KR830004015A - Tuning method of trap circuit and double trapping of adjacent channel sound - Google Patents

Tuning method of trap circuit and double trapping of adjacent channel sound Download PDF

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Publication number
KR830004015A
KR830004015A KR1019800001640A KR800001640A KR830004015A KR 830004015 A KR830004015 A KR 830004015A KR 1019800001640 A KR1019800001640 A KR 1019800001640A KR 800001640 A KR800001640 A KR 800001640A KR 830004015 A KR830004015 A KR 830004015A
Authority
KR
South Korea
Prior art keywords
frequency
amplification
trap circuit
signal
trap
Prior art date
Application number
KR1019800001640A
Other languages
Korean (ko)
Other versions
KR830002443B1 (en
Inventor
이얼 제리어르트 제랄르드
미첼 에반스 로버트
Original Assignee
에드와드 제이 노오턴
알. 씨. 에이 코퍼레이션
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
Priority claimed from US06/032,026 external-priority patent/US4272743A/en
Priority claimed from US06/032,025 external-priority patent/US4263619A/en
Application filed by 에드와드 제이 노오턴, 알. 씨. 에이 코퍼레이션 filed Critical 에드와드 제이 노오턴
Publication of KR830004015A publication Critical patent/KR830004015A/en
Application granted granted Critical
Publication of KR830002443B1 publication Critical patent/KR830002443B1/en

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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
    • H04N5/60—Receiver circuitry for the reception of television signals according to analogue transmission standards for the sound signals
    • 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
    • H04N5/4446—IF amplifier circuits specially adapted for B&W TV
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J3/00—Continuous tuning
    • H03J3/02—Details
    • H03J3/06—Arrangements for obtaining constant bandwidth or gain throughout tuning range or ranges
    • H03J3/08—Arrangements for obtaining constant bandwidth or gain throughout tuning range or ranges by varying a second parameter simultaneously with the tuning, e.g. coupling bandpass filter

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Superheterodyne Receivers (AREA)
  • Noise Elimination (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)

Abstract

내용 없음No content

Description

트랩회로의 동조방법 및 인접채널 음향의 이중 트래핑Tuning method of trap circuit and double trapping of adjacent channel sound

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 본 발명의 원리에 의해 구성된 저임피던스 회로망의 부분적인 계통도 및 개요도. 제2도는 발명의 원리에 의해 구성된 고임피던스 회로망의 부분적인 계통도 및 개요도. 제6도는 본 발명의 방법을 실행하도록 조정된 장치의 부분적인 계통도 및 개요도.1 is a partial schematic and schematic diagram of a low impedance network constructed in accordance with the principles of the present invention. 2 is a partial schematic and schematic diagram of a high impedance network constructed by the principles of the invention. 6 is a partial schematic and schematic diagram of a device adapted to carry out the method of the present invention.

Claims (2)

수신된 무선 주파수 수신호를 중간 주파수로 변환하는 수단과 첫째 중간 주파수에서 선택된 텔레비전 채널의 신호성분과 둘째 중간 주파수에서 인접의 텔레비전의 채널의 신호성분이 통상적인 주파수 위치 주위의 중앙으로 부여된 주파수 범위내로 나타나게 되는 것을 포함하는 텔레비전 수신기에 있어서 중간 주파수 신호 진행장치가 상기 중간 주파수 신호를 증폭하는 수단과 회로망이 중간의 상기 변환 수단과 증폭수단을 결합하고 상기 회로망이 카스케이드에서 첫째 트랩회로가 상기 부여된 주파수 범위내에 있고 상기 명목 주파수 위치에 있는 셋째 주파수를 동조하고 둘째 트랩회로가 상기 부여된 주파수 범위내에 있고 상기 명목 주파수 위치에 아래에 있는 넷째 주파수로 동조하는 것을 포함하는 것을 특징으로 하는 장치.Means for converting the received radio frequency signal into an intermediate frequency, the signal component of the television channel selected at the first intermediate frequency and the signal component of the channel of the adjacent television at the second intermediate frequency within a frequency range imparted around a normal frequency position In a television receiver comprising: means for amplifying said intermediate frequency signal and said network combining said intermediate means with said converting means and amplifying means, said network being provided with said first trap circuit in the cascade; Tuning a third frequency that is within a frequency range and at the nominal frequency position and a second trap circuit tunes to a fourth frequency that is within the given frequency range and below the nominal frequency position. 명목주파수에서 트랩이 최대감쇠를 제공하는 주파수를 놓기 위한 상기 트랩 회로의 하나를 동조하는 방법에서In a method of tuning one of the trap circuits to set the frequency at which the trap provides maximum attenuation at nominal frequencies (a) 바라는 주파수를 포함하는 부여된 주파수 범위 위로 상기 트랩회로에 주파수 증대의 진행에서 계속적으로 다른 주파수의 일정한 증폭신호를 적용하고(a) continuously applying a constant amplified signal of a different frequency to the trap circuit in the course of increasing frequency over the given frequency range including the desired frequency; (b) 각각 다른 주파수에서 트랩회로에 의하여 수정된 바와 같은 상기 신호의 증폭을 검파하고(b) detect the amplification of the signal as modified by the trap circuit at different frequencies; (c) 결과로서 검파된 증폭을 저장하고(c) save the detected amplification as a result; (d) 증폭차이가 미리 결정된 최소 차이보다 크고 상기 진행을 가진 증폭에서 증가의 극성을 지시하고 상기 미리 결정된 최소 차이보다 큰 증폭 차이의 상속자이고 상기 진행을 가진 증폭에서 극성의 감소를 지시하는 것이 보일 때까지 저장된 증폭의 하나를 계속적으로 비교하고(d) it is seen that the amplification difference is greater than the predetermined minimum difference and indicates the polarity of the increase in the amplification with the progression and is an heir of the amplification difference that is greater than the predetermined minimum difference and indicates a decrease in the polarity in the amplification with the progression. Continue to compare one of the stored amplifications until (e) 첫째 지명된 증폭에 의하여 지시된 변조의 주파수와 상기 바라는 주파수 사이의 주파수 차이에 의하여 상기 트랩회로를 조정하는 단계를 가지는 것을 특징으로 하는 방법(e) adjusting the trap circuit by a frequency difference between the frequency of modulation indicated by the first named amplification and the desired frequency. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019800001640A 1979-04-20 1980-04-21 Intermediate Frequency Signal Processing Device KR830002443B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US06/032,026 US4272743A (en) 1979-04-20 1979-04-20 Method for tuning a filter circuit
US32026 1979-04-20
US06/032,025 US4263619A (en) 1979-04-20 1979-04-20 Double trapping of adjacent channel sound
US32025 2001-12-21

Publications (2)

Publication Number Publication Date
KR830004015A true KR830004015A (en) 1983-06-30
KR830002443B1 KR830002443B1 (en) 1983-10-26

Family

ID=26707876

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019800001640A KR830002443B1 (en) 1979-04-20 1980-04-21 Intermediate Frequency Signal Processing Device

Country Status (6)

Country Link
KR (1) KR830002443B1 (en)
DE (1) DE3014983C2 (en)
FI (1) FI801164A (en)
FR (1) FR2454735A1 (en)
GB (1) GB2049325B (en)
IT (1) IT1141926B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3318197C1 (en) * 1983-05-19 1984-10-04 Deutsche Thomson-Brandt Gmbh, 7730 Villingen-Schwenningen Input circuitry for television receivers
DE10106071C1 (en) 2001-02-09 2002-07-11 Harman Becker Automotive Sys Television receiver has control signal for selective filter stage obtained from signal representing reception field strength

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2907960A (en) * 1954-04-26 1959-10-06 Rca Corp Signal transfer apparatus
US3217096A (en) * 1961-06-02 1965-11-09 Motorola Inc Signal coupling and trap network
US3562417A (en) * 1968-06-17 1971-02-09 Zenith Radio Corp Signal-translating filter network for a television receiver

Also Published As

Publication number Publication date
IT1141926B (en) 1986-10-08
DE3014983A1 (en) 1980-11-06
GB2049325B (en) 1983-10-26
GB2049325A (en) 1980-12-17
KR830002443B1 (en) 1983-10-26
FR2454735A1 (en) 1980-11-14
DE3014983C2 (en) 1982-10-14
IT8021476A0 (en) 1980-04-18
FI801164A (en) 1980-10-21

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