Transmission device and transmission method
US5899577A · kind A · utility
5Cited by
3References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 8, 1996 |
| Grant date | May 4, 1999 |
| Priority date | — |
| Expiry date | Apr 8, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N9/8042
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In a transmission device, an image signal and an audio signal are played back at a speed n times normal speed from a recording medium and the played back image signal is encoded. The played back audio signal is sampled using a sampling clock signal of a sampling frequency which is proportional to the speed n times normal speed. When n>1, 1/n items of sampling data of the sampling data generated by sampling is encoded. When n<1, all of the sampling data generated by sampling is encoded. The encoded image signal and encoded audio signal are then transmitted to a terminal device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.