WO1995027371A1 - Data segment driven afc latch for bi-phase stable frequency phase locked loop - Google Patents

Data segment driven afc latch for bi-phase stable frequency phase locked loop Download PDF

Info

Publication number
WO1995027371A1
WO1995027371A1 PCT/US1995/003754 US9503754W WO9527371A1 WO 1995027371 A1 WO1995027371 A1 WO 1995027371A1 US 9503754 W US9503754 W US 9503754W WO 9527371 A1 WO9527371 A1 WO 9527371A1
Authority
WO
WIPO (PCT)
Prior art keywords
mode
agc
coherent
gain
data segment
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.)
Ceased
Application number
PCT/US1995/003754
Other languages
English (en)
French (fr)
Inventor
Gopalan Krishnamurthy
Victor G. Mycynek
Gary J. Sgrignoli
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zenith Electronics LLC
Original Assignee
Zenith Electronics LLC
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 Zenith Electronics LLC filed Critical Zenith Electronics LLC
Priority to JP52577895A priority Critical patent/JP3188468B2/ja
Priority to CA002186339A priority patent/CA2186339C/en
Publication of WO1995027371A1 publication Critical patent/WO1995027371A1/en
Priority to MXPA/A/1996/004558A priority patent/MXPA96004558A/xx
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • H04N5/455—Demodulation-circuits

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Circuits Of Receivers In General (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Television Systems (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
PCT/US1995/003754 1994-04-04 1995-03-31 Data segment driven afc latch for bi-phase stable frequency phase locked loop Ceased WO1995027371A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP52577895A JP3188468B2 (ja) 1994-04-04 1995-03-31 双位相安定周波数位相ロックループのためのデータセグメント駆動ａｆｃラッチ
CA002186339A CA2186339C (en) 1994-04-04 1995-03-31 Data segment driven afc latch for bi-phase stable frequency phase locked loop
MXPA/A/1996/004558A MXPA96004558A (es) 1994-04-04 1996-10-03 Receptor y metodo para estabilizar un demodulador por aumento de un componente piloto cd recobrado

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US22307794A 1994-04-04 1994-04-04
US08/223,077 1994-04-04
US08/354,408 US5627604A (en) 1994-04-04 1994-12-12 Stabilizing the lock up of a bi-phase stable FPLL by augmenting a recovered DC pilot
US08/354,408 1994-12-12

Publications (1)

Publication Number Publication Date
WO1995027371A1 true WO1995027371A1 (en) 1995-10-12

Family

ID=26917422

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1995/003754 Ceased WO1995027371A1 (en) 1994-04-04 1995-03-31 Data segment driven afc latch for bi-phase stable frequency phase locked loop

Country Status (7)

Country Link
US (1) US5627604A (https=)
JP (1) JP3188468B2 (https=)
KR (1) KR100274291B1 (https=)
CN (1) CN1078794C (https=)
CA (1) CA2186339C (https=)
TW (1) TW313742B (https=)
WO (1) WO1995027371A1 (https=)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001006774A1 (en) * 1999-07-16 2001-01-25 Thomson Licensing S.A. Selective gain adjustement to aid carrier acquisition in a high definition television receiver
US6985192B1 (en) 1999-07-16 2006-01-10 Thomson Licensing Selective gain adjustment to aid carrier acquisition in a high definition television receiver

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BR9909264A (pt) * 1998-09-28 2002-01-02 Matsushita Eletric Industrtial Receptor vsb
JP2000115263A (ja) * 1998-09-30 2000-04-21 Matsushita Electric Ind Co Ltd ディジタル放送復調装置
US6300024B1 (en) 1999-06-30 2001-10-09 Canon Kabushiki Kaisha Toner, two-component type developer, heat fixing method, image forming method and apparatus unit
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
US7995648B2 (en) * 2004-04-09 2011-08-09 Trident Microsystems (Far East) Ltd. Advanced digital receiver
CN101438494B (zh) 2004-04-09 2012-02-22 上海奇普科技有限公司 由从信道接收的信号的采样导出均衡值的装置和方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4796102A (en) * 1987-08-03 1989-01-03 Motorola, Inc. Automatic frequency control system
US4855835A (en) * 1987-08-14 1989-08-08 Alps Electric Co., Ltd. AFT circuit for CATV receiver system
US5087975A (en) * 1990-11-09 1992-02-11 Zenith Electronics Corporation VSB HDTV transmission system with reduced NTSC co-channel interference
WO1992014343A1 (en) * 1991-02-04 1992-08-20 General Electric Company Modulator/demodulator for compatible high definition television system
WO1992016072A2 (en) * 1991-03-11 1992-09-17 Zenith Electronics Corporation Television signal transmission system with carrier offset compensation
US5175626A (en) * 1991-07-25 1992-12-29 Rca Thomson Licensing Corporation Apparatus providing a clock signal for a digital television receiver in response to a channel change

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4091410A (en) * 1976-11-08 1978-05-23 Zenith Radio Corporation Frequency and phase lock loop synchronous detecting system having a pair of phase lock conditions
US4608604A (en) * 1983-04-08 1986-08-26 Ampex Corporation Circuit for reducing AFC offset error
US4823399A (en) * 1987-07-30 1989-04-18 General Instrument Corporation Refined tuning of RF receiver with frequency-locked loop
US5025455A (en) * 1989-11-30 1991-06-18 The United States Of America As Represented By The Administer, National Aeronautics And Space Administration Phase ambiguity resolution for offset QPSK modulation systems
WO1995018509A1 (en) 1993-12-29 1995-07-06 Zenith Electronics Corporation Polarity selection circuit for bi-phase stable fpll

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4796102A (en) * 1987-08-03 1989-01-03 Motorola, Inc. Automatic frequency control system
US4855835A (en) * 1987-08-14 1989-08-08 Alps Electric Co., Ltd. AFT circuit for CATV receiver system
US5087975A (en) * 1990-11-09 1992-02-11 Zenith Electronics Corporation VSB HDTV transmission system with reduced NTSC co-channel interference
WO1992009174A1 (en) * 1990-11-09 1992-05-29 Zenith Electronics Corporation Vsb hdtv transmission system with reduced ntsc co-channel interference
WO1992014343A1 (en) * 1991-02-04 1992-08-20 General Electric Company Modulator/demodulator for compatible high definition television system
WO1992016072A2 (en) * 1991-03-11 1992-09-17 Zenith Electronics Corporation Television signal transmission system with carrier offset compensation
US5175626A (en) * 1991-07-25 1992-12-29 Rca Thomson Licensing Corporation Apparatus providing a clock signal for a digital television receiver in response to a channel change

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001006774A1 (en) * 1999-07-16 2001-01-25 Thomson Licensing S.A. Selective gain adjustement to aid carrier acquisition in a high definition television receiver
US6985192B1 (en) 1999-07-16 2006-01-10 Thomson Licensing Selective gain adjustment to aid carrier acquisition in a high definition television receiver

Also Published As

Publication number Publication date
CA2186339A1 (en) 1995-10-12
CN1145151A (zh) 1997-03-12
KR970702659A (ko) 1997-05-13
TW313742B (https=) 1997-08-21
JP3188468B2 (ja) 2001-07-16
CN1078794C (zh) 2002-01-30
US5627604A (en) 1997-05-06
JPH09511629A (ja) 1997-11-18
KR100274291B1 (ko) 2000-12-15
CA2186339C (en) 1999-12-07
MX9604558A (es) 1997-09-30

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