JPS6415334U - - Google Patents
Info
- Publication number
- JPS6415334U JPS6415334U JP11002287U JP11002287U JPS6415334U JP S6415334 U JPS6415334 U JP S6415334U JP 11002287 U JP11002287 U JP 11002287U JP 11002287 U JP11002287 U JP 11002287U JP S6415334 U JPS6415334 U JP S6415334U
- Authority
- JP
- Japan
- Prior art keywords
- tape
- light
- end detector
- emitting element
- detector
- 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.)
- Granted
Links
- 238000001514 detection method Methods 0.000 claims description 3
- 230000010355 oscillation Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 2
Description
図は本考案の一実施例を示し、第１図はデジタ
ルオーデイオテープレコーダの概略を示す平面図
、第２図はカセツトハーフが装填されている場合
の検出状態を示す平面図、第３図はカセツトハー
フが装填されていない場合の検出状態を示す平面
図、第４図は検出装置全体のブロツク図、第５図
は同上における比較回路の回路図、第６図はタイ
ミングチヤート図である。
１…カセツトハーフ、４…テープ始端検出器、
５…テープ終端検出器、４ａ，５ａ…発光素子、
４ｂ，５ｂ…受光素子、７…発振回路、１２…比
較回路。
The figures show one embodiment of the present invention; FIG. 1 is a plan view showing the outline of a digital audio tape recorder; FIG. 2 is a plan view showing the detection state when a cassette half is loaded; FIG. FIG. 4 is a block diagram of the entire detection device, FIG. 5 is a circuit diagram of the comparison circuit shown in the above, and FIG. 6 is a timing chart. 1...Cassette half, 4...Tape start end detector,
5...Tape end detector, 4a, 5a...Light emitting element,
4b, 5b... Light receiving element, 7... Oscillation circuit, 12... Comparison circuit.
Claims (1)
るテープの始端を検出するテープ始端検出器と、
テープの終端を検出するテープ終端検出器とを有
するデジタルオーデイオテープレコーダにおいて
、前記テープ始端検出器における発光素子とテー
プ終端検出器における発光素子とを異なる条件で
点滅させる発振回路と、前記テープ始端検出器に
おける発光素子よりの変調光をテープ終端検出器
における受光素子が検出し、あるいは前記テープ
終端検出器における発光素子よりの変調光をテー
プ始端検出器における受光素子が検出した時にカ
セツトハーフ無しの信号を出力する比較回路とを
備えたことを特徴とするデジタルオーデイオテー
プレコーダにおけるカセツトハーフ検出装置。 a tape start end detector for detecting the start end of a tape in a cassette half for digital audio;
A digital audio tape recorder having a tape end detector for detecting the end of a tape, comprising: an oscillation circuit that causes a light emitting element in the tape start end detector and a light emitting element in the tape end detector to blink under different conditions; and a tape start end detector. When the light-receiving element in the tape end detector detects the modulated light from the light-emitting element in the tape end detector, or the light-receiving element in the tape start-edge detector detects the modulated light from the light-emitting element in the tape end detector, a signal indicating that there is no cassette half is detected. A cassette half detection device for a digital audio tape recorder, characterized in that it is equipped with a comparison circuit that outputs .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11002287U JP2542797Y2 (en) | 1987-07-20 | 1987-07-20 | Cassette half detector for digital audio tape recorder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11002287U JP2542797Y2 (en) | 1987-07-20 | 1987-07-20 | Cassette half detector for digital audio tape recorder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6415334U true JPS6415334U (en) | 1989-01-26 |
| JP2542797Y2 JP2542797Y2 (en) | 1997-07-30 |
Family
ID=31346799
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11002287U Expired - Lifetime JP2542797Y2 (en) | 1987-07-20 | 1987-07-20 | Cassette half detector for digital audio tape recorder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2542797Y2 (en) |
-
1987
- 1987-07-20 JP JP11002287U patent/JP2542797Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JP2542797Y2 (en) | 1997-07-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS6415334U (en) | ||
| JPS6415335U (en) | ||
| JPH0390007U (en) | ||
| JPH01146322U (en) | ||
| JPS6023984U (en) | cassette tape | |
| JPS6437958U (en) | ||
| JPH0352809U (en) | ||
| JPS61163340U (en) | ||
| JPS62129118U (en) | ||
| JPS63168629U (en) | ||
| JPS62173045U (en) | ||
| JPS60143306U (en) | Light reflective distance sensor | |
| JPS61102807U (en) | ||
| JPS62190931U (en) | ||
| JPH0250833U (en) | ||
| JPS6251587U (en) | ||
| JPS6441733U (en) | ||
| JPS6085746U (en) | Tape recorder reel stand rotation detection device | |
| JPH0240549U (en) | ||
| JPS6322626U (en) | ||
| JPS6049780U (en) | fishing alarm | |
| JPS6054930U (en) | Medical float liquid level detection device | |
| JPH0250835U (en) | ||
| JPS6267396U (en) | ||
| JPH03124335U (en) |