DE69637814D1 - Programm-Statistisch-Multiplexierungsverfahren und -vorrichtung auf der Basis vom Füllungsgrad von Decoder-Puffer-Speichern - Google Patents

Programm-Statistisch-Multiplexierungsverfahren und -vorrichtung auf der Basis vom Füllungsgrad von Decoder-Puffer-Speichern

Info

Publication number
DE69637814D1
DE69637814D1 DE69637814T DE69637814T DE69637814D1 DE 69637814 D1 DE69637814 D1 DE 69637814D1 DE 69637814 T DE69637814 T DE 69637814T DE 69637814 T DE69637814 T DE 69637814T DE 69637814 D1 DE69637814 D1 DE 69637814D1
Authority
DE
Germany
Prior art keywords
filling
degree
apparatus based
multiplexing method
buffer memories
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 - Lifetime
Application number
DE69637814T
Other languages
English (en)
Inventor
Paul Shen
Edward A Krause
Adam S Tom
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.)
Arris Technology Inc
Original Assignee
Imedia 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 Imedia Corp filed Critical Imedia Corp
Application granted granted Critical
Publication of DE69637814D1 publication Critical patent/DE69637814D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/434—Disassembling of a multiplex stream, e.g. demultiplexing audio and video streams, extraction of additional data from a video stream; Remultiplexing of multiplex streams; Extraction or processing of SI; Disassembling of packetised elementary stream
    • H04N21/4347—Demultiplexing of several video streams
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/236—Assembling of a multiplex stream, e.g. transport stream, by combining a video stream with other content or additional data, e.g. inserting a URL [Uniform Resource Locator] into a video stream, multiplexing software data into a video stream; Remultiplexing of multiplex streams; Insertion of stuffing bits into the multiplex stream, e.g. to obtain a constant bit-rate; Assembling of a packetised elementary stream
    • H04N21/2365—Multiplexing of several video streams
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/16—Analogue secrecy systems; Analogue subscription systems
    • H04N7/173—Analogue secrecy systems; Analogue subscription systems with two-way working, e.g. subscriber sending a programme selection signal
    • H04N7/17309—Transmission or handling of upstream communications
    • H04N7/17336—Handling of requests in head-ends

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Time-Division Multiplex Systems (AREA)
DE69637814T 1995-11-21 1996-11-08 Programm-Statistisch-Multiplexierungsverfahren und -vorrichtung auf der Basis vom Füllungsgrad von Decoder-Puffer-Speichern Expired - Lifetime DE69637814D1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/560,219 US5862140A (en) 1995-11-21 1995-11-21 Method and apparatus for multiplexing video programs for improved channel utilization
PCT/US1996/017990 WO1997019561A1 (en) 1995-11-21 1996-11-08 Method and apparatus for multiplexing video programs

Publications (1)

Publication Number Publication Date
DE69637814D1 true DE69637814D1 (de) 2009-03-05

Family

ID=24236862

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69637814T Expired - Lifetime DE69637814D1 (de) 1995-11-21 1996-11-08 Programm-Statistisch-Multiplexierungsverfahren und -vorrichtung auf der Basis vom Füllungsgrad von Decoder-Puffer-Speichern

Country Status (7)

Country Link
US (1) US5862140A (de)
EP (1) EP0862837B1 (de)
JP (1) JP2000500634A (de)
AU (1) AU7725296A (de)
CA (1) CA2237689C (de)
DE (1) DE69637814D1 (de)
WO (1) WO1997019561A1 (de)

