US20090129408A1 - Method and apparatus for enabling transport of ethernet data over a serial digital interface transport service - Google Patents
Method and apparatus for enabling transport of ethernet data over a serial digital interface transport service Download PDFInfo
- Publication number
- US20090129408A1 US20090129408A1 US12/360,647 US36064709A US2009129408A1 US 20090129408 A1 US20090129408 A1 US 20090129408A1 US 36064709 A US36064709 A US 36064709A US 2009129408 A1 US2009129408 A1 US 2009129408A1
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- US
- United States
- Prior art keywords
- ethernet
- data
- embedder
- serial digital
- digital interface
- 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.)
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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]
- H04N21/20—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
- H04N21/238—Interfacing the downstream path of the transmission network, e.g. adapting the transmission rate of a video stream to network bandwidth; Processing of multiplex streams
- H04N21/2381—Adapting the multiplex stream to a specific network, e.g. an Internet Protocol [IP] network
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L12/407—Bus networks with decentralised control
- H04L12/413—Bus networks with decentralised control with random access, e.g. carrier-sense multiple-access with collision detection (CSMA-CD)
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/54—Store-and-forward switching systems
- H04L12/56—Packet switching systems
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/66—Arrangements for connecting between networks having differing types of switching systems, e.g. gateways
-
- 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
- H04N21/23602—Multiplexing isochronously with the video sync, e.g. according to bit-parallel or bit-serial interface formats, as SDI
-
- 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
- H04N21/4342—Demultiplexing isochronously with video sync, e.g. according to bit-parallel or bit-serial interface formats, as SDI
-
- 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
Definitions
- the present invention relates to the electrical arts and to the transport of Ethernet data. More particularly, this invention relates to methods and apparatus for enabling transport of Ethernet data over a serial digital interface transport service.
- Networks for transporting Ethernet data are known in office and business environments for communicating digital data. Such networks are termed local area networks (LAN) because Ethernet data may transmitted only over short distances, typically less than one kilometer. Data transport over longer distances and in particular between LAN's is accomplished using long distance communications means such as a link to a wide area network (WAN).
- LAN local area networks
- WAN wide area network
- SDI Serial Digital Interface
- SDI signals are self-synchronizing, typically using 8 bit or 10 bit data words and a data rate of 270 Mbit/sec. Blocks of data words transmitted according to the SDI standard are referred to as frames.
- An SDI frame includes an active video region and inactive ancillary spaces including a horizontal (HANC) space.
- Some offices have both an Ethernet LAN and a link to an SDI network. These offices would benefit from a method and means for transmitting Ethernet data over the SDI link. However, traditional SDI links will not transport Ethernet data signals.
- the present invention satisfies a long felt need to enhance the utilization of SDI video transport services by enabling the transport of Ethernet and other data services including video data transport over SDI networks.
- a preferred embodiment of the present invention includes an Embedder/De-Embedder that enables the transfer of Ethernet data over the SDI network.
- an Embedder function of the preferred embodiment uses a physical level Ethernet device (PHY) to convert the raw Ethernet data traffic into Media Independent Interface (MII) Data.
- PHY physical level Ethernet device
- a Field-Programmable Gate Array (FPGA), a type of logic chip that can be programmable, is specifically programmed to place the MII data into the active video region of the SDI frame.
- the SDI frame with its embedded Ethernet data is then transported over standard SDI equipment and routed to another Embedder/De-Embedder apparatus.
- a second Embedder/De-Embedder and in particular the De-Embedder then extracts the Ethernet MII data and passes it to another PHY device.
- the PHY device then transmits the physical level Ethernet data.
- the apparatus of the present invention appears to be a standard cable.
- the transport means is an SDI network and what is transported is media independent interface data derived from the Ethernet data or Ethernet MII data.
- the present invention does not interact at either the OSI Data Link or Transport layer or at any higher layers in the OSI Reference Model.
- the Embedder/Deembedder apparatus is similar, but here the FPGA is also programmed to place the Ethernet MII data into the unused Horizontal Ancillary (HANC) data space of the SDI frame.
- HANC Horizontal Ancillary
- FIG. 1 is a block diagram of the data transport apparatus of the present invention.
- FIG. 2 is a block diagram of the Embedder/DeEmbedder of the data transport apparatus of FIG. 1 .
