WO1998024037A3 - Method for securely triggering the playing of crippled local media through the web - Google Patents

Method for securely triggering the playing of crippled local media through the web Download PDF

Info

Publication number
WO1998024037A3
WO1998024037A3 PCT/US1997/020929 US9720929W WO9824037A3 WO 1998024037 A3 WO1998024037 A3 WO 1998024037A3 US 9720929 W US9720929 W US 9720929W WO 9824037 A3 WO9824037 A3 WO 9824037A3
Authority
WO
WIPO (PCT)
Prior art keywords
video
web
crippled
triggering
playing
Prior art date
Application number
PCT/US1997/020929
Other languages
French (fr)
Other versions
WO1998024037A9 (en
WO1998024037A2 (en
Inventor
Jie Feng
Kenneth G Mages
Original Assignee
Hyperlock Technologies Inc
Jie Feng
Kenneth G Mages
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 US08/756,162 external-priority patent/US5892825A/en
Priority claimed from US08/792,092 external-priority patent/US5937164A/en
Priority claimed from US08/872,082 external-priority patent/US6185306B1/en
Application filed by Hyperlock Technologies Inc, Jie Feng, Kenneth G Mages filed Critical Hyperlock Technologies Inc
Priority to CA002271012A priority Critical patent/CA2271012A1/en
Priority to AU52598/98A priority patent/AU5259898A/en
Priority to EP97947544A priority patent/EP0974217A2/en
Publication of WO1998024037A2 publication Critical patent/WO1998024037A2/en
Publication of WO1998024037A9 publication Critical patent/WO1998024037A9/en
Publication of WO1998024037A3 publication Critical patent/WO1998024037A3/en

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00Network architectures or network communication protocols for network security
    • H04L63/04Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks
    • H04L63/0428Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/10Protecting distributed programs or content, e.g. vending or licensing of copyrighted material ; Digital rights management [DRM]
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/00086Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/00086Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
    • G11B20/00137Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which result in a restriction to contents recorded on or reproduced from a record carrier to authorised users
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/00086Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
    • G11B20/00137Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which result in a restriction to contents recorded on or reproduced from a record carrier to authorised users
    • G11B20/00152Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which result in a restriction to contents recorded on or reproduced from a record carrier to authorised users involving a password
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/00086Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
    • G11B20/00137Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which result in a restriction to contents recorded on or reproduced from a record carrier to authorised users
    • G11B20/00159Parental control systems
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/00086Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
    • G11B20/0021Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/00086Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
    • G11B20/00572Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which change the format of the recording medium
    • G11B20/00615Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which change the format of the recording medium said format change concerning the logical format of the recording medium, e.g. the structure of sectors, blocks, or frames
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/00086Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
    • G11B20/0071Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving a purchase action
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00Network architectures or network communication protocols for network security
    • H04L63/06Network architectures or network communication protocols for network security for supporting key management in a packet data network
    • H04L63/061Network architectures or network communication protocols for network security for supporting key management in a packet data network for key exchange, e.g. in peer-to-peer networks
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00Network architectures or network communication protocols for network security
    • H04L63/08Network architectures or network communication protocols for network security for authentication of entities
    • H04L63/083Network architectures or network communication protocols for network security for authentication of entities using passwords
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/45Management operations performed by the client for facilitating the reception of or the interaction with the content or administrating data related to the end-user or to the client device itself, e.g. learning user preferences for recommending movies, resolving scheduling conflicts
    • H04N21/462Content or additional data management, e.g. creating a master electronic program guide from data received from the Internet and a Head-end, controlling the complexity of a video stream by scaling the resolution or bit-rate based on the client capabilities
    • H04N21/4622Retrieving content or additional data from different sources, e.g. from a broadcast channel and the Internet
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/47End-user applications
    • H04N21/478Supplemental services, e.g. displaying phone caller identification, shopping application
    • H04N21/4782Web browsing, e.g. WebTV
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F2211/00Indexing scheme relating to details of data-processing equipment not covered by groups G06F3/00 - G06F13/00
    • G06F2211/007Encryption, En-/decode, En-/decipher, En-/decypher, Scramble, (De-)compress

