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BRPI0418819A - Method and apparatus for determining the type of a versatile digital disc - Google Patents

Method and apparatus for determining the type of a versatile digital disc

Info

Publication number
BRPI0418819A
BRPI0418819A BRPI0418819-5A BRPI0418819A BRPI0418819A BR PI0418819 A BRPI0418819 A BR PI0418819A BR PI0418819 A BRPI0418819 A BR PI0418819A BR PI0418819 A BRPI0418819 A BR PI0418819A
Authority
BR
Brazil
Prior art keywords
digital disc
type
versatile digital
determining
oscillation signal
Prior art date
Application number
BRPI0418819-5A
Other languages
Portuguese (pt)
Inventor
Ricky Chang
Allen Lu
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
Priority claimed from CNB200410088448XA external-priority patent/CN1312690C/en
Application filed by Via Tech Inc filed Critical Via Tech Inc
Publication of BRPI0418819A publication Critical patent/BRPI0418819A/en

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
    • G11B19/125—Control of operating function, e.g. switching from recording to reproducing by sensing distinguishing features of or on records, e.g. diameter end mark involving the detection of carrier data format

Landscapes

  • Optical Recording Or Reproduction (AREA)
  • Rotational Drive Of Disk (AREA)
  • Automatic Disk Changers (AREA)

Abstract

Método e aparelho para determinar o tipo de um disco digital versátil. O presente invento descreve um método e um aparelho para determinar o tipo de um disco digital versátil (DVDs). O método inclui configurar parâmetros relativos, obter um sinal de oscilação a partir de um DVD, configurar um fator de divisão de freqüência, e dividir a freqüência do sinal de oscilação pelo fator de divisão de freqüência. Então, o tempo exigido para o disco digital versátil girar uma volta acionado pelo motor de um tocador, é configurado como unidade de tempo para calcular a freqüência do sinal de oscilação dividido. Finalmente, o tipo de disco digital versátil é determinado de acordo com a freqüência do sinal de oscilação.Method and apparatus for determining the type of a versatile digital disc. The present invention describes a method and apparatus for determining the type of a versatile digital disc (DVDs). The method includes setting relative parameters, obtaining an oscillation signal from a DVD, setting a frequency division factor, and dividing the oscillation signal frequency by the frequency division factor. Then, the time required for the versatile digital disc to rotate a turn driven by a player motor is set as the unit of time for calculating the frequency of the split oscillation signal. Finally, the versatile digital disc type is determined according to the oscillation signal frequency.

BRPI0418819-5A 2004-05-25 2004-12-03 Method and apparatus for determining the type of a versatile digital disc BRPI0418819A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US57466504P 2004-05-25 2004-05-25
CNB200410088448XA CN1312690C (en) 2004-05-25 2004-10-29 Method and device for judging type of digital versatile disc
PCT/CN2004/001409 WO2005117008A1 (en) 2004-05-25 2004-12-03 Method and apparatus for type determination of digital versatile discs

Publications (1)

Publication Number Publication Date
BRPI0418819A true BRPI0418819A (en) 2007-11-13

Family

ID=35451101

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0418819-5A BRPI0418819A (en) 2004-05-25 2004-12-03 Method and apparatus for determining the type of a versatile digital disc

Country Status (2)

Country Link
BR (1) BRPI0418819A (en)
WO (1) WO2005117008A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7570561B2 (en) 2004-05-25 2009-08-04 Bryan Tai Method for determining type of digital versatile discs
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 (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI316702B (en) 2003-09-15 2009-11-01 Tian Holdings Llc Discriminating method of an optical disc device for ascertaining the format of an loaded optical disc
US7626907B2 (en) 2004-05-25 2009-12-01 Ricky Chang Method and apparatus for determining type of digital versatile disc

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4491943B2 (en) * 2000-09-22 2010-06-30 ソニー株式会社 Optical disk drive and optical disk identification method
JP2003016641A (en) * 2001-06-28 2003-01-17 Matsushita Electric Ind Co Ltd Optical disk apparatus and optical disk determination method
TNSN03009A1 (en) * 2001-07-02 2005-04-08 Koninkl Philips Electronics Nv Record carrier and apparatus for scanning the record carrier
JP2003078392A (en) * 2001-09-04 2003-03-14 Sony Corp Automatic follow-up type band-pass filter and optical disk reproducing device

Cited By (4)

* 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
US7570561B2 (en) 2004-05-25 2009-08-04 Bryan Tai Method for determining type of digital versatile discs
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
WO2005117008A1 (en) 2005-12-08
WO2005117008A8 (en) 2006-11-23

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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 4A, 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.