KR840006116A - Digital auto-tuning device - Google Patents

Digital auto-tuning device Download PDF

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KR840006116A
KR840006116A KR1019830004077A KR830004077A KR840006116A KR 840006116 A KR840006116 A KR 840006116A KR 1019830004077 A KR1019830004077 A KR 1019830004077A KR 830004077 A KR830004077 A KR 830004077A KR 840006116 A KR840006116 A KR 840006116A
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South Korea
Prior art keywords
signal
local oscillation
intermediate frequency
tuning control
error
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KR1019830004077A
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Korean (ko)
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KR920009011B1 (en
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톨트스 줄리
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글렌 에이취. 브르스틀
알. 씨. 에이 코포레이션
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Priority claimed from US06/413,769 external-priority patent/US4485404A/en
Priority claimed from US06/413,762 external-priority patent/US4484221A/en
Application filed by 글렌 에이취. 브르스틀, 알. 씨. 에이 코포레이션 filed Critical 글렌 에이취. 브르스틀
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    • 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
    • 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

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
  • Television Receiver Circuits (AREA)
  • Measuring Frequencies, Analyzing Spectra (AREA)

Abstract

내용 없음No content

Description

디지탈 자동 미동조 장치Digital auto-tuning device

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

제1도는 본 발명이 양호하게 실시되는 동조 장치의 약블록도,1 is a weak block diagram of a tuning device in which the present invention is preferably carried out.

제2도 내지 제3도는 본 발명이 양호한 실시예의 부분략도.2 to 3 are partial schematic views of embodiments in which the present invention is preferred.

Claims (13)

