Information recording device and information output device
US5859950A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 17, 1996 |
| Grant date | Jan 12, 1999 |
| Priority date | — |
| Expiry date | Oct 17, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N2005/91328
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An MPU 1 decomposes video-audio information which is externally inputted and stored into a second temporary storage area 32 for each parameter included in a sequence layer and the like, and further into video information and audio information, and stores the information into a third temporary storage area 33. Next, the MPU 1 extracts a predetermined quality deterioration parameter from the parameters stored in the third temporary storage area 33 and stores a prescribed value in the storage area in which that quality deteriaration parameter was stored. The MPU 1 then composes the video-audio information stored in the third temporary storage area 33 again and stores the composed video-audio information (quality deteriorated) into a fourth temporary storage area 34. Next, the MPU 1 outputs the video-audio information (quality deteriorated) stored in the fourth temporary storage area 34 to a first recording device 4 and causes the first recording device 4 to write the video-audio information (quality deteriorated) on a copy target recording medium 4. Thus the size of the display screen of the video-audio information (quality deteriorated) differs from that of the video-audio informatio…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.