FI105615B - Digitaalinen menetelmä ja laite IF-signaalin taajuuden määrittämiseksi - Google Patents

Digitaalinen menetelmä ja laite IF-signaalin taajuuden määrittämiseksi Download PDF

Info

Publication number
FI105615B
FI105615B FI916159A FI916159A FI105615B FI 105615 B FI105615 B FI 105615B FI 916159 A FI916159 A FI 916159A FI 916159 A FI916159 A FI 916159A FI 105615 B FI105615 B FI 105615B
Authority
FI
Finland
Prior art keywords
signal
calculation
period
frequency
image carrier
Prior art date
Application number
FI916159A
Other languages
English (en)
Finnish (fi)
Swedish (sv)
Other versions
FI916159A0 (fi
FI916159A (fi
Inventor
Juri Tults
Original Assignee
Thomson Consumer Electronics
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 by Thomson Consumer Electronics filed Critical Thomson Consumer Electronics
Publication of FI916159A0 publication Critical patent/FI916159A0/fi
Publication of FI916159A publication Critical patent/FI916159A/fi
Application granted granted Critical
Publication of FI105615B publication Critical patent/FI105615B/fi

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H04N5/50—Tuning indicators; Automatic tuning control
    • 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
    • H03J7/06—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 counters or frequency dividers
    • H03J7/065—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 counters or frequency dividers the counter or frequency divider being used in a phase locked loop

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Measuring Frequencies, Analyzing Spectra (AREA)
  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
  • Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
  • Circuits Of Receivers In General (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
  • Television Receiver Circuits (AREA)
FI916159A 1990-12-31 1991-12-30 Digitaalinen menetelmä ja laite IF-signaalin taajuuden määrittämiseksi FI105615B (fi)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US63584390 1990-12-31
US07/635,843 US5212554A (en) 1990-12-31 1990-12-31 Digital method and apparatus for evaluating a frequency parameter of an if signal

Publications (3)

Publication Number Publication Date
FI916159A0 FI916159A0 (fi) 1991-12-30
FI916159A FI916159A (fi) 1992-07-01
FI105615B true FI105615B (fi) 2000-09-15

Family

ID=24549345

Family Applications (1)

Application Number Title Priority Date Filing Date
FI916159A FI105615B (fi) 1990-12-31 1991-12-30 Digitaalinen menetelmä ja laite IF-signaalin taajuuden määrittämiseksi

Country Status (15)

Country Link
US (1) US5212554A (ja)
EP (1) EP0493755B1 (ja)
JP (1) JP2684133B2 (ja)
KR (1) KR100220306B1 (ja)
CN (1) CN1061504C (ja)
BR (1) BR9105501A (ja)
CA (1) CA2057083C (ja)
DE (1) DE69122597T2 (ja)
ES (1) ES2094185T3 (ja)
FI (1) FI105615B (ja)
HU (1) HU212522B (ja)
MX (1) MX173800B (ja)
MY (1) MY106646A (ja)
SG (1) SG85058A1 (ja)
TR (1) TR25852A (ja)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR960014233B1 (ko) * 1993-11-05 1996-10-14 엘지전자 주식회사 텔레비젼의 자동미세 튜닝장치 및 그 방법
US5552838A (en) * 1993-12-24 1996-09-03 Kabushiki Kaisha Toshiba Apparatus for tuning offset signals by controlling a tuner based on a difference in frequency of signals tuned by that tuner
FR2841067A1 (fr) * 2002-06-18 2003-12-19 Thomson Licensing Sa Systeme de transmission a haute stabilite en frequence
US7693237B2 (en) * 2007-02-14 2010-04-06 Wilinx Corporation Systems and methods for synchronizing wireless communication systems
CN102999459A (zh) * 2011-09-09 2013-03-27 上海华虹Nec电子有限公司 硅片测试机台与bist模块的通信方法
US9509353B2 (en) * 2014-08-20 2016-11-29 Nxp B.V. Data processing device
KR101993552B1 (ko) * 2018-01-29 2019-06-26 고려대학교 산학협력단 헤테로다인 구조의 주파수 고정 루프
CN111200469A (zh) * 2018-11-19 2020-05-26 联发科技股份有限公司 调频频道侦测电路及相关的方法

