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:
Feb. 28, 2006
Filed:
Mar. 13, 2003
Yoshihide Komatsu, Hirakata, JP;
Toru Iwata, Osaka, JP;
Yoshihide Komatsu, Hirakata, JP;
Toru Iwata, Osaka, JP;
Matsushita Electric Industrial Co., Ltd., Kadoma, JP;
Abstract
The present invention provides a transmission device, a reception device, a test circuit and a test method, which enable internal parts of the circuit to operate at high speed, while performing inputting/outputting to/from a tester at low speed. The test circuit comprises a PLLwhich divides the frequency of a test clock input from the tester to generate a PLL clock CKp, a FIFOwhich stores input data input from the tester on the test clock and outputs the data on the PLL clock CKp, an encoderwhich distributes bits of the input data, a driverwhich transmits the output signal from the encoderto the outside, a PLLwhich divides the frequency of the test clock to generate a PLL clock CKp, a decoderwhich arranges the bits of the signal received by a receiver