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:
Apr. 20, 2010
Filed:
Jun. 01, 2004
Wataru Onodera, Tokorozawa, JP;
Makoto Matsumaru, Tokorozawa, JP;
Wataru Onodera, Tokorozawa, JP;
Makoto Matsumaru, Tokorozawa, JP;
Pioneer Corporation, Tokyo, JP;
Abstract
A communication device () has a controller () that has a maximum speed information requesting section adapted to transmit a maximum speed information requesting command at the minimum one of the stepwise differentiated transmission speeds, requesting transmission in return of maximum speed information for another communication device, a maximum speed information acquisition section adapted to acquire maximum speed information, a confirmation information transmitting section adapted to transmit confirmation information, switching the transmission speed within a range between the upper limit equal to the maximum transmission speed for the communication device () or that for the another communication device, whichever lower, and the lower limit equal to the transmission speed higher than the minimum transmission speed by a step and a transmission speed selecting section adapted to select the maximum transmission speed at which it can acquire the reception information from said another communication device as transmission speed for transmitting data to said another communication device for data communication.