Teradyne

About: Teradyne is a company organization based out in Boston, Massachusetts, United States. It is known for research contribution in the topics: Signal & Automatic test equipment. The organization has 828 authors who have published 999 publications receiving 15695 citations.

Differential pair circuit

Abstract: A differential pair circuit includes a first transistor having a first control terminal, a first input terminal, and a first output terminal; a second transistor having a second control terminal, a second input terminal, and a second output terminal, a first buffer stage including a third transistor having a third control terminal, a third input terminal, and a third output terminal; and a second buffer stage including a fourth transistor having a fourth control terminal, a fourth input terminal, and a fourth output terminal. The first output terminal and the second output terminal are electrically connected; the third output terminal and the first control terminal are electrically connected; the fourth output terminal and the second control terminal are electrically connected; the first input terminal and the fourth input terminal are electrically connected; and the second input terminal and the third input terminal are electrically connected.

Electronic detection of signatures

Abstract: A method is described for retrieving, by a test system, a formation profile associated with the storage cell, the formation profile comprising one or more formation segments, with a formation segment comprising an action to be performed upon a detection of a signature value; measuring, by the test system, a value of a parameter of the formation segment; detecting, based on a comparison between the value of the parameter and one or more signatures associated with the formation segment, that the value of the parameter comprises the signature value; and performing the action specified in the formation segment.

Precision incremental stepping device

Abstract: A PRECISION INCREMENTAL STEPPING DEVICE INCLUDING A MOVABLE INDEXING MEMBER HAVING A PLURALITY OF IDENTICAL CONICAL DEPRESSIONS FORMED THEREON AT SPACED REGULAR INTERVALS. A PAIR OF PLUNGERS HAVING IDENTICAL CONICAL ENDS, COMPLEMENTARY TO THE CONICAL DEPRESSIONS ON THE INDEXING MEMBER ARE MOUNTED ABOVE THE INDEXING MEMBER FOR ALTERNATING MOVEMENT THAT IS TOWARD AND AWAY FROM THE DEPRESSIONS SO THAT AS ONE PLUNGER MOVES DOWNWARDLY TOWARD THE INDEXING MEMBER THE OTHER PLUNGER WILL MOVE UPWARDLY AWAY FROM THE INDEXING MEMBER. THE AXES OF THE PLUNGERS ARE SPACED SO THAT WHEN THE CONE OF ONE PLUNGER IS IN ENGAGEMENT WITH A GIVEN DEPRESSION, THE CONE OF THE OTHER, REMOTE PLUNGER WILL BE DISPOSED ABOVE AND IN MISALIGNMENT BETWEEN A SELECTED PAIR OF DEPRESSIONS. WHEN THE POSITION OF THE PLUNGERS IS REVERSED TO MOVE THE REMOTE PLUNGER DOWNWARDLY TOWARD THE INDEXING MEMBER, THE CONE OF THE DOWNWARDLY MOVING PLUNGER IS GUIDED INTO A PREDETERMINED ONE OF THE SELECTED PAIR OF DEPRESSIONS BY MEANS OF A TRUNCATED SURFACE FORMED ON THE CONE WHICH ENGAGES THE DESIRED ONE OF THE DEPRESSIONS. DOWNWARD MOVEMENT OF THE PLUNGER IS CONTINUED UNTIL ITS CONE IS WEDGED INTO AND IS SEATED FULLY, IN COMPLEMENTARY ENGAGEMENT, IN THE PREDETERMINED DEPRESSION TO CAUSE THE INDEXING MEMBER TO ADVANCE BY A PREDETERMINED INCREMENT.