각 채널에 대응하는 라디오 주파수신호 즉 수평 귀선 기간에서 일어나는 상 정보를 포함하는 비데오정보로 변조된 상 반송파를 하며 수직 귀선기간에서 발생되는 라디오 주파수신호의 입력과 동조 제어신호에 응답하여 채택된 채널에 대응하는 상기 라디오 주파수 신호중 하나를 선택하는 라디오 주파수 스테이지(3)와, 상기 등조제어 신호에 응답하여 선택된 채널에 관련되는 주파수를 갖는 국부발진 신호를 발생시키는 국부 발진기(7)와, 라디오 주파수신호의 상반송파와 같은 방식으로 변조된 상 반송파를 갖는 중간주파수 신호를 발생시키기 위해 상기 국부발진신호와 채택된 라디오 주파수 신호를 결합시키는 믹서(5)와, 상기 상 기간에 포함된 상정보를 나타내는 상신호를 발생하기 위해 중간주파수 신호에 응답하는 화상처리 수단(13,15,23)과, 상기 수평 및 수직 귀선 기간의 발생을 각각 나타내는 수평 및 수직동기신호를 발생시키기 위해 중간주파수 신호에 응답하는 동기처리 수단(17,25 ,27,29)을 구비한 텔레비젼 동조 제어장치에 있어서, 동조 제어신호 발생수단은 상기 동조 제어신호를 발생시키고 미동조 제어수단(30)은 동조제어신호 발생수단에 연결되어 중간 주파수 신호에 응답하여 인에블되어서 중간 주파수 상 반송파가 공창주파수를 갖도록 상기 동조 제어신호를 제어하고, 미동조 인에블링 수단(71)은 미동조제어수단(30)에 연결되어 각각의 선정된 일부 귀선기간동안 상기 중간주파수 신호에 응답하는 미동조 제어수단(30)를 선택적으로 인에블하기 위해 동기 신호중 어느하나에 응답하는 것을 특징으로 하는 텔레비젼 동조 제어장치.A phase carrier modulated with a radio frequency signal corresponding to each channel, that is, video information including phase information occurring in a horizontal blanking period, and a channel adopted in response to an input and a tuning control signal of a radio frequency signal generated in a vertical blanking period. A radio frequency stage 3 for selecting one of the corresponding radio frequency signals, a local oscillator 7 for generating a local oscillation signal having a frequency associated with a selected channel in response to the equalization control signal, and a radio frequency signal of A mixer 5 for combining the local oscillation signal and the adopted radio frequency signal to generate an intermediate frequency signal having a phase carrier modulated in the same manner as an upper carrier, and a phase signal representing phase information included in the phase period Image processing means (13, 15, 23) responsive to the intermediate frequency signal to generate a; A television tuning control device comprising synchronization processing means (17, 25, 27, 29) responsive to an intermediate frequency signal for generating horizontal and vertical synchronization signals indicative of the occurrence of horizontal and vertical retrace periods, respectively. The generating means generates the tuning control signal and the untuning control means 30 is connected to the tuning control signal generating means and is enabled in response to the intermediate frequency signal to generate the tuning control signal so that the carrier on the intermediate frequency has the empty frequency. And the untuned enabling means 71 are connected to the untuned control means 30 to selectively seal the untuned control means 30 in response to the intermediate frequency signal during each predetermined return period. Responsive to any one of the synchronization signals. 제1항에 의한 동조 제어장치에 있어서, 상기 미동조 인에블링 수단(501 내지 521를 포함하는 71)은 선정된 일부 수직 귀선기간동안 중간주파수신호에 응답하는 미동조 제어수단(30)를 선택적으로 인에블시키는 것을 특징으로 하는 텔레비젼 동조 제어장치.In the tuning control device according to claim 1, the untuning enable means (71 to 501 to 521) selectively selects the untuning control means (30) in response to the intermediate frequency signal during the selected vertical return period. TV tuning controller, characterized in that enabled by. 제2항에 의한 동조제어 장치에 있어서 상기 미동조 인에블링 수단(501 내지 521를 포함하는 71)은 테스트 또는 텔레텍스트 정보가 저장되는 부기간을 포함하지 않는 선정된 일부 수직 기선기간 동안 중간주파수 신호에 응답하는 미동조 제의수단(30)을 선택적으로 인에블시키는 것을 특징으로 하는 텔레비젼 동조제어장치.In the tuning control device according to claim 2, the untuned enabling means (71 to 501 to 521) includes an intermediate frequency for a predetermined vertical base period that does not include a sub period in which test or teletext information is stored. A television tuning control device, characterized in that selectively enables unsynchronizing means (30) in response to a signal. 제1항, 2항 또는 3항에 의한 동조제어 장치에 있어서, 상기 미동조 제어수단 (30)은 상기 미동조 인에블링 수단(501 내지 521를 포함하는 71)에 의해 인에블되어 중간 주파수 신호의 사이클을 카운트하는 카운팅 수단(30;201 내지 205,209,211, 217,221 내지 225,237 내지 253)을 포함하는 것을 특징으로 하는 텔레비젼 동조제어장치.In the tuning control apparatus according to claim 1, 2 or 3, the untuning control means 30 is enabled by the untuned enabling means 71, including 501 to 521, and has an intermediate frequency. And counting means (30; 201 to 205, 209, 211, 217, 221 to 225, 237 to 253) for counting cycles of the signal. 제4항에 의한 동조 제어장치에 있어서, 합성동조제어수단(41 내지 45,50, 21 3,215,227 내지 233,305,307,401 내지 407)은 상기 동조제어 신호 발생 장치에 연결되어 상기 국부 발진신호가 선정된 방식으로 선택된 채널의 공칭 주파수와 관련되는 주파수를 갖도록 동조제저신호를 제어하는 상기 국부 발진 신호에 응답하는 것을 특징으로 하는 텔레비젼 동조제어장치.In the tuning control device according to claim 4, the synthetic tuning control means (41 to 45, 50, 21 3, 215, 227 to 233, 305, 307, 401 to 407) are connected to the tuning control signal generator so that the local oscillation signal is selected in a selected channel. And a local oscillation signal for controlling the tuning deceleration signal to have a frequency associated with the nominal frequency of the signal generator. 