JPS6425633A - Pcm audio scramble device - Google Patents
Pcm audio scramble deviceInfo
- Publication number
- JPS6425633A JPS6425633A JP18252587A JP18252587A JPS6425633A JP S6425633 A JPS6425633 A JP S6425633A JP 18252587 A JP18252587 A JP 18252587A JP 18252587 A JP18252587 A JP 18252587A JP S6425633 A JPS6425633 A JP S6425633A
- Authority
- JP
- Japan
- Prior art keywords
- data
- pcm audio
- sample data
- correlation
- pcm
- 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
Abstract
PURPOSE:To realize the scramble of PCM audio by storing a PCM audio sample data while dividing into blocks by a prescribed data number and rearranging the PCM audio sample data in the time axis so as to reduce the correlation with original audio information. CONSTITUTION:An analog audio signal is converted into a digital PCM audio sample data A by an AD converter 3. The data A is collected by the data number to be formed into one block and stored in a storage means 4. A rearrangement means 5 applies control the data A from the means 4 in the order in response to the pass word information given externally. Thus, the sampling data changed with the order is sent. Then the correlation with the original audio information is decreased and the scrambled PCM audio is realized.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18252587A JPS6425633A (en) | 1987-07-22 | 1987-07-22 | Pcm audio scramble device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18252587A JPS6425633A (en) | 1987-07-22 | 1987-07-22 | Pcm audio scramble device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6425633A true JPS6425633A (en) | 1989-01-27 |
Family
ID=16119829
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP18252587A Pending JPS6425633A (en) | 1987-07-22 | 1987-07-22 | Pcm audio scramble device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6425633A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010176691A (en) * | 1998-08-20 | 2010-08-12 | Akikaze Technologies Llc | Method and device for securing information stream |
-
1987
- 1987-07-22 JP JP18252587A patent/JPS6425633A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010176691A (en) * | 1998-08-20 | 2010-08-12 | Akikaze Technologies Llc | Method and device for securing information stream |
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