WO2003051046A3 - Apparatus and method for synchronizing presentation from bit streams based on their content - Google Patents

Apparatus and method for synchronizing presentation from bit streams based on their content Download PDF

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Publication number
WO2003051046A3
WO2003051046A3 PCT/IB2002/005019 IB0205019W WO03051046A3 WO 2003051046 A3 WO2003051046 A3 WO 2003051046A3 IB 0205019 W IB0205019 W IB 0205019W WO 03051046 A3 WO03051046 A3 WO 03051046A3
Authority
WO
WIPO (PCT)
Prior art keywords
content
synchronized
playbacks
initiator
control function
Prior art date
Application number
PCT/IB2002/005019
Other languages
French (fr)
Other versions
WO2003051046A2 (en
Inventor
Angel Janevski
Original Assignee
Koninkl Philips Electronics Nv
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 Koninkl Philips Electronics Nv filed Critical Koninkl Philips Electronics Nv
Priority to DE60237403T priority Critical patent/DE60237403D1/en
Priority to AU2002347525A priority patent/AU2002347525A1/en
Priority to JP2003551987A priority patent/JP4870330B2/en
Priority to AT02783457T priority patent/ATE478521T1/en
Priority to EP02783457A priority patent/EP1491042B1/en
Priority to KR1020047008957A priority patent/KR100923910B1/en
Publication of WO2003051046A2 publication Critical patent/WO2003051046A2/en
Publication of WO2003051046A3 publication Critical patent/WO2003051046A3/en

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/91—Television signal processing therefor
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/765—Interface circuits between an apparatus for recording and another apparatus

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Television Signal Processing For Recording (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Synchronizing For Television (AREA)
  • Control Of El Displays (AREA)
  • Television Systems (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Management Or Editing Of Information On Record Carriers (AREA)

Abstract

Content of multiple digital bit streams with essentially the same renderable content, and situated at mutually remote locations, are played back in unison. First, time is synchronized among the processors that participate in a synchronized viewing session by playing back respective streams. Second, the playbacks are content-wise aligned, by rewinding or fast forwarding, to effect overall a precisely synchronized presentation. The content-wise alignment is achieved by means of a status message between processors that contains information characteristic of the sender's bit stream. If any participant, performs a control function (e.g. rewind, fast forward, stop), all other participants follow synchronously. The processor that initiates the session is deemed the initiator, a role that is thereafter assumed by the participant that has last performed a control function. The initiator directs all participants, at session startup, upon execution of each control function, and periodically, to synchronize their playbacks to that of the initiator, whereby all playbacks are synchronized and maintain in synchronization.
PCT/IB2002/005019 2001-12-11 2002-11-20 Apparatus and method for synchronizing presentation from bit streams based on their content WO2003051046A2 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
DE60237403T DE60237403D1 (en) 2001-12-11 2002-11-20 DEVICE AND METHOD FOR CONTENT-BASED DISPLAY SYNCHRONIZATION OF BITSTRÖME
AU2002347525A AU2002347525A1 (en) 2001-12-11 2002-11-20 Apparatus and method for synchronizing presentation from bit streams based on their content
JP2003551987A JP4870330B2 (en) 2001-12-11 2002-11-20 Apparatus, method, and computer program for synchronizing display of renderable content of a digital bit stream
AT02783457T ATE478521T1 (en) 2001-12-11 2002-11-20 DEVICE AND METHOD FOR CONTENT-BASED DISPLAY SYNCHRONIZATION OF BIT STREAMS
EP02783457A EP1491042B1 (en) 2001-12-11 2002-11-20 Apparatus and method for synchronizing presentation from bit streams based on their content
KR1020047008957A KR100923910B1 (en) 2001-12-11 2002-11-20 Apparatus and method for synchronizing presentation from bit streams based on their content

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/014,225 2001-12-11
US10/014,225 US7269338B2 (en) 2001-12-11 2001-12-11 Apparatus and method for synchronizing presentation from bit streams based on their content

Publications (2)

Publication Number Publication Date
WO2003051046A2 WO2003051046A2 (en) 2003-06-19
WO2003051046A3 true WO2003051046A3 (en) 2003-12-31

Family

ID=21764208

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2002/005019 WO2003051046A2 (en) 2001-12-11 2002-11-20 Apparatus and method for synchronizing presentation from bit streams based on their content

Country Status (10)

Country Link
US (1) US7269338B2 (en)
EP (1) EP1491042B1 (en)
JP (1) JP4870330B2 (en)
KR (1) KR100923910B1 (en)
CN (1) CN1316819C (en)
AT (1) ATE478521T1 (en)
AU (1) AU2002347525A1 (en)
DE (1) DE60237403D1 (en)
ES (1) ES2351035T3 (en)
WO (1) WO2003051046A2 (en)

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Also Published As

Publication number Publication date
AU2002347525A1 (en) 2003-06-23
JP4870330B2 (en) 2012-02-08
WO2003051046A2 (en) 2003-06-19
KR20040071715A (en) 2004-08-12
ES2351035T3 (en) 2011-01-31
KR100923910B1 (en) 2009-10-28
US7269338B2 (en) 2007-09-11
DE60237403D1 (en) 2010-09-30
US20030156827A1 (en) 2003-08-21
CN1602628A (en) 2005-03-30
ATE478521T1 (en) 2010-09-15
JP2005512467A (en) 2005-04-28
AU2002347525A8 (en) 2003-06-23
EP1491042A2 (en) 2004-12-29
EP1491042B1 (en) 2010-08-18
CN1316819C (en) 2007-05-16

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