ATE436119T1 - Verfahren und vorrichtung zur präzisen abstimmung in offener schleife der referenzfrequenz innerhalb einer drahtlosen einrichtung - Google Patents
Verfahren und vorrichtung zur präzisen abstimmung in offener schleife der referenzfrequenz innerhalb einer drahtlosen einrichtungInfo
- Publication number
- ATE436119T1 ATE436119T1 AT05739067T AT05739067T ATE436119T1 AT E436119 T1 ATE436119 T1 AT E436119T1 AT 05739067 T AT05739067 T AT 05739067T AT 05739067 T AT05739067 T AT 05739067T AT E436119 T1 ATE436119 T1 AT E436119T1
- Authority
- AT
- Austria
- Prior art keywords
- reference frequency
- signal
- wireless device
- closed loop
- communications subsystem
- Prior art date
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
- H03L7/146—Details of the phase-locked loop for assuring constant frequency when supply or correction voltages fail or are interrupted by using digital means for generating the oscillator control signal
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
- H03J7/00—Automatic frequency control; Automatic scanning over a band of frequencies
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/0014—Carrier regulation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/0014—Carrier regulation
- H04L2027/0044—Control loops for carrier regulation
- H04L2027/0046—Open loops
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/0014—Carrier regulation
- H04L2027/0044—Control loops for carrier regulation
- H04L2027/0053—Closed loops
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/0014—Carrier regulation
- H04L2027/0044—Control loops for carrier regulation
- H04L2027/0071—Control of loops
- H04L2027/0079—Switching between loops
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Transceivers (AREA)
- Channel Selection Circuits, Automatic Tuning Circuits (AREA)
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US62855204P | 2004-11-18 | 2004-11-18 | |
PCT/CA2005/000643 WO2006053417A1 (en) | 2004-11-18 | 2005-04-28 | Method and apparatus for precise open loop tuning of reference frequency within a wireless device |
Publications (1)
Publication Number | Publication Date |
---|---|
ATE436119T1 true ATE436119T1 (de) | 2009-07-15 |
Family
ID=36406792
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT05739067T ATE436119T1 (de) | 2004-11-18 | 2005-04-28 | Verfahren und vorrichtung zur präzisen abstimmung in offener schleife der referenzfrequenz innerhalb einer drahtlosen einrichtung |
Country Status (6)
Country | Link |
---|---|
US (3) | US7508888B2 (de) |
EP (1) | EP1820274B1 (de) |
AT (1) | ATE436119T1 (de) |
CA (1) | CA2554123C (de) |
DE (1) | DE602005015355D1 (de) |
WO (1) | WO2006053417A1 (de) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE602005015355D1 (de) | 2004-11-18 | 2009-08-20 | Research In Motion Ltd | Verfahren und vorrichtung zur präzisen abstimmung in offener schleife der referenzfrequenz innerhalb einer drahtlosen einrichtung |
US7720469B2 (en) * | 2005-12-29 | 2010-05-18 | Nokia Corporation | Frequency calibration of wireless telecommunication device |
FR2903254B1 (fr) * | 2006-06-29 | 2011-04-01 | Thales Sa | Procede et systeme permettant la reorganisation sequentielle de signaux |
US20080240296A1 (en) * | 2007-03-27 | 2008-10-02 | Crane Co. | Iterative sequential carrier acquisition |
US8411799B1 (en) * | 2009-11-13 | 2013-04-02 | Maxim Integrated Products, Inc. | Receiver with intermediate frequency error correction |
US9001868B2 (en) | 2013-04-30 | 2015-04-07 | Honeywell International Inc. | Systems and methods for enhancing GNSS numerically controlled oscillators |
US20150049793A1 (en) * | 2013-08-16 | 2015-02-19 | Qualcomm Incorporated | Interface sharing between digital and radio frequency circuits |
US9241366B2 (en) | 2014-03-06 | 2016-01-19 | Apple Inc. | During warm up operations of a first RAT performing tune away operations for a second RAT |
