ES2098309T3 - Unidad de sintonizacion fina automatica (aft) controlada por un microprocesador. - Google Patents

Unidad de sintonizacion fina automatica (aft) controlada por un microprocesador.

Info

Publication number
ES2098309T3
ES2098309T3 ES91121965T ES91121965T ES2098309T3 ES 2098309 T3 ES2098309 T3 ES 2098309T3 ES 91121965 T ES91121965 T ES 91121965T ES 91121965 T ES91121965 T ES 91121965T ES 2098309 T3 ES2098309 T3 ES 2098309T3
Authority
ES
Spain
Prior art keywords
microprocessor
aft
image carrier
digital
counting
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 - Lifetime
Application number
ES91121965T
Other languages
English (en)
Inventor
Juri Tults
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.)
Technicolor USA Inc
Original Assignee
Thomson Consumer Electronics Inc
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 Thomson Consumer Electronics Inc filed Critical Thomson Consumer Electronics Inc
Application granted granted Critical
Publication of ES2098309T3 publication Critical patent/ES2098309T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H04N5/50—Tuning indicators; Automatic tuning control
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J1/00—Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general
    • H03J1/0008—Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general using a central processing unit, e.g. a microprocessor
    • H03J1/0041—Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general using a central processing unit, e.g. a microprocessor for frequency synthesis with counters or frequency dividers
    • H03J1/005—Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general using a central processing unit, e.g. a microprocessor for frequency synthesis with counters or frequency dividers in a loop
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J7/00—Automatic frequency control; Automatic scanning over a band of frequencies
    • H03J7/02—Automatic frequency control
    • H03J7/04—Automatic frequency control where the frequency control is accomplished by varying the electrical characteristics of a non-mechanically adjustable element or where the nature of the frequency controlling element is not significant
    • H03J7/06—Automatic frequency control where the frequency control is accomplished by varying the electrical characteristics of a non-mechanically adjustable element or where the nature of the frequency controlling element is not significant using counters or frequency dividers
    • H03J7/065—Automatic frequency control where the frequency control is accomplished by varying the electrical characteristics of a non-mechanically adjustable element or where the nature of the frequency controlling element is not significant using counters or frequency dividers the counter or frequency divider being used in a phase locked loop

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
  • Television Receiver Circuits (AREA)
  • Measuring Frequencies, Analyzing Spectra (AREA)
  • Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)

Abstract

UN SISTEMA DE SINTONIA DE UN RECEPTOR DE TELEVISION INCLUYE UNA UNIDAD DE SINTONIA AUTOMATICA DIGITAL (AFT) PARA GENERAR UNA SEÑAL DIGITAL AFT QUE REPRESENTE LA DESVIACION DE LA FRECUENCIA DEL PORTADOR DE IMAGEN DE LA SEÑAL IF DE UNA FRECUENCIA NOMINAL. LA UNIDAD DIGITAL INCLUYE UN CONTADOR (22) PARA CONTAR LOS CICLOS DEL PORTADOR DE IMAGEN DURANTE LOS INTERVALOS DE CONTEO. UNA ZONA DE LA SECCION IF, EL CONTADOR Y AL MENOS UNA PARTE DE LA SECCION DE PROCESADO DE SEÑALES DEL RECEPTOR DE TELEVISION ESTAN INCLUIDOS DENTRO DE UN CIRCUITO INTEGRADO (13). UN MICROPROCESADOR (17) ESTA ACOPLADO AL CIRCUITO INTEGRADO A TRAVES DE UN BUS DE DATOS EN SERIE. BAJO EL SOFTWARE DEL PROGRAMA DE CONTROL, EL MICROPROCESADOR (1) TRANSMITE LA INFORMACION DE CONTROL DE FUNCION Y DEL CONTROL DE CONTEO A TRAVES DE UN BUS DE DATOS EN SERIE, Y (3) EVALUA LA INFORMACION DE CONTEO PARA DETERMINAR LA DESVIACION DE LA FRECUENCIA DEL PORTADOR DE IMAGEN IF DE SU VALOR DE FRECUENCIA NOMINAL.
ES91121965T 1990-12-31 1991-12-20 Unidad de sintonizacion fina automatica (aft) controlada por un microprocesador. Expired - Lifetime ES2098309T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/635,829 US5163164A (en) 1990-12-31 1990-12-31 Microprocessor controlled digital aft unit

Publications (1)

Publication Number Publication Date
ES2098309T3 true ES2098309T3 (es) 1997-05-01

Family

ID=24549271

Family Applications (1)

Application Number Title Priority Date Filing Date
ES91121965T Expired - Lifetime ES2098309T3 (es) 1990-12-31 1991-12-20 Unidad de sintonizacion fina automatica (aft) controlada por un microprocesador.

Country Status (14)

Country Link
US (1) US5163164A (es)
EP (1) EP0493763B1 (es)
JP (1) JP2891581B2 (es)
KR (1) KR100269053B1 (es)
CN (1) CN1044958C (es)
BR (1) BR9105502A (es)
CA (1) CA2057116C (es)
DE (1) DE69125130T2 (es)
ES (1) ES2098309T3 (es)
FI (1) FI105614B (es)
HU (1) HU216468B (es)
MX (1) MX9102874A (es)
MY (1) MY108589A (es)
TR (1) TR25801A (es)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2880376B2 (ja) * 1993-06-10 1999-04-05 三菱電機株式会社 周波数安定化装置
KR960005932B1 (en) * 1993-12-22 1996-05-03 Lg Electronics Inc Channel memory apparatus & method
US5552838A (en) * 1993-12-24 1996-09-03 Kabushiki Kaisha Toshiba Apparatus for tuning offset signals by controlling a tuner based on a difference in frequency of signals tuned by that tuner
US5530924A (en) * 1994-07-05 1996-06-25 Ford Motor Company Radio station memory presets with stored audio effects
DE19860648A1 (de) * 1998-12-29 2000-07-20 Bosch Gmbh Robert Verfahren zur Frequenzkorrektur von Empfängern
US7076225B2 (en) * 2001-02-16 2006-07-11 Qualcomm Incorporated Variable gain selection in direct conversion receiver
KR100513319B1 (ko) * 2003-08-26 2005-09-07 삼성전기주식회사 디지탈 자동 미세 조정 방법 및 장치
US7995981B2 (en) * 2005-10-31 2011-08-09 Silicon Laboratories Inc. Receiver with image rejection calibration at an undesired picture carrier and method therefor
US7962113B2 (en) * 2005-10-31 2011-06-14 Silicon Laboratories Inc. Receiver with multi-tone wideband I/Q mismatch calibration and method therefor
KR20230143424A (ko) 2022-04-05 2023-10-12 한화오션 주식회사 분진 저감용 연마재 리사이클 시스템

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4031549A (en) * 1976-05-21 1977-06-21 Rca Corporation Television tuning system with provisions for receiving RF carrier at nonstandard frequency
JPS533713A (en) * 1976-06-30 1978-01-13 Matsushita Electric Ind Co Ltd Receiving frequency correction system
JPS533733A (en) * 1976-07-01 1978-01-13 Fujitsu Ltd Test unit of keyboard encoder
US4205347A (en) * 1977-04-30 1980-05-27 Sharp Kabushiki Kaisha Television signal determination in an automatic tuning system
ES8406020A1 (es) * 1982-09-01 1984-06-16 Rca Corp "perfeccionamientos introducidos en un aparato de control de sintonizacion para un sistema de television"
US4485404A (en) * 1982-09-01 1984-11-27 Rca Corporation Digital aft system which is activated during vertical retrace intervals
CA1259378A (en) * 1985-09-19 1989-09-12 Noriaki Omoto A.f.c. system for broad-band fm receiver
US4727591A (en) * 1986-09-04 1988-02-23 Arvin Industries, Inc. Microprocessor controlled tuning system
US4868892A (en) * 1987-05-08 1989-09-19 Rca Licensing Corporation Tuning system with provisions for calculating the local oscillator frequency from an aft characteristic
US5091785A (en) * 1989-04-20 1992-02-25 Thomson Consumer Electronics, Inc. Picture-in-picture circuitry using field rate synchronization

Also Published As

Publication number Publication date
HU913816D0 (en) 1992-03-30
JP2891581B2 (ja) 1999-05-17
MX9102874A (es) 1992-06-01
TR25801A (tr) 1993-09-01
FI916158A0 (fi) 1991-12-30
JPH0580087A (ja) 1993-03-30
EP0493763A1 (en) 1992-07-08
DE69125130D1 (de) 1997-04-17
CN1063193A (zh) 1992-07-29
BR9105502A (pt) 1992-09-01
KR920014227A (ko) 1992-07-30
HUT62739A (en) 1993-05-28
FI105614B (fi) 2000-09-15
FI916158A7 (fi) 1992-07-01
CA2057116C (en) 1996-03-19
EP0493763B1 (en) 1997-03-12
MY108589A (en) 1996-10-31
CN1044958C (zh) 1999-09-01
KR100269053B1 (ko) 2000-10-16
DE69125130T2 (de) 1997-06-19
HU216468B (hu) 1999-06-28
US5163164A (en) 1992-11-10
CA2057116A1 (en) 1992-07-01

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