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. 11, 2000
Filed:
Jan. 23, 1997
Naoto Kagaya, Yokohama, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A digital signal radio communication system employing frequency hopping for multi-purpose data processing apparatuses communicates predetermined information to a multi-purpose data processing apparatus by transmitting a carrier to a predetermined number of time slots of a communication frame having a plurality of time slots and communicates different information in accordance with which time slot the carrier is to be transmitted to among the plurality of time slots. A detector detects whether the carrier is in the predetermined number of time slots among the plurality of time slots or in more than the predetermined number of time slots. A controller performs control based on the carrier when the detector detects that the carrier is in the predetermined time slots, and judges that noise is generated when the detector detects the carrier in more than the predetermined number of time slots.