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ES8106997A1 - Perfeccionamientos en transcodificadores - Google Patents

Perfeccionamientos en transcodificadores

Info

Publication number
ES8106997A1
ES8106997A1 ES497981A ES497981A ES8106997A1 ES 8106997 A1 ES8106997 A1 ES 8106997A1 ES 497981 A ES497981 A ES 497981A ES 497981 A ES497981 A ES 497981A ES 8106997 A1 ES8106997 A1 ES 8106997A1
Authority
ES
Spain
Prior art keywords
sub
samples
carrier
circuit
components
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
Application number
ES497981A
Other languages
English (en)
Other versions
ES497981A0 (es
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.)
RCA Corp
Original Assignee
RCA 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 RCA Corp filed Critical RCA Corp
Publication of ES8106997A1 publication Critical patent/ES8106997A1/es
Publication of ES497981A0 publication Critical patent/ES497981A0/es
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N11/00—Colour television systems
    • H04N11/06—Transmission systems characterised by the manner in which the individual colour picture signal components are combined
    • H04N11/20—Conversion of the manner in which the individual colour picture signal components are combined, e.g. conversion of colour television standards
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/79—Processing of colour television signals in connection with recording
    • H04N9/7921—Processing of colour television signals in connection with recording for more than one processing mode
    • H04N9/7925—Processing of colour television signals in connection with recording for more than one processing mode for more than one standard

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Color Television Systems (AREA)
  • Processing Of Color Television Signals (AREA)
  • Amplitude Modulation (AREA)
  • Stereo-Broadcasting Methods (AREA)

Abstract

PROCEDIMIENTO PARA INVERTIR LA FASE DE UNO DE LOS DOS COMPONENTES DE LA SEÑAL DE UNA SUBPORTADORA MODULADA EN AMPLITUD DE CUADRATURA, EN TRANSCODIFICADORES. DEBIDO A UN CIRCUITO DE RETENCION (10) SE PRODUCEN MUESTRAS DE LA AMPLITUD DE UNA SUBPORTADORA, APLICADA AL TERMINAL (16), EN INSTANTES CORRESPONDIENTES A CADA CRUCE DE EJE DE CADA UNO DE LOS COMPONENTES DE LA SEÑAL; UN CIRCUITO INVERSOR (12) INVIERTE LA POLARIDAD DE LAS MUESTRAS ALTERNAS; UN FILTRO DE PASO BAJO (14) RECONSTRUYE LA SUBPORTADORA PARTIENDO DE LAS MUESTRAS INVERTIDAS Y SIN INVERTIR, Y UN CIRCUITO DE AJUSTE DE FASE (22) CONTROLA EL MOMENTO EN QUE SE ACTIVA EL CIRCUITO DE RETENCION DE MODO QUE LAS MUESTRAS PRODUCIDAS ALTERNATIVAMENTE REPRESENTEN LOS COMPONENTES DE LA SEÑAL DE LA SUBPORTADORA MODULADA EN AMPLITUD DE CUADRATURA.
ES497981A 1979-12-20 1980-12-19 Perfeccionamientos en transcodificadores Granted ES497981A0 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/105,548 US4286283A (en) 1979-12-20 1979-12-20 Transcoder

Publications (2)

Publication Number Publication Date
ES8106997A1 true ES8106997A1 (es) 1981-09-16
ES497981A0 ES497981A0 (es) 1981-09-16

Family

ID=22306444

Family Applications (1)

Application Number Title Priority Date Filing Date
ES497981A Granted ES497981A0 (es) 1979-12-20 1980-12-19 Perfeccionamientos en transcodificadores

Country Status (14)

Country Link
US (1) US4286283A (es)
JP (1) JPS56100585A (es)
AT (1) AT384699B (es)
AU (1) AU533908B2 (es)
DE (1) DE3048139A1 (es)
ES (1) ES497981A0 (es)
FI (1) FI803866A7 (es)
FR (1) FR2473241B1 (es)
GB (1) GB2066617B (es)
IT (1) IT1134833B (es)
NL (1) NL8006927A (es)
PL (1) PL228597A1 (es)
PT (1) PT72202B (es)
SE (1) SE8008781L (es)

