coil members each of which has an arc-shaped portion. Upper and lower yokes have grooves for entirely receiving the D-shaped upper and the D-shaped lower coil members, respectively.Type: GrantFiled: March 20, 1995Date of Patent: May 20, 1997Assignee: Sumitomo Heavy Industries, Ltd.Inventor: Eijiro Toyota
-
Patent number: 5623181Abstract: Disclosed is a multi-layer type light emitting device including: at least two light emitting sources disposed to be multi-layered; and an optical surface disposed so as to correspond to each of the light emitting sources excluding one positioned at the rearmost stage for forwardly reflecting rays of light emitted by the light emitting source and transmitting rays of light emitted by the light emitting source disposed at the rear stage. With this device, rays of light emitted by each of the light emitting sources excluding one positioned at the rearmost stage are reflected from the corresponding optical surface and radiated forwardly. In this case, when a different optical surface is disposed on the front stage, the rays of light transmit the optical surface and are radiated to the exterior.Type: GrantFiled: March 23, 1995Date of Patent: April 22, 1997Assignee: Iwasaki Electric Co., Ltd.Inventors: Yoshinobu Suehiro, Shigeru Yamazaki, Takashi Sato
-
Patent number: 5621272Abstract: An electron emitter plate (110) for an FED image display has an extraction (gate) electrode (22) spaced by an insulating spacer (125) from a cathode electrode including a conductive mesh (18). Arrays of microtips (14) are located in mesh spacings (16), within apertures (26) formed in extraction electrode (22) and subcavities (141) formed through apertures (26) in insulating spacer (125). Subcavities (141a) are open to row-adjacent and column-adjacent subcavities (141b, 141c) to form larger main cavities (144). Posts (143) of insulating spacer (125) separate diagonally-adjacent cavities (141d). Subcavities (141) are formed by over-etching a layer of insulating spacer material (25) through apertures (26) before or after forming microtips (14) through the same apertures (26). Over-etching reduces the dielectric constant factor of gate-to-cathode capacitance in the finished structure.Type: GrantFiled: May 30, 1995Date of Patent: April 15, 1997Assignee: Texas Instruments IncorporatedInventors: Jules D. Levine, Kenneth G. Vickers
-
Patent number: 5615229Abstract: A short range magnetically coupled wireless communication system employs time variant modulation of a high repetition rate pulse stream and magnetic coupling between a transmission magnetic element and a receiving magnetic element. The pulse stream is modulated by an input audio frequency signal in the time domain, for example, through pulse position modulation, pulse width modulation or pulse symmetry modulation. The receiving magnetic element is coupled to a demodulator circuit which detects the transmitted pulses induced in the receiving magnetic element and reproduces the audio frequency signal. Transmission over short range is thus efficiently accomplished through magnetic coupling in a simple, low cost, low power consumption communication system.Type: GrantFiled: July 2, 1993Date of Patent: March 25, 1997Assignee: Phonic Ear, IncorporatedInventors: Madan M. Sharma, Robert F. Young, Gene M. Strohallen
-
Patent number: 5610473Abstract: A color cathode-ray tube comprises a mask unit arranged between a face panel and an electron gun. The mask unit comprises a shadow mask and a mask frame supporting the shadow mask with being applied with tension. The shadow mask is formed of a substantially rectangular thin plate, arranged to face a phosphor screen formed on an inner surface of the face panel, and has a number of electron beam apertures through which electron beams emitted from the electron gun pass. The mask frame comprises a substantially rectangular frame body which has a pair of first sidewalls facing each other and a pair of second sidewalls facing each other, and a pair of mask fixing sections secured to a pair of opposite side edge portions of the shadow mask and extending along the side edge portions.Type: GrantFiled: June 7, 1995Date of Patent: March 11, 1997Assignee: Kabushiki Kaisha ToshibaInventors: Masahiro Yokota, Tadahiro Kojima, Shuuji Makimoto
