WO2011150877A3 - 一种确定需要输出的视频信号类型的方法及装置 - Google Patents

一种确定需要输出的视频信号类型的方法及装置 Download PDF

Info

Publication number
WO2011150877A3
WO2011150877A3 PCT/CN2011/075871 CN2011075871W WO2011150877A3 WO 2011150877 A3 WO2011150877 A3 WO 2011150877A3 CN 2011075871 W CN2011075871 W CN 2011075871W WO 2011150877 A3 WO2011150877 A3 WO 2011150877A3
Authority
WO
WIPO (PCT)
Prior art keywords
video signal
output
voltage
video
signals
Prior art date
Application number
PCT/CN2011/075871
Other languages
English (en)
French (fr)
Other versions
WO2011150877A2 (zh
Inventor
陈俊涛
Original Assignee
华为终端有限公司
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 华为终端有限公司 filed Critical 华为终端有限公司
Priority to EP11789256.2A priority Critical patent/EP2723059A4/en
Priority to PCT/CN2011/075871 priority patent/WO2011150877A2/zh
Priority to CN201180000876.0A priority patent/CN102318340B/zh
Publication of WO2011150877A2 publication Critical patent/WO2011150877A2/zh
Publication of WO2011150877A3 publication Critical patent/WO2011150877A3/zh
Priority to US13/732,051 priority patent/US9071769B2/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N3/00—Scanning details of television systems; Combination thereof with generation of supply voltages
    • H04N3/10—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical
    • H04N3/16—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical by deflecting electron beam in cathode-ray tube, e.g. scanning corrections
    • H04N3/27—Circuits special to multi-standard receivers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/64—Circuits for processing colour signals
    • H04N9/641—Multi-purpose receivers, e.g. for auxiliary information

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)

Abstract

一种确定需要输出的视频信号类型的方法，包括：分别在不同的视频输出接口模式下提取视频输出信号中的检测信号；分别将提取出来的检测信号转换为直流电压信号；分别将所述直流电压信号与电压阈值进行比较，根据比较结果判断需要输出的视频信号类型。本发明实施例还提供了一种确定需要输出的视频信号类型的装置。本发明实施例，通过提取各个视频输出接口模式下视频信号中包含的检测信号，通过将检测信号的电压与电压阈值进行比较，来判断对应的各个视频输出接口模式下的DAC端口是否接入负载端子，进而确定需要输出的视频信号。由于判断负载端子接入时仅采用电压比较即可实现，是一种实现简单，且成本低廉的实现方案。
PCT/CN2011/075871 2011-06-17 2011-06-17 一种确定需要输出的视频信号类型的方法及装置 WO2011150877A2 (zh)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP11789256.2A EP2723059A4 (en) 2011-06-17 2011-06-17 METHOD AND DEVICE FOR DETERMINING THE TYPE OF VIDEO SIGNAL TO BE DELIVERED IN OUTPUT
PCT/CN2011/075871 WO2011150877A2 (zh) 2011-06-17 2011-06-17 一种确定需要输出的视频信号类型的方法及装置
CN201180000876.0A CN102318340B (zh) 2011-06-17 2011-06-17 一种确定需要输出的视频信号类型的方法及装置
US13/732,051 US9071769B2 (en) 2011-06-17 2012-12-31 Method and apparatus for determining type of video signal to be output

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2011/075871 WO2011150877A2 (zh) 2011-06-17 2011-06-17 一种确定需要输出的视频信号类型的方法及装置

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US13/732,051 Continuation US9071769B2 (en) 2011-06-17 2012-12-31 Method and apparatus for determining type of video signal to be output

Publications (2)

Publication Number Publication Date
WO2011150877A2 WO2011150877A2 (zh) 2011-12-08
WO2011150877A3 true WO2011150877A3 (zh) 2012-05-03

Family

ID=45067124

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2011/075871 WO2011150877A2 (zh) 2011-06-17 2011-06-17 一种确定需要输出的视频信号类型的方法及装置

Country Status (4)

Country Link
US (1) US9071769B2 (zh)
EP (1) EP2723059A4 (zh)
CN (1) CN102318340B (zh)
WO (1) WO2011150877A2 (zh)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103905768B (zh) * 2014-02-17 2018-02-23 熊猫电子集团有限公司 一种电视接收机中视频输入和分量输入接口复用的方法
KR102328803B1 (ko) * 2014-12-16 2021-11-22 삼성전자주식회사 전자 장치 및 전자 장치 접속부의 이상 여부 판단 방법
CN106331531B (zh) * 2015-06-29 2019-04-09 杭州海康威视数字技术股份有限公司 视频信号的切换电路和切换方法
FR3047378B1 (fr) * 2016-01-29 2018-05-18 STMicroelectronics (Alps) SAS Circuit de fourniture d'un signal video analogique
CN105847955B (zh) * 2016-05-20 2019-05-07 四川九洲电器集团有限责任公司 一种信号源的切换方法及电子设备
CN106572317A (zh) * 2016-11-07 2017-04-19 广州视源电子科技股份有限公司 一种信号识别电路及信号识别方法
EP3813360A4 (en) * 2018-07-25 2021-09-01 Hangzhou Hikvision Digital Technology Co., Ltd. VIDEO SIGNAL IDENTIFICATION METHOD AND DEVICE, ELECTRONIC DEVICE, AND COMPUTER READABLE STORAGE MEDIA
CN110769176B (zh) * 2018-07-25 2022-01-25 杭州海康威视数字技术股份有限公司 视频信号类型识别方法、装置、电子设备及可读存储介质

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1640152A (zh) * 2002-04-04 2005-07-13 汤姆森特许公司 视频装置
CN1960436A (zh) * 2005-09-29 2007-05-09 日本电气视象技术株式会社 视频信号确定设备和方法，视频显示设备和方法
CN1976420A (zh) * 2005-12-01 2007-06-06 Lg电子株式会社 确定输入端口状态的方法及利用该方法的电视接收器
CN101116347A (zh) * 2005-02-03 2008-01-30 汤姆森特许公司 共享视频输入插孔的系统和方法
CN101595721A (zh) * 2007-01-03 2009-12-02 创新科技有限公司 用于确定将由媒体播放器生成的视频信号类型的电路、方法和系统

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050177653A1 (en) * 2004-02-06 2005-08-11 Via Technologies, Inc. Apparatus and method for installing a AV system easily and flexibly
US7283178B2 (en) * 2004-08-11 2007-10-16 Dell Products L.P. System and method for multimode information handling system TV out cable connection
US7515208B1 (en) * 2004-10-08 2009-04-07 Nvidia Corporation Apparatus, system, and method for detecting AC-coupled electrical loads
US7525600B2 (en) * 2005-01-14 2009-04-28 Broadcom Corporation Single integrated high definition television (HDTV) chip for analog and digital reception
US20070268413A1 (en) 2005-02-03 2007-11-22 King Dale W System and method for sharing video input jacks
US8832596B2 (en) * 2005-05-23 2014-09-09 Dell Products L.P. System and method for display input selection
TWI384870B (zh) * 2006-01-03 2013-02-01 Mstar Semiconductor Inc 自動偵測影音訊號的影音切換方法及其相關裝置
US8325236B2 (en) * 2006-03-03 2012-12-04 Sharp Laboratories Of America, Inc. Methods and systems for cable-connection detection
US20080062328A1 (en) * 2006-09-11 2008-03-13 Brett Bilbrey Signal format selection based on physical connections
TWI332799B (en) * 2006-09-13 2010-11-01 Realtek Semiconductor Corp A video data source system and an analog back end device
TWI342163B (en) * 2006-10-11 2011-05-11 Princeton Technology Corp Av player chip, av system, and related method capable of sharing digital-to-analog converter
US7508326B2 (en) * 2006-12-21 2009-03-24 Sigmatel, Inc. Automatically disabling input/output signal processing based on the required multimedia format
US7895889B2 (en) * 2007-05-16 2011-03-01 Rosemount Tank Radar Ab Radar level gauge system with adaptive transmission power control
US8049820B2 (en) * 2007-08-06 2011-11-01 Mediatek Inc. Video processing circuits and methods using same buffer for video decoder and cross color suppressor
US20090086104A1 (en) * 2007-09-28 2009-04-02 Felder Matthew D Multimedia soc with advanced jack sense applications
US9098272B2 (en) * 2007-12-14 2015-08-04 Nvidia Corporation Power management using automatic load/unload detection of DAC
US20090174816A1 (en) * 2008-01-08 2009-07-09 Tim Hellman Method And System For Detection Of Video Connections
US8284087B2 (en) * 2008-03-04 2012-10-09 Ati Technologies Ulc System and method for detecting accessory connection and accessory class
EP2192573B1 (en) * 2008-11-26 2020-12-30 Samsung Electronics Co., Ltd. Display apparatus using external device connection unit and method of determining format of input image thereof
TW201123724A (en) * 2009-12-31 2011-07-01 Sunplus Technology Co Ltd Detector for detecting connection of video signal applied to multi-media apparatus
US8675138B2 (en) * 2010-07-15 2014-03-18 Broadcom Corporation Method and apparatus for fast source switching and/or automatic source switching

