Title:
周波数および/または位相補償された微細電気機械発振器
Document Type and Number:
Japanese Patent JP5129483
Kind Code:
B2
Abstract:
A compensated microelectromechanical oscillator, having a microelectromechanical resonator that generates an output signal and frequency adjustment circuitry, coupled to the microelectromechanical resonator to receive the output signal of the microelectromechanical resonator and, in response to a set of values, to generate an output signal having second frequency. In one embodiment, the values may be determined using the frequency of the output signal of the microelectromechanical resonator, which depends on the operating temperature of the microelectromechanical resonator and/or manufacturing variations of the microelectromechanical resonator. In one embodiment, the frequency adjustment circuitry may include frequency multiplier circuitry, for example, PLLs, DLLs, digital/frequency synthesizers and/or FLLs, as well as any combinations and permutations thereof. The frequency adjustment circuitry, in addition or in lieu thereof, may include frequency divider circuitry, for example, DLLs, digital/frequency synthesizers (for example, DDS) and/or FLLs, as well as any combinations and permutations thereof.
Inventors:
Aaron, Partridge
Marx, Lutz
Marx, Lutz
Application Number:
JP2006549238A
Publication Date:
January 30, 2013
Filing Date:
October 20, 2004
Export Citation:
Assignee:
ROBERT BOSCH GMBH
International Classes:
H03L1/02; H03B5/04; H03B5/30; H03L1/04; H03L7/07; H03L7/081; H03L7/197
Domestic Patent References:
| JP2003204260A | ||||
| JP98551A | ||||
| JP22721A | ||||
| JP200369426A |
Foreign References:
| WO1997040580A1 | ||||
| WO2003073607A1 |
Attorney, Agent or Firm:
Shinjiro Ono
Yasushi Kobayashi
Akio Chiba
Hiroyuki Tomita
Takuto Tanaka
Yasushi Kobayashi
Akio Chiba
Hiroyuki Tomita
Takuto Tanaka