NZ500199A - Downloading a computer file from a transmitter via a receiver/decoder to a computer - Google Patents

Downloading a computer file from a transmitter via a receiver/decoder to a computer

Info

Publication number
NZ500199A
NZ500199A NZ500199A NZ50019997A NZ500199A NZ 500199 A NZ500199 A NZ 500199A NZ 500199 A NZ500199 A NZ 500199A NZ 50019997 A NZ50019997 A NZ 50019997A NZ 500199 A NZ500199 A NZ 500199A
Authority
NZ
New Zealand
Prior art keywords
blocks
computer
data
redundancy
groups
Prior art date
Application number
NZ500199A
Inventor
Eugene Meillaud
Jean-Bernard Gerard Mau Beuque
Original Assignee
Canal Plus Sa
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 Canal Plus Sa filed Critical Canal Plus Sa
Publication of NZ500199A publication Critical patent/NZ500199A/en

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
    • G06F11/08—Error detection or correction by redundancy in data representation, e.g. by using checking codes
    • G06F11/10—Adding special bits or symbols to the coded information, e.g. parity check, casting out 9's or 11's
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T9/00—Image coding
    • G06T9/007—Transform coding, e.g. discrete cosine transform
    • 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
    • H04N21/25—Management operations performed by the server for facilitating the content distribution or administrating data related to end-users or client devices, e.g. end-user or client device authentication, learning user preferences for recommending movies
    • H04N21/258—Client or end-user data management, e.g. managing client capabilities, user preferences or demographics, processing of multiple end-users preferences to derive collaborative data
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/16—Analogue secrecy systems; Analogue subscription systems
    • H04N7/173—Analogue secrecy systems; Analogue subscription systems with two-way working, e.g. subscriber sending a programme selection signal
    • H04N7/17309—Transmission or handling of upstream communications

Abstract

The file, or a part thereof, is divided into a series of R groups of data, and each of the groups is subdivided into a series of C blocks of the data. A group of C redundancy blocks is generated, each redundancy block being related to respective ones of the data blocks in the R groups by being a bitwise exclusive OR or NOR of those data blocks. Each of the groups of data blocks and the group of redundancy blocks are repeatedly transmitted from the transmitter. At the receiver/decoder, at least some of the transmitted blocks are received and supplied to the computer. The computer is used to determine for at least one of the received redundancy blocks whether that redundancy block and all except one of its respective data blocks have been received, and if so regenerate said one data block. Lost data blocks can be regenerated without waiting for retransmitting.
NZ500199A 1997-03-21 1997-04-25 Downloading a computer file from a transmitter via a receiver/decoder to a computer NZ500199A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP97400650 1997-03-21
PCT/EP1997/002109 WO1998043162A1 (en) 1997-03-21 1997-04-25 Downloading a computer file from a transmitter via a receiver/decoder to a computer

Publications (1)

Publication Number Publication Date
NZ500199A true NZ500199A (en) 2002-08-28

Family

ID=26070204

Family Applications (1)

Application Number Title Priority Date Filing Date
NZ500199A NZ500199A (en) 1997-03-21 1997-04-25 Downloading a computer file from a transmitter via a receiver/decoder to a computer

Country Status (14)

Country Link
EP (1) EP1010068A1 (en)
JP (1) JP2001521692A (en)
CN (1) CN1254422A (en)
AU (1) AU739663B2 (en)
BR (1) BR9714590A (en)
CA (1) CA2284147A1 (en)
HU (1) HUP0001481A3 (en)
IL (1) IL131933A0 (en)
NO (1) NO994533L (en)
NZ (1) NZ500199A (en)
PL (1) PL335779A1 (en)
TR (1) TR199902272T2 (en)
WO (1) WO1998043162A1 (en)
ZA (1) ZA973606B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3630037B2 (en) 1999-10-06 2005-03-16 日本電気株式会社 DSM-CC carousel receiving apparatus, receiving method used therefor, and recording medium recording the control program thereof
WO2004034674A1 (en) * 2002-09-30 2004-04-22 Popwire.Com Dynamic transferring software/protocol

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2033699B (en) * 1978-11-01 1982-11-10 Philips Electronic Associated Error detection
CA1177558A (en) * 1982-04-15 1984-11-06 Groupe Videotron Ltee. (Le) Cable network data transmission system
US4660202A (en) * 1985-04-29 1987-04-21 Zenith Electronics Corporation Error protection method for packeted data
US4985895A (en) * 1988-11-14 1991-01-15 Wegener Communications, Inc. Remote controlled receiving system apparatus and method
US5003591A (en) * 1989-05-25 1991-03-26 General Instrument Corporation Functionally modifiable cable television converter system
KR950001439B1 (en) * 1990-04-30 1995-02-24 삼성전자주식회사 Coding apparatus of error correction
EP0680216B1 (en) * 1994-04-28 2007-11-21 OpenTV, Inc. Apparatus and method for formulating an interactive signal

Also Published As

Publication number Publication date
HUP0001481A3 (en) 2001-01-29
JP2001521692A (en) 2001-11-06
ZA973606B (en) 1998-09-07
IL131933A0 (en) 2001-03-19
NO994533D0 (en) 1999-09-17
BR9714590A (en) 2002-09-17
AU2888097A (en) 1998-10-20
PL335779A1 (en) 2000-05-22
CN1254422A (en) 2000-05-24
TR199902272T2 (en) 2000-01-21
HUP0001481A2 (en) 2000-09-28
WO1998043162A1 (en) 1998-10-01
NO994533L (en) 1999-11-22
EP1010068A1 (en) 2000-06-21
AU739663B2 (en) 2001-10-18
CA2284147A1 (en) 1998-10-01

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Legal Events

Date Code Title Description
PSEA Patent sealed