JPS5765027A - Broad band reception tuner - Google Patents
Broad band reception tunerInfo
- Publication number
- JPS5765027A JPS5765027A JP55141698A JP14169880A JPS5765027A JP S5765027 A JPS5765027 A JP S5765027A JP 55141698 A JP55141698 A JP 55141698A JP 14169880 A JP14169880 A JP 14169880A JP S5765027 A JPS5765027 A JP S5765027A
- Authority
- JP
- Japan
- Prior art keywords
- tuner
- reception
- terminal
- broad band
- cable
- 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.)
- Pending
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
Landscapes
- Channel Selection Circuits, Automatic Tuning Circuits (AREA)
- Superheterodyne Receivers (AREA)
Abstract
PURPOSE:To prevent the production of a spurious signal and to receive signals of broad band stably with simple constitution, by taking a cable TV as a duplex mixing system, in receiving broad band of each channel of VHF, cable TV and UHF. CONSTITUTION:The 1st VHF channel input terminal 16 is connected to a VHF tuner 2, and an IF output terminal 7 is connected to the tuner 2. A CATV tuner 4 is connected to the 2nd cable TVCATV channel input terminal 17, a switching circuit 23 connected to the post stage of a tuner 4 is connected to the 3rd UHF channel input terminal 18, the circuit 23 is connected to a UHF tuner 5, and this tuner 5 is connected to the tuner 2. At the reception of input signal from a terminal 17, the tuner 4 is for the reception of upper side wave of differential type and the tuner 5 is for the reception of lower side waves. At the reception of input signal from a terminal 18, the tuner 5 is operated for the reception of upper side waves of differential type, allowing to suppress the production of spurious signals with simple constitution.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55141698A JPS5765027A (en) | 1980-10-08 | 1980-10-08 | Broad band reception tuner |
| US06/306,854 US4419768A (en) | 1980-09-30 | 1981-09-29 | Wideband tuner for VHF, CATV and UHF television signals |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55141698A JPS5765027A (en) | 1980-10-08 | 1980-10-08 | Broad band reception tuner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5765027A true JPS5765027A (en) | 1982-04-20 |
Family
ID=15298121
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP55141698A Pending JPS5765027A (en) | 1980-09-30 | 1980-10-08 | Broad band reception tuner |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5765027A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6232647U (en) * | 1985-08-09 | 1987-02-26 |
-
1980
- 1980-10-08 JP JP55141698A patent/JPS5765027A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6232647U (en) * | 1985-08-09 | 1987-02-26 |
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