$\require{mediawiki-texvc}$
  • 검색어에 아래의 연산자를 사용하시면 더 정확한 검색결과를 얻을 수 있습니다.
  • 검색연산자
검색연산자 기능 검색시 예
() 우선순위가 가장 높은 연산자 예1) (나노 (기계 | machine))
공백 두 개의 검색어(식)을 모두 포함하고 있는 문서 검색 예1) (나노 기계)
예2) 나노 장영실
| 두 개의 검색어(식) 중 하나 이상 포함하고 있는 문서 검색 예1) (줄기세포 | 면역)
예2) 줄기세포 | 장영실
! NOT 이후에 있는 검색어가 포함된 문서는 제외 예1) (황금 !백금)
예2) !image
* 검색어의 *란에 0개 이상의 임의의 문자가 포함된 문서 검색 예) semi*
"" 따옴표 내의 구문과 완전히 일치하는 문서만 검색 예) "Transform and Quantization"

특허 상세정보

Doppler detection device with integrator sampling means to inhibit false alarms

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) G08B-013/18   
미국특허분류(USC) 340/258A ; 343/5PD
출원번호 US-0561890 (1975-03-25)
우선권정보 AU-0007032 (1974-03-25)
발명자 / 주소
인용정보 피인용 횟수 : 14  인용 특허 : 0
초록

A Doppler detector device includes means for transmitting signals into a field to be protected, means for generating a unit step signal from the Doppler shift signal, means for integrating the unit step signal, means for activating an alarm when the output of the integrating means reaches a predetermined threshold level, and a false alarm inhibitor including means for sampling the integrator output and for resetting the integrator if the output does not reach the predetermined threshold level within a predetermined time. The false alarm inhibitor prefera...

대표
청구항

A security device comprising a Doppler principle detection device, means for generating an output signal from a Doppler shift signal developed by the detection device, an integrator for integrating the output signal, an alarm adapted to be activated when the output of the integrator reaches a predetermined threshold level, and a false alarm inhibitor including means for sampling the integrator output and for resetting the integrator if the integrator output does not reach said predetermined threshold level within a predetermined time, said inhibitor acti...

이 특허를 인용한 특허 피인용횟수: 14

  1. Cheal James (Tempe AZ) McHenry Vincent J. (Scottsdale AZ). Coupling unit for coaxial cable including means for radiating wave energy. USP1982114358764.
  2. Cole Martin T. (East Bentleigh AUX) Strahan Graeme R. (Upwey AUX). Doppler intrusion detector with dual phase processing. USP1980094225858.
  3. Kani Hiroyuki,JPX ; Asakura Fumio,JPX ; Nakamura Tadashi,JPX ; Yoshida Toru,JPX ; Tsuzuki Takeo,JPX. Entering detecting system for vehicles. USP2001036198385.
  4. Hessling-Von Heimendahl, Andre; Jha, Anil Kumar. Erosion detector for an exterior aircraft lighting device and exterior aircraft lighting device comprising the same. USP20181210151708.
  5. Hwang, Shih-Ming; Hwang, Chien-Jong; Hwang, Liang-Lun. Intelligent microwave detecting system. USP2005066903675.
  6. Kani Hiroyuki,JPX ; Goto Masahiro,JPX ; Hayashi Ikuo,JPX ; Tsuzuki Takeo,JPX. Intrusion detecting apparatus for a vehicle. USP1999015856778.
  7. Cheal James (Tempe AZ). Intrusion detector system. USP1982054328487.
  8. Sansky Michael J. (504 Via Juarez San Clemente CA 92672). Malfunction-detecting status monitoring system. USP1986094611197.
  9. Gillis, Edward J.; Progovac, Dusan V.; Cooper, Stephen R. W.. Method and apparatus for detecting intrusion and non-intrusion events. USP2003106631096.
  10. Brandestini ; Marco. Method and apparatus for determining a change of the flow state of flowable substances from its static state to its flo. USP1978094112740.
  11. Gray ; Kenneth W.. Miniature doppler radar systems and microwave receivers suitable therefor. USP1978124131889.
  12. Wang, Jianqi; Jing, Xijing; Zhang, Yang; Lu, Hao; Li, Yanfeng; Li, Zhao; Jiao, Teng; Yu, Xiao. Multichannel UWB-based radar life detector and positioning method thereof. USP2016099442189.
  13. Meyer Gnther (Uetersen DEX). Security alarm system monitoring difference between sound signal components in two frequency ranges. USP1981124306228.
  14. Murakami, Tadashi; Gotoh, Shigeo. Sensor device for reducing erroneous activation of a light source. USP2015119185779.