TW287342B - - Google Patents

Info

Publication number
TW287342B
TW287342B TW84112787A TW84112787A TW287342B TW 287342 B TW287342 B TW 287342B TW 84112787 A TW84112787 A TW 84112787A TW 84112787 A TW84112787 A TW 84112787A TW 287342 B TW287342 B TW 287342B
Authority
TW
Taiwan
Prior art keywords
program
category code
television
television signal
preclude
Prior art date
Application number
TW84112787A
Other languages
Chinese (zh)
Original Assignee
Philips Electronics Nv
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 Philips Electronics Nv filed Critical Philips Electronics Nv
Application granted granted Critical
Publication of TW287342B publication Critical patent/TW287342B/zh

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/222—Studio circuitry; Studio devices; Studio equipment
    • H04N5/262—Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects ; Cameras specially adapted for the electronic generation of special effects
    • H04N5/2622—Signal amplitude transition in the zone between image portions, e.g. soft edges
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2340/00—Aspects of display data processing
    • G09G2340/10—Mixing of images, i.e. displayed pixel being the result of an operation, e.g. adding, on the corresponding input pixels

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Image Generation (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)

Abstract

An encoding apparatus and an associated decoding apparatus for a television signal having embedded viewer access control data. A program category code is inserted into a television signal by the encoding apparatus, identifying at least one attribute of program content of an associated television program. An individual viewer may preclude receipt of television programming identified by a corresponding program category code as containing a program content attribute for which the individual viewer has chosen to preclude viewing. The decoding apparatus compares the program category code embedded within a television program with a user category code indicating at least one of the attributes of programming content for which the individual user has elected to preclude receipt of television programming. Viewing of the television signal is precluded when the television signal includes a program category code corresponding to the user category code.
TW84112787A 1994-12-08 1995-11-30 TW287342B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GBGB9424808.5A GB9424808D0 (en) 1994-12-08 1994-12-08 Digital image anti-aliasing

Publications (1)

Publication Number Publication Date
TW287342B true TW287342B (en) 1996-10-01

Family

ID=10765632

Family Applications (1)

Application Number Title Priority Date Filing Date
TW84112787A TW287342B (en) 1994-12-08 1995-11-30

Country Status (3)

Country Link
GB (1) GB9424808D0 (en)
TW (1) TW287342B (en)
WO (1) WO1996018264A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6084982A (en) * 1997-12-17 2000-07-04 Philips Electronics North America Corp. Method of chroma-keying for a digital video compression system
US20020122045A1 (en) * 1998-12-19 2002-09-05 Morgan Woodson Font anti-aliasing system

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63114472A (en) * 1986-10-31 1988-05-19 Victor Co Of Japan Ltd Picture processor
US4887159A (en) * 1987-03-26 1989-12-12 The Grass Valley Group Inc. Shadow visual effects wipe generator
GB2230399B (en) * 1989-04-07 1993-09-08 Sony Corp Controlling the combining of video signals
EP0419126A3 (en) * 1989-09-22 1992-03-18 Ampex Corporation System for generating anti-aliased video signal
DE4017880A1 (en) * 1990-06-02 1991-12-05 Broadcast Television Syst Edge correction in two=dimensional pixel distribution - using edge-parallel correction lines with intermediate pixels corrected and edge shape to determine corrections

Also Published As

Publication number Publication date
GB9424808D0 (en) 1995-02-08
WO1996018264A1 (en) 1996-06-13

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