US Patent 8704592 Traveling wave amplifier with pre-emphasis function

Patent 8704592 was granted and assigned to Sumitomo Electric Industries on April, 2014 by the United States Patent and Trademark Office.

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Patent

Patent attributes

Current Assignee

Sumitomo Electric Industries

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

8704592

Date of Patent

April 22, 2014

Patent Application Number

13428374

Date Filed

March 23, 2012

Patent Citations Received

‌

US Patent 12015389 Transmission-line-based signal distribution and aggregation

Patent Primary Examiner

‌

Henry Choe

Patent abstract

A traveling wave amplifier (TWA) primarily for driving a semiconductor optical device is disclosed. The TWA of an embodiment provides a plurality of differential amplifiers of the first type and an additional differential amplifier of the second type, where are they are connected between the input and the output of the TWA. The differential amplifiers of the first type provide a first delay from the input to the output, while, the differential amplifier of the second type provide a second delay longer than the first delay between the input and the output of the TWA.

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