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:
Nov. 28, 2000
Filed:
Jan. 05, 1998
Hirotaka Hara, Pasadena, CA (US);
Tadashi Saitoh, Koganei, JP;
Junichi Kimura, Hachioji, JP;
Yutaka Okunoki, Kawaguchi, JP;
Hitachi, Ltd., Tokyo, JP;
Sega Enterprises, Ltd., Tokyo, JP;
Abstract
An image output apparatus capable of realizing asynchronous data access by a host controller in response to an image data transfer request from the host controller, by adding a minimum amount of circuitry to the image output apparatus without using an external data buffer. The image output apparatus includes: a storage device for storing image data; a display circuit for sequentially reading the image data from the storage device and converting the image data into image data capable of being displayed; a timing controller for controlling the operation timing of the display circuit; and an output circuit for changing an operation mode of the timing controller in response to a data transfer request from the host controller and allowing the image data corresponding in amount to the data transfer request to be outputted asynchronously.