CA2229578A1 - Dynamic allocation of bandwidth for transmission of audio signals and a video signal - Google Patents

Dynamic allocation of bandwidth for transmission of audio signals and a video signal

Info

Publication number
CA2229578A1
CA2229578A1 CA002229578A CA2229578A CA2229578A1 CA 2229578 A1 CA2229578 A1 CA 2229578A1 CA 002229578 A CA002229578 A CA 002229578A CA 2229578 A CA2229578 A CA 2229578A CA 2229578 A1 CA2229578 A1 CA 2229578A1
Authority
CA
Canada
Prior art keywords
slots
allocated
video
audio
carrier
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.)
Granted
Application number
CA002229578A
Other languages
French (fr)
Other versions
CA2229578C (en
Inventor
Larry W. Hinderks
Lawrence Fish
Ian Lerner
Roswell Roberts
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.)
Starguide Digital Networks Inc
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to CA002390976A priority Critical patent/CA2390976A1/en
Publication of CA2229578A1 publication Critical patent/CA2229578A1/en
Application granted granted Critical
Publication of CA2229578C publication Critical patent/CA2229578C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/16—Time-division multiplex systems in which the time allocation to individual channels within a transmission cycle is variable, e.g. to accommodate varying complexity of signals, to vary number of channels transmitted
    • H04J3/1682—Allocation of channels according to the instantaneous demands of the users, e.g. concentrated multiplexers, statistical multiplexers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/02—Channels characterised by the type of signal
    • H04L5/023—Multiplexing of multicarrier modulation signals
    • 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
    • H04N21/2368—Multiplexing of audio and 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
    • H04N21/238—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
    • H04N21/2385—Channel allocation; Bandwidth allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13332—Broadband, CATV, dynamic bandwidth allocation

Abstract

A method and apparatus are provided for dynamically allocated multiple slots within a multi-channel multi-carrier transmission system (60). The slots may be allocated sequentially or non-sequentially. The data transmission rate for each slot remains constant, while multiple slots may be allocated to a single user service (75). Each carrier signal contains header data regarding all other carriers associated with the transmission system (60) to identify the allocation of slots to user services (75). In an alternative embodiment, an encoding and transmitting system (500) is provided for transmitting one or more video and audio encoded signals (518, 520, 522, 524) in a time division multiplexed (526) manner along separate channels having fixed bandwidths.
Multiple audio channels may be transmitted simultaneously with a related single video channel, and vice versa. The time division multiplexed audio/video signals (532) may be transmitted over a single carrier or multiple carriers (528, 530).
CA002229578A 1995-08-16 1996-08-16 Dynamic allocation of bandwidth for transmission of audio signals and a video signal Expired - Fee Related CA2229578C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA002390976A CA2390976A1 (en) 1995-08-16 1996-08-16 Dynamic allocation of bandwidth for transmission of audio signals and a video signal

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US244595P 1995-08-16 1995-08-16
US60/002,445 1995-08-16
PCT/US1996/013400 WO1997007606A1 (en) 1995-08-16 1996-08-16 Dynamic allocation of bandwidth for transmission of audio signals and a video signal

Related Child Applications (1)

Application Number Title Priority Date Filing Date
CA002390976A Division CA2390976A1 (en) 1995-08-16 1996-08-16 Dynamic allocation of bandwidth for transmission of audio signals and a video signal

Publications (2)

Publication Number Publication Date
CA2229578A1 true CA2229578A1 (en) 1997-02-27
CA2229578C CA2229578C (en) 2003-02-11

Family

ID=21700802

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002229578A Expired - Fee Related CA2229578C (en) 1995-08-16 1996-08-16 Dynamic allocation of bandwidth for transmission of audio signals and a video signal

Country Status (8)

Country Link
US (3) US6049551A (en)
EP (1) EP0845176A4 (en)
JP (1) JPH11511313A (en)
CN (1) CN1195437A (en)
AU (1) AU697851B2 (en)
BR (1) BR9610270A (en)
CA (1) CA2229578C (en)
WO (1) WO1997007606A1 (en)

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EP0845176A1 (en) 1998-06-03
US6212201B1 (en) 2001-04-03
JPH11511313A (en) 1999-09-28
CN1195437A (en) 1998-10-07
CA2229578C (en) 2003-02-11
US6049551A (en) 2000-04-11
AU697851B2 (en) 1998-10-15
EP0845176A4 (en) 2001-09-12
US20010000457A1 (en) 2001-04-26
BR9610270A (en) 1999-07-06
WO1997007606A1 (en) 1997-02-27
AU6778696A (en) 1997-03-12

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