US20100185938A1 - Mulitple updates to content descriptions using a single command - Google Patents

Mulitple updates to content descriptions using a single command Download PDF

Info

Publication number
US20100185938A1
US20100185938A1 US12749442 US74944210A US2010185938A1 US 20100185938 A1 US20100185938 A1 US 20100185938A1 US 12749442 US12749442 US 12749442 US 74944210 A US74944210 A US 74944210A US 2010185938 A1 US2010185938 A1 US 2010185938A1
Authority
US
Grant status
Application
Patent type
Prior art keywords
lt
fragment
update
description
name
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.)
Abandoned
Application number
US12749442
Inventor
Hawley K. Rising, III
Ali Tahatabai
Mohammed Z. Visharam
Toby Walker
Original Assignee
Rising Iii Hawley K
Ali Tahatabai
Visharam Mohammed Z
Toby Walker
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

Links

Images

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television, VOD [Video On Demand]
    • H04N21/20Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/235Processing of additional data, e.g. scrambling of additional data, processing content descriptors
    • H04N21/2353Processing of additional data, e.g. scrambling of additional data, processing content descriptors specifically adapted to content descriptors, e.g. coding, compressing or processing of metadata
    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F17/00Digital computing or data processing equipment or methods, specially adapted for specific functions
    • G06F17/30Information retrieval; Database structures therefor ; File system structures therefor
    • G06F17/3061Information retrieval; Database structures therefor ; File system structures therefor of unstructured textual data
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television, VOD [Video On Demand]
    • H04N21/20Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
    • H04N21/23Processing of content or additional data; Elementary server operations; Server middleware
    • H04N21/235Processing of additional data, e.g. scrambling of additional data, processing content descriptors
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television, VOD [Video On Demand]
    • H04N21/40Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network, synchronizing decoder's clock; Client middleware
    • H04N21/435Processing of additional data, e.g. decrypting of additional data, reconstructing software from modules extracted from the transport stream
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television, VOD [Video On Demand]
    • 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
    • H04N21/4508Management of client or end-user data
    • H04N21/4532Management of client or end-user data involving end-user characteristics, e.g. viewer profile, preferences
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television, VOD [Video On Demand]
    • 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
    • H04N21/454Content or additional data filtering, e.g. blocking advertisements
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00Selective content distribution, e.g. interactive television, VOD [Video On Demand]
    • H04N21/80Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
    • H04N21/83Generation or processing of protective or descriptive data associated with content; Content structuring
    • H04N21/84Generation or processing of descriptive data, e.g. content descriptors
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00Details of television systems
    • H04N5/44Receiver circuitry
    • H04N5/4401Receiver circuitry for the reception of a digital modulated video signal
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00Details of television systems
    • H04N5/44Receiver circuitry
    • H04N5/445Receiver circuitry for displaying additional information
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00Television systems
    • H04N7/16Analogue secrecy systems; Analogue subscription systems

Abstract

Updates to a content description represented as a tree are contained in a series of fragment update units. Each fragment update unit includes an update command and a navigation path, and may include a fragment payload depending on the update command. The update command is applied to a set of nodes in the tree that are selected using the navigation path. The fragment payload may contain a fragment, a fragment reference, or an attribute. The update command may be an add, delete or replace command. More than one fragment payload may be present in the fragment update unit, with each fragment payload applied to a different one of the nodes from the set selected by the navigation path.

Description

    RELATED APPLICATIONS
  • [0001]
    This application is related to and claims the benefit of U.S. patent application Ser. No. 10/086,275, filed on Feb. 28, 2002, which claims the benefit of Provisional patent applications 60/272,796, filed Mar. 1, 2001 and 60/305,009, filed Jul. 11, 2001, which are incorporated by reference herein.
  • FIELD OF THE INVENTION
  • [0002]
    This invention relates generally to the transmission of digital multimedia content, and more particularly to updating multimedia content descriptions for digital multimedia content.
  • COPYRIGHT NOTICE/PERMISSION
  • [0003]
    A portion of the disclosure of this patent document contains material which is subject to copyright protection. The copyright owner has no objection to the facsimile reproduction by anyone of the patent document or the patent disclosure as it appears in the Patent and Trademark Office patent file or records, but otherwise reserves all copyright rights whatsoever. The following notice applies to the software and data as described below and in the drawings hereto: Copyright © 2001, Sony Electronics, Inc., All Rights Reserved.
  • BACKGROUND OF THE INVENTION
  • [0004]
    Digital multimedia information is becoming widely distributed through broadcast transmission, such as digital television signals, and interactive transmission, such as the Internet. The information may be in still images, audio feeds, or video data streams. However, the availability of such a large volume of information has led to difficulties in identifying content that is of particular interest to a user. Various organizations have attempted to deal with the problem by providing a description of the information that can be used to search, filter and/or browse to locate particular content. The Moving Picture Experts Group (MPEG) has promulgated a Multimedia Content Description Interface standard, commonly referred to as MPEG-7 to standardize the content descriptions for multimedia information. In contrast to preceding MPEG standards such as MPEG-1 and MPEG-2, which define coded representations of audio-visual content, an MPEG-7 content description describes the structure and semantics of the content and not the content itself.
  • [0005]
    Using a movie as an example, a corresponding MPEG-7 content description would contain “descriptors” (D), which are components that describe the features of the movie, such as scenes, titles for scenes, shots within scenes, time, color, shape, motion, and audio information for the shots. The content description would also contain one or more “description schemes” (DS), which are components that describe relationships among two or more descriptors and/or description schemes, such as a shot description scheme that relates together the features of a shot. A description scheme can also describe the relationship among other description schemes, and between description schemes and descriptors, such as a scene description scheme that relates the different shots in a scene, and relates the title feature of the scene to the shots.
  • [0006]
    MPEG-7 uses a Data Definition Language (DDL) that specifies the language for defining the standard set of description tools (DS, D) and for defining new description tools and provides a core set of descriptors and description schemes. The DDL definitions for a set of descriptors and description schemes are organized into “schemas” for different classes of content. The DDL definition for each descriptor in a schema specifies the syntax and semantics of the corresponding feature. The DDL definition for each description scheme in a schema specifies the structure and semantics of the relationships among its children components, the descriptors and description schemes. The DDL may be used to modify and extend the existing description schemes and create new description schemes and descriptors.
  • [0007]
    The MPEG-7 DDL is based on XML (extensible markup language) and the XML Schema standards. The descriptors, description schemes, semantics, syntax, and structures are represented with XML elements and XML attributes. Some of the XML elements and attributes may be optional.
  • [0008]
    The MPEG-7 content description for a particular piece of content is defined as an instance of an MPEG-7 schema; that is, it contains data that adheres to the syntax and semantics defined in the schema. The content description is encoded in an “instance document” that references the appropriate schema. The instance document contains a set of “descriptor values” for the required elements and attributes defined in the schema, and for any necessary optional elements and/or attributes. For example, some of the descriptor values for a particular movie might specify that the movie has three scenes, with scene one having six shots, scene two having five shots, and scene three having ten shots. The instance document may be encoded in a textual format using XML, or in a binary format, such as the binary format specified for MPEG-7 data, known as “BiM,” or a mixture of the two formats.
  • [0009]
    The instance document is transmitted through a communication channel, such as a computer network, to another system that uses the content description data contained in the instance document to search, filter and/or browse the corresponding content data stream. Typically, the instance document is compressed for faster transmission. An encoder component may both encode and compress the instance document or the functions may be performed by different components. Furthermore, the instance document may be generated by one system and subsequently transmitted by a different system. A corresponding decoder component at the receiving system uses the referenced schema to decode the instance document. The schema may be transmitted to the decoder separately from the instance document, as part of the same transmission, or obtained by the receiving system from another source. Alternatively, certain schemas may be incorporated into the decoder.
  • [0010]
    Although compression can reduce transmission time by decreasing the size of the instance document, if the description is large, transmitting the entire content description over a network can still take too much time. Therefore, only portions of the instance document may be transmitted to conserve bandwidth. In general, a content description can be modeled as a tree that is composed of a set of sub-trees or fragments. The determination of which fragments to send is application dependent.
  • [0011]
    Additionally, the content description may be dynamic in that it changes during the time the instance document is being transmitted to the receiving system. For example, if the content description describes a scene being captured by a camera, the content description changes when an object appears or disappears from the scene. Similarly, if the content description is for a television program, portions of the description, such as the broadcast time of the program, may change and such changes are transmitted to the receiving system. Any changes must be incorporated into the content description already transmitted. In general, it is more efficient to send only the changed fragments and indicate where they are to be applied/updated instead of re-transmitting the entire content description.
  • SUMMARY OF THE INVENTION
  • [0012]
    Updates to a content description represented as a tree are contained in a series of fragment update units. Each fragment update unit includes an update command and a navigation path, and may include a fragment payload depending on the update command. The update command is applied to a set of nodes in the tree that are selected using the navigation path. The fragment payload may contain a fragment, a fragment reference, or an attribute. The update command may be an add, delete or replace command. More than one fragment payload may be present in the fragment update unit, with each fragment payload applied to a different one of the nodes from the set selected by the navigation path.
  • BRIEF DESCRIPTION OF THE DRAWINGS
  • [0013]
    FIGS. 1A-D are diagrams illustrating the operation of embodiments of the invention;
  • [0014]
    FIG. 2 is diagram of a computer environment suitable for practicing the invention;
  • [0015]
    FIG. 3A is a flow diagram of a method to encode access units according to an embodiment of the invention; and
  • [0016]
    FIG. 3B is a flow diagram of a method to decode access units according to an embodiment of the invention.
  • DETAILED DESCRIPTION OF THE INVENTION
  • [0017]
    In the following detailed description of embodiments of the invention, reference is made to the accompanying drawings in which like references indicate similar elements, and in which is shown, by way of illustration, specific embodiments in which the invention may be practiced. These embodiments are described in sufficient detail to enable those skilled in the art to practice the invention, and it is to be understood that other embodiments may be utilized and that logical, mechanical, electrical, functional and other changes may be made without departing from the scope of the present invention. The following detailed description is, therefore, not to be taken in a limiting sense, and the scope of the present invention is defined only by the appended claims.
  • [0018]
    Beginning with an overview of a multimedia content description delivery system 100 as illustrated in FIG. 1A, a content description on a transmitting system may be updated by adding, deleting or replacing description fragments, i.e., descriptors and description schemes, and/or attributes within fragments. The updates are organized into packets 109, such as by encoder 103, and transmitted to a receiving system 105. A decoder 107 on the receiving system 105 updates an existing content description 111 to recreate the updated content description 113 on the receiving system 105 by applying the updates to the existing content description 111. The packets 109 are referred to herein as “access units,” which is the term used by the MPEG-7 standard, but the invention is not so limited. It will be further appreciated that the invention is not limited to the particular arrangement of components illustrated in FIG. 1A. For example, one of skill in the art will immediately recognize that the transmitting system may receive the access units from another system for subsequent transmission.
  • [0019]
    One embodiment of an access unit 121 is illustrated in FIG. 1B in which the access unit 121 contains one or more fragment update units 123, which may update multiple content description fragments (i.e. description sub-trees) using a single command. Each fragment update unit 125 contains a navigation path 127, an update command 129, and zero or more fragment payloads 131, depending on the update command 129. Each fragment payload 131 contains a fragment 135, a reference to a fragment 137, or an attribute 139 to apply to the description tree. The navigation path 127 is a content-based address 133 that directs the decoder to the appropriate locations in the description tree by specifying a path to a particular level in the tree and, optionally, a query condition for selecting a set of nodes. The update command 129 is applied to the nodes in the set of selected nodes.
  • [0020]
    FIGS. 1C and 1D illustrate the update/addition of fragments to a description tree using a fragment update unit as shown in FIG. 1B. Although not illustrated in FIGS. 1C-D, when the fragment update unit 125 is created to delete a fragment, the fragment payload section 131 is empty.
  • [0021]
    A single fragment update unit can be used to update multiple nodes with the same fragment as illustrated in FIG. 1C, in which description tree 141 is updated to match description tree 143 by adding a node H fragment to each D node. The fragment update unit contains a content-based address (illustrated as arrows 145, 147) that indicates the two D nodes in the third level in the tree 141, an update command of “add,” and a fragment payload 149 containing, or identifying, the node H fragment. The decoder uses the content-based address to select the two D nodes and adds the node H fragment as a child of each D node. In one embodiment, an added fragment is always a child of the selected nodes. In an alternate embodiment, the content-based address specifies the relationship between the added fragment and the selected nodes.
  • [0022]
    A single fragment update unit can also be used to update multiple nodes with different fragments as illustrated in FIG. 1D, in which the description tree 141 is updated to match description tree 151. As described in conjunction within FIG. 1C, the fragment update unit contains an add command and a content-based address (arrows 145, 147) that points to the D nodes as the selected node set. The fragment payload 153 identified fragments for two nodes, node I and node J. The decoder applies the node I fragment to the first node in the set, and the node J fragment to the second node in the set. It is assumed that the application creating the fragment update unit has a priori knowledge about the number and order of the nodes that will be selected by the content-based address at the decoder.
  • [0023]
    In one embodiment, when the navigation path references content descriptions coded in XML, such as MPEG-7 content descriptions, the content-based address 133 is a location path expression in the XML path language (XPath). An XPath location path consists of a set of location steps that walk through nodes in a tree structure. Each step is relative to a set of context nodes specified by the previous step. A location step consists of three parts:
      • 1. an axis that specifies the relationship in the tree between the nodes selected by the step and the context node(s), e.g., parent, child, ancestor, sibling, attribute, etc.;
      • 2. a node test that specifies the node type of the nodes selected by the step, e.g., text, attribute, element, etc.; and
      • 3. zero or more predicates that are used to filter the nodes selected by the step, e.g., * (select all), text, @attribute-name, order-number, etc.
  • [0027]
    For example, consider the following XML content description:
  • [0000]
    <doc>
      <name first=“David” last=“Marston”/>
      <name first=“David” last=“Bertoni”/>
      <name first=“Donald” last=“Leslie”/>
      <name first=“Emily” last=“Farmer”/>
      <name first=“Myriam” last =“Midy”/>
      <name first=“Paul” last=“Dick”/>
      <name first=“Scott” last=“Boag”/>
      <name first=“Shane” last=“Curcuru”/>
      <name first=“Joseph” last =“Kesselman”/>
      <name first=“Stephen” last=“Auriemma”/>
    </doc>

    If the fragment update unit contains the following:
  • [0000]
    NavigationPath: /doc/name[@first=“David”]
    UpdateCommand: AddFragment
    FragmentPayload: <Sex>Male</Sex>

    the decoder selects the nodes corresponding to David Marston and David Bertoni, and adds the fragment in the FragmentPayload to them, resulting in
  • [0000]
    <doc>
      <name first=“David” last=“Marston”>
        <Sex>Male</Sex>
      </name>
      <name first=“David” last=“Bertoni”>
        <Sex>Male</Sex>
      </name>
      <name first=“Donald” last=“Leslie”/>
      <name first=“Emily” last=“Farmer”/>
      <name first=“Myriam” last =“Midy”/>
      <name first=“Paul” last=“Dick”/>
      <name first=“Scott” last=“Boag”/>
      <name first=“Shane” last=“Curcuru”/>
      <name first=“Joseph” last =“Kesselman”/>
      <name first=“Stephen” last=“Auriemma”/>
    </doc>
  • [0028]
    Different fragments can be included in the fragment payload to update the nodes differently. Assuming the XML content description above, and the same context-based address, if the FragmentPayload contained <Age>21</Age> and <Age>35</Age>, the resulting content description would be
  • [0000]
    <doc>
      <name first=“David” last=“Marston”>
        <Age>21</Age>
      </name>
      <name first=“David” last=“Bertoni”>
        <Age>35</Age>
      </name>
      <name first=“Donald” last=“Leslie”/>
      <name first=“Emily” last=“Farmer”/>
      <name first=“Myriam” last =“Midy”/>
      <name first=“Paul” last=“Dick”/>
      <name first=“Scott” last=“Boag”/>
      <name first=“Shane” last=“Curcuru”/>
      <name first=“Joseph” last =“Kesselman”/>
      <name first=“Stephen” last=“Auriemma”/>
    </doc>
  • [0029]
    As illustrated in FIG. 1B, a fragment update unit 125 may also specify attributes to update. In one embodiment, attributes are treated as child nodes of the element to which they belong. The fragment payload 131 contains a single node 139, which is the value of the attribute, and the attribute nodes to update are selected using the content-based address as described above. In an alternative embodiment, the fragment update unit 125 distinguishes between fragment updates and attribute updates by including the attribute identification tag, i.e., @attribute-id, in the fragment payload 131 for an attribute update. The payload for an add or replace command also specifies the attribute value, i.e., @ attribute-id=value. The fragment payload in a fragment update unit that deletes an attribute contains only the attribute identification tag. By placing the distinction in the fragment payload, the same content-based address and command set can be used for both fragment and attribute updates.
  • [0030]
    For example, applying the following fragment update units, which designate nodes by order number,
  • [0000]
    NavigationPath: /doc/name[6]/
    UpdateCommand: DeleteFragment
    FragmentPayload: @last
    NavigationPath: /doc/name[4]/
    UpdateCommand: AddFragment
    FragmentPayload: @middle=“Smith”
    NavigationPath: /doc/name[3]/
    UpdateCommand: ReplaceFragment
    FragmentPayload: @first=“Ronald”

    to the content description from above, results in
  • [0000]
    <doc>
      <name first=“David” last=“Marston”/>
      <name first=“David” last=“Bertoni”/>
      <name first=“Ronald” last=“Leslie”/>
      <name first=“Emily” last=“Farmer” middle=“Smith”/>
      <name first=“Myriam” last =“Midy”/>
      <name first=“Paul”/>
      <name first=“Scott” last=“Boag”/>
      <name first=“Shane” last=“Curcuru”/>
      <name first=“Joseph” last =“Kesselman”/>
      <name first=“Stephen” last=“Auriemma”/>
    </doc>
  • [0031]
    In an alternate embodiment, the distinction between fragment and attribute updates is achieved by creating new update commands, such as AddAttribute, DeleteAttribute, and ReplaceAttribute, and by specifying the attribute identification tag as part of the content-based address, which is subsequently extracted by the decoder in applying the update.
  • [0032]
    The following description of FIG. 2 is intended to provide an overview of computer hardware and other operating components suitable for implementing the invention, but is not intended to limit the applicable environments. FIG. 2 illustrates one embodiment of a computer system suitable for use as the transmitting and/or receiving system of FIG. 1A. The computer system 40 includes a processor 50, memory 55 and input/output capability 60 coupled to a system bus 65. The memory 55 is configured to store instructions which, when executed by the processor 50, perform the methods described herein. The memory 55 may also store the access units. Input/output 60 provides for the delivery and receipt of the access units. Input/output 60 also encompasses various types of computer-readable media, including any type of storage device that is accessible by the processor 50. One of skill in the art will immediately recognize that the term “computer-readable medium/media” further encompasses a carrier wave that encodes a data signal. It will also be appreciated that the system 40 is controlled by operating system software executing in memory 55. Input/output and related media 60 store the computer-executable instructions for the operating system and methods of the present invention as well as the access units. The encoder 103 and decoder 107 shown in FIG. 1A may be separate components coupled to the processor 50, or may be embodied in computer-executable instructions executed by the processor 50. In one embodiment, the computer system 40 may be part of, or coupled to, an ISP (Internet Service Provider) through input/output 60 to transmit or receive the access units over the Internet. It is readily apparent that the present invention is not limited to Internet access and Internet web-based sites; directly coupled and private networks are also contemplated.
  • [0033]
    It will be appreciated that the computer system 40 is one example of many possible computer systems that have different architectures. A typical computer system will usually include at least a processor, memory, and a bus coupling the memory to the processor. One of skill in the art will immediately appreciate that the invention can be practiced with other computer system configurations, including multiprocessor systems, minicomputers, mainframe computers, and the like. The invention can also be practiced in distributed computing environments where tasks are performed by remote processing devices that are linked through a communications network.
  • [0034]
    Next, the particular methods of the invention are described in terms of computer software with reference to a series of flow diagrams in FIGS. 3A-B. The methods constitute computer programs made up of computer-executable instructions illustrated as blocks (acts) in FIGS. 3A-B. Describing the methods by reference to a flow diagram enables one skilled in the art to develop such programs including such instructions to carry out the methods on suitably configured computers (the processor of the computer executing the instructions from computer-readable media, including memory). The computer-executable instructions may be written in a computer programming language or may be embodied in firmware logic. If written in a programming language conforming to a recognized standard, such instructions can be executed on a variety of hardware platforms and for interface to a variety of operating systems. In addition, the present invention is not described with reference to any particular programming language. It will be appreciated that a variety of programming languages may be used to implement the teachings of the invention as described herein. Furthermore, it is common in the art to speak of software, in one form or another (e.g., program, procedure, process, application, module, logic . . . ), as taking an action or causing a result. Such expressions are merely a shorthand way of saying that execution of the software by a computer causes the processor of the computer to perform an action or produce a result. It will be appreciated that more or fewer processes may be incorporated into the methods illustrated in FIGS. 3A-B without departing from the scope of the invention and that no particular order is implied by the arrangement of blocks shown and described herein.
  • [0035]
    Referring first to FIG. 3A, the acts to be performed to encode an access unit are shown. The method 300 is invoked when an application indicates updates to fragments or attributes of a content description should be disseminated to receiving systems. The method 300 may be incorporated into an encoder or operate as a separate module, and may be performed by the transmitting system or by another system that transfers the encoded access units to the transmitting system.
  • [0036]
    For each fragment update unit in the access unit, the method 300 performs the acts represented by blocks 301 until 319 for each update command to be encoded. The navigation path to the appropriate nodes is determined at block 303 and each of the fragment payloads are formatted at blocks 305 until 315. If a payload is to update an attribute (block 307), the payload is formatted with the attribute identification tag and the attribute value, if necessary (block 309). If the update is to delete a fragment (block 311), no payload is required. If the update is to add or replace a fragment, the payload is formatted to contain either the fragment or a reference to the fragment (block 313). Once all payloads for a fragment update unit have been formatted (block 315), the fragment update unit is created (block 317) containing the navigation path, the update command, and the fragment payloads, if any. When all fragment update units for the access unit have been created (block 319), the method 300 terminates.
  • [0037]
    When a receiving system receives an access unit, it invokes a decode access unit method 320. The method 320 may be executed by a decoder in the receiving system or as a separate module. When an access unit is received, each fragment update unit in the access unit is processed as illustrated by blocks 321 until 343. The fragment update unit is extracted (block 323) and the navigation path is used to select the set of nodes to update (block 325). If the command is delete (block 327), the set of nodes/attributes are deleted (block 329). For each fragment payload, the processing illustrated by blocks 331 until 341 is performed. The appropriate nodes that are to be updated with the payload are determined (block 333), i.e., the next node if there are multiple payloads. If the update command is add (block 335), the payload, either fragments or attributes, are added to the nodes (block 337). If the update command is a replace, the fragments or attributes in the payload replace the corresponding data in the nodes (block 339).
  • [0038]
    In an MPEG-7 implementation, the access unit 121 of FIG. 1B may be defined in DDL syntax as follows:
  • [0000]
    <element name=“AccessUnit” type=“mpeg7:AccessUnitType”/>
    <complexType name=“AccessUnitType”>
     <sequence>
      <element name=“FragmentUpdateUnit”
            type=“mpeg7:FragmentUpdateUnitType”
            minOccurs=“1” maxOccurs=“unbounded”/>
     <element name=“DigitalSignature” type=“mpeg7:DigitalSignatureType”
            minOccurs=“0” maxOccurs=“1”/>
     </sequence>
     <attribute name=“Order” use=“default” value=“seq”>
       <simpleType>
       <restriction base=“string”>
        <enumeration value=“seq”/>
        <enumeration value=“par”/>
       </restriction>
      </simpleType>
     </attribute>
    </complexType>.

    The access unit is composed of a sequence of FragmentUpdateUnits, as defined below. The order attribute indicates whether the update order should be preserved between a sequence of fragment update commands, with “seq” meaning that order is to be preserved when executing the update commands, while “par” value means that that update commands may be executed in any order. DigitalSignature is used for authentication purposes and is an optional field, with its design and use left up to the user.
  • [0039]
    A FragmentUpdateUnit is the container for navigation, update command and fragment payload elements as previously described in conjunction with fragment update units 123 in FIG. 1B. These elements are used for the selection and execution of fragment update operations. An MPEG-7 DDL for a FragmentUpdateUnit according to the present invention may be
  • [0000]
    <complexType name=“FragmentUpdateUnitType”>
     <element name=“Navigation” type=“mpeg7:XPathType”
      minOccurs=“1”/>
     <element name=“UpdateCommand”
       type=“mpeg7:UpdateCommandType” minOccurs=“1”/>
     <element name=“FragmentPayload”
     type=“mpeg7:FragmentPayloadType”
      minOccurs=“0” maxOccurs=“unbounded”/>
    </complexType>.

    Another MPEG-7 DDL definition of FragmentUpdateUnit is
  • [0000]
    <complexType name=“FragmentUpdateUnitType”>
    <sequence>
      <element name=“FUCommand”
      type=“mpeg7s:FragmentUpdateCommandType”/>
      <element name=“FUContext”
        type=“mpeg7s:FragmentUpdateContextType”
        minOccurs=“0”/>
      <element name=“FUPayload”
        type=“mpeg7s:FragmentUpdatePayloadType”
        minOccurs=“0” />
    </sequence>
    </complexType>.

    The Navigation element is an XPath expression that is used to provide the set of nodes to update as previously described in conjunction with navigation path 127 in FIG. 1B. The MPEG-7 DDL for the UpdateCommand element may be
  • [0000]
    <simpleType name=“UpdateCommandType”>
     <restriction base=“string”>
      <enumeration value=“AddFragment”/>
      <enumeration value=“DeleteFragment”/>
      <enumeration value=“ReplaceFragment”/>
      <enumeration value=“Reset”/>
     </restriction>
    </simpleType>.

    An alternative MPEG-7 DDL definition of the UpdateCommand type is:
  • [0000]
    <simpleType name=“FragmentUpdateCommandType”>
      <union>
        <simpleType>
          <restriction base=“string”>
            <enumeration value=“addNode”/>
            <enumeration value=“deleteNode”/>
            <enumeration value=“replaceNode”/>
            <enumeration value=“reset”/>
          </restriction>
        </simpleType>
        <simpleType>
          <restriction base=“string”/>
        </simpleType>
      </union>
    </simpleType>.

    The AddFragment, DeleteFragment, and ReplaceFragment commands correspond to the add, delete and replace commands previously described in conjunction with update command 129 in FIG. 1B. The Reset command sets the context node to the node pointed by the navigation in the description tree generated by a base access unit during an initialization process. The MPEG-7 DDL for a FragmentPayload element according to the present invention may be
  • [0000]
    <complexType name=“FragmentPayloadType”>
     <complexContent>
      <choice>
       <element name=“Payload” type=“mpeg7:Mpeg7RootType”>
       <element name=“Reference” type=“mpeg7:ReferenceType”/>
      <attribute name=“PartialInstantiation” type=“boolean”
          use=“default” value=“false”/>
     </complexContent>
    </complexType>.

    An alternative but functionally equivalent DDL definition is:
  • [0000]
    <complexType name=“FragmentUpdatePayloadType”>
      <sequence>
        <any processContents=“skip” minOccurs=“0”/>
      </sequence>
      <attribute name=“hasDeferredNodes” type=“boolean”
        use=“required” default=“false”/>
      <anyAttribute namespace=“##other” processContents=“skip”
      use=“optional”/>
    </complexType>.

    The Payload element contains the value of an updated description fragment or an attribute value as previously described in conjunction with fragment 135 or attribute 139 in FIG. 1B. The Reference element contains a pointer to a fragment that contains the value of the updated description fragment as previously described in conjunction with reference 137. The description fragment identified by Payload or Reference is either a complete description or a single descriptor or description instance. When true, the PartialInstantiation attribute (or the hasDeferredNodes attribute in the alternate definition) indicates that one or several elements of the fragment identified by Payload or Reference have empty content.
  • [0040]
    A multimedia content description delivery system that disseminates and applies updates to content descriptions has been described. Although specific embodiments have been illustrated and described herein, it will be appreciated by those of ordinary skill in the art that any arrangement which is calculated to achieve the same purpose may be substituted for the specific embodiments shown. This application is intended to cover any adaptations or variations of the present invention.
  • [0041]
    The terminology used in this application with respect to MPEG-7 is meant to include all environments that provide content descriptions. Therefore, it is manifestly intended that this invention be limited only by the following claims and equivalents thereof.

Claims (23)

  1. 1. A computerized method of updating a multimedia content description represented as a description tree, the method comprising:
    selecting, by an encoder, an update command to update a set of nodes in the description tree;
    formatting a fragment payload if required by the update command;
    calculating a navigation path that selects the set of nodes, wherein the navigation path is a content-based address that selects a set of nodes based on their content; and
    creating the fragment update unit from the navigation path, the update command, and the fragment payload if required.
  2. 2. The computerized method of claim 1, wherein formatting a fragment payload comprises including an attribute identification tag when an attribute is to be updated.
  3. 3. The computerized method of claim 1, wherein the fragment payload is not required when a fragment is to be deleted.
  4. 4. The computerized method of claim 1, wherein the content-based address is expressed as an XML XPath location path when the multimedia content description is coded in XML (extensible markup language).
  5. 5. The computerized method of claim 1 further comprising formatting a plurality of fragment payloads.
  6. 6. The computerized method of claim 1, wherein the fragment payload is selected from the group consisting of a fragment, a fragment reference, and an attribute.
  7. 7. The computerized method of claim 1, wherein the update command is selected from the group consisting of add, delete, and replace commands.
  8. 8. The computerized method of claim 1 further comprising:
    sending the fragment update unit as part of an access unit.
  9. 9. A computer-readable storage medium having executable instructions to cause a computer to execute a method comprising:
    selecting an update command to update a set of nodes in a tree representing a multimedia content description;
    formatting a fragment payload if required by the update command;
    calculating a navigation path that selects the set of nodes, wherein the navigation path is a content-based address that selects a set of nodes based on their content; and
    creating the fragment update unit from the navigation path, the update command, and the fragment payload if required.
  10. 10. The computer-readable storage medium of claim 9, wherein formatting a fragment payload comprises including an attribute identification tag when an attribute is to be updated.
  11. 11. The computer-readable storage medium of claim 9, wherein the fragment payload is not required when a fragment is to be deleted.
  12. 12. The computer-readable storage medium of claim 9, wherein the content-based address is expressed as an XML XPath location path when the multimedia content description is coded in XML (extensible markup language).
  13. 13. The computer-readable storage medium of claim 9, wherein the method further comprises formatting a plurality of fragment payloads.
  14. 14. The computer-readable storage medium of claim 9, wherein the fragment payload is selected from the group consisting of a fragment, a fragment reference, and an attribute.
  15. 15. The computer-readable storage medium of claim 9, wherein the update command is selected from the group consisting of add, delete, and replace commands.
  16. 16. The computer-readable storage medium of claim 9, wherein the method further comprises:
    sending the fragment update unit as part of an access unit.
  17. 17. A system for updating a multimedia content description represented as a description tree, the system comprising:
    a processor coupled to a bus;
    a memory coupled to the processor through the bus; and
    an encode process executed by the processor from the memory to cause the processor
    to select an update command to update a set of nodes in the tree,
    to format a fragment payload if required by the update command,
    to calculate a navigation path that selects the set of nodes, wherein the navigation path is a content-based address that selects a set of nodes based on their content, and
    to create the fragment update unit from the navigation path, the update command, and the fragment payload if required.
  18. 18. The system of claim 17, wherein the encode process further causes the processor to include an attribute identification tag when an attribute is to be updated to format a fragment payload.
  19. 19. The system of claim 17, wherein the fragment payload is not required when a fragment is to be deleted.
  20. 20. The system of claim 17, wherein the encode process further causes the processor to format a plurality of fragment payloads.
  21. 21. The system of claim 17, wherein the fragment payload is selected from the group consisting of a fragment, a fragment reference, and an attribute.
  22. 22. The system of claim 17, wherein the update command is selected from the group consisting of add, delete, and replace commands.
  23. 23. The system of claim 17, wherein the system further comprises a communications interface coupled to the processor through the bus and further coupled to a communications medium and the encode process further causes the processor to send the fragment update unit as part of an access unit through the communications interface.
US12749442 2001-03-01 2010-03-29 Mulitple updates to content descriptions using a single command Abandoned US20100185938A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US27279601 true 2001-03-01 2001-03-01
US30500901 true 2001-07-11 2001-07-11
US10086275 US7689901B2 (en) 2001-03-01 2002-02-28 Multiple updates to content descriptions using a single command
US12749442 US20100185938A1 (en) 2001-03-01 2010-03-29 Mulitple updates to content descriptions using a single command

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US12749442 US20100185938A1 (en) 2001-03-01 2010-03-29 Mulitple updates to content descriptions using a single command

Publications (1)

Publication Number Publication Date
US20100185938A1 true true US20100185938A1 (en) 2010-07-22

Family

ID=27375366

Family Applications (2)

Application Number Title Priority Date Filing Date
US10086275 Expired - Fee Related US7689901B2 (en) 2001-03-01 2002-02-28 Multiple updates to content descriptions using a single command
US12749442 Abandoned US20100185938A1 (en) 2001-03-01 2010-03-29 Mulitple updates to content descriptions using a single command

Family Applications Before (1)

Application Number Title Priority Date Filing Date
US10086275 Expired - Fee Related US7689901B2 (en) 2001-03-01 2002-02-28 Multiple updates to content descriptions using a single command

Country Status (1)

Country Link
US (2) US7689901B2 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090249321A1 (en) * 2008-03-25 2009-10-01 Mandyam Giridhar D Apparatus and methods for widget update scheduling
US20120265836A1 (en) * 2011-04-15 2012-10-18 Hitachi, Ltd. File sharing system and file sharing method
US9069575B2 (en) 2008-03-25 2015-06-30 Qualcomm Incorporated Apparatus and methods for widget-related memory management
US9110685B2 (en) 2008-03-25 2015-08-18 Qualcomm, Incorporated Apparatus and methods for managing widgets in a wireless communication environment
US9269059B2 (en) 2008-03-25 2016-02-23 Qualcomm Incorporated Apparatus and methods for transport optimization for widget content delivery
US9747141B2 (en) 2008-03-25 2017-08-29 Qualcomm Incorporated Apparatus and methods for widget intercommunication in a wireless communication environment

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1401188B (en) * 2000-10-17 2011-06-08 皇家菲利浦电子有限公司 Binary format for MPEG-7 instances
FR2825556A1 (en) * 2001-05-31 2002-12-06 Koninkl Philips Electronics Nv Generation of a description in a markup language of a structure of multimedia content
EP1552427A4 (en) 2002-06-13 2009-12-16 Mark Logic Corp Parent-child query indexing for xml databases
US7127469B2 (en) * 2002-06-13 2006-10-24 Mark Logic Corporation XML database mixed structural-textual classification system
US20040060006A1 (en) * 2002-06-13 2004-03-25 Cerisent Corporation XML-DB transactional update scheme
JP2004318188A (en) * 2002-09-26 2004-11-11 Victor Co Of Japan Ltd Receiving program of structured data
DE10309336B4 (en) * 2003-03-04 2005-11-24 Siemens Ag A method for encoding a structured document
US7315852B2 (en) * 2003-10-31 2008-01-01 International Business Machines Corporation XPath containment for index and materialized view matching
US7681114B2 (en) * 2003-11-21 2010-03-16 Bridgeborn, Llc Method of authoring, deploying and using interactive, data-driven two or more dimensional content
US7802015B2 (en) * 2004-01-26 2010-09-21 Tantalus Systems Corp. Communications system of heterogeneous elements
DE102004043269A1 (en) * 2004-09-07 2006-03-23 Siemens Ag Method for encoding an XML-based document
DE102004044164A1 (en) * 2004-09-13 2006-03-30 Siemens Ag Method and apparatus for encoding XML documents
US9171100B2 (en) 2004-09-22 2015-10-27 Primo M. Pettovello MTree an XPath multi-axis structure threaded index
US7664742B2 (en) 2005-11-14 2010-02-16 Pettovello Primo M Index data structure for a peer-to-peer network
US7895189B2 (en) * 2007-06-28 2011-02-22 International Business Machines Corporation Index exploitation
US8086597B2 (en) * 2007-06-28 2011-12-27 International Business Machines Corporation Between matching
US8631028B1 (en) 2009-10-29 2014-01-14 Primo M. Pettovello XPath query processing improvements
CN101969551B (en) * 2010-09-26 2014-04-09 中兴通讯股份有限公司 Method and system for fragmenting code streams in internet protocol television (IPTV) system
CN102356394B (en) * 2011-08-23 2013-09-11 华为技术有限公司 Document updating method and device
CN104376008A (en) * 2013-08-14 2015-02-25 深圳市众鸿科技股份有限公司 Method for replacing XML (extensive markup language) absolute path

Citations (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5325449A (en) * 1992-05-15 1994-06-28 David Sarnoff Research Center, Inc. Method for fusing images and apparatus therefor
US5495292A (en) * 1993-09-03 1996-02-27 Gte Laboratories Incorporated Inter-frame wavelet transform coder for color video compression
US5579471A (en) * 1992-11-09 1996-11-26 International Business Machines Corporation Image query system and method
US6079566A (en) * 1997-04-07 2000-06-27 At&T Corp System and method for processing object-based audiovisual information
US6236395B1 (en) * 1999-02-01 2001-05-22 Sharp Laboratories Of America, Inc. Audiovisual information management system
US6345279B1 (en) * 1999-04-23 2002-02-05 International Business Machines Corporation Methods and apparatus for adapting multimedia content for client devices
US6356567B2 (en) * 1997-09-26 2002-03-12 International Business Machines Corporation Embedded clock recovery and difference filtering for an MPEG-2 compliant transport stream
US6377957B1 (en) * 1998-12-29 2002-04-23 Sun Microsystems, Inc. Propogating updates efficiently in hierarchically structured date
US6388688B1 (en) * 1999-04-06 2002-05-14 Vergics Corporation Graph-based visual navigation through spatial environments
US6393427B1 (en) * 1999-03-22 2002-05-21 Nec Usa, Inc. Personalized navigation trees
US6411724B1 (en) * 1999-07-02 2002-06-25 Koninklijke Philips Electronics N.V. Using meta-descriptors to represent multimedia information
US20020157112A1 (en) * 2000-03-13 2002-10-24 Peter Kuhn Method and apparatus for generating compact transcoding hints metadata
US6490370B1 (en) * 1999-01-28 2002-12-03 Koninklijke Philips Electronics N.V. System and method for describing multimedia content
US6492998B1 (en) * 1998-12-05 2002-12-10 Lg Electronics Inc. Contents-based video story browsing system
US20030009472A1 (en) * 2001-07-09 2003-01-09 Tomohiro Azami Method related to structured metadata
US6564263B1 (en) * 1998-12-04 2003-05-13 International Business Machines Corporation Multimedia content description framework
US20030093790A1 (en) * 2000-03-28 2003-05-15 Logan James D. Audio and video program recording, editing and playback systems using metadata
US6593936B1 (en) * 1999-02-01 2003-07-15 At&T Corp. Synthetic audiovisual description scheme, method and system for MPEG-7
US6748382B1 (en) * 1999-01-28 2004-06-08 International Business Machines Corporation Method for describing media assets for their management
US6751623B1 (en) * 1998-01-26 2004-06-15 At&T Corp. Flexible interchange of coded multimedia facilitating access and streaming
US20040139393A1 (en) * 2000-12-22 2004-07-15 Heuer Joerg Method for improving functionality of the binary representation of mpeg-7 and of other xml-based contents descriptions
US6772180B1 (en) * 1999-01-22 2004-08-03 International Business Machines Corporation Data representation schema translation through shared examples
US6847980B1 (en) * 1999-07-03 2005-01-25 Ana B. Benitez Fundamental entity-relationship models for the generic audio visual data signal description
US6966027B1 (en) * 1999-10-04 2005-11-15 Koninklijke Philips Electronics N.V. Method and apparatus for streaming XML content
US6995765B2 (en) * 2001-07-13 2006-02-07 Vicarious Visions, Inc. System, method, and computer program product for optimization of a scene graph
US7076728B2 (en) * 2000-12-22 2006-07-11 International Business Machines Corporation Method and apparatus for end-to-end content publishing system using XML with an object dependency graph
US7143434B1 (en) * 1998-11-06 2006-11-28 Seungyup Paek Video description system and method
US7185049B1 (en) * 1999-02-01 2007-02-27 At&T Corp. Multimedia integration description scheme, method and system for MPEG-7

Patent Citations (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5325449A (en) * 1992-05-15 1994-06-28 David Sarnoff Research Center, Inc. Method for fusing images and apparatus therefor
US5579471A (en) * 1992-11-09 1996-11-26 International Business Machines Corporation Image query system and method
US5495292A (en) * 1993-09-03 1996-02-27 Gte Laboratories Incorporated Inter-frame wavelet transform coder for color video compression
US6079566A (en) * 1997-04-07 2000-06-27 At&T Corp System and method for processing object-based audiovisual information
US6356567B2 (en) * 1997-09-26 2002-03-12 International Business Machines Corporation Embedded clock recovery and difference filtering for an MPEG-2 compliant transport stream
US6751623B1 (en) * 1998-01-26 2004-06-15 At&T Corp. Flexible interchange of coded multimedia facilitating access and streaming
US7143434B1 (en) * 1998-11-06 2006-11-28 Seungyup Paek Video description system and method
US6564263B1 (en) * 1998-12-04 2003-05-13 International Business Machines Corporation Multimedia content description framework
US6492998B1 (en) * 1998-12-05 2002-12-10 Lg Electronics Inc. Contents-based video story browsing system
US6377957B1 (en) * 1998-12-29 2002-04-23 Sun Microsystems, Inc. Propogating updates efficiently in hierarchically structured date
US6772180B1 (en) * 1999-01-22 2004-08-03 International Business Machines Corporation Data representation schema translation through shared examples
US6748382B1 (en) * 1999-01-28 2004-06-08 International Business Machines Corporation Method for describing media assets for their management
US6490370B1 (en) * 1999-01-28 2002-12-03 Koninklijke Philips Electronics N.V. System and method for describing multimedia content
US6236395B1 (en) * 1999-02-01 2001-05-22 Sharp Laboratories Of America, Inc. Audiovisual information management system
US6593936B1 (en) * 1999-02-01 2003-07-15 At&T Corp. Synthetic audiovisual description scheme, method and system for MPEG-7
US7185049B1 (en) * 1999-02-01 2007-02-27 At&T Corp. Multimedia integration description scheme, method and system for MPEG-7
US6393427B1 (en) * 1999-03-22 2002-05-21 Nec Usa, Inc. Personalized navigation trees
US6388688B1 (en) * 1999-04-06 2002-05-14 Vergics Corporation Graph-based visual navigation through spatial environments
US6345279B1 (en) * 1999-04-23 2002-02-05 International Business Machines Corporation Methods and apparatus for adapting multimedia content for client devices
US6411724B1 (en) * 1999-07-02 2002-06-25 Koninklijke Philips Electronics N.V. Using meta-descriptors to represent multimedia information
US6847980B1 (en) * 1999-07-03 2005-01-25 Ana B. Benitez Fundamental entity-relationship models for the generic audio visual data signal description
US6966027B1 (en) * 1999-10-04 2005-11-15 Koninklijke Philips Electronics N.V. Method and apparatus for streaming XML content
US20020157112A1 (en) * 2000-03-13 2002-10-24 Peter Kuhn Method and apparatus for generating compact transcoding hints metadata
US20030093790A1 (en) * 2000-03-28 2003-05-15 Logan James D. Audio and video program recording, editing and playback systems using metadata
US7233953B2 (en) * 2000-12-22 2007-06-19 Siemens Aktiengesellschaft Method for improving functionality of the binary representation of MPEG-7 and of other XML-based contents descriptions
US7076728B2 (en) * 2000-12-22 2006-07-11 International Business Machines Corporation Method and apparatus for end-to-end content publishing system using XML with an object dependency graph
US20040139393A1 (en) * 2000-12-22 2004-07-15 Heuer Joerg Method for improving functionality of the binary representation of mpeg-7 and of other xml-based contents descriptions
US20030009472A1 (en) * 2001-07-09 2003-01-09 Tomohiro Azami Method related to structured metadata
US6995765B2 (en) * 2001-07-13 2006-02-07 Vicarious Visions, Inc. System, method, and computer program product for optimization of a scene graph

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090249321A1 (en) * 2008-03-25 2009-10-01 Mandyam Giridhar D Apparatus and methods for widget update scheduling
US9600261B2 (en) * 2008-03-25 2017-03-21 Qualcomm Incorporated Apparatus and methods for widget update scheduling
US9747141B2 (en) 2008-03-25 2017-08-29 Qualcomm Incorporated Apparatus and methods for widget intercommunication in a wireless communication environment
US9069575B2 (en) 2008-03-25 2015-06-30 Qualcomm Incorporated Apparatus and methods for widget-related memory management
US9110685B2 (en) 2008-03-25 2015-08-18 Qualcomm, Incorporated Apparatus and methods for managing widgets in a wireless communication environment
US9269059B2 (en) 2008-03-25 2016-02-23 Qualcomm Incorporated Apparatus and methods for transport optimization for widget content delivery
US9251163B2 (en) 2011-04-15 2016-02-02 Hitachi, Ltd. File sharing system and file sharing method
US20120265836A1 (en) * 2011-04-15 2012-10-18 Hitachi, Ltd. File sharing system and file sharing method
US8838721B2 (en) * 2011-04-15 2014-09-16 Hitachi, Ltd. File sharing system and file sharing method

Also Published As

Publication number Publication date Type
US7689901B2 (en) 2010-03-30 grant
US20020170070A1 (en) 2002-11-14 application

Similar Documents

Publication Publication Date Title
Kosch Distributed multimedia database technologies supported by MPEG-7 and MPEG-21
US6990497B2 (en) Dynamic streaming media management
US6151598A (en) Digital dictionary with a communication system for the creating, updating, editing, storing, maintaining, referencing, and managing the digital dictionary
US6792616B1 (en) System and method for providing a plurality of programming services in a television system
US7370115B2 (en) Method of controlling terminal of MPEG-4 system using caching mechanism
US20030115219A1 (en) Method, system, and program for storing data in a data store
US6320600B1 (en) Web-based video-editing method and system using a high-performance multimedia software library
US5818935A (en) Internet enhanced video system
US20040003400A1 (en) System and method for construction, delivery and display of iTV content
US6912726B1 (en) Method and apparatus for integrating hyperlinks in video
US6573907B1 (en) Network distribution and management of interactive video and multi-media containers
US20050210145A1 (en) Delivering and processing multimedia bookmark
US20030009472A1 (en) Method related to structured metadata
US7143347B2 (en) Method and apparatus for reformatting of content for display on interactive television
US20060062059A1 (en) Method and apparatus for meta-data storage and retrieval
US20050283798A1 (en) Client-server architectures and methods for zoomable user interfaces
US7203692B2 (en) Transcoding between content data and description data
US6225993B1 (en) Video on demand applet method and apparatus for inclusion of motion video in multimedia documents
US20130024906A9 (en) System and method for construction, delivery and display of itv content
US20120128241A1 (en) System and method for indexing object in image
Soares et al. Ginga-NCL: the declarative environment of the Brazilian digital TV system
US7143434B1 (en) Video description system and method
US7340457B1 (en) Apparatus and method to facilitate the customization of television content with supplemental data
US6925474B2 (en) Video information retrieval
US20020138517A1 (en) Binary format for MPEG-7 instances