Abstract

A method of transmitting protected video and/or graphic data over the Internet from a Web site, by encrypting the video and/or graphic data and storing it at a Web site associated with a server, and by encrypting a video player and storing it at the Web site. Both are then downloaded (70) to a requesting computer via the Internet or Intranet. The requesting (72) computer decrypts the video and/or graphic data and video player via a previously supplied decryption key, so that the video may be played back by the decrypted player.
PCT/US1997/020929 1996-11-25 1997-11-17 Method for securely triggering the playing of crippled local media through the web WO1998024037A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CA002271012A CA2271012A1 (en) 1996-11-25 1997-11-17 Method for securely triggering the playing of crippled local media through the web
AU52598/98A AU5259898A (en) 1996-11-25 1997-11-17 Method of secure server control of local media via a trigger through a network for instant local access of encrypted data on local media
EP97947544A EP0974217A2 (en) 1996-11-25 1997-11-17 Method of secure server control of local media via a trigger through a network for instant local access of encrypted data on local media

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
US08/756,162 US5892825A (en) 1996-05-15 1996-11-25 Method of secure server control of local media via a trigger through a network for instant local access of encrypted data on local media
US08/756,162 1996-11-25
US08/792,092 US5937164A (en) 1995-12-07 1997-01-31 Method and apparatus of secure server control of local media via a trigger through a network for instant local access of encrypted data on local media within a platform independent networking system
US08/792,092 1997-01-31
US08/872,082 US6185306B1 (en) 1995-12-07 1997-06-10 Method of secure server control of local media via a trigger through a network for local access of encrypted data on an internet webpage
US08/872,082 1997-06-10
US91179697A 1997-08-15 1997-08-15
US08/911,796 1997-08-15

Publications (3)

Publication Number Publication Date
WO1998024037A2 WO1998024037A2 (en) 1998-06-04
WO1998024037A9 WO1998024037A9 (en) 1998-09-17
WO1998024037A3 true WO1998024037A3 (en) 1998-12-03

Family

ID=27505674

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1997/020929 WO1998024037A2 (en) 1996-11-25 1997-11-17 Method for securely triggering the playing of crippled local media through the web

Country Status (4)

Country Link
EP (1) EP0974217A2 (en)
AU (1) AU5259898A (en)
CA (1) CA2271012A1 (en)
WO (1) WO1998024037A2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9189605B2 (en) 2005-04-22 2015-11-17 Microsoft Technology Licensing, Llc Protected computing environment

