Invention Grant
- Patent Title: Interleaved voltage controlled oscillator
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Application No.: US12098490Application Date: 2008-04-07
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Publication No.: US07786813B2Publication Date: 2010-08-31
- Inventor: David W. Boerstler , Eskinder Hailu , Jieming Qi , Mike Shen
- Applicant: David W. Boerstler , Eskinder Hailu , Jieming Qi , Mike Shen
- Applicant Address: US NY Armonk
- Assignee: International Business Machines Corporation
- Current Assignee: International Business Machines Corporation
- Current Assignee Address: US NY Armonk
- Agency: Cantor Colburn LLP
- Agent Matthew Talpis
- Main IPC: H03K3/03
- IPC: H03K3/03

Abstract:
An interleaved voltage-controlled oscillator (VCO) is disclosed. The VCO includes a ring circuit comprising a series connection of main logic inverter gates, a plurality of delay elements connected in parallel with a selected sequence of the main logic inverter gates, at least one temperature compensation circuit comprising a logic inverter gate in series connection with one or more field effect transistors, the field effect transistor responsive to a compensating voltage input that is proportional to temperature, and an electronic circuit in signal communication with the at least one temperature compensation circuit and configured to provide a voltage signal responsive to temperature. Each delay element includes a feedforward section, comprising controls for regulating signal transmission through feedforward elements responsive to one or more control voltages, and a proportional section, comprising controls for regulating signal transmission through at least one logic inverter gate.
Public/Granted literature
- US20080186104A1 INTERLEAVED VOLTAGE CONTROLLED OSCILLATOR Public/Granted day:2008-08-07
Information query
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