Source: http://www.google.com/patents/US8081119?dq=artistshare
Timestamp: 2016-08-25 09:56:37
Document Index: 15915130

Matched Legal Cases: ['Application No. 07741395', 'Application No. 2008', 'Application No. 07706650', 'Application No. 2007', 'Application No. 2007', 'Application No. 2007']

Patent US8081119 - Product including power supply circuit board - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More »Sign inPatentsA product includes a power supply circuit board, which includes a power supply circuit having a stable frequency characteristic which enables communication among various products to be obtained. The product includes a power supply circuit board including a power supply circuit arranged thereon having...http://www.google.com/patents/US8081119?utm_source=gb-gplus-sharePatent US8081119 - Product including power supply circuit boardAdvanced Patent SearchPublication numberUS8081119 B2Publication typeGrantApplication numberUS 12/234,949Publication dateDec 20, 2011Filing dateSep 22, 2008Priority dateApr 26, 2006Fee statusPaidAlso published asCN101416350A, CN101416350B, EP2012388A1, EP2012388A4, EP2012388B1, US20090009007, WO2007125752A1Publication number12234949, 234949, US 8081119 B2, US 8081119B2, US-B2-8081119, US8081119 B2, US8081119B2InventorsNoboru Kato, Ikuhei KIMURAOriginal AssigneeMurata Manufacturing Co., Ltd.Export CitationBiBTeX, EndNote, RefManPatent Citations (223), Non-Patent Citations (30), Referenced by (2), Classifications (32), Legal Events (2) External Links: USPTO, USPTO Assignment, EspacenetProduct including power supply circuit board
US 8081119 B2Abstract
A product includes a power supply circuit board, which includes a power supply circuit having a stable frequency characteristic which enables communication among various products to be obtained. The product includes a power supply circuit board including a power supply circuit arranged thereon having an inductance element, and a wireless communication circuit board electrically connected to the power supply circuit. The wireless communication circuit board is mounted on the power supply circuit board. The product further includes a radiation plate which emits a transmission signal which is supplied from the power supply circuit through electromagnetic field coupling and which has a frequency substantially determined in accordance with a resonant frequency of the power supply circuit, and which is used to supply a reception signal to the power supply circuit through electromagnetic field coupling.
In general, as a product management system, an RFID system includes a reader/writer which generates an induction field, and an IC tag (hereinafter referred to as a “wireless IC device”) which stores therein predetermined information regarding a product. This information is communicated between the reader/writer and the IC tag in a non-contact manner so that the information is transmitted. Examples of a wireless IC device used in an RFID system include devices disclosed in Japanese Unexamined Patent Application Publication No. 2005-136528 and Publication No. 2005-244778.
In order to overcome the problems described above, preferred embodiments of the present invention provide a product including a power supply circuit board which has a power supply circuit having stable frequency characteristics and which enables communication among various types of products (or devices).
In the product including the power supply circuit board according to the preferred embodiments of the present invention, the wireless communication circuit board is electrically connected to the power supply circuit board. Because the power supply circuit board is disposed on the product, the power supply circuit board and the radiation plate are connected to each other through an electromagnetic field connection. A frequency of the transmission signal emitted from the radiation plate and a frequency of a reception signal to be supplied to the wireless communication circuit board are substantially determined in accordance with the resonant circuit of the power supply circuit in the power supply circuit board. Here, these frequencies are “substantially” determined because the frequencies will shift slightly due to the positional relationship between the power supply circuit board and the radiation plate. That is, since the frequency of the transmission signal and the reception signal are determined by the power supply circuit board connected to the wireless communication circuit board, frequency characteristics are not changed due to a shape, a size and an arrangement position of the radiation plate, that is, frequency characteristics are not changed even when the radiation plate is rolled or is sandwiched between dielectric bodies. Accordingly, stable frequency characteristics are attained. Consequently, communication among various products (devices) is achieved.
FIGS. 1A and 1B are block diagrams illustrating basic configurations of a power supply circuit and a wireless communication circuit which are included in a product according to preferred embodiments of present invention.
Preferred embodiments of a product including a power supply circuit board according to the present invention will be described hereinafter with reference to the accompanying drawings. Note that components used in various wireless communication circuit boards, various power supply circuit boards, and various products in common are denoted by identical reference numerals, and therefore, redundant descriptions thereof are omitted.