Families Citing this family (70)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7917922B1 (en) 1995-06-08 2011-03-29 Schwab Barry H Video input switching and signal processing apparatus
US6084910A (en) * 1997-01-31 2000-07-04 Hughes Electronics Corporation Statistical multiplexer for video signals
US6097435A (en) * 1997-01-31 2000-08-01 Hughes Electronics Corporation Video system with selectable bit rate reduction
US6005620A (en) * 1997-01-31 1999-12-21 Hughes Electronics Corporation Statistical multiplexer for live and pre-compressed video
US6188436B1 (en) * 1997-01-31 2001-02-13 Hughes Electronics Corporation Video broadcast system with video data shifting
US6078958A (en) * 1997-01-31 2000-06-20 Hughes Electronics Corporation System for allocating available bandwidth of a concentrated media output
JP3765512B2 (ja) * 1997-03-17 2006-04-12 富士通株式会社 固定長セル伝送装置並びに固定長セル送信装置及び固定長セル受信装置
US6052384A (en) * 1997-03-21 2000-04-18 Scientific-Atlanta, Inc. Using a receiver model to multiplex variable-rate bit streams having timing constraints
US6337715B1 (en) * 1997-07-04 2002-01-08 Matsushita Electric Industrial Co., Ltd. Broadcasting reception apparatus and data broadcasting method
US6259733B1 (en) * 1998-06-16 2001-07-10 General Instrument Corporation Pre-processing of bit rate allocation in a multi-channel video encoder
US6289129B1 (en) * 1998-06-19 2001-09-11 Motorola, Inc. Video rate buffer for use with push dataflow
US8151295B1 (en) 2000-08-31 2012-04-03 Prime Research Alliance E., Inc. Queue based advertisement scheduling and sales
US20020083441A1 (en) 2000-08-31 2002-06-27 Flickinger Gregory C. Advertisement filtering and storage for targeted advertisement systems
US7185353B2 (en) 2000-08-31 2007-02-27 Prime Research Alliance E., Inc. System and method for delivering statistically scheduled advertisements
US7068724B1 (en) * 1999-10-20 2006-06-27 Prime Research Alliance E., Inc. Method and apparatus for inserting digital media advertisements into statistical multiplexed streams
US20020087973A1 (en) * 2000-12-28 2002-07-04 Hamilton Jeffrey S. Inserting local signals during MPEG channel changes
US20020083445A1 (en) * 2000-08-31 2002-06-27 Flickinger Gregory C. Delivering targeted advertisements to the set-top-box
US6122660A (en) * 1999-02-22 2000-09-19 International Business Machines Corporation Method for distributing digital TV signal and selection of content
US6490298B1 (en) 1999-02-26 2002-12-03 Harmonic Inc. Apparatus and methods of multiplexing data to a communication channel
US7016337B1 (en) 1999-03-02 2006-03-21 Cisco Technology, Inc. System and method for multiple channel statistical re-multiplexing
US7593433B1 (en) 1999-03-02 2009-09-22 Cisco Technology, Inc. System and method for multiple channel statistical re-multiplexing
US6996098B2 (en) * 1999-03-31 2006-02-07 Sedna Patent Services, Llc Method and apparatus for injecting information assets into a content stream
DE60039861D1 (de) * 1999-04-20 2008-09-25 Samsung Electronics Co Ltd Werbeverwaltungssystem für digitale videoströme
EP1177674A4 (de) 1999-05-10 2004-12-08 Samsung Electronics Co Ltd Werbeuntergruppen für digitale ströme
