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JP2008005552A |
To provide an apparatus improved to reduce leakage effects for a local oscillator in a direct down conversion receiver.A phase shift filter and the direct down conversion receiver which performs phase compensation are provided. A DC offs...
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JP4031367B2 |
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JP4027935B2 |
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JP2007325321A |
To provide an improved apparatus for reducing the leakage effect of a local oscillator in a direct down-conversion receiver. The present invention provides a phase shift filter and a direct down-conversion receiver which compensates a ph...
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JP2007295635A |
To provide an FE (ferroelectric) dielectric-tuned antenna and a method for frequency tuning a wireless communications antenna. The method comprises steps of forming a radiator (106), forming a dielectric with ferroelectric material proxi...
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JP2007531404A |
The reference of a clock generator and/or timing, and frequency is offered with two or more operational modes, such as power saving mode, clock Mohd, reference Mohd, and pulse-ized Mohd. The resonator which supplies the 1st signal that h...
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JP2007531471A |
The integrated circuit voltage controlled oscillator (VCO) in the equipment which obtains electric power from a battery like a cellular phone can be constituted so that it may align over a very wide frequency range using the comparativel...
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JP2007288412A |
To provide a sealing method of a temperature detection means, which improves responsiveness of temperature detection with a simple configuration preventing a temperature sensor from being exposed to air. A recessed part 26 is charged wit...
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JP3995069B2 |
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JP2007528142A |
A reference frequency oscillator is readjusted in the method of synchronizing a mobile station with a base station in a mobile communications system. The frequency change which originates in the temperature change of a mobile station, an...
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JP2007528159A |
The present invention relates to the method and equipment for setting up reference frequency in receiver decoder integrated equipment (IRD: Integrated ReceiverDecoder). Concretely, the present invention indicates the composition of an el...
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JP2007243586A |
To provide an inexpensive clock correcting circuit to be applied to a specified low power radio system, and also to provide a mobile body terminal, a base station device, and a clock correcting method. As shown in Fig.4, the clock correc...
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JP3973910B2 |
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JP3974679B2 |
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JP3972091B2 |
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JP2007214790A |
To provide a DPLL (digital phase locked loop) circuit with hold-over function that generates a temperature-controlled reference clock with high precision for free-running frequency control, especially, during holdover regarding a digital...
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JP2007524303A |
removing the disadvantageous point of the conventional technology -- high long-term stability, characteristic (1) (2) low phase noise, (3) high heat resistance, and (4) -- it is the purpose of the present invention to offer the MEMS refe...
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JP3963492B2 |
PURPOSE: To provide an improved method and device for reducing power consumption in an integrated circuit device. CONSTITUTION: A clock rate for a device is controlled by using an integrated circuit responding to a device temperature. Th...
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JP3963282B2 |
To operate in different feeding voltages with one PLL by detecting the value of power supply voltage to a PLL circuit and adjusting an operation frequency of the PLL circuit based on a detection value. A detector detects the value of pow...
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JP3963421B2 |
To solve the problem that an exact system parameter is maintained while a comparatively inexpensive oscillator is required. A controlled oscillator generates a cyclic output signal having first and second output level states. The oscilla...
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JP2007209022A |
To provide a PLL control oscillator wherein miniaturization is promoted, the productivity is enhanced and the electrical performance is improved. In the PLL control oscillator, provided with a temperature compensation crystal oscillator,...
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JP2007194711A |
To provide a microcomputer, capable of correcting an oscillation frequency itself of a clock signal generated through the use of a CR oscillation circuit to be constant under an environment where temperature changes. An EEPROM of the mic...
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JP3950654B2 |
To provide a pseudo cubic function generating circuit with a simple circuit structure with which a large change in voltage can be directly obtained, less noise components are generated, cost is low, and a cubic function curve can be easi...
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JP2007518351A |
It is explained by this specification and there is invention of a large number illustrated. In one mode, the present invention receives the output signal of the detailed electromechanical resonator which generates an output signal, and a...
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JP2007515083A |
irrespective of [that the purpose of the present invention makes a frequency oscillator, i. E. , external disturbance, ] -- reliability -- in order to function highly and to maintain the frequency of its exclusive use, it has easy contro...
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JP3921362B2 |
To provide a temperature compensation crystal oscillator that can maintain a phase noise characteristic in good condition. In the temperature compensation crystal oscillator where a voltage variable capacitive element is inserted to an o...
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JP3917177B2 |
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JP2007124394A |
To provide an oscillator capable of obtaining a more stable oscillation frequency by reducing influence due to the variation of an element characteristic, and the fluctuation in temperature or power source voltage.The oscillator comprise...
