JPS4947061A - - Google Patents
Info
- Publication number
- JPS4947061A JPS4947061A JP48089933A JP8993373A JPS4947061A JP S4947061 A JPS4947061 A JP S4947061A JP 48089933 A JP48089933 A JP 48089933A JP 8993373 A JP8993373 A JP 8993373A JP S4947061 A JPS4947061 A JP S4947061A
- Authority
- JP
- Japan
- 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
- H04L27/10—Frequency-modulated carrier systems, i.e. using frequency-shift keying
- H04L27/12—Modulator circuits; Transmitter circuits
- H04L27/122—Modulator circuits; Transmitter circuits using digital generation of carrier signals
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US28062072A | 1972-08-14 | 1972-08-14 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS4947061A true JPS4947061A (en]) | 1974-05-07 |
| JPS5321987B2 JPS5321987B2 (en]) | 1978-07-06 |
Family
ID=23073879
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8993373A Expired JPS5321987B2 (en]) | 1972-08-14 | 1973-08-10 |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US3792360A (en]) |
| JP (1) | JPS5321987B2 (en]) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5638281B2 (en]) * | 1974-05-31 | 1981-09-05 | ||
| DE2939199A1 (de) * | 1979-09-27 | 1981-04-16 | Siemens AG, 1000 Berlin und 8000 München | Verfahren zur erzeugung unterschiedlicher tonfrequenzen, insbesondere von tonfrequenzen fuer ein mfv-signalisierungsverfahren |
| US4295098A (en) * | 1979-12-19 | 1981-10-13 | Rca Corporation | Digitally adjustable phase shifting circuit |
| US4301415A (en) * | 1980-01-28 | 1981-11-17 | Norlin Industries, Inc. | Programmable multiple phase AC power supply |
| US4328525A (en) * | 1980-06-27 | 1982-05-04 | International Business Machines Corporation | Pulsed sine wave oscillating circuit arrangement |
| JPS57153244U (en]) * | 1981-03-20 | 1982-09-25 | ||
| US4424492A (en) | 1982-02-08 | 1984-01-03 | Hewlett-Packard Company | Apparatus and means for high speed digital frequency shifting |
| FR2551279B1 (fr) * | 1983-08-24 | 1988-10-14 | Texas Instruments France | Generateur d'onde sinusoidale, dont la frequence est asservie a un signal binaire, notamment pour modem |
| US5084681A (en) * | 1990-08-03 | 1992-01-28 | Hewlett-Packard Company | Digital synthesizer with phase memory |
| US5332975A (en) * | 1992-12-01 | 1994-07-26 | Netmedia Inc. | Sine wave generator utilizing variable encoding for different frequency signals |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3464018A (en) * | 1966-08-26 | 1969-08-26 | Nasa | Digitally controlled frequency synthesizer |
| US3513412A (en) * | 1966-09-28 | 1970-05-19 | Us Navy | Minimum peak power signal synthesizer |
| US3544717A (en) * | 1967-10-18 | 1970-12-01 | Bell Telephone Labor Inc | Timing recovery circuit |
| US3665323A (en) * | 1971-05-10 | 1972-05-23 | Collins Radio Co | Proportional digital control for radio frequency synthesizers |
-
1972
- 1972-08-14 US US00280620A patent/US3792360A/en not_active Expired - Lifetime
-
1973
- 1973-08-10 JP JP8993373A patent/JPS5321987B2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5321987B2 (en]) | 1978-07-06 |
| US3792360A (en) | 1974-02-12 |