DE69229247D1 - Bild-Erkennungsmischer - Google Patents

Bild-Erkennungsmischer

Info

Publication number
DE69229247D1
DE69229247D1 DE69229247T DE69229247T DE69229247D1 DE 69229247 D1 DE69229247 D1 DE 69229247D1 DE 69229247 T DE69229247 T DE 69229247T DE 69229247 T DE69229247 T DE 69229247T DE 69229247 D1 DE69229247 D1 DE 69229247D1
Authority
DE
Germany
Prior art keywords
mixer
image recognition
recognition
image
recognition mixer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
DE69229247T
Other languages
English (en)
Other versions
DE69229247T2 (de
Inventor
Raghbir S Tahim
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
DirecTV Group Inc
Original Assignee
Hughes Electronics Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hughes Electronics Corp filed Critical Hughes Electronics Corp
Application granted granted Critical
Publication of DE69229247D1 publication Critical patent/DE69229247D1/de
Publication of DE69229247T2 publication Critical patent/DE69229247T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D9/00—Demodulation or transference of modulation of modulated electromagnetic waves
    • H03D9/06—Transference of modulation using distributed inductance and capacitance
    • H03D9/0608—Transference of modulation using distributed inductance and capacitance by means of diodes
    • H03D9/0633—Transference of modulation using distributed inductance and capacitance by means of diodes mounted on a stripline circuit
    • H03D9/0641—Transference of modulation using distributed inductance and capacitance by means of diodes mounted on a stripline circuit located in a hollow waveguide
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P1/00—Auxiliary devices
    • H01P1/20—Frequency-selective devices, e.g. filters
    • H01P1/213—Frequency-selective devices, e.g. filters combining or separating two or more different frequencies
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D2200/00—Indexing scheme relating to details of demodulation or transference of modulation from one carrier to another covered by H03D
    • H03D2200/0001—Circuit elements of demodulators
    • H03D2200/0017—Intermediate frequency filter
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D7/00—Transference of modulation from one carrier to another, e.g. frequency-changing
    • H03D7/14—Balanced arrangements
    • H03D7/1408—Balanced arrangements with diodes

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
  • Radar Systems Or Details Thereof (AREA)
DE69229247T 1991-04-29 1992-04-24 Bild-Erkennungsmischer Expired - Fee Related DE69229247T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/692,412 US5265268A (en) 1991-04-29 1991-04-29 Image recovery mixer

Publications (2)

Publication Number Publication Date
DE69229247D1 true DE69229247D1 (de) 1999-07-01
DE69229247T2 DE69229247T2 (de) 1999-09-23

Family

ID=24780481

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69229247T Expired - Fee Related DE69229247T2 (de) 1991-04-29 1992-04-24 Bild-Erkennungsmischer

Country Status (4)

Country Link
US (1) US5265268A (de)
EP (1) EP0511604B1 (de)
CA (1) CA2064979C (de)
DE (1) DE69229247T2 (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5765100A (en) * 1995-02-03 1998-06-09 Symbol Technologies, Inc. Communication diversity by image reception
US6427069B1 (en) * 2000-05-12 2002-07-30 Israel Galin Balanced all-wavelength sub-millimeter microwave subharmonic mixer
FR2818385B1 (fr) * 2000-12-15 2004-06-04 Thomson Csf Radar large bande et modulateur, notamment pour commuter des ondes hyperfrequence sur une tres courte duree
CN100546098C (zh) * 2004-03-10 2009-09-30 东京毅力科创株式会社 分配器和分配方法，等离子处理系统和方法，以及lcd的制造方法
CN106207346A (zh) * 2016-07-27 2016-12-07 中国电子科技集团公司第四十研究所 一种低本振功率的宽中频毫米波基波混频电路
CN108054480B (zh) * 2017-12-11 2019-06-07 合肥中科离子医学技术装备有限公司 一种用于发射机的多路功率合成装置

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3562651A (en) * 1968-05-27 1971-02-09 Watkins Johnson Co Microwave hybrid junction circuit and frequency translators constructed therefrom
US3681697A (en) * 1969-12-31 1972-08-01 Westinghouse Electric Corp Wideband image terminated mixer
NL7704644A (nl) * 1977-04-28 1978-10-31 Hollandse Signaalapparaten Bv Mengelement.
US4291415A (en) * 1979-12-03 1981-09-22 Microwave Associates, Inc. Microwave integrated circuit double balanced mixer
IT1155664B (it) * 1982-03-25 1987-01-28 Sip Dispositivo di guida d onda per la separazione di segnali a radiofrequenza di diversa frequenza e polarizzazione
US4654887A (en) * 1985-11-04 1987-03-31 Raytheon Company Radio frequency mixer

Also Published As

Publication number Publication date
CA2064979A1 (en) 1992-10-30
US5265268A (en) 1993-11-23
EP0511604A3 (en) 1994-06-08
DE69229247T2 (de) 1999-09-23
CA2064979C (en) 1997-03-25
EP0511604B1 (de) 1999-05-26
EP0511604A2 (de) 1992-11-04

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee