CA2241379A1 - Circuit and method for determining received signal - Google Patents

Circuit and method for determining received signal

Info

Publication number
CA2241379A1
CA2241379A1 CA002241379A CA2241379A CA2241379A1 CA 2241379 A1 CA2241379 A1 CA 2241379A1 CA 002241379 A CA002241379 A CA 002241379A CA 2241379 A CA2241379 A CA 2241379A CA 2241379 A1 CA2241379 A1 CA 2241379A1
Authority
CA
Canada
Prior art keywords
signal
received signal
circuit
received
receiver
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.)
Granted
Application number
CA002241379A
Other languages
French (fr)
Other versions
CA2241379C (en
Inventor
Myeong-Hwan Lee
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.)
Samsung Electronics Co Ltd
Original Assignee
Samsung Electronics Co 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 Samsung Electronics Co Ltd filed Critical Samsung Electronics Co Ltd
Publication of CA2241379A1 publication Critical patent/CA2241379A1/en
Application granted granted Critical
Publication of CA2241379C publication Critical patent/CA2241379C/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
    • H04N5/00—Details of television systems
    • H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H04N5/46—Receiver circuitry for the reception of television signals according to analogue transmission standards for receiving on more than one standard at will
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/015—High-definition television systems
    • 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
    • H04N21/42607—Internal components of the client ; Characteristics thereof for processing the incoming bitstream
    • H04N21/4263—Internal components of the client ; Characteristics thereof for processing the incoming bitstream involving specific tuning arrangements, e.g. two tuners
    • H04N21/42638—Internal components of the client ; Characteristics thereof for processing the incoming bitstream involving specific tuning arrangements, e.g. two tuners involving a hybrid front-end, e.g. analog and digital tuners
    • 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
    • H04N21/47—End-user applications
    • H04N21/482—End-user interface for program selection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N11/00—Colour television systems
    • H04N11/24—High-definition television systems
    • 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

Abstract

Circuit and method for determining a received signal for a receiver such as a simulcast receiver or an HDTV receiver are provided. The circuit includes a first detector for detecting a first reference signal included in a received sig nal and outputting a first detection signal, a second detector for detecting a second reference signal included in the received signal and outputting a second detecti on signal, and a generator for generating a determination signal which indicates th at the received signal is an analog broadcasting signal, if the first detection sig nal is detected, and indicates that the received signal is a high definition signal, if the second detection signal is detected. Therefore, the received signal can be determined correctly, according to channel selection.
CA002241379A 1997-08-01 1998-06-22 Circuit and method for determining received signal Expired - Fee Related CA2241379C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR97-36884 1997-08-01
KR1019970036884A KR100224861B1 (en) 1997-08-01 1997-08-01 A received signal discrimination circuit and method

Publications (2)

Publication Number Publication Date
CA2241379A1 true CA2241379A1 (en) 1999-02-01
CA2241379C CA2241379C (en) 2001-11-06

Family

ID=19516689

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002241379A Expired - Fee Related CA2241379C (en) 1997-08-01 1998-06-22 Circuit and method for determining received signal

Country Status (5)

Country Link
US (1) US6335762B1 (en)
JP (1) JP3383220B2 (en)
KR (1) KR100224861B1 (en)
CN (1) CN1140114C (en)
CA (1) CA2241379C (en)

