GB2365241B - Introducing background signals to communication systems - Google Patents

Introducing background signals to communication systems

Info

Publication number
GB2365241B
GB2365241B GB0017707A GB0017707A GB2365241B GB 2365241 B GB2365241 B GB 2365241B GB 0017707 A GB0017707 A GB 0017707A GB 0017707 A GB0017707 A GB 0017707A GB 2365241 B GB2365241 B GB 2365241B
Authority
GB
United Kingdom
Prior art keywords
communication systems
background signals
introducing background
introducing
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.)
Expired - Fee Related
Application number
GB0017707A
Other versions
GB0017707D0 (en
GB2365241A (en
Inventor
Stephen John Westlake
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.)
NEC Technologies UK Ltd
Original Assignee
NEC Technologies UK 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 NEC Technologies UK Ltd filed Critical NEC Technologies UK Ltd
Priority to GB0017707A priority Critical patent/GB2365241B/en
Publication of GB0017707D0 publication Critical patent/GB0017707D0/en
Priority to JP2001218270A priority patent/JP2002152698A/en
Priority to CN 01125947 priority patent/CN1335708A/en
Publication of GB2365241A publication Critical patent/GB2365241A/en
Application granted granted Critical
Publication of GB2365241B publication Critical patent/GB2365241B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/12—Systems in which the television signal is transmitted via one channel or a plurality of parallel channels, the bandwidth of each channel being less than the bandwidth of the television signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/14—Systems for two-way working
    • H04N7/141—Systems for two-way working between two video terminals, e.g. videophone
    • H04N7/147—Communication arrangements, e.g. identifying the communication as a video-communication, intermediate storage of the signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/14—Systems for two-way working
    • H04N7/141—Systems for two-way working between two video terminals, e.g. videophone
    • H04N7/148—Interfacing a video terminal to a particular transmission medium, e.g. ISDN
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/14—Systems for two-way working
    • H04N7/141—Systems for two-way working between two video terminals, e.g. videophone
    • H04N7/142—Constructional details of the terminal equipment, e.g. arrangements of the camera and the display
    • H04N2007/145—Handheld terminals

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Television Systems (AREA)
GB0017707A 2000-07-19 2000-07-19 Introducing background signals to communication systems Expired - Fee Related GB2365241B (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB0017707A GB2365241B (en) 2000-07-19 2000-07-19 Introducing background signals to communication systems
JP2001218270A JP2002152698A (en) 2000-07-19 2001-07-18 Communication system
CN 01125947 CN1335708A (en) 2000-07-19 2001-07-19 Leading background signal for communication system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0017707A GB2365241B (en) 2000-07-19 2000-07-19 Introducing background signals to communication systems

Publications (3)

Publication Number Publication Date
GB0017707D0 GB0017707D0 (en) 2000-09-06
GB2365241A GB2365241A (en) 2002-02-13
GB2365241B true GB2365241B (en) 2005-01-19

Family

ID=9895947

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0017707A Expired - Fee Related GB2365241B (en) 2000-07-19 2000-07-19 Introducing background signals to communication systems

Country Status (3)

Country Link
JP (1) JP2002152698A (en)
CN (1) CN1335708A (en)
GB (1) GB2365241B (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7162212B2 (en) 2003-09-22 2007-01-09 Agere Systems Inc. System and method for obscuring unwanted ambient noise and handset and central office equipment incorporating the same
CN1332562C (en) * 2005-03-02 2007-08-15 华为技术有限公司 Transmission device and method for user terminal signal
US7532770B2 (en) * 2005-09-23 2009-05-12 Siemens Aktiengesellschaft Method for combining two images based on eliminating background pixels from one of the images
US20080117333A1 (en) * 2006-11-17 2008-05-22 Disney Enterprises, Inc. Method, System And Computer Program Product For Video Insertion
GB0623289D0 (en) * 2006-11-22 2007-01-03 Apple Dynamics Intellectual Pr A noise generator
US8595783B2 (en) * 2010-08-30 2013-11-26 Sony Corporation Receiving device, receiving method, program, and broadcasting system
CN102447873A (en) * 2010-10-13 2012-05-09 张明 Ha-ha video network video chat entertainment auxiliary system
KR102502258B1 (en) * 2018-05-31 2023-02-21 라인플러스 주식회사 A method and system for exposing a personalized background using a chroma key to broadcast viewers and a non-temporary computer readable recording medium
CN110868633A (en) * 2019-11-27 2020-03-06 维沃移动通信有限公司 Video processing method and electronic equipment