US9462489B2 (en) | 2014-05-15 | 2016-10-04 | Qualcomm Incorporated | Using client-specific RGS to improve performance on multi-SIM and multi-RAT devices |
US10779140B2 (en) * | 2016-07-28 | 2020-09-15 | Lg Electronics Inc. | Vehicle communication apparatus and vehicle |
US10778347B2 (en) * | 2016-07-28 | 2020-09-15 | Lg Electronics Inc. | Vehicle communication apparatus and vehicle |
WO2021014629A1 (ja) * | 2019-07-25 | 2021-01-28 | 日本電信電話株式会社 | 同期検波装置、同期検波方法及びプログラム |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4703520A (en) * | 1986-10-31 | 1987-10-27 | Motorola, Inc. | Radio transceiver having an adaptive reference oscillator |
JPH04369927A (ja) | 1991-06-19 | 1992-12-22 | Hitachi Ltd | Pll発振器 |
US5668828A (en) * | 1992-05-08 | 1997-09-16 | Sanconix, Inc. | Enhanced frequency agile radio |
US5473640A (en) * | 1994-01-21 | 1995-12-05 | At&T Corp. | Phase-lock loop initialized by a calibrated oscillator-control value |
US6223061B1 (en) * | 1997-07-25 | 2001-04-24 | Cleveland Medical Devices Inc. | Apparatus for low power radio communications |
US5983077A (en) * | 1997-07-31 | 1999-11-09 | Ericsson Inc. | Systems and methods for automatic deviation setting and control in radio transmitters |
US6307439B2 (en) * | 1998-11-23 | 2001-10-23 | Garmin Corporation | Voltage controlled oscillator with adaptive closed loop coarse tune |
US6463266B1 (en) * | 1999-08-10 | 2002-10-08 | Broadcom Corporation | Radio frequency control for communications systems |
US7409028B2 (en) | 2000-12-22 | 2008-08-05 | Ericsson Inc. | Clock synchronization in a communications environment |
US7058139B2 (en) * | 2001-11-16 | 2006-06-06 | Koninklijke Philips Electronics N.V. | Transmitter with transmitter chain phase adjustment on the basis of pre-stored phase information |
US7139530B2 (en) * | 2001-12-07 | 2006-11-21 | Kyocera Wireless Corp. | Method and apparatus for calibrating a reference oscillator |
AU2003219841A1 (en) * | 2002-02-22 | 2003-09-09 | Global Locate, Inc. | Method and apparatus for compensating an oscillator in a location-enabled wireless device |
US7546097B2 (en) * | 2002-03-06 | 2009-06-09 | Qualcomm Incorporated | Calibration techniques for frequency synthesizers |
EP1347611A1 (de) * | 2002-03-20 | 2003-09-24 | Siemens Information and Communication Networks S.p.A. | Datenunterstützte frequenzsynchronisierung |
US6747521B1 (en) | 2002-07-26 | 2004-06-08 | Zeevo, Inc. | Analog memory cell in a low power oscillator |
JP4257499B2 (ja) * | 2003-03-12 | 2009-04-22 | 日本電気株式会社 | 周波数補正方法、装置、および移動端末 |
DE602005015355D1 (de) | 2004-11-18 | 2009-08-20 | Research In Motion Ltd | Verfahren und vorrichtung zur präzisen abstimmung in offener schleife der referenzfrequenz innerhalb einer drahtlosen einrichtung |
-
2005
- 2005-04-28 DE DE602005015355T patent/DE602005015355D1/de active Active
- 2005-04-28 CA CA2554123A patent/CA2554123C/en active Active
- 2005-04-28 US US11/116,233 patent/US7508888B2/en active Active
- 2005-04-28 EP EP05739067A patent/EP1820274B1/de active Active
- 2005-04-28 AT AT05739067T patent/ATE436119T1/de not_active IP Right Cessation
- 2005-04-28 WO PCT/CA2005/000643 patent/WO2006053417A1/en active Application Filing
-
2009
- 2009-01-30 US US12/362,569 patent/US8295403B2/en active Active
-
2012
- 2012-09-13 US US13/615,349 patent/US8477878B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
DE602005015355D1 (de) | 2009-08-20 |
WO2006053417A1 (en) | 2006-05-26 |
US20090135956A1 (en) | 2009-05-28 |
CA2554123C (en) | 2012-03-13 |
US20060104394A1 (en) | 2006-05-18 |
US20130016800A1 (en) | 2013-01-17 |
CA2554123A1 (en) | 2006-05-26 |
US8295403B2 (en) | 2012-10-23 |
EP1820274A1 (de) | 2007-08-22 |
EP1820274B1 (de) | 2009-07-08 |
EP1820274A4 (de) | 2007-08-22 |
US7508888B2 (en) | 2009-03-24 |
US8477878B2 (en) | 2013-07-02 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
RER | Ceased as to paragraph 5 lit. 3 law introducing patent treaties |