US6795506B1 (en) * 1999-10-05 2004-09-21 Cisco Technology, Inc. Methods and apparatus for efficient scheduling and multiplexing
DE60134960D1 (de) * 2000-01-13 2008-09-04 Broadband Royalty Corp Verfahren und vorrichtung zur identifizierung eineein teilnehmerendgerät
US7050496B2 (en) * 2000-02-15 2006-05-23 4Nsys Co., Ltd. Multi-channel image encoding method and system
EP1139665A1 (de) * 2000-03-29 2001-10-04 Deutsche Thomson-Brandt Gmbh Verfahren und Gerät für die Ausgabeverzögerungsänderung während der Video- oder Tonkodierung
US20040148625A1 (en) 2000-04-20 2004-07-29 Eldering Charles A Advertisement management system for digital video streams
US6731605B1 (en) 2000-06-19 2004-05-04 Sharp Laboratories Of America, Inc. Prioritized optimal server side bandwidth allocation in a multimedia session with push and pull sources
US6594316B2 (en) 2000-12-12 2003-07-15 Scientific-Atlanta, Inc. Method and apparatus for adaptive bit rate control in an asynchronized encoding system
US6987728B2 (en) 2001-01-23 2006-01-17 Sharp Laboratories Of America, Inc. Bandwidth allocation system
US8091112B1 (en) * 2001-02-28 2012-01-03 Keen Personal Technologies, Inc. System and a method for transmitting and receiving a program with improved efficiency
US7660328B1 (en) 2001-04-03 2010-02-09 Bigband Networks Inc. Method and system for generating, transmitting and utilizing bit rate conversion information
US6937619B1 (en) 2001-05-29 2005-08-30 Bigband Networks, Inc. Method and system for comparison-based prioritized bit rate conversion
US7058087B1 (en) 2001-05-29 2006-06-06 Bigband Networks, Inc. Method and system for prioritized bit rate conversion
US6959042B1 (en) 2001-10-01 2005-10-25 Cisco Technology, Inc. Methods and apparatus for measuring compressed video signals and applications to statistical remultiplexing
US7173947B1 (en) 2001-11-28 2007-02-06 Cisco Technology, Inc. Methods and apparatus to evaluate statistical remultiplexer performance
US7292602B1 (en) 2001-12-27 2007-11-06 Cisco Techonology, Inc. Efficient available bandwidth usage in transmission of compressed video data
US7313520B2 (en) * 2002-03-20 2007-12-25 The Directv Group, Inc. Adaptive variable bit rate audio compression encoding
US7170936B2 (en) * 2002-03-28 2007-01-30 Intel Corporation Transcoding apparatus, system, and method
US7333515B1 (en) 2002-08-06 2008-02-19 Cisco Technology, Inc. Methods and apparatus to improve statistical remultiplexer performance by use of predictive techniques
US7529276B1 (en) 2002-09-03 2009-05-05 Cisco Technology, Inc. Combined jitter and multiplexing systems and methods
AU2003291193A1 (en) * 2002-11-27 2004-06-23 Rgb Media, Inc. Apparatus and method for dynamic channel mapping and optimized scheduling of data packets
US7046677B2 (en) * 2002-11-27 2006-05-16 Rgb Networks, Inc. Method and apparatus for time-multiplexed processing of multiple digital video programs
CA2523343A1 (en) * 2003-04-21 2004-11-04 Rgb Networks, Inc. Time-multiplexed multi-program encryption system
CA2537293C (en) * 2003-08-29 2014-04-01 Rgb Networks, Inc. Advanced, adaptive video multiplexer system
