HK54389A - Tuning system for a plural-band radio frequency receiver - Google Patents
Tuning system for a plural-band radio frequency receiverInfo
- Publication number
- HK54389A HK54389A HK543/89A HK54389A HK54389A HK 54389 A HK54389 A HK 54389A HK 543/89 A HK543/89 A HK 543/89A HK 54389 A HK54389 A HK 54389A HK 54389 A HK54389 A HK 54389A
- Authority
- HK
- Hong Kong
- Prior art keywords
- plural
- radio frequency
- frequency receiver
- band radio
- tuning system
- 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
- H03J5/246—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 using electronic means
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Superheterodyne Receivers (AREA)
- Channel Selection Circuits, Automatic Tuning Circuits (AREA)
- Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US06/363,567 US4418427A (en) | 1982-03-30 | 1982-03-30 | Tuning system for a multi-band television receiver |
US06/363,570 US4418428A (en) | 1982-03-30 | 1982-03-30 | Tuning system for a multi-band television receiver |
Publications (1)
Publication Number | Publication Date |
---|---|
HK54389A true HK54389A (en) | 1989-07-14 |
Family
ID=27002116
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
HK543/89A HK54389A (en) | 1982-03-30 | 1989-07-06 | Tuning system for a plural-band radio frequency receiver |
Country Status (8)
Country | Link |
---|---|
KR (1) | KR920002761B1 (en) |
AT (1) | AT386309B (en) |
DE (1) | DE3311640A1 (en) |
FI (1) | FI75962C (en) |
FR (1) | FR2530907B1 (en) |
GB (1) | GB2117588B (en) |
HK (1) | HK54389A (en) |
IT (1) | IT1175304B (en) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4598423A (en) * | 1985-02-28 | 1986-07-01 | Rca Corporation | Tuning circuit for a multiband tuner |
US4658437A (en) * | 1985-03-01 | 1987-04-14 | Rca Corporation | Tuning voltage tracking arrangement |
DE4132907A1 (en) * | 1991-10-04 | 1993-04-08 | Thomson Brandt Gmbh | FILTER ARRANGEMENT |
DE4318276A1 (en) * | 1993-06-03 | 1994-12-08 | Thomson Brandt Gmbh | Television tuner for terrestrial reception and satellite reception |
DE19628186A1 (en) * | 1996-07-12 | 1998-01-15 | Philips Patentverwaltung | Switchable band filter for multi-band tuners |
US6043721A (en) * | 1998-02-04 | 2000-03-28 | Motorola, Inc. | Dual band amplifier |
US6134452A (en) * | 1998-11-23 | 2000-10-17 | Motorola, Inc. | Multiple band mixer with common local oscillator |
US6298224B1 (en) * | 1999-02-22 | 2001-10-02 | Motorola, Inc. | Multiple frequency band receiver |
JP2002118795A (en) * | 2000-10-05 | 2002-04-19 | Alps Electric Co Ltd | Television signal reception tuner |
GB0122983D0 (en) | 2001-09-25 | 2001-11-14 | Zarlink Semiconductor Ltd | Rdio fequency tuner front end and tuner |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1297171B (en) * | 1967-10-28 | 1969-06-12 | Marcus Elektronik Gmbh | Tuning device for high-frequency electrical oscillations in the UHF and VHF range |
DE2828838C2 (en) * | 1977-07-01 | 1983-10-20 | Hitachi, Ltd., Tokyo | RF input circuit for television receivers |
US4189678A (en) * | 1977-08-18 | 1980-02-19 | Sanyo Electric Co., Ltd. | Combination VHF-UHF tuner for use in a television receiver |
JPS6038063B2 (en) * | 1978-05-29 | 1985-08-29 | 株式会社日立製作所 | TV tuner circuit |
JPS6017276B2 (en) * | 1979-07-02 | 1985-05-01 | 松下電器産業株式会社 | multi-format television receiver |
US4408348A (en) * | 1981-08-19 | 1983-10-04 | Rca Corporation | Multiband tuning system for a television receiver |
-
1983
- 1983-03-23 FI FI830993A patent/FI75962C/en not_active IP Right Cessation
- 1983-03-24 GB GB08308098A patent/GB2117588B/en not_active Expired
- 1983-03-29 IT IT20349/83A patent/IT1175304B/en active
- 1983-03-29 KR KR1019830001278A patent/KR920002761B1/en not_active IP Right Cessation
- 1983-03-30 FR FR838305275A patent/FR2530907B1/en not_active Expired - Fee Related
- 1983-03-30 DE DE19833311640 patent/DE3311640A1/en active Granted
- 1983-03-30 AT AT0112883A patent/AT386309B/en not_active IP Right Cessation
-
1989
- 1989-07-06 HK HK543/89A patent/HK54389A/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
DE3311640C2 (en) | 1990-03-22 |
FR2530907A1 (en) | 1984-01-27 |
GB8308098D0 (en) | 1983-05-05 |
FR2530907B1 (en) | 1992-02-14 |
GB2117588B (en) | 1985-11-27 |
FI830993L (en) | 1983-10-01 |
GB2117588A (en) | 1983-10-12 |
FI75962C (en) | 1988-08-08 |
ATA112883A (en) | 1987-12-15 |
FI830993A0 (en) | 1983-03-23 |
KR840004640A (en) | 1984-10-22 |
DE3311640A1 (en) | 1983-10-13 |
FI75962B (en) | 1988-04-29 |
IT8320349A0 (en) | 1983-03-29 |
IT1175304B (en) | 1987-07-01 |
AT386309B (en) | 1988-08-10 |
KR920002761B1 (en) | 1992-04-02 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PC | Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee) |