KR830008557A - 튜너 - Google Patents
튜너 Download PDFInfo
- Publication number
- KR830008557A KR830008557A KR1019810005034A KR810005034A KR830008557A KR 830008557 A KR830008557 A KR 830008557A KR 1019810005034 A KR1019810005034 A KR 1019810005034A KR 810005034 A KR810005034 A KR 810005034A KR 830008557 A KR830008557 A KR 830008557A
- Authority
- KR
- South Korea
- Prior art keywords
- frequency
- signal
- mixer
- intermediate frequency
- converter
- Prior art date
Links
- 230000010355 oscillation Effects 0.000 claims 4
- 238000006243 chemical reaction Methods 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 2
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
- H03J7/00—Automatic frequency control; Automatic scanning over a band of frequencies
- H03J7/18—Automatic scanning over a band of frequencies
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/06—Receivers
- H04B1/16—Circuits
- H04B1/26—Circuits for superheterodyne receivers
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
- H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
- H03B5/08—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance
- H03B5/12—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device
- H03B5/1206—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device using multiple transistors for amplification
- H03B5/1218—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device using multiple transistors for amplification the generator being of the balanced type
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
- H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
- H03B5/08—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance
- H03B5/12—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device
- H03B5/1231—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device the amplifier comprising one or more bipolar transistors
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
- H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
- H03B5/08—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance
- H03B5/12—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device
- H03B5/1237—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device comprising means for varying the frequency of the generator
- H03B5/124—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device comprising means for varying the frequency of the generator the means comprising a voltage dependent capacitance
- H03B5/1243—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being semiconductor device comprising means for varying the frequency of the generator the means comprising a voltage dependent capacitance the means comprising voltage variable capacitance diodes
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
- H03D7/00—Transference of modulation from one carrier to another, e.g. frequency-changing
- H03D7/16—Multiple-frequency-changing
- H03D7/161—Multiple-frequency-changing all the frequency changers being connected in cascade
- H03D7/163—Multiple-frequency-changing all the frequency changers being connected in cascade the local oscillations of at least two of the frequency changers being derived from a single oscillator
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
- H03B21/00—Generation of oscillations by combining unmodulated signals of different frequencies
- H03B21/01—Generation of oscillations by combining unmodulated signals of different frequencies by beating unmodulated signals of different frequencies
- H03B21/02—Generation of oscillations by combining unmodulated signals of different frequencies by beating unmodulated signals of different frequencies by plural beating, i.e. for frequency synthesis ; Beating in combination with multiplication or division of frequency
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Power Engineering (AREA)
- Superheterodyne Receivers (AREA)
Abstract
내용 없음
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제6도는 본 발명에 관한 튜너의 1실시예를 도시하는 블록도.
제7도는 본 발명의 튜너를 구성하는 국부 발진기 및 주파수 변환기의 1의 구체적 회로예를 도시하는 회로도.
Claims (1)
- 고주파신호 및 제1국부발진기로 부터의 발진신호를 제1혼합기에 각각 취입하여 주파수 변환을 하는 제1주파수 변환기와, 이 제1주파수 변환기의 출력신호로부터의 중간주파성분을 취출하여 증폭하는 제1중간주파부와 이 제1중간주파부로부터의 중간주파신호 및 제2국부발진기로부터의 발진신호를 제2혼합기에 각각 취입하여 주파수 변환을 하는 제2주파수변환기와, 이 제2주파수 변환기의 출력신호에서 제2중간주파성분을 취출하는 제2중간주파부를 구비한 튜너에 있어서, 상기 어느 한쪽의 주파수 변환기가 상기 제1 및 제2국부 발진기의 각 발진신호를 주파수 혼합기에 취입하여, 이 주파수 혼합기에 의해 상기 각 발진신호의 합 또는 차의 신호를 형성하고 또, 이 형성된 신호를 상기 한쪽의 주파수 변환기를 구성하는 혼합기에 공급하도록 구성된 것을 특징으로 하는 튜너.※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP184919 | 1980-12-25 | ||
JP55-184919 | 1980-12-25 | ||
JP55184919A JPS57107645A (en) | 1980-12-25 | 1980-12-25 | Tuner |
Publications (2)
Publication Number | Publication Date |
---|---|
KR830008557A true KR830008557A (ko) | 1983-12-10 |
KR860000441B1 KR860000441B1 (ko) | 1986-04-19 |
Family
ID=16161620
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019810005034A KR860000441B1 (ko) | 1980-12-25 | 1981-12-21 | 튜너 |
Country Status (4)
Country | Link |
---|---|
JP (1) | JPS57107645A (ko) |
KR (1) | KR860000441B1 (ko) |
DE (1) | DE3150625A1 (ko) |
GB (1) | GB2091508B (ko) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2143691A (en) * | 1983-07-22 | 1985-02-13 | Plessey Co Plc | A double superhet tuner |
JPS6150354U (ko) * | 1984-09-03 | 1986-04-04 | ||
US5016242A (en) * | 1988-11-01 | 1991-05-14 | Gte Laboratories Incorporated | Microwave subcarrier generation for fiber optic systems |
US4979230A (en) * | 1989-12-04 | 1990-12-18 | General Instrument Corporation | Up-conversion homodyne receiver for cable television converter with frequency offset to avoid adjacent channel interference |
JPH0468907A (ja) * | 1990-07-09 | 1992-03-04 | Kinseki Ltd | 周波数変換回路 |
CH682026A5 (ko) * | 1991-03-04 | 1993-06-30 | Siemens Ag Albis | |
ES2040628B1 (es) * | 1991-12-18 | 1995-12-16 | Iglesias Angel Sa | Dispositivo de traslacion de frecuencias de banda ancha. |
JP3358183B2 (ja) * | 1993-04-09 | 2002-12-16 | ソニー株式会社 | 時分割多重送受信装置 |
US5966646A (en) * | 1997-05-13 | 1999-10-12 | Ericsson, Inc. | Dual-band radio receiver |
GB0020527D0 (en) | 2000-08-22 | 2000-10-11 | Mitel Semiconductor Ltd | Digital tuner |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5414777A (en) * | 1977-07-06 | 1979-02-03 | Hitachi Ltd | Alarm device |
-
1980
- 1980-12-25 JP JP55184919A patent/JPS57107645A/ja active Pending
-
1981
- 1981-12-21 DE DE19813150625 patent/DE3150625A1/de not_active Ceased
- 1981-12-21 KR KR1019810005034A patent/KR860000441B1/ko active
- 1981-12-24 GB GB8138978A patent/GB2091508B/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
KR860000441B1 (ko) | 1986-04-19 |
GB2091508A (en) | 1982-07-28 |
GB2091508B (en) | 1984-05-31 |
DE3150625A1 (de) | 1982-08-05 |
JPS57107645A (en) | 1982-07-05 |
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