Patents
Patents for H03L 1 - Stabilisation of generator output against variations of physical values, e.g. power supply (2,641)
02/1998
02/25/1998EP0825717A1 High thermal gain oven
02/25/1998EP0825714A2 Very low gain voltage-controlled oscillator
02/18/1998EP0824290A1 Controllable-frequency oscillator
02/17/1998US5719827 Highly stable frequency generator
02/17/1998US5719533 Function generator
01/1998
01/20/1998CA2000756C Method of making a crystal oscillator desensitized to acceleration fields
01/08/1998DE19626778A1 Cooling arrangement for technical instrument
01/06/1998US5705957 Temperature-compensated piezoelectric oscillator
12/1997
12/30/1997US5703542 Compact temperature stabilized crystal oscillator
12/17/1997EP0813306A1 Temperature stabilised oscillator and proximity switch using the same
12/16/1997US5699024 Accurate integrated oscillator circuit
12/13/1997CA2206025A1 Temperature stabilized oscillator and proximity switch containing the oscillator
12/03/1997CN1166729A Wireless communication device and method of frequency-drift compensation
11/1997
11/26/1997CN1166235A Function-differentiated temp. compensated crystal oscillator and method of producing the same
11/26/1997CN1166093A Method and apparatus for temperature compensation of reference oscillator in communication device
11/25/1997US5691671 Method and apparatus for a crystal oscillator using piecewise linear odd symmetry temperature compensation
11/11/1997US5686855 Process monitor for CMOS integrated circuits
10/1997
10/30/1997WO1997040580A1 Frequency synthesizer with temperature compensation and frequency multiplication and method of providing the same
10/29/1997EP0803133A1 Self stabilizing heater controlled oscillating transistor
10/15/1997EP0800724A1 Lamp oscillator for atomic frequency standards
10/08/1997EP0799496A1 Function-differentiated temperature compensated crystal oscillator and method of producing the same
09/1997
09/30/1997US5673008 Voltage-controlled oscillator and PLL circuit exhibiting high-frequency band operation, linear frequency characteristics, and power-source variation immunity
09/24/1997EP0797304A2 Improvements in or relating to radio receivers
09/16/1997US5668506 Temperature compensated crystal oscillator
09/10/1997EP0686322B1 Method and apparatus for providing a modified temperature compensation signal in a tcxo circuit
08/1997
08/19/1997US5659884 System with automatic compensation for aging and temperature of a crystal oscillator
08/19/1997US5659271 Voltage controlled oscillator circuit for reducing the effects of vibration on quartz crystal oscillator
08/19/1997US5659270 Apparatus and method for a temperature-controlled frequency source using a programmable IC
08/05/1997US5654718 For locking to a signal transmitted from a satellite
07/1997
07/29/1997US5652550 Method and apparatus for isolating an oscillator from external mechanical and thermal effects using aerogels
07/29/1997US5652549 Integrated circuit ring oscillator having line driver with double line feedback
07/15/1997US5649320 Automatic frequency control loop and temperature compensation for a receiver
07/15/1997US5648741 Circuit having overall transfer function providing temperature compensation
07/09/1997CN1154000A Function generating circuit
07/01/1997US5644271 Temperature compensated clock
06/1997
06/25/1997CN1152978A Method for controlling a phase-locked loop, and a phase-locked loop
05/1997
05/28/1997CN1150718A Ovenized crystal assembly and method of manufacture
05/20/1997US5631596 Process monitor for CMOS integrated circuits
05/14/1997CN1149940A Quartz oscillator device and its adjusting method
05/13/1997US5629649 Frequency standard generator synchronized with satellite or other communication network reference clocks
04/1997
04/17/1997WO1997014183A1 Function-differentiated temperature compensated crystal oscillator and method of producing the same
04/15/1997US5621771 Open loop switching frequency source utilizing closed loop stabilization
04/02/1997EP0766376A1 Quartz oscillator device and its adjusting method
03/1997
03/26/1997EP0764366A1 A method for controlling a phase-locked loop, and a phase-locked loop
03/19/1997EP0682827B1 Voltage controlled oscillator with efficient process compensation
03/19/1997EP0474729B1 Voltage control oscillator with automatic current control
03/18/1997US5612981 Apparatus and methods for improving timing recovery of a system clock
03/04/1997US5608359 Function-differentiated temperature compensated crystal oscillator and method of producing the same