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KR100258931B1 (en) * 1997-06-17 2000-06-15 윤종용 A received signal discriminating circuit and method therefor
US6606129B1 (en) * 1998-12-04 2003-08-12 Samsung Electronics Co., Ltd. Digital filtering of DTV I-F signal to avoid low-end boost of the baseband signal resulting from in-phase synchrodyne
US6622308B1 (en) * 1999-03-23 2003-09-16 Scientific-Atlanta, Inc. Automatic digital television (DTV) bypass for a CATV converter using a CATV tuner
US6731347B1 (en) * 1999-04-09 2004-05-04 Sony Corporation Method for switching signal input based on device capability
US6757025B1 (en) 1999-04-09 2004-06-29 Sony Corporation Method for switching input terminals based on incoming signal format
AU4208600A (en) 1999-04-09 2000-11-14 Sony Electronics Inc. Method for switching signal input based on device capability
US6826776B1 (en) 1999-04-09 2004-11-30 Sony Corporation Method and apparatus for determining signal path
US6976267B1 (en) 1999-04-09 2005-12-13 Sony Corporation Method and apparatus for controlling connections between devices
JP3540242B2 (en) * 2000-03-30 2004-07-07 松下電器産業株式会社 Multi-system receiver
US8743285B2 (en) * 2001-08-31 2014-06-03 Thomson Licensing Automatic return to a high-definition mode after guide demonstration
JP3779215B2 (en) * 2002-01-28 2006-05-24 富士通株式会社 Portable information processing device
JP2004004796A (en) * 2002-04-25 2004-01-08 Matsushita Electric Ind Co Ltd Image processor
JP2004179718A (en) * 2002-11-25 2004-06-24 Sanyo Electric Co Ltd Broadcast receiver
JP4449382B2 (en) * 2003-09-19 2010-04-14 船井電機株式会社 Receiving device and television apparatus equipped with the same
CN1890967B (en) * 2003-12-08 2010-11-17 汤姆逊许可公司 Digital/analog closed caption display system in a television signal receiver
JP2008079241A (en) * 2006-09-25 2008-04-03 Sharp Corp Detection circuit, modulation mode discrimination circuit, integrated circuit, tuner device, and multi-system compatible receiver
US8584173B2 (en) * 2009-07-10 2013-11-12 EchoStar Technologies, L.L.C. Automatic selection of video programming channel based on scheduling information
US9071799B2 (en) 2012-02-17 2015-06-30 Echostar Technologies L.L.C. Channel tuning redirect
TW201611620A (en) * 2014-09-05 2016-03-16 可取國際股份有限公司 Digital video recorder and video recording and playback method thereof
GB2565006B (en) * 2018-11-09 2021-09-08 O2Micro International Ltd Battery protection systems

Family Cites Families (17)

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Publication number Priority date Publication date Assignee Title
JPS6425684A (en) 1987-07-22 1989-01-27 Olympus Optical Co Device for recording signal
JPH01137890A (en) 1987-11-25 1989-05-30 Toshiba Corp Broadcasting system discriminating circuit
JPH0748836B2 (en) 1988-02-04 1995-05-24 日本放送協会 Television receiver
US5173774A (en) * 1990-12-18 1992-12-22 Zenith Electronics Corporation Dual purpose HDTV/NTSC receiver
JPH04248782A (en) 1991-02-04 1992-09-04 Sharp Corp Side panel system wide aspect television receiver
JP2641148B2 (en) 1991-06-17 1997-08-13 シャープ株式会社 Television receiver
JPH05268545A (en) * 1992-03-17 1993-10-15 Sony Corp Television signal type discrimination device
US5283653A (en) * 1992-05-22 1994-02-01 Zenith Electronics Corp. Dual HDTV/NTSC receiver using sequentially synthesized HDTV and NTSC co-channel carrier frequencies
KR950011655B1 (en) * 1992-10-31 1995-10-07 삼성전자주식회사 Channel & broadcasting station marked apparatus
DE69513699T2 (en) * 1994-01-24 2000-04-06 Toshiba Kawasaki Kk TV receiver with a broadcast system discriminator
US5557337A (en) * 1994-02-18 1996-09-17 Hitachi America, Ltd. Automatic television signal detector to differentiate NTSC signals from HDJV/AJV signals
KR960013649B1 (en) * 1994-04-12 1996-10-10 엘지전자 주식회사 Terrestrial and cable hd broadcasting signal common receiving apparatus
US5461427A (en) * 1994-06-28 1995-10-24 Thomson Consumer Electronics, Inc. Television receiver having the capability to associate any HDTV and any NTSC channel
JP3318852B2 (en) * 1994-08-16 2002-08-26 ソニー株式会社 Television receiver
US6061096A (en) * 1997-03-19 2000-05-09 Samsung Electronics Co., Ltd. Digital-and-analog-TV-signal receivers, each with single first detector and shared high-band I-F amplification
US5923378A (en) * 1997-03-21 1999-07-13 Samsung Electronics Co., Ltd. Using intercarrier signals for detecting NTSC interference in digital TV receivers
KR19980076495A (en) * 1997-04-10 1998-11-16 윤종용 HDTV / NTSC receiver and receiving signal selection method

Also Published As

Publication number Publication date
KR19990015016A (en) 1999-03-05
JP3383220B2 (en) 2003-03-04
CN1207636A (en) 1999-02-10
JPH1175137A (en) 1999-03-16
CN1140114C (en) 2004-02-25
KR100224861B1 (en) 1999-10-15
US6335762B1 (en) 2002-01-01
CA2241379C (en) 2001-11-06

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed

Effective date: 20170622

MKLA Lapsed

Effective date: 20170622