[특허]Portable through-the-earth radio

Portable through-the-earth radio 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	H04B-013/02 H04B-005/00
출원번호	US-0318025 (2010-11-16)
등록번호	US-9564977 (2017-02-07)
국제출원번호	PCT/CA2010/001808 (2010-11-16)
§371/§102 date	20130311 (20130311)
국제공개번호	WO2012/006711 (2012-01-19)
발명자 / 주소	Roper, Michael Svilans, Markus Kwasniok, Peter Puzakov, Vladimir
출원인 / 주소	VITAL ALERT COMMUNICATION INC.
대리인 / 주소	Norton Rose Fulbright Canada LLP
인용정보	피인용 횟수 : 0 인용 특허 : 31

초록 ▼

The present invention provides an apparatus for portable through-the-earth radio (PTTER). The PTTER provides bidirectional voice and/or data communication between a surface radio and a portable radio. The PTTER also provides a transmit antenna having a primary loop and one or more secondary loops configured to increase the magnetic field produced by the primary loop. The PTTER also provides a transportable loop antenna that can be wound around a form for transportation. The PTTER also provides a receive antenna optimal for implementing noise cancellation. The PTTER also provides a navigation subsystem for detecting distance and direction to increase the effective range of the PTTER. The PTTER can be implemented in a backpack form factor.

대표청구항 ▼

1. A transmit antenna for through-the-earth radio communication comprising: a tuned primary loop antenna, the primary antenna configured to transmit a magnetic field signal at an operating frequency; andone or more secondary loop antennas looped coaxially with the primary loop antenna, wherein the one or more secondary loop antennas are tuned to a higher frequency than the primary loop antenna; wherein the one or more secondary loop antennas increase the magnetic field produced by the primary loop antenna; and wherein the one or more secondary loop antennas are magnetically coupled to the primary loop antenna providing a mutual coupling inductance. 2. The transmit antenna of claim 1, wherein the higher frequency is approximately twice the operating frequency. 3. The transmit antenna of claim 1, wherein the primary loop antenna is formed of multiple turns and resonated at the operating frequency. 4. The transmit antenna of claim 1, wherein the primary loop comprises a plurality of spirals connected in series. 5. The transmit antenna of claim 1, wherein the operating frequency is in the range of 1 to 30 kHz. 6. The transmit antenna of claim 1, wherein the transmit antenna is mounted in or on a backpack. 7. A through-the-earth portable radio comprising: the transmit antenna of claim 1,a receive antenna; andradio circuitry linked to the transmit antenna and the receive antenna, the radio circuitry operable to: generate a time division duplexed signal transmittable to a surface radio as a time division duplexed magnetic field by the transmit antenna; anddecode the signal when the receive antenna receives a time division duplexed magnetic field from the surface radio. 8. The through-the-earth portable radio of claim 7, wherein the time division duplexed signal is generated by a pulse width modulated amplifier. 9. The through-the-earth portable radio of claim 7, wherein the radio circuitry includes a current controlled feedback loop to prevent distortion in the transmitted time division duplexed signal. 10. The through-the-earth portable radio of claim 7, wherein the receive antenna is a three-axis array antenna. 11. The through-the-earth portable radio of claim 10, wherein the three-axis array antenna comprises three loop antennas, ferrite loaded loop antennas and/or ferrite rods, each wound with multiple turns and aligned orthogonally to the other two antennas. 12. The through-the-earth portable radio of claim 10, wherein noise cancellation is applied to the signal received by the three-axis array antenna. 13. A portable through-the-earth radio comprising: a housing;radio circuitry disposed within the housing;the transmit antenna of claim 1 disposed in or extending from the housing and electrically connected to the radio circuitry;a battery pack disposed within the housing and electrically connected to the radio circuitry;a receive antenna disposed within the housing and electrically connected to the radio circuitry. 14. The portable through-the-earth radio of claim 13, wherein the housing comprises a frame for supporting the radio circuitry, the transmit antenna, the battery pack and the receive antenna. 15. The portable through-the-earth radio of claim 13, wherein the housing comprises one or more straps to provide a backpack wearable by a user. 16. The portable through-the-earth radio of claim 13, wherein the transmit antenna is a loop antenna disposed so that its loop axis is vertical. 17. The portable through-the-earth radio of claim 13, wherein the radio circuitry is disposed within a shielded enclosure. 18. The portable through-the-earth radio of claim 13, wherein the receive antenna comprises a three-axis orthogonal antenna. 19. The transmit antenna of claim 1, characterized in that the primary loop antenna and the one or more secondary loop antennas are aligned on the same axis and spaced apart to be physically separate. 20. The transmit antenna of claim 1, characterized in that the primary loop antenna is formed by multiple turns and is tuned to series resonance at an operating frequency of a transmitter by a series capacitor.

