JPS4874906A - - Google Patents
Info
- Publication number
- JPS4874906A JPS4874906A JP48004251A JP425173A JPS4874906A JP S4874906 A JPS4874906 A JP S4874906A JP 48004251 A JP48004251 A JP 48004251A JP 425173 A JP425173 A JP 425173A JP S4874906 A JPS4874906 A JP S4874906A
- 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.)
- Pending
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
- H04L27/14—Demodulator circuits; Receiver circuits
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/20—Arrangements for detecting or preventing errors in the information received using signal quality detector
- H04L1/206—Arrangements for detecting or preventing errors in the information received using signal quality detector for modulated signals
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Quality & Reliability (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Manipulation Of Pulses (AREA)
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US21242671A | 1971-12-27 | 1971-12-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS4874906A true JPS4874906A (ja) | 1973-10-09 |
Family
ID=22790954
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP48004251A Pending JPS4874906A (ja) | 1971-12-27 | 1972-12-27 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US3746993A (ja) |
| JP (1) | JPS4874906A (ja) |
| CA (1) | CA1020231A (ja) |
| DE (1) | DE2263394C2 (ja) |
| FR (1) | FR2165958B1 (ja) |
| GB (1) | GB1367585A (ja) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4039959A (en) * | 1975-07-31 | 1977-08-02 | Westinghouse Electric Corporation | Two-tone decoder having high noise immunity |
| US4096360A (en) * | 1975-09-27 | 1978-06-20 | Victor Company Of Japan, Ltd. | Multichannel record disc reproducing system |
| DE2658957A1 (de) * | 1976-03-03 | 1977-09-08 | Ibm | Detektorschaltung fuer den traeger bei digitaler datenuebertragung |
| DE2854833C2 (de) * | 1978-12-19 | 1980-09-04 | Siemens Ag, 1000 Berlin Und 8000 Muenchen | Schaltungsanordnung zum Korrigieren von Schrittverzerningen bei einer Übertragung von Daten |
| GB2146509B (en) * | 1983-09-10 | 1986-08-13 | Stc Plc | Data transmission system |
| EP0147008A3 (en) * | 1983-09-30 | 1986-07-16 | Texas Instruments Incorporated | Bilateral digital fsk communication system interface using digital technique |
| US4554508A (en) * | 1983-12-07 | 1985-11-19 | American Microsystems, Incorporated | Carrier detection circuit |
| NZ221479A (en) * | 1986-08-22 | 1990-09-26 | Transcom Australia Ltd | Modem with sync regeneration for hf radio |
| US5638375A (en) * | 1988-11-30 | 1997-06-10 | Motorola, Inc. | AGC isolation of information in TDMA systems |
| FR2748878B1 (fr) * | 1996-05-14 | 1998-06-26 | Alcatel Telspace | Systeme de detection de la presence d'une onde porteuse d'un signal numerique et recepteur comprenant un tel systeme |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3525945A (en) * | 1968-08-14 | 1970-08-25 | Communications Satellite Corp | System for reconstituting a carrier reference signal using a switchable phase lock loop |
| US3581220A (en) * | 1969-02-17 | 1971-05-25 | Allan J Bell | Frequency modulation signal demodulator |
| US3627949A (en) * | 1970-01-15 | 1971-12-14 | Western Telematic Inc | Digital data transmission system |
-
1971
- 1971-12-27 US US00212426A patent/US3746993A/en not_active Expired - Lifetime
-
1972
- 1972-12-06 CA CA158,193A patent/CA1020231A/en not_active Expired
- 1972-12-19 FR FR7245149A patent/FR2165958B1/fr not_active Expired
- 1972-12-19 GB GB5848472A patent/GB1367585A/en not_active Expired
- 1972-12-23 DE DE2263394A patent/DE2263394C2/de not_active Expired
- 1972-12-27 JP JP48004251A patent/JPS4874906A/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| FR2165958B1 (ja) | 1980-04-11 |
| GB1367585A (en) | 1974-09-18 |
| FR2165958A1 (ja) | 1973-08-10 |
| US3746993A (en) | 1973-07-17 |
| DE2263394A1 (de) | 1973-07-12 |
| CA1020231A (en) | 1977-11-01 |
| DE2263394C2 (de) | 1982-06-24 |