WO2003048898A3 - Fast memory access to digital data - Google Patents

Fast memory access to digital data Download PDF

Info

Publication number
WO2003048898A3
WO2003048898A3 PCT/US2002/037943 US0237943W WO03048898A3 WO 2003048898 A3 WO2003048898 A3 WO 2003048898A3 US 0237943 W US0237943 W US 0237943W WO 03048898 A3 WO03048898 A3 WO 03048898A3
Authority
WO
WIPO (PCT)
Prior art keywords
data
memory
client
digital data
memory access
Prior art date
Application number
PCT/US2002/037943
Other languages
French (fr)
Other versions
WO2003048898A2 (en
Inventor
Khoi Hoang
Original Assignee
Prediwave Corp
Khoi Hoang
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 Prediwave Corp, Khoi Hoang filed Critical Prediwave Corp
Priority to AU2002365752A priority Critical patent/AU2002365752A1/en
Publication of WO2003048898A2 publication Critical patent/WO2003048898A2/en
Publication of WO2003048898A3 publication Critical patent/WO2003048898A3/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/16—Analogue secrecy systems; Analogue subscription systems
    • H04N7/162—Authorising the user terminal, e.g. by paying; Registering the use of a subscription channel, e.g. billing
    • H04N7/163—Authorising the user terminal, e.g. by paying; Registering the use of a subscription channel, e.g. billing by receiver means only
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F12/00—Accessing, addressing or allocating within memory systems or architectures
    • G06F12/02—Addressing or allocation; Relocation
    • G06F12/08—Addressing or allocation; Relocation in hierarchically structured memory systems, e.g. virtual memory systems
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/10527—Audio or video recording; Data buffering arrangements
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
    • G11B27/102—Programmed access in sequence to addressed parts of tracks of operating record carriers
    • G11B27/105—Programmed access in sequence to addressed parts of tracks of operating record carriers of operating discs
    • 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
    • H04N21/41—Structure of client; Structure of client peripherals
    • H04N21/426—Internal components of the client ; Characteristics thereof
    • H04N21/42661—Internal components of the client ; Characteristics thereof for reading from or writing on a magnetic storage medium, e.g. hard disk drive
    • 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
    • H04N21/433—Content storage operation, e.g. storage operation in response to a pause request, caching operations
    • H04N21/4331—Caching operations, e.g. of an advertisement for later insertion during playback
    • 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
    • H04N21/433—Content storage operation, e.g. storage operation in response to a pause request, caching operations
    • H04N21/4335—Housekeeping operations, e.g. prioritizing content for deletion because of storage space restrictions
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/10527—Audio or video recording; Data buffering arrangements
    • G11B2020/1062—Data buffering arrangements, e.g. recording or playback buffers
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/10527—Audio or video recording; Data buffering arrangements
    • G11B2020/1062—Data buffering arrangements, e.g. recording or playback buffers
    • G11B2020/1075—Data buffering arrangements, e.g. recording or playback buffers the usage of the buffer being restricted to a specific kind of data
    • G11B2020/10759—Data buffering arrangements, e.g. recording or playback buffers the usage of the buffer being restricted to a specific kind of data content data
    • G11B2020/10768—Data buffering arrangements, e.g. recording or playback buffers the usage of the buffer being restricted to a specific kind of data content data by pre-caching the initial portion of songs or other recorded or downloaded data for starting playback instantly
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00—Record carriers by type
    • G11B2220/20—Disc-shaped record carriers
    • G11B2220/25—Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
    • G11B2220/2508—Magnetic discs
    • G11B2220/2516—Hard disks
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00—Record carriers by type
    • G11B2220/40—Combinations of multiple record carriers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/78—Television signal recording using magnetic recording
    • H04N5/781—Television signal recording using magnetic recording on disks or drums
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/79—Processing of colour television signals in connection with recording
    • H04N9/80—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback
    • H04N9/804—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback involving pulse code modulation of the colour picture signal components
    • H04N9/8042—Transformation of the television signal for recording, e.g. modulation, frequency changing; Inverse transformation for playback involving pulse code modulation of the colour picture signal components involving data reduction
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/79—Processing of colour television signals in connection with recording
    • H04N9/87—Regeneration of colour television signals
    • H04N9/877—Regeneration of colour television signals by assembling picture element blocks in an intermediate memory

Abstract

A method and apparatus is afforded for providing fast memory access to digital data. Data is received from a data source and encoded (40). The data is then stored in a first memory (42) and a second memory (44). The first memory stores and delivers the data at a faster rate than the second memory. Request for the data is received from a client and the first memory is accessed to deliver the data to the client. Where the data is not available from the first memory, the second memory (44) is accessed for the data and the data is written to the first memory (42). The data is then delivered to the client following retrieval of the data from the first memory in accordance with the client request.
PCT/US2002/037943 2001-11-30 2002-11-26 Fast memory access to digital data WO2003048898A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2002365752A AU2002365752A1 (en) 2001-11-30 2002-11-26 Fast memory access to digital data

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US33492001P 2001-11-30 2001-11-30
US60/334,920 2001-11-30

Publications (2)

Publication Number Publication Date
WO2003048898A2 WO2003048898A2 (en) 2003-06-12
WO2003048898A3 true WO2003048898A3 (en) 2004-02-19

Family

ID=23309446

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2002/037943 WO2003048898A2 (en) 2001-11-30 2002-11-26 Fast memory access to digital data

Country Status (3)

Country Link
AU (1) AU2002365752A1 (en)
TW (1) TW200409544A (en)
WO (1) WO2003048898A2 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5414455A (en) * 1993-07-07 1995-05-09 Digital Equipment Corporation Segmented video on demand system
US5787472A (en) * 1995-07-31 1998-07-28 Ibm Corporation Disk caching system for selectively providing interval caching or segment caching of vided data
US5870551A (en) * 1996-04-08 1999-02-09 Lucent Technologies Inc. Lookahead buffer replacement method using ratio of clients access order offsets and buffer data block offsets
US6378036B2 (en) * 1999-03-12 2002-04-23 Diva Systems Corporation Queuing architecture including a plurality of queues and associated method for scheduling disk access requests for video content
US6434748B1 (en) * 1994-12-23 2002-08-13 Imedia Corporation Method and apparatus for providing VCR-like “trick mode” functions for viewing distributed video data

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5414455A (en) * 1993-07-07 1995-05-09 Digital Equipment Corporation Segmented video on demand system
US6434748B1 (en) * 1994-12-23 2002-08-13 Imedia Corporation Method and apparatus for providing VCR-like “trick mode” functions for viewing distributed video data
US5787472A (en) * 1995-07-31 1998-07-28 Ibm Corporation Disk caching system for selectively providing interval caching or segment caching of vided data
US5870551A (en) * 1996-04-08 1999-02-09 Lucent Technologies Inc. Lookahead buffer replacement method using ratio of clients access order offsets and buffer data block offsets
US6378036B2 (en) * 1999-03-12 2002-04-23 Diva Systems Corporation Queuing architecture including a plurality of queues and associated method for scheduling disk access requests for video content

Also Published As

Publication number Publication date
AU2002365752A8 (en) 2003-06-17
WO2003048898A2 (en) 2003-06-12
TW200409544A (en) 2004-06-01
AU2002365752A1 (en) 2003-06-17

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