- FIG. 1 shows a block diagram of a network system 10 .
- Ethernet data is transferred between two host computers 12 via an SDI video transport network 20 .
- Ethernet data 13 is sent from one computer 12 and routed via a router 14 , it encounters the Embedder/De-Embedder apparatus 16 of the present invention.
- the Ethernet data 13 is typically carried at speeds of 10M and 100M.
- 1 G and 10 G Ethernet may also be transported over the SDI network but throughput would be limited because of the lower data rate (270 Mbits/sec) of the SDI network. It should be noted that when both video and Ethernet are carried simultaneously, maximum Ethernet throughput is reduced since the Ethernet and video data share the available SDI bandwidth.
- FIG. 2 shows a block diagram of the Embedder/De-Embedder apparatus 16 .
- the Embedder/De-Embedder apparatus 16 includes a data converter or PHY 18 , an Ethernet/SDI Embedder 19 , and an Ethernet/SDI De-Embedder 21 .
- the data converter, the Ethernet/SDI Embedder, and the Ethernet/SDI De-Embedder are contained in a common enclosure 30 and in some embodiments, all of these devices are implemented on a single circuit board.
- the data converter 18 of the Embedder/De-Embedder apparatus 16 Upon receipt of the Ethernet data 13 through the router 14 , the data converter 18 of the Embedder/De-Embedder apparatus 16 converts the raw Ethernet data 13 into Ethernet MII data 23 .
- the Ethernet MII data 23 is then embedded by the Ethernet/SDI Embedder 19 .
- one or more field programmable gate arrays are associated with the Embedder/DeEmbedder and it is an FPGA that places this data into the active video region of the SDI frame.
- the FGPA is programmed to perform the operation of placing the data into the active video region.
- the data converter 18 has logic levels that are compatible with a selected FPGA. Any appropriate data converter interface may be used such as Intel's model LXT972A. In addition, FPGA devices are known in the industry, and any FPGA having sufficient size and speed may be used such as the Altera Cyclone FPGA.
- the SDI frame with the embedded Ethernet MII data is transported over standard SDI cables 22 through the Video Transport Network 20 and routed via second router 14 to another Embedder/De-Embedder apparatus 16 .
- the Ethernet/SDI De-Embedder 21 extracts the incoming Ethernet MII data 23 and passes it to another data converter 18 .
- the data converter 18 transmits the physical level Ethernet data 13 to the second host computer 12 .
- the FPGA is programmed to selectively place video or Ethernet MII data into the active video region of the SDI frame and Ethernet MII data into the unused HANC space of the SDI frame.
- the SDI transport can carry one or both of video and Ethernet MII data.
- video and Ethernet MII data may be carried simultaneously.
- Ethernet MII data is carried only in the HANC space of the SDI frame
- the throughput is about 4.1 Mbytes/sec. Therefore, 10M Ethernet may be transported in this embodiment without flow control while 100M Ethernet would require the use of flow control.
Abstract
A method and apparatus enables Ethernet data transport over a serial digital interface network. An Embedder/DeEmbedder for embedding Ethernet derived data and for de-embedding Ethernet derived data supports selective use of the active video region of the SDI frame and the unused HANC space for transporting Ethernet media independent interface data.
Description
- This patent application is a continuation of U.S. patent application Ser. No. 11/324,285 filed Dec. 30, 2005 entitled METHOD AND APPARATUS FOR ENABLING TRANSPORT OF ETHERNET DATA OVER A SERIAL DIGITAL INTERFACE TRANSPORT SERVICE.
- 1. Field of the Invention
- The present invention relates to the electrical arts and to the transport of Ethernet data. More particularly, this invention relates to methods and apparatus for enabling transport of Ethernet data over a serial digital interface transport service.
- 2. Description of Related Art
- Networks for transporting Ethernet data are known in office and business environments for communicating digital data. Such networks are termed local area networks (LAN) because Ethernet data may transmitted only over short distances, typically less than one kilometer. Data transport over longer distances and in particular between LAN's is accomplished using long distance communications means such as a link to a wide area network (WAN).
- The exchange of video content among distant parties prompted the creation of a means to transport digitized video over considerable distances using a network with a Serial Digital Interface (SDI). Digital video signals are therefore typically transmitted over the SDI transport according to one or more SDI standards.
