ES476969A1 - Perfeccionamientos en aparatos para recuperar informacion desenal de diferencia de color de una senal de crominancia co-dificada en forma secam. - Google Patents

Perfeccionamientos en aparatos para recuperar informacion desenal de diferencia de color de una senal de crominancia co-dificada en forma secam.

Info

Publication number
ES476969A1
ES476969A1 ES476969A ES476969A ES476969A1 ES 476969 A1 ES476969 A1 ES 476969A1 ES 476969 A ES476969 A ES 476969A ES 476969 A ES476969 A ES 476969A ES 476969 A1 ES476969 A1 ES 476969A1
Authority
ES
Spain
Prior art keywords
amplifier
limiter
input
stage
inputs
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
ES476969A
Other languages
English (en)
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 ES476969A1 publication Critical patent/ES476969A1/es
Expired 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
    • H04N11/18—Transmission systems characterised by the manner in which the individual colour picture signal components are combined using simultaneous and sequential signals, e.g. SECAM-system
    • H04N11/186—Decoding means therefor
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G11/00—Limiting amplitude; Limiting rate of change of amplitude ; Clipping in general
    • H03G11/06—Limiters of angle-modulated signals; such limiters combined with discriminators
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K5/00—Manipulating of pulses not covered by one of the other main groups of this subclass
    • H03K5/01—Shaping pulses
    • H03K5/08—Shaping pulses by limiting; by thresholding; by slicing, i.e. combined limiting and thresholding

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Processing Of Color Television Signals (AREA)

Abstract

Perfeccionamientos en aparatos para recuperar información de señal de diferencia de color de una señal de crominancia codificada en forma SECAM sujeta indeseablemente a variaciones en amplitud en una gama dada, cuyo aparato comprende la combinación de un limitador-amplificador de etapas múltiples que responde a la señal de crominancia, una red de defasaje que tiene un Terminal de entrada para generar en una señal alimentada al Terminal de entrada un defasaje de una magnitud que depende de la frecuencia, siendo dicha magnitud de defasaje prácticamente de 90º cuando la frecuencia de una señal alimentada al Terminal de entrada corresponde a un frecuencia de reposo de la subportadora de color SECAM, medios para alimentar la señal de salida del limitador-amplificador al Terminal de entrada de la red, un multiplicador de señal, que tiene un par de terminales de entrada y un Terminal de salida.
ES476969A 1978-01-18 1979-01-18 Perfeccionamientos en aparatos para recuperar informacion desenal de diferencia de color de una senal de crominancia co-dificada en forma secam. Expired ES476969A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB206778 1978-01-18

Publications (1)

Publication Number Publication Date
ES476969A1 true ES476969A1 (es) 1979-10-16

Family

ID=9733007

Family Applications (1)

Application Number Title Priority Date Filing Date
ES476969A Expired ES476969A1 (es) 1978-01-18 1979-01-18 Perfeccionamientos en aparatos para recuperar informacion desenal de diferencia de color de una senal de crominancia co-dificada en forma secam.

Country Status (6)

Country Link
US (1) US4232268A (es)
EP (1) EP0003393B1 (es)
AT (1) AT377881B (es)
DE (1) DE2963133D1 (es)
ES (1) ES476969A1 (es)
PL (1) PL120126B1 (es)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4287530A (en) * 1980-05-09 1981-09-01 Motorola Inc. Demodulator system including a tunable discriminator suitable for use in a secam television receiver
EP0040273B1 (en) * 1980-05-20 1984-04-25 Motorola, Inc. Phase detector for television tuning systems and the like
JPS5715505A (en) * 1980-07-03 1982-01-26 Toshiba Corp Fm demodulation circuit
US4362999A (en) * 1980-10-15 1982-12-07 National Semiconductor Corporation AM Stereo phase modulation decoder
US4400720A (en) * 1981-05-07 1983-08-23 Rca Corporation Dynamic de-emphasis compensation system
DE3127229A1 (de) * 1981-07-10 1983-01-20 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Demodulator
NL8302423A (nl) * 1983-07-07 1985-02-01 Philips Nv F.m. demodulatieschakeling.
US4608538A (en) * 1983-12-07 1986-08-26 Anderson Scientific FM quadrature detector with ferrite bead tuned circuit
GB8414452D0 (en) * 1984-06-06 1984-07-11 Motorola Inc Automatic gain control circuit
KR100304697B1 (ko) 1998-11-19 2001-09-24 윤종용 주파수 복조 장치 및 방법
US9734859B2 (en) * 2013-11-26 2017-08-15 Oracle International Corporation Quadrature track error signal for optical recording media and devices
CN115001411A (zh) * 2022-06-17 2022-09-02 成都仕芯半导体有限公司 带直流失配补偿的限幅放大器及对数检波器

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA211A (en) 1870-01-03 C. Mchaffie Improvements on common stove pipes
US3366889A (en) 1964-09-14 1968-01-30 Rca Corp Integrated electrical circuit
US3548326A (en) * 1967-07-31 1970-12-15 Sprague Electric Co Direct coupled limiter-discriminator circuit
US3678405A (en) * 1970-08-26 1972-07-18 Rca Corp Amplifier-limiter circuit with reduced am to pm conversion
GB1358551A (en) 1971-05-07 1974-07-03 Rca Corp Secam Pal Demodulation system
JPS5328361A (en) * 1976-08-27 1978-03-16 Sony Corp Quadratur e phase detection circuit

Also Published As

Publication number Publication date
US4232268A (en) 1980-11-04
DE2963133D1 (en) 1982-08-12
PL120126B1 (en) 1982-02-27
EP0003393A1 (en) 1979-08-08
EP0003393B1 (en) 1982-06-23
AT377881B (de) 1985-05-10
PL212814A1 (pl) 1979-09-24
ATA36779A (de) 1984-09-15

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 20001009