WO2005002081A1 - データ通信装置 - Google Patents
データ通信装置 Download PDFInfo
- Publication number
- WO2005002081A1 WO2005002081A1 PCT/JP2004/009021 JP2004009021W WO2005002081A1 WO 2005002081 A1 WO2005002081 A1 WO 2005002081A1 JP 2004009021 W JP2004009021 W JP 2004009021W WO 2005002081 A1 WO2005002081 A1 WO 2005002081A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- loop coil
- data communication
- coil antenna
- housing
- communication device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/28—Combinations of substantially independent non-interacting antenna units or systems
-
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/2208—Supports; Mounting means by structural association with other equipment or articles associated with components used in interrogation type services, i.e. in systems for information exchange between an interrogator/reader and a tag/transponder, e.g. in Radio Frequency Identification [RFID] systems
- H01Q1/2216—Supports; Mounting means by structural association with other equipment or articles associated with components used in interrogation type services, i.e. in systems for information exchange between an interrogator/reader and a tag/transponder, e.g. in Radio Frequency Identification [RFID] systems used in interrogator/reader equipment
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/2208—Supports; Mounting means by structural association with other equipment or articles associated with components used in interrogation type services, i.e. in systems for information exchange between an interrogator/reader and a tag/transponder, e.g. in Radio Frequency Identification [RFID] systems
- H01Q1/2225—Supports; Mounting means by structural association with other equipment or articles associated with components used in interrogation type services, i.e. in systems for information exchange between an interrogator/reader and a tag/transponder, e.g. in Radio Frequency Identification [RFID] systems used in active tags, i.e. provided with its own power source or in passive tags, i.e. deriving power from RF signal
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
- H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
- H01Q1/242—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use
- H01Q1/243—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use with built-in antennas
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q7/00—Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
- H04B5/40—Near-field transmission systems, e.g. inductive or capacitive transmission systems characterised by components specially adapted for near-field transmission
- H04B5/48—Transceivers
Definitions
- the present invention relates to a data communication apparatus that performs noncontact data communication using electromagnetic induction.
- the noncontact IC card includes an IC (Integrated Circuit) chip in which an electronic circuit for performing various processes for writing and reading data is integrated in the card, a loop coil antenna in which a conducting wire is planarly wound, and To have A noncontact IC card generates an alternating current magnetic field of, for example, 13.56 MHz generated on a reader / writer side loop coil antenna that writes or reads data to or from the noncontact IC card based on the principle of electromagnetic induction.
- the alternating voltage excited in the loop coil antenna on the noncontact IC card side as a power supply for operating the IC chip, and changing the impedance of the load, the noncontact data with the reader / writer can be obtained. Communicate.
- the contact type IC card is also supplied with necessary power on the reader / writer side, data write and read operations can be simplified simply by holding the reader / writer over the power source. And it can be done fast.
- the non-contact IC power function described above is mounted on a portable device such as a mobile phone, for example. It has been considered to make the portable device itself a noncontact short distance wireless transmission device capable of receiving the above-mentioned service without having the ability to carry such a noncontact IC card.
- the non-contact IC card is mounted on a housing 100 having a thickness such as a portable telephone schematically shown in FIG.
- the sensitivity is uneven on the one main surface side of the case 100 in which the loop coil antenna 101 is disposed, so that there is a problem that the usability is deteriorated. That is, when the planar loop coil antenna 101 is mounted in the inside of the casing 100 having such a thickness, the sensitivity of the loop coil antenna 101 changes depending on the direction, and the area with sensitivity becomes narrow. Will occur.
- the planar loop coil antenna 101 in order to equalize the sensitivity of the loop coil antenna 101 on both sides of the housing 100, the planar loop coil antenna 101 must be disposed in the middle of the housing 100.
- disposing the loop coil antenna 101 in the center in a limited space in the housing 100 is a major limitation in mounting. I will.
- the sensitivity area which can communicate with the reader / writer is also narrowed.
