- Patent Title: Constant impedance transmitter with variable output voltage limits
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Application No.: US15192921Application Date: 2016-06-24
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Publication No.: US09762237B1Publication Date: 2017-09-12
- Inventor: Patrick Isakanian
- Applicant: QUALCOMM Incorporated
- Applicant Address: US CA San Diego
- Assignee: QUALCOMM Incorporated
- Current Assignee: QUALCOMM Incorporated
- Current Assignee Address: US CA San Diego
- Agency: Haynes and Boone, LLP
- Main IPC: H03B1/00
- IPC: H03B1/00 ; H03K19/00 ; H03K17/687 ; G11C11/4074 ; G11C11/408

Abstract:
A transmitter is provided with a plurality of pull-up legs and a plurality of pull-down legs. A controller controls the pull-up legs and the pull-down legs so that a constant output impedance is provided while supporting a range of logic-high output voltages.
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