JPS556907A - Nonsynchronous 4-phase modulation system - Google Patents
Nonsynchronous 4-phase modulation systemInfo
- Publication number
- JPS556907A JPS556907A JP7860278A JP7860278A JPS556907A JP S556907 A JPS556907 A JP S556907A JP 7860278 A JP7860278 A JP 7860278A JP 7860278 A JP7860278 A JP 7860278A JP S556907 A JPS556907 A JP S556907A
- Authority
- JP
- Japan
- Prior art keywords
- circuits
- phase modulation
- frame pulse
- nonsynchronous
- pulse
- 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 a digital radio communication which features the excellent characteristics and never receives application of the queuing jitter since no stuffing is required.
CONSTITUTION: At transmission side T, the identifying frame pulse is inserted to the pulse signal of the nonsynchronous double series through frame pulse generators 301 and 401 and then undergoes the binary sum conversion via binary sum conversion circuits 7 and 8 to be transmitted in the form of the 4-phase phase modulation output via 4-phase phase modulation circuit 11. While at reception side R, the pulse signal undergoes the binary differential conversion after demodulation and is then supplied to switch circuits 35 and 36 which are controlled by frame synchronous circuits 43 and 46. With the output of circuits 35 and 36, the identifying frame pulse inserted at the transmission side is deleted through frame pulse isolation circuits 41 and 42.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7860278A JPS556907A (en) | 1978-06-30 | 1978-06-30 | Nonsynchronous 4-phase modulation system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7860278A JPS556907A (en) | 1978-06-30 | 1978-06-30 | Nonsynchronous 4-phase modulation system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS556907A true JPS556907A (en) | 1980-01-18 |
Family
ID=13666438
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7860278A Pending JPS556907A (en) | 1978-06-30 | 1978-06-30 | Nonsynchronous 4-phase modulation system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS556907A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4604042A (en) * | 1983-06-08 | 1986-08-05 | Hitachi Metals, Inc. | Apparatus for producing anisotropic magnets |
US4729789A (en) * | 1986-12-26 | 1988-03-08 | Toyo Kohan Co., Ltd. | Process of manufacturing an extruder screw for injection molding machines or extrusion machines and product thereof |
-
1978
- 1978-06-30 JP JP7860278A patent/JPS556907A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4604042A (en) * | 1983-06-08 | 1986-08-05 | Hitachi Metals, Inc. | Apparatus for producing anisotropic magnets |
US4729789A (en) * | 1986-12-26 | 1988-03-08 | Toyo Kohan Co., Ltd. | Process of manufacturing an extruder screw for injection molding machines or extrusion machines and product thereof |
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