JPS5260003A - Converter/demodulator of constant difference modulation system - Google Patents
Converter/demodulator of constant difference modulation systemInfo
- Publication number
- JPS5260003A JPS5260003A JP13563575A JP13563575A JPS5260003A JP S5260003 A JPS5260003 A JP S5260003A JP 13563575 A JP13563575 A JP 13563575A JP 13563575 A JP13563575 A JP 13563575A JP S5260003 A JPS5260003 A JP S5260003A
- Authority
- JP
- Japan
- Prior art keywords
- modulation system
- demodulator
- converter
- constant difference
- difference modulation
- 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: In a information transmission system, the circuit switching timing is controlled based on preset rules. Thus, a secret call can be performed through the constant difference modulation system.
COPYRIGHT: (C)1977,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13563575A JPS5260003A (en) | 1975-11-13 | 1975-11-13 | Converter/demodulator of constant difference modulation system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13563575A JPS5260003A (en) | 1975-11-13 | 1975-11-13 | Converter/demodulator of constant difference modulation system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5260003A true JPS5260003A (en) | 1977-05-18 |
Family
ID=15156406
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13563575A Pending JPS5260003A (en) | 1975-11-13 | 1975-11-13 | Converter/demodulator of constant difference modulation system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5260003A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS54161810A (en) * | 1978-06-13 | 1979-12-21 | Okamura Shiro | Encoding system |
JPS5510242A (en) * | 1978-07-06 | 1980-01-24 | Shiro Okamura | Coding communication system |
JPS61121615A (en) * | 1984-11-19 | 1986-06-09 | Matsushita Electric Ind Co Ltd | Muting device for decorder of dpcm coding |
-
1975
- 1975-11-13 JP JP13563575A patent/JPS5260003A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS54161810A (en) * | 1978-06-13 | 1979-12-21 | Okamura Shiro | Encoding system |
JPS5510242A (en) * | 1978-07-06 | 1980-01-24 | Shiro Okamura | Coding communication system |
JPS61121615A (en) * | 1984-11-19 | 1986-06-09 | Matsushita Electric Ind Co Ltd | Muting device for decorder of dpcm coding |
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