BRPI0418821A - método para determinar o tipo de um disco digital versátil (dvd) - Google Patents

método para determinar o tipo de um disco digital versátil (dvd)

Info

Publication number
BRPI0418821A
BRPI0418821A BRPI0418821-7A BRPI0418821A BRPI0418821A BR PI0418821 A BRPI0418821 A BR PI0418821A BR PI0418821 A BRPI0418821 A BR PI0418821A BR PI0418821 A BRPI0418821 A BR PI0418821A
Authority
BR
Brazil
Prior art keywords
dvd
determining
type
versatile digital
signal
Prior art date
Application number
BRPI0418821-7A
Other languages
English (en)
Inventor
Bryan Tai
Original Assignee
Via Tech Inc
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 Via Tech Inc filed Critical Via Tech Inc
Publication of BRPI0418821A publication Critical patent/BRPI0418821A/pt

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
    • G11B19/02—Control of operating function, e.g. switching from recording to reproducing
    • G11B19/12—Control of operating function, e.g. switching from recording to reproducing by sensing distinguishing features of or on records, e.g. diameter end mark

Landscapes

  • Optical Recording Or Reproduction (AREA)

Abstract

Método para determinar o tipo de um disco digital versátil (DVD). é provido um método para determinar o tipo de discos digitais versáteis (DVDs), para distinguir entre um DVD só leitura (ROM), um DVD gravável e um DVD regravável. O método inclui ler um sinal de erro de posicionamento de pistas a partir do DVD. Se a amplitude do sinal de erro de posicionamento de pistas for maior que um primeiro valor predeterminado, o DVD é um DVD gravável; caso contrário, é lido um sinal RECD a partir do DVD. Se o sinal RECD for zero, o DVD é um DVD regravável virgem; caso contrário, o sinal de nível RF total é lido a partir do DVD. Se o sinal de nível RF total for maior que um segundo valor predeterminado, o DVD é um DVD ROM; caso contrário, o DVD é um DVD regravável com dados.
BRPI0418821-7A 2004-05-25 2004-12-27 método para determinar o tipo de um disco digital versátil (dvd) BRPI0418821A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US57466504P 2004-05-25 2004-05-25
PCT/CN2004/001531 WO2005117009A1 (fr) 2004-05-25 2004-12-27 Procede de verification du type de dvd

Publications (1)

Publication Number Publication Date
BRPI0418821A true BRPI0418821A (pt) 2007-11-13

Family

ID=34676931

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0418821-7A BRPI0418821A (pt) 2004-05-25 2004-12-27 método para determinar o tipo de um disco digital versátil (dvd)

Country Status (5)

Country Link
CN (3) CN1312690C (pt)
BR (1) BRPI0418821A (pt)
RU (2) RU2006141413A (pt)
TW (3) TWI340964B (pt)
WO (1) WO2005117009A1 (pt)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7746745B2 (en) 2004-05-25 2010-06-29 Ricky Chang Method for determining the type of digital versatile disc
US7843786B2 (en) 2002-10-24 2010-11-30 Yi-Chung Chan Discrimination method of optical storage medium
US7995434B2 (en) 2003-10-31 2011-08-09 Tian Holdings, Llc Method and apparatus for generating absolute time in pregroove data

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7602684B2 (en) 2003-09-15 2009-10-13 Chun-Ta Chen Discriminating method of an optical disc device for ascertaining the format of a loaded optical disc
US7626907B2 (en) 2004-05-25 2009-12-01 Ricky Chang Method and apparatus for determining type of digital versatile disc
US7570561B2 (en) 2004-05-25 2009-08-04 Bryan Tai Method for determining type of digital versatile discs

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3831063B2 (ja) * 1997-04-25 2006-10-11 パイオニア株式会社 光ディスク判別装置
JP2000251280A (ja) * 1999-02-24 2000-09-14 Asahi Optical Co Ltd 光ディスク用ピックアップの性能測定方法および装置
JP2000322742A (ja) * 1999-05-10 2000-11-24 Matsushita Electric Ind Co Ltd 光ディスク装置
JP3696044B2 (ja) * 2000-04-21 2005-09-14 松下電器産業株式会社 光ディスク装置とその光ディスク判別方法
JP4491943B2 (ja) * 2000-09-22 2010-06-30 ソニー株式会社 光ディスクドライブおよび光ディスク判別方法
JP4067781B2 (ja) * 2001-04-13 2008-03-26 株式会社日立エルジーデータストレージ ディスク再生装置
JP2003078392A (ja) * 2001-09-04 2003-03-14 Sony Corp 自動追従型バンドパスフィルタおよび光ディスク再生装置
JP3981559B2 (ja) * 2002-01-24 2007-09-26 株式会社日立エルジーデータストレージ 光ディスク装置及びそのディスク判別方法
JP2004110901A (ja) * 2002-09-17 2004-04-08 Sanyo Electric Co Ltd ディスクの種類判別方法およびディスク装置
CN100337280C (zh) * 2004-02-17 2007-09-12 联发科技股份有限公司 辨别光盘格式的方法

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7843786B2 (en) 2002-10-24 2010-11-30 Yi-Chung Chan Discrimination method of optical storage medium
US7995434B2 (en) 2003-10-31 2011-08-09 Tian Holdings, Llc Method and apparatus for generating absolute time in pregroove data
US7746745B2 (en) 2004-05-25 2010-06-29 Ricky Chang Method for determining the type of digital versatile disc

Also Published As

Publication number Publication date
TWI340964B (en) 2011-04-21
CN1312690C (zh) 2007-04-25
TW200539116A (en) 2005-12-01
RU2006140292A (ru) 2008-06-27
TWI253060B (en) 2006-04-11
CN1637909A (zh) 2005-07-13
WO2005117009A1 (fr) 2005-12-08
TW200539115A (en) 2005-12-01
CN100367367C (zh) 2008-02-06
CN1700311A (zh) 2005-11-23
CN1324597C (zh) 2007-07-04
TWI307494B (en) 2009-03-11
CN1601639A (zh) 2005-03-30
RU2006141413A (ru) 2008-06-27
TW200539114A (en) 2005-12-01

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Legal Events

Date Code Title Description
B08F Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette]

Free format text: REFERENTE AS 5A, 6A E 7A ANUIDADES.

B08K Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette]

Free format text: REFERENTE AO DESPACHO 8.6 PUBLICADO NA RPI 2158 DE 15/05/2012.