Patents Examined by Tho Phan
  • Patent number: 7342539
    Abstract: The present invention relates to a wireless communication device and an antenna arrangement in such a device, where a loop antenna element (18) comprises: a first section (20) provided in and extending a length in first plane, a second section (22) spaced from, provided in and extending a length in the first plane, a third section (24) in a second plane parallel to the first plane, aligned with the first and second sections, and a fourth (26) and a fifth section (28) interconnecting antenna sections in the first and second planes. The sections form a three-dimensional structure having a substantial two-dimensional extension in at least one of the first and second planes. The second section extends along the same line as the first section or has a curvature, which is a continuation of the curvature of the first section. Thereby a small wideband antenna requiring a small ground plane is obtained.
    Type: Grant
    Filed: October 17, 2003
    Date of Patent: March 11, 2008
    Assignee: Sony Ericsson Mobile Communications AB
    Inventors: Hans Rosenberg, Henrik Jidhage, Bengt Svensson
  • Patent number: 7342541
    Abstract: A mobile telephone that can suppress the deterioration of antenna characteristics caused by a conduction current. It comprises an inverse element 60 provided in a region where, looking from the side of an antenna 50, at least the antenna 50 and a conductive part 21 overlap, disposed between the antenna 50 and the conductive part 21 at prescribed, respective distances from the both, so as to guide a current flowing from the conductive part 21 to flow in the inverse direction to that in which the current flows in the conductive part 21.
    Type: Grant
    Filed: September 14, 2005
    Date of Patent: March 11, 2008
    Assignee: NEC Corporation
    Inventor: Nobuya Harano
  • Patent number: 7339549
    Abstract: A universal mounting assembly that can be attached to both a cylindrical surface and a planar surface is provided according to embodiments of the present invention. The universal mounting assembly includes a top plate, a bottom plate, and a spacer. Both the top plate and the bottom plate have a pair of parallel edge portions and at least one curved edge portion that is disposed between the two parallel edge portions. The curved edge portion on the top and bottom plate contains at least one mounting tab for attaching the universal mounting assembly to a cylindrical support structure. The universal mounting assembly also includes planar mounting brackets located at each intersection of the parallel edge portions and the curved edge portion for mounting to a planar support structure. The top plate and the bottom plate are rigidly affixed to the spacer, which may be annular shaped and used to house electronic components, such as a lightning protection circuit. Other embodiments are also claimed and described.
    Type: Grant
    Filed: July 13, 2006
    Date of Patent: March 4, 2008
    Assignee: Andrew Corporation
    Inventor: James William Maxwell
  • Patent number: 7339550
    Abstract: An antenna for an RFID tag includes each power feeding parts 11 that is formed of a conductor, meandering parts 13a and 13b that are formed of conductors shaped as a pair of meandering lines, connected to the power feeding parts 11, and extend from the power feeding parts 11 toward both ends of the power feeding parts 11, respectively, a pair of radiating parts 14a and 14b that are formed of conductors and connected to outer ends of the pair of meandering parts 13a and 13b, respectively. The meandering parts 13a and 13b include a plurality of sides arranged in a longitudinal direction where the meandering parts 13a and 13b extend. Further, the lengths of portions, where the ends of the radiating parts 14a and 14b facing the meandering parts 13a and 13b face the sides closest to the radiating parts 14a and 14b among the plurality of sides of the meandering parts 13a and 13b in a direction orthogonal to the longitudinal direction, are smaller than the widths of the widest portions of the radiating parts.