US7649938B2 (en) * 2004-10-21 2010-01-19 Cisco Technology, Inc. Method and apparatus of controlling a plurality of video surveillance cameras
US7602820B2 (en) 2005-02-01 2009-10-13 Time Warner Cable Inc. Apparatus and methods for multi-stage multiplexing in a network
US8238376B2 (en) * 2005-04-13 2012-08-07 Sony Corporation Synchronized audio/video decoding for network devices
US20070022459A1 (en) 2005-07-20 2007-01-25 Gaebel Thomas M Jr Method and apparatus for boundary-based network operation
US20070036177A1 (en) * 2005-08-12 2007-02-15 Sarnoff Corporation Method and apparatus for managing delivery of video over a digital subscriber line
US7889765B2 (en) * 2005-11-30 2011-02-15 Time Warner Cable Inc. Apparatus and methods for utilizing variable rate program streams in a network
US7885189B2 (en) * 2006-09-20 2011-02-08 Rgb Networks, Inc. Methods and apparatus for rate estimation and predictive rate control
US20080098447A1 (en) * 2006-10-19 2008-04-24 Moshe Yannai Programming of informational channels for digital video broadcasting
US20080144505A1 (en) * 2006-11-03 2008-06-19 Michael Anthony Isnardi Method and Apparatus for Bitrate Reduction
KR101226178B1 (ko) * 2007-03-27 2013-01-24 삼성전자주식회사 비디오 데이터 디스플레이 방법 및 장치
US8625607B2 (en) 2007-07-24 2014-01-07 Time Warner Cable Enterprises Llc Generation, distribution and use of content metadata in a network
JP2009060444A (ja) * 2007-08-31 2009-03-19 Canon Inc 画像復号装置、画像復号方法及び記録装置
US8300541B2 (en) * 2008-02-19 2012-10-30 Time Warner Cable Inc. Apparatus and methods for utilizing statistical multiplexing to ensure quality of service in a network
US20100333149A1 (en) * 2009-06-24 2010-12-30 Rgb Networks, Inc. Delivery of pre-statistically multiplexed streams in a vod system
US9237381B2 (en) 2009-08-06 2016-01-12 Time Warner Cable Enterprises Llc Methods and apparatus for local channel insertion in an all-digital content distribution network
US20110053623A1 (en) * 2009-09-03 2011-03-03 Cisco Technology, Inc. Hfc banding for a virtual service group
US9635421B2 (en) 2009-11-11 2017-04-25 Time Warner Cable Enterprises Llc Methods and apparatus for audience data collection and analysis in a content delivery network
US8868575B2 (en) * 2010-01-13 2014-10-21 International Business Machines Corporation Method and system for transformation of logical data objects for storage
US10334288B2 (en) * 2010-06-15 2019-06-25 Avago Technologies International Sales Pte. Limited Method and system for zero overhead parallel entropy decoding
US8930979B2 (en) 2010-11-11 2015-01-06 Time Warner Cable Enterprises Llc Apparatus and methods for identifying and characterizing latency in a content delivery network
US10148623B2 (en) 2010-11-12 2018-12-04 Time Warner Cable Enterprises Llc Apparatus and methods ensuring data privacy in a content distribution network
US8514893B2 (en) * 2011-01-12 2013-08-20 Videopropulsion Interactive, Inc. Digital video apparatus for multiplexing single program transport streams into a multiple program transport stream
US20140328384A1 (en) * 2013-05-02 2014-11-06 Magnum Semiconductor, Inc. Methods and apparatuses including a statistical multiplexer with global rate control

