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. 02, 1996
Filed:
Oct. 14, 1994
Toshiaki Mabuchi, Tokyo, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A data transfer system includes first and second microprocessors, each having a data input portion, a data output portion, and a data transfer control signal input/output portion to input or output a data transfer request signal for requesting permission for transfer of data or a data transfer permission signal representing the permission for transfer of data. A first data transfer path connects the data output portion of the first microprocessor with the data input portion of the second microprocessor. A second data transfer path connects the data output portion of the second microprocessor with the data input portion of the first microprocessor. A data transfer control signal transmitting path connects the data transfer control signal input/output portion of the first microprocessor with the data transfer control signal input/output portion of the second microprocessor to feed the data transfer request signal or the data transfer permission signal between the microprocessors.