Invention Grant
- Patent Title: Frequency synthesizer
- Patent Title (中): 频率合成器
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Application No.: US11950274Application Date: 2007-12-04
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Publication No.: US07683724B2Publication Date: 2010-03-23
- Inventor: Ismail Lakkis
- Applicant: Ismail Lakkis
- Applicant Address: US CA San Diego
- Assignee: QUALCOMM Incorporated
- Current Assignee: QUALCOMM Incorporated
- Current Assignee Address: US CA San Diego
- Agent Dang M. Vo
- Main IPC: H03B5/02
- IPC: H03B5/02 ; H03B27/00
Abstract:
A voltage-controlled ring oscillator comprises a ring oscillator having a plurality of differential delay stages for generating signals having a common programmable oscillation frequency with different phases, and a pair of single-sideband mixers coupled to the differential delay stages for producing in-phase and quadrature phase signals having a frequency that is higher than the oscillation frequency.
Public/Granted literature
- US20080136537A1 Frequency Synthesizer Public/Granted day:2008-06-12
Information query
