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:
May. 17, 2005
Filed:
Feb. 28, 2003
Applicants:
Cosmin Iorga, Oak Park, CA (US);
Alan Hussey, Oak Park, CA (US);
Kuok Ling, Calabasas, CA (US);
Inventors:
Assignee:
Teradyne, Inc., Boston, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03H011/26 ;
U.S. Cl.
CPC ...
Abstract
A differential delay cell is disclosed. The delay cell includes a voltage bus and a differential pair of MOS transistors having respective source terminals coupled to define a current node, and respective drain terminal outputs that cooperate to form a differential output. A current source is disposed at the current node while a differential diode-connected load is disposed between the differential pair and the voltage bus. The differential diode-connected load comprises at least one n-channel MOS transistor configured as a diode.