BE720452A - - Google Patents
Info
- Publication number
- BE720452A BE720452A BE720452DA BE720452A BE 720452 A BE720452 A BE 720452A BE 720452D A BE720452D A BE 720452DA BE 720452 A BE720452 A BE 720452A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/02—Amplitude-modulated carrier systems, e.g. using on-off keying; Single sideband or vestigial sideband modulation
- H04L27/06—Demodulator circuits; Receiver circuits
- H04L27/066—Carrier recovery circuits
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
- H03D1/00—Demodulation of amplitude-modulated oscillations
- H03D1/22—Homodyne or synchrodyne circuits
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Synchronisation In Digital Transmission Systems (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR6008733 | 1967-10-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE720452A true BE720452A (pm) | 1969-02-17 |
Family
ID=8970619
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE720452D BE720452A (pm) | 1967-10-06 | 1968-09-05 |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US3571717A (pm) |
| BE (1) | BE720452A (pm) |
| CH (1) | CH483155A (pm) |
| DE (1) | DE1800522B2 (pm) |
| GB (1) | GB1230190A (pm) |
| NL (1) | NL166593C (pm) |
| SE (1) | SE338071B (pm) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4100376A (en) * | 1977-01-03 | 1978-07-11 | Raytheon Company | Pilot tone demodulator |
| US4618996A (en) * | 1984-04-24 | 1986-10-21 | Avnet, Inc. | Dual pilot phase lock loop for radio frequency transmission |
| US4691375A (en) * | 1984-06-06 | 1987-09-01 | National Research Development Corporation | Data transmission using a transparent tone-in band system |
| USRE34036E (en) * | 1984-06-06 | 1992-08-18 | National Research Development Corporation | Data transmission using a transparent tone-in band system |
| DE3700457C1 (de) * | 1987-01-09 | 1988-06-23 | Ant Nachrichtentech | Verfahren und Anordnung zur Synchronisation eines Empfaengers bei digitalen UEbertragungssystemen |
| US6940933B1 (en) | 1999-06-23 | 2005-09-06 | Cingular Wireless Ii, Llc | Apparatus and method for synchronization in a multiple-carrier communications system by observing a phase-frequency relationship of a plurality of pilot signals |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3102164A (en) * | 1963-08-27 | Pulses on | ||
| NL50108C (pm) * | 1936-07-20 | |||
| US3182259A (en) * | 1961-01-06 | 1965-05-04 | Floyd P Holder | Submodulation systems for carrier recreation and doppler correction in single-sideband zero-carrier communications |
| US3202765A (en) * | 1961-08-23 | 1965-08-24 | Bell Telephone Labor Inc | Synchronization of frequency multiplex systems |
| US3196352A (en) * | 1962-12-18 | 1965-07-20 | Ibm | Multilevel vestigial sideband suppressed carrier data transmission system |
-
1968
- 1968-09-05 BE BE720452D patent/BE720452A/xx not_active IP Right Cessation
- 1968-09-26 GB GB1230190D patent/GB1230190A/en not_active Expired
- 1968-10-01 US US764253A patent/US3571717A/en not_active Expired - Lifetime
- 1968-10-02 DE DE19681800522 patent/DE1800522B2/de not_active Withdrawn
- 1968-10-04 SE SE13468/68A patent/SE338071B/xx unknown
- 1968-10-04 NL NL6814297.A patent/NL166593C/xx not_active IP Right Cessation
- 1968-10-04 CH CH1488668A patent/CH483155A/de not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| NL166593C (nl) | 1981-08-17 |
| CH483155A (de) | 1969-12-15 |
| GB1230190A (pm) | 1971-04-28 |
| NL6814297A (pm) | 1969-04-09 |
| US3571717A (en) | 1971-03-23 |
| NL166593B (nl) | 1981-03-16 |
| SE338071B (pm) | 1971-08-30 |
| DE1800522A1 (de) | 1969-06-19 |
| DE1800522B2 (de) | 1971-02-18 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| RE20 | Patent expired |
Owner name: INTERNATIONAL BUSINESS MACHINES CORP. Effective date: 19880905 |