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. 05, 2007
Filed:
Sep. 09, 2005
Takashi Ochi, Tokyo, JP;
Noriaki Chiba, Tokyo, JP;
Takashi Ochi, Tokyo, JP;
Noriaki Chiba, Tokyo, JP;
Advantest Corporation, Tokyo, JP;
Abstract
There is provided a test apparatus including a PLL circuit for generating a strobe signal of which the timing is shifted according to a given delay control voltage, a variable delay circuit being provided divergently from a path connecting the PLL circuit and the timing comparator and delaying the strobe signal according to the predetermined phase difference of the strobe signal for the output signal, and a first phase comparing unit for comparing a phase of the strobe signal output from the variable delay circuit and a phase of the output signal output from the device under test and supplying the delay control voltage according to the phase difference to the PLL circuit.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile