JPS5791058A - Digital modulator - Google Patents
Digital modulatorInfo
- Publication number
- JPS5791058A JPS5791058A JP16640880A JP16640880A JPS5791058A JP S5791058 A JPS5791058 A JP S5791058A JP 16640880 A JP16640880 A JP 16640880A JP 16640880 A JP16640880 A JP 16640880A JP S5791058 A JPS5791058 A JP S5791058A
- Authority
- JP
- Japan
- Prior art keywords
- information
- inputted
- phase
- synthesized
- memory
- 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.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
- H04L27/20—Modulator circuits; Transmitter circuits
- H04L27/2032—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner
- H04L27/2053—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner using more than one carrier, e.g. carriers with different phases
- H04L27/206—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner using more than one carrier, e.g. carriers with different phases using a pair of orthogonal carriers, e.g. quadrature carriers
- H04L27/2067—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner using more than one carrier, e.g. carriers with different phases using a pair of orthogonal carriers, e.g. quadrature carriers with more than two phase states
- H04L27/2071—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner using more than one carrier, e.g. carriers with different phases using a pair of orthogonal carriers, e.g. quadrature carriers with more than two phase states in which the data are represented by the carrier phase, e.g. systems with differential coding
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16640880A JPS5791058A (en) | 1980-11-26 | 1980-11-26 | Digital modulator |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16640880A JPS5791058A (en) | 1980-11-26 | 1980-11-26 | Digital modulator |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5791058A true JPS5791058A (en) | 1982-06-07 |
JPH0128553B2 JPH0128553B2 (de) | 1989-06-02 |
Family
ID=15830861
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16640880A Granted JPS5791058A (en) | 1980-11-26 | 1980-11-26 | Digital modulator |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5791058A (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6057732A (ja) * | 1983-09-08 | 1985-04-03 | Ricoh Co Ltd | 2線4線変換方式 |
JPH01105647A (ja) * | 1987-10-02 | 1989-04-24 | Yokogawa Hewlett Packard Ltd | 変調信号の供給装置及び予備変調フィルタ及び変調装置 |
-
1980
- 1980-11-26 JP JP16640880A patent/JPS5791058A/ja active Granted
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6057732A (ja) * | 1983-09-08 | 1985-04-03 | Ricoh Co Ltd | 2線4線変換方式 |
JPH01105647A (ja) * | 1987-10-02 | 1989-04-24 | Yokogawa Hewlett Packard Ltd | 変調信号の供給装置及び予備変調フィルタ及び変調装置 |
Also Published As
Publication number | Publication date |
---|---|
JPH0128553B2 (de) | 1989-06-02 |
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