- SDI signals are self-synchronizing, typically using 8 bit or 10 bit data words and a data rate of 270 Mbit/sec. Blocks of data words transmitted according to the SDI standard are referred to as frames. An SDI frame includes an active video region and inactive ancillary spaces including a horizontal (HANC) space.
- Some offices have both an Ethernet LAN and a link to an SDI network. These offices would benefit from a method and means for transmitting Ethernet data over the SDI link. However, traditional SDI links will not transport Ethernet data signals.
- The present invention satisfies a long felt need to enhance the utilization of SDI video transport services by enabling the transport of Ethernet and other data services including video data transport over SDI networks.
- A preferred embodiment of the present invention includes an Embedder/De-Embedder that enables the transfer of Ethernet data over the SDI network. In particular, an Embedder function of the preferred embodiment uses a physical level Ethernet device (PHY) to convert the raw Ethernet data traffic into Media Independent Interface (MII) Data.
- A Field-Programmable Gate Array (FPGA), a type of logic chip that can be programmable, is specifically programmed to place the MII data into the active video region of the SDI frame. The SDI frame with its embedded Ethernet data is then transported over standard SDI equipment and routed to another Embedder/De-Embedder apparatus.
- When the embedded data reaches its destination, a second Embedder/De-Embedder and in particular the De-Embedder then extracts the Ethernet MII data and passes it to another PHY device. The PHY device then transmits the physical level Ethernet data.
- To the Ethernet signal and all protocols that ride on it, the apparatus of the present invention appears to be a standard cable. But, the transport means is an SDI network and what is transported is media independent interface data derived from the Ethernet data or Ethernet MII data. In other words the present invention does not interact at either the OSI Data Link or Transport layer or at any higher layers in the OSI Reference Model.
- In another embodiment of the invention, the Embedder/Deembedder apparatus is similar, but here the FPGA is also programmed to place the Ethernet MII data into the unused Horizontal Ancillary (HANC) data space of the SDI frame. This allows the use of one or both of the active video region and the HANC space to transport Ethernet MII data. Consequently, in this embodiment the SDI transport is capable of carrying both video and Ethernet data simultaneously.
- The novel features of this invention will be best understood from the accompanying drawings, taken in conjunction with the accompanying description, in which similar characters refer to similar parts and in which:
-
FIG. 1 is a block diagram of the data transport apparatus of the present invention. -
FIG. 2 is a block diagram of the Embedder/DeEmbedder of the data transport apparatus ofFIG. 1 . -
FIG. 1 shows a block diagram of anetwork system 10. Ethernet data is transferred between twohost computers 12 via an SDIvideo transport network 20. When Ethernetdata 13 is sent from onecomputer 12 and routed via arouter 14, it encounters the Embedder/De-Embedderapparatus 16 of the present invention. - The Ethernet
data 13 is typically carried at speeds of 10M and 100M. In an embodiment, 1 G and 10 G Ethernet may also be transported over the SDI network but throughput would be limited because of the lower data rate (270 Mbits/sec) of the SDI network. It should be noted that when both video and Ethernet are carried simultaneously, maximum Ethernet throughput is reduced since the Ethernet and video data share the available SDI bandwidth. -
FIG. 2 shows a block diagram of the Embedder/De-Embedderapparatus 16. The Embedder/De-Embedderapparatus 16 includes a data converter orPHY 18, an Ethernet/SDI Embedder 19, and an Ethernet/SDI De-Embedder 21. - In an embodiment, the data converter, the Ethernet/SDI Embedder, and the Ethernet/SDI De-Embedder are contained in a common enclosure 30 and in some embodiments, all of these devices are implemented on a single circuit board.
