KR930000224Y1 - 저잡음 컨버터 - Google Patents
저잡음 컨버터 Download PDFInfo
- Publication number
- KR930000224Y1 KR930000224Y1 KR2019880012184U KR880012184U KR930000224Y1 KR 930000224 Y1 KR930000224 Y1 KR 930000224Y1 KR 2019880012184 U KR2019880012184 U KR 2019880012184U KR 880012184 U KR880012184 U KR 880012184U KR 930000224 Y1 KR930000224 Y1 KR 930000224Y1
- Authority
- KR
- South Korea
- Prior art keywords
- comparator
- relay
- noise converter
- switching
- low noise
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
- H03J5/00—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner
- H03J5/24—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner with a number of separate pretuned tuning circuits or separate tuning elements selectively brought into circuit, e.g. for waveband selection or for television channel selection
- H03J5/242—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner with a number of separate pretuned tuning circuits or separate tuning elements selectively brought into circuit, e.g. for waveband selection or for television channel selection used exclusively for band selection
- H03J5/244—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner with a number of separate pretuned tuning circuits or separate tuning elements selectively brought into circuit, e.g. for waveband selection or for television channel selection used exclusively for band selection using electronic means
Landscapes
- Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
- Channel Selection Circuits, Automatic Tuning Circuits (AREA)
- Noise Elimination (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP115479 | 1987-07-27 | ||
| JP1987115479U JPS6421536U (US06486227-20021126-C00005.png) | 1987-07-27 | 1987-07-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| KR930000224Y1 true KR930000224Y1 (ko) | 1993-01-18 |
Family
ID=14663541
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR2019880012184U KR930000224Y1 (ko) | 1987-07-27 | 1988-11-27 | 저잡음 컨버터 |
Country Status (6)
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5157786A (en) * | 1990-08-31 | 1992-10-20 | Thomson Consumer Electronics | Biasing networks for balanced mixers |
| JP4513562B2 (ja) * | 2004-12-28 | 2010-07-28 | アンデン株式会社 | リレー駆動回路 |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA948727A (en) * | 1972-04-07 | 1974-06-04 | Michael W. Mclernon | Signal receiver with a plurality of tuners and automatic switching system for cyclically energizing the same |
| US3924192A (en) * | 1974-06-03 | 1975-12-02 | Rca Corp | Multiband random channel address crystal-lock tuning system |
| JPS5850665Y2 (ja) * | 1977-06-02 | 1983-11-18 | ホーチキ株式会社 | 増幅器トラップ回路の遠隔制御装置 |
| JPS56166612A (en) * | 1980-05-26 | 1981-12-21 | Pioneer Electronic Corp | Level shifting circuit |
| US4672687A (en) * | 1985-01-29 | 1987-06-09 | Satellite Technology Services, Inc. | Polarity switch for satellite television receiver |
| JPS62115478A (ja) * | 1985-11-15 | 1987-05-27 | Canon Inc | 画像形成装置 |
-
1987
- 1987-07-27 JP JP1987115479U patent/JPS6421536U/ja active Pending
-
1988
- 1988-07-06 CA CA000571244A patent/CA1283709C/en not_active Expired - Lifetime
- 1988-07-25 US US07/223,614 patent/US4955076A/en not_active Expired - Lifetime
- 1988-07-27 EP EP88306932A patent/EP0301839B1/en not_active Expired
- 1988-07-27 DE DE8888306932T patent/DE3866461D1/de not_active Expired - Lifetime
- 1988-11-27 KR KR2019880012184U patent/KR930000224Y1/ko not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| EP0301839A2 (en) | 1989-02-01 |
| EP0301839B1 (en) | 1991-11-27 |
| CA1283709C (en) | 1991-04-30 |
| US4955076A (en) | 1990-09-04 |
| DE3866461D1 (de) | 1992-01-09 |
| EP0301839A3 (en) | 1989-05-03 |
| JPS6421536U (US06486227-20021126-C00005.png) | 1989-02-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A201 | Request for examination | ||
| E701 | Decision to grant or registration of patent right | ||
| REGI | Registration of establishment | ||
| FPAY | Annual fee payment |
Payment date: 20030109 Year of fee payment: 11 |
|
| EXPY | Expiration of term |