CA2525944C - Reciprocal index lookup for btsc compatible coefficients - Google Patents

Reciprocal index lookup for btsc compatible coefficients Download PDF

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Publication number
CA2525944C
CA2525944C CA2525944A CA2525944A CA2525944C CA 2525944 C CA2525944 C CA 2525944C CA 2525944 A CA2525944 A CA 2525944A CA 2525944 A CA2525944 A CA 2525944A CA 2525944 C CA2525944 C CA 2525944C
Authority
CA
Canada
Prior art keywords
value
filter coefficient
reciprocal
slope
order bits
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 - Fee Related
Application number
CA2525944A
Other languages
English (en)
French (fr)
Other versions
CA2525944A1 (en
Inventor
Mathew F. Easley
Roger Darr
Mathew Barnhill
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.)
THAT Corp
Original Assignee
THAT Corp
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 THAT Corp filed Critical THAT Corp
Priority claimed from PCT/US2003/010834 external-priority patent/WO2004100604A1/en
Publication of CA2525944A1 publication Critical patent/CA2525944A1/en
Application granted granted Critical
Publication of CA2525944C publication Critical patent/CA2525944C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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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
    • H04N5/60—Receiver circuitry for the reception of television signals according to analogue transmission standards for the sound signals
    • H04N5/602—Receiver circuitry for the reception of television signals according to analogue transmission standards for the sound signals for digital sound signals
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G7/00—Volume compression or expansion in amplifiers
    • H03G7/007—Volume compression or expansion in amplifiers of digital or coded signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
CA2525944A 2003-04-09 2003-04-09 Reciprocal index lookup for btsc compatible coefficients Expired - Fee Related CA2525944C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US2003/010834 WO2004100604A1 (en) 2000-02-18 2003-04-09 Reciprocal index lookup for btsc compatible coefficients

Publications (2)

Publication Number Publication Date
CA2525944A1 CA2525944A1 (en) 2004-11-18
CA2525944C true CA2525944C (en) 2012-06-05

Family

ID=34392765

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2525944A Expired - Fee Related CA2525944C (en) 2003-04-09 2003-04-09 Reciprocal index lookup for btsc compatible coefficients

Country Status (4)

Country Link
EP (1) EP1618760A4 (de)
CN (1) CN1795697A (de)
AU (1) AU2003224895A1 (de)
CA (1) CA2525944C (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6665610B2 (ja) * 2016-01-08 2020-03-13 株式会社ジェイテクト モータ制御装置
US10122346B2 (en) * 2017-03-03 2018-11-06 Synaptics Incorporated Coefficient generation for digital filters
WO2019121982A1 (en) * 2017-12-19 2019-06-27 Dolby International Ab Methods and apparatus for unified speech and audio decoding qmf based harmonic transposer improvements
CN109063652B (zh) * 2018-08-06 2022-02-11 高维度（深圳）生物信息智能应用有限公司 一种信号处理方法、系统及计算机存储介质
CN115767359B (zh) * 2022-11-29 2026-04-14 芯原微电子(上海)股份有限公司 降噪方法及装置、测试方法及装置、电子设备和存储介质

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5091957A (en) * 1990-04-18 1992-02-25 Thomson Consumer Electronics, Inc. Wideband expander for stereo and SAP signals
US5627857A (en) * 1995-09-15 1997-05-06 Qualcomm Incorporated Linearized digital automatic gain control
US5796842A (en) * 1996-06-07 1998-08-18 That Corporation BTSC encoder
DE59811994D1 (de) * 1998-02-12 2004-10-28 Micronas Gmbh Trägererzeugungseinrichtung für einen digitalen Demodulator von MPX-Signalen
US6259482B1 (en) * 1998-03-11 2001-07-10 Matthew F. Easley Digital BTSC compander system
US6192086B1 (en) * 1999-01-14 2001-02-20 Antec Corporation Digital sub-systems and building blocks for a mostly digital low-cost BTSC compatible encoder

Also Published As

Publication number Publication date
EP1618760A4 (de) 2013-03-20
AU2003224895A1 (en) 2004-11-26
CA2525944A1 (en) 2004-11-18
CN1795697A (zh) 2006-06-28
EP1618760A1 (de) 2006-01-25

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Effective date: 20140409