DE2812991C3 - Frequenzteilerschaltung für einen Fernsehtuner - Google Patents
Frequenzteilerschaltung für einen FernsehtunerInfo
- Publication number
- DE2812991C3 DE2812991C3 DE2812991A DE2812991A DE2812991C3 DE 2812991 C3 DE2812991 C3 DE 2812991C3 DE 2812991 A DE2812991 A DE 2812991A DE 2812991 A DE2812991 A DE 2812991A DE 2812991 C3 DE2812991 C3 DE 2812991C3
- Authority
- DE
- Germany
- Prior art keywords
- uhf
- switch
- vhf
- signals
- input
- 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.)
- Expired
Links
- 230000000903 blocking effect Effects 0.000 claims description 5
- 238000013016 damping Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 claims 1
- 230000000295 complement effect Effects 0.000 description 4
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 108010077519 Peptide Elongation Factor 2 Proteins 0.000 description 1
- 244000292604 Salvia columbariae Species 0.000 description 1
- 235000012377 Salvia columbariae var. columbariae Nutrition 0.000 description 1
- 235000001498 Salvia hispanica Nutrition 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 235000014167 chia Nutrition 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
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
- H03J5/02—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 variable tuning element having a number of predetermined settings and adjustable to a desired one of these settings
- H03J5/0245—Discontinuous tuning using an electrical variable impedance element, e.g. a voltage variable reactive diode, in which no corresponding analogue value either exists or is preset, i.e. the tuning information is only available in a digital form
- H03J5/0272—Discontinuous tuning using an electrical variable impedance element, e.g. a voltage variable reactive diode, in which no corresponding analogue value either exists or is preset, i.e. the tuning information is only available in a digital form the digital values being used to preset a counter or a frequency divider in a phase locked loop, e.g. frequency synthesizer
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H7/00—Construction or assembling of bulk storage containers employing civil engineering techniques in situ or off the site
- E04H7/02—Containers for fluids or gases; Supports therefor
- E04H7/18—Containers for fluids or gases; Supports therefor mainly of concrete, e.g. reinforced concrete, or other stone-like material
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K21/00—Details of pulse counters or frequency dividers
- H03K21/38—Starting, stopping or resetting the counter
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- General Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Channel Selection Circuits, Automatic Tuning Circuits (AREA)
- Superheterodyne Receivers (AREA)
- Circuits Of Receivers In General (AREA)
- Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
- Noise Elimination (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US05/781,878 US4127820A (en) | 1977-03-28 | 1977-03-28 | Electrical circuit for multiplexing and dividing different bands or frequencies |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| DE2812991A1 DE2812991A1 (de) | 1978-10-05 |
| DE2812991B2 DE2812991B2 (de) | 1981-02-19 |
| DE2812991C3 true DE2812991C3 (de) | 1981-11-12 |
Family
ID=25124249
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE2812991A Expired DE2812991C3 (de) | 1977-03-28 | 1978-03-23 | Frequenzteilerschaltung für einen Fernsehtuner |
Country Status (14)
| Country | Link |
|---|---|
| US (1) | US4127820A (https=) |
| JP (1) | JPS53120316A (https=) |
| AT (1) | AT385615B (https=) |
| AU (2) | AU3428178A (https=) |
| CA (1) | CA1098974A (https=) |
| DE (1) | DE2812991C3 (https=) |
| FI (1) | FI67460C (https=) |
| FR (1) | FR2386216A1 (https=) |
| GB (1) | GB1595374A (https=) |
| HK (1) | HK56883A (https=) |
| IT (1) | IT1093718B (https=) |
| MY (1) | MY8500706A (https=) |
| SE (1) | SE418440B (https=) |
| SG (1) | SG38483G (https=) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4317228A (en) * | 1979-10-15 | 1982-02-23 | Zenith Radio Corporation | Television receiver having multiplexed phase lock loop tuning system |
| US4379271A (en) * | 1980-08-25 | 1983-04-05 | Rca Corporation | Input selection arrangement for applying different local oscillator signals to a prescaler of a phase-lock loop tuning system |
| US4368540A (en) * | 1981-06-05 | 1983-01-11 | Rca Corporation | Phase locked loop tuning system including a prescaler conditioned to oscillate at an out-of-band frequency |
| JPS59122161A (ja) * | 1982-12-28 | 1984-07-14 | Toshiba Corp | ブロ−ドバンドネツトワ−クシステム |
| JPS60149227A (ja) * | 1984-01-13 | 1985-08-06 | Sony Corp | Ｓｈｆ受信機 |
| US5115317A (en) * | 1989-12-22 | 1992-05-19 | Alps Electric Co., Ltd. | Tuning apparatus for a television receiver including selectively activated amplifier and local oscillator circuits |
| US6714057B2 (en) * | 2001-08-28 | 2004-03-30 | Xilinx, Inc. | Multi-purpose digital frequency synthesizer circuit for a programmable logic device |
| US6445228B1 (en) * | 2001-08-28 | 2002-09-03 | Xilinx, Inc. | Programmable even-number clock divider circuit with duty cycle correction and optional phase shift |
| US7135924B2 (en) * | 2005-01-28 | 2006-11-14 | Semiconductor Components Industries, L.L.C. | Cross-talk reduction circuit and method therefor |
| JP2007300300A (ja) * | 2006-04-28 | 2007-11-15 | Alps Electric Co Ltd | テレビジョンチューナ用集積回路及びテレビジョンチューナ |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1263834C2 (de) * | 1965-12-01 | 1973-08-30 | Euratom | Digitales Flipflopschaltwerk mit Setzeingaengen, wobei ueber letztere das Zaehlerschaltwerk oder ein bestimmter Teil des Zaehlers in einen bestimmten Schaltzustand eingestellt werden kann |
| US3752934A (en) * | 1969-12-19 | 1973-08-14 | N Shoichi | Stereo demodulating circuit triggered by a minimum input signal level |
| US3707603A (en) * | 1969-12-29 | 1972-12-26 | Rca Corp | Fm stereophonic receiver detection apparatus and disabling means |
| JPS50135912A (https=) * | 1974-03-30 | 1975-10-28 | ||
| US3883807A (en) * | 1974-05-30 | 1975-05-13 | Motorola Inc | Tuning control system |
| US3942122A (en) * | 1974-10-15 | 1976-03-02 | Quasar Electronics Corporation | Multiband tuner control system |
| JPS5533747Y2 (https=) * | 1975-04-14 | 1980-08-11 | ||
| US3997796A (en) * | 1975-05-14 | 1976-12-14 | Ncr Corporation | High speed divide-by-two circuit |
| CA1076212A (en) * | 1975-05-30 | 1980-04-22 | Sanyo Electric Co. | Multiple-band digital frequency synthesizer receiver |
| US4024476A (en) * | 1976-02-02 | 1977-05-17 | Rca Corporation | Programmable frequency divider for a television receiver frequency synthesizer |
| US4019118A (en) * | 1976-03-29 | 1977-04-19 | Rca Corporation | Third harmonic signal generator |
-
1977
- 1977-03-28 US US05/781,878 patent/US4127820A/en not_active Expired - Lifetime
-
1978
- 1978-03-20 AU AU34281/78A patent/AU3428178A/en active Granted
- 1978-03-20 AU AU34281/78A patent/AU513878B2/en not_active Expired
- 1978-03-20 CA CA299,462A patent/CA1098974A/en not_active Expired
- 1978-03-21 FI FI780886A patent/FI67460C/fi not_active IP Right Cessation
- 1978-03-21 SE SE7803249A patent/SE418440B/sv not_active IP Right Cessation
- 1978-03-23 DE DE2812991A patent/DE2812991C3/de not_active Expired
- 1978-03-23 GB GB11625/78A patent/GB1595374A/en not_active Expired
- 1978-03-24 IT IT21634/78A patent/IT1093718B/it active
- 1978-03-27 JP JP3594578A patent/JPS53120316A/ja active Granted
- 1978-03-28 AT AT0218078A patent/AT385615B/de not_active IP Right Cessation
- 1978-03-28 FR FR7808964A patent/FR2386216A1/fr active Granted
-
1983
- 1983-06-30 SG SG384/83A patent/SG38483G/en unknown
- 1983-11-17 HK HK568/83A patent/HK56883A/xx unknown
-
1985
- 1985-12-30 MY MY706/85A patent/MY8500706A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| FR2386216B1 (https=) | 1980-07-04 |
| SE7803249L (sv) | 1978-09-29 |
| JPS6141442B2 (https=) | 1986-09-16 |
| GB1595374A (en) | 1981-08-12 |
| ATA218078A (de) | 1987-09-15 |
| DE2812991B2 (de) | 1981-02-19 |
| FI67460B (fi) | 1984-11-30 |
| IT7821634A0 (it) | 1978-03-24 |
| FR2386216A1 (fr) | 1978-10-27 |
| US4127820A (en) | 1978-11-28 |
| AT385615B (de) | 1988-04-25 |
| AU3458178A (en) | 1979-10-04 |
| IT1093718B (it) | 1985-07-26 |
| SE418440B (sv) | 1981-05-25 |
| MY8500706A (en) | 1985-12-31 |
| DE2812991A1 (de) | 1978-10-05 |
| FI780886A7 (fi) | 1978-09-29 |
| HK56883A (en) | 1983-11-25 |
| AU3428178A (en) | 1979-09-27 |
| AU513878B2 (en) | 1981-01-08 |
| JPS53120316A (en) | 1978-10-20 |
| SG38483G (en) | 1984-07-20 |
| CA1098974A (en) | 1981-04-07 |
| FI67460C (fi) | 1985-03-11 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OAP | Request for examination filed | ||
| OD | Request for examination | ||
| C3 | Grant after two publication steps (3rd publication) | ||
| 8327 | Change in the person/name/address of the patent owner |
Owner name: RCA LICENSING CORP., PRINCETON, N.J., US |
|
| 8339 | Ceased/non-payment of the annual fee |