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JP2007511113A |
A strained silicon voltage controlled oscillator (VCO) is combined with the 2nd PMOS equipment which has a strained silicon layer including the 1st P channel metal oxide semiconductor (PMOS) equipment which has a strained silicon layer.
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JP3901693B2 |
To provide an oscillation circuit and method for controlling the oscillation circuit capable of ensuring a required oscillation frequency band, even when the variable width of the oscillated frequency from the oscillation circuit driven ...
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JP2007505543A |
An electromechanical transducer (1) has a resonator element (20) and an actuator (30) which produces the elastic deformation of a resonator element depending on an electric input signal. For temperature stabilization, an electromechanica...
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JP3883411B2 |
To embody an oscillation circuit which can have its oscillation fre quency easily controlled, correct temperature characteristics of an oscillator, and generates an oscillation signal with a high temperature characteristic although a SAW...
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JP2007036556A |
To suppress the consumed electric energy of a high accuracy reference oscillator such as an atomic oscillator and a constant temperature oven controlled crystal oscillator.Upper frames 71, lower frames 72, side face upper frames 73, and ...
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JP2007036555A |
To suppress the consumed electric energy of a high accuracy reference oscillator such as an atomic oscillator and a constant temperature oven controlled crystal oscillator.Upper frames 71, lower frames 72, side face upper frames 73, and ...
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JP2007501574A |
A voltage controlled oscillator (200) possesses the circuit (205) combined ranging over 3 terminal device (203), and the 1st terminal (208) and 2nd terminal (210) of this device. Preferably, a circuit (205) serves to reduce the phase noi...
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JP2007013878A |
To provide a synchronous oscillation apparatus and synchronous oscillation method in which a reference oscillation frequency is allowed to have accuracy, equal with or higher than a fixed level compensating for aging, without using a hig...
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JP2007500479A |
[Subject] It has the frequency [as / in a silicon resonator] which does not necessarily need temperature stability, and the thing for which the layout based on the resonator which can be used in order to obtain the time base of low cost ...
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JP2006344983A |
To provide an oscillation frequency stabilizer of an oscillation transistor.A frequency stabilizing oscillator 120 includes an oscillation transistor 22. A heating element is placed near the oscillation transistor 22. A temperature senso...
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JP2006526946A |
The 1st phase locked loop (PLL) circuit (301) includes the input for receiving the timing reference signal from the oscillator 303, the controllable oscillator circuit (805) which supplies an oscillator output signal, and two or more coe...
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JP2006320026A |
To provide an enhanced tunable f-e filter capable of providing a tunable range higher than a desired frequency domain through low I.L. and out-of-high-band rejection, and a method of designing said filter.The present invention quantifies...
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JP3833472B2 |
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JP2006523063A |
Especially the temperature detected with the equipment which detects the temperature of the oscillator crystal 2 allotted on the support medium of a mobile wireless machine machine should be the most exact possible replica of the tempera...
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JP2006519508A |
The present invention relates to the method and equipment for control of the frequency of the source of frequency (22). When there is connection with a reference frequency generator, a control unit (24), It stores in the storing part (26...
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JP2006210967A |
To provide a rubidium atomic oscillator, wherein the generated heat from the oscillator self is drastically reduced so as to be able to use a constant temperature bath attached crystal oscillator on market the specification of a high tem...
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JP3808098B2 |
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JP2006180400A |
To decrease write clock jitter by suppressing variations of power (power supply ripple) to be supplied to a PLL circuit.An image signal is modulated in an LD modulator 10, a light beam is generated by controlling a laser beam generator (...
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JP2006173213A |
To provide a temperature stabilizing device which highly precisely stabilizes the temperature of an object.The temperature stabilizing device for stabilizing the temperature of the object to a reference temperature comprises an oscillato...
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JP2006170673A |
To solve the problems wherein deviation is generated in an output frequency of DPLL by a temperature characteristic of TCXO3 for supplying a reference signal of the DPLL at the application time of power of a receiving device in SS demodu...
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JPWO2004084403A1 |
物理量と発振周波数のドリフト値との間に一
定の特性を持つ発振器において、特性の変化
を適応的に補正し、常に発振周波数ドリフト
値の推定を可能とする。発振周波数が温...
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JP2006109512A |
To provide a tunable ferroelectric multiplexer for use in CDMA communications devices.Tunable ferroelectric capacitors are used to tune the resonance frequencies of several resonators used in a multiplexer and to tune the frequency respo...
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