02/1997
02/18/1997US5604468 Frequency synthesizer with temperature compensation and frequency multiplication and method of providing the same
02/18/1997US5604467 Temperature compensated current source operable to drive a current controlled oscillator
02/18/1997US5604465 Adaptive self-calibration for fast tuning phaselock loops
02/04/1997US5600284 High performance voltage controlled oscillator
01/1997
01/23/1997WO1997002657A1 Automatic local oscillator frequency stabilization process in radio receivers employing a wide-band tunable local dielectric-resonator oscillator and associated device
01/16/1997WO1997001887A1 Method for automatically compensating for accuracy degradation of a reference oscillator
01/08/1997CN1139843A Radio pager
01/01/1997CN1139500A Low power temperature compensated crystal oscillator
12/1996
12/19/1996DE19623799A1 Beheizte Kristallvorrichtung und Verfahren zur Herstellung Heated crystal device and process for producing
12/19/1996DE19519421A1 Telekommunikationsendgerät Telecommunications terminal
12/12/1996DE19520631A1 Precision thermostat for maintaining constant temp
11/1996
11/28/1996WO1996037959A1 Telecommunication terminal
11/27/1996EP0744836A2 Temperature compensated crystal oscillator
11/27/1996CN1136727A Temperature compensation piezoelectric oscillator
11/19/1996US5576666 Fractional-N frequency synthesizer with temperature compensation
11/19/1996CA2054403C Mounting arrangement for a high frequency oscillator
11/13/1996EP0741930A1 Low power temperature compensated crystal oscillator
11/12/1996US5574408 Oscillator circuit having a memory that stores the characteristic information of the individual oscillator crystal
11/06/1996CN1135125A Radio communication apparatus and adjusting method thereof
11/05/1996US5572169 Temperature-compensated piezoelectric oscillator
10/1996
10/30/1996EP0740421A2 Temperature-compensated piezoelectric oscillator
10/23/1996CN1134068A Delay detection circuit and low-noise oscillation circuit using same
10/17/1996WO1996032775A1 Quartz oscillator device and its adjusting method
10/16/1996EP0738063A1 Radio pager
10/09/1996CN1132962A Highly stable frequency generator
10/02/1996EP0735689A2 Monolithic integrated voltage controlled oscillator circuit
10/02/1996EP0735678A2 Monolithically integrated oscillator
10/02/1996EP0735675A2 Radio communication apparatus and adjusting method thereof
09/1996
09/29/1996CA2172704A1 Circuit arrangement for compensating frequency deviations of a voltage-controlled oscillator, using a second oscillator
09/29/1996CA2172693A1 Monolithically integrated oscillator
09/24/1996US5559842 Network-controlled reference frequency generator
09/03/1996US5552749 Method for automatically compensating for accuracy degradation of a reference oscillator
08/1996
08/22/1996WO1996025796A1 Power dissipation control system for vlsi chips
08/21/1996EP0727876A1 A temperature compensated crystal oscillator
08/20/1996US5548252 Digital temperature compensated crystal oscillator
08/15/1996WO1996024986A1 Crystal oscillator with automatic compensation for aging and temperature
08/06/1996US5543761 Prepackaged crystal oscillator calibration and configuration interface
07/1996
07/30/1996US5542113 Carrier derived frequency stabilizer for a radio communication transmitter
07/24/1996EP0723340A1 Delay detection circuit and low-noise oscillation circuit using the same
07/18/1996WO1996021950A1 Self stabilizing heater controlled oscillating transistor
07/16/1996US5537449 Clock synchronizing circuitry having a fast tuning circuit
07/16/1996US5537049 Temperature compensating circuit
07/04/1996WO1996020535A1 Lamp oscillator for atomic frequency standards
07/03/1996EP0720298A2 Temperature compensated oscillator
06/1996
06/25/1996US5530408 Method of making an oven controlled crystal oscillator the frequency of which remains ultrastable under temperature variations
06/11/1996US5525936 Temperature-compensated oscillator circuit
06/06/1996WO1996017433A1 Low power temperature compensated crystal oscillator
05/1996
05/28/1996US5521557 Delay detection circuit and low-noise oscillation circuit using the same
05/21/1996US5519388 Method and apparatus for active temperature compensation in a radiowave transmitter
05/14/1996US5517053 Self stabilizing heater controlled oscillating transistor
05/08/1996EP0711040A1 Frequency generator wit a high stability
05/05/1996CA2161938A1 Highly stable frequency generator
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