제5항에 의한 동조제어장치에 있어서, 상기 카운팅수단(30)은 제1기간 동안은 상기 중간주파수 신호의 사이클을 카운트하고 제2기간동안은 상기 국부발진 신호의 사이클을 카운트하기 위해 선택적으로 인에블되는 카운터(201,203)를 포함하는 것을 특징으로 하는 텔레비젼 동조제어장치.In the tuning control device according to claim 5, the counting means 30 selectively checks the cycle of the intermediate frequency signal during the first period and counts the cycle of the local oscillation signal during the second period. And a counter (201, 203) that is enabled. 제2항에 의한 동조제어장치에 있어서, 상기 동조 제어수단은 상기 미동조 인에블링 수단에 의해 인에블되어 선정된 중간주파수 측정기간 동안 중간주파수 신호의 사이클을 카운트하는 카운터 수단(30; 201 내지 205,207,209,211,217,221 내지 225,237 내지 253)과 카운터 수단에 연결되어 중간주파수 상 반송파의 공칭주파수에 대응하는 선정된 중간주파수 카운트와 중간주파수 측정기간이 종결되었을 때 중간주파수 카운터 수단의 카운트와의 변이에 따라 "저 카운트 중간주파수 에러"신호 또는 "고 카운트 중간주파수 에러"신호를 발생시키는 중간주파수 에러신호 발생수단(301,303,309 내지 315)를 포함하며, 상기 동조 제어신호발생 수단은 에러신호 발생수단에 연결되어 상기 중간 주파수 에러신호 발생장치에 의해 발생되는 저카운트 중간주파수에 러신호 또는 고카운트 중간주파수 에러"신호에 따라 올림 차순 또는 내림 차순으로 카운트하는 업/다운 카운팅 수단(55)과 업/다운 카운팅 수단에 연결되어 업/다운 카운팅 수단의 카운트의 평균치로 펄스신호를 발생시키는 펄스발생수단(65,37,57)과 상기 동조 제어신호를 발생시키기 위해 펄스신호를 필터하는 필터링수단(59)을 포함하는 것을 특징으로 하는 텔레비젼 동조제어장치.3. The tuning control device according to claim 2, wherein the tuning control means comprises: counter means (30; 201) for counting cycles of the intermediate frequency signal during a predetermined intermediate frequency measurement period enabled and selected by the untuned enabling means; 205, 207, 209, 211, 217, 221, 225, 237, and 253) and a predetermined intermediate frequency count corresponding to the nominal frequency of the intermediate frequency carrier, and the variation of the count of the intermediate frequency counter means when the intermediate frequency measurement period is terminated. Intermediate frequency error signal generating means (301, 303, 309 to 315) for generating a count intermediate frequency error "signal or a " high count intermediate frequency error " signal, wherein the tuning control signal generating means is connected to an error signal generating means and connected to the intermediate frequency error signal generating means. Low count intermediate frequency error signal or high signal generated by the error signal generator Pulse generation for generating a pulse signal with an average value of the counts of the up / down counting means connected to the up / down counting means 55 and the up / down counting means for counting in the ascending or descending order according to the "Count intermediate frequency error" signal. Means (65, 37, 57) and filtering means (59) for filtering a pulse signal to generate said tuning control signal. 제7항에 의한 동조 제어장치에 있어서, 상기 펄스발생 수단은 업/다운 카운팅수단(55)의 카운트에 따라 주어진 기간 동안 많은 펄스를 발생시키기 위해 2진을 증배기를 포함하는 것을 특징으로 하는 텔레비젼 동조 제어장치.The tuning device according to claim 7, wherein the pulse generating means comprises a binary multiplier to generate a large number of pulses for a given period according to the count of the up / down counting means (55). Control unit. 제8항에 의한 동조 제어장치에 있어서, 합성 동조 제어수단(41 내지 45,50,2 13,215,219,227 내지 233,305,307,401 내지 407)은 상기 동조 제어신호 발생수단에 연결되어 국부발진 신호가 선정된 방식으로 채택된 채널의 공칭 주파수와 관련되는 필요한 주파수를 갖도록 동조 제어신호를 제어하며, 상기 합성동조제어수단(301, 303,309, 내지 315)은 선정된 국부 발진측정 기간동안 국부발진 신호의 사이클을 카운트하는 국부 발진카운팅 수단(213,215,219,227 내지 233,401 내지 407)을 포함하며, 국부발진에러 신호 발생수단(305,307)은 국부 발진 카운팅 수단에 연결되어 국부발진 측정기간이 종결되었을 때 필요한 국부발진 주파수에 대응하는 선정된 국부발진 카운트와 관계하는 상기 국부발진 카운팅 수단의 카운트에 따라 "저 카운트 국부발진 에러"신호 또는 "그 카운트 국부발진 에러"신호를 발생시키며, 업/다운 카운팅수단(55)은 국부발진 에러"신호 발생수단에 연결되어 국부발진 에러신호 발생수단에 의해 발생되는 "저 카운트 국부발진 에러" 또는 "고 카운트 국부발진 에러 신호"에 따라 올림차순 또는 내림차순으로 카운팅하는 것을 특징으로 하는 텔레비젼 동조 제어장치.In the tuning control apparatus according to claim 8, the synthetic tuning control means (41 to 45, 50, 2 13, 215, 219, 227 to 233, 305, 307, 401 to 407) is connected to the tuning control signal generating means so that a local oscillation signal is adopted in a selected manner. Local tuning counting means for controlling the tuning control signal to have a required frequency associated with the nominal frequency of the step, wherein the synthesized tuning control means 301, 303, 309 to 315 count the cycles of the local oscillation signal during the selected local oscillation measurement period. (213, 215, 219, 227 to 233, 401 to 407), wherein the local oscillation error signal generating means (305, 307) is connected to the local oscillation counting means and relates to a predetermined local oscillation count corresponding to the local oscillation frequency required when the local oscillation measurement period is terminated. According to the count of the local oscillating counting means, " low count local oscillation error " "Low-count local oscillation error" or "high-count local oscillation error" generated by the local oscillation error signal generating means connected to the local oscillation error signal generating means, with the up / down counting means 55 being connected to the local oscillation error signal generating means. And counting in ascending or descending order according to " signal ". 