ES2104926T3 - Generador de una señal de reloj para un receptor de television digital. - Google Patents
Generador de una señal de reloj para un receptor de television digital.Info
- Publication number
- ES2104926T3 ES2104926T3 ES92912212T ES92912212T ES2104926T3 ES 2104926 T3 ES2104926 T3 ES 2104926T3 ES 92912212 T ES92912212 T ES 92912212T ES 92912212 T ES92912212 T ES 92912212T ES 2104926 T3 ES2104926 T3 ES 2104926T3
- Authority
- ES
- Spain
- Prior art keywords
- clock signal
- television receiver
- information
- narrowband
- generator
- 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 - Lifetime
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
- H03L7/00—Automatic control of frequency or phase; Synchronisation
- H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
- H03L7/08—Details of the phase-locked loop
- H03L7/14—Details of the phase-locked loop for assuring constant frequency when supply or correction voltages fail or are interrupted
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N11/00—Colour television systems
- H04N11/24—High-definition television systems
- H04N11/30—High-definition television systems with transmission of the extra information by means of quadrature modulation
-
- 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
- H03—ELECTRONIC CIRCUITRY
- H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
- H03L7/00—Automatic control of frequency or phase; Synchronisation
- H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
- H03L7/08—Details of the phase-locked loop
- H03L7/099—Details of the phase-locked loop concerning mainly the controlled oscillator of the loop
- H03L7/0991—Details of the phase-locked loop concerning mainly the controlled oscillator of the loop the oscillator being a digital oscillator, e.g. composed of a fixed oscillator followed by a variable frequency divider
-
- 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
- H04N21/438—Interfacing the downstream path of the transmission network originating from a server, e.g. retrieving encoded video stream packets from an IP network
- H04N21/4383—Accessing a communication channel
- H04N21/4384—Accessing a communication channel involving operations to reduce the access time, e.g. fast-tuning for reducing channel switching latency
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Circuits Of Receivers In General (AREA)
- Television Systems (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Picture Signal Circuits (AREA)
- Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
- Radio Transmission System (AREA)
Abstract
UN RECEPTOR DE TELEVISION DE ALTA DEFINICION QUE INCLUYE CIRCUITOS DE PROCESAMIENTO DE SEÑALES DIGITALES (118-128, 150) RECIBE UNA SEÑAL DE TELEVISION DE ALTA DEFINICION QUE CONTIENE UNA INFORMACION DE ALTA PRIORIDAD DE BANDA ESTRECHA A PARTIR DE LA CUAL SE DERIVA UNA SINCRONIZACION DEL SISTEMA (155, 129), Y UNA INFORMACION DE BANDA ANCHA DE BAJA PRIORIDAD. DESPUES DE UN CAMBIO DE CANAL, UNA SEÑAL DE SINCRONIZACION DESARROLLADA (137, 139) A PARTIR DE LA INFORMACION DE BANDA ESTRECHA ASOCIADA CON EL CANAL PREVIAMENTE SINTONIZADO SE UTILIZA (134) COMO SINCRONIZACION DEL RECEPTOR HASTA QUE UNA SEÑAL DE SINCRONIZACION CON UNA CARACTERISTICA DE FASE DESEADA SE DESARROLLA (131, 133) A PARTIR DE LA INFORMACION DE BANDA ESTRECHA DEL CANAL NUEVAMENTE SINTONIZADO.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/735,750 US5175626A (en) | 1991-07-25 | 1991-07-25 | Apparatus providing a clock signal for a digital television receiver in response to a channel change |
Publications (1)
Publication Number | Publication Date |
---|---|
ES2104926T3 true ES2104926T3 (es) | 1997-10-16 |
Family
ID=24957031
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES92912212T Expired - Lifetime ES2104926T3 (es) | 1991-07-25 | 1992-05-15 | Generador de una señal de reloj para un receptor de television digital. |
Country Status (20)
Country | Link |
---|---|
US (1) | US5175626A (es) |
EP (1) | EP0595827B1 (es) |
JP (1) | JP3301023B2 (es) |
KR (1) | KR100234838B1 (es) |
CN (1) | CN1041782C (es) |
AT (1) | ATE156957T1 (es) |
AU (1) | AU662537B2 (es) |
BR (1) | BR9206281A (es) |
CA (1) | CA2111115C (es) |
DE (1) | DE69221623T2 (es) |
ES (1) | ES2104926T3 (es) |
FI (1) | FI940337A (es) |
MX (1) | MX9204372A (es) |
MY (1) | MY107034A (es) |
PL (1) | PL168665B1 (es) |
PT (1) | PT100722B (es) |
SG (1) | SG52292A1 (es) |
TR (1) | TR26778A (es) |
TW (1) | TW197552B (es) |
WO (1) | WO1993002525A1 (es) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0555918A1 (en) * | 1992-02-13 | 1993-08-18 | Koninklijke Philips Electronics N.V. | Extended television system |
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 |
US5386239A (en) * | 1993-05-03 | 1995-01-31 | Thomson Consumer Electronics, Inc. | Multiple QAM digital television signal decoder |
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 |
