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:
Mar. 29, 2005
Filed:
Feb. 27, 2003
Toshihiko Higashi, Osaka, JP;
Toshihiro Matsumura, Shiga, JP;
Toshihiko Higashi, Osaka, JP;
Toshihiro Matsumura, Shiga, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
The microcomputer includes a CPU, a ROM, an OSD circuit, a wait signal generation circuit and a bus switch circuit. The ROM stores a program to be executed by the CPU and display data to be on-screen displayed on a display. The OSD circuit reads the display data stored in the ROM and outputs the read data to the display. The wait signal generation circuit generates a wait signal having a first level of a first time period and a second level of a second time period repeated alternately. The wait signal generation circuit determines the length of the first time period according to the amount of the display data to be read from the ROM to the OSD circuit. The bus switch circuit establishes a bus between the OSD circuit and the ROM when the wait signal is in the first level, and establishes a bus between the CPU and the ROM when the wait signal is in the second level.