Scan path for encoding and decoding two-dimensional signals
US5515296A · kind A · utility
156Cited by
2References
62Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 29, 1994 |
| Grant date | May 7, 1996 |
| Priority date | — |
| Expiry date | Jun 29, 2014 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04Q2213/13337
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A scan path is generated using one or more two-dimensional sets of training signals. For encoding, a two-dimensional set of signals is encoded using the scan path. For decoding, a two-dimensional set of encoded signals is decoded using the scan path. In a preferred embodiment, a plurality of different scan paths are generated for a plurality of quantization levels; signals are transformed and quantized using selected quantization levels; and the quantized, transformed signals are encoded using the scan paths corresponding to the selected quantization levels.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.