Families Citing this family (40)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6226618B1 (en) * 1998-08-13 2001-05-01 International Business Machines Corporation Electronic content delivery system
WO2000052898A2 (en) * 1999-03-02 2000-09-08 Message Bay, Inc. Method and apparatus for implementing data communications via a web-based communications system
US7103574B1 (en) 1999-03-27 2006-09-05 Microsoft Corporation Enforcement architecture and method for digital rights management
US6829708B1 (en) 1999-03-27 2004-12-07 Microsoft Corporation Specifying security for an element by assigning a scaled value representative of the relative security thereof
US6973444B1 (en) 1999-03-27 2005-12-06 Microsoft Corporation Method for interdependently validating a digital content package and a corresponding digital license
US7319759B1 (en) 1999-03-27 2008-01-15 Microsoft Corporation Producing a new black box for a digital rights management (DRM) system
US7073063B2 (en) 1999-03-27 2006-07-04 Microsoft Corporation Binding a digital license to a portable device or the like in a digital rights management (DRM) system and checking out/checking in the digital license to/from the portable device or the like
US7024393B1 (en) 1999-03-27 2006-04-04 Microsoft Corporation Structural of digital rights management (DRM) system
US7383205B1 (en) 1999-03-27 2008-06-03 Microsoft Corporation Structure of a digital content package
US7136838B1 (en) 1999-03-27 2006-11-14 Microsoft Corporation Digital license and method for obtaining/providing a digital license
US20020019814A1 (en) 2001-03-01 2002-02-14 Krishnamurthy Ganesan Specifying rights in a digital rights license according to events
US6816596B1 (en) 2000-01-14 2004-11-09 Microsoft Corporation Encrypting a digital object based on a key ID selected therefor
GB2364139B (en) * 1999-12-22 2004-05-26 Ibm A security mechanism providing access control for locally-held data
US7353209B1 (en) 2000-01-14 2008-04-01 Microsoft Corporation Releasing decrypted digital content to an authenticated path
US6772340B1 (en) 2000-01-14 2004-08-03 Microsoft Corporation Digital rights management system operating on computing device and having black box tied to computing device
US6912528B2 (en) 2000-01-18 2005-06-28 Gregg S. Homer Rechargeable media distribution and play system
DE10006838A1 (en) * 2000-02-12 2001-08-30 Bernd Joachim Siegle Digitized film distribution in Internet/data network, involves transmitting film from user to PC or other receiver
GB2366162A (en) * 2000-08-15 2002-02-27 Chargenet Ltd Controlling access to a telecommunicated data file
US7010808B1 (en) 2000-08-25 2006-03-07 Microsoft Corporation Binding digital content to a portable storage device or the like in a digital rights management (DRM) system
US7039615B1 (en) 2000-09-28 2006-05-02 Microsoft Corporation Retail transactions involving digital content in a digital rights management (DRM) system
US7149722B1 (en) 2000-09-28 2006-12-12 Microsoft Corporation Retail transactions involving distributed and super-distributed digital content in a digital rights management (DRM) system
EP1215905B2 (en) 2000-12-15 2010-04-21 Panasonic Corporation Reception apparatus having a storage unit for recording a scrambled broadcast signal and broadcast apparatus for scrambling a signal to be broadcast, and associated methods
AU2002215750A1 (en) * 2000-12-15 2002-06-24 J Ve Media Technologies Inc. Media files with additional content
US7239708B2 (en) 2001-06-27 2007-07-03 Microsoft Corporation Protecting decrypted compressed content and decrypted decompressed content at a digital rights management client
US6948073B2 (en) 2001-06-27 2005-09-20 Microsoft Corporation Protecting decrypted compressed content and decrypted decompressed content at a digital rights management client
GB2381087A (en) * 2001-10-15 2003-04-23 Simon Alan Spacey Method for the secure distribution and use of electronic media
US7107461B2 (en) * 2002-06-03 2006-09-12 Sony Computer Entertainment America, Inc. Methods and apparatus for customizing a rewritable storage medium
CN1816865B (en) * 2003-05-27 2010-05-12 Lg电子株式会社 Recording medium, and recording and reproducing methods and apparatuses
US8103592B2 (en) 2003-10-08 2012-01-24 Microsoft Corporation First computer process and second computer process proxy-executing code on behalf of first process
US7979911B2 (en) 2003-10-08 2011-07-12 Microsoft Corporation First computer process and second computer process proxy-executing code from third computer process on behalf of first process
US8347078B2 (en) 2004-10-18 2013-01-01 Microsoft Corporation Device certificate individualization
US8336085B2 (en) 2004-11-15 2012-12-18 Microsoft Corporation Tuning product policy using observed evidence of customer behavior
US7549051B2 (en) 2005-03-10 2009-06-16 Microsoft Corporation Long-life digital certification for publishing long-life digital content or the like in content rights management system or the like
US8738536B2 (en) 2005-04-14 2014-05-27 Microsoft Corporation Licensing content for use on portable device
US7856404B2 (en) 2005-04-14 2010-12-21 Microsoft Corporation Playlist burning in rights-management context
US9507919B2 (en) 2005-04-22 2016-11-29 Microsoft Technology Licensing, Llc Rights management system for streamed multimedia content
US9363481B2 (en) 2005-04-22 2016-06-07 Microsoft Technology Licensing, Llc Protected media pipeline
US7693280B2 (en) 2005-04-22 2010-04-06 Microsoft Corporation Rights management system for streamed multimedia content
US8290874B2 (en) 2005-04-22 2012-10-16 Microsoft Corporation Rights management system for streamed multimedia content
CN116506850B (en) * 2023-06-27 2023-10-03 中国电信股份有限公司 Network access method, device, wireless station, target server and storage medium

