Invention Grant
- Patent Title: Low power high speed quadrature generator
- Patent Title (中): 低功率高速正交发生器
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Application No.: US13934306Application Date: 2013-07-03
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Publication No.: US09166571B2Publication Date: 2015-10-20
- Inventor: Lawrence E. Connell , Daniel P. McCarthy , Brian T. Creed , Kent Jaeger
- Applicant: Futurewei Technologies, Inc.
- Applicant Address: US TX Plano
- Assignee: Futurewei Technologies, Inc.
- Current Assignee: Futurewei Technologies, Inc.
- Current Assignee Address: US TX Plano
- Agency: Conley Rose, P.C.
- Agent Grant Rodolph; William H. Dietrich
- Main IPC: H03K3/00
- IPC: H03K3/00 ; H03K3/356

Abstract:
An apparatus comprising a latch comprising a differential inverter configured to receive a differential input signal and generate a differential output signal, a pair of cross-coupled inverters coupled to the differential inverter, and a first clock switch configured to couple the differential inverter to a voltage source, a second clock switch configured to couple the differential inverter to a ground, wherein the first clock switch and the second clock switch are configured to receive a differential clock signal, and wherein the first clock switch and the second clock switch are both open or both closed depending on the differential clock signal, a second latch, wherein the first latch and the second latch are configured as a frequency divider, and a logic circuit coupled to each latch, wherein the logic circuits are configured to generate both an in-phase reference output signal and a quadrature output signal.
Public/Granted literature
- US20140361821A1 Low Power High Speed Quadrature Generator Public/Granted day:2014-12-11
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