JPS5229146B2 - - Google Patents
Info
- Publication number
- JPS5229146B2 JPS5229146B2 JP49145156A JP14515674A JPS5229146B2 JP S5229146 B2 JPS5229146 B2 JP S5229146B2 JP 49145156 A JP49145156 A JP 49145156A JP 14515674 A JP14515674 A JP 14515674A JP S5229146 B2 JPS5229146 B2 JP S5229146B2
- 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.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/204—Multiple access
- H04B7/212—Time-division multiple access [TDMA]
- H04B7/2125—Synchronisation
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
- H03L7/00—Automatic control of frequency or phase; Synchronisation
- H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
- H03L7/08—Details of the phase-locked loop
- H03L7/10—Details of the phase-locked loop for assuring initial synchronisation or for broadening the capture range
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Channel Selection Circuits, Automatic Tuning Circuits (AREA)
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Radio Relay Systems (AREA)
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP49145156A JPS5229146B2 (en:Method) | 1974-12-18 | 1974-12-18 | |
| US05/641,709 US4031471A (en) | 1974-12-18 | 1975-12-17 | Automatic frequency control circuit |
| FR7538709A FR2295623A1 (fr) | 1974-12-18 | 1975-12-17 | Circuit de commande de frequence automatique |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP49145156A JPS5229146B2 (en:Method) | 1974-12-18 | 1974-12-18 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5171657A JPS5171657A (en:Method) | 1976-06-21 |
| JPS5229146B2 true JPS5229146B2 (en:Method) | 1977-07-30 |
Family
ID=15378708
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP49145156A Expired JPS5229146B2 (en:Method) | 1974-12-18 | 1974-12-18 |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US4031471A (en:Method) |
| JP (1) | JPS5229146B2 (en:Method) |
| FR (1) | FR2295623A1 (en:Method) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54100639A (en) * | 1978-01-26 | 1979-08-08 | Fujitsu Ltd | Band-pass filter circuit |
| US4651104A (en) * | 1982-07-07 | 1987-03-17 | Fujitsu Limited | Frequency converter with automatic frequency control |
| US6587678B1 (en) * | 1999-03-02 | 2003-07-01 | Skyworks Solutions, Inc. | Direct conversion receiver employing subharmonic frequency translator architecture and related preprocessor |
| JP3988392B2 (ja) * | 2001-01-24 | 2007-10-10 | 日本電気株式会社 | 携帯無線端末、ａｆｃ制御方法及びａｆｃ制御プログラム |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2915626A (en) * | 1954-04-08 | 1959-12-01 | Raytheon Co | Automatic frequency control responsive to carrier frequency of distinctive pulse and preventing drift during signal failure |
| US2988637A (en) * | 1959-08-18 | 1961-06-13 | Gen Electric | Frequency control system |
| NL277424A (en:Method) * | 1961-04-25 | |||
| US3479600A (en) * | 1966-10-05 | 1969-11-18 | Bell Telephone Labor Inc | Automatic frequency control system for controlling the frequency of the local oscillator used in a differential phase modulated pcm receiver |
| GB1409798A (en) * | 1971-09-25 | 1975-10-15 | Matsushita Electric Ind Co Ltd | Frequency control arrangements |
-
1974
- 1974-12-18 JP JP49145156A patent/JPS5229146B2/ja not_active Expired
-
1975
- 1975-12-17 FR FR7538709A patent/FR2295623A1/fr active Granted
- 1975-12-17 US US05/641,709 patent/US4031471A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| FR2295623A1 (fr) | 1976-07-16 |
| JPS5171657A (en:Method) | 1976-06-21 |
| US4031471A (en) | 1977-06-21 |
| FR2295623B1 (en:Method) | 1980-08-14 |