FR2473824B1 - - Google Patents
Info
- Publication number
- FR2473824B1 FR2473824B1 FR8100415A FR8100415A FR2473824B1 FR 2473824 B1 FR2473824 B1 FR 2473824B1 FR 8100415 A FR8100415 A FR 8100415A FR 8100415 A FR8100415 A FR 8100415A FR 2473824 B1 FR2473824 B1 FR 2473824B1
- Authority
- FR
- France
- 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
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
- H04K1/00—Secret communication
- H04K1/003—Secret communication by varying carrier frequency at or within predetermined or random intervals
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Synchronisation In Digital Transmission Systems (AREA)
- Radar Systems Or Details Thereof (AREA)
- Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
- Mobile Radio Communication Systems (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US06/112,028 US4280222A (en) | 1980-01-14 | 1980-01-14 | Receiver and correlator switching method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2473824A1 FR2473824A1 (fr) | 1981-07-17 |
| FR2473824B1 true FR2473824B1 (US07909887-20110322-C00021.png) | 1984-10-19 |
Family
ID=22341740
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR8100415A Granted FR2473824A1 (fr) | 1980-01-14 | 1981-01-12 | Procede de commutation entre les recepteurs et les correlateurs d'un systeme de communication et appareil de reception-correlation pour la mise en oeuvre de ce procede |
Country Status (9)
Families Citing this family (25)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH656760A5 (de) * | 1981-11-11 | 1986-07-15 | Landis & Gyr Ag | Verfahren und anordnung zur sicherstellung der start-synchronisation eines aus bit-impulsfolgen bestehenden telegramms innerhalb eines empfaengers. |
| US4498173A (en) * | 1982-06-17 | 1985-02-05 | At&T Bell Laboratories | Technique for digital split-channel transmission using interpolative coders and decoders |
| GB8219020D0 (en) * | 1982-07-06 | 1995-11-22 | Secr Defence | Improvements in or relating to communications |
| GB2128453A (en) * | 1982-10-08 | 1984-04-26 | Philips Electronic Associated | System identification in communications systems |
| US4807248A (en) * | 1984-05-23 | 1989-02-21 | Rockwell International Corporation | Automatic resynchronization technique |
| US4597087A (en) * | 1984-10-19 | 1986-06-24 | Itt Corporation | Frequency hopping data communication system |
| US5271043A (en) * | 1986-10-07 | 1993-12-14 | Thomson-Csf | Device and method for the data transmission or storage optimizing the use of the pass-band |
| JPH07120968B2 (ja) * | 1989-02-07 | 1995-12-20 | クラリオン株式会社 | スペクトラム拡散通信装置 |
| US5048015A (en) * | 1990-06-14 | 1991-09-10 | At&T Bell Laboratories | Interference source identification |
| US5402413A (en) * | 1991-04-08 | 1995-03-28 | Omnipoint Corporation | Three-cell wireless communication system |
| US5887020A (en) * | 1991-05-13 | 1999-03-23 | Omnipoint Corporation | Multi-band, multi-mode spread-spectrum communication system |
| US5796772A (en) * | 1991-05-13 | 1998-08-18 | Omnipoint Corporation | Multi-band, multi-mode spread-spectrum communication system |
| US5815525A (en) * | 1991-05-13 | 1998-09-29 | Omnipoint Corporation | Multi-band, multi-mode spread-spectrum communication system |
| US5790587A (en) * | 1991-05-13 | 1998-08-04 | Omnipoint Corporation | Multi-band, multi-mode spread-spectrum communication system |
| US5694414A (en) * | 1991-05-13 | 1997-12-02 | Omnipoint Corporation | Multi-band, multi-mode spread-spectrum communication system |
| US5285469A (en) * | 1991-06-03 | 1994-02-08 | Omnipoint Data Corporation | Spread spectrum wireless telephone system |
