The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 29, 1999
Filed:
Oct. 09, 1997
Applicant:
Inventor:
Thai M Nguyen, San Jose, CA (US);
Assignee:
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03B / ;
U.S. Cl.
CPC ...
327108 ; 327 66 ; 327405 ; 327478 ; 323312 ; 323315 ;
Abstract
An improved current mode driver circuit uses N-type transistors in current mirrors to achieve higher speed operation at lower cost. A pair of matched low frequency P-type transistors provide a small amount of current to each side of the differential amplifier which comprise of only N-type transistors in a current mirror connection to amplify the current supplied thereto.