Note that although the power supply circuit 16 and the radiation plate 20 are connected to each other mainly through magnetic field coupling, electric field coupling may be used. In the present invention, the term “electromagnetic field coupling” means connection via an electric field and/or magnetic field.
Refer to FIG. 41 As shown in FIG. 41, a first preferred embodiment preferably is applied to an automobile 200, and a car body 201 of the automobile 200, which is made of a steel plate, for example, is used as a radiation plate. The automobile 200 preferably includes an ETC transmitter/receiver 205, a navigation device 206 including a television set, and a car radio 207. Here, an electromagnetic coupling module 1 which includes a wireless communication circuit board (modem) incorporating reception circuits (and a transmission circuits as needed) which receive signals for the respective devices (such as an ETC signal, a GPS signal, a television signal, and a radio signal) is attached to the steel plate portion of the car body 201, and the power supply circuit is connected to the steel plate portion (radiation plate) through electromagnetic field coupling. The reception circuits (and the transmission circuits as needed) for the respective devices are electrically connected to the wireless communication circuit board.
Refer to FIG. 42 As shown in FIG. 42, a second preferred embodiment is preferably applied to illuminating lamps 210 which are installed in expressways, and metallic pole portions 211 of the illuminating lamps 210 are used as radiation plates. In electromagnetic coupling modules 1, power supply circuits are electromagnetically connected to the pole portions 211, and each of the electromagnetic coupling modules 1 receives a control signal (such as a light-on signal and a light-off signal) transmitted from a controller 215. The control signal is supplied through wireless communication circuit boards (modems) to illumination control units 212 so that light-on operations or light-off operations are performed. Note that the illumination control units 212 may be incorporated in the corresponding wireless communication circuit boards.
Refer to FIG. 43 As shown in FIG. 43, a third preferred embodiment is applied to an electronic paper 220 including a display screen 221 and a frame portion 222, and the metallic frame portion 222 of the electronic paper 220 is used as a radiation plate. A power supply circuit in an electromagnetic coupling module 1 is electromagnetically connected to the frame portion 222, and receives a control signal and a display image signal transmitted from a display signal transmitter 225. The control signal and the display image signal are supplied through a wireless communication board (modem) to a reception circuit 223 and a display circuit 224. Accordingly, an image is displayed in the display screen 221 or is replaced by a new one. Note that the reception circuit 223 may be incorporated in the wireless communication circuit board.
Refer to FIG. 44 As shown in FIG. 44, in a fourth preferred embodiment, a metallic case portion 231 of a body 230 of a desktop personal computer and a metallic case portion 236 of a laptop personal computer 235 are used as radiation plates. Power supply circuits of electromagnetic coupling modules 1 are electromagnetically connected to the case portions 231 and 236, and are connected through wireless communication circuit boards (for example, modems) to transmission/reception circuits 232 and 237. The electromagnetic coupling module 1 receives a signal supplied from a wireless LAN (W-LAN) 241 and transmits a signal to the W-LAN 241.
Refer to FIG. 45 As shown in FIG. 45, in a fifth preferred embodiment, a metallic case 251 and a band 252 of an atomic clock 250 are used as a radiation plate. A power supply circuit of an electromagnetic coupling module 1 is electromagnetically connected to the case 251 and the band 252 so that a standard time electric wave is supplied thereto. A wireless communication circuit board (for example, a modem) is connected to a time correction circuit 253. Note that the time correction circuit 253 may be incorporated in the wireless communication circuit board.
Refer to FIG. 46 As shown in FIG. 46, in a sixth preferred embodiment, a metallic case portion 261 (or a dielectric coating which is applied to the case when the case portion is nonmetallic) of a cellular phone 260 is used as a radiation plate. A electromagnetic coupling module 1 supports a plurality of frequencies, and a power supply circuit is electromagnetically connected to the case portion 261 and the dielectric coating so as to receive c a digital terrestrial signal, a GPS signal, a WiFi signal, and a calling signal such as a CDMA or a GSM. A wireless communication circuit board (for example, a modem) is connected to reception circuits provided for the respective signals.