- An object of the present invention is to provide a data communication apparatus capable of solving the problems of the above-described conventional techniques.
- Another object of the present invention is to provide a non-contact data communication apparatus which makes the sensitivity of the loop coil antenna uniform on both main surfaces of the housing regardless of the thickness of the housing and enables the expansion of the sensitivity region. It is.
- a data communication apparatus is connected to a housing, a loop coil antenna arranged so that at least a part of a conducting wire circulates along a side surface of the housing, and the loop coil antenna. And a semiconductor integrated circuit that performs non-contact data communication using electromagnetic induction with an external communication device via an antenna.
- the loop coil antenna is disposed such that the conducting wire rotates along the side surface of the housing, the loop coil antenna is not The sensitivity of the antenna can be equalized in the thickness direction of the housing, and the communicable sensitivity region of the loop coil antenna can be expanded.
- FIG. 1 is a perspective view schematically showing a configuration of a mobile phone to which the present invention is applied.
- FIG. 2 is a block diagram showing the configuration of a semiconductor integrated circuit incorporated in the above-mentioned mobile phone.
- FIG. 3 is a perspective view showing a configuration of a loop coil antenna disposed in the mobile phone.
- FIG. 4 is a plan view showing the configuration of a flexible printed circuit board to be the loop coil antenna.
- FIG. 5 is a perspective view showing a state in which a loop coil antenna is configured by the flexible printed circuit board.
- FIG. 6 is a perspective view showing a modification of the loop coil antenna arranged in the above-mentioned mobile phone.
- FIG. 7 is a perspective view showing the configuration of a conventional loop coil antenna.
- a data communication apparatus to which the present invention is applied is, for example, as shown in FIG. 1, a portable telephone 1 having a noncontact IC card function and a reader / writer function in addition to a conventional telephone function.
- the mobile phone 1 has a structure in which a display unit 3 is attached to a main body unit 2 so as to be openable and closable.
- the mobile telephone 1 is electrically connected to a semiconductor integrated circuit (IC) 4 having a noncontact IC card function and a reader / writer function, and the semiconductor integrated circuit 4.
- IC semiconductor integrated circuit
- a loop coil antenna 5 on the noncontact IC card side and a loop coil antenna 6 on the reader / writer side are incorporated.
- the loop coiler on the noncontact IC card side The antenna 5 is disposed in the casing on the side of the main body 2, and the loop coil antenna 6 on the side of the reader / writer is disposed in the casing on the side of the display unit 3.
- the semiconductor integrated circuit 4 includes a noncontact IC card circuit 7 in which data is written and read by an external reader / writer, a reader / writer transmission circuit 8 in which data is written to an external noncontact IC card, and an external And a reader / writer receiving circuit 9 for reading data from the noncontact IC card. Further, the semiconductor integrated circuit 4 is electrically connected to a mobile phone function unit 20 for realizing the call or communication function of the mobile phone 1.
- the noncontact IC card circuit 7 When the noncontact IC card circuit 7 receives an electromagnetic wave as an interrogation signal sent out via an external reader / writer side loop coil antenna via the loop coil antenna 5, it rectifies the carrier wave of the electromagnetic wave, Is converted to a DC power supply to drive an internal circuit. The noncontact IC card circuit 7 performs amplitude modulation while changing the load with the external reader / writer loop coil antenna according to the interrogation signal, and the response signal is loop coiled. Transmit to an external reader / writer via the antenna 5.
- the reader / writer transmission circuit 8 modulates the transmission carrier according to the data to be transmitted, and transmits the interrogation signal to the external contactless IC card via the loop coil antenna 6.
- the reader / writer receiving circuit 9 receives a response signal transmitted from an external noncontact IC card via the loop coil antenna 6 and demodulates the signal to obtain received data.
- the loop coil antenna 5 on the noncontact IC card side is disposed so that the lead wire 5a goes around the entire inner side surface of the housing 2a on the main body 2 side. It is done.
