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:
Jul. 26, 2011
Filed:
Apr. 23, 2007
Hideaki Murayama, Kanagawa, JP;
Nobuyuki Ishikawa, Kanagawa, JP;
Yoshihiro Morioka, Kanagawa, JP;
Sony Corporation, Tokyo, JP;
Abstract
A digital signal transmission apparatus that transmits a digital signal to another apparatus via a coaxial cable connected therebetween includes a signal divider configured to divide a digital signal to be transmitted into a plurality of signal groups; a plurality of modulators configured to modulate each of the plurality of signal groups obtained by the signal divider by using an orthogonal frequency division multiplexing method; a plurality of frequency shifters configured to shift each of the frequency bands of a plurality of modulation signals generated by the plurality of modulators from a baseband to a mutually different frequency band; and a signal sender configured to combine a plurality of modulation signals whose frequency bands are shifted by the plurality of frequency shifters and to transmit the signals to the coaxial cable.