Modifications of the phase-locked loop for ensuring constant frequency when the power supply fails or is interrupted

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HELECTRICITY H03Electronic circuits H03LAUTOMATIC CONTROL, STARTING, SYNCHRONISATION, OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES H03L2207/00Indexing scheme relating to automatic control of frequency or phase and to synchronisation

Current Industry

H03L2207/08Modifications of the phase-locked loop for ensuring constant frequency when the power supply fails or is interrupted

Industries

Patents Grantslast 30 patents

Information Patent Grant
Digital phase locked loop and operating method of digital phase loc...
- Patent number 10,158,367
- Issue date Dec 18, 2018
- Samsung Electronics Co., Ltd.
- Wonsik Yu
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Phase continuity technique for frequency synthesis
- Patent number 9,893,875
- Issue date Feb 13, 2018
- QUALCOMM Incorporated
- Marco Zanuso
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Voltage controlled oscillator, semiconductor device, and electronic...
- Patent number 9,843,308
- Issue date Dec 12, 2017
- Semiconductor Energy Laboratory Co., Ltd.
- Munehiro Kozuma
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Voltage controlled oscillator, semiconductor device, and electronic...
- Patent number 9,397,637
- Issue date Jul 19, 2016
- Semiconductor Energy Laboratory Co., Ltd.
- Munehiro Kozuma
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Semiconductor device and automobile control system
- Patent number 9,348,403
- Issue date May 24, 2016
- Renesas Electronics Corporation
- Satoshi Yoshida
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Supply voltage drift insensitive digitally controlled oscillator an...
- Patent number 9,306,577
- Issue date Apr 5, 2016
- Mediatek Inc.
- Yi-Chieh Huang
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Digital PLL with dynamic loop gain control
- Patent number 8,901,975
- Issue date Dec 2, 2014
- Rambus Inc.
- Reza Navid
- G11 - INFORMATION STORAGE
Information Patent Grant
System for generating clock signal
- Patent number 8,760,202
- Issue date Jun 24, 2014
- FREESCALE SEMICONDUCTOR, INC.
- Samaksh Sinha
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Fast locking phase-locked loop
- Patent number 8,643,414
- Issue date Feb 4, 2014
- Rambus Inc.
- Reza Navid
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Clock generator circuits with non-volatile memory for storing and/o...
- Patent number 8,553,473
- Issue date Oct 8, 2013
- Rambus Inc.
- Jaeha Kim
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Phase locked loop circuit with selectable feedback paths
- Patent number 8,531,222
- Issue date Sep 10, 2013
- Lattice Semiconductor Corporation
- Barry Britton
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Apparatus and method to hold PLL output frequency when input clock...
- Patent number 8,446,193
- Issue date May 21, 2013
- National Semiconductor Corporation
- Ben-yong Zhang
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Voltage hold circuit
- Patent number 8,330,513
- Issue date Dec 11, 2012
- Etron Technology, Inc.
- Yu-Sheng Lai
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Method of low power PLL for low jitter demanding applications
- Patent number 7,786,809
- Issue date Aug 31, 2010
- Freescale
- Michael Priel
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Apparatus for providing an oscillating signal to a load
- Patent number 7,414,487
- Issue date Aug 19, 2008
- QUALCOMM Incorporated
- Gregory Simon Walsh
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Cascaded delay locked loop circuit
- Patent number 7,154,978
- Issue date Dec 26, 2006
- Motorola, Inc.
- Jui-Kuo Juan
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Low power phase locked loop frequency synthesizer
- Patent number 6,795,517
- Issue date Sep 21, 2004
- Koninklijke Philips Electronics N.V.
- Paul R. Marshall
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Method and apparatus for reducing PLL lock time
- Patent number 6,731,146
- Issue date May 4, 2004
- QUALCOMM Incorporated
- Keith Gallardo
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Radio receiver
- Patent number 6,289,208
- Issue date Sep 11, 2001
- Sony Corporation
- Nobuo Hareyama
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Look-ahead enabling charge pump in phase-locked loop circuits
- Patent number 6,278,304
- Issue date Aug 21, 2001
- International Business Machines Corporation
- Darrell Livezey
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
PLL frequency synthesizer using frequency dividers reset by initial...
- Patent number 6,173,025
- Issue date Jan 9, 2001
- NEC Corporation
- Jun Jokura
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Digital phase lock loop divider cycling method, apparatus, and comm...
- Patent number 6,114,888
- Issue date Sep 5, 2000
- Conexant Systems, Inc.
- Kenneth Scott Walley
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Method and apparatus for reducing standby current in communications...
- Patent number 5,943,613
- Issue date Aug 24, 1999
- Telefonaktiebolaget LM Ericsson
- Heino Jean Wendelrup
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
TDMA mobile unit frequency synthesizer having power saving mode dur...
- Patent number 5,594,735
- Issue date Jan 14, 1997
- NEC Corporation
- Jun Jokura
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Phase-locked loop circuit
- Patent number 5,581,214
- Issue date Dec 3, 1996
- Mitsubishi Denki Kabushiki Kaisha
- Tetsuya Iga
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
TDMA mobile unit frequency synthesizer having power saving mode dur...
- Patent number 5,541,929
- Issue date Jul 30, 1996
- NEC Corporation
- Jun Jokura
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Fast recovering charge pump for controlling a VCO in a low power cl...
- Patent number 5,523,724
- Issue date Jun 4, 1996
- Cirrus Logic, Inc.
- Mahmud Assar
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Mobile wireless set with improved intermittent operation control an...
- Patent number 5,475,877
- Issue date Dec 12, 1995
- Mitsubishi Denki Kabushiki Kaisha
- Keigo Adachi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Frequency synthesizer using intermittently controlled phase locked...
- Patent number 5,379,002
- Issue date Jan 3, 1995
- NEC Corporation
- Jun Jokura
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Frequency synthesizer with VCO output control
- Patent number 5,335,365
- Issue date Aug 2, 1994
- Motorola, Inc.
- Wayne W. Ballantyne
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
DIGITAL PHASE LOCKED LOOP AND OPERATING METHOD OF DIGITAL PHASE LOC...
- Publication number 20180375523
- Publication date Dec 27, 2018
- Samsung Electronics Co., Ltd.
- Wonsik Yu
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
SUPPLY VOLTAGE DRIFT INSENSITIVE DIGITALLY CONTROLLED OSCILLATOR AN...
- Publication number 20140240053
- Publication date Aug 28, 2014
- MEDIATEK INC.
- Yi-Chieh HUANG
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
DIGITAL PLL WITH DYNAMIC LOOP GAIN CONTROL
- Publication number 20140062549
- Publication date Mar 6, 2014
- RAMBUS INC.
- Reza Navid
- G11 - INFORMATION STORAGE
Information Patent Application
PHASE LOCKED LOOP CIRCUIT WITH SELECTABLE FEEDBACK PATHS
- Publication number 20140009194
- Publication date Jan 9, 2014
- Lattice Semiconductor Corporation
- Barry Britton
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
APPARATUS AND METHOD TO HOLD PLL OUTPUT FREQUENCY WHEN INPUT CLOCK...
- Publication number 20120280735
- Publication date Nov 8, 2012
- National Semiconductor Corporation
- Ben-yong Zhang
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
VOLTAGE HOLD CIRCUIT
- Publication number 20120169379
- Publication date Jul 5, 2012
- Yu-Sheng Lai
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
SEMICONDUCTOR DEVICE AND AUTOMOBILE CONTROL SYSTEM
- Publication number 20120161833
- Publication date Jun 28, 2012
- Renesas Electronics Corporation
- Satoshi Yoshida
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Clock Generator Circuits with Non-Volatile Memory for Storing and/o...
- Publication number 20110228616
- Publication date Sep 22, 2011
- Rambus, Inc.
- Jaeha Kim
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
Apparatus for providing an oscillating signal to a load
- Publication number 20060273861
- Publication date Dec 7, 2006
- QUALCOMM (UK) LIMITED
- Gregory Simon Walsh
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
Cascaded delay locked loop circuit
- Publication number 20030099321
- Publication date May 29, 2003
- Jui-Kuo Juan
- H03 - BASIC ELECTRONIC CIRCUITRY

