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:
Dec. 18, 2001
Filed:
Feb. 04, 1999
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
A disk control apparatus according to the present invention comprising a disk controller for controlling a circuit which controls read operation for reading data from a disk and a CPU for controlling the circuit and the disk controller. The disk controller comprises a buffer memory for storing data being for transferred between a host and the disk controller and a notification section for notifying the CPU that a first state in which an all buffer region of the buffer memory is stored with data to be transferred to the host transits to a second state in which a predetermined space occurs in the buffer region of the buffer memory as a result of transferring data to the host. The CPU comprises a main control section for stopping power supply to the circuit during the first state and for supplying power to the circuit in response to a notification from the notification section.