MXPA00002443A - Metodo y aparato para recibir senales digitales. - Google Patents

Metodo y aparato para recibir senales digitales.

Info

Publication number
MXPA00002443A
MXPA00002443A MXPA00002443A MXPA00002443A MXPA00002443A MX PA00002443 A MXPA00002443 A MX PA00002443A MX PA00002443 A MXPA00002443 A MX PA00002443A MX PA00002443 A MXPA00002443 A MX PA00002443A MX PA00002443 A MXPA00002443 A MX PA00002443A
Authority
MX
Mexico
Prior art keywords
digital television
television signal
signal
agc
catv
Prior art date
Application number
MXPA00002443A
Other languages
English (en)
Inventor
Oya Koichi
Original Assignee
Sony Corp
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 Sony Corp filed Critical Sony Corp
Publication of MXPA00002443A publication Critical patent/MXPA00002443A/es

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
    • H04N5/52—Automatic gain control
    • 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
    • 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
    • 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
    • H04N21/442—Monitoring of processes or resources, e.g. detecting the failure of a recording device, monitoring the downstream bandwidth, the number of times a movie has been viewed, the storage space available from the internal hard disk
    • H04N21/44209—Monitoring of downstream path of the transmission network originating from a server, e.g. bandwidth variations of a wireless network
    • 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]
    • H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client 
    • H04N21/61—Network physical structure; Signal processing
    • H04N21/6106—Network physical structure; Signal processing specially adapted to the downstream path of the transmission network
    • H04N21/6112—Network physical structure; Signal processing specially adapted to the downstream path of the transmission network involving terrestrial transmission, e.g. DVB-T
    • 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]
    • H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client 
    • H04N21/61—Network physical structure; Signal processing
    • H04N21/6106—Network physical structure; Signal processing specially adapted to the downstream path of the transmission network
    • H04N21/6118—Network physical structure; Signal processing specially adapted to the downstream path of the transmission network involving cable transmission, e.g. using a cable modem

Abstract

Los puntos optimos para AGC de RF se establecen individualmente para una senal de television digital terrestre y una senal digital CATV. Se cambia un conmutador segun si una senal de entrada es una senal digital de television terrestre o una senal digital CATV. Si se introduce la senal digital de television digital terrestre, el voltaje para establecer el punto AGC de RF se establece a un voltaje de referencia V1 enviado desde una primera fuente de suministro de energia de referencia. Si se introduce la senal digital de CATV; el voltaje para establecer el punto AGC de RF se establece a un voltaje de referencia V21 enviado desde una segunda fuente de suministro de energia de referencia. Despues un comparador envia una senal AGC de RF de acuerdo con una diferencia entre una senal AGC de IF y el voltaje de referencia.
MXPA00002443A 1999-03-12 2000-03-10 Metodo y aparato para recibir senales digitales. MXPA00002443A (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP06663399A JP4359795B2 (ja) 1999-03-12 1999-03-12 デジタル信号受信装置および方法、並びに記録媒体

Publications (1)

Publication Number Publication Date
MXPA00002443A true MXPA00002443A (es) 2004-10-28

Family

ID=13321504

Family Applications (1)

Application Number Title Priority Date Filing Date
MXPA00002443A MXPA00002443A (es) 1999-03-12 2000-03-10 Metodo y aparato para recibir senales digitales.

Country Status (4)

Country Link
US (1) US6421098B1 (es)
JP (1) JP4359795B2 (es)
KR (1) KR20010006770A (es)
MX (1) MXPA00002443A (es)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MY135767A (en) * 2000-06-13 2008-06-30 Panasonic Corp Digital broadcast receiving apparatus
JP3773873B2 (ja) * 2002-05-24 2006-05-10 三洋電機株式会社 放送受信装置
EP1467559A1 (en) * 2003-04-11 2004-10-13 Thomson Licensing S.A. Video receiver
WO2004114653A1 (en) * 2003-06-20 2004-12-29 Koninklijke Philips Electronics N.V. Receiver for receiving radio frequency signals
JP4449382B2 (ja) * 2003-09-19 2010-04-14 船井電機株式会社 受信装置およびそれを搭載したテレビジョン装置
US7053961B2 (en) * 2004-02-17 2006-05-30 Sony Corporation System and method for TV automatic gain control (AGC)
JP4467383B2 (ja) * 2004-08-19 2010-05-26 シャープ株式会社 デジタル放送用チューナ
JP2009027463A (ja) * 2007-07-19 2009-02-05 Sharp Corp 地上波ｔｖ及びｃａｔｖ共用受信機

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5268761A (en) * 1992-08-19 1993-12-07 Rca Thomson Licensing Corporation Automatic gain control system for a high definition television signal receiver including an adaptive equalizer
US5410368A (en) * 1993-12-29 1995-04-25 Zenith Electronics Corp. Carrier acquisition by applying substitute pilot to a synchronous demodulator during a start up interval
US5565932A (en) * 1994-11-08 1996-10-15 Zenith Electronics Corp. AGC system with pilot using digital data reference

Also Published As

Publication number Publication date
JP4359795B2 (ja) 2009-11-04
US6421098B1 (en) 2002-07-16
JP2000270279A (ja) 2000-09-29
KR20010006770A (ko) 2001-01-26

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