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4031549A (en) * 1976-05-21 1977-06-21 Rca Corporation Television tuning system with provisions for receiving RF carrier at nonstandard frequency
US4387400A (en) * 1981-05-11 1983-06-07 Zenith Radio Corporation Tuning system for a television receiver
US4485404A (en) * 1982-09-01 1984-11-27 Rca Corporation Digital aft system which is activated during vertical retrace intervals
JPS61227484A (ja) * 1985-04-01 1986-10-09 Sony Corp ビデオ信号検出回路
US4689685A (en) * 1986-01-31 1987-08-25 Rca Corporation Television tuning system with AFT provisions
US4727591A (en) * 1986-09-04 1988-02-23 Arvin Industries, Inc. Microprocessor controlled tuning system
US4868892A (en) * 1987-05-08 1989-09-19 Rca Licensing Corporation Tuning system with provisions for calculating the local oscillator frequency from an aft characteristic
JPS6411408A (en) * 1987-07-03 1989-01-17 Nec Corp Automatic frequency sweeping method for frequency synthesizer type channel selecting device
NL8801874A (nl) * 1988-07-26 1990-02-16 Philips Nv Televisie-ontvanger met een afstemschakeling die een frequentiesyntheseschakeling bevat.

Also Published As

Publication number Publication date
BR9105501A (pt) 1992-09-01
CN1061504C (zh) 2001-01-31
JP2684133B2 (ja) 1997-12-03
KR100220306B1 (ko) 1999-09-15
DE69122597T2 (de) 1997-03-06
CA2057083A1 (en) 1992-07-01
EP0493755A3 (en) 1993-04-28
CN1063192A (zh) 1992-07-29
SG85058A1 (en) 2001-12-19
EP0493755A2 (en) 1992-07-08
HU913941D0 (en) 1992-03-30
CA2057083C (en) 1994-09-13
ES2094185T3 (es) 1997-01-16
MY106646A (en) 1995-07-31
EP0493755B1 (en) 1996-10-09
MX9102875A (es) 1992-06-01
HUT62128A (en) 1993-03-29
HU212522B (en) 1996-07-29
FI916159A0 (fi) 1991-12-30
US5212554A (en) 1993-05-18
MX173800B (es) 1994-03-28
FI916159A (fi) 1992-07-01
TR25852A (tr) 1993-09-01
JPH0580088A (ja) 1993-03-30
DE69122597D1 (de) 1996-11-14
KR920014216A (ko) 1992-07-30

Similar Documents

Publication Publication Date Title
US4575761A (en) AFT arrangement for a double conversion tuner
US4025953A (en) Frequency synthesizer tuning system for television receivers
US4078212A (en) Dual mode frequency synthesizer for a television tuning apparatus
US4405947A (en) Dual search mode type tuning system
US5347365A (en) Device for receiving closed captioned broadcasts
FI105615B (fi) Digitaalinen menetelmä ja laite IF-signaalin taajuuden määrittämiseksi
JPS627728B2 (ja)
US6028641A (en) Device and method for generating a stable system clock in HDTV
FI105614B (fi) Mikroprosessoriohjattu digitaalinen AFT-yksikkö
US4357632A (en) Search type tuning system with synchronization signal presence transition detector
EP0420275B1 (en) Automatic frequency control method and receiving apparatus using thereof
US5303398A (en) Stability detection method and apparatus for a tuning system
US7103132B1 (en) Phase comparator and method of controlling power saving operation of the same, and semiconductor integrated circuit
JPH06326740A (ja) 移動無線機
EP0480597A3 (en) Phase lock loop
JPH04229779A (ja) 入力信号がテレビジョン信号の正しい同期成分を含んでいるか否かを判定する装置
US7076221B2 (en) Digital automatic fine tuning method and apparatus
JPH09271000A (ja) 文字放送用のデータ探索回路
JP2728517B2 (ja) 選局装置
JPS62200836A (ja) デ−タ取り込み回路
GB2191352A (en) Frequency synthesiser
JPH0535952B2 (ja)
JPH07326966A (ja) Ｐｌｌ回路
JPH09200635A (ja) 映像信号受信回路

Legal Events

Date Code Title Description
MA Patent expired