    Type: Grant
    Filed: October 27, 2006
    Date of Patent: March 4, 2008
    Assignee: Omron Corporation
    Inventors: Kosuke Hayama, Keisuke Saito
  • Patent number: 7339542
    Abstract: An ultra-broadband antenna system is disclosed. The antenna system is a single tubular antenna structure comprising an asymmetrical dipole fed with a biconical dipole. The biconical dipole covers the high frequency spectrum, while the asymmetrical dipole covers intermediate frequencies. The invention further relates to a combination of the two dipole structures such that together they act as a monopole to cover the low frequency spectrum. A first RF connector attaches to the asymmetrical dipole and the biconical dipole, and a second RF connector excites the combination of the two dipoles as one large monopole. A choke minimizes interference between the asymmetrical/biconical dipoles and the monopole. The resulting frequency span is greater than 500:1, providing operation over the range of 20 MHz to 10 GHz.
    Type: Grant
    Filed: December 12, 2005
    Date of Patent: March 4, 2008
    Assignee: FIRST RF Corporation
    Inventor: Farzin Lalezari
  • Patent number: 7336035
    Abstract: The present invention is to provide a light emitting device capable of obtaining a certain luminance without influence by the temperature change, and a driving method thereof. A current mirror circuit formed by using a transistor is provided for each pixel. The first transistor and the second transistor of the current mirror circuit are connected such that the drain currents thereof are maintained at proportional values regardless of the load resistance value. Thereby, a light emitting device capable of controlling the OLED driving current and the luminance of the OLED by controlling the drain current of the first transistor at a value corresponding to a video signal in a driving circuit, and supplying the drain current of the second transistor to the OLED, is provided.
    Type: Grant
    Filed: June 2, 2004
    Date of Patent: February 26, 2008
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventor: Jun Koyama
  • Patent number: 7336239
    Abstract: A small multi-mode antenna in which a single feeding point can be used commonly for multiple frequencies and an RF module using such antenna for use in less-costly and small multimedia wireless apparatus is provided. The antenna is configured such that a single feeding point 4 which is common for multiple frequencies is set up at one end of a radiating conductor 1, a first one-port resonant circuit 2 is connected to the one end thereof, and a second one-port resonant circuit 3 is connected to the other end of the radiating conductor 1. With a conductance component of admittance in view from the feeding point 4 toward free space equaling the characteristic admittance in the RF circuit, a susceptance component of the admittance is canceled out by the resonant circuit 2 connected to the feeding point 4 for multiple frequencies.
    Type: Grant
    Filed: October 15, 2002
    Date of Patent: February 26, 2008
    Assignee: Hitachi, Ltd.
    Inventor: Ken Takei
  • Patent number: 7336234
    Abstract: An antenna apparatus includes a monopole antenna forming an antenna element having a metal shell body, and the antenna element has an approximately conical part, a vertex of which is on the side of a power supply part.
    Type: Grant
    Filed: December 23, 2005
    Date of Patent: February 26, 2008
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Yutaka Taguchi, Hideki Kusunoki, Toshiyasu Tanaka
  • Patent number: 7333065
    Abstract: The specification discloses a modular antenna for automotive vehicles. The antenna includes a base assembly that can be used on a variety of vehicle platforms and a radome assembly that is specific to a particular vehicle platform. The radome assembly snap-fits onto the base assembly, and can be installed during or after vehicle assembly. A wide variety of radome assemblies of different shapes, styles, and colors can be used in conjunction with a single base assembly.
    Type: Grant
    Filed: November 10, 2005
    Date of Patent: February 19, 2008
    Assignee: Receptec Holdings, LLC
    Inventors: Ralf Lindackers, Hasan Yasin, Andreas D. Fuchs, Ayman Duzdar
  • Patent number: 7333067
    Abstract: A multi-band antenna (100) used in wireless communications includes a first radiating patch (20) arranged in a first plane and extending in a first direction, a second radiating patch (22) arranged in the first plane and extending in a second direction different from the first direction, a grounding portion (1) arranged in second plane parallel to the first plane, and an inverted F-shaped connecting portion (3) connecting the first and the second radiating patches and the grounding portion. The radiating patches define a plurality of slots (201, 202) for increasing a bandwidth of the antenna. The connecting portion defines a rectangular slot (35) for adjusting an impedance matching of the antenna.
    Type: Grant
    Filed: December 30, 2004
    Date of Patent: February 19, 2008
    Assignee: Hon Hai Precision Ind. Co., Ltd.
    Inventors: Chen-Ta Hung, Lung-Sheng Tai, Hsien Chu Lin, Yun-Lung Ke
  • Patent number: 7327316
    Abstract: An antenna system is described that includes a radiating element, a feed point configured for electrical connection to the radiating element, and a grounding point configured for electrical connection to the radiating element. At least one of the feed point and the grounding point are configured to accommodate a range of distances between the electrical connections to the radiating element.
    Type: Grant
    Filed: September 19, 2005
    Date of Patent: February 5, 2008
    Assignee: Tyco Electronics Corporation
    Inventors: Eric Peter Geoca, Thomas R. Schleef
  • Patent number: 7327320
    Abstract: The invention relates to a compact and robust broadband antenna, for the frequency range from about 800 MHz up to 9 GHz, in particular, for use on railways. The antenna includes a monopole antenna element, extending in a longitudinal direction essentially parallel to and at a distance above a planar electrically-conducting base plate, between two opposing ends of the antenna element. The antenna element is electrically connected to the base plate at the first end thereof and is insulated from the base plate at the second end thereof, creating an injection point by means of which the antenna element may be connected to a device operating at high frequency.
    Type: Grant
    Filed: October 25, 2005
    Date of Patent: February 5, 2008
    Assignee: Huber + Suhner AG
    Inventor: Cédric Dejean
  • Patent number: 7327324
    Abstract: A resonant monopole slot antenna comprising a ground plane, having a radiating slot which is dimensioned such that the slot is equivalent electromagnetically to an odd number of quarter wavelengths at the antenna's operating frequency, wherein the antenna's feed is arranged at the open end of the radiating slot.
    Type: Grant
    Filed: December 16, 2002
    Date of Patent: February 5, 2008
    Assignee: Nokia Corporation
    Inventors: Hanyang Wang, Ming Zheng, Su Qing Zhang, Alan Johnson
  • Patent number: 7327317
    Abstract: The invention relates to a dual polarised microstrip patch antenna comprising at least one individual element, each individual element comprising at least one rectangular, preferably quadratic, patch arranged on the upper face of a printed circuit board, having a feed network on the upper side thereof and being metallized on the entire surface of the lower face thereof. The aim of the invention is to improve the polarization isolation, while simultaneously simplifying the feed network. To this end, the feed network is embodied in such a way that the feed is only fed on two corners of the patch, and the at least one patch is modified in such a way that the isolation is improved between the polarizations of at least one antenna element and a plurality of individual antenna elements in relation to a non-modified patch.
    Type: Grant
    Filed: January 13, 2006
    Date of Patent: February 5, 2008
    Assignee: Huber + Suhner AG
    Inventor: Markus Heiniger
  • Patent number: 7324058
    Abstract: A communication distance difference due to an attached object can be canceled, and an RFID system can be provided which has approximately the same communication distance regardless of an attached position (surface) of a tag. A tag antenna used for such the RFID system is for transmitting/receiving a radio signal to/from an RFID reader/writer in an RFID system has a pair of antenna elements centered on a feeding point and when a carrier wavelength of the radio signal is ?, each of the pair of the antenna elements includes a dipole portion which has a length from the feeding point of approximate ?/4 and a plurality of bending portions as well as a circular polarized wave generation portion linked to an end of the dipole portion.
    Type: Grant
    Filed: February 8, 2006
    Date of Patent: January 29, 2008
    Assignee: Fujitsu Limited
    Inventors: Manabu Kai, Toru Maniwa, Takashi Yamagajo
  • Patent number: 7324063
    Abstract: In a helical antenna to be installed inside a mobile communication terminal, for processing low-bandwidth signals, a substrate is made of magnetic dielectric material, a plurality of lower electrodes are disposed on the underside of the substrate, and a plurality of upper electrodes are disposed on the top of the substrate. The upper electrodes are inclined with respect to the lower electrodes, respectively, at a predetermined angle. A plurality of side electrodes electrically connect the lower electrodes with the upper electrodes, respectively. At least a part of a magnetic moment vector, which is formed around each of the lower electrodes by a current flowing in the each lower electrode, is directed in parallel with a current flowing in each of the upper electrodes corresponding to the each lower electrode.
