IPC분류정보
| 국가/구분 |
United States(US) Patent
등록
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| 국제특허분류(IPC7판) |
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| 출원번호 |
US-0128052
(2002-04-22)
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발명자
/ 주소 |
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| 출원인 / 주소 |
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| 대리인 / 주소 |
Watts, Hoffman, Fisher & Heinke Co., L.P.A.
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| 인용정보 |
피인용 횟수 :
38 인용 특허 :
19 |
초록
▼
A self contained radio frequency identification integrated circuit (RFIDIC) switch. The RFIDIC switch includes a switch housing, a radio frequency identification integrated circuit enclosed in the switch housing and an actuator extending into the switch housing. The RFIDIC is powered by a radio freq
A self contained radio frequency identification integrated circuit (RFIDIC) switch. The RFIDIC switch includes a switch housing, a radio frequency identification integrated circuit enclosed in the switch housing and an actuator extending into the switch housing. The RFIDIC is powered by a radio frequency carrier signal. The actuator is movable to a first position and to a second position. The radio frequency identification integrated circuit transmits a signal when said actuator is in one of the positions. Movement of the actuator to the other position alters said signal.
대표청구항
▼
A self contained radio frequency identification integrated circuit (RFIDIC) switch. The RFIDIC switch includes a switch housing, a radio frequency identification integrated circuit enclosed in the switch housing and an actuator extending into the switch housing. The RFIDIC is powered by a radio freq
A self contained radio frequency identification integrated circuit (RFIDIC) switch. The RFIDIC switch includes a switch housing, a radio frequency identification integrated circuit enclosed in the switch housing and an actuator extending into the switch housing. The RFIDIC is powered by a radio frequency carrier signal. The actuator is movable to a first position and to a second position. The radio frequency identification integrated circuit transmits a signal when said actuator is in one of the positions. Movement of the actuator to the other position alters said signal. d herein by reference in its entirety and for all purposes. This invention is also related to U.S. patent application Ser. No. 09/886,403, filed on the same day as this patent application, naming P. Mi et al. as inventors, and entitled "EVENT MONITORING, DETECTION AND NOTIFICATION SYSTEM." That application is incorporated herein by reference in its entirety and for all purposes. y unit. 13. The drive axle housing as defined in claim 1, wherein said capacitive oil level sensor comprising: an L-shaped housing having a first leg adapted at least partially immersed in said oil reservoir and a second leg disposed substantially perpendicular from said first leg and extending outside said drive axle housing substantially horizontally; an L-shaped flat printed circuit board having a first leg disposed in said first leg of said sensor housing and a second leg disposed in said second leg of said sensor housing; at least one first electrode plate fixed inside said first leg of said sensor housing; at least one second electrode plate attached to said first leg of said printed circuit board opposite to said first electrode plate, wherein said first and second electrode plates forming a capacitor, a capacitance of said capacitor is a function of said level of said oil in which said capacitor is immersed; a threaded mounting surface formed at said second leg of said sensor housing provided for threading said sensor into a threaded fill plughole in said drive axle housing; a wrench engaging surface provided on said second leg and adapted for mounting said sensor to said drive axle housing; a thermistor for measuring an oil temperature in said oil reservoir, said thermistor mounted to said printed circuit board; and an electronic sensor circuitry electrically coupled to said oil level detecting capacitor and said thermistor, and adapted to generate an electric signal proportional to said oil level in said drive axle housing and an electric signal proportional to said oil temperature in said oil reservoir, wherein said electronic sensor circuitry is supported on said second leg of said printed circuit board. 14. A capacitive oil level sensor mounted to an drive axle housing of a motor vehicle, said drive axle housing having an oil reservoir containing a certain amount of lubricating oil, said capacitive oil level sensor provided to measure an oil level in said reservoir, said sensor comprising: an L-shaped housing having a first leg adapted partially immersed in said oil reservoir and a second leg disposed substantially perpendicular from said first leg and extending outside said drive axle housing substantially horizontally, wherein said first leg houses an oil level detecting capacitor is at least partially immersed in said oil reservoir to detect said oil level. 15. The capacitive oil level sensor as defined in claim 14, further comprising: a threaded mounting surface provided at said second leg and suitable for threading said sensor into a threaded opening in said drive axle housing, and a wrench engaging surface secured to said second leg and adapted for mounting said sensor to said drive axle housing. 16. The capacitive oil level sensor as defined in claim 15, wherein said threaded opening in said drive axle housing is a fill plughole. 17. The capacitive oil level sensor as defined in claim 14, wherein said oil level detecting capacitor includes at least a pair of flat electrode plates. 18. The capacitive oil level sensor as defined in claim 14, wherein said oil level detecting capacitor includes at least a pair of tubular electrodes. 19. The capacitive oil level sensor as defined in claim 14, further comprising an oil temperature sensor disposed in said sensor housing. 20. The capacitive oil level sensor as defined in claim 19, wherein said oil temperature sensor includes a thermistor. 21. The capacitive oil level sensor as defined in claim 19, wherein said capacitive oil level sensor further comprising an electronic sensor circuitry electrically coupled to said oil level detecting capacitor and said oil temperature sensor, and is adapted to generate an electric signal proportional to said oil level in said drive axle housing and an electric signal proportional to said oil temperature in said oil reservoir. 22. The capacitive oil level sensor as defined in claim 21, wherein said electroni c sensor circuitry includes an electromagnetic wave transmitter suitable for transmitting said electrical signal to a remote oil level display unit. 23. The capacitive oil level sensor as defined in claim 14, further comprising an electronic sensor circuitry electrically coupled to said oil level detecting capacitor and adapted to generate an electric signal proportional to said level of said oil in said drive axle housing. 24. The capacitive oil level sensor as defined in claim 23, wherein said electronic sensor circuitry includes an electromagnetic wave transmitter suitable for transmitting said electrical signal to a remote oil level display unit. 25. A capacitive oil level and temperature sensor mounted to a drive axle housing of a motor vehicle, said drive axle housing having an oil reservoir containing a certain amount of lubricating oil, said capacitive oil level sensor provided to measure an oil level in said reservoir, said sensor comprising: an L-shaped housing having a first leg at least partially immersed in said oil reservoir and a second leg disposed substantially perpendicular from said first leg and extending outside said drive axle housing substantially horizontally; an L-shaped flat printed circuit board having a first leg disposed in said first leg of said sensor housing and a second leg disposed in said second leg of said sensor housing; at least one first electrode plate fixed inside said first leg of said sensor housing; at least one second electrode plate attached to said first leg of said printed circuit board opposite to said first electrode plate, wherein said first and second electrode plates forming a capacitor, a capacitance of said capacitor is a function of said level of said oil in which said capacitor is immersed; a threaded mounting surface provided at said second leg of said sensor housing and suitable for threading said sensor into a threaded fill plughole in said drive axle housing; a wrench engaging surface secured to said second leg of said sensor housing and adapted for mounting said sensor to said drive axle housing; a thermistor for measuring an oil temperature in said oil reservoir, said thermistor mounted to said printed circuit board; and an electronic sensor circuitry electrically coupled to said oil level detecting capacitor and said thermistor, and adapted to generate an electric signal proportional to said oil level in said drive axle housing and an electric signal proportional to said oil temperature in said oil reservoir, wherein said electronic sensor circuitry is supported on said second leg of said printed circuit board. 26. A drive axle housing of a motor vehicle, said axle housing comprising: an enlarged central portion housing a differential assembly, said central portion forming an oil reservoir containing a certain amount of lubricating oil; a pair of opposite axle tubes extending from said central portion; and a capacitive oil level sensor mounted to said central portion of said drive axle housing and provided for measuring an oil level in said oil reservoir, wherein said capacitive oil level sensor includes a housing having a first leg at least partially immersed in said oil reservoir and a second leg extending from said first leg at an angle thereto, said first leg houses an oil level detecting capacitor at least partially is immersed in said oil reservoir to detect said oil level. 27. The drive axle housing as defined in claim 26, wherein said oil level detecting capacitor includes at least a pair of flat electrode plates. 28. The drive axle housing as defined in claim 26, wherein said oil level detecting capacitor includes at least a pair of tubular electrodes. 29. The drive axle housing as defined in claim 26, wherein said capacitive oil level sensor further comprising an oil temperature sensor for measuring an oil temperature in said oil reservoir, said oil temperature sensor disposed in said sensor housing. 30. The drive axle housing as defin ed in claim 26, wherein said capacitive oil level sensor further comprising an electronic sensor circuitry electrically coupled to said oil level detecting capacitor and adapted to generate an electric signal proportional to said level of said oil in said drive axle housing. ss communication means and outputting a coincidence signal when both the patterns coincide with each other. 7. A recording medium in which a communication unit position detecting program to be executed by a computer is recorded, wherein the program comprises: a process for generating a specified timing pattern by a timing pattern generating means, a process for controlling an informing device in accordance with the generated timing pattern, a process for transmitting the generated timing pattern by a wireless communication means, and a process for receiving the transmitted timing pattern by the wireless communication means and controlling the informing device in accordance with a timing pattern analyzed by a timing pattern analyzing means. input voltage values is asynchronously derived using a chain of buffers, the thermometer code being translated using a binary code into a ramp voltage by a D/A converter and frozen when the ramp voltage equals the amplitude of a selected analog voltage being digitized.
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