- Upon receipt of the Ethernet
data 13 through therouter 14, thedata converter 18 of the Embedder/De-Embedderapparatus 16 converts theraw Ethernet data 13 into EthernetMII data 23. The EthernetMII data 23 is then embedded by the Ethernet/SDI Embedder 19. In an embodiment, one or more field programmable gate arrays are associated with the Embedder/DeEmbedder and it is an FPGA that places this data into the active video region of the SDI frame. Here, the FGPA is programmed to perform the operation of placing the data into the active video region. - The
data converter 18 has logic levels that are compatible with a selected FPGA. Any appropriate data converter interface may be used such as Intel's model LXT972A. In addition, FPGA devices are known in the industry, and any FPGA having sufficient size and speed may be used such as the Altera Cyclone FPGA. - The SDI frame with the embedded Ethernet MII data is transported over
standard SDI cables 22 through the Video Transport Network 20 and routed viasecond router 14 to another Embedder/De-Embedderapparatus 16. As theSDI frame 23 enters the Embedder/De-Embedderapparatus 16, the Ethernet/SDI De-Embedder 21 extracts the incoming EthernetMII data 23 and passes it to anotherdata converter 18. Thedata converter 18 transmits the physical level Ethernetdata 13 to thesecond host computer 12. - In another embodiment of the present invention, the FPGA is programmed to selectively place video or Ethernet MII data into the active video region of the SDI frame and Ethernet MII data into the unused HANC space of the SDI frame. In this embodiment, the SDI transport can carry one or both of video and Ethernet MII data. In particular, video and Ethernet MII data may be carried simultaneously.
- In an embodiment where Ethernet MII data is carried only in the HANC space of the SDI frame, the throughput is about 4.1 Mbytes/sec. Therefore, 10M Ethernet may be transported in this embodiment without flow control while 100M Ethernet would require the use of flow control.
- While various embodiments of the present invention have been described above, it should be understood that they have been presented by way of example only, and not limitation. It will be understood by those skilled in the art that various changes in form and details can be made therein without departing form the spirit and scope of the invention as defined in the appended claims. Thus, the breadth and scope of the present invention should not be limited by any of the above-described exemplary embodiments, but should be defined only in accordance with the following claims and their equivalents.
Claims (3)
1. An apparatus for enabling transport of Ethernet derived data over a serial digital interface video transport service comprising:
an embedder for embedding Ethernet derived data into a horizontal ancillary (HANC) data space of a serial digital interface frame; and,
a de-embedder for de-embedding Ethernet derived data that is embedded in a serial digital interface frame; and,
2. An apparatus for transporting data over a serial digital interface video transport service comprising:
an embedder operably connected to a media independent interface said embedder for embedding Ethernet data received and processed by said media independent interface into a horizontal ancillary (HANC) data space of a serial digital interface frame; and,
a de-embedder operably connected to a media independent interface said de-embedder for de-embedding data embedded in a serial digital interface frame and said media independent interface for converting said de-embedded data for use in an Ethernet data network.
3. A method of transmitting Ethernet data between two or more hosts comprising the steps of:
acquiring Ethernet data from one of said hosts and embedding Ethernet derived data into a horizontal ancillary (HANC) data space of a serial digital interface frame;
transporting said Ethernet derived data over a serial digital interface transport service;
de-embedding the Ethernet derived data from the serial digital interface frame; and,
utilizing Ethernet data derived from said Ethernet derived data in an Ethernet network.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/360,647 US20090129408A1 (en) | 2005-12-30 | 2009-01-27 | Method and apparatus for enabling transport of ethernet data over a serial digital interface transport service |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/324,285 US7697566B2 (en) | 2005-12-30 | 2005-12-30 | Method and apparatus for enabling transport of ethernet data over a serial digital interface transport service |
US12/360,647 US20090129408A1 (en) | 2005-12-30 | 2009-01-27 | Method and apparatus for enabling transport of ethernet data over a serial digital interface transport service |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/324,285 Continuation US7697566B2 (en) | 2005-12-30 | 2005-12-30 | Method and apparatus for enabling transport of ethernet data over a serial digital interface transport service |
Publications (1)