| FR2688108B1 (fr) * | 1992-02-28 | 1994-12-23 | Thomson Csf | Procede de durcissement de transmissions, en particulier entre une station de commande et un transpondeur, et dispositif de mise en óoeuvre. |
| US5479448A (en) * | 1992-03-31 | 1995-12-26 | At&T Corp. | Method and apparatus for providing antenna diversity |
| US6088590A (en) * | 1993-11-01 | 2000-07-11 | Omnipoint Corporation | Method and system for mobile controlled handoff and link maintenance in spread spectrum communication |
| US6005856A (en) * | 1993-11-01 | 1999-12-21 | Omnipoint Corporation | Communication protocol for spread spectrum wireless communication system |
| US5784403A (en) * | 1995-02-03 | 1998-07-21 | Omnipoint Corporation | Spread spectrum correlation using saw device |
| US5710789A (en) * | 1996-07-22 | 1998-01-20 | Snodgrass; Timothy E. | Signal synchronization system for encoded signals |
| US6243372B1 (en) | 1996-11-14 | 2001-06-05 | Omnipoint Corporation | Methods and apparatus for synchronization in a wireless network |
| US6223317B1 (en) | 1998-02-28 | 2001-04-24 | Micron Technology, Inc. | Bit synchronizers and methods of synchronizing and calculating error |
| US6947469B2 (en) | 1999-05-07 | 2005-09-20 | Intel Corporation | Method and Apparatus for wireless spread spectrum communication with preamble processing period |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB235275A (en) * | 1924-03-06 | 1925-06-08 | William Henry Fulford | Improvements in or relating to receivers for electrical transmission particularly wireless transmission |
| NL277908A (US07909887-20110322-C00021.png) * | 1961-05-02 | |||
| US3253259A (en) * | 1961-09-19 | 1966-05-24 | Bell Telephone Labor Inc | Plural channel data transmission system having means for utilizing only the operative channels |
| US3737776A (en) * | 1971-06-09 | 1973-06-05 | J Fletcher | Two carrier communication system with single transmitter |
| US4037159A (en) * | 1974-11-01 | 1977-07-19 | Harris Corporation | Chirp communication system |
| US4185172A (en) * | 1976-12-17 | 1980-01-22 | Cselt - Centro Studi E Laboratori Telecomunicazioni S.P.A. | Method of and means for detecting digitized multi frequency-coded signals |
| US4177427A (en) * | 1978-04-03 | 1979-12-04 | General Dynamics Corporation | Phase-normalized parallel tuned receiver channel system |
| GB2042849B (en) * | 1979-02-20 | 1983-04-13 | Payview Ltd | Encoding of information |
-
1980
- 1980-01-14 US US06/112,028 patent/US4280222A/en not_active Expired - Lifetime
- 1980-12-05 IL IL61640A patent/IL61640A/xx unknown
- 1980-12-05 GB GB8039054A patent/GB2068688B/en not_active Expired
- 1980-12-11 CA CA000366589A patent/CA1145010A/en not_active Expired
- 1980-12-19 DE DE19803047942 patent/DE3047942A1/de active Granted
-
1981
- 1981-01-12 FR FR8100415A patent/FR2473824A1/fr active Granted
- 1981-01-12 SE SE8100123A patent/SE446290B/sv not_active IP Right Cessation
- 1981-01-12 JP JP220281A patent/JPS56104555A/ja active Pending
- 1981-01-13 NO NO810100A patent/NO155079C/no unknown
Also Published As
| Publication number | Publication date |
|---|---|
| GB2068688B (en) | 1984-01-04 |
| CA1145010A (en) | 1983-04-19 |
| DE3047942A1 (de) | 1981-10-01 |
| NO155079B (no) | 1986-10-27 |
| IL61640A (en) | 1983-06-15 |
| JPS56104555A (en) | 1981-08-20 |
| NO155079C (no) | 1987-02-04 |
| SE8100123L (sv) | 1981-07-15 |
| FR2473824A1 (fr) | 1981-07-17 |
| DE3047942C2 (US07909887-20110322-C00021.png) | 1989-04-13 |
| US4280222A (en) | 1981-07-21 |
| GB2068688A (en) | 1981-08-12 |
| NO810100L (no) | 1981-07-15 |
| SE446290B (sv) | 1986-08-25 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |