Invention Grant
US09319049B2 Method and apparatus for compensating a frequency generator such as an oscillator for frequency inaccuracies
有权
用于补偿频率发生器的方法和装置，例如用于频率不准确的振荡器
- Patent Title: Method and apparatus for compensating a frequency generator such as an oscillator for frequency inaccuracies
- Patent Title (中): 用于补偿频率发生器的方法和装置，例如用于频率不准确的振荡器
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Application No.: US14572331Application Date: 2014-12-16
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Publication No.: US09319049B2Publication Date: 2016-04-19
- Inventor: Peter Bagnall , Philip Mattos
- Applicant: STMicroelectronics (Research & Development) Limited
- Applicant Address: GB Marlow
- Assignee: STMicroelectronics (Research & Development) Limited
- Current Assignee: STMicroelectronics (Research & Development) Limited
- Current Assignee Address: GB Marlow
- Agency: Gardere Wynne Sewell LLP
- Priority: GB1322748.3 20131220
- Main IPC: H03L1/02
- IPC: H03L1/02 ; G01S19/23 ; H03L1/00
Abstract:
An input receives a generated frequency having a first frequency component and a second frequency component. A filter block includes filter coefficients describing a relationship between the second frequency component and an environmental characteristic. The filter block predicts the first frequency component based on the environmental characteristic, and updates the filter coefficients based on an offset between the predicted first frequency component and a received frequency corresponding to the first frequency component.
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