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US20090129408A1 true US20090129408A1 (en) | 2009-05-21 |
Family
ID=38224312
Family Applications (2)
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US11/324,285 Expired - Fee Related US7697566B2 (en) | 2005-12-30 | 2005-12-30 | Method and apparatus for enabling transport of ethernet data over a serial digital interface transport service |
US12/360,647 Abandoned US20090129408A1 (en) | 2005-12-30 | 2009-01-27 | Method and apparatus for enabling transport of ethernet data over a serial digital interface transport service |
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US11/324,285 Expired - Fee Related US7697566B2 (en) | 2005-12-30 | 2005-12-30 | Method and apparatus for enabling transport of ethernet data over a serial digital interface transport service |
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US (2) | US7697566B2 (en) |
WO (1) | WO2007079241A2 (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
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US9817785B2 (en) * | 2015-04-09 | 2017-11-14 | Embrionix Design Inc. | Standardized hot-pluggable transceiving unit with SDI signal to IP flows conversion capabilities |
US10164879B2 (en) * | 2016-11-10 | 2018-12-25 | Embrionix Design Inc. | Method for performing optimized flow switching |
CN108124159B (en) * | 2016-11-30 | 2019-06-28 | 视联动力信息技术股份有限公司 | A kind of data processing method of four core terminal and four core terminals |
CN111131267A (en) * | 2019-12-25 | 2020-05-08 | 博依特(广州)工业互联网有限公司 | Ethernet self-adaption method, device and system based on FPGA |
CN113473648A (en) * | 2021-06-29 | 2021-10-01 | 南京濠暻通讯科技有限公司 | Data transmission method between RMII and 10G interfaces in 5G base station RU |
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US20020164149A1 (en) * | 2000-09-06 | 2002-11-07 | Wilkinson James Hedley | Combining video material and data |
US20050141623A1 (en) * | 2003-12-31 | 2005-06-30 | Jae-Hun Cho | Transport stream transmission apparatus |
US20050169302A1 (en) * | 2004-01-30 | 2005-08-04 | Seung-Jin Lee | Method for transmitting and receiving ethernet data in system based on broadcast/communication convergence |
US20060051054A1 (en) * | 2004-09-07 | 2006-03-09 | Yuji Ino | Video material management apparatus and method, recording medium as well as program |
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US6819395B2 (en) * | 2002-08-30 | 2004-11-16 | Texas Instruments Incorporated | Digital cinema transport stream with embedded projector configuration data |
US8296801B2 (en) * | 2000-04-10 | 2012-10-23 | Sony Corporation | Asset management system and asset management method |
KR100454681B1 (en) * | 2002-11-07 | 2004-11-03 | 한국전자통신연구원 | An Ethernet switching Apparatus and Method using Frame Multiplexing and Demultiplexing |
CN100440825C (en) * | 2003-01-28 | 2008-12-03 | 华为技术有限公司 | System and method for switchingin and transmission of different data frames in digital transmission network |
US20040264961A1 (en) * | 2003-06-12 | 2004-12-30 | Nam Hong Soon | Ethernet passive optical network system, and optical network terminal and optical line terminal provided in the same |
JP4192802B2 (en) * | 2003-08-07 | 2008-12-10 | セイコーエプソン株式会社 | Digital video communication device |
US20070061414A1 (en) * | 2005-07-21 | 2007-03-15 | Steve Bakke | Ethernet interconnection and interoperability of disparate send and receive devices |
US20070143801A1 (en) * | 2005-12-20 | 2007-06-21 | Madonna Robert P | System and method for a programmable multimedia controller |
-
2005
- 2005-12-30 US US11/324,285 patent/US7697566B2/en not_active Expired - Fee Related
-
2006
- 2006-12-29 WO PCT/US2006/049613 patent/WO2007079241A2/en active Application Filing
-
2009
- 2009-01-27 US US12/360,647 patent/US20090129408A1/en not_active Abandoned
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
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US20020164149A1 (en) * | 2000-09-06 | 2002-11-07 | Wilkinson James Hedley | Combining video material and data |
US20050141623A1 (en) * | 2003-12-31 | 2005-06-30 | Jae-Hun Cho | Transport stream transmission apparatus |
US20050169302A1 (en) * | 2004-01-30 | 2005-08-04 | Seung-Jin Lee | Method for transmitting and receiving ethernet data in system based on broadcast/communication convergence |
US20060051054A1 (en) * | 2004-09-07 | 2006-03-09 | Yuji Ino | Video material management apparatus and method, recording medium as well as program |
Also Published As
Publication number | Publication date |
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WO2007079241A2 (en) | 2007-07-12 |
US20070153784A1 (en) | 2007-07-05 |
US7697566B2 (en) | 2010-04-13 |
WO2007079241A3 (en) | 2008-02-14 |
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AS | Assignment |
Owner name: VIDEO PRODUCTS GROUP, INC., CALIFORNIA Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:KEANE, EUGENE;SNYDER, WAYNE;REEL/FRAME:022706/0693 Effective date: 20090507 |
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STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |