AR008275A1 - Indicador de enganche de frecuencia para un demodulador de bucle enganchado en frecuencia y fase. - Google Patents
Indicador de enganche de frecuencia para un demodulador de bucle enganchado en frecuencia y fase.Info
- Publication number
- AR008275A1 AR008275A1 ARP970103520A ARP970103520A AR008275A1 AR 008275 A1 AR008275 A1 AR 008275A1 AR P970103520 A ARP970103520 A AR P970103520A AR P970103520 A ARP970103520 A AR P970103520A AR 008275 A1 AR008275 A1 AR 008275A1
- Authority
- AR
- Argentina
- Prior art keywords
- frequency
- phase
- lock
- signal
- latch
- Prior art date
Links
- 230000008878 coupling Effects 0.000 title 1
- 238000010168 coupling process Methods 0.000 title 1
- 238000005859 coupling reaction Methods 0.000 title 1
- 238000012856 packing Methods 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
- H03D1/00—Demodulation of amplitude-modulated oscillations
-
- 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
- H03L7/085—Details of the phase-locked loop concerning mainly the frequency- or phase-detection arrangement including the filtering or amplification of its output signal
- H03L7/087—Details of the phase-locked loop concerning mainly the frequency- or phase-detection arrangement including the filtering or amplification of its output signal using at least two phase detectors or a frequency and phase detector in the loop
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/02—Amplitude-modulated carrier systems, e.g. using on-off keying; Single sideband or vestigial sideband modulation
- H04L27/06—Demodulator circuits; Receiver circuits
- H04L27/066—Carrier recovery circuits
-
- 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
- H03L7/085—Details of the phase-locked loop concerning mainly the frequency- or phase-detection arrangement including the filtering or amplification of its output signal
- H03L7/095—Details of the phase-locked loop concerning mainly the frequency- or phase-detection arrangement including the filtering or amplification of its output signal using a lock detector
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S331/00—Oscillators
- Y10S331/02—Phase locked loop having lock indicating or detecting means
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Power Engineering (AREA)
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
- Stereo-Broadcasting Methods (AREA)
- Channel Selection Circuits, Automatic Tuning Circuits (AREA)
- Monitoring And Testing Of Transmission In General (AREA)
- Synchronisation In Digital Transmission Systems (AREA)
Abstract
Un indicador de empaque de frecuencia para un demodulador de bucle enganchado en frecuencia y fase. Un bucle estable bifásico enganchado enfrecuencia y fase incluye un circuito de determinación de polaridad que determina la fase de bloqueo del bucle enganchado en frecuencia y fase en basea la polaridad del piloto en la senal digital. Un circuito indicador de enganche de frecuencia determina a partir del piloto recuperado el momento enel cual ha ocurrido el enganche de frecuencia y el circuito de determinación de polaridad tiene respuesta al mismo para invertir la fase de la senal queingresa (o alternativamente, de la senal saliente) según se determina, para suministrar una senal de salida de polaridad predeterminada. El indicador deenganche de frecuencia comprende un indicador de cruce por cero y un enganche que es muestreado durante un período de tiempo. En el detector de cruce porcero es un circuito de retardo y una compuerta O exclusiva. Se puede utilizar un contador de confidencia opcional con el enganche para determinar elmomento en el cual se ha producido el enganche de frecuencia a fin de proporcionar la senal indicadora de enganche.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/691,657 US5675284A (en) | 1996-05-13 | 1996-08-02 | Frequency lock indicator for FPLL demodulated signal having a pilot |
Publications (1)
Publication Number | Publication Date |
---|---|
AR008275A1 true AR008275A1 (es) | 1999-12-29 |
Family
ID=24777427
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ARP970103520A AR008275A1 (es) | 1996-08-02 | 1997-08-01 | Indicador de enganche de frecuencia para un demodulador de bucle enganchado en frecuencia y fase. |
Country Status (11)
Country | Link |
---|---|
US (1) | US5675284A (es) |
JP (1) | JP2000516057A (es) |
KR (1) | KR100321963B1 (es) |
CN (1) | CN1107373C (es) |
AR (1) | AR008275A1 (es) |
AU (1) | AU3673197A (es) |
BR (1) | BR9710778A (es) |
CA (1) | CA2262882C (es) |
HK (1) | HK1021777A1 (es) |
TW (1) | TW345786B (es) |
WO (1) | WO1998006173A1 (es) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6253273B1 (en) * | 1998-02-06 | 2001-06-26 | Emc Corporation | Lock mechanism |
KR100304889B1 (ko) * | 1998-12-31 | 2001-09-24 | 구자홍 | 디지털텔레비전의잔류측파대모드검출장치 |
US20020136340A1 (en) * | 2000-06-02 | 2002-09-26 | Enam Syed K. | Two-stage multiplier circuit |
US20030181182A1 (en) * | 2002-03-22 | 2003-09-25 | Hoi Ho Sing | Receiver for wireless transmission system |
US7261718B2 (en) * | 2003-09-11 | 2007-08-28 | Skeletal Kinetics Llc | Use of vibration with polymeric bone cements |
US7788266B2 (en) | 2005-08-26 | 2010-08-31 | Veveo, Inc. | Method and system for processing ambiguous, multi-term search queries |
CN102116798A (zh) * | 2011-03-07 | 2011-07-06 | 深圳市锐能微科技有限公司 | 一种电网频率测量方法及装置 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2419614A1 (fr) * | 1978-03-10 | 1979-10-05 | Cit Alcatel | Circuit de recuperation de la porteuse d'un signal numerique synchrone transmis par modulation d'amplitude |
FR2441298A1 (fr) * | 1978-11-07 | 1980-06-06 | Cit Alcatel | Dispositif de recuperation de rythme |
FR2655788B1 (fr) * | 1989-12-11 | 1995-08-04 | France Etat | Systeme de transmission a modulation d'amplitude a porteuse supprimee, conservant la polarite du signal transmis. |
-
1996
- 1996-08-02 US US08/691,657 patent/US5675284A/en not_active Expired - Lifetime
-
1997
- 1997-07-24 WO PCT/US1997/013024 patent/WO1998006173A1/en active IP Right Grant
- 1997-07-24 AU AU36731/97A patent/AU3673197A/en not_active Abandoned
- 1997-07-24 TW TW086110535A patent/TW345786B/zh not_active IP Right Cessation
- 1997-07-24 BR BR9710778A patent/BR9710778A/pt not_active IP Right Cessation
- 1997-07-24 KR KR1019997000811A patent/KR100321963B1/ko not_active IP Right Cessation
- 1997-07-24 JP JP10507977A patent/JP2000516057A/ja active Pending
- 1997-07-24 CN CN97197010A patent/CN1107373C/zh not_active Expired - Lifetime
- 1997-07-24 CA CA002262882A patent/CA2262882C/en not_active Expired - Lifetime
- 1997-08-01 AR ARP970103520A patent/AR008275A1/es unknown
-
2000
- 2000-02-02 HK HK00100631A patent/HK1021777A1/xx not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
HK1021777A1 (en) | 2000-06-30 |
KR100321963B1 (ko) | 2002-02-02 |
CN1107373C (zh) | 2003-04-30 |
BR9710778A (pt) | 1999-08-17 |
CA2262882C (en) | 2003-09-16 |
TW345786B (en) | 1998-11-21 |
US5675284A (en) | 1997-10-07 |
CA2262882A1 (en) | 1998-02-12 |
KR20000029710A (ko) | 2000-05-25 |
JP2000516057A (ja) | 2000-11-28 |
CN1227677A (zh) | 1999-09-01 |
AU3673197A (en) | 1998-02-25 |
WO1998006173A1 (en) | 1998-02-12 |
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