Family Cites Families (44)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4477900A (en) * 1980-04-30 1984-10-16 Broadcom, Incorporated Successive frame digital multiplexer with increased channel capacity
US4494232A (en) * 1981-12-04 1985-01-15 Racal-Milgo, Inc. Statistical multiplexer with dynamic bandwidth allocation for asynchronous and synchronous channels
US4455649A (en) * 1982-01-15 1984-06-19 International Business Machines Corporation Method and apparatus for efficient statistical multiplexing of voice and data signals
DE3333775A1 (de) * 1983-09-19 1985-04-18 Siemens AG, 1000 Berlin und 8000 München Digitalsignal-kanalverteiler
JPS6392140A (ja) * 1986-10-06 1988-04-22 Nippon Telegr & Teleph Corp <Ntt> 可変長パケツト通信方式
JPS63222592A (ja) * 1987-03-12 1988-09-16 Toshiba Corp 符号化復号化装置
US4975771A (en) * 1989-02-10 1990-12-04 Kassatly Salim A Method and apparatus for TV broadcasting
US5146564A (en) * 1989-02-03 1992-09-08 Digital Equipment Corporation Interface between a system control unit and a service processing unit of a digital computer
CA2000156C (en) * 1989-02-14 1995-05-02 Kohtaro Asai Picture signal encoding and decoding apparatus
US5115309A (en) * 1990-09-10 1992-05-19 At&T Bell Laboratories Method and apparatus for dynamic channel bandwidth allocation among multiple parallel video coders
JP3070110B2 (ja) * 1991-02-27 2000-07-24 日本電気株式会社 動画像信号の伝送システム
US5159447A (en) * 1991-05-23 1992-10-27 At&T Bell Laboratories Buffer control for variable bit-rate channel
GB2289195B (en) * 1991-08-19 1996-03-06 Sony Corp Multiple data separating
US5144425A (en) * 1991-08-26 1992-09-01 General Electric Company Apparatus for hierarchically dividing video signals
JP2861518B2 (ja) * 1991-09-03 1999-02-24 日本電気株式会社 適応多重化方式
JPH0568243A (ja) * 1991-09-09 1993-03-19 Hitachi Ltd 可変長符号化制御方式
JPH0595340A (ja) * 1991-10-01 1993-04-16 Nec Corp マルチメデイア多重化システム
US5216503A (en) * 1991-12-24 1993-06-01 General Instrument Corporation Statistical multiplexer for a multichannel image compression system
DE69222754T2 (de) * 1992-03-27 1998-02-26 Alsthom Cge Alcatel Videodekoder
US5241383A (en) * 1992-05-13 1993-08-31 Bell Communications Research, Inc. Pseudo-constant bit rate video coding with quantization parameter adjustment
US5291281A (en) * 1992-06-18 1994-03-01 General Instrument Corporation Adaptive coding level control for video compression systems
US5287182A (en) * 1992-07-02 1994-02-15 At&T Bell Laboratories Timing recovery for variable bit-rate video on asynchronous transfer mode (ATM) networks
US5355372A (en) * 1992-08-19 1994-10-11 Nec Usa, Inc. Threshold-based load balancing in ATM switches with parallel switch planes related applications
US5289470A (en) * 1992-12-14 1994-02-22 International Business Machines Corp. Flexible scheme for buffer space allocation in networking devices
JPH06303282A (ja) * 1993-04-13 1994-10-28 Hitachi Ltd 情報伝送系における情報処理方式
US5457688A (en) * 1993-05-07 1995-10-10 The United States Of America As Represented By The Secretary Of The Navy Signal processor having multiple paralleled data acquisition channels and an arbitration unit for extracting formatted data therefrom for transmission
EP0625857B1 (de) * 1993-05-19 1998-06-24 ALCATEL BELL Naamloze Vennootschap Videoserver
JP3085024B2 (ja) * 1993-06-01 2000-09-04 松下電器産業株式会社 画像再圧縮器及び画像記録装置
EP0653885A1 (de) * 1993-11-17 1995-05-17 ALCATEL BELL Naamloze Vennootschap Video-Server
EP0661885A1 (de) * 1993-12-28 1995-07-05 Canon Kabushiki Kaisha Bildverarbeitungsverfahren und Vorrichtung zur Umwandlung von in verschiedenen Formaten codierten Daten
US5550590A (en) * 1994-03-04 1996-08-27 Kokusai Denshin Denwa Kabushiki Kaisha Bit rate controller for multiplexer of encoded video
WO1995026103A1 (en) * 1994-03-18 1995-09-28 Micropolis Corporation On-demand video server system
US5566174A (en) * 1994-04-08 1996-10-15 Philips Electronics North America Corporation MPEG information signal conversion system
KR100314329B1 (ko) * 1994-04-20 2001-12-28 크리트먼 어윈 엠 일정비트율엔코더를이용하는멀티플렉서
US5506844A (en) * 1994-05-20 1996-04-09 Compression Labs, Inc. Method for configuring a statistical multiplexer to dynamically allocate communication channel bandwidth
EP0690626A2 (de) * 1994-06-30 1996-01-03 AT&T Corp. System zur Speicherung und Wiedergabe segmentierter Videodaten
US5434848A (en) * 1994-07-28 1995-07-18 International Business Machines Corporation Traffic management in packet communications networks
US5603058A (en) * 1994-09-08 1997-02-11 International Business Machines Corporation Video optimized media streamer having communication nodes received digital data from storage node and transmitted said data to adapters for generating isochronous digital data streams
IT1266945B1 (it) * 1994-09-29 1997-01-21 Cselt Centro Studi Lab Telecom Procedimento di multiplazione per flussi di segnali audiovisivi codificati secondo lo standard mpeg1.
US5568476A (en) * 1994-10-26 1996-10-22 3Com Corporation Method and apparatus for avoiding packet loss on a CSMA/CD-type local area network using receive-sense-based jam signal
US5687095A (en) * 1994-11-01 1997-11-11 Lucent Technologies Inc. Video transmission rate matching for multimedia communication systems
US5541919A (en) * 1994-12-19 1996-07-30 Motorola, Inc. Multimedia multiplexing device and method using dynamic packet segmentation
US5691986A (en) * 1995-06-07 1997-11-25 Hitachi America, Ltd. Methods and apparatus for the editing and insertion of data into an encoded bitstream
US5640388A (en) * 1995-12-21 1997-06-17 Scientific-Atlanta, Inc. Method and apparatus for removing jitter and correcting timestamps in a packet stream

Also Published As

Publication number Publication date
JP2000500634A (ja) 2000-01-18
US5862140A (en) 1999-01-19
AU7725296A (en) 1997-06-11
EP0862837A1 (de) 1998-09-09
WO1997019561A1 (en) 1997-05-29
CA2237689C (en) 2004-01-20
EP0862837B1 (de) 2009-01-14
CA2237689A1 (en) 1997-05-29

Similar Documents

Publication Publication Date Title
DE69637814D1 (de) Programm-Statistisch-Multiplexierungsverfahren und -vorrichtung auf der Basis vom Füllungsgrad von Decoder-Puffer-Speichern
DE69533250D1 (de) Elektrisch löschbares nicht-flüchtiges Speicherbauteil und Verfahren zur Herstellung desselben
DE69635318D1 (de) Injektionsvorrichtung für tröpfchenförmige Flüssigkeit
DE69615278D1 (de) SDRAM-Datenzuweisungsanordnung und -verfahren
NL194776B (nl) Plantenvermeerderingsinrichting en werkwijze.
BR9605916A (pt) Aparelho e aparelho de sintonizaçao
KR950700706A (ko) 척추 접골 장치
NO961793D0 (no) Brönnrensesystem og fremgangsmåte
NO971236D0 (no) Flytende anordning og fremgangsmåte for fremstilling av anordningen
DE69633011D1 (de) Polyesteretheramidecopolymer enthaltende dilationsballone
FI940870A (fi) Puhdistusmenetelmä ja -laite
BR9407089A (pt) Moega e método
DE69635587D1 (de) Ultraschallvorrichtung zum feststellen von knocheneigenschaften
DE69610763T2 (de) Flüssigkeitenabgabevorrichtung und -verfahren
KR970005038A (ko) 근경조식방법과 그 장치
DE69022665T2 (de) Speichereffizientes Gerät und Verfahren für eine Bild-im-Bild-Anzeige.
DK0775635T3 (da) Væskedoserings- og påfyldningsapparat
KR950702724A (ko) 물리량 해석방법 및 그 장치
ITGE940100A0 (it) Procedimento e dispositivo per la produzione di un filo ritorto.
DE69129524T2 (de) Gerät zur Speicheradressierung
DE69431328T2 (de) Ausgabeverfahren und -gerät
ITGE950083A0 (it) Metodo e dispositivo per la produzione di un filo ritorto.
DE69212329T2 (de) Ultraschallunterstützte beschichtungsvorrichtung und -verfahren
DE69728931D1 (de) Speicherabbildungsverfahren und -vorrichtung
KR970000253A (ko) 탈취방법과 그 장치

Legal Events

Date Code Title Description
8364 No opposition during term of opposition