JPS63263926A - 自動ｉｆ正接ロック制御回路を備えた無線受信機 - Google Patents
自動ｉｆ正接ロック制御回路を備えた無線受信機Info
- Publication number
- JPS63263926A JPS63263926A JP63088344A JP8834488A JPS63263926A JP S63263926 A JPS63263926 A JP S63263926A JP 63088344 A JP63088344 A JP 63088344A JP 8834488 A JP8834488 A JP 8834488A JP S63263926 A JPS63263926 A JP S63263926A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- phase
- tangent
- frequency
- demodulated
- Prior art date
- 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
- 238000012545 processing Methods 0.000 claims description 6
- 230000007246 mechanism Effects 0.000 description 3
- 230000010363 phase shift Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000009977 dual effect Effects 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000013519 translation Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/06—Receivers
- H04B1/16—Circuits
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
- H03J7/00—Automatic frequency control; Automatic scanning over a band of frequencies
- H03J7/02—Automatic frequency control
- H03J7/04—Automatic frequency control where the frequency control is accomplished by varying the electrical characteristics of a non-mechanically adjustable element or where the nature of the frequency controlling element is not significant
- H03J7/08—Automatic frequency control where the frequency control is accomplished by varying the electrical characteristics of a non-mechanically adjustable element or where the nature of the frequency controlling element is not significant using varactors, i.e. voltage variable reactive diodes
- H03J7/10—Modification of automatic frequency control sensitivity or linearising automatic frequency control operation
-
- 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
- H03D1/2209—Decoders for simultaneous demodulation and decoding of signals composed of a sum-signal and a suppressed carrier, amplitude modulated by a difference signal, e.g. stereocoders
- H03D1/2236—Decoders for simultaneous demodulation and decoding of signals composed of a sum-signal and a suppressed carrier, amplitude modulated by a difference signal, e.g. stereocoders using a phase locked loop
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Superheterodyne Receivers (AREA)
- Circuits Of Receivers In General (AREA)
- Channel Selection Circuits, Automatic Tuning Circuits (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US07/038,563 US4782532A (en) | 1987-04-15 | 1987-04-15 | Automatic IF tangent lock control circuit |
| US38563 | 1987-04-15 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63263926A true JPS63263926A (ja) | 1988-10-31 |
| JPH0580177B2 JPH0580177B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1993-11-08 |
Family
ID=21900649
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63088344A Granted JPS63263926A (ja) | 1987-04-15 | 1988-04-12 | 自動ｉｆ正接ロック制御回路を備えた無線受信機 |
Country Status (11)
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5222144A (en) * | 1991-10-28 | 1993-06-22 | Ford Motor Company | Digital quadrature radio receiver with two-step processing |
| IL132161A (en) | 1999-09-30 | 2002-09-12 | Netmor Ltd | Digital coherent envelope demodulation of fdma signals |
| EP2725712A1 (fr) * | 2012-10-26 | 2014-04-30 | EM Microelectronic-Marin SA | Système récepteur amélioré |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4583244A (en) * | 1984-06-21 | 1986-04-15 | Motorola, Inc. | Automatic frequency control for local oscillator used with an AM stereo decoder |
| AU572077B2 (en) * | 1985-02-01 | 1988-04-28 | Nec Corporation | Stripline diode mixer |
-
1987
- 1987-04-15 US US07/038,563 patent/US4782532A/en not_active Expired - Lifetime
-
1988
- 1988-01-21 IN IN44/MAS/88A patent/IN170411B/en unknown
- 1988-01-22 CA CA000557148A patent/CA1296776C/en not_active Expired - Lifetime
- 1988-02-08 AU AU11406/88A patent/AU594286B2/en not_active Ceased
- 1988-02-18 GB GB8803777A patent/GB2203908B/en not_active Expired - Lifetime
- 1988-03-05 CN CN88101130A patent/CN1015854B/zh not_active Expired
- 1988-03-07 MX MX010679A patent/MX168451B/es unknown
- 1988-03-21 BR BR8801268A patent/BR8801268A/pt not_active IP Right Cessation
- 1988-04-12 JP JP63088344A patent/JPS63263926A/ja active Granted
- 1988-04-14 KR KR1019880004236A patent/KR960003836B1/ko not_active Expired - Fee Related
-
1994
- 1994-02-02 HK HK110/94A patent/HK11094A/xx not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| KR880013332A (ko) | 1988-11-30 |
| GB8803777D0 (en) | 1988-03-16 |
| AU594286B2 (en) | 1990-03-01 |
| GB2203908A (en) | 1988-10-26 |
| IN170411B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1992-03-21 |
| US4782532A (en) | 1988-11-01 |
| CA1296776C (en) | 1992-03-03 |
| GB2203908B (en) | 1991-10-23 |
| BR8801268A (pt) | 1988-10-25 |
| AU1140688A (en) | 1988-10-20 |
| CN88101130A (zh) | 1988-10-26 |
| MX168451B (es) | 1993-05-25 |
| KR960003836B1 (ko) | 1996-03-22 |
| JPH0580177B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1993-11-08 |
| CN1015854B (zh) | 1992-03-11 |
| HK11094A (en) | 1994-02-09 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| LAPS | Cancellation because of no payment of annual fees |