제9항에 의한 동조 제어장치에 있어서, 모드제어 수단(45)은 새로운 채널이 선택되면 업/다운 카운팅 수단(55)이 합성 작동모드에서 "국부 발진 에러"신호에 응답토록 하며 합성작동 모드동안 국부발진 신호 주파수가 공칭주파수의 선정된 영역내에 놓여지면 업/다운 카운팅 수단(955)이 미동조 작동 모드에서 "중간 주파수 에러" 신호에 응답토록 하는 것을 특징으로 하는 텔레비젼 동조제어장치.In the tuning control device according to claim 9, the mode control means 45 causes the up / down counting means 55 to respond to the " local oscillation error " signal in the combined operation mode when a new channel is selected, and during the combined operation mode. And the up / down counting means (955) responds to an "intermediate frequency error" signal in the untuned mode of operation if the local oscillating signal frequency lies within a predetermined range of the nominal frequency. 제10항에 의한 동조 제어장치에 있어서, 업/다운 카운팅 수단(55)은 다단계 업/다운 카운터(55a,55b,55c 및 55d)와 모드 제어수단에 연결되어 합성작동 모드동안 국부발진 에러" 신호에 응답하는 다단계 업/다운 카운터의 연속적인 내림차순 단계군을 인에블시키는 단계 선택수단(81a,81b,81c,813,815a,815b,815c,817a,817b ,817c 및 819)을 포함하는 것을 특징으로 하는 텔레비젼 동조제어장치.In the tuning control device according to claim 10, the up / down counting means 55 is connected to the multi-stage up / down counters 55a, 55b, 55c and 55d and the mode control means so that the local oscillation error " And step selecting means (81a, 81b, 81c, 813, 815a, 815b, 815c, 817a, 817b, 817c, and 819) for enabling successive descending step groups of the multi-stage up / down counters in response to TV tuning controller. 제10항에 의한 동조 제어장치에 있어서, 상기 모드 제어수단(45)은 국부발진 카운팅 수단(305,307)에 연결되어 합성작동 모드동안 국부발진 카운팅 수단에 의해 발생되는 국부발진 에러신호의 센스가 변하는 것을 검출하는 센서 검출수단(915 , 917,919)과 상기 센스 검출수단(915,917,919)과 상기 단계 선택수단(81a,81b,81c, 813,815a,815b,815c)에 연결되어 합성 작동모드 동안 "국부 발진 에러"신호의 센스가 변할 때 상기 다단계 업/다운 카운터(55a,55b,55c,55d)의 연속적인 내림차순 단계군이 "국부 발진" 에러 신호에 응답토록하며 상기 업/다운 카운팅수단(55)에 연결되어 국부발진 신호의 센스가 선정될 여러 시간으로 변하게 될 때 상기 업/다운 카운팅 수단이 "중간 주파수 에러"신호에 응답토록 하는 것을 특징으로 하는 텔레비젼 동조 제어장치.In the tuning control device according to claim 10, the mode control means 45 is connected to the local oscillation counting means 305, 307 so that the sense of the local oscillation error signal generated by the local oscillation counting means changes during the combined operation mode. A local oscillation error signal during the synthesis mode of operation connected to the sensor detecting means 915, 917, 919 and the sense detecting means 915, 917, 919 and the step selection means 81a, 81b, 81c, 813, 815a, 815b, 815c for detecting. When the sense of is changed, the successive descending step groups of the multi-stage up / down counters 55a, 55b, 55c, and 55d respond to a "local oscillation" error signal and are connected to the up / down counting means 55 to local. And the up / down counting means causes the up / down counting means to respond to an "intermediate frequency error" signal when the sense of the oscillation signal is changed over several hours to be selected. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019830004077A 1982-09-01 1983-08-31 Digital automatic fine tuning controller KR920009011B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US06/413,769 US4485404A (en) 1982-09-01 1982-09-01 Digital aft system which is activated during vertical retrace intervals
US413762 1982-09-01
US413769 1982-09-01
US06/413,762 US4484221A (en) 1982-09-01 1982-09-01 Shared counter arrangement for a digital frequency locked loop tuning system for selectively measuring the frequencies of the LO and IF signals

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KR840006116A true KR840006116A (en) 1984-11-21
KR920009011B1 KR920009011B1 (en) 1992-10-12

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AT386713B (en) 1988-10-10
IT8322693A1 (en) 1985-03-02
ES8406020A1 (en) 1984-06-16
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JPH0793710B2 (en) 1995-10-09
HK59291A (en) 1991-08-09
AU567304B2 (en) 1987-11-19
ES525161A0 (en) 1984-06-16
IT1171083B (en) 1987-06-10
DE3331609A1 (en) 1984-03-01
GB2126813A (en) 1984-03-28
JPS5964980A (en) 1984-04-13
FR2541545B1 (en) 1989-06-30
ATA313583A (en) 1988-02-15
GB8323490D0 (en) 1983-10-05
IT8322693A0 (en) 1983-08-30
AU1854483A (en) 1984-03-08
KR920009011B1 (en) 1992-10-12
DE3331609C2 (en) 1988-01-21
GB2126813B (en) 1986-07-23

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