WO2000038170A2 - Systeme de substitution de fontes - Google Patents

Systeme de substitution de fontes Download PDF

Info

Publication number
WO2000038170A2
WO2000038170A2 PCT/US1999/029302 US9929302W WO0038170A2 WO 2000038170 A2 WO2000038170 A2 WO 2000038170A2 US 9929302 W US9929302 W US 9929302W WO 0038170 A2 WO0038170 A2 WO 0038170A2
Authority
WO
WIPO (PCT)
Prior art keywords
font
information
database
style
transmitted
Prior art date
Application number
PCT/US1999/029302
Other languages
English (en)
Other versions
WO2000038170A3 (fr
Inventor
Dennis Fleming
Original Assignee
Powertv, Inc.
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 Powertv, Inc. filed Critical Powertv, Inc.
Priority to KR1020017007621A priority Critical patent/KR20010093190A/ko
Publication of WO2000038170A2 publication Critical patent/WO2000038170A2/fr
Publication of WO2000038170A3 publication Critical patent/WO2000038170A3/fr

Links

Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
    • G09G5/22—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators characterised by the display of characters or indicia using display control signals derived from coded signals representing the characters or indicia, e.g. with a character-code memory
    • G09G5/24—Generation of individual character patterns
    • 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
    • H04N21/431—Generation of visual interfaces for content selection or interaction; Content or additional data rendering
    • H04N21/4312—Generation of visual interfaces for content selection or interaction; Content or additional data rendering involving specific graphical features, e.g. screen layout, special fonts or colors, blinking icons, highlights or animations
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H04N5/445—Receiver circuitry for the reception of television signals according to analogue transmission standards for displaying additional information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H04N5/445—Receiver circuitry for the reception of television signals according to analogue transmission standards for displaying additional information
    • H04N5/44504—Circuit details of the additional information generator, e.g. details of the character or graphics signal generator, overlay mixing circuits
    • 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

Definitions

  • the present invention relates generally to an operating system for a multimedia system
  • fonts on a graphics display device such as a television.
  • top terminal or "box.”
  • Interactive digital set-top terminals provide an open platform for
  • Such set-top terminals are equipped with numerous abilities including the
  • the set-top terminal performance is restricted by requirements such as " me
  • fonts or letters to be displayed and overlaid on a television screen.
  • the fonts are designed
  • font images are incorporated as post-process fonts in
  • Post-process fonts add complexity to the production of a video signal because an art
  • a set-top terminal has a limited amount of memory which may be utilized as a font style
  • the present invention incorporates an independent font engine in the set-top terminal
  • the font engine will analyze the unknown font style and
  • the font style database is dynamic and can be purged and repopulated with new font
  • font style database can be done through the transmission of font styles to the set-top
  • Figure 1 is a hardware diagram of an exemplary digital set-top terminal
  • Figure 2 is a block diagram of the operating system, showing the font
  • substitution engine as one component thereof.
  • FIG. 3 is a detailed block diagram showing the components of the font
  • consumer multimedia clients including, but not limited to, intelligent televisions,
  • the font substitution engine of the invention is preferably embedded as a component
  • font substitution engine is not limited to the set-top terminal environment
  • Figure 1 illustrates the basic components of a
  • the set-top terminal 10 is coupled to the cable and
  • the set-top terminal is also
  • telecommunications infrastructure 12 and the set-top terminal 10 establishes a variety of
  • the incoming cable 14 may support a plurality of different channels. For purposes of
  • cable 14 has been shown as supplying three different logical channels: (a) a set of
  • channels are typically carried on the same physical wire or fiber-optic cable. Thus the three separate channels shown in Figure 1 are for illustration purposes only. *
  • the analog and digital TV channels support one-way communication
  • communication channels are two-way channels, supporting bi-directional communication
  • the various sets of channels supplied via cable 14 are distinguished by frequency.
  • Digital tuner 20 selects which frequency, and thus to which channel, the set-top terminal is
  • Analog TV channels are sent directly from tuner 20 to the multimedia compositor circuit
  • the compositor circuit formulates the RF signal supplied through cable 16 to the television
  • the television is tuned to a pre-assigned channel to properly receive the RF signal
  • Digital TV channels are also sent to compositor 22, although they are first processed
  • the digital TV signal is first
  • quadrature amplitude modulated (QAM) data link processor 26 is processed through the quadrature amplitude modulated (QAM) data link processor 26 and then
  • the transport circuitry 29 extracts the desired digital TV
  • MPEG audio are then separately processed by the circuitry 30.
  • QPSK quaternary phase shift keying
  • CPU 34 central processing unit 34, which has associated CPU RAM 36.
  • the multimedia compositor 22 generates a display image from video and audio input
  • composition of graphics and video includes translucent alpha-blending of the two, scaling
  • multimedia compositor combines application audio with MPEG and analog broadcast audio
  • QPSK channels provide transparent two-way
  • the presently preferred set-top terminal is bundled with an operating system whose
  • Figure 2 provides a high-level view of the
  • the operating system consists of layers of interconnected
  • Each module executes specific tasks concerning the
  • the multitasking operating system is designed to address the
  • the operating system provides an open, scalable platform for developing and
  • a kernel and memory manager residing in the core layer 42 provide the bale
  • the kernel has also been created to
  • a memory manager provides an efficient allocation scheme to enable the best performance from
  • the memory model requires little memory
  • the core layer 42 also provides an integrated event system and a
  • an application support layer 116 Built on top of the core layer 42 is an application support layer 116. This set of support
  • At the highest application level 44 at least one application, referred to as a resident application
  • the application level also provides the necessary
  • the applications 44 are launched by the application manager 46 and thereafter
  • Examples of applications 44 include on-screen
  • top terminal may be provided with a suitable card interface jack 50 for receiving a suitable
  • Pertinent to the present invention is the font substitution engine that may be
  • the font substitution engine is designed primarily to allow the operating system to
  • broadcasters frequently include messages or advertisements as fonts or letters to be displayed
  • the fonts are designed by the broadcasters to have a
  • the font substitution engine applies a set of font substitution rules to supply a
  • substitution engine of the invention is font engine independent. Rather than store font
  • font engine-specific form e.g. Postscript, Agfa, TrueType
  • font style data is stored in a font style database that the font substitution engine accesses to select the appropriate substitution font.
  • the font style database stores font style attributes, such as point size, stroke weight,
  • font style database is not limited to these attributes.
  • the font style database 62 stores font
  • This information is used to select the correct font style from the
  • the font style is not stored in the database 62, the font
  • the font substitution engine flexibly allows information about new fonts to be added
  • the font registration module When information about a new font is added, the font registration module
  • font attributes specified by the user and records them in database 62.
  • font attributes specified by the user In a typical system, font
  • style information will be stored in database 62 for all popularly encountered fonts. Because the system is font engine independent, the database can store style information about a
  • the font substitution engine provides an engine interface 68 that applications may
  • the font request module 70 accesses the database 62 and determines the font
  • the engine determines the font style attributes associated with the requested font.
  • the database 62 is dynamic and can be purged and repopulated with new font styles.
  • the transmitted font information can be stored in the database 62 for future use if it is

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Graphics (AREA)
  • Controls And Circuits For Display Device (AREA)

Abstract

L'invention porte sur un procédé de présentation de fontes sur un écran graphique comportant les étapes suivantes: extraction d'informations sur une fonte ayant été transmise; comparaison desdites informations à des informations relatives aux fontes stockées dans une base de données de fontes pour y sélectionner une fonte correspondante en vue de son affichage; et substitution d'une fonte de remplacement de la base de données à la fonte inconnue transmise en comparant les informations sur cette fonte à la base de données en vue de sélectionner une fonte de remplacement approchant de la fonte transmise.
PCT/US1999/029302 1998-12-18 1999-12-13 Systeme de substitution de fontes WO2000038170A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020017007621A KR20010093190A (ko) 1998-12-18 1999-12-13 폰트 대체 시스템

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US21611398A 1998-12-18 1998-12-18
US09/216,113 1998-12-18

Publications (2)

Publication Number Publication Date
WO2000038170A2 true WO2000038170A2 (fr) 2000-06-29
WO2000038170A3 WO2000038170A3 (fr) 2000-09-14

Family

ID=22805753

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1999/029302 WO2000038170A2 (fr) 1998-12-18 1999-12-13 Systeme de substitution de fontes

Country Status (2)

Country Link
KR (1) KR20010093190A (fr)
WO (1) WO2000038170A2 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1445954A1 (fr) * 2003-02-10 2004-08-11 Thomson Licensing S.A. Méthode pour transmettre et recevoir une information de police dans les systèmes de diffusion en continu
US7889359B2 (en) 2006-02-20 2011-02-15 Canon Kabushiki Kaisha Information processing apparatus and control method thereof, and program
US20110225507A1 (en) * 2010-03-15 2011-09-15 Gmc Software Ag Method and devices for generating two-dimensional visual objects
US8462360B2 (en) * 2006-01-31 2013-06-11 Brother Kogyo Kabushiki Kaisha Network system, printing device and program for sharing and handling font data

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100756370B1 (ko) * 2005-01-14 2007-09-10 (주)네오프리라인 트루타입폰트 구현 방법 및 그 장치와 트루타입폰트문자메시지 서비스 방법
KR101437843B1 (ko) * 2012-09-27 2014-09-04 주식회사 인프라웨어 전자문서 레이아웃 유지를 위한 폰트처리 방법, 그리고 이를 위한 폰트처리 프로그램을 기록한 컴퓨터로 판독가능한 기록매체

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0658856A2 (fr) * 1993-12-15 1995-06-21 Canon Kabushiki Kaisha Dispositif et méthode de sélection d'une fonte de caractères
US5668935A (en) * 1995-07-19 1997-09-16 Fuji Xerox Co., Ltd. Character output device
WO1998021890A1 (fr) * 1996-11-12 1998-05-22 Thomson Consumer Electronics, Inc. Systeme et procede permettant de recevoir et de reproduire des textes en plusieurs langues sur un coffret d'abonne

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3470378B2 (ja) * 1994-03-18 2003-11-25 富士ゼロックス株式会社 文字情報出力装置および方法

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0658856A2 (fr) * 1993-12-15 1995-06-21 Canon Kabushiki Kaisha Dispositif et méthode de sélection d'une fonte de caractères
US5668935A (en) * 1995-07-19 1997-09-16 Fuji Xerox Co., Ltd. Character output device
WO1998021890A1 (fr) * 1996-11-12 1998-05-22 Thomson Consumer Electronics, Inc. Systeme et procede permettant de recevoir et de reproduire des textes en plusieurs langues sur un coffret d'abonne

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 1996, no. 02, 29 February 1996 (1996-02-29) & JP 07 261739 A (FUJI XEROX CO LTD), 13 October 1995 (1995-10-13) *

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1445954A1 (fr) * 2003-02-10 2004-08-11 Thomson Licensing S.A. Méthode pour transmettre et recevoir une information de police dans les systèmes de diffusion en continu
WO2004071097A1 (fr) * 2003-02-10 2004-08-19 Thomson Licensing S.A Procede de transmission et de reception d'informations de caracteres dans des systemes de flux de donnees
JP2006517368A (ja) * 2003-02-10 2006-07-20 トムソン ライセンシング ストリーミングシステムにおけるフォント情報を送信および受信する方法
US7701458B2 (en) 2003-02-10 2010-04-20 Thomson Licensing Method to transmit and receive font information in streaming systems
KR101010498B1 (ko) * 2003-02-10 2011-01-24 톰슨 라이센싱 폰트 정보를 스트리밍 시스템에서 전송 및 수신하기 위한방법
US8462360B2 (en) * 2006-01-31 2013-06-11 Brother Kogyo Kabushiki Kaisha Network system, printing device and program for sharing and handling font data
US7889359B2 (en) 2006-02-20 2011-02-15 Canon Kabushiki Kaisha Information processing apparatus and control method thereof, and program
US20110225507A1 (en) * 2010-03-15 2011-09-15 Gmc Software Ag Method and devices for generating two-dimensional visual objects
US9189460B2 (en) * 2010-03-15 2015-11-17 Gmc Software Ag Method and devices for generating two-dimensional visual objects
US10049478B2 (en) 2010-03-15 2018-08-14 Quadient Group Ag Retrieval and display of visual objects

Also Published As

Publication number Publication date
KR20010093190A (ko) 2001-10-27
WO2000038170A3 (fr) 2000-09-14

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