Entertainment apparatus having compatibility and computer system
US6677951B2 · kind B2 · utility
1Cited by
7References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 2, 2001 |
| Grant date | Jan 13, 2004 |
| Priority date | — |
| Expiry date | Sep 17, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04S1/007
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An entertainment apparatus is configured to enable a program for an older version of the apparatus to be executed. In a normal mode, a main processing unit (MPU) operates as a main CPU, a graphics processor (GP) operates as a graphics processor, and an input/output subprocessor (IOP) operates as a subprocessor for input and output. In a compatible mode in which a program for an older version of the apparatus is executed, the IOP capable of executing the program for the older version of the apparatus operates as a main CPU, and the MPU and GP emulate a graphics processor for the older version of the apparatus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.