[특허]Rangefinder using expanded time delay

[미국특허] Rangefinder using expanded time delay 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	G01S-013/78
출원번호	US-0064390 (1979-08-08)
발명자 / 주소	Henriques Lance (New York NY)
출원인 / 주소	Angleman John D. (Brookside NJ 04)
인용정보	피인용 횟수 : 42 인용 특허 : 3

초록 ▼

The system is comprised of a plurality of hand held units carried by golfers, a plurality of flagstick units located at a golf course and a master Clubhouse unit. Each hand held unit includes a power source, a transceiver, a distance determining circuit, a keyboard with display, an audio generator and a microprocessor which controls the mode of the hand held unit. Each flagstick unit is comprised of a power source, a transceiver and a controlling microprocessor. The microprocessor includes a plurality of subprograms which control the function of the hand held unit or the flagstick unit. To determine the distance between a hand held unit and a flagstick unit, a button on the keyboard is pressed to select a particular flagstick unit. The microprocessor is activated to activate the audio generator indicating the button was properly pressed and, simultaneously, the distance determining circuit and transceiver are activated. The distance determining circuit is actually a timing circuit which measures the amount of time required for the signal from the transceiver to reach the selected flagstick unit and be retransmitted by the flagstick unit back to the particular hand held unit. The distance determining circuit is actually a capacitor which is linearly charged during transmission time and discharged at a slower rate to determine the amount of charge which is directly proportional to the distance between the hand held unit and the flatstick unit. The hand held units are also provided with a magnetic charging circuit so that the unit can be charged without the use of connections and so that the unit can be embodied in a sealed apparatus.

대표청구항 ▼

A system for determining the distance between a first point and a second point comprising: (a) first transceiver means located at the first point for transmitting a first signal burst on a given frequency and for receiving signals on the given frequency; (b) second transceiver means located at the second point for receiving the first signal burst on the given frequency and for retransmitting a second signal burst on the given frequency in response to the first signal burst; and (c) timing means for measuring the period of time between the transmission of the first signal burst by the first transceiver means and the receipt of the second signal burst by the second transceiver means, whereby the period of time is directly proportional to the distance between the first point and the second point, said timing means being comprised of an integrator including a capacitor, a means for linearly charging the capacitor at a charge rate during the period of time, a means for linearly discharging at a slower rate than said charge rate the capacitor after the period of time, a threshold detector for detecting when the state of charge of the capacitor reaches a predetermined value; (d) and a microprocessor for measuring an amount of time that the capacitor is charged to a value of at least said predetermined value, the amount of time corresponding to said distance between the first point and the second point.

이 특허에 인용된 특허 (3) 인용/피인용 타임라인 분석

Gorwara Ashok K. (San Jose CA), Cooperative signal processing beacon transponder.
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Denne ; Phillip Raymond Michael ; Davies ; David Evan Naunton ; McEwe n ; Colin Dougal, Passive transponder apparatus for use in an interrogator-responder system.
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Lassiter ; James W., Trans-horizon navigation system.
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이 특허를 인용한 특허 (42) 인용/피인용 타임라인 분석

