JPS5928297B2 - テレビジヨン同調装置 - Google Patents
テレビジヨン同調装置Info
- Publication number
- JPS5928297B2 JPS5928297B2 JP52059272A JP5927277A JPS5928297B2 JP S5928297 B2 JPS5928297 B2 JP S5928297B2 JP 52059272 A JP52059272 A JP 52059272A JP 5927277 A JP5927277 A JP 5927277A JP S5928297 B2 JPS5928297 B2 JP S5928297B2
- Authority
- JP
- Japan
- Prior art keywords
- frequency
- signal
- local oscillator
- channel
- count
- 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
- 230000010355 oscillation Effects 0.000 claims description 39
- 238000001514 detection method Methods 0.000 claims description 28
- 230000004044 response Effects 0.000 claims description 19
- 230000008878 coupling Effects 0.000 claims description 6
- 238000010168 coupling process Methods 0.000 claims description 6
- 238000005859 coupling reaction Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 description 17
- 230000001360 synchronised effect Effects 0.000 description 17
- 230000008569 process Effects 0.000 description 14
- 230000009977 dual effect Effects 0.000 description 13
- 239000003990 capacitor Substances 0.000 description 12
- 239000000969 carrier Substances 0.000 description 12
- 230000008859 change Effects 0.000 description 11
- 230000005540 biological transmission Effects 0.000 description 7
- 230000007423 decrease Effects 0.000 description 7
- 230000006870 function Effects 0.000 description 7
- 230000001960 triggered effect Effects 0.000 description 7
- 239000000523 sample Substances 0.000 description 6
- 238000012546 transfer Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 238000012545 processing Methods 0.000 description 4
- 230000007704 transition Effects 0.000 description 4
- 230000014509 gene expression Effects 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000001629 suppression Effects 0.000 description 2
- 241001397173 Kali <angiosperm> Species 0.000 description 1
- 241000269908 Platichthys flesus Species 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 230000005236 sound signal Effects 0.000 description 1
- 238000010408 sweeping Methods 0.000 description 1
- 230000002194 synthesizing effect 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
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
- H03J7/00—Automatic frequency control; Automatic scanning over a band of frequencies
- H03J7/02—Automatic frequency control
- H03J7/04—Automatic frequency control where the frequency control is accomplished by varying the electrical characteristics of a non-mechanically adjustable element or where the nature of the frequency controlling element is not significant
- H03J7/06—Automatic frequency control where the frequency control is accomplished by varying the electrical characteristics of a non-mechanically adjustable element or where the nature of the frequency controlling element is not significant using counters or frequency dividers
- H03J7/065—Automatic frequency control where the frequency control is accomplished by varying the electrical characteristics of a non-mechanically adjustable element or where the nature of the frequency controlling element is not significant using counters or frequency dividers the counter or frequency divider being used in a phase locked loop
Landscapes
- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Superheterodyne Receivers (AREA)
- Channel Selection Circuits, Automatic Tuning Circuits (AREA)
- Television Receiver Circuits (AREA)
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US000000688521 | 1976-05-21 | ||
| US05/688,521 US4031549A (en) | 1976-05-21 | 1976-05-21 | Television tuning system with provisions for receiving RF carrier at nonstandard frequency |
| US000000688588 | 1976-05-21 | ||
| US05/688,588 US4109283A (en) | 1976-05-21 | 1976-05-21 | Frequency counter for a television tuning system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5310920A JPS5310920A (en) | 1978-01-31 |
| JPS5928297B2 true JPS5928297B2 (ja) | 1984-07-12 |
Family
ID=27104242
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP52059272A Expired JPS5928297B2 (ja) | 1976-05-21 | 1977-05-21 | テレビジヨン同調装置 |
Country Status (10)
| Country | Link |
|---|---|
| JP (1) | JPS5928297B2 (enrdf_load_stackoverflow) |
| AT (1) | AT381819B (enrdf_load_stackoverflow) |
| AU (1) | AU514310B2 (enrdf_load_stackoverflow) |
| DE (1) | DE2722659C2 (enrdf_load_stackoverflow) |
| FI (1) | FI65516C (enrdf_load_stackoverflow) |
| FR (1) | FR2361789A1 (enrdf_load_stackoverflow) |
| GB (1) | GB1581933A (enrdf_load_stackoverflow) |
| HK (1) | HK33386A (enrdf_load_stackoverflow) |
| IT (1) | IT1111661B (enrdf_load_stackoverflow) |
| SE (1) | SE415720B (enrdf_load_stackoverflow) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4917254A (enrdf_load_stackoverflow) * | 1972-06-05 | 1974-02-15 | ||
| US3949158A (en) * | 1974-12-31 | 1976-04-06 | Quasar Electronics Corporation | Wide band aft circuit for television receiver |
| IT1073074B (it) * | 1975-11-14 | 1985-04-13 | Rca Corp | Sintetizzatore di frequenze televisive,per portanti di frequenza non standardizzata |
| US4078212A (en) * | 1976-02-27 | 1978-03-07 | Rca Corporation | Dual mode frequency synthesizer for a television tuning apparatus |
-
1977
- 1977-05-02 AU AU24761/77A patent/AU514310B2/en not_active Expired
- 1977-05-11 GB GB19834/77A patent/GB1581933A/en not_active Expired
- 1977-05-13 SE SE7705644A patent/SE415720B/xx not_active IP Right Cessation
- 1977-05-13 FI FI771529A patent/FI65516C/fi not_active IP Right Cessation
- 1977-05-18 IT IT23730/77A patent/IT1111661B/it active
- 1977-05-18 DE DE2722659A patent/DE2722659C2/de not_active Expired
- 1977-05-20 AT AT0364577A patent/AT381819B/de not_active IP Right Cessation
- 1977-05-20 FR FR7715582A patent/FR2361789A1/fr active Granted
- 1977-05-21 JP JP52059272A patent/JPS5928297B2/ja not_active Expired
-
1986
- 1986-05-15 HK HK333/86A patent/HK33386A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DE2722659C2 (de) | 1985-05-30 |
| FR2361789A1 (fr) | 1978-03-10 |
| DE2722659A1 (de) | 1977-11-24 |
| AU514310B2 (en) | 1981-02-05 |
| AT381819B (de) | 1986-12-10 |
| JPS5310920A (en) | 1978-01-31 |
| IT1111661B (it) | 1986-01-13 |
| FI771529A7 (enrdf_load_stackoverflow) | 1977-11-22 |
| AU2476177A (en) | 1978-11-09 |
| GB1581933A (en) | 1980-12-31 |
| SE7705644L (sv) | 1977-11-22 |
| HK33386A (en) | 1986-05-23 |
| SE415720B (sv) | 1980-10-20 |
| ATA364577A (de) | 1986-04-15 |
| FI65516C (fi) | 1984-05-10 |
| FI65516B (fi) | 1984-01-31 |
| FR2361789B1 (enrdf_load_stackoverflow) | 1982-11-19 |
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