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1640152A (zh) * 2002-04-04 2005-07-13 汤姆森特许公司 视频装置
CN101116347A (zh) * 2005-02-03 2008-01-30 汤姆森特许公司 共享视频输入插孔的系统和方法
CN1960436A (zh) * 2005-09-29 2007-05-09 日本电气视象技术株式会社 视频信号确定设备和方法，视频显示设备和方法
CN1976420A (zh) * 2005-12-01 2007-06-06 Lg电子株式会社 确定输入端口状态的方法及利用该方法的电视接收器
CN101595721A (zh) * 2007-01-03 2009-12-02 创新科技有限公司 用于确定将由媒体播放器生成的视频信号类型的电路、方法和系统

Also Published As

Publication number Publication date
CN102318340A (zh) 2012-01-11
EP2723059A2 (en) 2014-04-23
WO2011150877A2 (zh) 2011-12-08
CN102318340B (zh) 2013-06-26
US9071769B2 (en) 2015-06-30
EP2723059A4 (en) 2014-09-03
US20130113994A1 (en) 2013-05-09

Similar Documents

Publication Publication Date Title
WO2011150877A3 (zh) 一种确定需要输出的视频信号类型的方法及装置
WO2014053911A3 (en) Analog to digital converter including a pre-charge circuit
WO2012103485A3 (en) Signal identification methods and systems
WO2014120559A3 (en) Battery charger reverse-boosting detection
WO2012086975A3 (en) Direct current/ direct current converter for reducing switching loss, wireless power receiver including direct current/ direct current converter
WO2013036855A3 (en) Real-time monitoring of electric power system voltage stability margins
WO2011013906A3 (ko) 발광 장치를 위한 조광 장치
WO2010003148A3 (en) Limitation of vampiric power consumption with decoupling of an inductive power apparatus and an alternating current power source
WO2011084740A3 (en) Bidirectional signal conversion
WO2012173707A3 (en) Methods and apparatus for constant power/current control for switch-mode power converters
WO2010117227A3 (en) Method of and system for performing access control and radio resource management entity
WO2012006225A3 (en) Phase detection method and circuit
WO2011151622A3 (en) Determining an indication of a background level of utility consumption
RU2016151189A (ru) Защита в переходном режиме для мульти-терминальной hdvc сети
WO2011039583A3 (en) Ac-dc switching power converters with frequency variation in response to load changes
WO2013044263A3 (en) Load detecting impedance matching buffer
WO2013016382A3 (en) System for measuring current and method of making same
EP2395619A3 (en) SSPC with dual fault detectors
WO2010006079A3 (en) Method of achieving high selectivity in receiver rf front-ends
GB2513062A (en) Method of detecting and breaking gas locks in an electric submersible pump
WO2014039499A3 (en) Method and system for voltage collapse protection
GB201006401D0 (en) Improved sample and hold circuit
TW201144818A (en) Method and apparatus for detecting CCM operation of a magnetic device
CN104076254A (zh) 一种交流激励绝缘检测电路
CN201392361Y (zh) 基于单片机与光耦的交直流电压电流表与采样电路

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 201180000876.0

Country of ref document: CN

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 11789256

Country of ref document: EP

Kind code of ref document: A2

REEP Request for entry into the european phase

Ref document number: 2011789256

Country of ref document: EP

WWE Wipo information: entry into national phase

Ref document number: 2011789256

Country of ref document: EP

NENP Non-entry into the national phase

Ref country code: DE