-
Patent number: 5610476Abstract: A fluorescent tube which is used for bulb-type fluorescent lamps is spirally wound, so that the effective length of the tube is increased. While a fluorescent tube is kept vertical, it is rotated and heated evenly at the part to be wound to a glass softening temperature or above by a heating device. The rotation of the fluorescent tube is stopped, and the part which is not facing a rod are heated. Then, the tube is clamped from a horizontal direction by a pair of clamps, and is wound around the rod at least 2.5 times by rotating the clamp arms in opposite directions while the arms gradually shift away from each other.Type: GrantFiled: March 17, 1995Date of Patent: March 11, 1997Assignee: Matsushita Electronics CorporationInventors: Toshiyoshi Oga, Masaru Saito, Shunji Asai
-
Patent number: 5610471Abstract: A field emission device (100) uses single crystals in order to eliminate grain boundaries within some or all of the electrodes (103, 104, and 205). The elimination of grain boundaries reduces susceptibility to damage, improves stability of the device (100), and improves uniformity and reproducibility among devices. In a preferred embodiment, the emitter and gate electrodes (103 and 104 respectively) are formed from a single crystal thin film (302). In other embodiments, other structures are employed wherein one or more of the electrodes (103, 104, and 205) are formed from single crystals.Type: GrantFiled: March 22, 1995Date of Patent: March 11, 1997Assignee: Varian Associates, Inc.Inventors: Steve G. Bandy, Clifford K. Nishimoto, Christopher Webb, Ross A. LaRue
-
Patent number: 5610472Abstract: A neon lamp assembly includes a housing having a cavity with an aperture for emission of light, a neon lamp mounted within the cavity in the housing for emission of light through the aperture and a lens covering the aperture in the housing. Connectors are secured to opposite ends of the neon lamp. Each connector includes a resilient boot that is positioned in a recess in the housing. The resilient boot locates the lamp in the housing and cushions the lamp against shock and vibration. The neon lamp assembly further includes a light-transmissive, conductive mesh covering the aperture in the housing for substantially blocking the emission of RF energy from the housing, and an electrical conductor for coupling the conductive mesh to a reference potential, such as ground. The neon lamp is typically used as a stop light in a vehicle.Type: GrantFiled: October 25, 1994Date of Patent: March 11, 1997Assignee: Osram Sylvania Inc.Inventor: Robert J. Schmitt, Jr.
-
Patent number: 5606216Abstract: A color cathode-ray tube has an in-line type electron gun. Third, fourth, and fifth electrodes form a sub-main lens, and a sixth electrode forms a main lens with the fifth electrode for focusing the three electron beams onto the phosphor screen. The second and fourth electrodes are electrically connected together and the third and fifth electrodes are electrically connected together. A ratio A of an axial length of the fourth G4 electrode to a diameter of the opening of the fourth electrode and a ratio B of an axial length of the fifth G5 electrode to the diameter of the opening of fourth electrode satisfy the following equations: 54A-5B+4.ltoreq.0, 55A-5B+7.gtoreq.0, A-0.18.gtoreq.0, and 95A+10B-73.gtoreq.0.Type: GrantFiled: March 2, 1995Date of Patent: February 25, 1997Assignees: Hitachi, Ltd., Hitachi Device Engineering Co., Ltd.Inventors: Go Uchida, Shoji Shirai, Takashi Kinami, Noboru Mizukami
-
Patent number: 5604394Abstract: It is an object of the present invention to provide an image display apparatus which is light and thin and is manufactured with reduced cost and which assures a clear image with no luminance unevenness over the entire screen. The image display apparatus includes: a string like hot cathode for emitting electrons; a perforated cover electrode for leading out and accelerating the electrons emitted from the cathode; a control electrode disposed substantially parallel with the cathode and having an electron-pass aperture permitting an electron beam to pass therethrough, the control electrode being adapted to control the electron beam; a luminous element which emits light when irradiated with the electron beam and is disposed on a curved surface; and a focusing electrode disposed between the control electrode and the luminous element, the focusing electrode being divided into focusing electrodes.Type: GrantFiled: July 6, 1994Date of Patent: February 18, 1997Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Masato Saito, Ryo Suzuki, Tetsuya Shiroishi, Kouichi Sakurai, Yoshio Yamane, Hidenobu Murakami
