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:
Sep. 25, 2001
Filed:
Jul. 28, 1997
Hideo Horigome, Yokohama, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A data receiving apparatus which performs a handshake reception to set a busy signal upon reception of data and reset the busy signal upon storage of the received data in a buffer. The apparatus includes a busy extension unit and a reset control unit. The busy extension unit is for extending the set busy signal by a predetermined time period and resetting the busy signal after expiration of the predetermined time period, when a free capacity of the buffer becomes smaller than a first value in process of performing the handshake reception. The reset control unit enables the busy extension unit to reset the busy signal after expiration of the predetermined time period, if the free capacity of the buffer does not reach a second value during the predetermined time period, and for disabling the busy extension unit and resetting the busy signal prior to expiration of the predetermined time period, if the free capacity of the buffer does reach the second value during the predetermined time period.