JPH0444734U - - Google Patents
Info
- Publication number
- JPH0444734U JPH0444734U JP8780290U JP8780290U JPH0444734U JP H0444734 U JPH0444734 U JP H0444734U JP 8780290 U JP8780290 U JP 8780290U JP 8780290 U JP8780290 U JP 8780290U JP H0444734 U JPH0444734 U JP H0444734U
- Authority
- JP
- Japan
- Prior art keywords
- recorded
- frequency
- turned
- rom
- ram
- 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
- 238000001514 detection method Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Channel Selection Circuits, Automatic Tuning Circuits (AREA)
- Circuits Of Receivers In General (AREA)
Description
第１図は本考案によるテレビ受信装置のブロツ
ク図、第２図は動作を説明するフロー図である。
１０……バツテリー電源（バツクアツプ電源）
、２０……マイクロコンピユータ、２１……制御
部、２３……ＰＬＬ回路、２５……ＲＡＭ、２６
……ＲＯＭ、２７……停電検出回路。
FIG. 1 is a block diagram of a television receiving apparatus according to the present invention, and FIG. 2 is a flow diagram illustrating its operation. 10...Battery power supply (backup power supply)
, 20...Microcomputer, 21...Control unit, 23...PLL circuit, 25...RAM, 26
...ROM, 27...Power failure detection circuit.
Claims (1)
ＯＭと、プリセツトチヤネルに任意に設定される
周波数が記録されるＲＡＭと、バツクアツプ電源
が切られたか否かを検出する停電検出回路と、電
源投入時に停電検出回路によつてバツクアツプ電
源が切られていたことが検出されると、ＲＯＭに
記録されている周波数をＲＡＭに書き込む制御手
段と、を有することを特徴とするプリセツトチヤ
ネル式ＰＬＬ受信装置。 R on which the frequency of a predetermined broadcasting station is recorded
OM, a RAM in which the frequency arbitrarily set to the preset channel is recorded, a power failure detection circuit that detects whether the backup power supply is turned off, and a power failure detection circuit that detects whether the backup power supply is turned off when the power is turned on. 1. A preset channel type PLL receiving device, comprising: control means for writing a frequency recorded in a ROM into a RAM when it is detected that the frequency has been recorded in the ROM.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8780290U JPH0444734U (en) | 1990-08-21 | 1990-08-21 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8780290U JPH0444734U (en) | 1990-08-21 | 1990-08-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0444734U true JPH0444734U (en) | 1992-04-16 |
Family
ID=31820487
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8780290U Pending JPH0444734U (en) | 1990-08-21 | 1990-08-21 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0444734U (en) |
-
1990
- 1990-08-21 JP JP8780290U patent/JPH0444734U/ja active Pending
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