-
Patent number: 5604398Abstract: Disclosed is an electroluminescence light-emitting device for generating an optical wavelength, comprises a substrate; an ITO layer coated on the substrate, at lest two light-emitting layers sequentially formed on the ITO layer and having a different band gap, and a metal electrode formed on an upper light-emitting layer of the at least two light-emitting layers, wherein the ITO layer is used as an anode and the metal electrode is used as a cathode.Type: GrantFiled: December 19, 1994Date of Patent: February 18, 1997Assignee: Electronics and Telecommunications Research InstituteInventors: Tae-Hyoung Zyung, Jang-Joo Kim, Wol-Yon Hwang
-
Patent number: 5602443Abstract: A thin flat cathode-ray tube can optimize stress which is generated in each part also when its screen size is increased and maintains high reliability particularly in connection strength in a joint portion between a front glass vessel and a back metal vessel, without deteriorating the joint portion in reliability also in working for mounting electric signal input terminals and an exhaust pipe on the back metal vessel. In the flat cathode-ray tube which is formed by joining side surface portions of the front glass vessel and the back metal vessel with each other, the back metal vessel has the side surface portion of a prescribed width extending along that of the front glass vessel and a bottom surface portion opposed to a fluorescent screen of the front glass vessel, while the bottom surface portion is depressed by a prescribed amount toward the fluorescent portion and a corner portion connecting the side surface portion with the bottom surface portion is at a prescribed radius of curvature.Type: GrantFiled: July 7, 1995Date of Patent: February 11, 1997Assignee: Mitsubishi Denki Kabushiki KaishaInventors: Shunichi Igeta, Akira Inoue, Minoru Hojo, Hiroo Kobayashi, Shiro Takada, Masayuki Miyazaki, Akio Inoue
-
Patent number: 5600202Abstract: A green-emitting phosphor of Tb-activated oxide, which is represented by the compositional formula:(Y.sub.l-x-y-z Tb.sub.x Yb.sub.yD.sub.z).sub.3 (Al.sub.l-w Ga.sub.w).sub.5 O.sub.12wherein D is at least one element selected from the group consisting of Sc and La, and x, y, z and w are numbers satisfying the following conditions:1.times.10.sup.-2 .ltoreq.x.ltoreq.2.times.10.sup.-11.times.10.sup.-6 .ltoreq.y.ltoreq.2.times.10.sup.-21.times.10.sup.-4 .ltoreq.z.ltoreq.5.times.10.sup.-10.ltoreq.w.ltoreq.1,and which contains from 1.times.10.sup.-5 to 1.times.10.sup.-2 gram atom of barium element per mol of the phosphor and is capable of emitting a color within the following range by CIE chromaticity coordinates:0.325.ltoreq.X.ltoreq.0.3600.540.ltoreq.Y.ltoreq.0.625.Type: GrantFiled: August 30, 1995Date of Patent: February 4, 1997Assignees: Kasei Optonix, Ltd., Hitachi Ltd.Inventors: Tsutomu Yamada, Yasuo Oguri, Takashi Hase, Yasuhiko Uehara, Hisashi Toyama
-
Patent number: 5598057Abstract: A field emission display apparatus is comprised of an emitter plate 2 comprising a plurality of column conductors 9 intersecting a plurality of row conductors 6, and electron emitters 5 at the intersection of each of the row and column conductors. An anode plate 62 is adjacent to the emitter plate 2, the anode plate 62 comprising conductive stripes 50 which are alternately covered by material luminescing in the three primary colors. The conductive stripes 50 covered by the same luminescent material are electrically interconnected to form comb-like structures corresponding to each of the colors. The anode plate 62 contains an active region 58 and the buses 82, 84, 86 have a non-uniform width.Type: GrantFiled: March 13, 1995Date of Patent: January 28, 1997Assignee: Texas Instruments IncorporatedInventor: Kenneth G. Vickers