이 특허에 인용된 특허 (31)

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Bunton,John David; Daniels,Graham Ross; Jacka,Colin Eric, Communications system.
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Zvi H. Meiksin ; T. Brad Petrus ; Robert J. Kilgore, Facility-wide communication system and method.
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LeVan, David O., Magnetic antenna apparatus and method for generating a magnetic field.
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DaCosta, Francis; Dayanandan, Sriram, Managing latency and jitter on wireless LANs.
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Stolarczyk Larry G. (Raton NM) Smoker Kurt A. (Las Cruces NM) Boese Gerald J. (Raton NM) Mondt William E. (Albuquerque NM) Hasenack ; Jr. Marvin L. (Raton NM) Zappanti James L. (Trinidad CO) Smith Se, Medium frequency mine communication system.
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Rorden Louis H. (Los Altos CA) Moore Thomas C. (Sunnyvale CA), Method and apparatus employing received independent magnetic field components of a transmitted alternating magnetic fiel.
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Pelegri, Luis M.; Gold, Randy, Method and apparatus for detecting borehole effects due to eccentricity of induction instruments.
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Papadopoulos, Konstantinos, Method and apparatus for establishing low frequency/ultra low frequency and very low frequency communications.
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Hetherington, Hoby P.; Pan, Jullie W., Method and apparatus for generating an effective equivalent of simultaneous transmission to a targeted tissue using a conventional transceiver array.
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Payton Christopher C. ; Strack Kurt-M. ; Tabarovsky Leonty A., Method and apparatus for measuring transient electromagnetic and electrical energy components propagated in an earth f.
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Schmidt, Paul E.; Silverstrim, James Edward; Koleszar, Luke, Method and apparatus for reliable communications in underground and hazardous areas.
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Wang, Tsili; Chemali, Roland E., Method for compensating drill pipe and near-borehole effect on and electronic noise in transient resistivity measurements.
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Burris, Daniel P.; Hosbach, Thomas D.; Oerkfitz, Mark O.; Tripp, Christopher R.; Weiblen, John P., Portable wireless through-the-earth communication system.
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Stolarczyk Larry G. (Raton NM), Radio communication systems for underground mines.
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Levan, David O., Sub-surface communications system and method.
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Gunasekara, Don; Wilson, Tom, System and method for a high available and survivable communication system.
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Melconian, Arsen; Cordell, Daniel Lawrence; Lafreniere, Douglas Kent; Ow, Steven, Systems and methods for alignment with a remote source.
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Hong, Yang-Ki; Bae, Seok, Through-the-earth (TTE) communication systems and methods.
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Meiksin,Zvi H.; Petrus,T. Brad; Kilgore,Robert J., Through-the-earth communication system.
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Reagor,David; Vasquez Dominguez,Jose, Through-the-earth radio.
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MacLeod Norman C. (Sunnyvale CA), Underwater communications system.
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Hirotsu Tohru (Matsusaka JPX) Fujii Kazuhiko (Matsusaka JPX), Wide-band antenna on vehicle rear window glass.
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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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Portable through-the-earth radio 원문보기

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저장형식	Text(ASCII format) Excel format PIAS분석(.xls)
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안내	총 건의 자료가 검색되었습니다. 다운받으실 자료의 인덱스를 입력하세요. (1-10,000) 검색결과의 순서대로 최대 10,000건 까지 다운로드가 가능합니다. 데이타가 많을 경우 속도가 느려질 수 있습니다.(최대 2~3분 소요) 다운로드 파일은 UTF-8 형태로 저장됩니다. 파일의 내용이 제대로 보이지 않을실 때는 웹브라우저 상단의 보기 -> 인코딩 -> 자동선택 여부를 확인하십시오. ~ Text(ASCII format) Excel format

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Portable through-the-earth radio 원문보기

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