Refer to FIG. 47 As shown in FIG. 47, in a seventh preferred embodiment, a metallic case portion 321 of a television set 320 and a metallic case portion 326 of a DVD recorder 325 are used as radiation plates. Power supply circuits of electromagnetic coupling modules 1 are electromagnetically connected to the respective case portions 321 and 326, and wireless communication circuit boards (for example, modems) of the electromagnetic coupling modules 1 are connected to respective transmission/reception circuits 322 and 327. In the seventh preferred embodiment, the wireless communication circuit boards communicate with each other through UWB communication.
Refer to FIG. 48 As shown in FIG. 48, in an eighth preferred embodiment, a metallic case portion 331 of a television set 330 and a metallic case portion 336 of a radio 335 are used as radiation plates. Electromagnetic coupling modules 1 support a plurality of frequencies, and power supply circuits are electromagnetically connected to either the respective case portions 331 and 336 or a dielectric coating so as to receive a terrestrial television signal and a radio signal. Wireless communication circuit boards (for example, modems) are connected to reception circuits 332 and 337 provided for the respective signals.
Refer to FIG. 49 As shown in FIG. 49, in a ninth preferred embodiment, a metallic case portion 341 of a refrigerator 340 is used as a radiation plate. A power supply circuit of an electromagnetic coupling module 1 is electromagnetically connected to a case portion 341 and a wireless communication circuit board (for example, a modem) of the electromagnetic coupling module 1 is connected to a transmission/reception circuit 342. In the ninth preferred embodiment, the wireless communication circuit board is wirelessly communicated with a home controller (not shown) based on the Echonet standard, for example, so as to manage foods stored in a refrigerator 340. If electromagnetic coupling modules 1 are attached to the foods stored in the refrigerator 340, use-by dates are easily managed. Since the refrigerator 340 is normally in a turn-on state, the refrigerator 340 is appropriately used as a home server.
Refer to FIG. 50 As shown in FIG. 50, in a tenth preferred embodiment, free electrons filled in a fluorescent light tube 400 are used as radiation plates. A power supply circuit is electromagnetically connected to the free electrons in the tube by attaching an electromagnetic coupling module 1 to a surface of the fluorescent light tube 400. A wireless communication circuit board (for example, a modem) is connected to the Internet through a transmission/reception circuit 401, a PLC 402, and a router 403. A personal computer 405 communicates with the Internet through the electromagnetic coupling module 1 using a WiFi signal and a UWB signal.
Note that the product including a power supply circuit board according to the present invention is not limited to the foregoing preferred embodiments, and various modifications may be made within the scope of the invention.
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No. 12/042,399; mailed on Aug. 25, 2008.Referenced byCiting PatentFiling datePublication dateApplicantTitleUS8184055 *Oct 5, 2009May 22, 2012Waltop International CorporationElectromagnetic input LCD monitorUS20100238073 *Oct 5, 2009Sep 23, 2010Waltop International CorporationElectromagnetic Input LCD Monitor* Cited by examinerClassifications U.S. Classification343/700.0MS, 343/820, 343/850International ClassificationH01Q1/38Cooperative ClassificationH05K2201/10098, H05K1/165, H05K1/162, H05K1/16, H05K1/0243, H05K1/0239, H01Q11/08, H01Q9/27, H01Q7/00, H01Q1/38, H01Q1/2283, H01Q1/2216, H01Q1/2208, G06K19/0723, G06K19/0701, H01L2224/16225European ClassificationH01Q1/38, G06K19/07T, H01Q1/22C2, H05K1/02C4D, H05K1/02C4A, H01Q9/27, H01Q7/00, H01Q1/22J, H01Q1/22C, H01Q11/08, H05K1/16, G06K19/07ALegal EventsDateCodeEventDescriptionSep 22, 2008ASAssignmentOwner name: MURATA MANUFACTURING CO., LTD., JAPANFree format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:KATO, NOBORU;KIMURA, IKUHEI;REEL/FRAME:021564/0508;SIGNING DATES FROM 20080902 TO 20080916Owner name: MURATA MANUFACTURING CO., LTD., JAPANFree format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:KATO, NOBORU;KIMURA, IKUHEI;SIGNING DATES FROM 20080902 TO 20080916;REEL/FRAME:021564/0508Jun 3, 2015FPAYFee paymentYear of fee payment: 4RotateOriginal ImageGoogle Home - Sitemap - USPTO Bulk Downloads - Privacy Policy - Terms of Service - About Google Patents - Send FeedbackData provided by IFI CLAIMS Patent Services