JPH0128553B2 - - Google Patents
Info
- Publication number
- JPH0128553B2 JPH0128553B2 JP16640880A JP16640880A JPH0128553B2 JP H0128553 B2 JPH0128553 B2 JP H0128553B2 JP 16640880 A JP16640880 A JP 16640880A JP 16640880 A JP16640880 A JP 16640880A JP H0128553 B2 JPH0128553 B2 JP H0128553B2
- Authority
- JP
- Japan
- Prior art keywords
- phase
- information
- orthogonal
- impulse response
- phase information
- 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.)
- Expired
Links
- 230000004044 response Effects 0.000 claims description 27
- 230000006870 function Effects 0.000 claims description 11
- 230000015654 memory Effects 0.000 claims description 11
- 239000002131 composite material Substances 0.000 claims description 4
- 230000001186 cumulative effect Effects 0.000 claims description 2
- 238000006243 chemical reaction Methods 0.000 claims 2
- 238000000034 method Methods 0.000 description 26
- 238000007493 shaping process Methods 0.000 description 7
- 230000005540 biological transmission Effects 0.000 description 4
- 238000001514 detection method Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 1
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 JPS5791058A (en) | 1982-06-07 |
JPH0128553B2 true 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) |
Families Citing this family (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 |
US4757519A (en) * | 1987-10-02 | 1988-07-12 | Hewlett-Packard | Digital premodulation filter |
-
1980
- 1980-11-26 JP JP16640880A patent/JPS5791058A/ja active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS5791058A (en) | 1982-06-07 |
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