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4930158A (en) * 1987-09-02 1990-05-29 Vogel Peter S Selective video playing system
US5319705A (en) * 1992-10-21 1994-06-07 International Business Machines Corporation Method and system for multimedia access control enablement
EP0665486A2 (en) * 1994-01-27 1995-08-02 AT&T Corp. Method of protecting electronically published materials using cryptographic protocols
EP0673034A2 (en) * 1994-03-19 1995-09-20 Sony Corporation Optical disk and method and apparatus for recording and then playing information back from that disk
US5457746A (en) * 1993-09-14 1995-10-10 Spyrus, Inc. System and method for access control for portable data storage media
EP0715247A1 (en) * 1994-11-23 1996-06-05 Xerox Corporation System for controlling the distribution and use of digital works using digital tickets
EP0717338A1 (en) * 1994-12-16 1996-06-19 AT&T Corp. Method of protecting copyright
US5555303A (en) * 1992-11-17 1996-09-10 Stambler; Leon Secure transaction system and method utilized therein
WO1996034334A1 (en) * 1995-04-27 1996-10-31 Casio Computer Co., Ltd. Device for executing enciphered program
US5576843A (en) * 1993-10-29 1996-11-19 Time Warner Entertainment Co., L.P. System and method for controlling play of multiple dialog audio tracks of a software carrier

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4930158A (en) * 1987-09-02 1990-05-29 Vogel Peter S Selective video playing system
US5319705A (en) * 1992-10-21 1994-06-07 International Business Machines Corporation Method and system for multimedia access control enablement
US5555303A (en) * 1992-11-17 1996-09-10 Stambler; Leon Secure transaction system and method utilized therein
US5457746A (en) * 1993-09-14 1995-10-10 Spyrus, Inc. System and method for access control for portable data storage media
US5576843A (en) * 1993-10-29 1996-11-19 Time Warner Entertainment Co., L.P. System and method for controlling play of multiple dialog audio tracks of a software carrier
EP0665486A2 (en) * 1994-01-27 1995-08-02 AT&T Corp. Method of protecting electronically published materials using cryptographic protocols
EP0673034A2 (en) * 1994-03-19 1995-09-20 Sony Corporation Optical disk and method and apparatus for recording and then playing information back from that disk
EP0715247A1 (en) * 1994-11-23 1996-06-05 Xerox Corporation System for controlling the distribution and use of digital works using digital tickets
EP0717338A1 (en) * 1994-12-16 1996-06-19 AT&T Corp. Method of protecting copyright
WO1996034334A1 (en) * 1995-04-27 1996-10-31 Casio Computer Co., Ltd. Device for executing enciphered program
EP0768601A1 (en) * 1995-04-27 1997-04-16 Casio Computer Company Limited Device for executing enciphered program

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9189605B2 (en) 2005-04-22 2015-11-17 Microsoft Technology Licensing, Llc Protected computing environment

Also Published As

Publication number Publication date
EP0974217A2 (en) 2000-01-26
CA2271012A1 (en) 1998-06-04
WO1998024037A2 (en) 1998-06-04
AU5259898A (en) 1998-06-22

