JPS6425633A - Pcm audio scramble device - Google Patents

Pcm audio scramble device

Info

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
Application number
JP18252587A
Other languages
Japanese (ja)
Inventor
Shunichi Nezu
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP18252587A priority Critical patent/JPS6425633A/en
Publication of JPS6425633A publication Critical patent/JPS6425633A/en
Pending legal-status Critical Current

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.
JP18252587A 1987-07-22 1987-07-22 Pcm audio scramble device Pending JPS6425633A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (1)

* Cited by examiner, † Cited by third party
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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