    Type: Grant
    Filed: May 15, 2006
    Date of Patent: January 29, 2008
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Seok Bae, Jae Suk Sung, Mano Yasuhiko
  • Patent number: 7324049
    Abstract: A miniaturized ultra-wideband microstrip antenna, includes: a dielectric substrate; a feed line disposed on the dielectric substrate, and supplying an electromagnetic energy supplied from an external power source; a main radiating element radiating the electromagnetic energy inputted by the feed line; and at least one sub-radiating element disposed in proximity to the main radiating element for multi-radiation. Also, the antenna further includes at least one connection plate electrically connecting the main radiating element to at least one of the sub-radiating elements. The miniaturized ultra-wideband microstrip antenna can also be made ultralight, and include additional sub-radiating elements besides the main radiating element, whereby multi-radiation in UWB's range can be attained.
    Type: Grant
    Filed: December 30, 2004
    Date of Patent: January 29, 2008
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Soung-ho Myoung, Do-Hoon Kwon, Seong-soo Lee
  • Patent number: 7321334
    Abstract: A wireless communication module used for a portable electronic device comprises a first antenna module and a second antenna module, which first antenna module has a first antenna for transmitting and receiving of wireless signals, an electronic circuit for coding and decoding of wireless signals, and a detector for detecting of signal intensity, and which second antenna module has a signal transmission line and a second antenna for transmitting and receiving of wireless signals; the first antenna module connects to the second antenna module via the signal transmission line of the second antenna mode to have the detector of the first antenna module can detect and compare the signal intensity of the first and second antennas, when a weaker signal is detected at the first antenna of the first antenna module, the signal transmission/receiving task is actively shifted to the second antenna of the second antenna module; the wireless signal received by the first antenna of the first antenna module or by the second a
    Type: Grant
    Filed: January 18, 2006
    Date of Patent: January 22, 2008
    Assignee: Compal Electronics, Inc.
    Inventor: Jen-Huan Yu
  • Patent number: 7321336
    Abstract: A mobile wireless communications device may include a housing, a printed circuit board (PCB) carried by the housing, at least one wireless RF circuit carried by the PCB, and a first contact(s) carried by the PCB and electrically connected to the at least one wireless RF circuit. The device may further include a wrap-around antenna assembly comprising an antenna retainer frame removably coupled to an edge of the PCB and having first and second portions wrapping around adjacent first and second surfaces of the PCB at the edge thereof when the antenna retainer frame is coupled to the PCB. The wrap-around antenna assembly may also include an antenna carried by the antenna retainer frame and extending along the first and second portions thereof. The antenna may include a second contact(s) removably coupled to the first contact(s) when the antenna retainer frame is coupled to the PCB.
    Type: Grant
    Filed: October 31, 2006
    Date of Patent: January 22, 2008
    Assignee: Research in Motion Limited
    Inventors: Robert Phillips, Yihong Qi, Ying Tong Man
  • Patent number: 7317427
    Abstract: An adaptive antenna array has array elements arranged in element rows and element columns and subarrays arranged in subarray rows and subarray columns, for which the subarray phase centers have non-uniform spacing. The adaptive antenna array provides good detection and tracking performance when used in a radar system, while being inexpensive and easy to manufacture. A radar system and a method of adapting a radar array both employ the above described adaptive antenna array.
    Type: Grant
    Filed: January 25, 2005
    Date of Patent: January 8, 2008
    Assignee: Raytheon Company
    Inventors: Barbara E. Pauplis, Edward A. Seghezzi, W. Timothy Carey