Modifications of the phase-locked loop for ensuring constant frequency when the power supply fails or is interrupted

Industry

Parent Industries

Current Industry

Patents Grantslast 30 patents

Digital phase locked loop and operating method of digital phase loc...

Phase continuity technique for frequency synthesis

Voltage controlled oscillator, semiconductor device, and electronic...

Voltage controlled oscillator, semiconductor device, and electronic...

Semiconductor device and automobile control system

Supply voltage drift insensitive digitally controlled oscillator an...

Digital PLL with dynamic loop gain control

System for generating clock signal

Fast locking phase-locked loop

Clock generator circuits with non-volatile memory for storing and/o...

Phase locked loop circuit with selectable feedback paths

Apparatus and method to hold PLL output frequency when input clock...

Voltage hold circuit

Method of low power PLL for low jitter demanding applications

Apparatus for providing an oscillating signal to a load

Cascaded delay locked loop circuit

Low power phase locked loop frequency synthesizer

Method and apparatus for reducing PLL lock time

Radio receiver

Look-ahead enabling charge pump in phase-locked loop circuits

PLL frequency synthesizer using frequency dividers reset by initial...

Digital phase lock loop divider cycling method, apparatus, and comm...

Method and apparatus for reducing standby current in communications...

TDMA mobile unit frequency synthesizer having power saving mode dur...

Phase-locked loop circuit

TDMA mobile unit frequency synthesizer having power saving mode dur...

Fast recovering charge pump for controlling a VCO in a low power cl...

Mobile wireless set with improved intermittent operation control an...

Frequency synthesizer using intermittently controlled phase locked...

Frequency synthesizer with VCO output control

Patents Applicationslast 30 patents

DIGITAL PHASE LOCKED LOOP AND OPERATING METHOD OF DIGITAL PHASE LOC...

SUPPLY VOLTAGE DRIFT INSENSITIVE DIGITALLY CONTROLLED OSCILLATOR AN...

DIGITAL PLL WITH DYNAMIC LOOP GAIN CONTROL

PHASE LOCKED LOOP CIRCUIT WITH SELECTABLE FEEDBACK PATHS

APPARATUS AND METHOD TO HOLD PLL OUTPUT FREQUENCY WHEN INPUT CLOCK...

VOLTAGE HOLD CIRCUIT

SEMICONDUCTOR DEVICE AND AUTOMOBILE CONTROL SYSTEM

Clock Generator Circuits with Non-Volatile Memory for Storing and/o...

Apparatus for providing an oscillating signal to a load

Cascaded delay locked loop circuit