Vock Curtis A. ; Darcy Dennis, Accelerometer-based golf distancing apparatus.
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Tell Daniel Francis ; Scanlon John M. ; Singer Marty H. ; Hose David A. ; Fitch James A., Apparatus and method for billing in a wireless communication system.
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Tell Daniel Francis ; Scanlon John M. ; Singer Marty H. ; Hose David A. ; Fitch James A., Apparatus and method for billing in a wireless communication system.
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Nysen, Paul A.; Skeie, Halvor, Backscatter transponder interrogation device.
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Pyner, Derek J.; Fretenburg, Russell A.; Kazemir, Steven S. J., Distancing and positioning systems and methods.
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Nysen, Paul A., Dual mode transmitter-receiver and decoder for RF transponder tags.
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Nysen, Paul A., Dual mode transmitter-receiver and decoder for RF transponder tags.
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Nysen Paul A., Dual mode transmitter/receiver and decoder for RF transponder tags.
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Nysen, Paul A., Dual mode transmitter/receiver and decoder for RF transponder units.
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McEwan,Thomas Edward, Error corrector for radar timing systems.
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Nysen Paul A., Frequency hopping spread spectrum passive acoustic wave identification device.
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Nysen Paul A., Frequency mixing passive transponder.
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McEwan Charles (Rancho Mirage CA) Maietta Michael (San Jose CA) Pompeani Robert (San Jose CA) Marcoccia Roberto (San Jose CA), Golf autoranging system.
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Rossetti Anthony J. (San Jose CA) Nysen Paul A. (Sunnyvale CA), Interrogator/receiver system for use with a remote transponder.
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Osborn Brian S., Laser putter system.
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Hocknell, Alan; Cackett, Matthew T.; Stevens, Daniel M.; Vincent, Brandon T., Laser range finder for use on a golf course.
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Hocknell, Alan; Cackett, Matthew T.; Stevens, Daniel M.; Vincent, Brandon T., Laser range finder for use on a golf course.
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Lander David R. (17 Stirling Rd. Drymen ; by Glasgow G63 OBW GB6), Means for assisting in locating an object.
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Colquhoun Alexander (Heilbronn-Frankenbach DEX) Berchtold Klaus (Heilbronn DEX), Measuring system.
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Bianco Joseph A. ; Vock Curtis A. ; Bianco John V., Memory for GPS-based golf distancing system.
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Hawkes Kelly Davidson ; Koehler Jeffrey Lynn, Method and apparatus for mobile emitter location.
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Reiche Martin,DEX, Method and electronic circuit for the processing of an analog signal.
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Cupp Ted W. (R.D. 6 ; Box 376 Rome NY 13440), Method of monitoring golf carts on a golf course.
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Fattouche Michel,CAX ; Klukas Richard,CAX ; Oler Kevin,CAX, Methods and apparatus to position a mobile receiver using downlink signals part IV.
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Fattouche Michel,CAX ; Klukas Richard,CAX, Methods and apparatus to position a mobile receiver using downlink signals, part I.
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Fattouche Michel,CAX, Methods and apparatus to position a mobile receiver using downlink signals, part II.
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Santos James P. (223 Rockingstone Ave. Larchmont NY 10538), Monitoring, ranging and locating devices.
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Fattouche Michel,CAX ; Borsodi Andrew,CAX ; Klukas Richard,CAX, Network-based wireless location system to position AMPs (FDMA) cellular telephones, part I.
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Bianco Joseph A. (112 Rising Trail Dr. Middletown CT 06457) Vock Curtis A. (28 Federal St. ; 30-12 Salem MA 01970) Bianco John V. (24 Calvin Rd. Jamaica Plain MA 02130), Player positioning and distance finding system.
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McEwan, Thomas Edward, Rate locked loop radar timing system.
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Dudley Douglas P., Satellite enhanced golf information system.
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Wang James J. M., Spread spectrum position determination, ranging and communication system.
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Nysen Paul A., Surface acoustic wave transponder configuration.
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Nysen Paul A. ; Skeie Halvor, Surface acoustic wave transponder configuration.
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Stilp Louis A. (Broomall PA) Knight Curtis A. (Washington DC) Webber John C. (Herndon VA), System for locating a source of bursty transmissions cross reference to related applications.
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Pyner Derek J.,CAX ; Fretenburg Russell A.,CAX ; Kazemir Steven S. J.,CAX, Systems and methods for determining the distance between two locations.
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Hawkes Kelly D. ; Koehler Jeffrey L., Time difference of arrival measurement system.
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Kitani, Mitsuhiro, Transmitter, receiver, non-contact power transmission control method, and computer-readable recording medium.
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Tanaka Haruto (Yokohama JPX), Ultra-sonic distance sensor system and method with correction feature for sensor value.
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Tan, Desney; Saponas, T. Scott; Morris, Dan; Turner, Jim, Wearable electromyography-based controllers for human-computer interface.
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Tan, Desney; Saponas, T. Scott; Morris, Dan; Turner, Jim, Wearable electromyography-based human-computer interface.
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Fattouche Michel T.,CAX ; Klukas Richard W.,CAX ; Borsodi Andrew L.,CAX ; Astridge Mark,CAX ; Lachapelle Gerard J.,CAX ; Zaghloul Hatim,CAX, Wireless location system.
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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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[미국특허] Rangefinder using expanded time delay 원문보기