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. 15, 2007
Filed:
Oct. 05, 2001
Noboru Katta, Itami, JP;
Yuji Mizuguchi, Hirakata, JP;
Takahisa Sakai, Amagasaki, JP;
Hirotsugu Kawada, Sakai, JP;
Toshihiko Kurosaki, Kobe, JP;
Noboru Katta, Itami, JP;
Yuji Mizuguchi, Hirakata, JP;
Takahisa Sakai, Amagasaki, JP;
Hirotsugu Kawada, Sakai, JP;
Toshihiko Kurosaki, Kobe, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
A digital data transmission apparatus includes a transmitting end () that includes: a binary/quadrary conversion unit () for converting a data stream; a coding unit () for mapping converted data to be coded; a digital filter (); a D/A conversion unit (); a low-pass filter () for attenuating noises which are caused by folding distortion; a differential driver (); low-pass filters () and () for eliminating noises from differentially outputted signals; and a common mode choke coil () for eliminating common mode noises and outputting a resultant signal to a twisted pair cable (), and a receiving end () that includes: a low-pass filter () for eliminating noises from the twisted pair cable; a receiver (); an A/D conversion unit (); a digital filter (); an evaluation unit () for evaluating a signal level of a received signal; a decoding unit () for decoding the signal level into received data; and a synchronization unit () for generating a clock.