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5083703A (en) * 1973-11-28 1975-07-07
EP0320828A2 (en) * 1987-12-17 1989-06-21 Mitsubishi Denki Kabushiki Kaisha Methods for transmitting and displaying a still picture image in a still picture video telephone apparatus
JPH1013799A (en) * 1996-06-19 1998-01-16 Mega Chips:Kk Video telephone set
JPH11261983A (en) * 1999-01-18 1999-09-24 Toshiba Corp Moving image decoding device and moving image encoding/ decoding device
GB2337654A (en) * 1998-05-22 1999-11-24 Samsung Electronics Co Ltd Multi-point video conferencing with image extraction
JP2000175166A (en) * 1998-12-08 2000-06-23 Canon Inc Video telephone system, transmission reception method for video telephone system and storage medium
US20020025048A1 (en) * 2000-03-31 2002-02-28 Harald Gustafsson Method of transmitting voice information and an electronic communications device for transmission of voice information

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0222986A (en) * 1988-07-12 1990-01-25 Mitsubishi Electric Corp Image transmission equipment
JP3131249B2 (en) * 1991-08-23 2001-01-31 日本放送協会 Mixed audio signal receiver
JP3123624B2 (en) * 1992-11-04 2001-01-15 日本電信電話株式会社 Television system
JPH09200714A (en) * 1996-01-17 1997-07-31 Casio Comput Co Ltd Image processor with video telephone

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5083703A (en) * 1973-11-28 1975-07-07
EP0320828A2 (en) * 1987-12-17 1989-06-21 Mitsubishi Denki Kabushiki Kaisha Methods for transmitting and displaying a still picture image in a still picture video telephone apparatus
JPH1013799A (en) * 1996-06-19 1998-01-16 Mega Chips:Kk Video telephone set
GB2337654A (en) * 1998-05-22 1999-11-24 Samsung Electronics Co Ltd Multi-point video conferencing with image extraction
JP2000175166A (en) * 1998-12-08 2000-06-23 Canon Inc Video telephone system, transmission reception method for video telephone system and storage medium
JPH11261983A (en) * 1999-01-18 1999-09-24 Toshiba Corp Moving image decoding device and moving image encoding/ decoding device
US20020025048A1 (en) * 2000-03-31 2002-02-28 Harald Gustafsson Method of transmitting voice information and an electronic communications device for transmission of voice information

Also Published As

Publication number Publication date
JP2002152698A (en) 2002-05-24
GB0017707D0 (en) 2000-09-06
GB2365241A (en) 2002-02-13
CN1335708A (en) 2002-02-13

Similar Documents

Publication Publication Date Title
GB0022370D0 (en) Improvements to televisionn system
IL155084A0 (en) Communication system
GB2370170B (en) Signal transmission systems
AU2002216240A1 (en) Communication system
AU2001265954A1 (en) Communication system
EP1303146A4 (en) Signal transmission system
GB0129150D0 (en) Earset communication system
GB0110356D0 (en) Communication system
GB2365241B (en) Introducing background signals to communication systems
WO2002013495A3 (en) Communication system
AU4274801A (en) Communication system
GB2365262B (en) Communication systems
AU2001290620A1 (en) Communication system
AU2001283982A1 (en) Group communication system
GB0003707D0 (en) Serial communication system
GB2361841B (en) Communication system
GB0009466D0 (en) Communication system
GB0018787D0 (en) Communication system
GB0006614D0 (en) Improved communication system
AU2001296192A1 (en) Communication system
AUPQ676600A0 (en) Communication system
AU2000264312A1 (en) Communication system
AU2001272447A1 (en) Communication system
AU2002216347A1 (en) Bidirectional signal repeater
AU2002222833A1 (en) Low swing communication system

Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20060719