- the sensitivity of the loop coil antenna 5 can be equalized in the thickness direction of the housing 2a.
- the loop coil antenna 5 has a three-dimensional shape in which the conducting wire 5a is spirally wound along the inner side surface of the housing 2a.
- the opening area of the loop coil antenna 5 can be secured large regardless of the number of turns of the conducting wire 5a, and the sensitivity region capable of communicating with the reader / writer as compared with the conventional loop coil antenna 101 shown in FIG.
- the loop coil antenna 5 having this three-dimensional shape has a flexible print shown in FIG. It can be easily manufactured using the substrate 10.
- this flexible printed circuit board 10 is made of a flexible insulating substrate or film having flexibility, such as polyimide, and the conducting wire 5 a is formed on the main surface of the flexible printed circuit board 10 in the longitudinal direction of the flexible printed circuit board 10.
- a plurality of linear copper foil patterns arranged in the direction orthogonal to the direction are formed.
- the flexible printed circuit board 10 is formed with a plurality of folds 10a corresponding to the inner side surface of the housing 2a described above.
- the position where the fold 10a is formed is arbitrary.
- the flexible printed circuit board 10 is bent in the same direction along the fold line 10a, and by joining both end portions in the longitudinal direction, a cylindrical flexible printed circuit board 10 is obtained.
- a cylindrical flexible printed circuit board 10 is obtained.
- one loop coil in which the conducting wire 5a is spirally wound in the short direction of the flexible printed circuit 10 is formed. Both ends of the loop coil are electrically connected to the semiconductor integrated circuit 4 mounted on the flexible printed circuit board 10. Further, both ends of the loop coil can be electrically connected to the substrate on which the semiconductor integrated circuit 4 is mounted by wires or the like.
- the loop coil antenna 5 having a three-dimensional shape can be easily manufactured, and such a loop coil antenna 5 can be easily arranged along the side surface of the above-described housing 2a.
- the loop coil antenna 5 is bonded and fixed to the side surface of the housing 2a using an adhesive. Alternatively, it is fixed by inserting into the insertion part provided on the side of the case.
- any method can be used as a method of fixing the loop coil antenna 5, any method can be used.
- the above-described loop coil antenna 5 is not limited to the configuration in which the conducting wire 5a wraps around the entire side surface of the housing 2a.
- the loop coil antenna 5 described above may be directly embedded in the side surface of the casing 2a made of resin, or the conductor 5 may be pattern-plated on the side surface of the casing 2a.
- the conductor 5a may be disposed in the groove portion formed on the side surface of the housing 2a or the case 2a.
- the loop coil antenna 5 on the noncontact IC card side is disposed such that the conductive wire 5 a circulates along the side surface of the housing 2 a on the main body 2 side.
- the sensitivity of the loop coil antenna 5 can be equalized in the thickness direction of the housing 2a, and the sensitivity region that can communicate with an external reader / writer can be expanded. Therefore, in this mobile phone 1, substantially uniform sensitivity of the loop coil antenna 5 can be obtained on both main surfaces of the main body 2, and the communicable sensitivity region is also expanded. Can be improved.
- the lead wire has a three-dimensional shape spirally wound It is also possible to arrange so that a lead may turn along the side of the case of the part 3 side.
- the loop coil antenna 5 on the noncontact IC card side may be provided in the housing of the display unit 3 and the loop coil antenna 6 on the reader / writer side may be provided in the housing 2 a of the main body 2.
- both of the loop coil antennas 5 and 6 may be provided in the housing of the main body 2 or the housing of the display 3.
- the data communication apparatus to which the present invention is applied is not limited to the above-mentioned portable telephone 1 but is a device for noncontact short distance wireless transmission equipped with the noncontact IC card function and Z or reader / writer function described above. It is widely applicable to
- substantially uniform sensitivity of the loop coil antenna can be obtained on both main surfaces of the thick casing, and the communicable sensitivity region is also expanded. Therefore, it is possible to further improve the usability.
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Signal Processing (AREA)
- Near-Field Transmission Systems (AREA)
- Support Of Aerials (AREA)
- Details Of Aerials (AREA)
Abstract
Description
Claims
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP04746490A EP1641140B1 (en) | 2003-06-30 | 2004-06-25 | Data communication device |
| KR1020057025201A KR101150674B1 (ko) | 2003-06-30 | 2004-06-25 | 데이터 통신 장치 |
| HK06110618.5A HK1090194B (en) | 2003-06-30 | 2004-06-25 | Data communication device |
| DE602004020767T DE602004020767D1 (de) | 2003-06-30 | 2004-06-25 | Datenkommunikationseinrichtung |
| US10/562,928 US7315290B2 (en) | 2003-06-30 | 2004-06-25 | Data communication apparatus |
| CN2004800184508A CN1816973B (zh) | 2003-06-30 | 2004-06-25 | 数据通信设备 |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003188462A JP4539038B2 (ja) | 2003-06-30 | 2003-06-30 | データ通信装置 |
| JP2003-188462 | 2003-06-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2005002081A1 true WO2005002081A1 (ja) | 2005-01-06 |
Family
ID=33549751
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2004/009021 Ceased WO2005002081A1 (ja) | 2003-06-30 | 2004-06-25 | データ通信装置 |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US7315290B2 (ja) |
| EP (1) | EP1641140B1 (ja) |
| JP (1) | JP4539038B2 (ja) |
| KR (1) | KR101150674B1 (ja) |
| CN (2) | CN1816973B (ja) |
| DE (1) | DE602004020767D1 (ja) |
| MY (1) | MY140752A (ja) |
| TW (1) | TWI272744B (ja) |
| WO (1) | WO2005002081A1 (ja) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010026852A (ja) * | 2008-07-22 | 2010-02-04 | Nippon Telegr & Teleph Corp <Ntt> | 読み書き装置および携帯機器 |
| EP2190060A2 (en) * | 2004-08-13 | 2010-05-26 | Fujitsu Limited | Radio frequency identification (RFID) tag and manufacturing method thereof |
| KR101254528B1 (ko) * | 2005-07-04 | 2013-04-19 | 소니 주식회사 | 통신 보드 |
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| CN105406197A (zh) * | 2015-12-14 | 2016-03-16 | 福建新大陆支付技术有限公司 | 非接触天线及其安装方法 |
| KR102075779B1 (ko) * | 2017-08-18 | 2020-02-11 | 주식회사 아모텍 | 링형 안테나 및 이를 구비한 이어 모듈 |
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| KR101254528B1 (ko) * | 2005-07-04 | 2013-04-19 | 소니 주식회사 | 통신 보드 |
| JP2010026852A (ja) * | 2008-07-22 | 2010-02-04 | Nippon Telegr & Teleph Corp <Ntt> | 読み書き装置および携帯機器 |
Also Published As
| Publication number | Publication date |
|---|---|
| DE602004020767D1 (de) | 2009-06-04 |
| US7315290B2 (en) | 2008-01-01 |
| HK1090194A1 (en) | 2006-12-15 |
| MY140752A (en) | 2010-01-15 |
| KR20060029635A (ko) | 2006-04-06 |
| TWI272744B (en) | 2007-02-01 |
| JP4539038B2 (ja) | 2010-09-08 |
| CN1816973B (zh) | 2011-04-06 |
| CN1816973A (zh) | 2006-08-09 |
| CN102158572A (zh) | 2011-08-17 |
| EP1641140A1 (en) | 2006-03-29 |
| CN102158572B (zh) | 2013-01-02 |
| JP2005026865A (ja) | 2005-01-27 |
| EP1641140B1 (en) | 2009-04-22 |
| KR101150674B1 (ko) | 2012-05-25 |
| TW200507350A (en) | 2005-02-16 |
| US20060192723A1 (en) | 2006-08-31 |
| EP1641140A4 (en) | 2007-08-01 |
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