Similar Documents

Publication Publication Date Title
WO1998024037A3 (en) Method for securely triggering the playing of crippled local media through the web
US20190340334A1 (en) Method and system for ensuring sequential playback of digital media
CA2343388A1 (en) Cloning protection scheme for a digital information playback device
CA2292667A1 (en) Apparatus and method of reading a program into a processor
EP2088705B1 (en) System and method for protecting data streams in hardware components
EP0901060A3 (en) Secure data control apparatus and method
WO2001097480A3 (en) System and method for controlling the access to digital works through a network
WO2002001329A3 (en) Method and system for limiting the use of user-specific software features
WO2001089195A3 (en) System and method for secure delivery of rich media
US5982889A (en) Method and apparatus for distributing information products
EP0874299A3 (en) Data transmission, reception, encryption, decryption and recording
KR960706264A (en) Downstream control of bulletin board
CA2272921A1 (en) Method of processing encrypted video data for generating decrypted program data
EP1039462A3 (en) Processing method and apparatus for encrypted data transfer
WO2004084020A3 (en) Secure streaming container
EP1176826A3 (en) Super encrypted storage and retrieval of media programs in a hard-paired receiver and storage device
EP1176827A3 (en) Super encrypted storage and retrieval of media programs with smartcard generated keys
NZ513745A (en) Method and apparatus for encrypted transmission
WO2001020836A3 (en) Ephemeral decryptability
WO1999053689A8 (en) Conditional access via secure logging with simplified key management
WO2005040958A3 (en) Method and system for content distribution
EP1154348A3 (en) File management apparatus
DE59909361D1 (en) METHOD AND DEVICE FOR GENERATING A DATA STREAM AND METHOD AND DEVICE FOR PLAYING A DATA STREAM
EP1176754A3 (en) System, method and apparatus for key distribution and program providing medium
AU3877997A (en) Use of an encryption server for encrypting messages

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A2

Designated state(s): AL AM AT AU AZ BB BG BR BY CA CH CN CZ DE DK EE ES FI GB GE HU IL IS JP KE KG KP KR KZ LK LR LS LT LU LV MD MG MK MN MW MX NO NZ PL PT RO RU SD SE SG SI SK TJ TM TR TT UA UG US UZ VN AM AZ BY KG KZ MD RU TJ TM

AL Designated countries for regional patents

Kind code of ref document: A2

Designated state(s): GH KE LS MW SD SZ UG ZW AT BE CH DE DK ES FI FR GB GR IE IT LU MC NL PT SE BF BJ CF CG CI

DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
COP Corrected version of pamphlet

Free format text: PAGES 107 AND 110, CLAIMS, REPLACED BY NEW PAGES 107 AND 110

121 Ep: the epo has been informed by wipo that ep was designated in this application
AK Designated states

Kind code of ref document: A3

Designated state(s): AL AM AT AU AZ BB BG BR BY CA CH CN CZ DE DK EE ES FI GB GE HU IL IS JP KE KG KP KR KZ LK LR LS LT LU LV MD MG MK MN MW MX NO NZ PL PT RO RU SD SE SG SI SK TJ TM TR TT UA UG US UZ VN AM AZ BY KG KZ MD RU TJ TM

AL Designated countries for regional patents

Kind code of ref document: A3

Designated state(s): GH KE LS MW SD SZ UG ZW AT BE CH DE DK ES FI FR GB GR IE IT LU MC NL PT SE BF BJ CF CG CI

ENP Entry into the national phase

Ref document number: 2271012

Country of ref document: CA

NENP Non-entry into the national phase

Ref country code: JP

Ref document number: 1998524706

Format of ref document f/p: F

WWE Wipo information: entry into national phase

Ref document number: 1997947544

Country of ref document: EP

REG Reference to national code

Ref country code: DE

Ref legal event code: 8642

WWP Wipo information: published in national office

Ref document number: 1997947544

Country of ref document: EP

WWW Wipo information: withdrawn in national office

Ref document number: 1997947544

Country of ref document: EP