GB2304016A - Subtitling video data - Google Patents

Subtitling video data

Info

Publication number
GB2304016A
GB2304016A GB9625754A GB9625754A GB2304016A GB 2304016 A GB2304016 A GB 2304016A GB 9625754 A GB9625754 A GB 9625754A GB 9625754 A GB9625754 A GB 9625754A GB 2304016 A GB2304016 A GB 2304016A
Authority
GB
United Kingdom
Prior art keywords
subtitling
generated
look
data
video signals
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.)
Withdrawn
Application number
GB9625754A
Other versions
GB9625754D0 (en
Inventor
David John Atkins
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.)
SCREEN SUBTITLING SYSTEMS Ltd
Original Assignee
SCREEN SUBTITLING SYSTEMS Ltd
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 SCREEN SUBTITLING SYSTEMS Ltd filed Critical SCREEN SUBTITLING SYSTEMS Ltd
Publication of GB9625754D0 publication Critical patent/GB9625754D0/en
Publication of GB2304016A publication Critical patent/GB2304016A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/41—Bandwidth or redundancy reduction
    • H04N1/411—Bandwidth or redundancy reduction for the transmission or storage or reproduction of two-tone pictures, e.g. black and white pictures
    • H04N1/413—Systems or arrangements allowing the picture to be reproduced without loss or modification of picture-information
    • H04N1/419—Systems or arrangements allowing the picture to be reproduced without loss or modification of picture-information in which encoding of the length of a succession of picture-elements of the same value along a scanning line is the only encoding step
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T9/00—Image coding
    • G06T9/005—Statistical coding, e.g. Huffman, run length coding
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
    • H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
    • H03M7/46—Conversion to or from run-length codes, i.e. by representing the number of consecutive digits, or groups of digits, of the same kind by a code word and a digit indicative of that kind
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/08—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division
    • H04N7/087—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division with signal insertion during the vertical blanking interval only
    • H04N7/088—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division with signal insertion during the vertical blanking interval only the inserted signal being digital
    • H04N7/0884—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division with signal insertion during the vertical blanking interval only the inserted signal being digital for the transmission of additional display-information, e.g. menu for programme or channel selection
    • H04N7/0885—Systems for the simultaneous or sequential transmission of more than one television signal, e.g. additional information signals, the signals occupying wholly or partially the same frequency band, e.g. by time division with signal insertion during the vertical blanking interval only the inserted signal being digital for the transmission of additional display-information, e.g. menu for programme or channel selection for the transmission of subtitles

Abstract

Subtitling data is generated for association with video signals. The subtitling data may be combined with the video signals, by placing it in vertical blanking periods for example, or it may be supplied over an associated data channel, particularly when the video signal has undergone digital compression. A representation of displayable characters are generated in the form of a pixel array and output codes are generated representing compressed lines of said array. Run-length encoding is performed by recursively addressing a look-up table and shifting new input data to provide addresses to said look-up table as required. The output codes are synchronised to the video frames for transmission, via terrestrial broadcast, cable or satellite, or for storage.
GB9625754A 1994-06-09 1995-06-09 Subtitling video data Withdrawn GB2304016A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9411615A GB2290430B (en) 1994-06-09 1994-06-09 Subtitling video data
PCT/GB1995/001353 WO1995034165A1 (en) 1994-06-09 1995-06-09 Subtitling video data

Publications (2)

Publication Number Publication Date
GB9625754D0 GB9625754D0 (en) 1997-01-29
GB2304016A true GB2304016A (en) 1997-03-05

Family

ID=10756500

Family Applications (2)

Application Number Title Priority Date Filing Date
GB9411615A Expired - Fee Related GB2290430B (en) 1994-06-09 1994-06-09 Subtitling video data
GB9625754A Withdrawn GB2304016A (en) 1994-06-09 1995-06-09 Subtitling video data

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB9411615A Expired - Fee Related GB2290430B (en) 1994-06-09 1994-06-09 Subtitling video data

Country Status (4)

Country Link
AU (1) AU2678595A (en)
CA (1) CA2192439A1 (en)
GB (2) GB2290430B (en)
WO (1) WO1995034165A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8599064B2 (en) * 2008-02-29 2013-12-03 Honeywell International Inc. Systems and methods for radar data communication

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2296148A (en) * 1994-11-28 1996-06-19 Snell & Wilcox Ltd Retaining sub-titles in a wide screen television display

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4264933A (en) * 1977-07-27 1981-04-28 Canon Kabushiki Kaisha Method and apparatus for facsimile recording
JPS5951653A (en) * 1982-09-17 1984-03-26 Fujitsu Ltd Data compression coding processing system
EP0149122A2 (en) * 1983-12-30 1985-07-24 International Business Machines Corporation A method for converting a bit map of an image to a run length or run end representation
EP0167023A2 (en) * 1984-06-29 1986-01-08 International Business Machines Corporation An improved method for converting a bit map of an image to a run lenght or run end representation

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61147677A (en) * 1984-12-21 1986-07-05 Mitsumi Electric Co Ltd Superimposing device
JP2637821B2 (en) * 1989-05-30 1997-08-06 シャープ株式会社 Superimpose device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4264933A (en) * 1977-07-27 1981-04-28 Canon Kabushiki Kaisha Method and apparatus for facsimile recording
JPS5951653A (en) * 1982-09-17 1984-03-26 Fujitsu Ltd Data compression coding processing system
EP0149122A2 (en) * 1983-12-30 1985-07-24 International Business Machines Corporation A method for converting a bit map of an image to a run length or run end representation
EP0167023A2 (en) * 1984-06-29 1986-01-08 International Business Machines Corporation An improved method for converting a bit map of an image to a run lenght or run end representation

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
'ANLANGE ZUR AUFBEREITUNG UNG EINBLENDUNG VON UNTERTITELN NACHDEM 4ENGLISCHEN TELETEXT-STANDARD' *
PATENT ABSTRACTS OF JAPAN vol. 8, no. 142 (E-254) 3 July 84 & JP 59 051 653 A (FUJITSU KK) 26 March 1984. See abstract *
RUNDFUNKTECHNISCHE MITTEILUNGEN. vol.22, no 1, Feb. 1978, NORDERSTEDT DE, pages 1-9, HOFMAN ET AL *
see p. 2 left column, line 1 - p. 3 right column, line 16 figure 3. *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8599064B2 (en) * 2008-02-29 2013-12-03 Honeywell International Inc. Systems and methods for radar data communication

Also Published As

Publication number Publication date
GB2290430B (en) 1998-08-05
AU2678595A (en) 1996-01-04
GB2290430A (en) 1995-12-20
GB9411615D0 (en) 1994-08-03
GB9625754D0 (en) 1997-01-29
WO1995034165A1 (en) 1995-12-14
CA2192439A1 (en) 1995-12-14
GB2290430A8 (en) 1998-05-21

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)