JPH0374968B2 - - Google Patents

Info

Publication number
JPH0374968B2
JPH0374968B2 JP15901985A JP15901985A JPH0374968B2 JP H0374968 B2 JPH0374968 B2 JP H0374968B2 JP 15901985 A JP15901985 A JP 15901985A JP 15901985 A JP15901985 A JP 15901985A JP H0374968 B2 JPH0374968 B2 JP H0374968B2
Authority
JP
Japan
Prior art keywords
frequency
signal
output
phase
intermediate frequency
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.)
Expired
Application number
JP15901985A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6218815A (ja
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP15901985A priority Critical patent/JPS6218815A/ja
Publication of JPS6218815A publication Critical patent/JPS6218815A/ja
Publication of JPH0374968B2 publication Critical patent/JPH0374968B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
JP15901985A 1985-07-18 1985-07-18 デジタルafc回路 Granted JPS6218815A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15901985A JPS6218815A (ja) 1985-07-18 1985-07-18 デジタルafc回路

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15901985A JPS6218815A (ja) 1985-07-18 1985-07-18 デジタルafc回路

Publications (2)

Publication Number Publication Date
JPS6218815A JPS6218815A (ja) 1987-01-27
JPH0374968B2 true JPH0374968B2 (pt) 1991-11-28

Family

ID=15684472

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15901985A Granted JPS6218815A (ja) 1985-07-18 1985-07-18 デジタルafc回路

Country Status (1)

Country Link
JP (1) JPS6218815A (pt)

Also Published As

Publication number Publication date
JPS6218815A (ja) 1987-01-27

Similar Documents

Publication Publication Date Title
EP0441593B1 (en) Automatic frequency control circuit
US6195400B1 (en) Two-mode demodulating apparatus
EP0124332A2 (en) A double conversion tuner
US5450621A (en) Radio receiver with digital control loop for coarse frequency acquisition and analog control loop for frequency lock-in
EP0394064A2 (en) Direct conversion receiver with dithering local carrier frequency for detecting transmitted carrier frequency
US5289506A (en) Automatic frequency control circuit
EP0643476A1 (en) Direct conversion receiver
JPH02500480A (ja) フェーズロック受信機における2重ポートfm復調
JPH1117750A (ja) 自動周波数制御装置
US5603109A (en) Automatic frequency control which monitors the frequency of a voltage controlled oscillator in a PLL demodulator
US4426627A (en) Phase-locked loop oscillator circuit utilizing a sub-loop with a second phase comparator
US4656431A (en) Digital frequency discriminator
US4053836A (en) Device for transmission of information by pulse code frequency shift modulation
US3978411A (en) Sweep output generator having a frequency modulated local oscillator for the station selector of a television receiver
JP3898839B2 (ja) 送信機
JPH0374968B2 (pt)
US4601060A (en) Automatic digital fine tuning system
US5900751A (en) Automatic frequency control circuit with simplified circuit constitution
EP0344991B1 (en) AFC apparatus
JPS6225543A (ja) 局部発振器の周波数安定化方式
JPH0614713B2 (ja) Afc回路
JPH0342807B2 (pt)
JPH0260263A (ja) 無線機に用いる局部発振器の周波数安定化回路
JP2513329B2 (ja) 周波数変調波受信装置
JP2743635B2 (ja) 信号受信装置