US5627604A (en) * | 1994-04-04 | 1997-05-06 | Zenith Electronics Corporation | Stabilizing the lock up of a bi-phase stable FPLL by augmenting a recovered DC pilot |
KR960013651B1 (ko) * | 1994-04-12 | 1996-10-10 | 엘지전자 주식회사 | 에이치디티브이(hdtv) 수신기의 디씨(dc)보정장치 |
US5559562A (en) * | 1994-11-01 | 1996-09-24 | Ferster; William | MPEG editor method and apparatus |
KR100320450B1 (ko) * | 1994-12-16 | 2002-06-20 | 구자홍 | 고선명티브이수상기의수신기동작상황검출장치 |
FI98026C (fi) * | 1995-11-08 | 1997-03-25 | Nokia Technology Gmbh | Menetelmä QAM-vastaanottimen yhteydessä ja QAM-vastaanotin |
US6377312B1 (en) * | 1998-08-24 | 2002-04-23 | Samsung Electronics Co., Ltd. | Adaptive fractionally spaced equalizer for received radio transmissions with digital content, such as DTV signals |
FR2785747B1 (fr) * | 1998-11-09 | 2004-02-13 | Commissariat Energie Atomique | Filtre numerique a architecture parallele et recepteur de signaux a etalement de spectre utilisant un tel filtre |
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 |
US6961370B2 (en) * | 2001-03-29 | 2005-11-01 | Acterna | Sweep method using digital signals |
US20090154615A1 (en) * | 2007-02-16 | 2009-06-18 | Katsumasa Hijikata | Integrated circuit for processing multi-channel radio signal |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4622578A (en) * | 1983-01-28 | 1986-11-11 | At&T Bell Laboratories | Fully compatible high definition television |
US4633293A (en) * | 1983-09-26 | 1986-12-30 | Rca Corporation | High definition television signal for film-television standards conversion system |
US4535352A (en) * | 1984-04-16 | 1985-08-13 | At&T Bell Laboratories | Technique for generating semi-compatible high definition television signals for transmission over two cable TV channels |
US4835481A (en) * | 1986-09-30 | 1989-05-30 | Siemens Aktiengesellschaft | Circuit arrangement for generating a clock signal which is synchronous in respect of frequency to a reference frequency |
US4980899A (en) * | 1988-06-21 | 1990-12-25 | Siemens Ag | Method and apparatus for synchronization of a clock signal generator particularly useful in a digital telecommunications exchange |
US4980767A (en) * | 1989-11-30 | 1990-12-25 | At&T Bell Laboratories | Technique for determining signal dispersion characteristics in communications systems |
US5028885A (en) * | 1990-08-30 | 1991-07-02 | Motorola, Inc. | Phase-locked loop signal generation system with control maintenance |
-
1991
- 1991-07-25 US US07/735,750 patent/US5175626A/en not_active Expired - Lifetime
-
1992
- 1992-03-10 TW TW081101815A patent/TW197552B/zh active
- 1992-05-15 CA CA002111115A patent/CA2111115C/en not_active Expired - Lifetime
- 1992-05-15 ES ES92912212T patent/ES2104926T3/es not_active Expired - Lifetime
- 1992-05-15 AU AU19951/92A patent/AU662537B2/en not_active Ceased
- 1992-05-15 KR KR1019940700189A patent/KR100234838B1/ko not_active IP Right Cessation
- 1992-05-15 JP JP50276993A patent/JP3301023B2/ja not_active Expired - Fee Related
- 1992-05-15 PL PL92302048A patent/PL168665B1/pl unknown
- 1992-05-15 BR BR9206281A patent/BR9206281A/pt not_active IP Right Cessation
- 1992-05-15 EP EP92912212A patent/EP0595827B1/en not_active Expired - Lifetime
- 1992-05-15 SG SG1996002344A patent/SG52292A1/en unknown
- 1992-05-15 WO PCT/US1992/003883 patent/WO1993002525A1/en active IP Right Grant
- 1992-05-15 DE DE69221623T patent/DE69221623T2/de not_active Expired - Lifetime
- 1992-05-15 AT AT92912212T patent/ATE156957T1/de not_active IP Right Cessation
- 1992-07-17 MY MYPI92001260A patent/MY107034A/en unknown
- 1992-07-22 TR TR92/0713A patent/TR26778A/xx unknown
- 1992-07-23 PT PT100722A patent/PT100722B/pt not_active IP Right Cessation
- 1992-07-24 MX MX9204372A patent/MX9204372A/es unknown
- 1992-07-24 CN CN92108757A patent/CN1041782C/zh not_active Expired - Fee Related
-
1994
- 1994-01-24 FI FI940337A patent/FI940337A/fi not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
DE69221623D1 (de) | 1997-09-18 |
FI940337A0 (fi) | 1994-01-24 |
CN1069612A (zh) | 1993-03-03 |
AU1995192A (en) | 1993-02-23 |
DE69221623T2 (de) | 1997-12-18 |
US5175626A (en) | 1992-12-29 |
MX9204372A (es) | 1993-02-01 |
CA2111115A1 (en) | 1993-02-04 |
BR9206281A (pt) | 1995-05-02 |
ATE156957T1 (de) | 1997-08-15 |
TR26778A (tr) | 1995-05-15 |
KR100234838B1 (ko) | 1999-12-15 |
EP0595827B1 (en) | 1997-08-13 |
WO1993002525A1 (en) | 1993-02-04 |
JPH06510643A (ja) | 1994-11-24 |
MY107034A (en) | 1995-08-30 |
AU662537B2 (en) | 1995-09-07 |
CN1041782C (zh) | 1999-01-20 |
EP0595827A1 (en) | 1994-05-11 |
FI940337A (fi) | 1994-01-24 |
JP3301023B2 (ja) | 2002-07-15 |
SG52292A1 (en) | 1998-09-28 |
CA2111115C (en) | 2002-04-16 |
TW197552B (es) | 1993-01-01 |
PT100722B (pt) | 1999-07-30 |
PT100722A (pt) | 1994-05-31 |
PL168665B1 (pl) | 1996-03-29 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FG2A | Definitive protection |
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