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:
Nov. 01, 2011
Filed:
Jul. 12, 2007
Takashi Muto, Hamura, JP;
Yasuhiro Fujimura, Hamura, JP;
Keiichi Higeta, Hamura, JP;
Junji Baba, Hadano, JP;
Takayuki Muranaka, Kawasaki, JP;
Isao Kimura, Yokohama, JP;
Takashi Muto, Hamura, JP;
Yasuhiro Fujimura, Hamura, JP;
Keiichi Higeta, Hamura, JP;
Junji Baba, Hadano, JP;
Takayuki Muranaka, Kawasaki, JP;
Isao Kimura, Yokohama, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
In a data transfer device which cancells an offset of a differential amplifier for amplifying a received signal and an offset caused by characteristics of a differential transmission line and selects optimum conditions such as pre-emphasis amount of an output pre-emphasis circuit, a first chip (transmission side LSI=transfer engine) and a second chip (reception side LSI=multiplexing engine) are connected to each other through differential transmission lineand a SerDes (serializer)and a SerDes (deserializer)are used to make signal transmission, so that optimum setting conditions of an offset amount of an offset cancellation circuit included in an input buffer amplifier and a pre-emphasis amount of pre-emphasis circuit included in an output buffer are decided in training using a training PRBS generatorand a training PRBS comparator