Families Citing this family (42)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4414571A (en) * 1980-10-09 1983-11-08 Matsushita Electric Industrial Co., Ltd. Television receiver
US4519001A (en) * 1981-10-27 1985-05-21 Ampex Corporation Apparatus for providing dropout compensation and error concealment in a PAL format video information signal
JPS58161593A (ja) * 1982-03-19 1983-09-26 Toshiba Corp カラ−テレビジヨン信号変換回路
GB2118801B (en) * 1982-03-19 1986-05-14 Tokyo Shibaura Electric Co Color television signal conversion device
NL8203600A (nl) * 1982-09-17 1984-04-16 Philips Nv Hoofdeinde en ontvanger voor een signaaldistributiesysteem.
JPS60169294A (ja) * 1984-02-13 1985-09-02 Sony Corp Ｖｔｒ
JPS61258597A (ja) * 1985-05-11 1986-11-15 Ricoh Co Ltd Ｐａｌ方式の色位相作成方法
US5469218A (en) * 1991-07-23 1995-11-21 Canon Kabushiki Kaisha Image signal processing device with conversion of sample frequency of digital color-difference data signals
US5420887A (en) * 1992-03-26 1995-05-30 Pacific Communication Sciences Programmable digital modulator and methods of modulating digital data
US5799037A (en) * 1996-02-16 1998-08-25 David Sarnoff Research Center Inc. Receiver capable of demodulating multiple digital modulation formats
US6005640A (en) * 1996-09-27 1999-12-21 Sarnoff Corporation Multiple modulation format television signal receiver system
US6061551A (en) 1998-10-21 2000-05-09 Parkervision, Inc. Method and system for down-converting electromagnetic signals
US7515896B1 (en) 1998-10-21 2009-04-07 Parkervision, Inc. Method and system for down-converting an electromagnetic signal, and transforms for same, and aperture relationships
US6370371B1 (en) 1998-10-21 2002-04-09 Parkervision, Inc. Applications of universal frequency translation
US7236754B2 (en) 1999-08-23 2007-06-26 Parkervision, Inc. Method and system for frequency up-conversion
US7039372B1 (en) 1998-10-21 2006-05-02 Parkervision, Inc. Method and system for frequency up-conversion with modulation embodiments
US7027786B1 (en) 1998-10-21 2006-04-11 Parkervision, Inc. Carrier and clock recovery using universal frequency translation
US6560301B1 (en) 1998-10-21 2003-05-06 Parkervision, Inc. Integrated frequency translation and selectivity with a variety of filter embodiments
US6542722B1 (en) 1998-10-21 2003-04-01 Parkervision, Inc. Method and system for frequency up-conversion with variety of transmitter configurations
US6813485B2 (en) * 1998-10-21 2004-11-02 Parkervision, Inc. Method and system for down-converting and up-converting an electromagnetic signal, and transforms for same
US6853690B1 (en) 1999-04-16 2005-02-08 Parkervision, Inc. Method, system and apparatus for balanced frequency up-conversion of a baseband signal and 4-phase receiver and transceiver embodiments
US6879817B1 (en) 1999-04-16 2005-04-12 Parkervision, Inc. DC offset, re-radiation, and I/Q solutions using universal frequency translation technology
US6873836B1 (en) 1999-03-03 2005-03-29 Parkervision, Inc. Universal platform module and methods and apparatuses relating thereto enabled by universal frequency translation technology
US7110435B1 (en) 1999-03-15 2006-09-19 Parkervision, Inc. Spread spectrum applications of universal frequency translation
US7693230B2 (en) 1999-04-16 2010-04-06 Parkervision, Inc. Apparatus and method of differential IQ frequency up-conversion
US7065162B1 (en) 1999-04-16 2006-06-20 Parkervision, Inc. Method and system for down-converting an electromagnetic signal, and transforms for same
US7110444B1 (en) 1999-08-04 2006-09-19 Parkervision, Inc. Wireless local area network (WLAN) using universal frequency translation technology including multi-phase embodiments and circuit implementations
US8295406B1 (en) 1999-08-04 2012-10-23 Parkervision, Inc. Universal platform module for a plurality of communication protocols
US7072390B1 (en) * 1999-08-04 2006-07-04 Parkervision, Inc. Wireless local area network (WLAN) using universal frequency translation technology including multi-phase embodiments
US7082171B1 (en) 1999-11-24 2006-07-25 Parkervision, Inc. Phase shifting applications of universal frequency translation
US7292835B2 (en) 2000-01-28 2007-11-06 Parkervision, Inc. Wireless and wired cable modem applications of universal frequency translation technology
US7010286B2 (en) 2000-04-14 2006-03-07 Parkervision, Inc. Apparatus, system, and method for down-converting and up-converting electromagnetic signals
US7554508B2 (en) 2000-06-09 2009-06-30 Parker Vision, Inc. Phased array antenna applications on universal frequency translation
US7454453B2 (en) 2000-11-14 2008-11-18 Parkervision, Inc. Methods, systems, and computer program products for parallel correlation and applications thereof
US7010559B2 (en) 2000-11-14 2006-03-07 Parkervision, Inc. Method and apparatus for a parallel correlator and applications thereof
US7085335B2 (en) * 2001-11-09 2006-08-01 Parkervision, Inc. Method and apparatus for reducing DC offsets in a communication system
US7072427B2 (en) 2001-11-09 2006-07-04 Parkervision, Inc. Method and apparatus for reducing DC offsets in a communication system
JP4166466B2 (ja) * 2001-12-19 2008-10-15 ソニー株式会社 無線通信システム及び無線通信方法、無線通信装置及びその制御方法、並びにコンピュータ・プログラム
US7321640B2 (en) * 2002-06-07 2008-01-22 Parkervision, Inc. Active polyphase inverter filter for quadrature signal generation
US7379883B2 (en) 2002-07-18 2008-05-27 Parkervision, Inc. Networking methods and systems
US7460584B2 (en) 2002-07-18 2008-12-02 Parkervision, Inc. Networking methods and systems
IL196146A (en) * 2008-12-23 2014-01-30 Elta Systems Ltd Signal transmission system and method back to the source of transmission

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3783196A (en) * 1971-03-22 1974-01-01 Rca Corp High-density capacitive information records and playback apparatus therefor
GB1431378A (en) * 1972-04-19 1976-04-07 Rca Corp Colour information translating systems
GB1415519A (en) * 1972-10-09 1975-11-26 British Broadcasting Corp Colour television
GB1497865A (en) * 1973-12-28 1978-01-12 Sony Corp Magnetic recording and/or reproducing apparatus
GB1479976A (en) * 1974-09-13 1977-07-13 British Broadcasting Corp Conversion of colour television signals to and/or from interlaced form
US3966610A (en) * 1974-12-16 1976-06-29 Bird Machine Company, Inc. Filter
GB1536851A (en) * 1975-03-10 1978-12-20 Rca Corp Video carrier wave defect detection and compensation
GB1582984A (en) * 1976-08-09 1981-01-21 Rca Corp Video signal recording systems
US4203134A (en) * 1978-10-02 1980-05-13 Rca Corporation FM Signal demodulator with defect detection
US4195309A (en) * 1978-12-04 1980-03-25 Rca Corporation Video processing system including comb filters

Also Published As

Publication number Publication date
FI803866L (fi) 1981-06-21
IT8026836A0 (it) 1980-12-19
SE8008781L (sv) 1981-06-21
JPS56100585A (en) 1981-08-12
IT1134833B (it) 1986-08-20
DE3048139A1 (de) 1982-06-03
ATA621480A (de) 1987-05-15
GB2066617A (en) 1981-07-08
DE3048139C2 (es) 1988-01-07
AU6536280A (en) 1981-06-25
PT72202B (en) 1982-01-05
GB2066617B (en) 1984-02-08
JPH0347627B2 (es) 1991-07-19
FI803866A7 (fi) 1981-06-21
FR2473241A1 (fr) 1981-07-10
NL8006927A (nl) 1981-07-16
PT72202A (en) 1981-01-01
AU533908B2 (en) 1983-12-15
FR2473241B1 (fr) 1985-10-25
ES497981A0 (es) 1981-09-16
PL228597A1 (es) 1981-08-21
US4286283A (en) 1981-08-25
AT384699B (de) 1987-12-28

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