KR940004829B1 - 테이프 잔량 표시방법 및 장치 - Google Patents
테이프 잔량 표시방법 및 장치 Download PDFInfo
- Publication number
- KR940004829B1 KR940004829B1 KR1019880011932A KR880011932A KR940004829B1 KR 940004829 B1 KR940004829 B1 KR 940004829B1 KR 1019880011932 A KR1019880011932 A KR 1019880011932A KR 880011932 A KR880011932 A KR 880011932A KR 940004829 B1 KR940004829 B1 KR 940004829B1
- Authority
- KR
- South Korea
- Prior art keywords
- tape
- display
- control signal
- signal
- reel
- Prior art date
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Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
- G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
Landscapes
- Indexing, Searching, Synchronizing, And The Amount Of Synchronization Travel Of Record Carriers (AREA)
Abstract
Description
Claims (3)
- 테이프의 잔량 표시를 위한 스위치가 온되면 테이프의 종류를 판별하여 그에 대한 테이프 잔량 설정값을 읽는 단계와, 소정시간동안의 공급릴펄스수와 권취릴펄스수의 차를 계산하여 상기 테이프 잔량 설정값중 어느값에 해당되는지 판단하는 단계와, 상기 판단된 테이프 잔량 설정값을 대표하는 대표값에 대한 2진데이타를 출력하여 테이프 잔량을 점등표시하는 단계로 이루어지는 것을 특징으로 하는 테이프 잔량 표시방법.
- 공급릴과 권취릴의 회전주기를 각기 감지하는 릴회전 감지수단과, 이 릴회전 감지수단에서 출력되어 데이타로 변환된 릴펄스값을 입력받고 테이프의 종류에 따른 테이프 잔량을 계산하여 이진테이타의 표시제어신호로 출력하는 마이컴으로 구성된 테이프 잔량 표시장치에 있어서, 상기 마이컴으로부터 이진 데이타로 출력되는 표시 제어신호를 논리조합하여 순차 누적표시 구동신호로 변환출력시키는 제어신호 변환수단과, 상기 제어신호 변환수단으로 출력되는 순차 누적 표시 구동신호에 따라 순차 누적 표시되는 표시수단으로 구성된 것을 특징으로 하는 테이프 잔량 표시장치.
- 제 2 항에 있어서, 상기 제어신호 변환수단은 마이컴으로부터 출력되는 표시제어신호(x, y, z)중 표시제어신호(x)를 4차 누적표시구동신호로 직접 출력하고, 상기 표시제어신호(x, y, z)를 논리합하여 1차 누적표시구동신호로 출력하는 오아게이트(OR1)와, 상기 표시제어신호(x, y)를 논리합하여 2차 누적표시구동신호로 출력하는 오아게이트(OR2)와, 상기 표시제어신호(y, z)를 논리곱하는 앤드게이트(AND1)의 출력신호 및 상기 표시제어신호(x)를 논리합하여 3차 누적표시구동신호로 출력하는 오아게이트(OR3)와, 상기 표시제어신호(y, z)를 논리합하는 오아게이트(OR4)의 출력신호 및 상기 표시제어신호(x)를 논리곱하여 5차 누적표시구동신호로 출력하는 앤드게이트(AND2)와, 상기 표시제어신호(x, y)를 논리곱하여 6차 누적표시구동신호로 출력하는 앤드게이트(AND3)와, 상기 표시제어신호(x, y, z)를 논리곱하여 7차 누적표시구동신호로 출력하는 앤드게이트(AND4)로 구성하여 된 것을 특징으로 하는 테이프 잔량 표시장치.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019880011932A KR940004829B1 (ko) | 1988-09-15 | 1988-09-15 | 테이프 잔량 표시방법 및 장치 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019880011932A KR940004829B1 (ko) | 1988-09-15 | 1988-09-15 | 테이프 잔량 표시방법 및 장치 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR900005434A KR900005434A (ko) | 1990-04-14 |
KR940004829B1 true KR940004829B1 (ko) | 1994-06-01 |
Family
ID=19277769
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019880011932A KR940004829B1 (ko) | 1988-09-15 | 1988-09-15 | 테이프 잔량 표시방법 및 장치 |
Country Status (1)
Country | Link |
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KR (1) | KR940004829B1 (ko) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100744578B1 (ko) * | 2006-03-15 | 2007-08-01 | 강태천 | 카세트테이프플레이어의 카세트테이프 잔량 표시장치 및방법 |
-
1988
- 1988-09-15 KR KR1019880011932A patent/KR940004829B1/ko not_active IP Right Cessation
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Publication number | Publication date |
---|---|
KR900005434A (ko) | 1990-04-14 |
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