Invention Grant
- Patent Title: Asymmetrical bus keeper
- Patent Title (中): 不对称巴士管理员
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Application No.: US13927519Application Date: 2013-06-26
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Publication No.: US09209808B2Publication Date: 2015-12-08
- Inventor: John Douglas McGinn
- Applicant: BLACKBERRY LIMITED
- Applicant Address: CA Waterloo, Ontario
- Assignee: BLACKBERRY LIMITED
- Current Assignee: BLACKBERRY LIMITED
- Current Assignee Address: CA Waterloo, Ontario
- Agency: Perry + Currier, Inc.
- Main IPC: H03K17/16
- IPC: H03K17/16 ; H03K19/0185 ; H03K19/082 ; H03K19/018 ; H03K19/094 ; H03K19/0175
Abstract:
Various embodiments are described herein for an asymmetrical bus keeper circuit that provides asymmetrical drive towards one logic level. The asymmetrical bus keeper circuit comprises a first inverter stage having an input node and an output node, an asymmetrical inverter stage having an input node and an output node and a feedback stage with an input node and an output node. The input node of the asymmetrical inverter stage is connected to the output node of the first inverter stage. The input node of the feedback stage connected to the output node of the asymmetrical inverter stage and the output node of the feedback stage connected to the input node of the first inverter stage. The asymmetrical stage provides asymmetrical drive towards one logic level.
Public/Granted literature
- US20130285703A1 ASYMMETRICAL BUS KEEPER Public/Granted day:2013-10-31
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