Data decoding method and system
US5812873A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 29, 1995 |
| Grant date | Sep 22, 1998 |
| Priority date | — |
| Expiry date | Nov 29, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/00
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An address generating circuit generates addresses. A decoder reads compressed data from a recording medium according to the addresses supplied by the address generating circuit and decodes thus-read data. An address switching circuit selects one of an address supplied by the address generating circuit and an address supplied from an external address bus. A data switching circuit selects one of data supplied from the recording medium and data supplied by the decoder. The decoder circuits enters one of a through mode and a decoding mode, input data being output as it is in the through mode, input compressed data being decoded and the thus-decoded data being output in the decoding mode. When an address relevant to the recording medium is given externally, the decoder circuit enters the through mode and data thus read out from the recording medium is output to the data bus, and when an address relevant to the recording medium is given from the address generating circuit, the decoder circuit enters the decoding mode, reads compressed data from the recording medium, decodes it and outputs the decoded data to the data bus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.