KR890014562U - VTR tape copy prevention circuit - Google Patents
VTR tape copy prevention circuitInfo
- Publication number
- KR890014562U KR890014562U KR2019870022545U KR870022545U KR890014562U KR 890014562 U KR890014562 U KR 890014562U KR 2019870022545 U KR2019870022545 U KR 2019870022545U KR 870022545 U KR870022545 U KR 870022545U KR 890014562 U KR890014562 U KR 890014562U
- Authority
- KR
- South Korea
- Prior art keywords
- prevention circuit
- copy prevention
- vtr tape
- tape copy
- vtr
- Prior art date
Links
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR2019870022545U KR910000679Y1 (en) | 1987-12-21 | 1987-12-21 | Tape copy proof circuit for vtr |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR2019870022545U KR910000679Y1 (en) | 1987-12-21 | 1987-12-21 | Tape copy proof circuit for vtr |
Publications (2)
Publication Number | Publication Date |
---|---|
KR890014562U true KR890014562U (en) | 1989-08-10 |
KR910000679Y1 KR910000679Y1 (en) | 1991-02-08 |
Family
ID=19270528
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR2019870022545U KR910000679Y1 (en) | 1987-12-21 | 1987-12-21 | Tape copy proof circuit for vtr |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR910000679Y1 (en) |
-
1987
- 1987-12-21 KR KR2019870022545U patent/KR910000679Y1/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
KR910000679Y1 (en) | 1991-02-08 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
A201 | Request for examination | ||
E902 | Notification of reason for refusal | ||
E701 | Decision to grant or registration of patent right | ||
REGI | Registration of establishment | ||
FPAY | Annual fee payment |
Payment date: 20020130 Year of fee payment: 12 |
|
EXPY | Expiration of term |