ScienceON 검색
ScienceON '특허' 검색
더보기| No | 제목 / 내용 |
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| 1 |
Developing cartridge and mounting method of its side cover / CANON KABUSHIKI KAISHA, JP A developing cartridge (4) detachably mountable to an electrophotographic image forming apparatus (100), the cartridge includes a frame (300); a developing roller (305) for developing an electrostatic latent image formed on an electrophotographic photosensitive drum (1); an one-end frame groove (300cc) provided at one longitudinal end of the frame (300); an one-end frame projection (300dd) provided at the one longitudinal end of the frame (300); one-end bearing member (340B) for rotatably supporting one-end shaft (305c) provided at one longitudinal end of the developing roller (305) extended in a longitudinal direction of the frame (300); an one-end bearing cylinder (340aa), provided on the one-end bearing member (340B), engaged with an inner surface of the one-end frame groove (300cc); an elongated bearing opening (340bb) which is provided on the one-end bearing member (340B) and through which the frame one end projection (300dd) is penetrated; a first projection of metal (340dd) provided on an outer surface of the one-end bearing member (340B) opposite from an inner side surface on which the one-end bearing cylinder (340aa) is provided; a second projection of metal (340cc) which is provided on the one-end bearing member (340B) and which supports a gear (307) for receiving a driving force from the apparatus (100) when the cartridge (4) is mounted to the apparatus (100); a first screw (335) for securing the one-end bearing member (340B) to one end of the frame (300); an one-end side cover (310) provided at one longitudinal end of the frame (300) and covering the one-end bearing member (340B); a first opening (310dd) provided in the one-end side cover (310) and engageable with the first projection (340dd); a second opening (310cc) provided in the one-end side cover (310) and engageable with the second projection (340cc); an one-end side cover projection (310aa) provided inside the one-end side cover (310) and engageable with an inner surface of the one-end bearing cylinder (340aa) engaged with the one-end frame groove (300cc); a second screw (337) for securing the one-end side cover (310) to one end of the frame (300); and a third screw (338) for securing the one-end side cover (310) to the first projection (340dd) provided on the one-end bearing member (340B). |
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ACOUSTIC COMMUNICATION SYSTEM, ACOUSTIC RECEIVER, ACOUSTIC TRANSMITTER, AND ACOUSTIC TRANSMISSION METHOD / JAPAN AGENCY FOR MARINE-EARTH SCIENCE & TECHNOLOGY PROBLEM TO BE SOLVED: To achieve acoustic communication which is high in reliability.SOLUTION: The acoustic communication system comprises: an acoustic transmitter for outputting an output acoustic signal (Sout) having a reference signal (RS) having a predetermined bit string and a modulated signal (MS) obtained by modulating a signal to be transmitted; and an acoustic receiver (RX1) for receiving an input acoustic signal (Sind). The acoustic receiver comprises: a reference signal generation part (302) for generating a reference signal (RS); a first correlation arithmetic unit (301) for performing correlation arithmetic operations between the input acoustic signal (Sind) and the reference signal (RS), and for outputting a first arithmetic result (CC1); an arithmetic result storage part (304) for storing a first arithmetic result; a second correlation arithmetic unit (305) for performing correlation arithmetic operations between a stored value (CCD1) stored in the past by the arithmetic result storage part and the first arithmetic result, and for outputting a second arithmetic result (CC2); and Doppler amount arithmetic parts (206, 207) for calculating Doppler amounts in the input acoustic signal (Sind) on the basis of the second arithmetic result.SELECTED DRAWING: Figure 4 |
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QUADRATURE OSCILLATOR WITH FEEDBACK PHASE MISMATCH CORRECTION / INTERSIL AMERICAS INC., US A quadrature oscillator 227 with phase error correction including a local oscillator 229 that generates a single-ended clock signal, a single-ended to differential converter 301, 303 that converts the clock signal to a differential clock signal, a quadrature generator 305, 307 that converts the differential clock signal into I and Q carrier signals, a phase error detector 313 that measures a phase error between the I and Q carrier signals, and a feedback amplifier 317, 319 that modifies the differential clock signal based on measured phase error. The feedback amplifier applies the measured phase error as a DC offset to an AC differential clock signal. A transconductor A1-Q4, 405 converts the differential clock voltage signal into two pairs of differential current clock signals Ca, Cb, where the quadrature generator generates I and Q current signal outputs from the two pairs of differential current clock signals. The phase error detector generates a phase error voltage E2, and the feedback amplifier includes a transconductance stage 601, 603, 605 that converts phase error voltage into a DC correction current and that adds the correction current to each of he two pairs of AC differential current clock signals.L'invention concerne un oscillateur en quadrature (227) avec correction d'erreur de phase comprenant un oscillateur local (229) qui produit un signal d'horloge asymetrique, un convertisseur permettant le passage du mode asymetrique au mode differentiel (301, 303) et qui convertit le signal d'horloge en un signal d'horloge differentiel, un generateur en quadrature (305, 307) qui convertit le signal d'horloge differentiel en signaux porteurs I et Q, un detecteur d'erreur de phase (313) qui mesure une erreur de phase entre les signaux de porteuses I et Q, ainsi qu'un amplificateur a reaction (317, 319) qui modifie le signal d'horloge differentiel sur la base de l'erreur de phase mesuree. L'amplificateur a reaction applique l'erreur de phase mesuree comme un decalage CC a un signal d'horloge differentiel CA. Un transconducteur (Q1-Q4, 405) convertit le signal d'horloge a tension differentielle en deux paires de signaux d'horloge a courant differentiel (Ca, Cb), processus au cours duquel le generateur en quadrature produit des emissions de signaux de courant I et Q a partir des deux paires de signaux d'horloge a courant differentiel. Le detecteur d'erreur de phase genere une tension d'erreur de phase (E2) et l'amplificateur a reaction inclut un etage de transconductance (601, 603, 605) qui convertit la tension d'erreur de phase en un courant de correction CC et ajoute le courant de correction a chacune des deux paires de signaux d'horloge a courant differentiel CA. |
ScienceON '논문' 검색
더보기ScienceON '보고서' 검색
더보기| No | 제목 / 내용 |
|---|---|
| 1 |
컴퓨터를 이용한 통합생산자동화 기술 개발;사출성형금형의 생산자동화 CIM 모델플렌트 한석균 , 한국과학기술연구원 , 1991 |
| 2 |
정보통신망 신뢰성 및 안전성 확보방안연구 - 자율규제 중심으로 - 김명아 , 한국인터넷진흥원(KISA) , 2009 |
| 3 |
열차제어/진단장치 실용기술개발 이은규 , 한국철도기술연구원 , 2007 |
| 4 |
에너지 재료 신뢰성 측정기술 개발 황찬용 , 한국표준과학연구원 , 2012 |
| 5 |
덴드리머(Dendrimer) : 근골격계 자가면역 요법의 패러다임 이혜미 , 한국표준과학연구원 , 2017 |
| 6 |
덴드리머(Dendrimer) : 근골격계 자가면역 요법의 패러다임 이혜미 , 한국표준과학연구원 , 2017 |
| 7 |
공통평가기준 3.0 분석 최윤성 , 성균관대학교 , 2006 |
| 8 |
고온초전도 coated conductors 개발 박배호 , 한국전기연구원 , 2007 |
| 9 |
고온초전도 coated conductor 개발 김호섭 , 한국전기연구원 , 2007 |
| 10 |
감시정찰 센서네트워크 개발 김호섭 , 한국전자통신연구원 , 2009 |